openbsd-compat.h revision 323129 
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#include <stddef.h>  /* for wchar_t */
40
41/* OpenBSD function replacements */
42#include "base64.h"
43#include "sigact.h"
44#include "readpassphrase.h"
45#include "vis.h"
46#include "getrrsetbyname.h"
47#include "sha1.h"
48#include "sha2.h"
49#include "rmd160.h"
50#include "md5.h"
51#include "blf.h"
52
53#ifndef HAVE_BASENAME
54char *basename(const char *path);
55#endif
56
57#ifndef HAVE_BINDRESVPORT_SA
58int bindresvport_sa(int sd, struct sockaddr *sa);
59#endif
60
61#ifndef HAVE_CLOSEFROM
62void closefrom(int);
63#endif
64
65#ifndef HAVE_GETCWD
66char *getcwd(char *pt, size_t size);
67#endif
68
69#ifndef HAVE_REALLOCARRAY
70void *reallocarray(void *, size_t, size_t);
71#endif
72
73#if !defined(HAVE_REALPATH) || defined(BROKEN_REALPATH)
74/*
75 * glibc's FORTIFY_SOURCE can redefine this and prevent us picking up the
76 * compat version.
77 */
78# ifdef BROKEN_REALPATH
79#  define realpath(x, y) _ssh_compat_realpath(x, y)
80# endif
81
82char *realpath(const char *path, char *resolved);
83#endif
84
85#ifndef HAVE_RRESVPORT_AF
86int rresvport_af(int *alport, sa_family_t af);
87#endif
88
89#ifndef HAVE_STRLCPY
90/* #include <sys/types.h> XXX Still needed? */
91size_t strlcpy(char *dst, const char *src, size_t siz);
92#endif
93
94#ifndef HAVE_STRLCAT
95/* #include <sys/types.h> XXX Still needed? */
96size_t strlcat(char *dst, const char *src, size_t siz);
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
157/* #include <grp.h> XXXX Still needed ? */
158int getgrouplist(const char *, gid_t, gid_t *, int *);
159#endif
160
161#if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET)
162int BSDgetopt(int argc, char * const *argv, const char *opts);
163#include "openbsd-compat/getopt.h"
164#endif
165
166#if defined(HAVE_DECL_WRITEV) && HAVE_DECL_WRITEV == 0
167# include <sys/types.h>
168# include <sys/uio.h>
169int writev(int, struct iovec *, int);
170#endif
171
172/* Home grown routines */
173#include "bsd-misc.h"
174#include "bsd-setres_id.h"
175#include "bsd-statvfs.h"
176#include "bsd-waitpid.h"
177#include "bsd-poll.h"
178
179#ifndef HAVE_GETPEEREID
180int getpeereid(int , uid_t *, gid_t *);
181#endif
182
183#ifdef HAVE_ARC4RANDOM
184# ifndef HAVE_ARC4RANDOM_STIR
185#  define arc4random_stir()
186# endif
187#else
188unsigned int arc4random(void);
189void arc4random_stir(void);
190#endif /* !HAVE_ARC4RANDOM */
191
192#ifndef HAVE_ARC4RANDOM_BUF
193void arc4random_buf(void *, size_t);
194#endif
195
196#ifndef HAVE_ARC4RANDOM_UNIFORM
197u_int32_t arc4random_uniform(u_int32_t);
198#endif
199
200#ifndef HAVE_ASPRINTF
201int asprintf(char **, const char *, ...);
202#endif
203
204#ifndef HAVE_OPENPTY
205# include <sys/ioctl.h>	/* for struct winsize */
206int openpty(int *, int *, char *, struct termios *, struct winsize *);
207#endif /* HAVE_OPENPTY */
208
209/* #include <sys/types.h> XXX needed? For size_t */
210
211#ifndef HAVE_SNPRINTF
212int snprintf(char *, size_t, SNPRINTF_CONST char *, ...);
213#endif
214
215#ifndef HAVE_STRTOLL
216long long strtoll(const char *, char **, int);
217#endif
218
219#ifndef HAVE_STRTOUL
220unsigned long strtoul(const char *, char **, int);
221#endif
222
223#ifndef HAVE_STRTOULL
224unsigned long long strtoull(const char *, char **, int);
225#endif
226
227#ifndef HAVE_STRTONUM
228long long strtonum(const char *, long long, long long, const char **);
229#endif
230
231/* multibyte character support */
232#ifndef HAVE_MBLEN
233# define mblen(x, y)	(1)
234#endif
235
236#ifndef HAVE_WCWIDTH
237# define wcwidth(x)	(((x) >= 0x20 && (x) <= 0x7e) ? 1 : -1)
238/* force our no-op nl_langinfo and mbtowc */
239# undef HAVE_NL_LANGINFO
240# undef HAVE_MBTOWC
241# undef HAVE_LANGINFO_H
242#endif
243
244#ifndef HAVE_NL_LANGINFO
245# define nl_langinfo(x)	""
246#endif
247
248#ifndef HAVE_MBTOWC
249int mbtowc(wchar_t *, const char*, size_t);
250#endif
251
252#if !defined(HAVE_VASPRINTF) || !defined(HAVE_VSNPRINTF)
253# include <stdarg.h>
254#endif
255
256/*
257 * Some platforms unconditionally undefine va_copy() so we define VA_COPY()
258 * instead.  This is known to be the case on at least some configurations of
259 * AIX with the xlc compiler.
260 */
261#ifndef VA_COPY
262# ifdef HAVE_VA_COPY
263#  define VA_COPY(dest, src) va_copy(dest, src)
264# else
265#  ifdef HAVE___VA_COPY
266#   define VA_COPY(dest, src) __va_copy(dest, src)
267#  else
268#   define VA_COPY(dest, src) (dest) = (src)
269#  endif
270# endif
271#endif
272
273#ifndef HAVE_VASPRINTF
274int vasprintf(char **, const char *, va_list);
275#endif
276
277#ifndef HAVE_VSNPRINTF
278int vsnprintf(char *, size_t, const char *, va_list);
279#endif
280
281#ifndef HAVE_USER_FROM_UID
282char *user_from_uid(uid_t, int);
283#endif
284
285#ifndef HAVE_GROUP_FROM_GID
286char *group_from_gid(gid_t, int);
287#endif
288
289#ifndef HAVE_TIMINGSAFE_BCMP
290int timingsafe_bcmp(const void *, const void *, size_t);
291#endif
292
293#ifndef HAVE_BCRYPT_PBKDF
294int	bcrypt_pbkdf(const char *, size_t, const u_int8_t *, size_t,
295    u_int8_t *, size_t, unsigned int);
296#endif
297
298#ifndef HAVE_EXPLICIT_BZERO
299void explicit_bzero(void *p, size_t n);
300#endif
301
302void *xmmap(size_t size);
303char *xcrypt(const char *password, const char *salt);
304char *shadow_pw(struct passwd *pw);
305
306/* rfc2553 socket API replacements */
307#include "fake-rfc2553.h"
308
309/* Routines for a single OS platform */
310#include "bsd-cray.h"
311#include "bsd-cygwin_util.h"
312
313#include "port-aix.h"
314#include "port-irix.h"
315#include "port-linux.h"
316#include "port-solaris.h"
317#include "port-tun.h"
318#include "port-uw.h"
319
320/* _FORTIFY_SOURCE breaks FD_ISSET(n)/FD_SET(n) for n > FD_SETSIZE. Avoid. */
321#if defined(HAVE_FEATURES_H) && defined(_FORTIFY_SOURCE)
322# include <features.h>
323# if defined(__GNU_LIBRARY__) && defined(__GLIBC_PREREQ)
324#  if __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0)
325#   include <sys/socket.h>  /* Ensure include guard is defined */
326#   undef FD_SET
327#   undef FD_ISSET
328#   define FD_SET(n, set)	kludge_FD_SET(n, set)
329#   define FD_ISSET(n, set)	kludge_FD_ISSET(n, set)
330void kludge_FD_SET(int, fd_set *);
331int kludge_FD_ISSET(int, fd_set *);
332#  endif /* __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) */
333# endif /* __GNU_LIBRARY__ && __GLIBC_PREREQ */
334#endif /* HAVE_FEATURES_H && _FORTIFY_SOURCE */
335
336#endif /* _OPENBSD_COMPAT_H */
337