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 52char *basename(const char *path); 53#endif 54 55#ifndef HAVE_BINDRESVPORT_SA 56int bindresvport_sa(int sd, struct sockaddr *sa); 57#endif 58 59#ifndef HAVE_CLOSEFROM 60void closefrom(int); 61#endif 62 63#ifndef HAVE_GETLINE 64ssize_t getline(char **, size_t *, FILE *); 65#endif 66 67#ifndef HAVE_GETPAGESIZE 68int getpagesize(void); 69#endif 70 71#ifndef HAVE_GETCWD 72char *getcwd(char *pt, size_t size); 73#endif 74 75#ifndef HAVE_REALLOCARRAY 76void *reallocarray(void *, size_t, size_t); 77#endif 78 79#ifndef HAVE_RECALLOCARRAY 80void *recallocarray(void *, size_t, size_t, size_t); 81#endif 82 83#if !defined(HAVE_REALPATH) || defined(BROKEN_REALPATH) 84/* 85 * glibc's FORTIFY_SOURCE can redefine this and prevent us picking up the 86 * compat version. 87 */ 88# ifdef BROKEN_REALPATH 89# define realpath(x, y) _ssh_compat_realpath(x, y) 90# endif 91 92char *realpath(const char *path, char *resolved); 93#endif 94 95#ifndef HAVE_RRESVPORT_AF 96int rresvport_af(int *alport, sa_family_t af); 97#endif 98 99#ifndef HAVE_STRLCPY 100size_t strlcpy(char *dst, const char *src, size_t siz); 101#endif 102 103#ifndef HAVE_STRLCAT 104size_t strlcat(char *dst, const char *src, size_t siz); 105#endif 106 107#ifndef HAVE_STRCASESTR 108char *strcasestr(const char *, const char *); 109#endif 110 111#ifndef HAVE_SETENV 112int setenv(register const char *name, register const char *value, int rewrite); 113#endif 114 115#ifndef HAVE_STRMODE 116void strmode(int mode, char *p); 117#endif 118 119#ifndef HAVE_STRPTIME 120#include <time.h> 121char *strptime(const char *buf, const char *fmt, struct tm *tm); 122#endif 123 124#if !defined(HAVE_MKDTEMP) || defined(HAVE_STRICT_MKSTEMP) 125int mkstemps(char *path, int slen); 126int mkstemp(char *path); 127char *mkdtemp(char *path); 128#endif 129 130#ifndef HAVE_DAEMON 131int daemon(int nochdir, int noclose); 132#endif 133 134#ifndef HAVE_DIRNAME 135char *dirname(const char *path); 136#endif 137 138#ifndef HAVE_FMT_SCALED 139#define FMT_SCALED_STRSIZE 7 140int fmt_scaled(long long number, char *result); 141#endif 142 143#ifndef HAVE_SCAN_SCALED 144int scan_scaled(char *, long long *); 145#endif 146 147#if defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA) 148char *inet_ntoa(struct in_addr in); 149#endif 150 151#ifndef HAVE_INET_NTOP 152const char *inet_ntop(int af, const void *src, char *dst, socklen_t size); 153#endif 154 155#ifndef HAVE_INET_ATON 156int inet_aton(const char *cp, struct in_addr *addr); 157#endif 158 159#ifndef HAVE_STRSEP 160char *strsep(char **stringp, const char *delim); 161#endif 162 163#ifndef HAVE_SETPROCTITLE 164void setproctitle(const char *fmt, ...); 165void compat_init_setproctitle(int argc, char *argv[]); 166#endif 167 168#ifndef HAVE_GETGROUPLIST 169int getgrouplist(const char *, gid_t, gid_t *, int *); 170#endif 171 172#if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET) 173int BSDgetopt(int argc, char * const *argv, const char *opts); 174#include "openbsd-compat/getopt.h" 175#endif 176 177#if ((defined(HAVE_DECL_READV) && HAVE_DECL_READV == 0) || \ 178 (defined(HAVE_DECL_WRITEV) && HAVE_DECL_WRITEV == 0)) 179# include <sys/types.h> 180# include <sys/uio.h> 181 182# if defined(HAVE_DECL_READV) && HAVE_DECL_READV == 0 183int readv(int, struct iovec *, int); 184# endif 185 186# if defined(HAVE_DECL_WRITEV) && HAVE_DECL_WRITEV == 0 187int writev(int, struct iovec *, int); 188# endif 189#endif 190 191/* Home grown routines */ 192#include "bsd-misc.h" 193#include "bsd-setres_id.h" 194#include "bsd-signal.h" 195#include "bsd-statvfs.h" 196#include "bsd-waitpid.h" 197#include "bsd-poll.h" 198 199#ifndef HAVE_GETPEEREID 200int getpeereid(int , uid_t *, gid_t *); 201#endif 202 203#ifdef HAVE_ARC4RANDOM 204# ifndef HAVE_ARC4RANDOM_STIR 205# define arc4random_stir() 206# endif 207#else 208unsigned int arc4random(void); 209void arc4random_stir(void); 210#endif /* !HAVE_ARC4RANDOM */ 211 212#ifndef HAVE_ARC4RANDOM_BUF 213void arc4random_buf(void *, size_t); 214#endif 215 216#ifndef HAVE_ARC4RANDOM_UNIFORM 217u_int32_t arc4random_uniform(u_int32_t); 218#endif 219 220#ifndef HAVE_ASPRINTF 221int asprintf(char **, const char *, ...); 222#endif 223 224#ifndef HAVE_OPENPTY 225# include <sys/ioctl.h> /* for struct winsize */ 226int openpty(int *, int *, char *, struct termios *, struct winsize *); 227#endif /* HAVE_OPENPTY */ 228 229#ifndef HAVE_SNPRINTF 230int snprintf(char *, size_t, SNPRINTF_CONST char *, ...); 231#endif 232 233#ifndef HAVE_STRTOLL 234long long strtoll(const char *, char **, int); 235#endif 236 237#ifndef HAVE_STRTOUL 238unsigned long strtoul(const char *, char **, int); 239#endif 240 241#ifndef HAVE_STRTOULL 242unsigned long long strtoull(const char *, char **, int); 243#endif 244 245#ifndef HAVE_STRTONUM 246long long strtonum(const char *, long long, long long, const char **); 247#endif 248 249/* multibyte character support */ 250#ifndef HAVE_MBLEN 251# define mblen(x, y) (1) 252#endif 253 254#ifndef HAVE_WCWIDTH 255# define wcwidth(x) (((x) >= 0x20 && (x) <= 0x7e) ? 1 : -1) 256/* force our no-op nl_langinfo and mbtowc */ 257# undef HAVE_NL_LANGINFO 258# undef HAVE_MBTOWC 259# undef HAVE_LANGINFO_H 260#endif 261 262#ifndef HAVE_NL_LANGINFO 263# define nl_langinfo(x) "" 264#endif 265 266#ifndef HAVE_MBTOWC 267int mbtowc(wchar_t *, const char*, size_t); 268#endif 269 270#if !defined(HAVE_VASPRINTF) || !defined(HAVE_VSNPRINTF) 271# include <stdarg.h> 272#endif 273 274/* 275 * Some platforms unconditionally undefine va_copy() so we define VA_COPY() 276 * instead. This is known to be the case on at least some configurations of 277 * AIX with the xlc compiler. 278 */ 279#ifndef VA_COPY 280# ifdef HAVE_VA_COPY 281# define VA_COPY(dest, src) va_copy(dest, src) 282# else 283# ifdef HAVE___VA_COPY 284# define VA_COPY(dest, src) __va_copy(dest, src) 285# else 286# define VA_COPY(dest, src) (dest) = (src) 287# endif 288# endif 289#endif 290 291#ifndef HAVE_VASPRINTF 292int vasprintf(char **, const char *, va_list); 293#endif 294 295#ifndef HAVE_VSNPRINTF 296int vsnprintf(char *, size_t, const char *, va_list); 297#endif 298 299#ifndef HAVE_USER_FROM_UID 300char *user_from_uid(uid_t, int); 301#endif 302 303#ifndef HAVE_GROUP_FROM_GID 304char *group_from_gid(gid_t, int); 305#endif 306 307#ifndef HAVE_TIMINGSAFE_BCMP 308int timingsafe_bcmp(const void *, const void *, size_t); 309#endif 310 311#ifndef HAVE_BCRYPT_PBKDF 312int bcrypt_pbkdf(const char *, size_t, const u_int8_t *, size_t, 313 u_int8_t *, size_t, unsigned int); 314#endif 315 316#ifndef HAVE_EXPLICIT_BZERO 317void explicit_bzero(void *p, size_t n); 318#endif 319 320#ifndef HAVE_FREEZERO 321void freezero(void *, size_t); 322#endif 323 324char *xcrypt(const char *password, const char *salt); 325char *shadow_pw(struct passwd *pw); 326 327/* rfc2553 socket API replacements */ 328#include "fake-rfc2553.h" 329 330/* Routines for a single OS platform */ 331#include "bsd-cygwin_util.h" 332 333#include "port-aix.h" 334#include "port-irix.h" 335#include "port-linux.h" 336#include "port-solaris.h" 337#include "port-net.h" 338#include "port-uw.h" 339 340/* _FORTIFY_SOURCE breaks FD_ISSET(n)/FD_SET(n) for n > FD_SETSIZE. Avoid. */ 341#if defined(HAVE_FEATURES_H) && defined(_FORTIFY_SOURCE) 342# include <features.h> 343# if defined(__GNU_LIBRARY__) && defined(__GLIBC_PREREQ) 344# if __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) 345# include <sys/socket.h> /* Ensure include guard is defined */ 346# undef FD_SET 347# undef FD_ISSET 348# define FD_SET(n, set) kludge_FD_SET(n, set) 349# define FD_ISSET(n, set) kludge_FD_ISSET(n, set) 350void kludge_FD_SET(int, fd_set *); 351int kludge_FD_ISSET(int, fd_set *); 352# endif /* __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) */ 353# endif /* __GNU_LIBRARY__ && __GLIBC_PREREQ */ 354#endif /* HAVE_FEATURES_H && _FORTIFY_SOURCE */ 355 356#endif /* _OPENBSD_COMPAT_H */ 357