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_GETLINE
64ssize_t getline(char **, size_t *, FILE *);
65#endif
66
67#ifndef HAVE_GETPAGESIZE
68int getpagesize(void);
69#endif
70
71#ifndef HAVE_GETCWD
72char *getcwd(char *pt, size_t size);
73#endif
74
75#ifndef HAVE_REALLOCARRAY
76void *reallocarray(void *, size_t, size_t);
77#endif
78
79#ifndef HAVE_RECALLOCARRAY
80void *recallocarray(void *, size_t, size_t, size_t);
81#endif
82
83#if !defined(HAVE_REALPATH) || defined(BROKEN_REALPATH)
84/*
85 * glibc's FORTIFY_SOURCE can redefine this and prevent us picking up the
86 * compat version.
87 */
88# ifdef BROKEN_REALPATH
89#  define realpath(x, y) _ssh_compat_realpath(x, y)
90# endif
91
92char *realpath(const char *path, char *resolved);
93#endif
94
95#ifndef HAVE_RRESVPORT_AF
96int rresvport_af(int *alport, sa_family_t af);
97#endif
98
99#ifndef HAVE_STRLCPY
100size_t strlcpy(char *dst, const char *src, size_t siz);
101#endif
102
103#ifndef HAVE_STRLCAT
104size_t strlcat(char *dst, const char *src, size_t siz);
105#endif
106
107#ifndef HAVE_STRCASESTR
108char *strcasestr(const char *, const char *);
109#endif
110
111#ifndef HAVE_SETENV
112int setenv(register const char *name, register const char *value, int rewrite);
113#endif
114
115#ifndef HAVE_STRMODE
116void strmode(int mode, char *p);
117#endif
118
119#ifndef HAVE_STRPTIME
120#include  <time.h>
121char *strptime(const char *buf, const char *fmt, struct tm *tm);
122#endif
123
124#if !defined(HAVE_MKDTEMP) || defined(HAVE_STRICT_MKSTEMP)
125int mkstemps(char *path, int slen);
126int mkstemp(char *path);
127char *mkdtemp(char *path);
128#endif
129
130#ifndef HAVE_DAEMON
131int daemon(int nochdir, int noclose);
132#endif
133
134#ifndef HAVE_DIRNAME
135char *dirname(const char *path);
136#endif
137
138#ifndef HAVE_FMT_SCALED
139#define	FMT_SCALED_STRSIZE	7
140int	fmt_scaled(long long number, char *result);
141#endif
142
143#ifndef HAVE_SCAN_SCALED
144int	scan_scaled(char *, long long *);
145#endif
146
147#if defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA)
148char *inet_ntoa(struct in_addr in);
149#endif
150
151#ifndef HAVE_INET_NTOP
152const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);
153#endif
154
155#ifndef HAVE_INET_ATON
156int inet_aton(const char *cp, struct in_addr *addr);
157#endif
158
159#ifndef HAVE_STRSEP
160char *strsep(char **stringp, const char *delim);
161#endif
162
163#ifndef HAVE_SETPROCTITLE
164void setproctitle(const char *fmt, ...);
165void compat_init_setproctitle(int argc, char *argv[]);
166#endif
167
168#ifndef HAVE_GETGROUPLIST
169int getgrouplist(const char *, gid_t, gid_t *, int *);
170#endif
171
172#if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET)
173int BSDgetopt(int argc, char * const *argv, const char *opts);
174#include "openbsd-compat/getopt.h"
175#endif
176
177#if ((defined(HAVE_DECL_READV) && HAVE_DECL_READV == 0) || \
178    (defined(HAVE_DECL_WRITEV) && HAVE_DECL_WRITEV == 0))
179# include <sys/types.h>
180# include <sys/uio.h>
181
182# if defined(HAVE_DECL_READV) && HAVE_DECL_READV == 0
183int readv(int, struct iovec *, int);
184# endif
185
186# if defined(HAVE_DECL_WRITEV) && HAVE_DECL_WRITEV == 0
187int writev(int, struct iovec *, int);
188# endif
189#endif
190
191/* Home grown routines */
192#include "bsd-misc.h"
193#include "bsd-setres_id.h"
194#include "bsd-signal.h"
195#include "bsd-statvfs.h"
196#include "bsd-waitpid.h"
197#include "bsd-poll.h"
198
199#ifndef HAVE_GETPEEREID
200int getpeereid(int , uid_t *, gid_t *);
201#endif
202
203#ifdef HAVE_ARC4RANDOM
204# ifndef HAVE_ARC4RANDOM_STIR
205#  define arc4random_stir()
206# endif
207#else
208unsigned int arc4random(void);
209void arc4random_stir(void);
210#endif /* !HAVE_ARC4RANDOM */
211
212#ifndef HAVE_ARC4RANDOM_BUF
213void arc4random_buf(void *, size_t);
214#endif
215
216#ifndef HAVE_ARC4RANDOM_UNIFORM
217u_int32_t arc4random_uniform(u_int32_t);
218#endif
219
220#ifndef HAVE_ASPRINTF
221int asprintf(char **, const char *, ...);
222#endif
223
224#ifndef HAVE_OPENPTY
225# include <sys/ioctl.h>	/* for struct winsize */
226int openpty(int *, int *, char *, struct termios *, struct winsize *);
227#endif /* HAVE_OPENPTY */
228
229#ifndef HAVE_SNPRINTF
230int snprintf(char *, size_t, SNPRINTF_CONST char *, ...);
231#endif
232
233#ifndef HAVE_STRTOLL
234long long strtoll(const char *, char **, int);
235#endif
236
237#ifndef HAVE_STRTOUL
238unsigned long strtoul(const char *, char **, int);
239#endif
240
241#ifndef HAVE_STRTOULL
242unsigned long long strtoull(const char *, char **, int);
243#endif
244
245#ifndef HAVE_STRTONUM
246long long strtonum(const char *, long long, long long, const char **);
247#endif
248
249/* multibyte character support */
250#ifndef HAVE_MBLEN
251# define mblen(x, y)	(1)
252#endif
253
254#ifndef HAVE_WCWIDTH
255# define wcwidth(x)	(((x) >= 0x20 && (x) <= 0x7e) ? 1 : -1)
256/* force our no-op nl_langinfo and mbtowc */
257# undef HAVE_NL_LANGINFO
258# undef HAVE_MBTOWC
259# undef HAVE_LANGINFO_H
260#endif
261
262#ifndef HAVE_NL_LANGINFO
263# define nl_langinfo(x)	""
264#endif
265
266#ifndef HAVE_MBTOWC
267int mbtowc(wchar_t *, const char*, size_t);
268#endif
269
270#if !defined(HAVE_VASPRINTF) || !defined(HAVE_VSNPRINTF)
271# include <stdarg.h>
272#endif
273
274/*
275 * Some platforms unconditionally undefine va_copy() so we define VA_COPY()
276 * instead.  This is known to be the case on at least some configurations of
277 * AIX with the xlc compiler.
278 */
279#ifndef VA_COPY
280# ifdef HAVE_VA_COPY
281#  define VA_COPY(dest, src) va_copy(dest, src)
282# else
283#  ifdef HAVE___VA_COPY
284#   define VA_COPY(dest, src) __va_copy(dest, src)
285#  else
286#   define VA_COPY(dest, src) (dest) = (src)
287#  endif
288# endif
289#endif
290
291#ifndef HAVE_VASPRINTF
292int vasprintf(char **, const char *, va_list);
293#endif
294
295#ifndef HAVE_VSNPRINTF
296int vsnprintf(char *, size_t, const char *, va_list);
297#endif
298
299#ifndef HAVE_USER_FROM_UID
300char *user_from_uid(uid_t, int);
301#endif
302
303#ifndef HAVE_GROUP_FROM_GID
304char *group_from_gid(gid_t, int);
305#endif
306
307#ifndef HAVE_TIMINGSAFE_BCMP
308int timingsafe_bcmp(const void *, const void *, size_t);
309#endif
310
311#ifndef HAVE_BCRYPT_PBKDF
312int	bcrypt_pbkdf(const char *, size_t, const u_int8_t *, size_t,
313    u_int8_t *, size_t, unsigned int);
314#endif
315
316#ifndef HAVE_EXPLICIT_BZERO
317void explicit_bzero(void *p, size_t n);
318#endif
319
320#ifndef HAVE_FREEZERO
321void freezero(void *, size_t);
322#endif
323
324char *xcrypt(const char *password, const char *salt);
325char *shadow_pw(struct passwd *pw);
326
327/* rfc2553 socket API replacements */
328#include "fake-rfc2553.h"
329
330/* Routines for a single OS platform */
331#include "bsd-cygwin_util.h"
332
333#include "port-aix.h"
334#include "port-irix.h"
335#include "port-linux.h"
336#include "port-solaris.h"
337#include "port-net.h"
338#include "port-uw.h"
339
340/* _FORTIFY_SOURCE breaks FD_ISSET(n)/FD_SET(n) for n > FD_SETSIZE. Avoid. */
341#if defined(HAVE_FEATURES_H) && defined(_FORTIFY_SOURCE)
342# include <features.h>
343# if defined(__GNU_LIBRARY__) && defined(__GLIBC_PREREQ)
344#  if __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0)
345#   include <sys/socket.h>  /* Ensure include guard is defined */
346#   undef FD_SET
347#   undef FD_ISSET
348#   define FD_SET(n, set)	kludge_FD_SET(n, set)
349#   define FD_ISSET(n, set)	kludge_FD_ISSET(n, set)
350void kludge_FD_SET(int, fd_set *);
351int kludge_FD_ISSET(int, fd_set *);
352#  endif /* __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) */
353# endif /* __GNU_LIBRARY__ && __GLIBC_PREREQ */
354#endif /* HAVE_FEATURES_H && _FORTIFY_SOURCE */
355
356#endif /* _OPENBSD_COMPAT_H */
357