xref: /freebsd/crypto/openssh/openbsd-compat/openbsd-compat.h (revision a0ee8cc636cd5c2374ec44ca71226564ea0bca95)
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 "sha2.h"
47 #include "blf.h"
48 
49 #ifndef HAVE_BASENAME
50 char *basename(const char *path);
51 #endif
52 
53 #ifndef HAVE_BINDRESVPORT_SA
54 int bindresvport_sa(int sd, struct sockaddr *sa);
55 #endif
56 
57 #ifndef HAVE_CLOSEFROM
58 void closefrom(int);
59 #endif
60 
61 #ifndef HAVE_GETCWD
62 char *getcwd(char *pt, size_t size);
63 #endif
64 
65 #if !defined(HAVE_REALPATH) || defined(BROKEN_REALPATH)
66 char *realpath(const char *path, char *resolved);
67 #endif
68 
69 #ifndef HAVE_RRESVPORT_AF
70 int rresvport_af(int *alport, sa_family_t af);
71 #endif
72 
73 #ifndef HAVE_STRLCPY
74 /* #include <sys/types.h> XXX Still needed? */
75 size_t strlcpy(char *dst, const char *src, size_t siz);
76 #endif
77 
78 #ifndef HAVE_STRLCAT
79 /* #include <sys/types.h> XXX Still needed? */
80 size_t strlcat(char *dst, const char *src, size_t siz);
81 #endif
82 
83 #ifndef HAVE_SETENV
84 int setenv(register const char *name, register const char *value, int rewrite);
85 #endif
86 
87 #ifndef HAVE_STRMODE
88 void strmode(int mode, char *p);
89 #endif
90 
91 #ifndef HAVE_STRPTIME
92 #include  <time.h>
93 char *strptime(const char *buf, const char *fmt, struct tm *tm);
94 #endif
95 
96 #if !defined(HAVE_MKDTEMP) || defined(HAVE_STRICT_MKSTEMP)
97 int mkstemps(char *path, int slen);
98 int mkstemp(char *path);
99 char *mkdtemp(char *path);
100 #endif
101 
102 #ifndef HAVE_DAEMON
103 int daemon(int nochdir, int noclose);
104 #endif
105 
106 #ifndef HAVE_DIRNAME
107 char *dirname(const char *path);
108 #endif
109 
110 #ifndef HAVE_FMT_SCALED
111 #define	FMT_SCALED_STRSIZE	7
112 int	fmt_scaled(long long number, char *result);
113 #endif
114 
115 #ifndef HAVE_SCAN_SCALED
116 int	scan_scaled(char *, long long *);
117 #endif
118 
119 #if defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA)
120 char *inet_ntoa(struct in_addr in);
121 #endif
122 
123 #ifndef HAVE_INET_NTOP
124 const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);
125 #endif
126 
127 #ifndef HAVE_INET_ATON
128 int inet_aton(const char *cp, struct in_addr *addr);
129 #endif
130 
131 #ifndef HAVE_STRSEP
132 char *strsep(char **stringp, const char *delim);
133 #endif
134 
135 #ifndef HAVE_SETPROCTITLE
136 void setproctitle(const char *fmt, ...);
137 void compat_init_setproctitle(int argc, char *argv[]);
138 #endif
139 
140 #ifndef HAVE_GETGROUPLIST
141 /* #include <grp.h> XXXX Still needed ? */
142 int getgrouplist(const char *, gid_t, gid_t *, int *);
143 #endif
144 
145 #if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET)
146 int BSDgetopt(int argc, char * const *argv, const char *opts);
147 #include "openbsd-compat/getopt.h"
148 #endif
149 
150 #if defined(HAVE_DECL_WRITEV) && HAVE_DECL_WRITEV == 0
151 # include <sys/types.h>
152 # include <sys/uio.h>
153 int writev(int, struct iovec *, int);
154 #endif
155 
156 /* Home grown routines */
157 #include "bsd-misc.h"
158 #include "bsd-setres_id.h"
159 #include "bsd-statvfs.h"
160 #include "bsd-waitpid.h"
161 #include "bsd-poll.h"
162 
163 #ifndef HAVE_GETPEEREID
164 int getpeereid(int , uid_t *, gid_t *);
165 #endif
166 
167 #ifdef HAVE_ARC4RANDOM
168 # ifndef HAVE_ARC4RANDOM_STIR
169 #  define arc4random_stir()
170 # endif
171 #else
172 unsigned int arc4random(void);
173 void arc4random_stir(void);
174 #endif /* !HAVE_ARC4RANDOM */
175 
176 #ifndef HAVE_ARC4RANDOM_BUF
177 void arc4random_buf(void *, size_t);
178 #endif
179 
180 #ifndef HAVE_ARC4RANDOM_UNIFORM
181 u_int32_t arc4random_uniform(u_int32_t);
182 #endif
183 
184 #ifndef HAVE_ASPRINTF
185 int asprintf(char **, const char *, ...);
186 #endif
187 
188 #ifndef HAVE_OPENPTY
189 # include <sys/ioctl.h>	/* for struct winsize */
190 int openpty(int *, int *, char *, struct termios *, struct winsize *);
191 #endif /* HAVE_OPENPTY */
192 
193 /* #include <sys/types.h> XXX needed? For size_t */
194 
195 #ifndef HAVE_SNPRINTF
196 int snprintf(char *, size_t, SNPRINTF_CONST char *, ...);
197 #endif
198 
199 #ifndef HAVE_STRTOLL
200 long long strtoll(const char *, char **, int);
201 #endif
202 
203 #ifndef HAVE_STRTOUL
204 unsigned long strtoul(const char *, char **, int);
205 #endif
206 
207 #ifndef HAVE_STRTOULL
208 unsigned long long strtoull(const char *, char **, int);
209 #endif
210 
211 #ifndef HAVE_STRTONUM
212 long long strtonum(const char *, long long, long long, const char **);
213 #endif
214 
215 /* multibyte character support */
216 #ifndef HAVE_MBLEN
217 # define mblen(x, y)	1
218 #endif
219 
220 #if !defined(HAVE_VASPRINTF) || !defined(HAVE_VSNPRINTF)
221 # include <stdarg.h>
222 #endif
223 
224 #ifndef HAVE_VASPRINTF
225 int vasprintf(char **, const char *, va_list);
226 #endif
227 
228 #ifndef HAVE_VSNPRINTF
229 int vsnprintf(char *, size_t, const char *, va_list);
230 #endif
231 
232 #ifndef HAVE_USER_FROM_UID
233 char *user_from_uid(uid_t, int);
234 #endif
235 
236 #ifndef HAVE_GROUP_FROM_GID
237 char *group_from_gid(gid_t, int);
238 #endif
239 
240 #ifndef HAVE_TIMINGSAFE_BCMP
241 int timingsafe_bcmp(const void *, const void *, size_t);
242 #endif
243 
244 #ifndef HAVE_BCRYPT_PBKDF
245 int	bcrypt_pbkdf(const char *, size_t, const u_int8_t *, size_t,
246     u_int8_t *, size_t, unsigned int);
247 #endif
248 
249 #ifndef HAVE_EXPLICIT_BZERO
250 void explicit_bzero(void *p, size_t n);
251 #endif
252 
253 void *xmmap(size_t size);
254 char *xcrypt(const char *password, const char *salt);
255 char *shadow_pw(struct passwd *pw);
256 
257 /* rfc2553 socket API replacements */
258 #include "fake-rfc2553.h"
259 
260 /* Routines for a single OS platform */
261 #include "bsd-cray.h"
262 #include "bsd-cygwin_util.h"
263 
264 #include "port-aix.h"
265 #include "port-irix.h"
266 #include "port-linux.h"
267 #include "port-solaris.h"
268 #include "port-tun.h"
269 #include "port-uw.h"
270 
271 /* _FORTIFY_SOURCE breaks FD_ISSET(n)/FD_SET(n) for n > FD_SETSIZE. Avoid. */
272 #if defined(HAVE_FEATURES_H) && defined(_FORTIFY_SOURCE)
273 # include <features.h>
274 # if defined(__GNU_LIBRARY__) && defined(__GLIBC_PREREQ)
275 #  if __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0)
276 #   include <sys/socket.h>  /* Ensure include guard is defined */
277 #   undef FD_SET
278 #   undef FD_ISSET
279 #   define FD_SET(n, set)	kludge_FD_SET(n, set)
280 #   define FD_ISSET(n, set)	kludge_FD_ISSET(n, set)
281 void kludge_FD_SET(int, fd_set *);
282 int kludge_FD_ISSET(int, fd_set *);
283 #  endif /* __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) */
284 # endif /* __GNU_LIBRARY__ && __GLIBC_PREREQ */
285 #endif /* HAVE_FEATURES_H && _FORTIFY_SOURCE */
286 
287 #endif /* _OPENBSD_COMPAT_H */
288