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 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 /* #include <sys/types.h> XXX Still needed? */ 89 size_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? */ 94 size_t strlcat(char *dst, const char *src, size_t siz); 95 #endif 96 97 #ifndef HAVE_SETENV 98 int setenv(register const char *name, register const char *value, int rewrite); 99 #endif 100 101 #ifndef HAVE_STRMODE 102 void strmode(int mode, char *p); 103 #endif 104 105 #ifndef HAVE_STRPTIME 106 #include <time.h> 107 char *strptime(const char *buf, const char *fmt, struct tm *tm); 108 #endif 109 110 #if !defined(HAVE_MKDTEMP) || defined(HAVE_STRICT_MKSTEMP) 111 int mkstemps(char *path, int slen); 112 int mkstemp(char *path); 113 char *mkdtemp(char *path); 114 #endif 115 116 #ifndef HAVE_DAEMON 117 int daemon(int nochdir, int noclose); 118 #endif 119 120 #ifndef HAVE_DIRNAME 121 char *dirname(const char *path); 122 #endif 123 124 #ifndef HAVE_FMT_SCALED 125 #define FMT_SCALED_STRSIZE 7 126 int fmt_scaled(long long number, char *result); 127 #endif 128 129 #ifndef HAVE_SCAN_SCALED 130 int scan_scaled(char *, long long *); 131 #endif 132 133 #if defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA) 134 char *inet_ntoa(struct in_addr in); 135 #endif 136 137 #ifndef HAVE_INET_NTOP 138 const char *inet_ntop(int af, const void *src, char *dst, socklen_t size); 139 #endif 140 141 #ifndef HAVE_INET_ATON 142 int inet_aton(const char *cp, struct in_addr *addr); 143 #endif 144 145 #ifndef HAVE_STRSEP 146 char *strsep(char **stringp, const char *delim); 147 #endif 148 149 #ifndef HAVE_SETPROCTITLE 150 void setproctitle(const char *fmt, ...); 151 void compat_init_setproctitle(int argc, char *argv[]); 152 #endif 153 154 #ifndef HAVE_GETGROUPLIST 155 /* #include <grp.h> XXXX Still needed ? */ 156 int getgrouplist(const char *, gid_t, gid_t *, int *); 157 #endif 158 159 #if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET) 160 int 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> 167 int 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 178 int 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 186 unsigned int arc4random(void); 187 void arc4random_stir(void); 188 #endif /* !HAVE_ARC4RANDOM */ 189 190 #ifndef HAVE_ARC4RANDOM_BUF 191 void arc4random_buf(void *, size_t); 192 #endif 193 194 #ifndef HAVE_ARC4RANDOM_UNIFORM 195 u_int32_t arc4random_uniform(u_int32_t); 196 #endif 197 198 #ifndef HAVE_ASPRINTF 199 int asprintf(char **, const char *, ...); 200 #endif 201 202 #ifndef HAVE_OPENPTY 203 # include <sys/ioctl.h> /* for struct winsize */ 204 int 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 210 int snprintf(char *, size_t, SNPRINTF_CONST char *, ...); 211 #endif 212 213 #ifndef HAVE_STRTOLL 214 long long strtoll(const char *, char **, int); 215 #endif 216 217 #ifndef HAVE_STRTOUL 218 unsigned long strtoul(const char *, char **, int); 219 #endif 220 221 #ifndef HAVE_STRTOULL 222 unsigned long long strtoull(const char *, char **, int); 223 #endif 224 225 #ifndef HAVE_STRTONUM 226 long 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 239 int vasprintf(char **, const char *, va_list); 240 #endif 241 242 #ifndef HAVE_VSNPRINTF 243 int vsnprintf(char *, size_t, const char *, va_list); 244 #endif 245 246 #ifndef HAVE_USER_FROM_UID 247 char *user_from_uid(uid_t, int); 248 #endif 249 250 #ifndef HAVE_GROUP_FROM_GID 251 char *group_from_gid(gid_t, int); 252 #endif 253 254 #ifndef HAVE_TIMINGSAFE_BCMP 255 int timingsafe_bcmp(const void *, const void *, size_t); 256 #endif 257 258 #ifndef HAVE_BCRYPT_PBKDF 259 int 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 264 void explicit_bzero(void *p, size_t n); 265 #endif 266 267 void *xmmap(size_t size); 268 char *xcrypt(const char *password, const char *salt); 269 char *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) 295 void kludge_FD_SET(int, fd_set *); 296 int 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