/* * Internet Printing Protocol functions for CUPS. * * Copyright © 2007-2019 by Apple Inc. * Copyright © 1997-2007 by Easy Software Products, all rights reserved. * * Licensed under Apache License v2.0. See the file "LICENSE" for more * information. */ /* * Include necessary headers... */ #include "cups-private.h" #include "debug-internal.h" #include #ifdef _WIN32 # include #endif /* _WIN32 */ /* * Local functions... */ static ipp_attribute_t *ipp_add_attr(ipp_t *ipp, const char *name, ipp_tag_t group_tag, ipp_tag_t value_tag, int num_values); static void ipp_free_values(ipp_attribute_t *attr, int element, int count); static char *ipp_get_code(const char *locale, char *buffer, size_t bufsize) _CUPS_NONNULL(1,2); static char *ipp_lang_code(const char *locale, char *buffer, size_t bufsize) _CUPS_NONNULL(1,2); static size_t ipp_length(ipp_t *ipp, int collection); static ssize_t ipp_read_http(http_t *http, ipp_uchar_t *buffer, size_t length); static ssize_t ipp_read_file(int *fd, ipp_uchar_t *buffer, size_t length); static void ipp_set_error(ipp_status_t status, const char *format, ...); static _ipp_value_t *ipp_set_value(ipp_t *ipp, ipp_attribute_t **attr, int element); static ssize_t ipp_write_file(int *fd, ipp_uchar_t *buffer, size_t length); /* * '_cupsBufferGet()' - Get a read/write buffer. */ char * /* O - Buffer */ _cupsBufferGet(size_t size) /* I - Size required */ { _cups_buffer_t *buffer; /* Current buffer */ _cups_globals_t *cg = _cupsGlobals(); /* Global data */ for (buffer = cg->cups_buffers; buffer; buffer = buffer->next) if (!buffer->used && buffer->size >= size) break; if (!buffer) { if ((buffer = malloc(sizeof(_cups_buffer_t) + size - 1)) == NULL) return (NULL); buffer->next = cg->cups_buffers; buffer->size = size; cg->cups_buffers = buffer; } buffer->used = 1; return (buffer->d); } /* * '_cupsBufferRelease()' - Release a read/write buffer. */ void _cupsBufferRelease(char *b) /* I - Buffer to release */ { _cups_buffer_t *buffer; /* Buffer */ /* * Mark this buffer as unused... */ buffer = (_cups_buffer_t *)(b - offsetof(_cups_buffer_t, d)); buffer->used = 0; } /* * 'ippAddBoolean()' - Add a boolean attribute to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). */ ipp_attribute_t * /* O - New attribute */ ippAddBoolean(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ const char *name, /* I - Name of attribute */ char value) /* I - Value of attribute */ { ipp_attribute_t *attr; /* New attribute */ DEBUG_printf(("ippAddBoolean(ipp=%p, group=%02x(%s), name=\"%s\", value=%d)", (void *)ipp, group, ippTagString(group), name, value)); /* * Range check input... */ if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE) return (NULL); /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_BOOLEAN, 1)) == NULL) return (NULL); attr->values[0].boolean = value; return (attr); } /* * 'ippAddBooleans()' - Add an array of boolean values. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). */ ipp_attribute_t * /* O - New attribute */ ippAddBooleans(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ const char *name, /* I - Name of attribute */ int num_values, /* I - Number of values */ const char *values) /* I - Values */ { int i; /* Looping var */ ipp_attribute_t *attr; /* New attribute */ _ipp_value_t *value; /* Current value */ DEBUG_printf(("ippAddBooleans(ipp=%p, group=%02x(%s), name=\"%s\", num_values=%d, values=%p)", (void *)ipp, group, ippTagString(group), name, num_values, (void *)values)); /* * Range check input... */ if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || num_values < 1) return (NULL); /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_BOOLEAN, num_values)) == NULL) return (NULL); if (values) { for (i = num_values, value = attr->values; i > 0; i --, value ++) value->boolean = *values++; } return (attr); } /* * 'ippAddCollection()' - Add a collection value. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * @since CUPS 1.1.19/macOS 10.3@ */ ipp_attribute_t * /* O - New attribute */ ippAddCollection(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ const char *name, /* I - Name of attribute */ ipp_t *value) /* I - Value */ { ipp_attribute_t *attr; /* New attribute */ DEBUG_printf(("ippAddCollection(ipp=%p, group=%02x(%s), name=\"%s\", value=%p)", (void *)ipp, group, ippTagString(group), name, (void *)value)); /* * Range check input... */ if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE) return (NULL); /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_BEGIN_COLLECTION, 1)) == NULL) return (NULL); attr->values[0].collection = value; if (value) value->use ++; return (attr); } /* * 'ippAddCollections()' - Add an array of collection values. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * @since CUPS 1.1.19/macOS 10.3@ */ ipp_attribute_t * /* O - New attribute */ ippAddCollections( ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ const char *name, /* I - Name of attribute */ int num_values, /* I - Number of values */ const ipp_t **values) /* I - Values */ { int i; /* Looping var */ ipp_attribute_t *attr; /* New attribute */ _ipp_value_t *value; /* Current value */ DEBUG_printf(("ippAddCollections(ipp=%p, group=%02x(%s), name=\"%s\", num_values=%d, values=%p)", (void *)ipp, group, ippTagString(group), name, num_values, (void *)values)); /* * Range check input... */ if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || num_values < 1) return (NULL); /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_BEGIN_COLLECTION, num_values)) == NULL) return (NULL); if (values) { for (i = num_values, value = attr->values; i > 0; i --, value ++) { value->collection = (ipp_t *)*values++; value->collection->use ++; } } return (attr); } /* * 'ippAddDate()' - Add a dateTime attribute to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). */ ipp_attribute_t * /* O - New attribute */ ippAddDate(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ const char *name, /* I - Name of attribute */ const ipp_uchar_t *value) /* I - Value */ { ipp_attribute_t *attr; /* New attribute */ DEBUG_printf(("ippAddDate(ipp=%p, group=%02x(%s), name=\"%s\", value=%p)", (void *)ipp, group, ippTagString(group), name, (void *)value)); /* * Range check input... */ if (!ipp || !name || !value || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE) return (NULL); /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_DATE, 1)) == NULL) return (NULL); memcpy(attr->values[0].date, value, 11); return (attr); } /* * 'ippAddInteger()' - Add a integer attribute to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * Supported values include enum (@code IPP_TAG_ENUM@) and integer * (@code IPP_TAG_INTEGER@). */ ipp_attribute_t * /* O - New attribute */ ippAddInteger(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ ipp_tag_t value_tag, /* I - Type of attribute */ const char *name, /* I - Name of attribute */ int value) /* I - Value of attribute */ { ipp_attribute_t *attr; /* New attribute */ DEBUG_printf(("ippAddInteger(ipp=%p, group=%02x(%s), type=%02x(%s), name=\"%s\", value=%d)", (void *)ipp, group, ippTagString(group), value_tag, ippTagString(value_tag), name, value)); value_tag &= IPP_TAG_CUPS_MASK; /* * Special-case for legacy usage: map out-of-band attributes to new ippAddOutOfBand * function... */ if (value_tag >= IPP_TAG_UNSUPPORTED_VALUE && value_tag <= IPP_TAG_ADMINDEFINE) return (ippAddOutOfBand(ipp, group, value_tag, name)); /* * Range check input... */ #if 0 if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || (value_tag != IPP_TAG_INTEGER && value_tag != IPP_TAG_ENUM)) return (NULL); #else if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE) return (NULL); #endif /* 0 */ /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, value_tag, 1)) == NULL) return (NULL); attr->values[0].integer = value; return (attr); } /* * 'ippAddIntegers()' - Add an array of integer values. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * Supported values include enum (@code IPP_TAG_ENUM@) and integer * (@code IPP_TAG_INTEGER@). */ ipp_attribute_t * /* O - New attribute */ ippAddIntegers(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ ipp_tag_t value_tag, /* I - Type of attribute */ const char *name, /* I - Name of attribute */ int num_values, /* I - Number of values */ const int *values) /* I - Values */ { int i; /* Looping var */ ipp_attribute_t *attr; /* New attribute */ _ipp_value_t *value; /* Current value */ DEBUG_printf(("ippAddIntegers(ipp=%p, group=%02x(%s), type=%02x(%s), name=\"%s\", num_values=%d, values=%p)", (void *)ipp, group, ippTagString(group), value_tag, ippTagString(value_tag), name, num_values, (void *)values)); value_tag &= IPP_TAG_CUPS_MASK; /* * Range check input... */ #if 0 if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || (value_tag != IPP_TAG_INTEGER && value_tag != IPP_TAG_ENUM) || num_values < 1) return (NULL); #else if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || num_values < 1) return (NULL); #endif /* 0 */ /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, value_tag, num_values)) == NULL) return (NULL); if (values) { for (i = num_values, value = attr->values; i > 0; i --, value ++) value->integer = *values++; } return (attr); } /* * 'ippAddOctetString()' - Add an octetString value to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * @since CUPS 1.2/macOS 10.5@ */ ipp_attribute_t * /* O - New attribute */ ippAddOctetString(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ const char *name, /* I - Name of attribute */ const void *data, /* I - octetString data */ int datalen) /* I - Length of data in bytes */ { ipp_attribute_t *attr; /* New attribute */ if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || datalen < 0 || datalen > IPP_MAX_LENGTH) return (NULL); if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_STRING, 1)) == NULL) return (NULL); /* * Initialize the attribute data... */ attr->values[0].unknown.length = datalen; if (data) { if ((attr->values[0].unknown.data = malloc((size_t)datalen)) == NULL) { ippDeleteAttribute(ipp, attr); return (NULL); } memcpy(attr->values[0].unknown.data, data, (size_t)datalen); } /* * Return the new attribute... */ return (attr); } /* * 'ippAddOutOfBand()' - Add an out-of-band value to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * Supported out-of-band values include unsupported-value * (@code IPP_TAG_UNSUPPORTED_VALUE@), default (@code IPP_TAG_DEFAULT@), unknown * (@code IPP_TAG_UNKNOWN@), no-value (@code IPP_TAG_NOVALUE@), not-settable * (@code IPP_TAG_NOTSETTABLE@), delete-attribute (@code IPP_TAG_DELETEATTR@), and * admin-define (@code IPP_TAG_ADMINDEFINE@). * * @since CUPS 1.6/macOS 10.8@ */ ipp_attribute_t * /* O - New attribute */ ippAddOutOfBand(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ ipp_tag_t value_tag, /* I - Type of attribute */ const char *name) /* I - Name of attribute */ { DEBUG_printf(("ippAddOutOfBand(ipp=%p, group=%02x(%s), value_tag=%02x(%s), name=\"%s\")", (void *)ipp, group, ippTagString(group), value_tag, ippTagString(value_tag), name)); value_tag &= IPP_TAG_CUPS_MASK; /* * Range check input... */ if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || (value_tag != IPP_TAG_UNSUPPORTED_VALUE && value_tag != IPP_TAG_DEFAULT && value_tag != IPP_TAG_UNKNOWN && value_tag != IPP_TAG_NOVALUE && value_tag != IPP_TAG_NOTSETTABLE && value_tag != IPP_TAG_DELETEATTR && value_tag != IPP_TAG_ADMINDEFINE)) return (NULL); /* * Create the attribute... */ return (ipp_add_attr(ipp, name, group, value_tag, 1)); } /* * 'ippAddRange()' - Add a range of values to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * The @code lower@ parameter must be less than or equal to the @code upper@ parameter. */ ipp_attribute_t * /* O - New attribute */ ippAddRange(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ const char *name, /* I - Name of attribute */ int lower, /* I - Lower value */ int upper) /* I - Upper value */ { ipp_attribute_t *attr; /* New attribute */ DEBUG_printf(("ippAddRange(ipp=%p, group=%02x(%s), name=\"%s\", lower=%d, upper=%d)", (void *)ipp, group, ippTagString(group), name, lower, upper)); /* * Range check input... */ if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE) return (NULL); /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_RANGE, 1)) == NULL) return (NULL); attr->values[0].range.lower = lower; attr->values[0].range.upper = upper; return (attr); } /* * 'ippAddRanges()' - Add ranges of values to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). */ ipp_attribute_t * /* O - New attribute */ ippAddRanges(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ const char *name, /* I - Name of attribute */ int num_values, /* I - Number of values */ const int *lower, /* I - Lower values */ const int *upper) /* I - Upper values */ { int i; /* Looping var */ ipp_attribute_t *attr; /* New attribute */ _ipp_value_t *value; /* Current value */ DEBUG_printf(("ippAddRanges(ipp=%p, group=%02x(%s), name=\"%s\", num_values=%d, lower=%p, upper=%p)", (void *)ipp, group, ippTagString(group), name, num_values, (void *)lower, (void *)upper)); /* * Range check input... */ if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || num_values < 1) return (NULL); /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_RANGE, num_values)) == NULL) return (NULL); if (lower && upper) { for (i = num_values, value = attr->values; i > 0; i --, value ++) { value->range.lower = *lower++; value->range.upper = *upper++; } } return (attr); } /* * 'ippAddResolution()' - Add a resolution value to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). */ ipp_attribute_t * /* O - New attribute */ ippAddResolution(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ const char *name, /* I - Name of attribute */ ipp_res_t units, /* I - Units for resolution */ int xres, /* I - X resolution */ int yres) /* I - Y resolution */ { ipp_attribute_t *attr; /* New attribute */ DEBUG_printf(("ippAddResolution(ipp=%p, group=%02x(%s), name=\"%s\", units=%d, xres=%d, yres=%d)", (void *)ipp, group, ippTagString(group), name, units, xres, yres)); /* * Range check input... */ if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || units < IPP_RES_PER_INCH || units > IPP_RES_PER_CM || xres < 0 || yres < 0) return (NULL); /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_RESOLUTION, 1)) == NULL) return (NULL); attr->values[0].resolution.xres = xres; attr->values[0].resolution.yres = yres; attr->values[0].resolution.units = units; return (attr); } /* * 'ippAddResolutions()' - Add resolution values to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). */ ipp_attribute_t * /* O - New attribute */ ippAddResolutions(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ const char *name, /* I - Name of attribute */ int num_values,/* I - Number of values */ ipp_res_t units, /* I - Units for resolution */ const int *xres, /* I - X resolutions */ const int *yres) /* I - Y resolutions */ { int i; /* Looping var */ ipp_attribute_t *attr; /* New attribute */ _ipp_value_t *value; /* Current value */ DEBUG_printf(("ippAddResolutions(ipp=%p, group=%02x(%s), name=\"%s\", num_value=%d, units=%d, xres=%p, yres=%p)", (void *)ipp, group, ippTagString(group), name, num_values, units, (void *)xres, (void *)yres)); /* * Range check input... */ if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || num_values < 1 || units < IPP_RES_PER_INCH || units > IPP_RES_PER_CM) return (NULL); /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, IPP_TAG_RESOLUTION, num_values)) == NULL) return (NULL); if (xres && yres) { for (i = num_values, value = attr->values; i > 0; i --, value ++) { value->resolution.xres = *xres++; value->resolution.yres = *yres++; value->resolution.units = units; } } return (attr); } /* * 'ippAddSeparator()' - Add a group separator to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. */ ipp_attribute_t * /* O - New attribute */ ippAddSeparator(ipp_t *ipp) /* I - IPP message */ { DEBUG_printf(("ippAddSeparator(ipp=%p)", (void *)ipp)); /* * Range check input... */ if (!ipp) return (NULL); /* * Create the attribute... */ return (ipp_add_attr(ipp, NULL, IPP_TAG_ZERO, IPP_TAG_ZERO, 0)); } /* * 'ippAddString()' - Add a language-encoded string to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * Supported string values include charset (@code IPP_TAG_CHARSET@), keyword * (@code IPP_TAG_KEYWORD@), language (@code IPP_TAG_LANGUAGE@), mimeMediaType * (@code IPP_TAG_MIMETYPE@), name (@code IPP_TAG_NAME@), nameWithLanguage * (@code IPP_TAG_NAMELANG), text (@code IPP_TAG_TEXT@), textWithLanguage * (@code IPP_TAG_TEXTLANG@), uri (@code IPP_TAG_URI@), and uriScheme * (@code IPP_TAG_URISCHEME@). * * The @code language@ parameter must be non-@code NULL@ for nameWithLanguage and * textWithLanguage string values and must be @code NULL@ for all other string values. */ ipp_attribute_t * /* O - New attribute */ ippAddString(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ ipp_tag_t value_tag, /* I - Type of attribute */ const char *name, /* I - Name of attribute */ const char *language, /* I - Language code */ const char *value) /* I - Value */ { ipp_tag_t temp_tag; /* Temporary value tag (masked) */ ipp_attribute_t *attr; /* New attribute */ char code[IPP_MAX_LANGUAGE]; /* Charset/language code buffer */ DEBUG_printf(("ippAddString(ipp=%p, group=%02x(%s), value_tag=%02x(%s), name=\"%s\", language=\"%s\", value=\"%s\")", (void *)ipp, group, ippTagString(group), value_tag, ippTagString(value_tag), name, language, value)); /* * Range check input... */ temp_tag = (ipp_tag_t)((int)value_tag & IPP_TAG_CUPS_MASK); #if 0 if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || (temp_tag < IPP_TAG_TEXT && temp_tag != IPP_TAG_TEXTLANG && temp_tag != IPP_TAG_NAMELANG) || temp_tag > IPP_TAG_MIMETYPE) return (NULL); if ((temp_tag == IPP_TAG_TEXTLANG || temp_tag == IPP_TAG_NAMELANG) != (language != NULL)) return (NULL); #else if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE) return (NULL); #endif /* 0 */ /* * See if we need to map charset, language, or locale values... */ if (language && ((int)value_tag & IPP_TAG_CUPS_CONST) && strcmp(language, ipp_lang_code(language, code, sizeof(code)))) value_tag = temp_tag; /* Don't do a fast copy */ else if (value && value_tag == (ipp_tag_t)(IPP_TAG_CHARSET | IPP_TAG_CUPS_CONST) && strcmp(value, ipp_get_code(value, code, sizeof(code)))) value_tag = temp_tag; /* Don't do a fast copy */ else if (value && value_tag == (ipp_tag_t)(IPP_TAG_LANGUAGE | IPP_TAG_CUPS_CONST) && strcmp(value, ipp_lang_code(value, code, sizeof(code)))) value_tag = temp_tag; /* Don't do a fast copy */ /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, value_tag, 1)) == NULL) return (NULL); /* * Initialize the attribute data... */ if ((int)value_tag & IPP_TAG_CUPS_CONST) { attr->values[0].string.language = (char *)language; attr->values[0].string.text = (char *)value; } else { if (language) attr->values[0].string.language = _cupsStrAlloc(ipp_lang_code(language, code, sizeof(code))); if (value) { if (value_tag == IPP_TAG_CHARSET) attr->values[0].string.text = _cupsStrAlloc(ipp_get_code(value, code, sizeof(code))); else if (value_tag == IPP_TAG_LANGUAGE) attr->values[0].string.text = _cupsStrAlloc(ipp_lang_code(value, code, sizeof(code))); else attr->values[0].string.text = _cupsStrAlloc(value); } } return (attr); } /* * 'ippAddStringf()' - Add a formatted string to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document * (@code IPP_TAG_DOCUMENT@), event notification * (@code IPP_TAG_EVENT_NOTIFICATION@), operation (@code IPP_TAG_OPERATION@), * printer (@code IPP_TAG_PRINTER@), subscription (@code IPP_TAG_SUBSCRIPTION@), * or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * Supported string values include charset (@code IPP_TAG_CHARSET@), keyword * (@code IPP_TAG_KEYWORD@), language (@code IPP_TAG_LANGUAGE@), mimeMediaType * (@code IPP_TAG_MIMETYPE@), name (@code IPP_TAG_NAME@), nameWithLanguage * (@code IPP_TAG_NAMELANG), text (@code IPP_TAG_TEXT@), textWithLanguage * (@code IPP_TAG_TEXTLANG@), uri (@code IPP_TAG_URI@), and uriScheme * (@code IPP_TAG_URISCHEME@). * * The @code language@ parameter must be non-@code NULL@ for nameWithLanguage * and textWithLanguage string values and must be @code NULL@ for all other * string values. * * The @code format@ parameter uses formatting characters compatible with the * printf family of standard functions. Additional arguments follow it as * needed. The formatted string is truncated as needed to the maximum length of * the corresponding value type. * * @since CUPS 1.7/macOS 10.9@ */ ipp_attribute_t * /* O - New attribute */ ippAddStringf(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ ipp_tag_t value_tag, /* I - Type of attribute */ const char *name, /* I - Name of attribute */ const char *language, /* I - Language code (@code NULL@ for default) */ const char *format, /* I - Printf-style format string */ ...) /* I - Additional arguments as needed */ { ipp_attribute_t *attr; /* New attribute */ va_list ap; /* Argument pointer */ va_start(ap, format); attr = ippAddStringfv(ipp, group, value_tag, name, language, format, ap); va_end(ap); return (attr); } /* * 'ippAddStringfv()' - Add a formatted string to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document * (@code IPP_TAG_DOCUMENT@), event notification * (@code IPP_TAG_EVENT_NOTIFICATION@), operation (@code IPP_TAG_OPERATION@), * printer (@code IPP_TAG_PRINTER@), subscription (@code IPP_TAG_SUBSCRIPTION@), * or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * Supported string values include charset (@code IPP_TAG_CHARSET@), keyword * (@code IPP_TAG_KEYWORD@), language (@code IPP_TAG_LANGUAGE@), mimeMediaType * (@code IPP_TAG_MIMETYPE@), name (@code IPP_TAG_NAME@), nameWithLanguage * (@code IPP_TAG_NAMELANG), text (@code IPP_TAG_TEXT@), textWithLanguage * (@code IPP_TAG_TEXTLANG@), uri (@code IPP_TAG_URI@), and uriScheme * (@code IPP_TAG_URISCHEME@). * * The @code language@ parameter must be non-@code NULL@ for nameWithLanguage * and textWithLanguage string values and must be @code NULL@ for all other * string values. * * The @code format@ parameter uses formatting characters compatible with the * printf family of standard functions. Additional arguments are passed in the * stdarg pointer @code ap@. The formatted string is truncated as needed to the * maximum length of the corresponding value type. * * @since CUPS 1.7/macOS 10.9@ */ ipp_attribute_t * /* O - New attribute */ ippAddStringfv(ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ ipp_tag_t value_tag, /* I - Type of attribute */ const char *name, /* I - Name of attribute */ const char *language, /* I - Language code (@code NULL@ for default) */ const char *format, /* I - Printf-style format string */ va_list ap) /* I - Additional arguments */ { char buffer[IPP_MAX_TEXT + 4]; /* Formatted text string */ ssize_t bytes, /* Length of formatted value */ max_bytes; /* Maximum number of bytes for value */ /* * Range check input... */ if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || (value_tag < IPP_TAG_TEXT && value_tag != IPP_TAG_TEXTLANG && value_tag != IPP_TAG_NAMELANG) || value_tag > IPP_TAG_MIMETYPE || !format) return (NULL); if ((value_tag == IPP_TAG_TEXTLANG || value_tag == IPP_TAG_NAMELANG) != (language != NULL)) return (NULL); /* * Format the string... */ if (!strcmp(format, "%s")) { /* * Optimize the simple case... */ const char *s = va_arg(ap, char *); if (!s) s = "(null)"; bytes = (ssize_t)strlen(s); strlcpy(buffer, s, sizeof(buffer)); } else { /* * Do a full formatting of the message... */ if ((bytes = vsnprintf(buffer, sizeof(buffer), format, ap)) < 0) return (NULL); } /* * Limit the length of the string... */ switch (value_tag) { default : case IPP_TAG_TEXT : case IPP_TAG_TEXTLANG : max_bytes = IPP_MAX_TEXT; break; case IPP_TAG_NAME : case IPP_TAG_NAMELANG : max_bytes = IPP_MAX_NAME; break; case IPP_TAG_CHARSET : max_bytes = IPP_MAX_CHARSET; break; case IPP_TAG_KEYWORD : max_bytes = IPP_MAX_KEYWORD; break; case IPP_TAG_LANGUAGE : max_bytes = IPP_MAX_LANGUAGE; break; case IPP_TAG_MIMETYPE : max_bytes = IPP_MAX_MIMETYPE; break; case IPP_TAG_URI : max_bytes = IPP_MAX_URI; break; case IPP_TAG_URISCHEME : max_bytes = IPP_MAX_URISCHEME; break; } if (bytes >= max_bytes) { char *bufmax, /* Buffer at max_bytes */ *bufptr; /* Pointer into buffer */ bufptr = buffer + strlen(buffer) - 1; bufmax = buffer + max_bytes - 1; while (bufptr > bufmax) { if (*bufptr & 0x80) { while ((*bufptr & 0xc0) == 0x80 && bufptr > buffer) bufptr --; } bufptr --; } *bufptr = '\0'; } /* * Add the formatted string and return... */ return (ippAddString(ipp, group, value_tag, name, language, buffer)); } /* * 'ippAddStrings()' - Add language-encoded strings to an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * Supported string values include charset (@code IPP_TAG_CHARSET@), keyword * (@code IPP_TAG_KEYWORD@), language (@code IPP_TAG_LANGUAGE@), mimeMediaType * (@code IPP_TAG_MIMETYPE@), name (@code IPP_TAG_NAME@), nameWithLanguage * (@code IPP_TAG_NAMELANG), text (@code IPP_TAG_TEXT@), textWithLanguage * (@code IPP_TAG_TEXTLANG@), uri (@code IPP_TAG_URI@), and uriScheme * (@code IPP_TAG_URISCHEME@). * * The @code language@ parameter must be non-@code NULL@ for nameWithLanguage and * textWithLanguage string values and must be @code NULL@ for all other string values. */ ipp_attribute_t * /* O - New attribute */ ippAddStrings( ipp_t *ipp, /* I - IPP message */ ipp_tag_t group, /* I - IPP group */ ipp_tag_t value_tag, /* I - Type of attribute */ const char *name, /* I - Name of attribute */ int num_values, /* I - Number of values */ const char *language, /* I - Language code (@code NULL@ for default) */ const char * const *values) /* I - Values */ { int i; /* Looping var */ ipp_tag_t temp_tag; /* Temporary value tag (masked) */ ipp_attribute_t *attr; /* New attribute */ _ipp_value_t *value; /* Current value */ char code[32]; /* Language/charset value buffer */ DEBUG_printf(("ippAddStrings(ipp=%p, group=%02x(%s), value_tag=%02x(%s), name=\"%s\", num_values=%d, language=\"%s\", values=%p)", (void *)ipp, group, ippTagString(group), value_tag, ippTagString(value_tag), name, num_values, language, (void *)values)); /* * Range check input... */ temp_tag = (ipp_tag_t)((int)value_tag & IPP_TAG_CUPS_MASK); #if 0 if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || (temp_tag < IPP_TAG_TEXT && temp_tag != IPP_TAG_TEXTLANG && temp_tag != IPP_TAG_NAMELANG) || temp_tag > IPP_TAG_MIMETYPE || num_values < 1) return (NULL); if ((temp_tag == IPP_TAG_TEXTLANG || temp_tag == IPP_TAG_NAMELANG) != (language != NULL)) return (NULL); #else if (!ipp || !name || group < IPP_TAG_ZERO || group == IPP_TAG_END || group >= IPP_TAG_UNSUPPORTED_VALUE || num_values < 1) return (NULL); #endif /* 0 */ /* * See if we need to map charset, language, or locale values... */ if (language && ((int)value_tag & IPP_TAG_CUPS_CONST) && strcmp(language, ipp_lang_code(language, code, sizeof(code)))) value_tag = temp_tag; /* Don't do a fast copy */ else if (values && value_tag == (ipp_tag_t)(IPP_TAG_CHARSET | IPP_TAG_CUPS_CONST)) { for (i = 0; i < num_values; i ++) if (strcmp(values[i], ipp_get_code(values[i], code, sizeof(code)))) { value_tag = temp_tag; /* Don't do a fast copy */ break; } } else if (values && value_tag == (ipp_tag_t)(IPP_TAG_LANGUAGE | IPP_TAG_CUPS_CONST)) { for (i = 0; i < num_values; i ++) if (strcmp(values[i], ipp_lang_code(values[i], code, sizeof(code)))) { value_tag = temp_tag; /* Don't do a fast copy */ break; } } /* * Create the attribute... */ if ((attr = ipp_add_attr(ipp, name, group, value_tag, num_values)) == NULL) return (NULL); /* * Initialize the attribute data... */ for (i = num_values, value = attr->values; i > 0; i --, value ++) { if (language) { if (value == attr->values) { if ((int)value_tag & IPP_TAG_CUPS_CONST) value->string.language = (char *)language; else value->string.language = _cupsStrAlloc(ipp_lang_code(language, code, sizeof(code))); } else value->string.language = attr->values[0].string.language; } if (values) { if ((int)value_tag & IPP_TAG_CUPS_CONST) value->string.text = (char *)*values++; else if (value_tag == IPP_TAG_CHARSET) value->string.text = _cupsStrAlloc(ipp_get_code(*values++, code, sizeof(code))); else if (value_tag == IPP_TAG_LANGUAGE) value->string.text = _cupsStrAlloc(ipp_lang_code(*values++, code, sizeof(code))); else value->string.text = _cupsStrAlloc(*values++); } } return (attr); } /* * 'ippContainsInteger()' - Determine whether an attribute contains the * specified value or is within the list of ranges. * * Returns non-zero when the attribute contains either a matching integer or * enum value, or the value falls within one of the rangeOfInteger values for * the attribute. * * @since CUPS 1.7/macOS 10.9@ */ int /* O - 1 on a match, 0 on no match */ ippContainsInteger( ipp_attribute_t *attr, /* I - Attribute */ int value) /* I - Integer/enum value */ { int i; /* Looping var */ _ipp_value_t *avalue; /* Current attribute value */ /* * Range check input... */ if (!attr) return (0); if (attr->value_tag != IPP_TAG_INTEGER && attr->value_tag != IPP_TAG_ENUM && attr->value_tag != IPP_TAG_RANGE) return (0); /* * Compare... */ if (attr->value_tag == IPP_TAG_RANGE) { for (i = attr->num_values, avalue = attr->values; i > 0; i --, avalue ++) if (value >= avalue->range.lower && value <= avalue->range.upper) return (1); } else { for (i = attr->num_values, avalue = attr->values; i > 0; i --, avalue ++) if (value == avalue->integer) return (1); } return (0); } /* * 'ippContainsString()' - Determine whether an attribute contains the * specified string value. * * Returns non-zero when the attribute contains a matching charset, keyword, * naturalLanguage, mimeMediaType, name, text, uri, or uriScheme value. * * @since CUPS 1.7/macOS 10.9@ */ int /* O - 1 on a match, 0 on no match */ ippContainsString( ipp_attribute_t *attr, /* I - Attribute */ const char *value) /* I - String value */ { int i; /* Looping var */ _ipp_value_t *avalue; /* Current attribute value */ DEBUG_printf(("ippContainsString(attr=%p, value=\"%s\")", (void *)attr, value)); /* * Range check input... */ if (!attr || !value) { DEBUG_puts("1ippContainsString: Returning 0 (bad input)"); return (0); } /* * Compare... */ DEBUG_printf(("1ippContainsString: attr %s, %s with %d values.", attr->name, ippTagString(attr->value_tag), attr->num_values)); switch (attr->value_tag & IPP_TAG_CUPS_MASK) { case IPP_TAG_CHARSET : case IPP_TAG_KEYWORD : case IPP_TAG_LANGUAGE : case IPP_TAG_URI : case IPP_TAG_URISCHEME : for (i = attr->num_values, avalue = attr->values; i > 0; i --, avalue ++) { DEBUG_printf(("1ippContainsString: value[%d]=\"%s\"", attr->num_values - i, avalue->string.text)); if (!strcmp(value, avalue->string.text)) { DEBUG_puts("1ippContainsString: Returning 1 (match)"); return (1); } } case IPP_TAG_MIMETYPE : case IPP_TAG_NAME : case IPP_TAG_NAMELANG : case IPP_TAG_TEXT : case IPP_TAG_TEXTLANG : for (i = attr->num_values, avalue = attr->values; i > 0; i --, avalue ++) { DEBUG_printf(("1ippContainsString: value[%d]=\"%s\"", attr->num_values - i, avalue->string.text)); if (!_cups_strcasecmp(value, avalue->string.text)) { DEBUG_puts("1ippContainsString: Returning 1 (match)"); return (1); } } default : break; } DEBUG_puts("1ippContainsString: Returning 0 (no match)"); return (0); } /* * 'ippCopyAttribute()' - Copy an attribute. * * The specified attribute, @code attr@, is copied to the destination IPP message. * When @code quickcopy@ is non-zero, a "shallow" reference copy of the attribute is * created - this should only be done as long as the original source IPP message will * not be freed for the life of the destination. * * @since CUPS 1.6/macOS 10.8@ */ ipp_attribute_t * /* O - New attribute */ ippCopyAttribute( ipp_t *dst, /* I - Destination IPP message */ ipp_attribute_t *srcattr, /* I - Attribute to copy */ int quickcopy) /* I - 1 for a referenced copy, 0 for normal */ { int i; /* Looping var */ ipp_tag_t srctag; /* Source value tag */ ipp_attribute_t *dstattr; /* Destination attribute */ _ipp_value_t *srcval, /* Source value */ *dstval; /* Destination value */ DEBUG_printf(("ippCopyAttribute(dst=%p, srcattr=%p, quickcopy=%d)", (void *)dst, (void *)srcattr, quickcopy)); /* * Range check input... */ if (!dst || !srcattr) return (NULL); /* * Copy it... */ quickcopy = (quickcopy && (srcattr->value_tag & IPP_TAG_CUPS_CONST)) ? IPP_TAG_CUPS_CONST : 0; srctag = srcattr->value_tag & IPP_TAG_CUPS_MASK; switch (srctag) { case IPP_TAG_ZERO : dstattr = ippAddSeparator(dst); break; case IPP_TAG_UNSUPPORTED_VALUE : case IPP_TAG_DEFAULT : case IPP_TAG_UNKNOWN : case IPP_TAG_NOVALUE : case IPP_TAG_NOTSETTABLE : case IPP_TAG_DELETEATTR : case IPP_TAG_ADMINDEFINE : dstattr = ippAddOutOfBand(dst, srcattr->group_tag, srctag, srcattr->name); break; case IPP_TAG_INTEGER : case IPP_TAG_ENUM : case IPP_TAG_BOOLEAN : case IPP_TAG_DATE : case IPP_TAG_RESOLUTION : case IPP_TAG_RANGE : if ((dstattr = ipp_add_attr(dst, srcattr->name, srcattr->group_tag, srctag, srcattr->num_values)) != NULL) memcpy(dstattr->values, srcattr->values, (size_t)srcattr->num_values * sizeof(_ipp_value_t)); break; case IPP_TAG_TEXT : case IPP_TAG_NAME : case IPP_TAG_RESERVED_STRING : case IPP_TAG_KEYWORD : case IPP_TAG_URI : case IPP_TAG_URISCHEME : case IPP_TAG_CHARSET : case IPP_TAG_LANGUAGE : case IPP_TAG_MIMETYPE : if ((dstattr = ippAddStrings(dst, srcattr->group_tag, (ipp_tag_t)(srctag | quickcopy), srcattr->name, srcattr->num_values, NULL, NULL)) == NULL) break; if (quickcopy) { /* * Can safely quick-copy these string values... */ memcpy(dstattr->values, srcattr->values, (size_t)srcattr->num_values * sizeof(_ipp_value_t)); } else { /* * Otherwise do a normal reference counted copy... */ for (i = srcattr->num_values, srcval = srcattr->values, dstval = dstattr->values; i > 0; i --, srcval ++, dstval ++) dstval->string.text = _cupsStrAlloc(srcval->string.text); } break; case IPP_TAG_TEXTLANG : case IPP_TAG_NAMELANG : if ((dstattr = ippAddStrings(dst, srcattr->group_tag, (ipp_tag_t)(srctag | quickcopy), srcattr->name, srcattr->num_values, NULL, NULL)) == NULL) break; if (quickcopy) { /* * Can safely quick-copy these string values... */ memcpy(dstattr->values, srcattr->values, (size_t)srcattr->num_values * sizeof(_ipp_value_t)); } else if (srcattr->value_tag & IPP_TAG_CUPS_CONST) { /* * Otherwise do a normal reference counted copy... */ for (i = srcattr->num_values, srcval = srcattr->values, dstval = dstattr->values; i > 0; i --, srcval ++, dstval ++) { if (srcval == srcattr->values) dstval->string.language = _cupsStrAlloc(srcval->string.language); else dstval->string.language = dstattr->values[0].string.language; dstval->string.text = _cupsStrAlloc(srcval->string.text); } } break; case IPP_TAG_BEGIN_COLLECTION : if ((dstattr = ippAddCollections(dst, srcattr->group_tag, srcattr->name, srcattr->num_values, NULL)) == NULL) break; for (i = srcattr->num_values, srcval = srcattr->values, dstval = dstattr->values; i > 0; i --, srcval ++, dstval ++) { dstval->collection = srcval->collection; srcval->collection->use ++; } break; case IPP_TAG_STRING : default : if ((dstattr = ipp_add_attr(dst, srcattr->name, srcattr->group_tag, srctag, srcattr->num_values)) == NULL) break; for (i = srcattr->num_values, srcval = srcattr->values, dstval = dstattr->values; i > 0; i --, srcval ++, dstval ++) { dstval->unknown.length = srcval->unknown.length; if (dstval->unknown.length > 0) { if ((dstval->unknown.data = malloc((size_t)dstval->unknown.length)) == NULL) dstval->unknown.length = 0; else memcpy(dstval->unknown.data, srcval->unknown.data, (size_t)dstval->unknown.length); } } break; /* anti-compiler-warning-code */ } return (dstattr); } /* * 'ippCopyAttributes()' - Copy attributes from one IPP message to another. * * Zero or more attributes are copied from the source IPP message, @code src@, to the * destination IPP message, @code dst@. When @code quickcopy@ is non-zero, a "shallow" * reference copy of the attribute is created - this should only be done as long as the * original source IPP message will not be freed for the life of the destination. * * The @code cb@ and @code context@ parameters provide a generic way to "filter" the * attributes that are copied - the function must return 1 to copy the attribute or * 0 to skip it. The function may also choose to do a partial copy of the source attribute * itself. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on error */ ippCopyAttributes( ipp_t *dst, /* I - Destination IPP message */ ipp_t *src, /* I - Source IPP message */ int quickcopy, /* I - 1 for a referenced copy, 0 for normal */ ipp_copycb_t cb, /* I - Copy callback or @code NULL@ for none */ void *context) /* I - Context pointer */ { ipp_attribute_t *srcattr; /* Source attribute */ DEBUG_printf(("ippCopyAttributes(dst=%p, src=%p, quickcopy=%d, cb=%p, context=%p)", (void *)dst, (void *)src, quickcopy, (void *)cb, context)); /* * Range check input... */ if (!dst || !src) return (0); /* * Loop through source attributes and copy as needed... */ for (srcattr = src->attrs; srcattr; srcattr = srcattr->next) if (!cb || (*cb)(context, dst, srcattr)) if (!ippCopyAttribute(dst, srcattr, quickcopy)) return (0); return (1); } /* * 'ippDateToTime()' - Convert from RFC 2579 Date/Time format to time in * seconds. */ time_t /* O - UNIX time value */ ippDateToTime(const ipp_uchar_t *date) /* I - RFC 2579 date info */ { struct tm unixdate; /* UNIX date/time info */ time_t t; /* Computed time */ if (!date) return (0); memset(&unixdate, 0, sizeof(unixdate)); /* * RFC-2579 date/time format is: * * Byte(s) Description * ------- ----------- * 0-1 Year (0 to 65535) * 2 Month (1 to 12) * 3 Day (1 to 31) * 4 Hours (0 to 23) * 5 Minutes (0 to 59) * 6 Seconds (0 to 60, 60 = "leap second") * 7 Deciseconds (0 to 9) * 8 +/- UTC * 9 UTC hours (0 to 11) * 10 UTC minutes (0 to 59) */ unixdate.tm_year = ((date[0] << 8) | date[1]) - 1900; unixdate.tm_mon = date[2] - 1; unixdate.tm_mday = date[3]; unixdate.tm_hour = date[4]; unixdate.tm_min = date[5]; unixdate.tm_sec = date[6]; t = mktime(&unixdate); if (date[8] == '-') t += date[9] * 3600 + date[10] * 60; else t -= date[9] * 3600 + date[10] * 60; return (t); } /* * 'ippDelete()' - Delete an IPP message. */ void ippDelete(ipp_t *ipp) /* I - IPP message */ { ipp_attribute_t *attr, /* Current attribute */ *next; /* Next attribute */ DEBUG_printf(("ippDelete(ipp=%p)", (void *)ipp)); if (!ipp) return; ipp->use --; if (ipp->use > 0) { DEBUG_printf(("4debug_retain: %p IPP message (use=%d)", (void *)ipp, ipp->use)); return; } DEBUG_printf(("4debug_free: %p IPP message", (void *)ipp)); for (attr = ipp->attrs; attr != NULL; attr = next) { next = attr->next; DEBUG_printf(("4debug_free: %p %s %s%s (%d values)", (void *)attr, attr->name, attr->num_values > 1 ? "1setOf " : "", ippTagString(attr->value_tag), attr->num_values)); ipp_free_values(attr, 0, attr->num_values); if (attr->name) _cupsStrFree(attr->name); free(attr); } free(ipp); } /* * 'ippDeleteAttribute()' - Delete a single attribute in an IPP message. * * @since CUPS 1.1.19/macOS 10.3@ */ void ippDeleteAttribute( ipp_t *ipp, /* I - IPP message */ ipp_attribute_t *attr) /* I - Attribute to delete */ { ipp_attribute_t *current, /* Current attribute */ *prev; /* Previous attribute */ DEBUG_printf(("ippDeleteAttribute(ipp=%p, attr=%p(%s))", (void *)ipp, (void *)attr, attr ? attr->name : "(null)")); /* * Range check input... */ if (!attr) return; DEBUG_printf(("4debug_free: %p %s %s%s (%d values)", (void *)attr, attr->name, attr->num_values > 1 ? "1setOf " : "", ippTagString(attr->value_tag), attr->num_values)); /* * Find the attribute in the list... */ if (ipp) { for (current = ipp->attrs, prev = NULL; current; prev = current, current = current->next) if (current == attr) { /* * Found it, remove the attribute from the list... */ if (prev) prev->next = current->next; else ipp->attrs = current->next; if (current == ipp->last) ipp->last = prev; break; } if (!current) return; } /* * Free memory used by the attribute... */ ipp_free_values(attr, 0, attr->num_values); if (attr->name) _cupsStrFree(attr->name); free(attr); } /* * 'ippDeleteValues()' - Delete values in an attribute. * * The @code element@ parameter specifies the first value to delete, starting at * 0. It must be less than the number of values returned by @link ippGetCount@. * * The @code attr@ parameter may be modified as a result of setting the value. * * Deleting all values in an attribute deletes the attribute. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippDeleteValues( ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - Attribute */ int element, /* I - Index of first value to delete (0-based) */ int count) /* I - Number of values to delete */ { /* * Range check input... */ if (!ipp || !attr || !*attr || element < 0 || element >= (*attr)->num_values || count <= 0 || (element + count) >= (*attr)->num_values) return (0); /* * If we are deleting all values, just delete the attribute entirely. */ if (count == (*attr)->num_values) { ippDeleteAttribute(ipp, *attr); *attr = NULL; return (1); } /* * Otherwise free the values in question and return. */ ipp_free_values(*attr, element, count); return (1); } /* * 'ippFindAttribute()' - Find a named attribute in a request. * * Starting with CUPS 2.0, the attribute name can contain a hierarchical list * of attribute and member names separated by slashes, for example * "media-col/media-size". */ ipp_attribute_t * /* O - Matching attribute */ ippFindAttribute(ipp_t *ipp, /* I - IPP message */ const char *name, /* I - Name of attribute */ ipp_tag_t type) /* I - Type of attribute */ { DEBUG_printf(("2ippFindAttribute(ipp=%p, name=\"%s\", type=%02x(%s))", (void *)ipp, name, type, ippTagString(type))); if (!ipp || !name) return (NULL); /* * Reset the current pointer... */ ipp->current = NULL; ipp->atend = 0; /* * Search for the attribute... */ return (ippFindNextAttribute(ipp, name, type)); } /* * 'ippFindNextAttribute()' - Find the next named attribute in a request. * * Starting with CUPS 2.0, the attribute name can contain a hierarchical list * of attribute and member names separated by slashes, for example * "media-col/media-size". */ ipp_attribute_t * /* O - Matching attribute */ ippFindNextAttribute(ipp_t *ipp, /* I - IPP message */ const char *name, /* I - Name of attribute */ ipp_tag_t type) /* I - Type of attribute */ { ipp_attribute_t *attr, /* Current atttribute */ *childattr; /* Child attribute */ ipp_tag_t value_tag; /* Value tag */ char parent[1024], /* Parent attribute name */ *child = NULL; /* Child attribute name */ DEBUG_printf(("2ippFindNextAttribute(ipp=%p, name=\"%s\", type=%02x(%s))", (void *)ipp, name, type, ippTagString(type))); if (!ipp || !name) return (NULL); DEBUG_printf(("3ippFindNextAttribute: atend=%d", ipp->atend)); if (ipp->atend) return (NULL); if (strchr(name, '/')) { /* * Search for child attribute... */ strlcpy(parent, name, sizeof(parent)); if ((child = strchr(parent, '/')) == NULL) { DEBUG_puts("3ippFindNextAttribute: Attribute name too long."); return (NULL); } *child++ = '\0'; if (ipp->current && ipp->current->name && ipp->current->value_tag == IPP_TAG_BEGIN_COLLECTION && !strcmp(parent, ipp->current->name)) { while (ipp->curindex < ipp->current->num_values) { if ((childattr = ippFindNextAttribute(ipp->current->values[ipp->curindex].collection, child, type)) != NULL) return (childattr); ipp->curindex ++; if (ipp->curindex < ipp->current->num_values && ipp->current->values[ipp->curindex].collection) ipp->current->values[ipp->curindex].collection->current = NULL; } ipp->prev = ipp->current; ipp->current = ipp->current->next; ipp->curindex = 0; if (!ipp->current) { ipp->atend = 1; return (NULL); } } if (!ipp->current) { ipp->prev = NULL; ipp->current = ipp->attrs; ipp->curindex = 0; } name = parent; attr = ipp->current; } else if (ipp->current) { ipp->prev = ipp->current; attr = ipp->current->next; } else { ipp->prev = NULL; attr = ipp->attrs; } for (; attr != NULL; ipp->prev = attr, attr = attr->next) { DEBUG_printf(("4ippFindAttribute: attr=%p, name=\"%s\"", (void *)attr, attr->name)); value_tag = (ipp_tag_t)(attr->value_tag & IPP_TAG_CUPS_MASK); if (attr->name != NULL && _cups_strcasecmp(attr->name, name) == 0 && (value_tag == type || type == IPP_TAG_ZERO || name == parent || (value_tag == IPP_TAG_TEXTLANG && type == IPP_TAG_TEXT) || (value_tag == IPP_TAG_NAMELANG && type == IPP_TAG_NAME))) { ipp->current = attr; if (name == parent && attr->value_tag == IPP_TAG_BEGIN_COLLECTION) { int i; /* Looping var */ for (i = 0; i < attr->num_values; i ++) { if ((childattr = ippFindAttribute(attr->values[i].collection, child, type)) != NULL) { attr->values[0].collection->curindex = i; return (childattr); } } } else return (attr); } } ipp->current = NULL; ipp->prev = NULL; ipp->atend = 1; return (NULL); } /* * 'ippFirstAttribute()' - Return the first attribute in the message. * * @since CUPS 1.6/macOS 10.8@ */ ipp_attribute_t * /* O - First attribute or @code NULL@ if none */ ippFirstAttribute(ipp_t *ipp) /* I - IPP message */ { /* * Range check input... */ if (!ipp) return (NULL); /* * Return the first attribute... */ return (ipp->current = ipp->attrs); } /* * 'ippGetBoolean()' - Get a boolean value for an attribute. * * The @code element@ parameter specifies which value to get from 0 to * @code ippGetCount(attr)@ - 1. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - Boolean value or 0 on error */ ippGetBoolean(ipp_attribute_t *attr, /* I - IPP attribute */ int element) /* I - Value number (0-based) */ { /* * Range check input... */ if (!attr || attr->value_tag != IPP_TAG_BOOLEAN || element < 0 || element >= attr->num_values) return (0); /* * Return the value... */ return (attr->values[element].boolean); } /* * 'ippGetCollection()' - Get a collection value for an attribute. * * The @code element@ parameter specifies which value to get from 0 to * @code ippGetCount(attr)@ - 1. * * @since CUPS 1.6/macOS 10.8@ */ ipp_t * /* O - Collection value or @code NULL@ on error */ ippGetCollection( ipp_attribute_t *attr, /* I - IPP attribute */ int element) /* I - Value number (0-based) */ { /* * Range check input... */ if (!attr || attr->value_tag != IPP_TAG_BEGIN_COLLECTION || element < 0 || element >= attr->num_values) return (NULL); /* * Return the value... */ return (attr->values[element].collection); } /* * 'ippGetCount()' - Get the number of values in an attribute. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - Number of values or 0 on error */ ippGetCount(ipp_attribute_t *attr) /* I - IPP attribute */ { /* * Range check input... */ if (!attr) return (0); /* * Return the number of values... */ return (attr->num_values); } /* * 'ippGetDate()' - Get a dateTime value for an attribute. * * The @code element@ parameter specifies which value to get from 0 to * @code ippGetCount(attr)@ - 1. * * @since CUPS 1.6/macOS 10.8@ */ const ipp_uchar_t * /* O - dateTime value or @code NULL@ */ ippGetDate(ipp_attribute_t *attr, /* I - IPP attribute */ int element) /* I - Value number (0-based) */ { /* * Range check input... */ if (!attr || attr->value_tag != IPP_TAG_DATE || element < 0 || element >= attr->num_values) return (NULL); /* * Return the value... */ return (attr->values[element].date); } /* * 'ippGetGroupTag()' - Get the group associated with an attribute. * * @since CUPS 1.6/macOS 10.8@ */ ipp_tag_t /* O - Group tag or @code IPP_TAG_ZERO@ on error */ ippGetGroupTag(ipp_attribute_t *attr) /* I - IPP attribute */ { /* * Range check input... */ if (!attr) return (IPP_TAG_ZERO); /* * Return the group... */ return (attr->group_tag); } /* * 'ippGetInteger()' - Get the integer/enum value for an attribute. * * The @code element@ parameter specifies which value to get from 0 to * @code ippGetCount(attr)@ - 1. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - Value or 0 on error */ ippGetInteger(ipp_attribute_t *attr, /* I - IPP attribute */ int element) /* I - Value number (0-based) */ { /* * Range check input... */ if (!attr || (attr->value_tag != IPP_TAG_INTEGER && attr->value_tag != IPP_TAG_ENUM) || element < 0 || element >= attr->num_values) return (0); /* * Return the value... */ return (attr->values[element].integer); } /* * 'ippGetName()' - Get the attribute name. * * @since CUPS 1.6/macOS 10.8@ */ const char * /* O - Attribute name or @code NULL@ for separators */ ippGetName(ipp_attribute_t *attr) /* I - IPP attribute */ { /* * Range check input... */ if (!attr) return (NULL); /* * Return the name... */ return (attr->name); } /* * 'ippGetOctetString()' - Get an octetString value from an IPP attribute. * * The @code element@ parameter specifies which value to get from 0 to * @code ippGetCount(attr)@ - 1. * * @since CUPS 1.7/macOS 10.9@ */ void * /* O - Pointer to octetString data */ ippGetOctetString( ipp_attribute_t *attr, /* I - IPP attribute */ int element, /* I - Value number (0-based) */ int *datalen) /* O - Length of octetString data */ { /* * Range check input... */ if (!attr || attr->value_tag != IPP_TAG_STRING || element < 0 || element >= attr->num_values) { if (datalen) *datalen = 0; return (NULL); } /* * Return the values... */ if (datalen) *datalen = attr->values[element].unknown.length; return (attr->values[element].unknown.data); } /* * 'ippGetOperation()' - Get the operation ID in an IPP message. * * @since CUPS 1.6/macOS 10.8@ */ ipp_op_t /* O - Operation ID or 0 on error */ ippGetOperation(ipp_t *ipp) /* I - IPP request message */ { /* * Range check input... */ if (!ipp) return ((ipp_op_t)0); /* * Return the value... */ return (ipp->request.op.operation_id); } /* * 'ippGetRange()' - Get a rangeOfInteger value from an attribute. * * The @code element@ parameter specifies which value to get from 0 to * @code ippGetCount(attr)@ - 1. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - Lower value of range or 0 */ ippGetRange(ipp_attribute_t *attr, /* I - IPP attribute */ int element, /* I - Value number (0-based) */ int *uppervalue)/* O - Upper value of range */ { /* * Range check input... */ if (!attr || attr->value_tag != IPP_TAG_RANGE || element < 0 || element >= attr->num_values) { if (uppervalue) *uppervalue = 0; return (0); } /* * Return the values... */ if (uppervalue) *uppervalue = attr->values[element].range.upper; return (attr->values[element].range.lower); } /* * 'ippGetRequestId()' - Get the request ID from an IPP message. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - Request ID or 0 on error */ ippGetRequestId(ipp_t *ipp) /* I - IPP message */ { /* * Range check input... */ if (!ipp) return (0); /* * Return the request ID... */ return (ipp->request.any.request_id); } /* * 'ippGetResolution()' - Get a resolution value for an attribute. * * The @code element@ parameter specifies which value to get from 0 to * @code ippGetCount(attr)@ - 1. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - Horizontal/cross feed resolution or 0 */ ippGetResolution( ipp_attribute_t *attr, /* I - IPP attribute */ int element, /* I - Value number (0-based) */ int *yres, /* O - Vertical/feed resolution */ ipp_res_t *units) /* O - Units for resolution */ { /* * Range check input... */ if (!attr || attr->value_tag != IPP_TAG_RESOLUTION || element < 0 || element >= attr->num_values) { if (yres) *yres = 0; if (units) *units = (ipp_res_t)0; return (0); } /* * Return the value... */ if (yres) *yres = attr->values[element].resolution.yres; if (units) *units = attr->values[element].resolution.units; return (attr->values[element].resolution.xres); } /* * 'ippGetState()' - Get the IPP message state. * * @since CUPS 1.6/macOS 10.8@ */ ipp_state_t /* O - IPP message state value */ ippGetState(ipp_t *ipp) /* I - IPP message */ { /* * Range check input... */ if (!ipp) return (IPP_STATE_IDLE); /* * Return the value... */ return (ipp->state); } /* * 'ippGetStatusCode()' - Get the status code from an IPP response or event message. * * @since CUPS 1.6/macOS 10.8@ */ ipp_status_t /* O - Status code in IPP message */ ippGetStatusCode(ipp_t *ipp) /* I - IPP response or event message */ { /* * Range check input... */ if (!ipp) return (IPP_STATUS_ERROR_INTERNAL); /* * Return the value... */ return (ipp->request.status.status_code); } /* * 'ippGetString()' - Get the string and optionally the language code for an attribute. * * The @code element@ parameter specifies which value to get from 0 to * @code ippGetCount(attr)@ - 1. * * @since CUPS 1.6/macOS 10.8@ */ const char * ippGetString(ipp_attribute_t *attr, /* I - IPP attribute */ int element, /* I - Value number (0-based) */ const char **language)/* O - Language code (@code NULL@ for don't care) */ { ipp_tag_t tag; /* Value tag */ /* * Range check input... */ tag = ippGetValueTag(attr); if (!attr || element < 0 || element >= attr->num_values || (tag != IPP_TAG_TEXTLANG && tag != IPP_TAG_NAMELANG && (tag < IPP_TAG_TEXT || tag > IPP_TAG_MIMETYPE))) return (NULL); /* * Return the value... */ if (language) *language = attr->values[element].string.language; return (attr->values[element].string.text); } /* * 'ippGetValueTag()' - Get the value tag for an attribute. * * @since CUPS 1.6/macOS 10.8@ */ ipp_tag_t /* O - Value tag or @code IPP_TAG_ZERO@ on error */ ippGetValueTag(ipp_attribute_t *attr) /* I - IPP attribute */ { /* * Range check input... */ if (!attr) return (IPP_TAG_ZERO); /* * Return the value... */ return (attr->value_tag & IPP_TAG_CUPS_MASK); } /* * 'ippGetVersion()' - Get the major and minor version number from an IPP message. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - Major version number or 0 on error */ ippGetVersion(ipp_t *ipp, /* I - IPP message */ int *minor) /* O - Minor version number or @code NULL@ for don't care */ { /* * Range check input... */ if (!ipp) { if (minor) *minor = 0; return (0); } /* * Return the value... */ if (minor) *minor = ipp->request.any.version[1]; return (ipp->request.any.version[0]); } /* * 'ippLength()' - Compute the length of an IPP message. */ size_t /* O - Size of IPP message */ ippLength(ipp_t *ipp) /* I - IPP message */ { return (ipp_length(ipp, 0)); } /* * 'ippNextAttribute()' - Return the next attribute in the message. * * @since CUPS 1.6/macOS 10.8@ */ ipp_attribute_t * /* O - Next attribute or @code NULL@ if none */ ippNextAttribute(ipp_t *ipp) /* I - IPP message */ { /* * Range check input... */ if (!ipp || !ipp->current) return (NULL); /* * Return the next attribute... */ return (ipp->current = ipp->current->next); } /* * 'ippNew()' - Allocate a new IPP message. */ ipp_t * /* O - New IPP message */ ippNew(void) { ipp_t *temp; /* New IPP message */ _cups_globals_t *cg = _cupsGlobals(); /* Global data */ DEBUG_puts("ippNew()"); if ((temp = (ipp_t *)calloc(1, sizeof(ipp_t))) != NULL) { /* * Set default version - usually 2.0... */ DEBUG_printf(("4debug_alloc: %p IPP message", (void *)temp)); if (cg->server_version == 0) _cupsSetDefaults(); temp->request.any.version[0] = (ipp_uchar_t)(cg->server_version / 10); temp->request.any.version[1] = (ipp_uchar_t)(cg->server_version % 10); temp->use = 1; } DEBUG_printf(("1ippNew: Returning %p", (void *)temp)); return (temp); } /* * 'ippNewRequest()' - Allocate a new IPP request message. * * The new request message is initialized with the "attributes-charset" and * "attributes-natural-language" attributes added. The * "attributes-natural-language" value is derived from the current locale. * * @since CUPS 1.2/macOS 10.5@ */ ipp_t * /* O - IPP request message */ ippNewRequest(ipp_op_t op) /* I - Operation code */ { ipp_t *request; /* IPP request message */ cups_lang_t *language; /* Current language localization */ static int request_id = 0; /* Current request ID */ static _cups_mutex_t request_mutex = _CUPS_MUTEX_INITIALIZER; /* Mutex for request ID */ DEBUG_printf(("ippNewRequest(op=%02x(%s))", op, ippOpString(op))); /* * Create a new IPP message... */ if ((request = ippNew()) == NULL) return (NULL); /* * Set the operation and request ID... */ _cupsMutexLock(&request_mutex); request->request.op.operation_id = op; request->request.op.request_id = ++request_id; _cupsMutexUnlock(&request_mutex); /* * Use UTF-8 as the character set... */ ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET, "attributes-charset", NULL, "utf-8"); /* * Get the language from the current locale... */ language = cupsLangDefault(); ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE, "attributes-natural-language", NULL, language->language); /* * Return the new request... */ return (request); } /* * 'ippNewResponse()' - Allocate a new IPP response message. * * The new response message is initialized with the same "version-number", * "request-id", "attributes-charset", and "attributes-natural-language" as the * provided request message. If the "attributes-charset" or * "attributes-natural-language" attributes are missing from the request, * 'utf-8' and a value derived from the current locale are substituted, * respectively. * * @since CUPS 1.7/macOS 10.9@ */ ipp_t * /* O - IPP response message */ ippNewResponse(ipp_t *request) /* I - IPP request message */ { ipp_t *response; /* IPP response message */ ipp_attribute_t *attr; /* Current attribute */ /* * Range check input... */ if (!request) return (NULL); /* * Create a new IPP message... */ if ((response = ippNew()) == NULL) return (NULL); /* * Copy the request values over to the response... */ response->request.status.version[0] = request->request.op.version[0]; response->request.status.version[1] = request->request.op.version[1]; response->request.status.request_id = request->request.op.request_id; /* * The first attribute MUST be attributes-charset... */ attr = request->attrs; if (attr && attr->name && !strcmp(attr->name, "attributes-charset") && attr->group_tag == IPP_TAG_OPERATION && attr->value_tag == IPP_TAG_CHARSET && attr->num_values == 1) { /* * Copy charset from request... */ ippAddString(response, IPP_TAG_OPERATION, IPP_TAG_CHARSET, "attributes-charset", NULL, attr->values[0].string.text); } else { /* * Use "utf-8" as the default... */ ippAddString(response, IPP_TAG_OPERATION, IPP_TAG_CHARSET, "attributes-charset", NULL, "utf-8"); } /* * Then attributes-natural-language... */ if (attr) attr = attr->next; if (attr && attr->name && !strcmp(attr->name, "attributes-natural-language") && attr->group_tag == IPP_TAG_OPERATION && attr->value_tag == IPP_TAG_LANGUAGE && attr->num_values == 1) { /* * Copy language from request... */ ippAddString(response, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE, "attributes-natural-language", NULL, attr->values[0].string.text); } else { /* * Use the language from the current locale... */ cups_lang_t *language = cupsLangDefault(); /* Current locale */ ippAddString(response, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE, "attributes-natural-language", NULL, language->language); } return (response); } /* * 'ippRead()' - Read data for an IPP message from a HTTP connection. */ ipp_state_t /* O - Current state */ ippRead(http_t *http, /* I - HTTP connection */ ipp_t *ipp) /* I - IPP data */ { DEBUG_printf(("ippRead(http=%p, ipp=%p), data_remaining=" CUPS_LLFMT, (void *)http, (void *)ipp, CUPS_LLCAST (http ? http->data_remaining : -1))); if (!http) return (IPP_STATE_ERROR); DEBUG_printf(("2ippRead: http->state=%d, http->used=%d", http->state, http->used)); return (ippReadIO(http, (ipp_iocb_t)ipp_read_http, http->blocking, NULL, ipp)); } /* * 'ippReadFile()' - Read data for an IPP message from a file. * * @since CUPS 1.1.19/macOS 10.3@ */ ipp_state_t /* O - Current state */ ippReadFile(int fd, /* I - HTTP data */ ipp_t *ipp) /* I - IPP data */ { DEBUG_printf(("ippReadFile(fd=%d, ipp=%p)", fd, (void *)ipp)); return (ippReadIO(&fd, (ipp_iocb_t)ipp_read_file, 1, NULL, ipp)); } /* * 'ippReadIO()' - Read data for an IPP message. * * @since CUPS 1.2/macOS 10.5@ */ ipp_state_t /* O - Current state */ ippReadIO(void *src, /* I - Data source */ ipp_iocb_t cb, /* I - Read callback function */ int blocking, /* I - Use blocking IO? */ ipp_t *parent, /* I - Parent request, if any */ ipp_t *ipp) /* I - IPP data */ { int n; /* Length of data */ unsigned char *buffer, /* Data buffer */ string[IPP_MAX_TEXT], /* Small string buffer */ *bufptr; /* Pointer into buffer */ ipp_attribute_t *attr; /* Current attribute */ ipp_tag_t tag; /* Current tag */ ipp_tag_t value_tag; /* Current value tag */ _ipp_value_t *value; /* Current value */ DEBUG_printf(("ippReadIO(src=%p, cb=%p, blocking=%d, parent=%p, ipp=%p)", (void *)src, (void *)cb, blocking, (void *)parent, (void *)ipp)); DEBUG_printf(("2ippReadIO: ipp->state=%d", ipp ? ipp->state : IPP_STATE_ERROR)); if (!src || !ipp) return (IPP_STATE_ERROR); if ((buffer = (unsigned char *)_cupsBufferGet(IPP_BUF_SIZE)) == NULL) { DEBUG_puts("1ippReadIO: Unable to get read buffer."); return (IPP_STATE_ERROR); } switch (ipp->state) { case IPP_STATE_IDLE : ipp->state ++; /* Avoid common problem... */ case IPP_STATE_HEADER : if (parent == NULL) { /* * Get the request header... */ if ((*cb)(src, buffer, 8) < 8) { DEBUG_puts("1ippReadIO: Unable to read header."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } /* * Then copy the request header over... */ ipp->request.any.version[0] = buffer[0]; ipp->request.any.version[1] = buffer[1]; ipp->request.any.op_status = (buffer[2] << 8) | buffer[3]; ipp->request.any.request_id = (((((buffer[4] << 8) | buffer[5]) << 8) | buffer[6]) << 8) | buffer[7]; DEBUG_printf(("2ippReadIO: version=%d.%d", buffer[0], buffer[1])); DEBUG_printf(("2ippReadIO: op_status=%04x", ipp->request.any.op_status)); DEBUG_printf(("2ippReadIO: request_id=%d", ipp->request.any.request_id)); } ipp->state = IPP_STATE_ATTRIBUTE; ipp->current = NULL; ipp->curtag = IPP_TAG_ZERO; ipp->prev = ipp->last; /* * If blocking is disabled, stop here... */ if (!blocking) break; case IPP_STATE_ATTRIBUTE : for (;;) { if ((*cb)(src, buffer, 1) < 1) { DEBUG_puts("1ippReadIO: Callback returned EOF/error"); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } DEBUG_printf(("2ippReadIO: ipp->current=%p, ipp->prev=%p", (void *)ipp->current, (void *)ipp->prev)); /* * Read this attribute... */ tag = (ipp_tag_t)buffer[0]; if (tag == IPP_TAG_EXTENSION) { /* * Read 32-bit "extension" tag... */ if ((*cb)(src, buffer, 4) < 4) { DEBUG_puts("1ippReadIO: Callback returned EOF/error"); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } tag = (ipp_tag_t)((((((buffer[0] << 8) | buffer[1]) << 8) | buffer[2]) << 8) | buffer[3]); if (tag & IPP_TAG_CUPS_CONST) { /* * Fail if the high bit is set in the tag... */ _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP extension tag larger than 0x7FFFFFFF."), 1); DEBUG_printf(("1ippReadIO: bad tag 0x%x.", tag)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } } if (tag == IPP_TAG_END) { /* * No more attributes left... */ DEBUG_puts("2ippReadIO: IPP_TAG_END."); ipp->state = IPP_STATE_DATA; break; } else if (tag == IPP_TAG_ZERO || (tag == IPP_TAG_OPERATION && ipp->curtag != IPP_TAG_ZERO)) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Invalid group tag."), 1); DEBUG_printf(("1ippReadIO: bad tag 0x%02x.", tag)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } else if (tag < IPP_TAG_UNSUPPORTED_VALUE) { /* * Group tag... Set the current group and continue... */ if (ipp->curtag == tag) ipp->prev = ippAddSeparator(ipp); else if (ipp->current) ipp->prev = ipp->current; ipp->curtag = tag; ipp->current = NULL; DEBUG_printf(("2ippReadIO: group tag=%x(%s), ipp->prev=%p", tag, ippTagString(tag), (void *)ipp->prev)); continue; } DEBUG_printf(("2ippReadIO: value tag=%x(%s)", tag, ippTagString(tag))); /* * Get the name... */ if ((*cb)(src, buffer, 2) < 2) { DEBUG_puts("1ippReadIO: unable to read name length."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } n = (buffer[0] << 8) | buffer[1]; if (n >= IPP_BUF_SIZE) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP name larger than 32767 bytes."), 1); DEBUG_printf(("1ippReadIO: bad name length %d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } DEBUG_printf(("2ippReadIO: name length=%d", n)); if (n && parent) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Invalid named IPP attribute in collection."), 1); DEBUG_puts("1ippReadIO: bad attribute name in collection."); return (IPP_STATE_ERROR); } else if (n == 0 && tag != IPP_TAG_MEMBERNAME && tag != IPP_TAG_END_COLLECTION) { /* * More values for current attribute... */ if (ipp->current == NULL) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP attribute has no name."), 1); DEBUG_puts("1ippReadIO: Attribute without name and no current."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } attr = ipp->current; value_tag = (ipp_tag_t)(attr->value_tag & IPP_TAG_CUPS_MASK); /* * Make sure we aren't adding a new value of a different * type... */ if (value_tag == IPP_TAG_ZERO) { /* * Setting the value of a collection member... */ attr->value_tag = tag; } else if (value_tag == IPP_TAG_TEXTLANG || value_tag == IPP_TAG_NAMELANG || (value_tag >= IPP_TAG_TEXT && value_tag <= IPP_TAG_MIMETYPE)) { /* * String values can sometimes come across in different * forms; accept sets of differing values... */ if (tag != IPP_TAG_TEXTLANG && tag != IPP_TAG_NAMELANG && (tag < IPP_TAG_TEXT || tag > IPP_TAG_MIMETYPE) && tag != IPP_TAG_NOVALUE) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP 1setOf attribute with incompatible value " "tags."), 1); DEBUG_printf(("1ippReadIO: 1setOf value tag %x(%s) != %x(%s)", value_tag, ippTagString(value_tag), tag, ippTagString(tag))); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if (value_tag != tag) { DEBUG_printf(("1ippReadIO: Converting %s attribute from %s to %s.", attr->name, ippTagString(value_tag), ippTagString(tag))); ippSetValueTag(ipp, &attr, tag); } } else if (value_tag == IPP_TAG_INTEGER || value_tag == IPP_TAG_RANGE) { /* * Integer and rangeOfInteger values can sometimes be mixed; accept * sets of differing values... */ if (tag != IPP_TAG_INTEGER && tag != IPP_TAG_RANGE) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP 1setOf attribute with incompatible value " "tags."), 1); DEBUG_printf(("1ippReadIO: 1setOf value tag %x(%s) != %x(%s)", value_tag, ippTagString(value_tag), tag, ippTagString(tag))); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if (value_tag == IPP_TAG_INTEGER && tag == IPP_TAG_RANGE) { /* * Convert integer values to rangeOfInteger values... */ DEBUG_printf(("1ippReadIO: Converting %s attribute to " "rangeOfInteger.", attr->name)); ippSetValueTag(ipp, &attr, IPP_TAG_RANGE); } } else if (value_tag != tag) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP 1setOf attribute with incompatible value " "tags."), 1); DEBUG_printf(("1ippReadIO: value tag %x(%s) != %x(%s)", value_tag, ippTagString(value_tag), tag, ippTagString(tag))); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } /* * Finally, reallocate the attribute array as needed... */ if ((value = ipp_set_value(ipp, &attr, attr->num_values)) == NULL) { _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } } else if (tag == IPP_TAG_MEMBERNAME) { /* * Name must be length 0! */ if (n) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP member name is not empty."), 1); DEBUG_puts("1ippReadIO: member name not empty."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if (ipp->current) ipp->prev = ipp->current; attr = ipp->current = ipp_add_attr(ipp, NULL, ipp->curtag, IPP_TAG_ZERO, 1); if (!attr) { _cupsSetHTTPError(HTTP_STATUS_ERROR); DEBUG_puts("1ippReadIO: unable to allocate attribute."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } DEBUG_printf(("2ippReadIO: membername, ipp->current=%p, ipp->prev=%p", (void *)ipp->current, (void *)ipp->prev)); value = attr->values; } else if (tag != IPP_TAG_END_COLLECTION) { /* * New attribute; read the name and add it... */ if ((*cb)(src, buffer, (size_t)n) < n) { DEBUG_puts("1ippReadIO: unable to read name."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } buffer[n] = '\0'; if (ipp->current) ipp->prev = ipp->current; if ((attr = ipp->current = ipp_add_attr(ipp, (char *)buffer, ipp->curtag, tag, 1)) == NULL) { _cupsSetHTTPError(HTTP_STATUS_ERROR); DEBUG_puts("1ippReadIO: unable to allocate attribute."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } DEBUG_printf(("2ippReadIO: name=\"%s\", ipp->current=%p, ipp->prev=%p", buffer, (void *)ipp->current, (void *)ipp->prev)); value = attr->values; } else { attr = NULL; value = NULL; } if ((*cb)(src, buffer, 2) < 2) { DEBUG_puts("1ippReadIO: unable to read value length."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } n = (buffer[0] << 8) | buffer[1]; DEBUG_printf(("2ippReadIO: value length=%d", n)); if (n >= IPP_BUF_SIZE) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP value larger than 32767 bytes."), 1); DEBUG_printf(("1ippReadIO: bad value length %d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } switch (tag) { case IPP_TAG_INTEGER : case IPP_TAG_ENUM : if (n != 4) { if (tag == IPP_TAG_INTEGER) _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP integer value not 4 bytes."), 1); else _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP enum value not 4 bytes."), 1); DEBUG_printf(("1ippReadIO: bad integer value length %d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if ((*cb)(src, buffer, 4) < 4) { DEBUG_puts("1ippReadIO: Unable to read integer value."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } n = (((((buffer[0] << 8) | buffer[1]) << 8) | buffer[2]) << 8) | buffer[3]; if (attr->value_tag == IPP_TAG_RANGE) value->range.lower = value->range.upper = n; else value->integer = n; break; case IPP_TAG_BOOLEAN : if (n != 1) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP boolean value not 1 byte."), 1); DEBUG_printf(("1ippReadIO: bad boolean value length %d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if ((*cb)(src, buffer, 1) < 1) { DEBUG_puts("1ippReadIO: Unable to read boolean value."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } value->boolean = (char)buffer[0]; break; case IPP_TAG_UNSUPPORTED_VALUE : case IPP_TAG_DEFAULT : case IPP_TAG_UNKNOWN : case IPP_TAG_NOVALUE : case IPP_TAG_NOTSETTABLE : case IPP_TAG_DELETEATTR : case IPP_TAG_ADMINDEFINE : /* * These value types are not supposed to have values, however * some vendors (Brother) do not implement IPP correctly and so * we need to map non-empty values to text... */ if (attr->value_tag == tag) { if (n == 0) break; attr->value_tag = IPP_TAG_TEXT; } case IPP_TAG_TEXT : case IPP_TAG_NAME : case IPP_TAG_RESERVED_STRING : case IPP_TAG_KEYWORD : case IPP_TAG_URI : case IPP_TAG_URISCHEME : case IPP_TAG_CHARSET : case IPP_TAG_LANGUAGE : case IPP_TAG_MIMETYPE : if (n > 0) { if ((*cb)(src, buffer, (size_t)n) < n) { DEBUG_puts("1ippReadIO: unable to read string value."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } } buffer[n] = '\0'; value->string.text = _cupsStrAlloc((char *)buffer); DEBUG_printf(("2ippReadIO: value=\"%s\"", value->string.text)); break; case IPP_TAG_DATE : if (n != 11) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP date value not 11 bytes."), 1); DEBUG_printf(("1ippReadIO: bad date value length %d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if ((*cb)(src, value->date, 11) < 11) { DEBUG_puts("1ippReadIO: Unable to read date value."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } break; case IPP_TAG_RESOLUTION : if (n != 9) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP resolution value not 9 bytes."), 1); DEBUG_printf(("1ippReadIO: bad resolution value length %d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if ((*cb)(src, buffer, 9) < 9) { DEBUG_puts("1ippReadIO: Unable to read resolution value."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } value->resolution.xres = (((((buffer[0] << 8) | buffer[1]) << 8) | buffer[2]) << 8) | buffer[3]; value->resolution.yres = (((((buffer[4] << 8) | buffer[5]) << 8) | buffer[6]) << 8) | buffer[7]; value->resolution.units = (ipp_res_t)buffer[8]; break; case IPP_TAG_RANGE : if (n != 8) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP rangeOfInteger value not 8 bytes."), 1); DEBUG_printf(("1ippReadIO: bad rangeOfInteger value length " "%d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if ((*cb)(src, buffer, 8) < 8) { DEBUG_puts("1ippReadIO: Unable to read range value."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } value->range.lower = (((((buffer[0] << 8) | buffer[1]) << 8) | buffer[2]) << 8) | buffer[3]; value->range.upper = (((((buffer[4] << 8) | buffer[5]) << 8) | buffer[6]) << 8) | buffer[7]; break; case IPP_TAG_TEXTLANG : case IPP_TAG_NAMELANG : if (n < 4) { if (tag == IPP_TAG_TEXTLANG) _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP textWithLanguage value less than " "minimum 4 bytes."), 1); else _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP nameWithLanguage value less than " "minimum 4 bytes."), 1); DEBUG_printf(("1ippReadIO: bad stringWithLanguage value " "length %d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if ((*cb)(src, buffer, (size_t)n) < n) { DEBUG_puts("1ippReadIO: Unable to read string w/language " "value."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; /* * text-with-language and name-with-language are composite * values: * * language-length * language * text-length * text */ n = (bufptr[0] << 8) | bufptr[1]; if ((bufptr + 2 + n) >= (buffer + IPP_BUF_SIZE) || n >= (int)sizeof(string)) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP language length overflows value."), 1); DEBUG_printf(("1ippReadIO: bad language value length %d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } else if (n >= IPP_MAX_LANGUAGE) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP language length too large."), 1); DEBUG_printf(("1ippReadIO: bad language value length %d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } memcpy(string, bufptr + 2, (size_t)n); string[n] = '\0'; value->string.language = _cupsStrAlloc((char *)string); bufptr += 2 + n; n = (bufptr[0] << 8) | bufptr[1]; if ((bufptr + 2 + n) >= (buffer + IPP_BUF_SIZE)) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP string length overflows value."), 1); DEBUG_printf(("1ippReadIO: bad string value length %d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr[2 + n] = '\0'; value->string.text = _cupsStrAlloc((char *)bufptr + 2); break; case IPP_TAG_BEGIN_COLLECTION : /* * Oh, boy, here comes a collection value, so read it... */ value->collection = ippNew(); if (n > 0) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP begCollection value not 0 bytes."), 1); DEBUG_puts("1ippReadIO: begCollection tag with value length " "> 0."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if (ippReadIO(src, cb, 1, ipp, value->collection) == IPP_STATE_ERROR) { DEBUG_puts("1ippReadIO: Unable to read collection value."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } break; case IPP_TAG_END_COLLECTION : _cupsBufferRelease((char *)buffer); if (n > 0) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP endCollection value not 0 bytes."), 1); DEBUG_puts("1ippReadIO: endCollection tag with value length " "> 0."); return (IPP_STATE_ERROR); } DEBUG_puts("1ippReadIO: endCollection tag..."); return (ipp->state = IPP_STATE_DATA); case IPP_TAG_MEMBERNAME : /* * The value the name of the member in the collection, which * we need to carry over... */ if (!attr) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP memberName with no attribute."), 1); DEBUG_puts("1ippReadIO: Member name without attribute."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } else if (n == 0) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP memberName value is empty."), 1); DEBUG_puts("1ippReadIO: Empty member name value."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } else if ((*cb)(src, buffer, (size_t)n) < n) { DEBUG_puts("1ippReadIO: Unable to read member name value."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } buffer[n] = '\0'; attr->name = _cupsStrAlloc((char *)buffer); /* * Since collection members are encoded differently than * regular attributes, make sure we don't start with an * empty value... */ attr->num_values --; DEBUG_printf(("2ippReadIO: member name=\"%s\"", attr->name)); break; case IPP_TAG_STRING : default : /* Other unsupported values */ if (tag == IPP_TAG_STRING && n > IPP_MAX_LENGTH) { _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP octetString length too large."), 1); DEBUG_printf(("1ippReadIO: bad octetString value length %d.", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } value->unknown.length = n; if (n > 0) { if ((value->unknown.data = malloc((size_t)n)) == NULL) { _cupsSetHTTPError(HTTP_STATUS_ERROR); DEBUG_puts("1ippReadIO: Unable to allocate value"); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if ((*cb)(src, value->unknown.data, (size_t)n) < n) { DEBUG_puts("1ippReadIO: Unable to read unsupported value."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } } else value->unknown.data = NULL; break; } /* * If blocking is disabled, stop here... */ if (!blocking) break; } break; case IPP_STATE_DATA : break; default : break; /* anti-compiler-warning-code */ } DEBUG_printf(("1ippReadIO: returning ipp->state=%d.", ipp->state)); _cupsBufferRelease((char *)buffer); return (ipp->state); } /* * 'ippSetBoolean()' - Set a boolean value in an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * The @code element@ parameter specifies which value to set from 0 to * @code ippGetCount(attr)@. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetBoolean(ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ int element, /* I - Value number (0-based) */ int boolvalue)/* I - Boolean value */ { _ipp_value_t *value; /* Current value */ /* * Range check input... */ if (!ipp || !attr || !*attr || (*attr)->value_tag != IPP_TAG_BOOLEAN || element < 0 || element > (*attr)->num_values) return (0); /* * Set the value and return... */ if ((value = ipp_set_value(ipp, attr, element)) != NULL) value->boolean = (char)boolvalue; return (value != NULL); } /* * 'ippSetCollection()' - Set a collection value in an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * The @code element@ parameter specifies which value to set from 0 to * @code ippGetCount(attr)@. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetCollection( ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ int element, /* I - Value number (0-based) */ ipp_t *colvalue) /* I - Collection value */ { _ipp_value_t *value; /* Current value */ /* * Range check input... */ if (!ipp || !attr || !*attr || (*attr)->value_tag != IPP_TAG_BEGIN_COLLECTION || element < 0 || element > (*attr)->num_values || !colvalue) return (0); /* * Set the value and return... */ if ((value = ipp_set_value(ipp, attr, element)) != NULL) { if (value->collection) ippDelete(value->collection); value->collection = colvalue; colvalue->use ++; } return (value != NULL); } /* * 'ippSetDate()' - Set a dateTime value in an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * The @code element@ parameter specifies which value to set from 0 to * @code ippGetCount(attr)@. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetDate(ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ int element, /* I - Value number (0-based) */ const ipp_uchar_t *datevalue)/* I - dateTime value */ { _ipp_value_t *value; /* Current value */ /* * Range check input... */ if (!ipp || !attr || !*attr || ((*attr)->value_tag != IPP_TAG_DATE && (*attr)->value_tag != IPP_TAG_NOVALUE && (*attr)->value_tag != IPP_TAG_UNKNOWN) || element < 0 || element > (*attr)->num_values || !datevalue) return (0); /* * Set the value and return... */ if ((value = ipp_set_value(ipp, attr, element)) != NULL) memcpy(value->date, datevalue, sizeof(value->date)); return (value != NULL); } /* * 'ippSetGroupTag()' - Set the group tag of an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * The @code group@ parameter specifies the IPP attribute group tag: none * (@code IPP_TAG_ZERO@, for member attributes), document (@code IPP_TAG_DOCUMENT@), * event notification (@code IPP_TAG_EVENT_NOTIFICATION@), operation * (@code IPP_TAG_OPERATION@), printer (@code IPP_TAG_PRINTER@), subscription * (@code IPP_TAG_SUBSCRIPTION@), or unsupported (@code IPP_TAG_UNSUPPORTED_GROUP@). * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetGroupTag( ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - Attribute */ ipp_tag_t group_tag) /* I - Group tag */ { /* * Range check input - group tag must be 0x01 to 0x0F, per RFC 8011... */ if (!ipp || !attr || !*attr || group_tag < IPP_TAG_ZERO || group_tag == IPP_TAG_END || group_tag >= IPP_TAG_UNSUPPORTED_VALUE) return (0); /* * Set the group tag and return... */ (*attr)->group_tag = group_tag; return (1); } /* * 'ippSetInteger()' - Set an integer or enum value in an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * The @code element@ parameter specifies which value to set from 0 to * @code ippGetCount(attr)@. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetInteger(ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ int element, /* I - Value number (0-based) */ int intvalue) /* I - Integer/enum value */ { _ipp_value_t *value; /* Current value */ /* * Range check input... */ if (!ipp || !attr || !*attr || ((*attr)->value_tag != IPP_TAG_INTEGER && (*attr)->value_tag != IPP_TAG_ENUM && (*attr)->value_tag != IPP_TAG_NOVALUE && (*attr)->value_tag != IPP_TAG_UNKNOWN) || element < 0 || element > (*attr)->num_values) return (0); /* * Set the value and return... */ if ((value = ipp_set_value(ipp, attr, element)) != NULL) { if ((*attr)->value_tag != IPP_TAG_ENUM) (*attr)->value_tag = IPP_TAG_INTEGER; value->integer = intvalue; } return (value != NULL); } /* * 'ippSetName()' - Set the name of an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetName(ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ const char *name) /* I - Attribute name */ { char *temp; /* Temporary name value */ /* * Range check input... */ if (!ipp || !attr || !*attr) return (0); /* * Set the value and return... */ if ((temp = _cupsStrAlloc(name)) != NULL) { if ((*attr)->name) _cupsStrFree((*attr)->name); (*attr)->name = temp; } return (temp != NULL); } /* * 'ippSetOctetString()' - Set an octetString value in an IPP attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * The @code element@ parameter specifies which value to set from 0 to * @code ippGetCount(attr)@. * * @since CUPS 1.7/macOS 10.9@ */ int /* O - 1 on success, 0 on failure */ ippSetOctetString( ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ int element, /* I - Value number (0-based) */ const void *data, /* I - Pointer to octetString data */ int datalen) /* I - Length of octetString data */ { _ipp_value_t *value; /* Current value */ /* * Range check input... */ if (!ipp || !attr || !*attr || ((*attr)->value_tag != IPP_TAG_STRING && (*attr)->value_tag != IPP_TAG_NOVALUE && (*attr)->value_tag != IPP_TAG_UNKNOWN) || element < 0 || element > (*attr)->num_values || datalen < 0 || datalen > IPP_MAX_LENGTH) return (0); /* * Set the value and return... */ if ((value = ipp_set_value(ipp, attr, element)) != NULL) { if ((int)((*attr)->value_tag) & IPP_TAG_CUPS_CONST) { /* * Just copy the pointer... */ value->unknown.data = (void *)data; value->unknown.length = datalen; } else { /* * Copy the data... */ (*attr)->value_tag = IPP_TAG_STRING; if (value->unknown.data) { /* * Free previous data... */ free(value->unknown.data); value->unknown.data = NULL; value->unknown.length = 0; } if (datalen > 0) { void *temp; /* Temporary data pointer */ if ((temp = malloc((size_t)datalen)) != NULL) { memcpy(temp, data, (size_t)datalen); value->unknown.data = temp; value->unknown.length = datalen; } else return (0); } } } return (value != NULL); } /* * 'ippSetOperation()' - Set the operation ID in an IPP request message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetOperation(ipp_t *ipp, /* I - IPP request message */ ipp_op_t op) /* I - Operation ID */ { /* * Range check input... */ if (!ipp) return (0); /* * Set the operation and return... */ ipp->request.op.operation_id = op; return (1); } /* * 'ippSetRange()' - Set a rangeOfInteger value in an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * The @code element@ parameter specifies which value to set from 0 to * @code ippGetCount(attr)@. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetRange(ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ int element, /* I - Value number (0-based) */ int lowervalue, /* I - Lower bound for range */ int uppervalue) /* I - Upper bound for range */ { _ipp_value_t *value; /* Current value */ /* * Range check input... */ if (!ipp || !attr || !*attr || ((*attr)->value_tag != IPP_TAG_RANGE && (*attr)->value_tag != IPP_TAG_NOVALUE && (*attr)->value_tag != IPP_TAG_UNKNOWN) || element < 0 || element > (*attr)->num_values || lowervalue > uppervalue) return (0); /* * Set the value and return... */ if ((value = ipp_set_value(ipp, attr, element)) != NULL) { (*attr)->value_tag = IPP_TAG_RANGE; value->range.lower = lowervalue; value->range.upper = uppervalue; } return (value != NULL); } /* * 'ippSetRequestId()' - Set the request ID in an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code request_id@ parameter must be greater than 0. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetRequestId(ipp_t *ipp, /* I - IPP message */ int request_id) /* I - Request ID */ { /* * Range check input; not checking request_id values since ipptool wants to send * invalid values for conformance testing and a bad request_id does not affect the * encoding of a message... */ if (!ipp) return (0); /* * Set the request ID and return... */ ipp->request.any.request_id = request_id; return (1); } /* * 'ippSetResolution()' - Set a resolution value in an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * The @code element@ parameter specifies which value to set from 0 to * @code ippGetCount(attr)@. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetResolution( ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ int element, /* I - Value number (0-based) */ ipp_res_t unitsvalue, /* I - Resolution units */ int xresvalue, /* I - Horizontal/cross feed resolution */ int yresvalue) /* I - Vertical/feed resolution */ { _ipp_value_t *value; /* Current value */ /* * Range check input... */ if (!ipp || !attr || !*attr || ((*attr)->value_tag != IPP_TAG_RESOLUTION && (*attr)->value_tag != IPP_TAG_NOVALUE && (*attr)->value_tag != IPP_TAG_UNKNOWN) || element < 0 || element > (*attr)->num_values || xresvalue <= 0 || yresvalue <= 0 || unitsvalue < IPP_RES_PER_INCH || unitsvalue > IPP_RES_PER_CM) return (0); /* * Set the value and return... */ if ((value = ipp_set_value(ipp, attr, element)) != NULL) { (*attr)->value_tag = IPP_TAG_RESOLUTION; value->resolution.units = unitsvalue; value->resolution.xres = xresvalue; value->resolution.yres = yresvalue; } return (value != NULL); } /* * 'ippSetState()' - Set the current state of the IPP message. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetState(ipp_t *ipp, /* I - IPP message */ ipp_state_t state) /* I - IPP state value */ { /* * Range check input... */ if (!ipp) return (0); /* * Set the state and return... */ ipp->state = state; ipp->current = NULL; return (1); } /* * 'ippSetStatusCode()' - Set the status code in an IPP response or event message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetStatusCode(ipp_t *ipp, /* I - IPP response or event message */ ipp_status_t status) /* I - Status code */ { /* * Range check input... */ if (!ipp) return (0); /* * Set the status code and return... */ ipp->request.status.status_code = status; return (1); } /* * 'ippSetString()' - Set a string value in an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * The @code element@ parameter specifies which value to set from 0 to * @code ippGetCount(attr)@. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetString(ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ int element, /* I - Value number (0-based) */ const char *strvalue) /* I - String value */ { char *temp; /* Temporary string */ _ipp_value_t *value; /* Current value */ ipp_tag_t value_tag; /* Value tag */ /* * Range check input... */ if (attr && *attr) value_tag = (*attr)->value_tag & IPP_TAG_CUPS_MASK; else value_tag = IPP_TAG_ZERO; if (!ipp || !attr || !*attr || (value_tag < IPP_TAG_TEXT && value_tag != IPP_TAG_TEXTLANG && value_tag != IPP_TAG_NAMELANG && value_tag != IPP_TAG_NOVALUE && value_tag != IPP_TAG_UNKNOWN) || value_tag > IPP_TAG_MIMETYPE || element < 0 || element > (*attr)->num_values || !strvalue) return (0); /* * Set the value and return... */ if ((value = ipp_set_value(ipp, attr, element)) != NULL) { if (value_tag == IPP_TAG_NOVALUE || value_tag == IPP_TAG_UNKNOWN) (*attr)->value_tag = IPP_TAG_KEYWORD; if (element > 0) value->string.language = (*attr)->values[0].string.language; if ((int)((*attr)->value_tag) & IPP_TAG_CUPS_CONST) value->string.text = (char *)strvalue; else if ((temp = _cupsStrAlloc(strvalue)) != NULL) { if (value->string.text) _cupsStrFree(value->string.text); value->string.text = temp; } else return (0); } return (value != NULL); } /* * 'ippSetStringf()' - Set a formatted string value of an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * The @code element@ parameter specifies which value to set from 0 to * @code ippGetCount(attr)@. * * The @code format@ parameter uses formatting characters compatible with the * printf family of standard functions. Additional arguments follow it as * needed. The formatted string is truncated as needed to the maximum length of * the corresponding value type. * * @since CUPS 1.7/macOS 10.9@ */ int /* O - 1 on success, 0 on failure */ ippSetStringf(ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ int element, /* I - Value number (0-based) */ const char *format, /* I - Printf-style format string */ ...) /* I - Additional arguments as needed */ { int ret; /* Return value */ va_list ap; /* Pointer to additional arguments */ va_start(ap, format); ret = ippSetStringfv(ipp, attr, element, format, ap); va_end(ap); return (ret); } /* * 'ippSetStringf()' - Set a formatted string value of an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * The @code element@ parameter specifies which value to set from 0 to * @code ippGetCount(attr)@. * * The @code format@ parameter uses formatting characters compatible with the * printf family of standard functions. Additional arguments follow it as * needed. The formatted string is truncated as needed to the maximum length of * the corresponding value type. * * @since CUPS 1.7/macOS 10.9@ */ int /* O - 1 on success, 0 on failure */ ippSetStringfv(ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ int element, /* I - Value number (0-based) */ const char *format, /* I - Printf-style format string */ va_list ap) /* I - Pointer to additional arguments */ { ipp_tag_t value_tag; /* Value tag */ char buffer[IPP_MAX_TEXT + 4]; /* Formatted text string */ ssize_t bytes, /* Length of formatted value */ max_bytes; /* Maximum number of bytes for value */ /* * Range check input... */ if (attr && *attr) value_tag = (*attr)->value_tag & IPP_TAG_CUPS_MASK; else value_tag = IPP_TAG_ZERO; if (!ipp || !attr || !*attr || (value_tag < IPP_TAG_TEXT && value_tag != IPP_TAG_TEXTLANG && value_tag != IPP_TAG_NAMELANG && value_tag != IPP_TAG_NOVALUE && value_tag != IPP_TAG_UNKNOWN) || value_tag > IPP_TAG_MIMETYPE || !format) return (0); /* * Format the string... */ if (!strcmp(format, "%s")) { /* * Optimize the simple case... */ const char *s = va_arg(ap, char *); if (!s) s = "(null)"; bytes = (ssize_t)strlen(s); strlcpy(buffer, s, sizeof(buffer)); } else { /* * Do a full formatting of the message... */ if ((bytes = vsnprintf(buffer, sizeof(buffer), format, ap)) < 0) return (0); } /* * Limit the length of the string... */ switch (value_tag) { default : case IPP_TAG_TEXT : case IPP_TAG_TEXTLANG : max_bytes = IPP_MAX_TEXT; break; case IPP_TAG_NAME : case IPP_TAG_NAMELANG : max_bytes = IPP_MAX_NAME; break; case IPP_TAG_CHARSET : max_bytes = IPP_MAX_CHARSET; break; case IPP_TAG_NOVALUE : case IPP_TAG_UNKNOWN : case IPP_TAG_KEYWORD : max_bytes = IPP_MAX_KEYWORD; break; case IPP_TAG_LANGUAGE : max_bytes = IPP_MAX_LANGUAGE; break; case IPP_TAG_MIMETYPE : max_bytes = IPP_MAX_MIMETYPE; break; case IPP_TAG_URI : max_bytes = IPP_MAX_URI; break; case IPP_TAG_URISCHEME : max_bytes = IPP_MAX_URISCHEME; break; } if (bytes >= max_bytes) { char *bufmax, /* Buffer at max_bytes */ *bufptr; /* Pointer into buffer */ bufptr = buffer + strlen(buffer) - 1; bufmax = buffer + max_bytes - 1; while (bufptr > bufmax) { if (*bufptr & 0x80) { while ((*bufptr & 0xc0) == 0x80 && bufptr > buffer) bufptr --; } bufptr --; } *bufptr = '\0'; } /* * Set the formatted string and return... */ return (ippSetString(ipp, attr, element, buffer)); } /* * 'ippSetValueTag()' - Set the value tag of an attribute. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The @code attr@ parameter may be modified as a result of setting the value. * * Integer (@code IPP_TAG_INTEGER@) values can be promoted to rangeOfInteger * (@code IPP_TAG_RANGE@) values, the various string tags can be promoted to name * (@code IPP_TAG_NAME@) or nameWithLanguage (@code IPP_TAG_NAMELANG@) values, text * (@code IPP_TAG_TEXT@) values can be promoted to textWithLanguage * (@code IPP_TAG_TEXTLANG@) values, and all values can be demoted to the various * out-of-band value tags such as no-value (@code IPP_TAG_NOVALUE@). All other changes * will be rejected. * * Promoting a string attribute to nameWithLanguage or textWithLanguage adds the language * code in the "attributes-natural-language" attribute or, if not present, the language * code for the current locale. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetValueTag( ipp_t *ipp, /* I - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ ipp_tag_t value_tag) /* I - Value tag */ { int i; /* Looping var */ _ipp_value_t *value; /* Current value */ int integer; /* Current integer value */ cups_lang_t *language; /* Current language */ char code[32]; /* Language code */ ipp_tag_t temp_tag; /* Temporary value tag */ /* * Range check input... */ if (!ipp || !attr || !*attr) return (0); /* * If there is no change, return immediately... */ if (value_tag == (*attr)->value_tag) return (1); /* * Otherwise implement changes as needed... */ temp_tag = (ipp_tag_t)((int)((*attr)->value_tag) & IPP_TAG_CUPS_MASK); switch (value_tag) { case IPP_TAG_UNSUPPORTED_VALUE : case IPP_TAG_DEFAULT : case IPP_TAG_UNKNOWN : case IPP_TAG_NOVALUE : case IPP_TAG_NOTSETTABLE : case IPP_TAG_DELETEATTR : case IPP_TAG_ADMINDEFINE : /* * Free any existing values... */ if ((*attr)->num_values > 0) ipp_free_values(*attr, 0, (*attr)->num_values); /* * Set out-of-band value... */ (*attr)->value_tag = value_tag; break; case IPP_TAG_RANGE : if (temp_tag != IPP_TAG_INTEGER) return (0); for (i = (*attr)->num_values, value = (*attr)->values; i > 0; i --, value ++) { integer = value->integer; value->range.lower = value->range.upper = integer; } (*attr)->value_tag = IPP_TAG_RANGE; break; case IPP_TAG_NAME : if (temp_tag != IPP_TAG_KEYWORD) return (0); (*attr)->value_tag = (ipp_tag_t)(IPP_TAG_NAME | ((*attr)->value_tag & IPP_TAG_CUPS_CONST)); break; case IPP_TAG_NAMELANG : case IPP_TAG_TEXTLANG : if (value_tag == IPP_TAG_NAMELANG && (temp_tag != IPP_TAG_NAME && temp_tag != IPP_TAG_KEYWORD)) return (0); if (value_tag == IPP_TAG_TEXTLANG && temp_tag != IPP_TAG_TEXT) return (0); if (ipp->attrs && ipp->attrs->next && ipp->attrs->next->name && !strcmp(ipp->attrs->next->name, "attributes-natural-language") && (ipp->attrs->next->value_tag & IPP_TAG_CUPS_MASK) == IPP_TAG_LANGUAGE) { /* * Use the language code from the IPP message... */ (*attr)->values[0].string.language = _cupsStrAlloc(ipp->attrs->next->values[0].string.text); } else { /* * Otherwise, use the language code corresponding to the locale... */ language = cupsLangDefault(); (*attr)->values[0].string.language = _cupsStrAlloc(ipp_lang_code(language->language, code, sizeof(code))); } for (i = (*attr)->num_values - 1, value = (*attr)->values + 1; i > 0; i --, value ++) value->string.language = (*attr)->values[0].string.language; if ((int)(*attr)->value_tag & IPP_TAG_CUPS_CONST) { /* * Make copies of all values... */ for (i = (*attr)->num_values, value = (*attr)->values; i > 0; i --, value ++) value->string.text = _cupsStrAlloc(value->string.text); } (*attr)->value_tag = IPP_TAG_NAMELANG; break; case IPP_TAG_KEYWORD : if (temp_tag == IPP_TAG_NAME || temp_tag == IPP_TAG_NAMELANG) break; /* Silently "allow" name -> keyword */ default : return (0); } return (1); } /* * 'ippSetVersion()' - Set the version number in an IPP message. * * The @code ipp@ parameter refers to an IPP message previously created using * the @link ippNew@, @link ippNewRequest@, or @link ippNewResponse@ functions. * * The valid version numbers are currently 1.0, 1.1, 2.0, 2.1, and 2.2. * * @since CUPS 1.6/macOS 10.8@ */ int /* O - 1 on success, 0 on failure */ ippSetVersion(ipp_t *ipp, /* I - IPP message */ int major, /* I - Major version number (major.minor) */ int minor) /* I - Minor version number (major.minor) */ { /* * Range check input... */ if (!ipp || major < 0 || minor < 0) return (0); /* * Set the version number... */ ipp->request.any.version[0] = (ipp_uchar_t)major; ipp->request.any.version[1] = (ipp_uchar_t)minor; return (1); } /* * 'ippTimeToDate()' - Convert from time in seconds to RFC 2579 format. */ const ipp_uchar_t * /* O - RFC-2579 date/time data */ ippTimeToDate(time_t t) /* I - Time in seconds */ { struct tm unixdate; /* UNIX unixdate/time info */ ipp_uchar_t *date = _cupsGlobals()->ipp_date; /* RFC-2579 date/time data */ /* * RFC-2579 date/time format is: * * Byte(s) Description * ------- ----------- * 0-1 Year (0 to 65535) * 2 Month (1 to 12) * 3 Day (1 to 31) * 4 Hours (0 to 23) * 5 Minutes (0 to 59) * 6 Seconds (0 to 60, 60 = "leap second") * 7 Deciseconds (0 to 9) * 8 +/- UTC * 9 UTC hours (0 to 11) * 10 UTC minutes (0 to 59) */ gmtime_r(&t, &unixdate); unixdate.tm_year += 1900; date[0] = (ipp_uchar_t)(unixdate.tm_year >> 8); date[1] = (ipp_uchar_t)(unixdate.tm_year); date[2] = (ipp_uchar_t)(unixdate.tm_mon + 1); date[3] = (ipp_uchar_t)unixdate.tm_mday; date[4] = (ipp_uchar_t)unixdate.tm_hour; date[5] = (ipp_uchar_t)unixdate.tm_min; date[6] = (ipp_uchar_t)unixdate.tm_sec; date[7] = 0; date[8] = '+'; date[9] = 0; date[10] = 0; return (date); } /* * 'ippValidateAttribute()' - Validate the contents of an attribute. * * This function validates the contents of an attribute based on the name and * value tag. 1 is returned if the attribute is valid, 0 otherwise. On * failure, @link cupsLastErrorString@ is set to a human-readable message. * * @since CUPS 1.7/macOS 10.9@ */ int /* O - 1 if valid, 0 otherwise */ ippValidateAttribute( ipp_attribute_t *attr) /* I - Attribute */ { int i; /* Looping var */ char scheme[64], /* Scheme from URI */ userpass[256], /* Username/password from URI */ hostname[256], /* Hostname from URI */ resource[1024]; /* Resource from URI */ int port, /* Port number from URI */ uri_status; /* URI separation status */ const char *ptr; /* Pointer into string */ ipp_attribute_t *colattr; /* Collection attribute */ regex_t re; /* Regular expression */ ipp_uchar_t *date; /* Current date value */ /* * Skip separators. */ if (!attr->name) return (1); /* * Validate the attribute name. */ for (ptr = attr->name; *ptr; ptr ++) if (!isalnum(*ptr & 255) && *ptr != '-' && *ptr != '.' && *ptr != '_') break; if (*ptr || ptr == attr->name) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad attribute name - invalid character (RFC 8011 section 5.1.4)."), attr->name); return (0); } if ((ptr - attr->name) > 255) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad attribute name - bad length %d (RFC 8011 section 5.1.4)."), attr->name, (int)(ptr - attr->name)); return (0); } switch (attr->value_tag) { case IPP_TAG_INTEGER : break; case IPP_TAG_BOOLEAN : for (i = 0; i < attr->num_values; i ++) { if (attr->values[i].boolean != 0 && attr->values[i].boolean != 1) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad boolean value %d (RFC 8011 section 5.1.21)."), attr->name, attr->values[i].boolean); return (0); } } break; case IPP_TAG_ENUM : for (i = 0; i < attr->num_values; i ++) { if (attr->values[i].integer < 1) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad enum value %d - out of range (RFC 8011 section 5.1.5)."), attr->name, attr->values[i].integer); return (0); } } break; case IPP_TAG_STRING : for (i = 0; i < attr->num_values; i ++) { if (attr->values[i].unknown.length > IPP_MAX_OCTETSTRING) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad octetString value - bad length %d (RFC 8011 section 5.1.20)."), attr->name, attr->values[i].unknown.length); return (0); } } break; case IPP_TAG_DATE : for (i = 0; i < attr->num_values; i ++) { date = attr->values[i].date; if (date[2] < 1 || date[2] > 12) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime month %u (RFC 8011 section 5.1.15)."), attr->name, date[2]); return (0); } if (date[3] < 1 || date[3] > 31) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime day %u (RFC 8011 section 5.1.15)."), attr->name, date[3]); return (0); } if (date[4] > 23) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime hours %u (RFC 8011 section 5.1.15)."), attr->name, date[4]); return (0); } if (date[5] > 59) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime minutes %u (RFC 8011 section 5.1.15)."), attr->name, date[5]); return (0); } if (date[6] > 60) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime seconds %u (RFC 8011 section 5.1.15)."), attr->name, date[6]); return (0); } if (date[7] > 9) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime deciseconds %u (RFC 8011 section 5.1.15)."), attr->name, date[7]); return (0); } if (date[8] != '-' && date[8] != '+') { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime UTC sign '%c' (RFC 8011 section 5.1.15)."), attr->name, date[8]); return (0); } if (date[9] > 11) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime UTC hours %u (RFC 8011 section 5.1.15)."), attr->name, date[9]); return (0); } if (date[10] > 59) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad dateTime UTC minutes %u (RFC 8011 section 5.1.15)."), attr->name, date[10]); return (0); } } break; case IPP_TAG_RESOLUTION : for (i = 0; i < attr->num_values; i ++) { if (attr->values[i].resolution.xres <= 0) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad resolution value %dx%d%s - cross feed resolution must be positive (RFC 8011 section 5.1.16)."), attr->name, attr->values[i].resolution.xres, attr->values[i].resolution.yres, attr->values[i].resolution.units == IPP_RES_PER_INCH ? "dpi" : attr->values[i].resolution.units == IPP_RES_PER_CM ? "dpcm" : "unknown"); return (0); } if (attr->values[i].resolution.yres <= 0) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad resolution value %dx%d%s - feed resolution must be positive (RFC 8011 section 5.1.16)."), attr->name, attr->values[i].resolution.xres, attr->values[i].resolution.yres, attr->values[i].resolution.units == IPP_RES_PER_INCH ? "dpi" : attr->values[i].resolution.units == IPP_RES_PER_CM ? "dpcm" : "unknown"); return (0); } if (attr->values[i].resolution.units != IPP_RES_PER_INCH && attr->values[i].resolution.units != IPP_RES_PER_CM) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad resolution value %dx%d%s - bad units value (RFC 8011 section 5.1.16)."), attr->name, attr->values[i].resolution.xres, attr->values[i].resolution.yres, attr->values[i].resolution.units == IPP_RES_PER_INCH ? "dpi" : attr->values[i].resolution.units == IPP_RES_PER_CM ? "dpcm" : "unknown"); return (0); } } break; case IPP_TAG_RANGE : for (i = 0; i < attr->num_values; i ++) { if (attr->values[i].range.lower > attr->values[i].range.upper) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad rangeOfInteger value %d-%d - lower greater than upper (RFC 8011 section 5.1.14)."), attr->name, attr->values[i].range.lower, attr->values[i].range.upper); return (0); } } break; case IPP_TAG_BEGIN_COLLECTION : for (i = 0; i < attr->num_values; i ++) { for (colattr = attr->values[i].collection->attrs; colattr; colattr = colattr->next) { if (!ippValidateAttribute(colattr)) return (0); } } break; case IPP_TAG_TEXT : case IPP_TAG_TEXTLANG : for (i = 0; i < attr->num_values; i ++) { for (ptr = attr->values[i].string.text; *ptr; ptr ++) { if ((*ptr & 0xe0) == 0xc0) { if ((ptr[1] & 0xc0) != 0x80) break; ptr ++; } else if ((*ptr & 0xf0) == 0xe0) { if ((ptr[1] & 0xc0) != 0x80 || (ptr[2] & 0xc0) != 0x80) break; ptr += 2; } else if ((*ptr & 0xf8) == 0xf0) { if ((ptr[1] & 0xc0) != 0x80 || (ptr[2] & 0xc0) != 0x80 || (ptr[3] & 0xc0) != 0x80) break; ptr += 3; } else if (*ptr & 0x80) break; else if ((*ptr < ' ' && *ptr != '\n' && *ptr != '\r' && *ptr != '\t') || *ptr == 0x7f) break; } if (*ptr) { if (*ptr < ' ' || *ptr == 0x7f) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad text value \"%s\" - bad control character (PWG 5100.14 section 8.3)."), attr->name, attr->values[i].string.text); return (0); } else { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad text value \"%s\" - bad UTF-8 sequence (RFC 8011 section 5.1.2)."), attr->name, attr->values[i].string.text); return (0); } } if ((ptr - attr->values[i].string.text) > (IPP_MAX_TEXT - 1)) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad text value \"%s\" - bad length %d (RFC 8011 section 5.1.2)."), attr->name, attr->values[i].string.text, (int)(ptr - attr->values[i].string.text)); return (0); } } break; case IPP_TAG_NAME : case IPP_TAG_NAMELANG : for (i = 0; i < attr->num_values; i ++) { for (ptr = attr->values[i].string.text; *ptr; ptr ++) { if ((*ptr & 0xe0) == 0xc0) { if ((ptr[1] & 0xc0) != 0x80) break; ptr ++; } else if ((*ptr & 0xf0) == 0xe0) { if ((ptr[1] & 0xc0) != 0x80 || (ptr[2] & 0xc0) != 0x80) break; ptr += 2; } else if ((*ptr & 0xf8) == 0xf0) { if ((ptr[1] & 0xc0) != 0x80 || (ptr[2] & 0xc0) != 0x80 || (ptr[3] & 0xc0) != 0x80) break; ptr += 3; } else if (*ptr & 0x80) break; else if (*ptr < ' ' || *ptr == 0x7f) break; } if (*ptr) { if (*ptr < ' ' || *ptr == 0x7f) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad name value \"%s\" - bad control character (PWG 5100.14 section 8.1)."), attr->name, attr->values[i].string.text); return (0); } else { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad name value \"%s\" - bad UTF-8 sequence (RFC 8011 section 5.1.3)."), attr->name, attr->values[i].string.text); return (0); } } if ((ptr - attr->values[i].string.text) > (IPP_MAX_NAME - 1)) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad name value \"%s\" - bad length %d (RFC 8011 section 5.1.3)."), attr->name, attr->values[i].string.text, (int)(ptr - attr->values[i].string.text)); return (0); } } break; case IPP_TAG_KEYWORD : for (i = 0; i < attr->num_values; i ++) { for (ptr = attr->values[i].string.text; *ptr; ptr ++) { if (!isalnum(*ptr & 255) && *ptr != '-' && *ptr != '.' && *ptr != '_') break; } if (*ptr || ptr == attr->values[i].string.text) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad keyword value \"%s\" - invalid character (RFC 8011 section 5.1.4)."), attr->name, attr->values[i].string.text); return (0); } if ((ptr - attr->values[i].string.text) > (IPP_MAX_KEYWORD - 1)) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad keyword value \"%s\" - bad length %d (RFC 8011 section 5.1.4)."), attr->name, attr->values[i].string.text, (int)(ptr - attr->values[i].string.text)); return (0); } } break; case IPP_TAG_URI : for (i = 0; i < attr->num_values; i ++) { uri_status = httpSeparateURI(HTTP_URI_CODING_ALL, attr->values[i].string.text, scheme, sizeof(scheme), userpass, sizeof(userpass), hostname, sizeof(hostname), &port, resource, sizeof(resource)); if (uri_status < HTTP_URI_STATUS_OK) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad URI value \"%s\" - %s (RFC 8011 section 5.1.6)."), attr->name, attr->values[i].string.text, httpURIStatusString(uri_status)); return (0); } if (strlen(attr->values[i].string.text) > (IPP_MAX_URI - 1)) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad URI value \"%s\" - bad length %d (RFC 8011 section 5.1.6)."), attr->name, attr->values[i].string.text, (int)strlen(attr->values[i].string.text)); } } break; case IPP_TAG_URISCHEME : for (i = 0; i < attr->num_values; i ++) { ptr = attr->values[i].string.text; if (islower(*ptr & 255)) { for (ptr ++; *ptr; ptr ++) { if (!islower(*ptr & 255) && !isdigit(*ptr & 255) && *ptr != '+' && *ptr != '-' && *ptr != '.') break; } } if (*ptr || ptr == attr->values[i].string.text) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad uriScheme value \"%s\" - bad characters (RFC 8011 section 5.1.7)."), attr->name, attr->values[i].string.text); return (0); } if ((ptr - attr->values[i].string.text) > (IPP_MAX_URISCHEME - 1)) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad uriScheme value \"%s\" - bad length %d (RFC 8011 section 5.1.7)."), attr->name, attr->values[i].string.text, (int)(ptr - attr->values[i].string.text)); return (0); } } break; case IPP_TAG_CHARSET : for (i = 0; i < attr->num_values; i ++) { for (ptr = attr->values[i].string.text; *ptr; ptr ++) { if (!isprint(*ptr & 255) || isupper(*ptr & 255) || isspace(*ptr & 255)) break; } if (*ptr || ptr == attr->values[i].string.text) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad charset value \"%s\" - bad characters (RFC 8011 section 5.1.8)."), attr->name, attr->values[i].string.text); return (0); } if ((ptr - attr->values[i].string.text) > (IPP_MAX_CHARSET - 1)) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad charset value \"%s\" - bad length %d (RFC 8011 section 5.1.8)."), attr->name, attr->values[i].string.text, (int)(ptr - attr->values[i].string.text)); return (0); } } break; case IPP_TAG_LANGUAGE : /* * The following regular expression is derived from the ABNF for * language tags in RFC 4646. All I can say is that this is the * easiest way to check the values... */ if ((i = regcomp(&re, "^(" "(([a-z]{2,3}(-[a-z][a-z][a-z]){0,3})|[a-z]{4,8})" /* language */ "(-[a-z][a-z][a-z][a-z]){0,1}" /* script */ "(-([a-z][a-z]|[0-9][0-9][0-9])){0,1}" /* region */ "(-([a-z]{5,8}|[0-9][0-9][0-9]))*" /* variant */ "(-[a-wy-z](-[a-z0-9]{2,8})+)*" /* extension */ "(-x(-[a-z0-9]{1,8})+)*" /* privateuse */ "|" "x(-[a-z0-9]{1,8})+" /* privateuse */ "|" "[a-z]{1,3}(-[a-z][0-9]{2,8}){1,2}" /* grandfathered */ ")$", REG_NOSUB | REG_EXTENDED)) != 0) { char temp[256]; /* Temporary error string */ regerror(i, &re, temp, sizeof(temp)); ipp_set_error(IPP_STATUS_ERROR_INTERNAL, _("Unable to compile naturalLanguage regular expression: %s."), temp); return (0); } for (i = 0; i < attr->num_values; i ++) { if (regexec(&re, attr->values[i].string.text, 0, NULL, 0)) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad naturalLanguage value \"%s\" - bad characters (RFC 8011 section 5.1.9)."), attr->name, attr->values[i].string.text); regfree(&re); return (0); } if (strlen(attr->values[i].string.text) > (IPP_MAX_LANGUAGE - 1)) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad naturalLanguage value \"%s\" - bad length %d (RFC 8011 section 5.1.9)."), attr->name, attr->values[i].string.text, (int)strlen(attr->values[i].string.text)); regfree(&re); return (0); } } regfree(&re); break; case IPP_TAG_MIMETYPE : /* * The following regular expression is derived from the ABNF for * MIME media types in RFC 2045 and 4288. All I can say is that this is * the easiest way to check the values... */ if ((i = regcomp(&re, "^" "[-a-zA-Z0-9!#$&.+^_]{1,127}" /* type-name */ "/" "[-a-zA-Z0-9!#$&.+^_]{1,127}" /* subtype-name */ "(;[-a-zA-Z0-9!#$&.+^_]{1,127}=" /* parameter= */ "([-a-zA-Z0-9!#$&.+^_]{1,127}|\"[^\"]*\"))*" /* value */ "$", REG_NOSUB | REG_EXTENDED)) != 0) { char temp[256]; /* Temporary error string */ regerror(i, &re, temp, sizeof(temp)); ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("Unable to compile mimeMediaType regular expression: %s."), temp); return (0); } for (i = 0; i < attr->num_values; i ++) { if (regexec(&re, attr->values[i].string.text, 0, NULL, 0)) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad mimeMediaType value \"%s\" - bad characters (RFC 8011 section 5.1.10)."), attr->name, attr->values[i].string.text); regfree(&re); return (0); } if (strlen(attr->values[i].string.text) > (IPP_MAX_MIMETYPE - 1)) { ipp_set_error(IPP_STATUS_ERROR_BAD_REQUEST, _("\"%s\": Bad mimeMediaType value \"%s\" - bad length %d (RFC 8011 section 5.1.10)."), attr->name, attr->values[i].string.text, (int)strlen(attr->values[i].string.text)); regfree(&re); return (0); } } regfree(&re); break; default : break; } return (1); } /* * 'ippValidateAttributes()' - Validate all attributes in an IPP message. * * This function validates the contents of the IPP message, including each * attribute. Like @link ippValidateAttribute@, @link cupsLastErrorString@ is * set to a human-readable message on failure. * * @since CUPS 1.7/macOS 10.9@ */ int /* O - 1 if valid, 0 otherwise */ ippValidateAttributes(ipp_t *ipp) /* I - IPP message */ { ipp_attribute_t *attr; /* Current attribute */ if (!ipp) return (1); for (attr = ipp->attrs; attr; attr = attr->next) if (!ippValidateAttribute(attr)) return (0); return (1); } /* * 'ippWrite()' - Write data for an IPP message to a HTTP connection. */ ipp_state_t /* O - Current state */ ippWrite(http_t *http, /* I - HTTP connection */ ipp_t *ipp) /* I - IPP data */ { DEBUG_printf(("ippWrite(http=%p, ipp=%p)", (void *)http, (void *)ipp)); if (!http) return (IPP_STATE_ERROR); return (ippWriteIO(http, (ipp_iocb_t)httpWrite2, http->blocking, NULL, ipp)); } /* * 'ippWriteFile()' - Write data for an IPP message to a file. * * @since CUPS 1.1.19/macOS 10.3@ */ ipp_state_t /* O - Current state */ ippWriteFile(int fd, /* I - HTTP data */ ipp_t *ipp) /* I - IPP data */ { DEBUG_printf(("ippWriteFile(fd=%d, ipp=%p)", fd, (void *)ipp)); ipp->state = IPP_STATE_IDLE; return (ippWriteIO(&fd, (ipp_iocb_t)ipp_write_file, 1, NULL, ipp)); } /* * 'ippWriteIO()' - Write data for an IPP message. * * @since CUPS 1.2/macOS 10.5@ */ ipp_state_t /* O - Current state */ ippWriteIO(void *dst, /* I - Destination */ ipp_iocb_t cb, /* I - Write callback function */ int blocking, /* I - Use blocking IO? */ ipp_t *parent, /* I - Parent IPP message */ ipp_t *ipp) /* I - IPP data */ { int i; /* Looping var */ int n; /* Length of data */ unsigned char *buffer, /* Data buffer */ *bufptr; /* Pointer into buffer */ ipp_attribute_t *attr; /* Current attribute */ _ipp_value_t *value; /* Current value */ DEBUG_printf(("ippWriteIO(dst=%p, cb=%p, blocking=%d, parent=%p, ipp=%p)", (void *)dst, (void *)cb, blocking, (void *)parent, (void *)ipp)); if (!dst || !ipp) return (IPP_STATE_ERROR); if ((buffer = (unsigned char *)_cupsBufferGet(IPP_BUF_SIZE)) == NULL) { DEBUG_puts("1ippWriteIO: Unable to get write buffer"); return (IPP_STATE_ERROR); } switch (ipp->state) { case IPP_STATE_IDLE : ipp->state ++; /* Avoid common problem... */ case IPP_STATE_HEADER : if (parent == NULL) { /* * Send the request header: * * Version = 2 bytes * Operation/Status Code = 2 bytes * Request ID = 4 bytes * Total = 8 bytes */ bufptr = buffer; *bufptr++ = ipp->request.any.version[0]; *bufptr++ = ipp->request.any.version[1]; *bufptr++ = (ipp_uchar_t)(ipp->request.any.op_status >> 8); *bufptr++ = (ipp_uchar_t)ipp->request.any.op_status; *bufptr++ = (ipp_uchar_t)(ipp->request.any.request_id >> 24); *bufptr++ = (ipp_uchar_t)(ipp->request.any.request_id >> 16); *bufptr++ = (ipp_uchar_t)(ipp->request.any.request_id >> 8); *bufptr++ = (ipp_uchar_t)ipp->request.any.request_id; DEBUG_printf(("2ippWriteIO: version=%d.%d", buffer[0], buffer[1])); DEBUG_printf(("2ippWriteIO: op_status=%04x", ipp->request.any.op_status)); DEBUG_printf(("2ippWriteIO: request_id=%d", ipp->request.any.request_id)); if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP header..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } } /* * Reset the state engine to point to the first attribute * in the request/response, with no current group. */ ipp->state = IPP_STATE_ATTRIBUTE; ipp->current = ipp->attrs; ipp->curtag = IPP_TAG_ZERO; DEBUG_printf(("1ippWriteIO: ipp->current=%p", (void *)ipp->current)); /* * If blocking is disabled, stop here... */ if (!blocking) break; case IPP_STATE_ATTRIBUTE : while (ipp->current != NULL) { /* * Write this attribute... */ bufptr = buffer; attr = ipp->current; ipp->current = ipp->current->next; if (!parent) { if (ipp->curtag != attr->group_tag) { /* * Send a group tag byte... */ ipp->curtag = attr->group_tag; if (attr->group_tag == IPP_TAG_ZERO) continue; DEBUG_printf(("2ippWriteIO: wrote group tag=%x(%s)", attr->group_tag, ippTagString(attr->group_tag))); *bufptr++ = (ipp_uchar_t)attr->group_tag; } else if (attr->group_tag == IPP_TAG_ZERO) continue; } DEBUG_printf(("1ippWriteIO: %s (%s%s)", attr->name, attr->num_values > 1 ? "1setOf " : "", ippTagString(attr->value_tag))); /* * Write the attribute tag and name. * * The attribute name length does not include the trailing nul * character in the source string. * * Collection values (parent != NULL) are written differently... */ if (parent == NULL) { /* * Get the length of the attribute name, and make sure it won't * overflow the buffer... */ if ((n = (int)strlen(attr->name)) > (IPP_BUF_SIZE - 8)) { DEBUG_printf(("1ippWriteIO: Attribute name too long (%d)", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } /* * Write the value tag, name length, and name string... */ DEBUG_printf(("2ippWriteIO: writing value tag=%x(%s)", attr->value_tag, ippTagString(attr->value_tag))); DEBUG_printf(("2ippWriteIO: writing name=%d,\"%s\"", n, attr->name)); if (attr->value_tag > 0xff) { *bufptr++ = IPP_TAG_EXTENSION; *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 24); *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 16); *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 8); *bufptr++ = (ipp_uchar_t)attr->value_tag; } else *bufptr++ = (ipp_uchar_t)attr->value_tag; *bufptr++ = (ipp_uchar_t)(n >> 8); *bufptr++ = (ipp_uchar_t)n; memcpy(bufptr, attr->name, (size_t)n); bufptr += n; } else { /* * Get the length of the attribute name, and make sure it won't * overflow the buffer... */ if ((n = (int)strlen(attr->name)) > (IPP_BUF_SIZE - 12)) { DEBUG_printf(("1ippWriteIO: Attribute name too long (%d)", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } /* * Write the member name tag, name length, name string, value tag, * and empty name for the collection member attribute... */ DEBUG_printf(("2ippWriteIO: writing value tag=%x(memberName)", IPP_TAG_MEMBERNAME)); DEBUG_printf(("2ippWriteIO: writing name=%d,\"%s\"", n, attr->name)); DEBUG_printf(("2ippWriteIO: writing value tag=%x(%s)", attr->value_tag, ippTagString(attr->value_tag))); DEBUG_puts("2ippWriteIO: writing name=0,\"\""); *bufptr++ = IPP_TAG_MEMBERNAME; *bufptr++ = 0; *bufptr++ = 0; *bufptr++ = (ipp_uchar_t)(n >> 8); *bufptr++ = (ipp_uchar_t)n; memcpy(bufptr, attr->name, (size_t)n); bufptr += n; if (attr->value_tag > 0xff) { *bufptr++ = IPP_TAG_EXTENSION; *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 24); *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 16); *bufptr++ = (ipp_uchar_t)(attr->value_tag >> 8); *bufptr++ = (ipp_uchar_t)attr->value_tag; } else *bufptr++ = (ipp_uchar_t)attr->value_tag; *bufptr++ = 0; *bufptr++ = 0; } /* * Now write the attribute value(s)... */ switch (attr->value_tag & ~IPP_TAG_CUPS_CONST) { case IPP_TAG_UNSUPPORTED_VALUE : case IPP_TAG_DEFAULT : case IPP_TAG_UNKNOWN : case IPP_TAG_NOVALUE : case IPP_TAG_NOTSETTABLE : case IPP_TAG_DELETEATTR : case IPP_TAG_ADMINDEFINE : *bufptr++ = 0; *bufptr++ = 0; break; case IPP_TAG_INTEGER : case IPP_TAG_ENUM : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) { if ((IPP_BUF_SIZE - (bufptr - buffer)) < 9) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } if (i) { /* * Arrays and sets are done by sending additional * values with a zero-length name... */ *bufptr++ = (ipp_uchar_t)attr->value_tag; *bufptr++ = 0; *bufptr++ = 0; } /* * Integers and enumerations are both 4-byte signed * (twos-complement) values. * * Put the 2-byte length and 4-byte value into the buffer... */ *bufptr++ = 0; *bufptr++ = 4; *bufptr++ = (ipp_uchar_t)(value->integer >> 24); *bufptr++ = (ipp_uchar_t)(value->integer >> 16); *bufptr++ = (ipp_uchar_t)(value->integer >> 8); *bufptr++ = (ipp_uchar_t)value->integer; } break; case IPP_TAG_BOOLEAN : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) { if ((IPP_BUF_SIZE - (bufptr - buffer)) < 6) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } if (i) { /* * Arrays and sets are done by sending additional * values with a zero-length name... */ *bufptr++ = (ipp_uchar_t)attr->value_tag; *bufptr++ = 0; *bufptr++ = 0; } /* * Boolean values are 1-byte; 0 = false, 1 = true. * * Put the 2-byte length and 1-byte value into the buffer... */ *bufptr++ = 0; *bufptr++ = 1; *bufptr++ = (ipp_uchar_t)value->boolean; } break; case IPP_TAG_TEXT : case IPP_TAG_NAME : case IPP_TAG_KEYWORD : case IPP_TAG_URI : case IPP_TAG_URISCHEME : case IPP_TAG_CHARSET : case IPP_TAG_LANGUAGE : case IPP_TAG_MIMETYPE : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) { if (i) { /* * Arrays and sets are done by sending additional * values with a zero-length name... */ DEBUG_printf(("2ippWriteIO: writing value tag=%x(%s)", attr->value_tag, ippTagString(attr->value_tag))); DEBUG_printf(("2ippWriteIO: writing name=0,\"\"")); if ((IPP_BUF_SIZE - (bufptr - buffer)) < 3) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } *bufptr++ = (ipp_uchar_t)attr->value_tag; *bufptr++ = 0; *bufptr++ = 0; } if (value->string.text != NULL) n = (int)strlen(value->string.text); else n = 0; if (n > (IPP_BUF_SIZE - 2)) { DEBUG_printf(("1ippWriteIO: String too long (%d)", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } DEBUG_printf(("2ippWriteIO: writing string=%d,\"%s\"", n, value->string.text)); if ((int)(IPP_BUF_SIZE - (bufptr - buffer)) < (n + 2)) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } /* * All simple strings consist of the 2-byte length and * character data without the trailing nul normally found * in C strings. Also, strings cannot be longer than IPP_MAX_LENGTH * bytes since the 2-byte length is a signed (twos-complement) * value. * * Put the 2-byte length and string characters in the buffer. */ *bufptr++ = (ipp_uchar_t)(n >> 8); *bufptr++ = (ipp_uchar_t)n; if (n > 0) { memcpy(bufptr, value->string.text, (size_t)n); bufptr += n; } } break; case IPP_TAG_DATE : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) { if ((IPP_BUF_SIZE - (bufptr - buffer)) < 16) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } if (i) { /* * Arrays and sets are done by sending additional * values with a zero-length name... */ *bufptr++ = (ipp_uchar_t)attr->value_tag; *bufptr++ = 0; *bufptr++ = 0; } /* * Date values consist of a 2-byte length and an * 11-byte date/time structure defined by RFC 1903. * * Put the 2-byte length and 11-byte date/time * structure in the buffer. */ *bufptr++ = 0; *bufptr++ = 11; memcpy(bufptr, value->date, 11); bufptr += 11; } break; case IPP_TAG_RESOLUTION : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) { if ((IPP_BUF_SIZE - (bufptr - buffer)) < 14) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } if (i) { /* * Arrays and sets are done by sending additional * values with a zero-length name... */ *bufptr++ = (ipp_uchar_t)attr->value_tag; *bufptr++ = 0; *bufptr++ = 0; } /* * Resolution values consist of a 2-byte length, * 4-byte horizontal resolution value, 4-byte vertical * resolution value, and a 1-byte units value. * * Put the 2-byte length and resolution value data * into the buffer. */ *bufptr++ = 0; *bufptr++ = 9; *bufptr++ = (ipp_uchar_t)(value->resolution.xres >> 24); *bufptr++ = (ipp_uchar_t)(value->resolution.xres >> 16); *bufptr++ = (ipp_uchar_t)(value->resolution.xres >> 8); *bufptr++ = (ipp_uchar_t)value->resolution.xres; *bufptr++ = (ipp_uchar_t)(value->resolution.yres >> 24); *bufptr++ = (ipp_uchar_t)(value->resolution.yres >> 16); *bufptr++ = (ipp_uchar_t)(value->resolution.yres >> 8); *bufptr++ = (ipp_uchar_t)value->resolution.yres; *bufptr++ = (ipp_uchar_t)value->resolution.units; } break; case IPP_TAG_RANGE : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) { if ((IPP_BUF_SIZE - (bufptr - buffer)) < 13) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } if (i) { /* * Arrays and sets are done by sending additional * values with a zero-length name... */ *bufptr++ = (ipp_uchar_t)attr->value_tag; *bufptr++ = 0; *bufptr++ = 0; } /* * Range values consist of a 2-byte length, * 4-byte lower value, and 4-byte upper value. * * Put the 2-byte length and range value data * into the buffer. */ *bufptr++ = 0; *bufptr++ = 8; *bufptr++ = (ipp_uchar_t)(value->range.lower >> 24); *bufptr++ = (ipp_uchar_t)(value->range.lower >> 16); *bufptr++ = (ipp_uchar_t)(value->range.lower >> 8); *bufptr++ = (ipp_uchar_t)value->range.lower; *bufptr++ = (ipp_uchar_t)(value->range.upper >> 24); *bufptr++ = (ipp_uchar_t)(value->range.upper >> 16); *bufptr++ = (ipp_uchar_t)(value->range.upper >> 8); *bufptr++ = (ipp_uchar_t)value->range.upper; } break; case IPP_TAG_TEXTLANG : case IPP_TAG_NAMELANG : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) { if (i) { /* * Arrays and sets are done by sending additional * values with a zero-length name... */ if ((IPP_BUF_SIZE - (bufptr - buffer)) < 3) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } *bufptr++ = (ipp_uchar_t)attr->value_tag; *bufptr++ = 0; *bufptr++ = 0; } /* * textWithLanguage and nameWithLanguage values consist * of a 2-byte length for both strings and their * individual lengths, a 2-byte length for the * character string, the character string without the * trailing nul, a 2-byte length for the character * set string, and the character set string without * the trailing nul. */ n = 4; if (value->string.language != NULL) n += (int)strlen(value->string.language); if (value->string.text != NULL) n += (int)strlen(value->string.text); if (n > (IPP_BUF_SIZE - 2)) { DEBUG_printf(("1ippWriteIO: text/nameWithLanguage value " "too long (%d)", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if ((int)(IPP_BUF_SIZE - (bufptr - buffer)) < (n + 2)) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } /* Length of entire value */ *bufptr++ = (ipp_uchar_t)(n >> 8); *bufptr++ = (ipp_uchar_t)n; /* Length of language */ if (value->string.language != NULL) n = (int)strlen(value->string.language); else n = 0; *bufptr++ = (ipp_uchar_t)(n >> 8); *bufptr++ = (ipp_uchar_t)n; /* Language */ if (n > 0) { memcpy(bufptr, value->string.language, (size_t)n); bufptr += n; } /* Length of text */ if (value->string.text != NULL) n = (int)strlen(value->string.text); else n = 0; *bufptr++ = (ipp_uchar_t)(n >> 8); *bufptr++ = (ipp_uchar_t)n; /* Text */ if (n > 0) { memcpy(bufptr, value->string.text, (size_t)n); bufptr += n; } } break; case IPP_TAG_BEGIN_COLLECTION : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) { /* * Collections are written with the begin-collection * tag first with a value of 0 length, followed by the * attributes in the collection, then the end-collection * value... */ if ((IPP_BUF_SIZE - (bufptr - buffer)) < 5) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } if (i) { /* * Arrays and sets are done by sending additional * values with a zero-length name... */ *bufptr++ = (ipp_uchar_t)attr->value_tag; *bufptr++ = 0; *bufptr++ = 0; } /* * Write a data length of 0 and flush the buffer... */ *bufptr++ = 0; *bufptr++ = 0; if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; /* * Then write the collection attribute... */ value->collection->state = IPP_STATE_IDLE; if (ippWriteIO(dst, cb, 1, ipp, value->collection) == IPP_STATE_ERROR) { DEBUG_puts("1ippWriteIO: Unable to write collection value"); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } } break; default : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) { if (i) { /* * Arrays and sets are done by sending additional * values with a zero-length name... */ if ((IPP_BUF_SIZE - (bufptr - buffer)) < 3) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } *bufptr++ = (ipp_uchar_t)attr->value_tag; *bufptr++ = 0; *bufptr++ = 0; } /* * An unknown value might some new value that a * vendor has come up with. It consists of a * 2-byte length and the bytes in the unknown * value buffer. */ n = value->unknown.length; if (n > (IPP_BUF_SIZE - 2)) { DEBUG_printf(("1ippWriteIO: Data length too long (%d)", n)); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } if ((int)(IPP_BUF_SIZE - (bufptr - buffer)) < (n + 2)) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP " "attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } bufptr = buffer; } /* Length of unknown value */ *bufptr++ = (ipp_uchar_t)(n >> 8); *bufptr++ = (ipp_uchar_t)n; /* Value */ if (n > 0) { memcpy(bufptr, value->unknown.data, (size_t)n); bufptr += n; } } break; } /* * Write the data out... */ if (bufptr > buffer) { if ((*cb)(dst, buffer, (size_t)(bufptr - buffer)) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP attribute..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } DEBUG_printf(("2ippWriteIO: wrote %d bytes", (int)(bufptr - buffer))); } /* * If blocking is disabled and we aren't at the end of the attribute * list, stop here... */ if (!blocking && ipp->current) break; } if (ipp->current == NULL) { /* * Done with all of the attributes; add the end-of-attributes * tag or end-collection attribute... */ if (parent == NULL) { buffer[0] = IPP_TAG_END; n = 1; } else { buffer[0] = IPP_TAG_END_COLLECTION; buffer[1] = 0; /* empty name */ buffer[2] = 0; buffer[3] = 0; /* empty value */ buffer[4] = 0; n = 5; } if ((*cb)(dst, buffer, (size_t)n) < 0) { DEBUG_puts("1ippWriteIO: Could not write IPP end-tag..."); _cupsBufferRelease((char *)buffer); return (IPP_STATE_ERROR); } ipp->state = IPP_STATE_DATA; } break; case IPP_STATE_DATA : break; default : break; /* anti-compiler-warning-code */ } _cupsBufferRelease((char *)buffer); return (ipp->state); } /* * 'ipp_add_attr()' - Add a new attribute to the message. */ static ipp_attribute_t * /* O - New attribute */ ipp_add_attr(ipp_t *ipp, /* I - IPP message */ const char *name, /* I - Attribute name or NULL */ ipp_tag_t group_tag, /* I - Group tag or IPP_TAG_ZERO */ ipp_tag_t value_tag, /* I - Value tag or IPP_TAG_ZERO */ int num_values) /* I - Number of values */ { int alloc_values; /* Number of values to allocate */ ipp_attribute_t *attr; /* New attribute */ DEBUG_printf(("4ipp_add_attr(ipp=%p, name=\"%s\", group_tag=0x%x, value_tag=0x%x, num_values=%d)", (void *)ipp, name, group_tag, value_tag, num_values)); /* * Range check input... */ if (!ipp || num_values < 0) return (NULL); /* * Allocate memory, rounding the allocation up as needed... */ if (num_values <= 1) alloc_values = 1; else alloc_values = (num_values + IPP_MAX_VALUES - 1) & ~(IPP_MAX_VALUES - 1); attr = calloc(sizeof(ipp_attribute_t) + (size_t)(alloc_values - 1) * sizeof(_ipp_value_t), 1); if (attr) { /* * Initialize attribute... */ DEBUG_printf(("4debug_alloc: %p %s %s%s (%d values)", (void *)attr, name, num_values > 1 ? "1setOf " : "", ippTagString(value_tag), num_values)); if (name) attr->name = _cupsStrAlloc(name); attr->group_tag = group_tag; attr->value_tag = value_tag; attr->num_values = num_values; /* * Add it to the end of the linked list... */ if (ipp->last) ipp->last->next = attr; else ipp->attrs = attr; ipp->prev = ipp->last; ipp->last = ipp->current = attr; } DEBUG_printf(("5ipp_add_attr: Returning %p", (void *)attr)); return (attr); } /* * 'ipp_free_values()' - Free attribute values. */ static void ipp_free_values(ipp_attribute_t *attr, /* I - Attribute to free values from */ int element,/* I - First value to free */ int count) /* I - Number of values to free */ { int i; /* Looping var */ _ipp_value_t *value; /* Current value */ DEBUG_printf(("4ipp_free_values(attr=%p, element=%d, count=%d)", (void *)attr, element, count)); if (!(attr->value_tag & IPP_TAG_CUPS_CONST)) { /* * Free values as needed... */ switch (attr->value_tag) { case IPP_TAG_TEXTLANG : case IPP_TAG_NAMELANG : if (element == 0 && count == attr->num_values && attr->values[0].string.language) { _cupsStrFree(attr->values[0].string.language); attr->values[0].string.language = NULL; } /* Fall through to other string values */ case IPP_TAG_TEXT : case IPP_TAG_NAME : case IPP_TAG_RESERVED_STRING : case IPP_TAG_KEYWORD : case IPP_TAG_URI : case IPP_TAG_URISCHEME : case IPP_TAG_CHARSET : case IPP_TAG_LANGUAGE : case IPP_TAG_MIMETYPE : for (i = count, value = attr->values + element; i > 0; i --, value ++) { _cupsStrFree(value->string.text); value->string.text = NULL; } break; case IPP_TAG_UNSUPPORTED_VALUE : case IPP_TAG_DEFAULT : case IPP_TAG_UNKNOWN : case IPP_TAG_NOVALUE : case IPP_TAG_NOTSETTABLE : case IPP_TAG_DELETEATTR : case IPP_TAG_ADMINDEFINE : case IPP_TAG_INTEGER : case IPP_TAG_ENUM : case IPP_TAG_BOOLEAN : case IPP_TAG_DATE : case IPP_TAG_RESOLUTION : case IPP_TAG_RANGE : break; case IPP_TAG_BEGIN_COLLECTION : for (i = count, value = attr->values + element; i > 0; i --, value ++) { ippDelete(value->collection); value->collection = NULL; } break; case IPP_TAG_STRING : default : for (i = count, value = attr->values + element; i > 0; i --, value ++) { if (value->unknown.data) { free(value->unknown.data); value->unknown.data = NULL; } } break; } } /* * If we are not freeing values from the end, move the remaining values up... */ if ((element + count) < attr->num_values) memmove(attr->values + element, attr->values + element + count, (size_t)(attr->num_values - count - element) * sizeof(_ipp_value_t)); attr->num_values -= count; } /* * 'ipp_get_code()' - Convert a C locale/charset name into an IPP language/charset code. * * This typically converts strings of the form "ll_CC", "ll-REGION", and "CHARSET_NUMBER" * to "ll-cc", "ll-region", and "charset-number", respectively. */ static char * /* O - Language code string */ ipp_get_code(const char *value, /* I - Locale/charset string */ char *buffer, /* I - String buffer */ size_t bufsize) /* I - Size of string buffer */ { char *bufptr, /* Pointer into buffer */ *bufend; /* End of buffer */ /* * Convert values to lowercase and change _ to - as needed... */ for (bufptr = buffer, bufend = buffer + bufsize - 1; *value && bufptr < bufend; value ++) if (*value == '_') *bufptr++ = '-'; else *bufptr++ = (char)_cups_tolower(*value); *bufptr = '\0'; /* * Return the converted string... */ return (buffer); } /* * 'ipp_lang_code()' - Convert a C locale name into an IPP language code. * * This typically converts strings of the form "ll_CC" and "ll-REGION" to "ll-cc" and * "ll-region", respectively. It also converts the "C" (POSIX) locale to "en". */ static char * /* O - Language code string */ ipp_lang_code(const char *locale, /* I - Locale string */ char *buffer, /* I - String buffer */ size_t bufsize) /* I - Size of string buffer */ { /* * Map POSIX ("C") locale to generic English, otherwise convert the locale string as-is. */ if (!_cups_strcasecmp(locale, "c")) { strlcpy(buffer, "en", bufsize); return (buffer); } else return (ipp_get_code(locale, buffer, bufsize)); } /* * 'ipp_length()' - Compute the length of an IPP message or collection value. */ static size_t /* O - Size of IPP message */ ipp_length(ipp_t *ipp, /* I - IPP message or collection */ int collection) /* I - 1 if a collection, 0 otherwise */ { int i; /* Looping var */ size_t bytes; /* Number of bytes */ ipp_attribute_t *attr; /* Current attribute */ ipp_tag_t group; /* Current group */ _ipp_value_t *value; /* Current value */ DEBUG_printf(("3ipp_length(ipp=%p, collection=%d)", (void *)ipp, collection)); if (!ipp) { DEBUG_puts("4ipp_length: Returning 0 bytes"); return (0); } /* * Start with 8 bytes for the IPP message header... */ bytes = collection ? 0 : 8; /* * Then add the lengths of each attribute... */ group = IPP_TAG_ZERO; for (attr = ipp->attrs; attr != NULL; attr = attr->next) { if (attr->group_tag != group && !collection) { group = attr->group_tag; if (group == IPP_TAG_ZERO) continue; bytes ++; /* Group tag */ } if (!attr->name) continue; DEBUG_printf(("5ipp_length: attr->name=\"%s\", attr->num_values=%d, " "bytes=" CUPS_LLFMT, attr->name, attr->num_values, CUPS_LLCAST bytes)); if ((attr->value_tag & ~IPP_TAG_CUPS_CONST) < IPP_TAG_EXTENSION) bytes += (size_t)attr->num_values;/* Value tag for each value */ else bytes += (size_t)(5 * attr->num_values); /* Value tag for each value */ bytes += (size_t)(2 * attr->num_values); /* Name lengths */ bytes += strlen(attr->name); /* Name */ bytes += (size_t)(2 * attr->num_values); /* Value lengths */ if (collection) bytes += 5; /* Add membername overhead */ switch (attr->value_tag & ~IPP_TAG_CUPS_CONST) { case IPP_TAG_UNSUPPORTED_VALUE : case IPP_TAG_DEFAULT : case IPP_TAG_UNKNOWN : case IPP_TAG_NOVALUE : case IPP_TAG_NOTSETTABLE : case IPP_TAG_DELETEATTR : case IPP_TAG_ADMINDEFINE : break; case IPP_TAG_INTEGER : case IPP_TAG_ENUM : bytes += (size_t)(4 * attr->num_values); break; case IPP_TAG_BOOLEAN : bytes += (size_t)attr->num_values; break; case IPP_TAG_TEXT : case IPP_TAG_NAME : case IPP_TAG_KEYWORD : case IPP_TAG_URI : case IPP_TAG_URISCHEME : case IPP_TAG_CHARSET : case IPP_TAG_LANGUAGE : case IPP_TAG_MIMETYPE : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) if (value->string.text) bytes += strlen(value->string.text); break; case IPP_TAG_DATE : bytes += (size_t)(11 * attr->num_values); break; case IPP_TAG_RESOLUTION : bytes += (size_t)(9 * attr->num_values); break; case IPP_TAG_RANGE : bytes += (size_t)(8 * attr->num_values); break; case IPP_TAG_TEXTLANG : case IPP_TAG_NAMELANG : bytes += (size_t)(4 * attr->num_values); /* Charset + text length */ for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) { if (value->string.language) bytes += strlen(value->string.language); if (value->string.text) bytes += strlen(value->string.text); } break; case IPP_TAG_BEGIN_COLLECTION : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) bytes += ipp_length(value->collection, 1); break; default : for (i = 0, value = attr->values; i < attr->num_values; i ++, value ++) bytes += (size_t)value->unknown.length; break; } } /* * Finally, add 1 byte for the "end of attributes" tag or 5 bytes * for the "end of collection" tag and return... */ if (collection) bytes += 5; else bytes ++; DEBUG_printf(("4ipp_length: Returning " CUPS_LLFMT " bytes", CUPS_LLCAST bytes)); return (bytes); } /* * 'ipp_read_http()' - Semi-blocking read on a HTTP connection... */ static ssize_t /* O - Number of bytes read */ ipp_read_http(http_t *http, /* I - Client connection */ ipp_uchar_t *buffer, /* O - Buffer for data */ size_t length) /* I - Total length */ { ssize_t tbytes, /* Total bytes read */ bytes; /* Bytes read this pass */ DEBUG_printf(("7ipp_read_http(http=%p, buffer=%p, length=%d)", (void *)http, (void *)buffer, (int)length)); /* * Loop until all bytes are read... */ for (tbytes = 0, bytes = 0; tbytes < (int)length; tbytes += bytes, buffer += bytes) { DEBUG_printf(("9ipp_read_http: tbytes=" CUPS_LLFMT ", http->state=%d", CUPS_LLCAST tbytes, http->state)); if (http->state == HTTP_STATE_WAITING) break; if (http->used == 0 && !http->blocking) { /* * Wait up to 10 seconds for more data on non-blocking sockets... */ if (!httpWait(http, 10000)) { /* * Signal no data... */ bytes = -1; break; } } else if (http->used == 0 && http->timeout_value > 0) { /* * Wait up to timeout seconds for more data on blocking sockets... */ if (!httpWait(http, (int)(1000 * http->timeout_value))) { /* * Signal no data... */ bytes = -1; break; } } if ((bytes = httpRead2(http, (char *)buffer, length - (size_t)tbytes)) < 0) { #ifdef _WIN32 break; #else if (errno != EAGAIN && errno != EINTR) break; bytes = 0; #endif /* _WIN32 */ } else if (bytes == 0) break; } /* * Return the number of bytes read... */ if (tbytes == 0 && bytes < 0) tbytes = -1; DEBUG_printf(("8ipp_read_http: Returning " CUPS_LLFMT " bytes", CUPS_LLCAST tbytes)); return (tbytes); } /* * 'ipp_read_file()' - Read IPP data from a file. */ static ssize_t /* O - Number of bytes read */ ipp_read_file(int *fd, /* I - File descriptor */ ipp_uchar_t *buffer, /* O - Read buffer */ size_t length) /* I - Number of bytes to read */ { #ifdef _WIN32 return ((ssize_t)read(*fd, buffer, (unsigned)length)); #else return (read(*fd, buffer, length)); #endif /* _WIN32 */ } /* * 'ipp_set_error()' - Set a formatted, localized error string. */ static void ipp_set_error(ipp_status_t status, /* I - Status code */ const char *format, /* I - Printf-style error string */ ...) /* I - Additional arguments as needed */ { va_list ap; /* Pointer to additional args */ char buffer[2048]; /* Message buffer */ cups_lang_t *lang = cupsLangDefault(); /* Current language */ va_start(ap, format); vsnprintf(buffer, sizeof(buffer), _cupsLangString(lang, format), ap); va_end(ap); _cupsSetError(status, buffer, 0); } /* * 'ipp_set_value()' - Get the value element from an attribute, expanding it as * needed. */ static _ipp_value_t * /* O - IPP value element or NULL on error */ ipp_set_value(ipp_t *ipp, /* IO - IPP message */ ipp_attribute_t **attr, /* IO - IPP attribute */ int element) /* I - Value number (0-based) */ { ipp_attribute_t *temp, /* New attribute pointer */ *current, /* Current attribute in list */ *prev; /* Previous attribute in list */ int alloc_values; /* Allocated values */ /* * If we are setting an existing value element, return it... */ temp = *attr; if (temp->num_values <= 1) alloc_values = 1; else alloc_values = (temp->num_values + IPP_MAX_VALUES - 1) & ~(IPP_MAX_VALUES - 1); if (element < alloc_values) { if (element >= temp->num_values) temp->num_values = element + 1; return (temp->values + element); } /* * Otherwise re-allocate the attribute - we allocate in groups of IPP_MAX_VALUE * values when num_values > 1. */ if (alloc_values < IPP_MAX_VALUES) alloc_values = IPP_MAX_VALUES; else alloc_values += IPP_MAX_VALUES; DEBUG_printf(("4ipp_set_value: Reallocating for up to %d values.", alloc_values)); /* * Reallocate memory... */ if ((temp = realloc(temp, sizeof(ipp_attribute_t) + (size_t)(alloc_values - 1) * sizeof(_ipp_value_t))) == NULL) { _cupsSetHTTPError(HTTP_STATUS_ERROR); DEBUG_puts("4ipp_set_value: Unable to resize attribute."); return (NULL); } /* * Zero the new memory... */ memset(temp->values + temp->num_values, 0, (size_t)(alloc_values - temp->num_values) * sizeof(_ipp_value_t)); if (temp != *attr) { /* * Reset pointers in the list... */ #ifndef __clang_analyzer__ DEBUG_printf(("4debug_free: %p %s", (void *)*attr, temp->name)); #endif /* !__clang_analyzer__ */ DEBUG_printf(("4debug_alloc: %p %s %s%s (%d)", (void *)temp, temp->name, temp->num_values > 1 ? "1setOf " : "", ippTagString(temp->value_tag), temp->num_values)); if (ipp->current == *attr && ipp->prev) { /* * Use current "previous" pointer... */ prev = ipp->prev; } else { /* * Find this attribute in the linked list... */ for (prev = NULL, current = ipp->attrs; current && current != *attr; prev = current, current = current->next); if (!current) { /* * This is a serious error! */ *attr = temp; _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("IPP attribute is not a member of the message."), 1); DEBUG_puts("4ipp_set_value: Unable to find attribute in message."); return (NULL); } } if (prev) prev->next = temp; else ipp->attrs = temp; ipp->current = temp; ipp->prev = prev; if (ipp->last == *attr) ipp->last = temp; *attr = temp; } /* * Return the value element... */ if (element >= temp->num_values) temp->num_values = element + 1; return (temp->values + element); } /* * 'ipp_write_file()' - Write IPP data to a file. */ static ssize_t /* O - Number of bytes written */ ipp_write_file(int *fd, /* I - File descriptor */ ipp_uchar_t *buffer, /* I - Data to write */ size_t length) /* I - Number of bytes to write */ { #ifdef _WIN32 return ((ssize_t)write(*fd, buffer, (unsigned)length)); #else return (write(*fd, buffer, length)); #endif /* _WIN32 */ }