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 */ 337