1 /***************************************************************************
2  *                                  _   _ ____  _
3  *  Project                     ___| | | |  _ \| |
4  *                             / __| | | | |_) | |
5  *                            | (__| |_| |  _ <| |___
6  *                             \___|\___/|_| \_\_____|
7  *
8  * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
9  *
10  * This software is licensed as described in the file COPYING, which
11  * you should have received as part of this distribution. The terms
12  * are also available at https://curl.haxx.se/docs/copyright.html.
13  *
14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15  * copies of the Software, and permit persons to whom the Software is
16  * furnished to do so, under the terms of the COPYING file.
17  *
18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19  * KIND, either express or implied.
20  *
21  ***************************************************************************/
22 #include "tool_setup.h"
23 
24 #ifndef CURL_DISABLE_LIBCURL_OPTION
25 
26 #define ENABLE_CURLX_PRINTF
27 /* use our own printf() functions */
28 #include "curlx.h"
29 
30 #include "tool_cfgable.h"
31 #include "tool_easysrc.h"
32 #include "tool_setopt.h"
33 #include "tool_convert.h"
34 
35 #include "memdebug.h" /* keep this as LAST include */
36 
37 /* Lookup tables for converting setopt values back to symbols */
38 /* For enums, values may be in any order. */
39 /* For bit masks, put combinations first, then single bits, */
40 /* and finally any "NONE" value. */
41 
42 #define NV(e) {#e, e}
43 #define NV1(e, v) {#e, (v)}
44 #define NVEND {NULL, 0}         /* sentinel to mark end of list */
45 
46 const struct NameValue setopt_nv_CURLPROXY[] = {
47   NV(CURLPROXY_HTTP),
48   NV(CURLPROXY_HTTP_1_0),
49   NV(CURLPROXY_HTTPS),
50   NV(CURLPROXY_SOCKS4),
51   NV(CURLPROXY_SOCKS5),
52   NV(CURLPROXY_SOCKS4A),
53   NV(CURLPROXY_SOCKS5_HOSTNAME),
54   NVEND,
55 };
56 
57 const struct NameValue setopt_nv_CURL_SOCKS_PROXY[] = {
58   NV(CURLPROXY_SOCKS4),
59   NV(CURLPROXY_SOCKS5),
60   NV(CURLPROXY_SOCKS4A),
61   NV(CURLPROXY_SOCKS5_HOSTNAME),
62   NVEND,
63 };
64 
65 const struct NameValueUnsigned setopt_nv_CURLAUTH[] = {
66   NV(CURLAUTH_ANY),             /* combination */
67   NV(CURLAUTH_ANYSAFE),         /* combination */
68   NV(CURLAUTH_BASIC),
69   NV(CURLAUTH_DIGEST),
70   NV(CURLAUTH_GSSNEGOTIATE),
71   NV(CURLAUTH_NTLM),
72   NV(CURLAUTH_DIGEST_IE),
73   NV(CURLAUTH_NTLM_WB),
74   NV(CURLAUTH_ONLY),
75   NV(CURLAUTH_NONE),
76   NVEND,
77 };
78 
79 const struct NameValue setopt_nv_CURL_HTTP_VERSION[] = {
80   NV(CURL_HTTP_VERSION_NONE),
81   NV(CURL_HTTP_VERSION_1_0),
82   NV(CURL_HTTP_VERSION_1_1),
83   NV(CURL_HTTP_VERSION_2_0),
84   NV(CURL_HTTP_VERSION_2TLS),
85   NV(CURL_HTTP_VERSION_3),
86   NVEND,
87 };
88 
89 const struct NameValue setopt_nv_CURL_SSLVERSION[] = {
90   NV(CURL_SSLVERSION_DEFAULT),
91   NV(CURL_SSLVERSION_TLSv1),
92   NV(CURL_SSLVERSION_SSLv2),
93   NV(CURL_SSLVERSION_SSLv3),
94   NV(CURL_SSLVERSION_TLSv1_0),
95   NV(CURL_SSLVERSION_TLSv1_1),
96   NV(CURL_SSLVERSION_TLSv1_2),
97   NV(CURL_SSLVERSION_TLSv1_3),
98   NVEND,
99 };
100 
101 const struct NameValue setopt_nv_CURL_TIMECOND[] = {
102   NV(CURL_TIMECOND_IFMODSINCE),
103   NV(CURL_TIMECOND_IFUNMODSINCE),
104   NV(CURL_TIMECOND_LASTMOD),
105   NV(CURL_TIMECOND_NONE),
106   NVEND,
107 };
108 
109 const struct NameValue setopt_nv_CURLFTPSSL_CCC[] = {
110   NV(CURLFTPSSL_CCC_NONE),
111   NV(CURLFTPSSL_CCC_PASSIVE),
112   NV(CURLFTPSSL_CCC_ACTIVE),
113   NVEND,
114 };
115 
116 const struct NameValue setopt_nv_CURLUSESSL[] = {
117   NV(CURLUSESSL_NONE),
118   NV(CURLUSESSL_TRY),
119   NV(CURLUSESSL_CONTROL),
120   NV(CURLUSESSL_ALL),
121   NVEND,
122 };
123 
124 const struct NameValueUnsigned setopt_nv_CURLSSLOPT[] = {
125   NV(CURLSSLOPT_ALLOW_BEAST),
126   NV(CURLSSLOPT_NO_REVOKE),
127   NV(CURLSSLOPT_NO_PARTIALCHAIN),
128   NV(CURLSSLOPT_REVOKE_BEST_EFFORT),
129   NV(CURLSSLOPT_NATIVE_CA),
130   NVEND,
131 };
132 
133 const struct NameValue setopt_nv_CURL_NETRC[] = {
134   NV(CURL_NETRC_IGNORED),
135   NV(CURL_NETRC_OPTIONAL),
136   NV(CURL_NETRC_REQUIRED),
137   NVEND,
138 };
139 
140 /* These mappings essentially triplicated - see
141  * tool_libinfo.c and tool_paramhlp.c */
142 const struct NameValue setopt_nv_CURLPROTO[] = {
143   NV(CURLPROTO_ALL),            /* combination */
144   NV(CURLPROTO_DICT),
145   NV(CURLPROTO_FILE),
146   NV(CURLPROTO_FTP),
147   NV(CURLPROTO_FTPS),
148   NV(CURLPROTO_GOPHER),
149   NV(CURLPROTO_HTTP),
150   NV(CURLPROTO_HTTPS),
151   NV(CURLPROTO_IMAP),
152   NV(CURLPROTO_IMAPS),
153   NV(CURLPROTO_LDAP),
154   NV(CURLPROTO_LDAPS),
155   NV(CURLPROTO_POP3),
156   NV(CURLPROTO_POP3S),
157   NV(CURLPROTO_RTSP),
158   NV(CURLPROTO_SCP),
159   NV(CURLPROTO_SFTP),
160   NV(CURLPROTO_SMB),
161   NV(CURLPROTO_SMBS),
162   NV(CURLPROTO_SMTP),
163   NV(CURLPROTO_SMTPS),
164   NV(CURLPROTO_TELNET),
165   NV(CURLPROTO_TFTP),
166   NVEND,
167 };
168 
169 /* These options have non-zero default values. */
170 static const struct NameValue setopt_nv_CURLNONZERODEFAULTS[] = {
171   NV1(CURLOPT_SSL_VERIFYPEER, 1),
172   NV1(CURLOPT_SSL_VERIFYHOST, 1),
173   NV1(CURLOPT_SSL_ENABLE_NPN, 1),
174   NV1(CURLOPT_SSL_ENABLE_ALPN, 1),
175   NV1(CURLOPT_TCP_NODELAY, 1),
176   NV1(CURLOPT_PROXY_SSL_VERIFYPEER, 1),
177   NV1(CURLOPT_PROXY_SSL_VERIFYHOST, 1),
178   NV1(CURLOPT_SOCKS5_AUTH, 1),
179   NVEND
180 };
181 
182 /* Format and add code; jump to nomem on malloc error */
183 #define ADD(args) do { \
184   ret = easysrc_add args; \
185   if(ret) \
186     goto nomem; \
187 } while(0)
188 #define ADDF(args) do { \
189   ret = easysrc_addf args; \
190   if(ret) \
191     goto nomem; \
192 } while(0)
193 #define NULL_CHECK(p) do { \
194   if(!p) { \
195     ret = CURLE_OUT_OF_MEMORY; \
196     goto nomem; \
197   } \
198 } while(0)
199 
200 #define DECL0(s) ADD((&easysrc_decl, s))
201 #define DECL1(f,a) ADDF((&easysrc_decl, f,a))
202 
203 #define DATA0(s) ADD((&easysrc_data, s))
204 #define DATA1(f,a) ADDF((&easysrc_data, f,a))
205 #define DATA2(f,a,b) ADDF((&easysrc_data, f,a,b))
206 #define DATA3(f,a,b,c) ADDF((&easysrc_data, f,a,b,c))
207 
208 #define CODE0(s) ADD((&easysrc_code, s))
209 #define CODE1(f,a) ADDF((&easysrc_code, f,a))
210 #define CODE2(f,a,b) ADDF((&easysrc_code, f,a,b))
211 #define CODE3(f,a,b,c) ADDF((&easysrc_code, f,a,b,c))
212 
213 #define CLEAN0(s) ADD((&easysrc_clean, s))
214 #define CLEAN1(f,a) ADDF((&easysrc_clean, f,a))
215 
216 #define REM0(s) ADD((&easysrc_toohard, s))
217 #define REM1(f,a) ADDF((&easysrc_toohard, f,a))
218 #define REM2(f,a,b) ADDF((&easysrc_toohard, f,a,b))
219 
220 /* Escape string to C string syntax.  Return NULL if out of memory.
221  * Is this correct for those wacky EBCDIC guys? */
222 
223 #define MAX_STRING_LENGTH_OUTPUT 2000
224 #define ZERO_TERMINATED -1
225 
c_escape(const char * str,curl_off_t len)226 static char *c_escape(const char *str, curl_off_t len)
227 {
228   const char *s;
229   unsigned char c;
230   char *escaped, *e;
231   unsigned int cutoff = 0;
232 
233   if(len == ZERO_TERMINATED)
234     len = strlen(str);
235 
236   if(len > MAX_STRING_LENGTH_OUTPUT) {
237     /* cap ridiculously long strings */
238     len = MAX_STRING_LENGTH_OUTPUT;
239     cutoff = 3;
240   }
241 
242   /* Allocate space based on worst-case */
243   escaped = malloc(4 * (size_t)len + 1 + cutoff);
244   if(!escaped)
245     return NULL;
246 
247   e = escaped;
248   for(s = str; len; s++, len--) {
249     c = *s;
250     if(c == '\n') {
251       strcpy(e, "\\n");
252       e += 2;
253     }
254     else if(c == '\r') {
255       strcpy(e, "\\r");
256       e += 2;
257     }
258     else if(c == '\t') {
259       strcpy(e, "\\t");
260       e += 2;
261     }
262     else if(c == '\\') {
263       strcpy(e, "\\\\");
264       e += 2;
265     }
266     else if(c == '"') {
267       strcpy(e, "\\\"");
268       e += 2;
269     }
270     else if(!isprint(c)) {
271       msnprintf(e, 5, "\\x%02x", (unsigned)c);
272       e += 4;
273     }
274     else
275       *e++ = c;
276   }
277   while(cutoff--)
278     *e++ = '.';
279   *e = '\0';
280   return escaped;
281 }
282 
283 /* setopt wrapper for enum types */
tool_setopt_enum(CURL * curl,struct GlobalConfig * config,const char * name,CURLoption tag,const struct NameValue * nvlist,long lval)284 CURLcode tool_setopt_enum(CURL *curl, struct GlobalConfig *config,
285                           const char *name, CURLoption tag,
286                           const struct NameValue *nvlist, long lval)
287 {
288   CURLcode ret = CURLE_OK;
289   bool skip = FALSE;
290 
291   ret = curl_easy_setopt(curl, tag, lval);
292   if(!lval)
293     skip = TRUE;
294 
295   if(config->libcurl && !skip && !ret) {
296     /* we only use this for real if --libcurl was used */
297     const struct NameValue *nv = NULL;
298     for(nv = nvlist; nv->name; nv++) {
299       if(nv->value == lval)
300         break; /* found it */
301     }
302     if(!nv->name) {
303       /* If no definition was found, output an explicit value.
304        * This could happen if new values are defined and used
305        * but the NameValue list is not updated. */
306       CODE2("curl_easy_setopt(hnd, %s, %ldL);", name, lval);
307     }
308     else {
309       CODE2("curl_easy_setopt(hnd, %s, (long)%s);", name, nv->name);
310     }
311   }
312 
313  nomem:
314   return ret;
315 }
316 
317 /* setopt wrapper for flags */
tool_setopt_flags(CURL * curl,struct GlobalConfig * config,const char * name,CURLoption tag,const struct NameValue * nvlist,long lval)318 CURLcode tool_setopt_flags(CURL *curl, struct GlobalConfig *config,
319                            const char *name, CURLoption tag,
320                            const struct NameValue *nvlist, long lval)
321 {
322   CURLcode ret = CURLE_OK;
323   bool skip = FALSE;
324 
325   ret = curl_easy_setopt(curl, tag, lval);
326   if(!lval)
327     skip = TRUE;
328 
329   if(config->libcurl && !skip && !ret) {
330     /* we only use this for real if --libcurl was used */
331     char preamble[80];          /* should accommodate any symbol name */
332     long rest = lval;           /* bits not handled yet */
333     const struct NameValue *nv = NULL;
334     msnprintf(preamble, sizeof(preamble),
335               "curl_easy_setopt(hnd, %s, ", name);
336     for(nv = nvlist; nv->name; nv++) {
337       if((nv->value & ~ rest) == 0) {
338         /* all value flags contained in rest */
339         rest &= ~ nv->value;    /* remove bits handled here */
340         CODE3("%s(long)%s%s",
341               preamble, nv->name, rest ? " |" : ");");
342         if(!rest)
343           break;                /* handled them all */
344         /* replace with all spaces for continuation line */
345         msnprintf(preamble, sizeof(preamble), "%*s", strlen(preamble), "");
346       }
347     }
348     /* If any bits have no definition, output an explicit value.
349      * This could happen if new bits are defined and used
350      * but the NameValue list is not updated. */
351     if(rest)
352       CODE2("%s%ldL);", preamble, rest);
353   }
354 
355  nomem:
356   return ret;
357 }
358 
359 /* setopt wrapper for bitmasks */
tool_setopt_bitmask(CURL * curl,struct GlobalConfig * config,const char * name,CURLoption tag,const struct NameValueUnsigned * nvlist,long lval)360 CURLcode tool_setopt_bitmask(CURL *curl, struct GlobalConfig *config,
361                              const char *name, CURLoption tag,
362                              const struct NameValueUnsigned *nvlist,
363                              long lval)
364 {
365   CURLcode ret = CURLE_OK;
366   bool skip = FALSE;
367 
368   ret = curl_easy_setopt(curl, tag, lval);
369   if(!lval)
370     skip = TRUE;
371 
372   if(config->libcurl && !skip && !ret) {
373     /* we only use this for real if --libcurl was used */
374     char preamble[80];
375     unsigned long rest = (unsigned long)lval;
376     const struct NameValueUnsigned *nv = NULL;
377     msnprintf(preamble, sizeof(preamble),
378               "curl_easy_setopt(hnd, %s, ", name);
379     for(nv = nvlist; nv->name; nv++) {
380       if((nv->value & ~ rest) == 0) {
381         /* all value flags contained in rest */
382         rest &= ~ nv->value;    /* remove bits handled here */
383         CODE3("%s(long)%s%s",
384               preamble, nv->name, rest ? " |" : ");");
385         if(!rest)
386           break;                /* handled them all */
387         /* replace with all spaces for continuation line */
388         msnprintf(preamble, sizeof(preamble), "%*s", strlen(preamble), "");
389       }
390     }
391     /* If any bits have no definition, output an explicit value.
392      * This could happen if new bits are defined and used
393      * but the NameValue list is not updated. */
394     if(rest)
395       CODE2("%s%luUL);", preamble, rest);
396   }
397 
398  nomem:
399   return ret;
400 }
401 
402 /* Generate code for a struct curl_slist. */
libcurl_generate_slist(struct curl_slist * slist,int * slistno)403 static CURLcode libcurl_generate_slist(struct curl_slist *slist, int *slistno)
404 {
405   CURLcode ret = CURLE_OK;
406   char *escaped = NULL;
407 
408   /* May need several slist variables, so invent name */
409   *slistno = ++easysrc_slist_count;
410 
411   DECL1("struct curl_slist *slist%d;", *slistno);
412   DATA1("slist%d = NULL;", *slistno);
413   CLEAN1("curl_slist_free_all(slist%d);", *slistno);
414   CLEAN1("slist%d = NULL;", *slistno);
415   for(; slist; slist = slist->next) {
416     Curl_safefree(escaped);
417     escaped = c_escape(slist->data, ZERO_TERMINATED);
418     if(!escaped)
419       return CURLE_OUT_OF_MEMORY;
420     DATA3("slist%d = curl_slist_append(slist%d, \"%s\");",
421                                        *slistno, *slistno, escaped);
422   }
423 
424  nomem:
425   Curl_safefree(escaped);
426   return ret;
427 }
428 
429 static CURLcode libcurl_generate_mime(CURL *curl,
430                                       struct GlobalConfig *config,
431                                       struct tool_mime *toolmime,
432                                       int *mimeno);     /* Forward. */
433 
434 /* Wrapper to generate source code for a mime part. */
libcurl_generate_mime_part(CURL * curl,struct GlobalConfig * config,struct tool_mime * part,int mimeno)435 static CURLcode libcurl_generate_mime_part(CURL *curl,
436                                            struct GlobalConfig *config,
437                                            struct tool_mime *part,
438                                            int mimeno)
439 {
440   CURLcode ret = CURLE_OK;
441   int submimeno = 0;
442   char *escaped = NULL;
443   const char *data = NULL;
444   const char *filename = part->filename;
445 
446   /* Parts are linked in reverse order. */
447   if(part->prev) {
448     ret = libcurl_generate_mime_part(curl, config, part->prev, mimeno);
449     if(ret)
450       return ret;
451   }
452 
453   /* Create the part. */
454   CODE2("part%d = curl_mime_addpart(mime%d);", mimeno, mimeno);
455 
456   switch(part->kind) {
457   case TOOLMIME_PARTS:
458     ret = libcurl_generate_mime(curl, config, part, &submimeno);
459     if(!ret) {
460       CODE2("curl_mime_subparts(part%d, mime%d);", mimeno, submimeno);
461       CODE1("mime%d = NULL;", submimeno);   /* Avoid freeing in CLEAN. */
462     }
463     break;
464 
465   case TOOLMIME_DATA:
466 #ifdef CURL_DOES_CONVERSIONS
467     /* Data will be set in ASCII, thus issue a comment with clear text. */
468     escaped = c_escape(part->data, ZERO_TERMINATED);
469     NULL_CHECK(escaped);
470     CODE1("/* \"%s\" */", escaped);
471 
472     /* Our data is always textual: convert it to ASCII. */
473     {
474       size_t size = strlen(part->data);
475       char *cp = malloc(size + 1);
476 
477       NULL_CHECK(cp);
478       memcpy(cp, part->data, size + 1);
479       ret = convert_to_network(cp, size);
480       data = cp;
481     }
482 #else
483     data = part->data;
484 #endif
485     if(!ret) {
486       Curl_safefree(escaped);
487       escaped = c_escape(data, ZERO_TERMINATED);
488       NULL_CHECK(escaped);
489       CODE2("curl_mime_data(part%d, \"%s\", CURL_ZERO_TERMINATED);",
490                             mimeno, escaped);
491     }
492     break;
493 
494   case TOOLMIME_FILE:
495   case TOOLMIME_FILEDATA:
496     escaped = c_escape(part->data, ZERO_TERMINATED);
497     NULL_CHECK(escaped);
498     CODE2("curl_mime_filedata(part%d, \"%s\");", mimeno, escaped);
499     if(part->kind == TOOLMIME_FILEDATA && !filename) {
500       CODE1("curl_mime_filename(part%d, NULL);", mimeno);
501     }
502     break;
503 
504   case TOOLMIME_STDIN:
505     if(!filename)
506       filename = "-";
507     /* FALLTHROUGH */
508   case TOOLMIME_STDINDATA:
509     /* Can only be reading stdin in the current context. */
510     CODE1("curl_mime_data_cb(part%d, -1, (curl_read_callback) fread, \\",
511           mimeno);
512     CODE0("                  (curl_seek_callback) fseek, NULL, stdin);");
513     break;
514   default:
515     /* Other cases not possible in this context. */
516     break;
517   }
518 
519   if(!ret && part->encoder) {
520     Curl_safefree(escaped);
521     escaped = c_escape(part->encoder, ZERO_TERMINATED);
522     NULL_CHECK(escaped);
523     CODE2("curl_mime_encoder(part%d, \"%s\");", mimeno, escaped);
524   }
525 
526   if(!ret && filename) {
527     Curl_safefree(escaped);
528     escaped = c_escape(filename, ZERO_TERMINATED);
529     NULL_CHECK(escaped);
530     CODE2("curl_mime_filename(part%d, \"%s\");", mimeno, escaped);
531   }
532 
533   if(!ret && part->name) {
534     Curl_safefree(escaped);
535     escaped = c_escape(part->name, ZERO_TERMINATED);
536     NULL_CHECK(escaped);
537     CODE2("curl_mime_name(part%d, \"%s\");", mimeno, escaped);
538   }
539 
540   if(!ret && part->type) {
541     Curl_safefree(escaped);
542     escaped = c_escape(part->type, ZERO_TERMINATED);
543     NULL_CHECK(escaped);
544     CODE2("curl_mime_type(part%d, \"%s\");", mimeno, escaped);
545   }
546 
547   if(!ret && part->headers) {
548     int slistno;
549 
550     ret = libcurl_generate_slist(part->headers, &slistno);
551     if(!ret) {
552       CODE2("curl_mime_headers(part%d, slist%d, 1);", mimeno, slistno);
553       CODE1("slist%d = NULL;", slistno); /* Prevent CLEANing. */
554     }
555   }
556 
557 nomem:
558 #ifdef CURL_DOES_CONVERSIONS
559   if(data)
560     free((char *) data);
561 #endif
562 
563   Curl_safefree(escaped);
564   return ret;
565 }
566 
567 /* Wrapper to generate source code for a mime structure. */
libcurl_generate_mime(CURL * curl,struct GlobalConfig * config,struct tool_mime * toolmime,int * mimeno)568 static CURLcode libcurl_generate_mime(CURL *curl,
569                                       struct GlobalConfig *config,
570                                       struct tool_mime *toolmime,
571                                       int *mimeno)
572 {
573   CURLcode ret = CURLE_OK;
574 
575   /* May need several mime variables, so invent name. */
576   *mimeno = ++easysrc_mime_count;
577   DECL1("curl_mime *mime%d;", *mimeno);
578   DATA1("mime%d = NULL;", *mimeno);
579   CODE1("mime%d = curl_mime_init(hnd);", *mimeno);
580   CLEAN1("curl_mime_free(mime%d);", *mimeno);
581   CLEAN1("mime%d = NULL;", *mimeno);
582 
583   if(toolmime->subparts) {
584     DECL1("curl_mimepart *part%d;", *mimeno);
585     ret = libcurl_generate_mime_part(curl, config,
586                                      toolmime->subparts, *mimeno);
587   }
588 
589 nomem:
590   return ret;
591 }
592 
593 /* setopt wrapper for CURLOPT_MIMEPOST */
tool_setopt_mimepost(CURL * curl,struct GlobalConfig * config,const char * name,CURLoption tag,curl_mime * mimepost)594 CURLcode tool_setopt_mimepost(CURL *curl, struct GlobalConfig *config,
595                               const char *name, CURLoption tag,
596                               curl_mime *mimepost)
597 {
598   CURLcode ret = curl_easy_setopt(curl, tag, mimepost);
599   int mimeno = 0;
600 
601   if(!ret && config->libcurl) {
602     ret = libcurl_generate_mime(curl, config,
603                                 config->current->mimeroot, &mimeno);
604 
605     if(!ret)
606       CODE2("curl_easy_setopt(hnd, %s, mime%d);", name, mimeno);
607   }
608 
609 nomem:
610   return ret;
611 }
612 
613 /* setopt wrapper for curl_slist options */
tool_setopt_slist(CURL * curl,struct GlobalConfig * config,const char * name,CURLoption tag,struct curl_slist * list)614 CURLcode tool_setopt_slist(CURL *curl, struct GlobalConfig *config,
615                            const char *name, CURLoption tag,
616                            struct curl_slist *list)
617 {
618   CURLcode ret = CURLE_OK;
619 
620   ret = curl_easy_setopt(curl, tag, list);
621 
622   if(config->libcurl && list && !ret) {
623     int i;
624 
625     ret = libcurl_generate_slist(list, &i);
626     if(!ret)
627       CODE2("curl_easy_setopt(hnd, %s, slist%d);", name, i);
628   }
629 
630  nomem:
631   return ret;
632 }
633 
634 /* generic setopt wrapper for all other options.
635  * Some type information is encoded in the tag value. */
tool_setopt(CURL * curl,bool str,struct GlobalConfig * global,struct OperationConfig * config,const char * name,CURLoption tag,...)636 CURLcode tool_setopt(CURL *curl, bool str, struct GlobalConfig *global,
637                      struct OperationConfig *config,
638                      const char *name, CURLoption tag, ...)
639 {
640   va_list arg;
641   char buf[256];
642   const char *value = NULL;
643   bool remark = FALSE;
644   bool skip = FALSE;
645   bool escape = FALSE;
646   char *escaped = NULL;
647   CURLcode ret = CURLE_OK;
648 
649   va_start(arg, tag);
650 
651   if(tag < CURLOPTTYPE_OBJECTPOINT) {
652     /* Value is expected to be a long */
653     long lval = va_arg(arg, long);
654     long defval = 0L;
655     const struct NameValue *nv = NULL;
656     for(nv = setopt_nv_CURLNONZERODEFAULTS; nv->name; nv++) {
657       if(!strcmp(name, nv->name)) {
658         defval = nv->value;
659         break; /* found it */
660       }
661     }
662 
663     msnprintf(buf, sizeof(buf), "%ldL", lval);
664     value = buf;
665     ret = curl_easy_setopt(curl, tag, lval);
666     if(lval == defval)
667       skip = TRUE;
668   }
669   else if(tag < CURLOPTTYPE_OFF_T) {
670     /* Value is some sort of object pointer */
671     void *pval = va_arg(arg, void *);
672 
673     /* function pointers are never printable */
674     if(tag >= CURLOPTTYPE_FUNCTIONPOINT) {
675       if(pval) {
676         value = "functionpointer";
677         remark = TRUE;
678       }
679       else
680         skip = TRUE;
681     }
682 
683     else if(pval && str) {
684       value = (char *)pval;
685       escape = TRUE;
686     }
687     else if(pval) {
688       value = "objectpointer";
689       remark = TRUE;
690     }
691     else
692       skip = TRUE;
693 
694     ret = curl_easy_setopt(curl, tag, pval);
695 
696   }
697   else if(tag < CURLOPTTYPE_BLOB) {
698     /* Value is expected to be curl_off_t */
699     curl_off_t oval = va_arg(arg, curl_off_t);
700     msnprintf(buf, sizeof(buf),
701               "(curl_off_t)%" CURL_FORMAT_CURL_OFF_T, oval);
702     value = buf;
703     ret = curl_easy_setopt(curl, tag, oval);
704 
705     if(!oval)
706       skip = TRUE;
707   }
708   else {
709     /* Value is a blob */
710     void *pblob = va_arg(arg, void *);
711 
712     /* blobs are never printable */
713     if(pblob) {
714       value = "blobpointer";
715       remark = TRUE;
716     }
717     else
718       skip = TRUE;
719 
720     ret = curl_easy_setopt(curl, tag, pblob);
721   }
722 
723   va_end(arg);
724 
725   if(global->libcurl && !skip && !ret) {
726     /* we only use this for real if --libcurl was used */
727 
728     if(remark)
729       REM2("%s set to a %s", name, value);
730     else {
731       if(escape) {
732         curl_off_t len = ZERO_TERMINATED;
733         if(tag == CURLOPT_POSTFIELDS)
734           len = config->postfieldsize;
735         escaped = c_escape(value, len);
736         NULL_CHECK(escaped);
737         CODE2("curl_easy_setopt(hnd, %s, \"%s\");", name, escaped);
738       }
739       else
740         CODE2("curl_easy_setopt(hnd, %s, %s);", name, value);
741     }
742   }
743 
744  nomem:
745   Curl_safefree(escaped);
746   return ret;
747 }
748 
749 #else /* CURL_DISABLE_LIBCURL_OPTION */
750 
751 #include "tool_cfgable.h"
752 #include "tool_setopt.h"
753 
754 #endif /* CURL_DISABLE_LIBCURL_OPTION */
755 
756 /*
757  * tool_setopt_skip() allows the curl tool code to avoid setopt options that
758  * are explicitly disabled in the build.
759  */
tool_setopt_skip(CURLoption tag)760 bool tool_setopt_skip(CURLoption tag)
761 {
762 #ifdef CURL_DISABLE_PROXY
763 #define USED_TAG
764   switch(tag) {
765   case CURLOPT_HAPROXYPROTOCOL:
766   case CURLOPT_HTTPPROXYTUNNEL:
767   case CURLOPT_NOPROXY:
768   case CURLOPT_PRE_PROXY:
769   case CURLOPT_PROXY:
770   case CURLOPT_PROXYAUTH:
771   case CURLOPT_PROXY_CAINFO:
772   case CURLOPT_PROXY_CAPATH:
773   case CURLOPT_PROXY_CRLFILE:
774   case CURLOPT_PROXYHEADER:
775   case CURLOPT_PROXY_KEYPASSWD:
776   case CURLOPT_PROXYPASSWORD:
777   case CURLOPT_PROXY_PINNEDPUBLICKEY:
778   case CURLOPT_PROXYPORT:
779   case CURLOPT_PROXY_SERVICE_NAME:
780   case CURLOPT_PROXY_SSLCERT:
781   case CURLOPT_PROXY_SSLCERTTYPE:
782   case CURLOPT_PROXY_SSL_CIPHER_LIST:
783   case CURLOPT_PROXY_SSLKEY:
784   case CURLOPT_PROXY_SSLKEYTYPE:
785   case CURLOPT_PROXY_SSL_OPTIONS:
786   case CURLOPT_PROXY_SSL_VERIFYHOST:
787   case CURLOPT_PROXY_SSL_VERIFYPEER:
788   case CURLOPT_PROXY_SSLVERSION:
789   case CURLOPT_PROXY_TLS13_CIPHERS:
790   case CURLOPT_PROXY_TLSAUTH_PASSWORD:
791   case CURLOPT_PROXY_TLSAUTH_TYPE:
792   case CURLOPT_PROXY_TLSAUTH_USERNAME:
793   case CURLOPT_PROXY_TRANSFER_MODE:
794   case CURLOPT_PROXYTYPE:
795   case CURLOPT_PROXYUSERNAME:
796   case CURLOPT_PROXYUSERPWD:
797     return TRUE;
798   default:
799     break;
800   }
801 #endif
802 #ifdef CURL_DISABLE_FTP
803 #define USED_TAG
804   switch(tag) {
805   case CURLOPT_FTPPORT:
806   case CURLOPT_FTP_ACCOUNT:
807   case CURLOPT_FTP_ALTERNATIVE_TO_USER:
808   case CURLOPT_FTP_FILEMETHOD:
809   case CURLOPT_FTP_SKIP_PASV_IP:
810   case CURLOPT_FTP_USE_EPRT:
811   case CURLOPT_FTP_USE_EPSV:
812   case CURLOPT_FTP_USE_PRET:
813   case CURLOPT_KRBLEVEL:
814     return TRUE;
815   default:
816     break;
817   }
818 #endif
819 #ifdef CURL_DISABLE_RTSP
820 #define USED_TAG
821   switch(tag) {
822   case CURLOPT_INTERLEAVEDATA:
823     return TRUE;
824   default:
825     break;
826   }
827 #endif
828 #if defined(CURL_DISABLE_HTTP) || defined(CURL_DISABLE_COOKIES)
829 #define USED_TAG
830   switch(tag) {
831   case CURLOPT_COOKIE:
832   case CURLOPT_COOKIEFILE:
833   case CURLOPT_COOKIEJAR:
834   case CURLOPT_COOKIESESSION:
835     return TRUE;
836   default:
837     break;
838   }
839 #endif
840 #if defined(CURL_DISABLE_TELNET)
841 #define USED_TAG
842   switch(tag) {
843   case CURLOPT_TELNETOPTIONS:
844     return TRUE;
845   default:
846     break;
847   }
848 #endif
849 #ifdef CURL_DISABLE_TFTP
850 #define USED_TAG
851   switch(tag) {
852   case CURLOPT_TFTP_BLKSIZE:
853   case CURLOPT_TFTP_NO_OPTIONS:
854     return TRUE;
855   default:
856     break;
857   }
858 #endif
859 #ifdef CURL_DISABLE_NETRC
860 #define USED_TAG
861   switch(tag) {
862   case CURLOPT_NETRC:
863   case CURLOPT_NETRC_FILE:
864     return TRUE;
865   default:
866     break;
867   }
868 #endif
869 
870 #ifndef USED_TAG
871   (void)tag;
872 #endif
873   return FALSE;
874 }
875