openbsd-compat.h revision 296781 
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 "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
88/* #include <sys/types.h> XXX Still needed? */
89size_t strlcpy(char *dst, const char *src, size_t siz);
90#endif
91
92#ifndef HAVE_STRLCAT
93/* #include <sys/types.h> XXX Still needed? */
94size_t strlcat(char *dst, const char *src, size_t siz);
95#endif
96
97#ifndef HAVE_SETENV
98int setenv(register const char *name, register const char *value, int rewrite);
99#endif
100
101#ifndef HAVE_STRMODE
102void strmode(int mode, char *p);
103#endif
104
105#ifndef HAVE_STRPTIME
106#include  <time.h>
107char *strptime(const char *buf, const char *fmt, struct tm *tm);
108#endif
109
110#if !defined(HAVE_MKDTEMP) || defined(HAVE_STRICT_MKSTEMP)
111int mkstemps(char *path, int slen);
112int mkstemp(char *path);
113char *mkdtemp(char *path);
114#endif
115
116#ifndef HAVE_DAEMON
117int daemon(int nochdir, int noclose);
118#endif
119
120#ifndef HAVE_DIRNAME
121char *dirname(const char *path);
122#endif
123
124#ifndef HAVE_FMT_SCALED
125#define	FMT_SCALED_STRSIZE	7
126int	fmt_scaled(long long number, char *result);
127#endif
128
129#ifndef HAVE_SCAN_SCALED
130int	scan_scaled(char *, long long *);
131#endif
132
133#if defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA)
134char *inet_ntoa(struct in_addr in);
135#endif
136
137#ifndef HAVE_INET_NTOP
138const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);
139#endif
140
141#ifndef HAVE_INET_ATON
142int inet_aton(const char *cp, struct in_addr *addr);
143#endif
144
145#ifndef HAVE_STRSEP
146char *strsep(char **stringp, const char *delim);
147#endif
148
149#ifndef HAVE_SETPROCTITLE
150void setproctitle(const char *fmt, ...);
151void compat_init_setproctitle(int argc, char *argv[]);
152#endif
153
154#ifndef HAVE_GETGROUPLIST
155/* #include <grp.h> XXXX Still needed ? */
156int getgrouplist(const char *, gid_t, gid_t *, int *);
157#endif
158
159#if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET)
160int BSDgetopt(int argc, char * const *argv, const char *opts);
161#include "openbsd-compat/getopt.h"
162#endif
163
164#if defined(HAVE_DECL_WRITEV) && HAVE_DECL_WRITEV == 0
165# include <sys/types.h>
166# include <sys/uio.h>
167int writev(int, struct iovec *, int);
168#endif
169
170/* Home grown routines */
171#include "bsd-misc.h"
172#include "bsd-setres_id.h"
173#include "bsd-statvfs.h"
174#include "bsd-waitpid.h"
175#include "bsd-poll.h"
176
177#ifndef HAVE_GETPEEREID
178int getpeereid(int , uid_t *, gid_t *);
179#endif
180
181#ifdef HAVE_ARC4RANDOM
182# ifndef HAVE_ARC4RANDOM_STIR
183#  define arc4random_stir()
184# endif
185#else
186unsigned int arc4random(void);
187void arc4random_stir(void);
188#endif /* !HAVE_ARC4RANDOM */
189
190#ifndef HAVE_ARC4RANDOM_BUF
191void arc4random_buf(void *, size_t);
192#endif
193
194#ifndef HAVE_ARC4RANDOM_UNIFORM
195u_int32_t arc4random_uniform(u_int32_t);
196#endif
197
198#ifndef HAVE_ASPRINTF
199int asprintf(char **, const char *, ...);
200#endif
201
202#ifndef HAVE_OPENPTY
203# include <sys/ioctl.h>	/* for struct winsize */
204int openpty(int *, int *, char *, struct termios *, struct winsize *);
205#endif /* HAVE_OPENPTY */
206
207/* #include <sys/types.h> XXX needed? For size_t */
208
209#ifndef HAVE_SNPRINTF
210int snprintf(char *, size_t, SNPRINTF_CONST char *, ...);
211#endif
212
213#ifndef HAVE_STRTOLL
214long long strtoll(const char *, char **, int);
215#endif
216
217#ifndef HAVE_STRTOUL
218unsigned long strtoul(const char *, char **, int);
219#endif
220
221#ifndef HAVE_STRTOULL
222unsigned long long strtoull(const char *, char **, int);
223#endif
224
225#ifndef HAVE_STRTONUM
226long long strtonum(const char *, long long, long long, const char **);
227#endif
228
229/* multibyte character support */
230#ifndef HAVE_MBLEN
231# define mblen(x, y)	(1)
232#endif
233
234#if !defined(HAVE_VASPRINTF) || !defined(HAVE_VSNPRINTF)
235# include <stdarg.h>
236#endif
237
238#ifndef HAVE_VASPRINTF
239int vasprintf(char **, const char *, va_list);
240#endif
241
242#ifndef HAVE_VSNPRINTF
243int vsnprintf(char *, size_t, const char *, va_list);
244#endif
245
246#ifndef HAVE_USER_FROM_UID
247char *user_from_uid(uid_t, int);
248#endif
249
250#ifndef HAVE_GROUP_FROM_GID
251char *group_from_gid(gid_t, int);
252#endif
253
254#ifndef HAVE_TIMINGSAFE_BCMP
255int timingsafe_bcmp(const void *, const void *, size_t);
256#endif
257
258#ifndef HAVE_BCRYPT_PBKDF
259int	bcrypt_pbkdf(const char *, size_t, const u_int8_t *, size_t,
260    u_int8_t *, size_t, unsigned int);
261#endif
262
263#ifndef HAVE_EXPLICIT_BZERO
264void explicit_bzero(void *p, size_t n);
265#endif
266
267void *xmmap(size_t size);
268char *xcrypt(const char *password, const char *salt);
269char *shadow_pw(struct passwd *pw);
270
271/* rfc2553 socket API replacements */
272#include "fake-rfc2553.h"
273
274/* Routines for a single OS platform */
275#include "bsd-cray.h"
276#include "bsd-cygwin_util.h"
277
278#include "port-aix.h"
279#include "port-irix.h"
280#include "port-linux.h"
281#include "port-solaris.h"
282#include "port-tun.h"
283#include "port-uw.h"
284
285/* _FORTIFY_SOURCE breaks FD_ISSET(n)/FD_SET(n) for n > FD_SETSIZE. Avoid. */
286#if defined(HAVE_FEATURES_H) && defined(_FORTIFY_SOURCE)
287# include <features.h>
288# if defined(__GNU_LIBRARY__) && defined(__GLIBC_PREREQ)
289#  if __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0)
290#   include <sys/socket.h>  /* Ensure include guard is defined */
291#   undef FD_SET
292#   undef FD_ISSET
293#   define FD_SET(n, set)	kludge_FD_SET(n, set)
294#   define FD_ISSET(n, set)	kludge_FD_ISSET(n, set)
295void kludge_FD_SET(int, fd_set *);
296int kludge_FD_ISSET(int, fd_set *);
297#  endif /* __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) */
298# endif /* __GNU_LIBRARY__ && __GLIBC_PREREQ */
299#endif /* HAVE_FEATURES_H && _FORTIFY_SOURCE */
300
301#endif /* _OPENBSD_COMPAT_H */
302