1 /* $Id: openbsd-compat.h,v 1.62 2014/09/30 23:43:08 djm Exp $ */
2 
3 /*
4  * Copyright (c) 1999-2003 Damien Miller.  All rights reserved.
5  * Copyright (c) 2003 Ben Lindstrom. All rights reserved.
6  * Copyright (c) 2002 Tim Rice.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #ifndef _OPENBSD_COMPAT_H
30 #define _OPENBSD_COMPAT_H
31 
32 #include "includes.h"
33 
34 #include <sys/types.h>
35 #include <pwd.h>
36 
37 #include <sys/socket.h>
38 
39 /* OpenBSD function replacements */
40 #include "base64.h"
41 #include "sigact.h"
42 #include "glob.h"
43 #include "readpassphrase.h"
44 #include "vis.h"
45 #include "getrrsetbyname.h"
46 #include "sha1.h"
47 #include "sha2.h"
48 #include "rmd160.h"
49 #include "md5.h"
50 #include "blf.h"
51 
52 #ifndef HAVE_BASENAME
53 char *basename(const char *path);
54 #endif
55 
56 #ifndef HAVE_BINDRESVPORT_SA
57 int bindresvport_sa(int sd, struct sockaddr *sa);
58 #endif
59 
60 #ifndef HAVE_CLOSEFROM
61 void closefrom(int);
62 #endif
63 
64 #ifndef HAVE_GETCWD
65 char *getcwd(char *pt, size_t size);
66 #endif
67 
68 #ifndef HAVE_REALLOCARRAY
69 void *reallocarray(void *, size_t, size_t);
70 #endif
71 
72 #if !defined(HAVE_REALPATH) || defined(BROKEN_REALPATH)
73 char *realpath(const char *path, char *resolved);
74 #endif
75 
76 #ifndef HAVE_RRESVPORT_AF
77 int rresvport_af(int *alport, sa_family_t af);
78 #endif
79 
80 #ifndef HAVE_STRLCPY
81 /* #include <sys/types.h> XXX Still needed? */
82 size_t strlcpy(char *dst, const char *src, size_t siz);
83 #endif
84 
85 #ifndef HAVE_STRLCAT
86 /* #include <sys/types.h> XXX Still needed? */
87 size_t strlcat(char *dst, const char *src, size_t siz);
88 #endif
89 
90 #ifndef HAVE_SETENV
91 int setenv(register const char *name, register const char *value, int rewrite);
92 #endif
93 
94 #ifndef HAVE_STRMODE
95 void strmode(int mode, char *p);
96 #endif
97 
98 #ifndef HAVE_STRPTIME
99 #include  <time.h>
100 char *strptime(const char *buf, const char *fmt, struct tm *tm);
101 #endif
102 
103 #if !defined(HAVE_MKDTEMP) || defined(HAVE_STRICT_MKSTEMP)
104 int mkstemps(char *path, int slen);
105 int mkstemp(char *path);
106 char *mkdtemp(char *path);
107 #endif
108 
109 #ifndef HAVE_DAEMON
110 int daemon(int nochdir, int noclose);
111 #endif
112 
113 #ifndef HAVE_DIRNAME
114 char *dirname(const char *path);
115 #endif
116 
117 #ifndef HAVE_FMT_SCALED
118 #define	FMT_SCALED_STRSIZE	7
119 int	fmt_scaled(long long number, char *result);
120 #endif
121 
122 #ifndef HAVE_SCAN_SCALED
123 int	scan_scaled(char *, long long *);
124 #endif
125 
126 #if defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA)
127 char *inet_ntoa(struct in_addr in);
128 #endif
129 
130 #ifndef HAVE_INET_NTOP
131 const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);
132 #endif
133 
134 #ifndef HAVE_INET_ATON
135 int inet_aton(const char *cp, struct in_addr *addr);
136 #endif
137 
138 #ifndef HAVE_STRSEP
139 char *strsep(char **stringp, const char *delim);
140 #endif
141 
142 #ifndef HAVE_SETPROCTITLE
143 void setproctitle(const char *fmt, ...);
144 void compat_init_setproctitle(int argc, char *argv[]);
145 #endif
146 
147 #ifndef HAVE_GETGROUPLIST
148 /* #include <grp.h> XXXX Still needed ? */
149 int getgrouplist(const char *, gid_t, gid_t *, int *);
150 #endif
151 
152 #if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET)
153 int BSDgetopt(int argc, char * const *argv, const char *opts);
154 #include "openbsd-compat/getopt.h"
155 #endif
156 
157 #if defined(HAVE_DECL_WRITEV) && HAVE_DECL_WRITEV == 0
158 # include <sys/types.h>
159 # include <sys/uio.h>
160 int writev(int, struct iovec *, int);
161 #endif
162 
163 /* Home grown routines */
164 #include "bsd-misc.h"
165 #include "bsd-setres_id.h"
166 #include "bsd-statvfs.h"
167 #include "bsd-waitpid.h"
168 #include "bsd-poll.h"
169 
170 #ifndef HAVE_GETPEEREID
171 int getpeereid(int , uid_t *, gid_t *);
172 #endif
173 
174 #ifdef HAVE_ARC4RANDOM
175 # ifndef HAVE_ARC4RANDOM_STIR
176 #  define arc4random_stir()
177 # endif
178 #else
179 unsigned int arc4random(void);
180 void arc4random_stir(void);
181 #endif /* !HAVE_ARC4RANDOM */
182 
183 #ifndef HAVE_ARC4RANDOM_BUF
184 void arc4random_buf(void *, size_t);
185 #endif
186 
187 #ifndef HAVE_ARC4RANDOM_UNIFORM
188 u_int32_t arc4random_uniform(u_int32_t);
189 #endif
190 
191 #ifndef HAVE_ASPRINTF
192 int asprintf(char **, const char *, ...);
193 #endif
194 
195 #ifndef HAVE_OPENPTY
196 # include <sys/ioctl.h>	/* for struct winsize */
197 int openpty(int *, int *, char *, struct termios *, struct winsize *);
198 #endif /* HAVE_OPENPTY */
199 
200 /* #include <sys/types.h> XXX needed? For size_t */
201 
202 #ifndef HAVE_SNPRINTF
203 int snprintf(char *, size_t, SNPRINTF_CONST char *, ...);
204 #endif
205 
206 #ifndef HAVE_STRTOLL
207 long long strtoll(const char *, char **, int);
208 #endif
209 
210 #ifndef HAVE_STRTOUL
211 unsigned long strtoul(const char *, char **, int);
212 #endif
213 
214 #ifndef HAVE_STRTOULL
215 unsigned long long strtoull(const char *, char **, int);
216 #endif
217 
218 #ifndef HAVE_STRTONUM
219 long long strtonum(const char *, long long, long long, const char **);
220 #endif
221 
222 /* multibyte character support */
223 #ifndef HAVE_MBLEN
224 # define mblen(x, y)	1
225 #endif
226 
227 #if !defined(HAVE_VASPRINTF) || !defined(HAVE_VSNPRINTF)
228 # include <stdarg.h>
229 #endif
230 
231 #ifndef HAVE_VASPRINTF
232 int vasprintf(char **, const char *, va_list);
233 #endif
234 
235 #ifndef HAVE_VSNPRINTF
236 int vsnprintf(char *, size_t, const char *, va_list);
237 #endif
238 
239 #ifndef HAVE_USER_FROM_UID
240 char *user_from_uid(uid_t, int);
241 #endif
242 
243 #ifndef HAVE_GROUP_FROM_GID
244 char *group_from_gid(gid_t, int);
245 #endif
246 
247 #ifndef HAVE_TIMINGSAFE_BCMP
248 int timingsafe_bcmp(const void *, const void *, size_t);
249 #endif
250 
251 #ifndef HAVE_BCRYPT_PBKDF
252 int	bcrypt_pbkdf(const char *, size_t, const u_int8_t *, size_t,
253     u_int8_t *, size_t, unsigned int);
254 #endif
255 
256 #ifndef HAVE_EXPLICIT_BZERO
257 void explicit_bzero(void *p, size_t n);
258 #endif
259 
260 void *xmmap(size_t size);
261 char *xcrypt(const char *password, const char *salt);
262 char *shadow_pw(struct passwd *pw);
263 
264 /* rfc2553 socket API replacements */
265 #include "fake-rfc2553.h"
266 
267 /* Routines for a single OS platform */
268 #include "bsd-cray.h"
269 #include "bsd-cygwin_util.h"
270 
271 #include "port-aix.h"
272 #include "port-irix.h"
273 #include "port-linux.h"
274 #include "port-solaris.h"
275 #include "port-tun.h"
276 #include "port-uw.h"
277 
278 /* _FORTIFY_SOURCE breaks FD_ISSET(n)/FD_SET(n) for n > FD_SETSIZE. Avoid. */
279 #if defined(HAVE_FEATURES_H) && defined(_FORTIFY_SOURCE)
280 # include <features.h>
281 # if defined(__GNU_LIBRARY__) && defined(__GLIBC_PREREQ)
282 #  if __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0)
283 #   include <sys/socket.h>  /* Ensure include guard is defined */
284 #   undef FD_SET
285 #   undef FD_ISSET
286 #   define FD_SET(n, set)	kludge_FD_SET(n, set)
287 #   define FD_ISSET(n, set)	kludge_FD_ISSET(n, set)
288 void kludge_FD_SET(int, fd_set *);
289 int kludge_FD_ISSET(int, fd_set *);
290 #  endif /* __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) */
291 # endif /* __GNU_LIBRARY__ && __GLIBC_PREREQ */
292 #endif /* HAVE_FEATURES_H && _FORTIFY_SOURCE */
293 
294 #endif /* _OPENBSD_COMPAT_H */
295