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 52 char *basename(const char *path); 53 #endif 54 55 #ifndef HAVE_BINDRESVPORT_SA 56 int bindresvport_sa(int sd, struct sockaddr *sa); 57 #endif 58 59 #ifndef HAVE_CLOSEFROM 60 void closefrom(int); 61 #endif 62 63 #ifndef HAVE_GETCWD 64 char *getcwd(char *pt, size_t size); 65 #endif 66 67 #ifndef HAVE_REALLOCARRAY 68 void *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 80 char *realpath(const char *path, char *resolved); 81 #endif 82 83 #ifndef HAVE_RRESVPORT_AF 84 int rresvport_af(int *alport, sa_family_t af); 85 #endif 86 87 #ifndef HAVE_STRLCPY 88 size_t strlcpy(char *dst, const char *src, size_t siz); 89 #endif 90 91 #ifndef HAVE_STRLCAT 92 size_t strlcat(char *dst, const char *src, size_t siz); 93 #endif 94 95 #ifndef HAVE_STRCASESTR 96 char *strcasestr(const char *, const char *); 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 int getgrouplist(const char *, gid_t, gid_t *, int *); 158 #endif 159 160 #if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET) 161 int 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> 168 int 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 179 int 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 187 unsigned int arc4random(void); 188 void arc4random_stir(void); 189 #endif /* !HAVE_ARC4RANDOM */ 190 191 #ifndef HAVE_ARC4RANDOM_BUF 192 void arc4random_buf(void *, size_t); 193 #endif 194 195 #ifndef HAVE_ARC4RANDOM_UNIFORM 196 u_int32_t arc4random_uniform(u_int32_t); 197 #endif 198 199 #ifndef HAVE_ASPRINTF 200 int asprintf(char **, const char *, ...); 201 #endif 202 203 #ifndef HAVE_OPENPTY 204 # include <sys/ioctl.h> /* for struct winsize */ 205 int openpty(int *, int *, char *, struct termios *, struct winsize *); 206 #endif /* HAVE_OPENPTY */ 207 208 #ifndef HAVE_SNPRINTF 209 int snprintf(char *, size_t, SNPRINTF_CONST char *, ...); 210 #endif 211 212 #ifndef HAVE_STRTOLL 213 long long strtoll(const char *, char **, int); 214 #endif 215 216 #ifndef HAVE_STRTOUL 217 unsigned long strtoul(const char *, char **, int); 218 #endif 219 220 #ifndef HAVE_STRTOULL 221 unsigned long long strtoull(const char *, char **, int); 222 #endif 223 224 #ifndef HAVE_STRTONUM 225 long 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 246 int 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 271 int vasprintf(char **, const char *, va_list); 272 #endif 273 274 #ifndef HAVE_VSNPRINTF 275 int vsnprintf(char *, size_t, const char *, va_list); 276 #endif 277 278 #ifndef HAVE_USER_FROM_UID 279 char *user_from_uid(uid_t, int); 280 #endif 281 282 #ifndef HAVE_GROUP_FROM_GID 283 char *group_from_gid(gid_t, int); 284 #endif 285 286 #ifndef HAVE_TIMINGSAFE_BCMP 287 int timingsafe_bcmp(const void *, const void *, size_t); 288 #endif 289 290 #ifndef HAVE_BCRYPT_PBKDF 291 int 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 296 void explicit_bzero(void *p, size_t n); 297 #endif 298 299 char *xcrypt(const char *password, const char *salt); 300 char *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) 326 void kludge_FD_SET(int, fd_set *); 327 int 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