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 "glob.h" 43 #include "readpassphrase.h" 44 #include "vis.h" 45 #include "getrrsetbyname.h" 46 #include "sha1.h" 47 #include "sha2.h" 48 #include "rmd160.h" 49 #include "md5.h" 50 #include "blf.h" 51 52 #ifndef HAVE_BASENAME 53 char *basename(const char *path); 54 #endif 55 56 #ifndef HAVE_BINDRESVPORT_SA 57 int bindresvport_sa(int sd, struct sockaddr *sa); 58 #endif 59 60 #ifndef HAVE_CLOSEFROM 61 void closefrom(int); 62 #endif 63 64 #ifndef HAVE_GETCWD 65 char *getcwd(char *pt, size_t size); 66 #endif 67 68 #ifndef HAVE_REALLOCARRAY 69 void *reallocarray(void *, size_t, size_t); 70 #endif 71 72 #if !defined(HAVE_REALPATH) || defined(BROKEN_REALPATH) 73 /* 74 * glibc's FORTIFY_SOURCE can redefine this and prevent us picking up the 75 * compat version. 76 */ 77 # ifdef BROKEN_REALPATH 78 # define realpath(x, y) _ssh_compat_realpath(x, y) 79 # endif 80 81 char *realpath(const char *path, char *resolved); 82 #endif 83 84 #ifndef HAVE_RRESVPORT_AF 85 int rresvport_af(int *alport, sa_family_t af); 86 #endif 87 88 #ifndef HAVE_STRLCPY 89 /* #include <sys/types.h> XXX Still needed? */ 90 size_t strlcpy(char *dst, const char *src, size_t siz); 91 #endif 92 93 #ifndef HAVE_STRLCAT 94 /* #include <sys/types.h> XXX Still needed? */ 95 size_t strlcat(char *dst, const char *src, size_t siz); 96 #endif 97 98 #ifndef HAVE_SETENV 99 int setenv(register const char *name, register const char *value, int rewrite); 100 #endif 101 102 #ifndef HAVE_STRMODE 103 void strmode(int mode, char *p); 104 #endif 105 106 #ifndef HAVE_STRPTIME 107 #include <time.h> 108 char *strptime(const char *buf, const char *fmt, struct tm *tm); 109 #endif 110 111 #if !defined(HAVE_MKDTEMP) || defined(HAVE_STRICT_MKSTEMP) 112 int mkstemps(char *path, int slen); 113 int mkstemp(char *path); 114 char *mkdtemp(char *path); 115 #endif 116 117 #ifndef HAVE_DAEMON 118 int daemon(int nochdir, int noclose); 119 #endif 120 121 #ifndef HAVE_DIRNAME 122 char *dirname(const char *path); 123 #endif 124 125 #ifndef HAVE_FMT_SCALED 126 #define FMT_SCALED_STRSIZE 7 127 int fmt_scaled(long long number, char *result); 128 #endif 129 130 #ifndef HAVE_SCAN_SCALED 131 int scan_scaled(char *, long long *); 132 #endif 133 134 #if defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA) 135 char *inet_ntoa(struct in_addr in); 136 #endif 137 138 #ifndef HAVE_INET_NTOP 139 const char *inet_ntop(int af, const void *src, char *dst, socklen_t size); 140 #endif 141 142 #ifndef HAVE_INET_ATON 143 int inet_aton(const char *cp, struct in_addr *addr); 144 #endif 145 146 #ifndef HAVE_STRSEP 147 char *strsep(char **stringp, const char *delim); 148 #endif 149 150 #ifndef HAVE_SETPROCTITLE 151 void setproctitle(const char *fmt, ...); 152 void compat_init_setproctitle(int argc, char *argv[]); 153 #endif 154 155 #ifndef HAVE_GETGROUPLIST 156 /* #include <grp.h> XXXX Still needed ? */ 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 /* #include <sys/types.h> XXX needed? For size_t */ 209 210 #ifndef HAVE_SNPRINTF 211 int snprintf(char *, size_t, SNPRINTF_CONST char *, ...); 212 #endif 213 214 #ifndef HAVE_STRTOLL 215 long long strtoll(const char *, char **, int); 216 #endif 217 218 #ifndef HAVE_STRTOUL 219 unsigned long strtoul(const char *, char **, int); 220 #endif 221 222 #ifndef HAVE_STRTOULL 223 unsigned long long strtoull(const char *, char **, int); 224 #endif 225 226 #ifndef HAVE_STRTONUM 227 long long strtonum(const char *, long long, long long, const char **); 228 #endif 229 230 /* multibyte character support */ 231 #ifndef HAVE_MBLEN 232 # define mblen(x, y) (1) 233 #endif 234 235 #if !defined(HAVE_VASPRINTF) || !defined(HAVE_VSNPRINTF) 236 # include <stdarg.h> 237 #endif 238 239 #ifndef HAVE_VASPRINTF 240 int vasprintf(char **, const char *, va_list); 241 #endif 242 243 #ifndef HAVE_VSNPRINTF 244 int vsnprintf(char *, size_t, const char *, va_list); 245 #endif 246 247 #ifndef HAVE_USER_FROM_UID 248 char *user_from_uid(uid_t, int); 249 #endif 250 251 #ifndef HAVE_GROUP_FROM_GID 252 char *group_from_gid(gid_t, int); 253 #endif 254 255 #ifndef HAVE_TIMINGSAFE_BCMP 256 int timingsafe_bcmp(const void *, const void *, size_t); 257 #endif 258 259 #ifndef HAVE_BCRYPT_PBKDF 260 int bcrypt_pbkdf(const char *, size_t, const u_int8_t *, size_t, 261 u_int8_t *, size_t, unsigned int); 262 #endif 263 264 #ifndef HAVE_EXPLICIT_BZERO 265 void explicit_bzero(void *p, size_t n); 266 #endif 267 268 void *xmmap(size_t size); 269 char *xcrypt(const char *password, const char *salt); 270 char *shadow_pw(struct passwd *pw); 271 272 /* rfc2553 socket API replacements */ 273 #include "fake-rfc2553.h" 274 275 /* Routines for a single OS platform */ 276 #include "bsd-cray.h" 277 #include "bsd-cygwin_util.h" 278 279 #include "port-aix.h" 280 #include "port-irix.h" 281 #include "port-linux.h" 282 #include "port-solaris.h" 283 #include "port-tun.h" 284 #include "port-uw.h" 285 286 /* _FORTIFY_SOURCE breaks FD_ISSET(n)/FD_SET(n) for n > FD_SETSIZE. Avoid. */ 287 #if defined(HAVE_FEATURES_H) && defined(_FORTIFY_SOURCE) 288 # include <features.h> 289 # if defined(__GNU_LIBRARY__) && defined(__GLIBC_PREREQ) 290 # if __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) 291 # include <sys/socket.h> /* Ensure include guard is defined */ 292 # undef FD_SET 293 # undef FD_ISSET 294 # define FD_SET(n, set) kludge_FD_SET(n, set) 295 # define FD_ISSET(n, set) kludge_FD_ISSET(n, set) 296 void kludge_FD_SET(int, fd_set *); 297 int kludge_FD_ISSET(int, fd_set *); 298 # endif /* __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) */ 299 # endif /* __GNU_LIBRARY__ && __GLIBC_PREREQ */ 300 #endif /* HAVE_FEATURES_H && _FORTIFY_SOURCE */ 301 302 #endif /* _OPENBSD_COMPAT_H */ 303