openbsd-compat.h revision 323134 
1/*
2 * Copyright (c) 1999-2003 Damien Miller.  All rights reserved.
3 * Copyright (c) 2003 Ben Lindstrom. All rights reserved.
4 * Copyright (c) 2002 Tim Rice.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef _OPENBSD_COMPAT_H
28#define _OPENBSD_COMPAT_H
29
30#include "includes.h"
31
32#include <sys/types.h>
33#include <pwd.h>
34
35#include <sys/socket.h>
36
37#include <stddef.h>  /* for wchar_t */
38
39/* OpenBSD function replacements */
40#include "base64.h"
41#include "sigact.h"
42#include "readpassphrase.h"
43#include "vis.h"
44#include "getrrsetbyname.h"
45#include "sha1.h"
46#include "sha2.h"
47#include "rmd160.h"
48#include "md5.h"
49#include "blf.h"
50
51#ifndef HAVE_BASENAME
52char *basename(const char *path);
53#endif
54
55#ifndef HAVE_BINDRESVPORT_SA
56int bindresvport_sa(int sd, struct sockaddr *sa);
57#endif
58
59#ifndef HAVE_CLOSEFROM
60void closefrom(int);
61#endif
62
63#ifndef HAVE_GETCWD
64char *getcwd(char *pt, size_t size);
65#endif
66
67#ifndef HAVE_REALLOCARRAY
68void *reallocarray(void *, size_t, size_t);
69#endif
70
71#if !defined(HAVE_REALPATH) || defined(BROKEN_REALPATH)
72/*
73 * glibc's FORTIFY_SOURCE can redefine this and prevent us picking up the
74 * compat version.
75 */
76# ifdef BROKEN_REALPATH
77#  define realpath(x, y) _ssh_compat_realpath(x, y)
78# endif
79
80char *realpath(const char *path, char *resolved);
81#endif
82
83#ifndef HAVE_RRESVPORT_AF
84int rresvport_af(int *alport, sa_family_t af);
85#endif
86
87#ifndef HAVE_STRLCPY
88size_t strlcpy(char *dst, const char *src, size_t siz);
89#endif
90
91#ifndef HAVE_STRLCAT
92size_t strlcat(char *dst, const char *src, size_t siz);
93#endif
94
95#ifndef HAVE_STRCASESTR
96char *strcasestr(const char *, const char *);
97#endif
98
99#ifndef HAVE_SETENV
100int setenv(register const char *name, register const char *value, int rewrite);
101#endif
102
103#ifndef HAVE_STRMODE
104void strmode(int mode, char *p);
105#endif
106
107#ifndef HAVE_STRPTIME
108#include  <time.h>
109char *strptime(const char *buf, const char *fmt, struct tm *tm);
110#endif
111
112#if !defined(HAVE_MKDTEMP) || defined(HAVE_STRICT_MKSTEMP)
113int mkstemps(char *path, int slen);
114int mkstemp(char *path);
115char *mkdtemp(char *path);
116#endif
117
118#ifndef HAVE_DAEMON
119int daemon(int nochdir, int noclose);
120#endif
121
122#ifndef HAVE_DIRNAME
123char *dirname(const char *path);
124#endif
125
126#ifndef HAVE_FMT_SCALED
127#define	FMT_SCALED_STRSIZE	7
128int	fmt_scaled(long long number, char *result);
129#endif
130
131#ifndef HAVE_SCAN_SCALED
132int	scan_scaled(char *, long long *);
133#endif
134
135#if defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA)
136char *inet_ntoa(struct in_addr in);
137#endif
138
139#ifndef HAVE_INET_NTOP
140const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);
141#endif
142
143#ifndef HAVE_INET_ATON
144int inet_aton(const char *cp, struct in_addr *addr);
145#endif
146
147#ifndef HAVE_STRSEP
148char *strsep(char **stringp, const char *delim);
149#endif
150
151#ifndef HAVE_SETPROCTITLE
152void setproctitle(const char *fmt, ...);
153void compat_init_setproctitle(int argc, char *argv[]);
154#endif
155
156#ifndef HAVE_GETGROUPLIST
157int getgrouplist(const char *, gid_t, gid_t *, int *);
158#endif
159
160#if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET)
161int BSDgetopt(int argc, char * const *argv, const char *opts);
162#include "openbsd-compat/getopt.h"
163#endif
164
165#if defined(HAVE_DECL_WRITEV) && HAVE_DECL_WRITEV == 0
166# include <sys/types.h>
167# include <sys/uio.h>
168int writev(int, struct iovec *, int);
169#endif
170
171/* Home grown routines */
172#include "bsd-misc.h"
173#include "bsd-setres_id.h"
174#include "bsd-statvfs.h"
175#include "bsd-waitpid.h"
176#include "bsd-poll.h"
177
178#ifndef HAVE_GETPEEREID
179int getpeereid(int , uid_t *, gid_t *);
180#endif
181
182#ifdef HAVE_ARC4RANDOM
183# ifndef HAVE_ARC4RANDOM_STIR
184#  define arc4random_stir()
185# endif
186#else
187unsigned int arc4random(void);
188void arc4random_stir(void);
189#endif /* !HAVE_ARC4RANDOM */
190
191#ifndef HAVE_ARC4RANDOM_BUF
192void arc4random_buf(void *, size_t);
193#endif
194
195#ifndef HAVE_ARC4RANDOM_UNIFORM
196u_int32_t arc4random_uniform(u_int32_t);
197#endif
198
199#ifndef HAVE_ASPRINTF
200int asprintf(char **, const char *, ...);
201#endif
202
203#ifndef HAVE_OPENPTY
204# include <sys/ioctl.h>	/* for struct winsize */
205int openpty(int *, int *, char *, struct termios *, struct winsize *);
206#endif /* HAVE_OPENPTY */
207
208#ifndef HAVE_SNPRINTF
209int snprintf(char *, size_t, SNPRINTF_CONST char *, ...);
210#endif
211
212#ifndef HAVE_STRTOLL
213long long strtoll(const char *, char **, int);
214#endif
215
216#ifndef HAVE_STRTOUL
217unsigned long strtoul(const char *, char **, int);
218#endif
219
220#ifndef HAVE_STRTOULL
221unsigned long long strtoull(const char *, char **, int);
222#endif
223
224#ifndef HAVE_STRTONUM
225long long strtonum(const char *, long long, long long, const char **);
226#endif
227
228/* multibyte character support */
229#ifndef HAVE_MBLEN
230# define mblen(x, y)	(1)
231#endif
232
233#ifndef HAVE_WCWIDTH
234# define wcwidth(x)	(((x) >= 0x20 && (x) <= 0x7e) ? 1 : -1)
235/* force our no-op nl_langinfo and mbtowc */
236# undef HAVE_NL_LANGINFO
237# undef HAVE_MBTOWC
238# undef HAVE_LANGINFO_H
239#endif
240
241#ifndef HAVE_NL_LANGINFO
242# define nl_langinfo(x)	""
243#endif
244
245#ifndef HAVE_MBTOWC
246int mbtowc(wchar_t *, const char*, size_t);
247#endif
248
249#if !defined(HAVE_VASPRINTF) || !defined(HAVE_VSNPRINTF)
250# include <stdarg.h>
251#endif
252
253/*
254 * Some platforms unconditionally undefine va_copy() so we define VA_COPY()
255 * instead.  This is known to be the case on at least some configurations of
256 * AIX with the xlc compiler.
257 */
258#ifndef VA_COPY
259# ifdef HAVE_VA_COPY
260#  define VA_COPY(dest, src) va_copy(dest, src)
261# else
262#  ifdef HAVE___VA_COPY
263#   define VA_COPY(dest, src) __va_copy(dest, src)
264#  else
265#   define VA_COPY(dest, src) (dest) = (src)
266#  endif
267# endif
268#endif
269
270#ifndef HAVE_VASPRINTF
271int vasprintf(char **, const char *, va_list);
272#endif
273
274#ifndef HAVE_VSNPRINTF
275int vsnprintf(char *, size_t, const char *, va_list);
276#endif
277
278#ifndef HAVE_USER_FROM_UID
279char *user_from_uid(uid_t, int);
280#endif
281
282#ifndef HAVE_GROUP_FROM_GID
283char *group_from_gid(gid_t, int);
284#endif
285
286#ifndef HAVE_TIMINGSAFE_BCMP
287int timingsafe_bcmp(const void *, const void *, size_t);
288#endif
289
290#ifndef HAVE_BCRYPT_PBKDF
291int	bcrypt_pbkdf(const char *, size_t, const u_int8_t *, size_t,
292    u_int8_t *, size_t, unsigned int);
293#endif
294
295#ifndef HAVE_EXPLICIT_BZERO
296void explicit_bzero(void *p, size_t n);
297#endif
298
299char *xcrypt(const char *password, const char *salt);
300char *shadow_pw(struct passwd *pw);
301
302/* rfc2553 socket API replacements */
303#include "fake-rfc2553.h"
304
305/* Routines for a single OS platform */
306#include "bsd-cray.h"
307#include "bsd-cygwin_util.h"
308
309#include "port-aix.h"
310#include "port-irix.h"
311#include "port-linux.h"
312#include "port-solaris.h"
313#include "port-tun.h"
314#include "port-uw.h"
315
316/* _FORTIFY_SOURCE breaks FD_ISSET(n)/FD_SET(n) for n > FD_SETSIZE. Avoid. */
317#if defined(HAVE_FEATURES_H) && defined(_FORTIFY_SOURCE)
318# include <features.h>
319# if defined(__GNU_LIBRARY__) && defined(__GLIBC_PREREQ)
320#  if __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0)
321#   include <sys/socket.h>  /* Ensure include guard is defined */
322#   undef FD_SET
323#   undef FD_ISSET
324#   define FD_SET(n, set)	kludge_FD_SET(n, set)
325#   define FD_ISSET(n, set)	kludge_FD_ISSET(n, set)
326void kludge_FD_SET(int, fd_set *);
327int kludge_FD_ISSET(int, fd_set *);
328#  endif /* __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) */
329# endif /* __GNU_LIBRARY__ && __GLIBC_PREREQ */
330#endif /* HAVE_FEATURES_H && _FORTIFY_SOURCE */
331
332#endif /* _OPENBSD_COMPAT_H */
333