crypto/openssh/openbsd-compat/openbsd-compat.h

   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
  54 char *basename(const char *path);
  55 #endif
  56
  57 #ifndef HAVE_BINDRESVPORT_SA
  58 int bindresvport_sa(int sd, struct sockaddr *sa);
  59 #endif
  60
  61 #ifndef HAVE_CLOSEFROM
  62 void closefrom(int);
  63 #endif
  64
  65 #ifndef HAVE_GETCWD
  66 char *getcwd(char *pt, size_t size);
  67 #endif
  68
  69 #ifndef HAVE_REALLOCARRAY
  70 void *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
  82 char *realpath(const char *path, char *resolved);
  83 #endif
  84
  85 #ifndef HAVE_RRESVPORT_AF
  86 int rresvport_af(int *alport, sa_family_t af);
  87 #endif
  88
  89 #ifndef HAVE_STRLCPY
  90 /* #include <sys/types.h> XXX Still needed? */
  91 size_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? */
  96 size_t strlcat(char *dst, const char *src, size_t siz);
  97 #endif
  98
  99 #ifndef HAVE_SETENV
 100 int setenv(register const char *name, register const char *value, int rewrite);
 101 #endif
 102
 103 #ifndef HAVE_STRMODE
 104 void strmode(int mode, char *p);
 105 #endif
 106
 107 #ifndef HAVE_STRPTIME
 108 #include  <time.h>
 109 char *strptime(const char *buf, const char *fmt, struct tm *tm);
 110 #endif
 111
 112 #if !defined(HAVE_MKDTEMP) || defined(HAVE_STRICT_MKSTEMP)
 113 int mkstemps(char *path, int slen);
 114 int mkstemp(char *path);
 115 char *mkdtemp(char *path);
 116 #endif
 117
 118 #ifndef HAVE_DAEMON
 119 int daemon(int nochdir, int noclose);
 120 #endif
 121
 122 #ifndef HAVE_DIRNAME
 123 char *dirname(const char *path);
 124 #endif
 125
 126 #ifndef HAVE_FMT_SCALED
 127 #define FMT_SCALED_STRSIZE      7
 128 int     fmt_scaled(long long number, char *result);
 129 #endif
 130
 131 #ifndef HAVE_SCAN_SCALED
 132 int     scan_scaled(char *, long long *);
 133 #endif
 134
 135 #if defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA)
 136 char *inet_ntoa(struct in_addr in);
 137 #endif
 138
 139 #ifndef HAVE_INET_NTOP
 140 const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);
 141 #endif
 142
 143 #ifndef HAVE_INET_ATON
 144 int inet_aton(const char *cp, struct in_addr *addr);
 145 #endif
 146
 147 #ifndef HAVE_STRSEP
 148 char *strsep(char **stringp, const char *delim);
 149 #endif
 150
 151 #ifndef HAVE_SETPROCTITLE
 152 void setproctitle(const char *fmt, ...);
 153 void compat_init_setproctitle(int argc, char *argv[]);
 154 #endif
 155
 156 #ifndef HAVE_GETGROUPLIST
 157 /* #include <grp.h> XXXX Still needed ? */
 158 int getgrouplist(const char *, gid_t, gid_t *, int *);
 159 #endif
 160
 161 #if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET)
 162 int 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>
 169 int 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
 180 int 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
 188 unsigned int arc4random(void);
 189 void arc4random_stir(void);
 190 #endif /* !HAVE_ARC4RANDOM */
 191
 192 #ifndef HAVE_ARC4RANDOM_BUF
 193 void arc4random_buf(void *, size_t);
 194 #endif
 195
 196 #ifndef HAVE_ARC4RANDOM_UNIFORM
 197 u_int32_t arc4random_uniform(u_int32_t);
 198 #endif
 199
 200 #ifndef HAVE_ASPRINTF
 201 int asprintf(char **, const char *, ...);
 202 #endif
 203
 204 #ifndef HAVE_OPENPTY
 205 # include <sys/ioctl.h> /* for struct winsize */
 206 int 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
 212 int snprintf(char *, size_t, SNPRINTF_CONST char *, ...);
 213 #endif
 214
 215 #ifndef HAVE_STRTOLL
 216 long long strtoll(const char *, char **, int);
 217 #endif
 218
 219 #ifndef HAVE_STRTOUL
 220 unsigned long strtoul(const char *, char **, int);
 221 #endif
 222
 223 #ifndef HAVE_STRTOULL
 224 unsigned long long strtoull(const char *, char **, int);
 225 #endif
 226
 227 #ifndef HAVE_STRTONUM
 228 long 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
 249 int 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
 274 int vasprintf(char **, const char *, va_list);
 275 #endif
 276
 277 #ifndef HAVE_VSNPRINTF
 278 int vsnprintf(char *, size_t, const char *, va_list);
 279 #endif
 280
 281 #ifndef HAVE_USER_FROM_UID
 282 char *user_from_uid(uid_t, int);
 283 #endif
 284
 285 #ifndef HAVE_GROUP_FROM_GID
 286 char *group_from_gid(gid_t, int);
 287 #endif
 288
 289 #ifndef HAVE_TIMINGSAFE_BCMP
 290 int timingsafe_bcmp(const void *, const void *, size_t);
 291 #endif
 292
 293 #ifndef HAVE_BCRYPT_PBKDF
 294 int     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
 299 void explicit_bzero(void *p, size_t n);
 300 #endif
 301
 302 void *xmmap(size_t size);
 303 char *xcrypt(const char *password, const char *salt);
 304 char *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)
 330 void kludge_FD_SET(int, fd_set *);
 331 int 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 */