external/bsd/tmux/dist/compat.h

   1 /* Id */
   2
   3 /*
   4  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #ifndef COMPAT_H
  20 #define COMPAT_H
  21
  22 #ifndef __GNUC__
  23 #define __attribute__(a)
  24 #endif
  25
  26 #ifndef __dead
  27 #define __dead __attribute__ ((__noreturn__))
  28 #endif
  29 #ifndef __packed
  30 #define __packed __attribute__ ((__packed__))
  31 #endif
  32
  33 #ifndef ECHOPRT
  34 #define ECHOPRT 0
  35 #endif
  36
  37 #ifndef HAVE_BSD_TYPES
  38 typedef uint8_t u_int8_t;
  39 typedef uint16_t u_int16_t;
  40 typedef uint32_t u_int32_t;
  41 typedef uint64_t u_int64_t;
  42 #endif
  43
  44 #ifndef HAVE_PATHS_H
  45 #define _PATH_BSHELL    "/bin/sh"
  46 #define _PATH_TMP       "/tmp/"
  47 #define _PATH_DEVNULL   "/dev/null"
  48 #define _PATH_TTY       "/dev/tty"
  49 #define _PATH_DEV       "/dev/"
  50 #endif
  51
  52 #ifdef HAVE_QUEUE_H
  53 #include <sys/queue.h>
  54 #else
  55 #include "compat/queue.h"
  56 #endif
  57
  58 #ifdef HAVE_TREE_H
  59 #include <sys/tree.h>
  60 #else
  61 #include "compat/tree.h"
  62 #endif
  63
  64 #ifdef HAVE_BITSTRING_H
  65 #include <bitstring.h>
  66 #else
  67 #include "compat/bitstring.h"
  68 #endif
  69
  70 #ifdef HAVE_PATHS_H
  71 #include <paths.h>
  72 #endif
  73
  74 #ifdef HAVE_FORKPTY
  75 #ifdef HAVE_LIBUTIL_H
  76 #include <libutil.h>
  77 #endif
  78 #ifdef HAVE_PTY_H
  79 #include <pty.h>
  80 #endif
  81 #ifdef HAVE_UTIL_H
  82 #include <util.h>
  83 #endif
  84 #endif
  85
  86 #ifdef HAVE_VIS
  87 #include <vis.h>
  88 #else
  89 #include "compat/vis.h"
  90 #endif
  91
  92 #ifdef HAVE_IMSG
  93 #include <imsg.h>
  94 #else
  95 #include "compat/imsg.h"
  96 #endif
  97
  98 #ifdef HAVE_STDINT_H
  99 #include <stdint.h>
 100 #else
 101 #include <inttypes.h>
 102 #endif
 103
 104 #ifdef BROKEN_CMSG_FIRSTHDR
 105 #undef CMSG_FIRSTHDR
 106 #define CMSG_FIRSTHDR(mhdr) \
 107         ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
 108             (struct cmsghdr *)(mhdr)->msg_control :         \
 109             (struct cmsghdr *)NULL)
 110 #endif
 111
 112 #ifndef CMSG_ALIGN
 113 #ifdef _CMSG_DATA_ALIGN
 114 #define CMSG_ALIGN _CMSG_DATA_ALIGN
 115 #else
 116 #define CMSG_ALIGN(len) (((len) + sizeof(long) - 1) & ~(sizeof(long) - 1))
 117 #endif
 118 #endif
 119
 120 #ifndef CMSG_SPACE
 121 #define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len))
 122 #endif
 123
 124 #ifndef CMSG_LEN
 125 #define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
 126 #endif
 127
 128 #ifndef O_DIRECTORY
 129 #define O_DIRECTORY 0
 130 #endif
 131
 132 #ifndef INFTIM
 133 #define INFTIM -1
 134 #endif
 135
 136 #ifndef WAIT_ANY
 137 #define WAIT_ANY -1
 138 #endif
 139
 140 #ifndef SUN_LEN
 141 #define SUN_LEN(sun) (sizeof (sun)->sun_path)
 142 #endif
 143
 144 #ifndef timercmp
 145 #define timercmp(tvp, uvp, cmp)                                         \
 146         (((tvp)->tv_sec == (uvp)->tv_sec) ?                             \
 147             ((tvp)->tv_usec cmp (uvp)->tv_usec) :                       \
 148             ((tvp)->tv_sec cmp (uvp)->tv_sec))
 149 #endif
 150
 151 #ifndef timeradd
 152 #define timeradd(tvp, uvp, vvp)                                         \
 153         do {                                                            \
 154                 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;          \
 155                 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;       \
 156                 if ((vvp)->tv_usec >= 1000000) {                        \
 157                         (vvp)->tv_sec++;                                \
 158                         (vvp)->tv_usec -= 1000000;                      \
 159                 }                                                       \
 160         } while (0)
 161 #endif
 162
 163 #ifndef timersub
 164 #define timersub(tvp, uvp, vvp)                                         \
 165         do {                                                            \
 166                 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;          \
 167                 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;       \
 168                 if ((vvp)->tv_usec < 0) {                               \
 169                         (vvp)->tv_sec--;                                \
 170                         (vvp)->tv_usec += 1000000;                      \
 171                 }                                                       \
 172         } while (0)
 173 #endif
 174
 175 #ifndef TTY_NAME_MAX
 176 #define TTY_NAME_MAX 32
 177 #endif
 178
 179 #ifndef HAVE_BZERO
 180 #undef bzero
 181 #define bzero(buf, len) memset(buf, 0, len);
 182 #endif
 183
 184 #ifndef HAVE_CLOSEFROM
 185 /* closefrom.c */
 186 void    closefrom(int);
 187 #endif
 188
 189 #ifndef HAVE_STRCASESTR
 190 /* strcasestr.c */
 191 char            *strcasestr(const char *, const char *);
 192 #endif
 193
 194 #ifndef HAVE_STRSEP
 195 /* strsep.c */
 196 char            *strsep(char **, const char *);
 197 #endif
 198
 199 #ifndef HAVE_STRTONUM
 200 /* strtonum.c */
 201 long long        strtonum(const char *, long long, long long, const char **);
 202 #endif
 203
 204 #ifndef HAVE_STRLCPY
 205 /* strlcpy.c */
 206 size_t           strlcpy(char *, const char *, size_t);
 207 #endif
 208
 209 #ifndef HAVE_STRLCAT
 210 /* strlcat.c */
 211 size_t           strlcat(char *, const char *, size_t);
 212 #endif
 213
 214 #ifndef HAVE_DAEMON
 215 /* daemon.c */
 216 int              daemon(int, int);
 217 #endif
 218
 219 #ifndef HAVE_B64_NTOP
 220 /* b64_ntop.c */
 221 #undef b64_ntop /* for Cygwin */
 222 int              b64_ntop(const char *, size_t, char *, size_t);
 223 #endif
 224
 225 #ifndef HAVE_FORKPTY
 226 /* forkpty.c */
 227 #include <sys/ioctl.h>
 228 pid_t            forkpty(int *, char *, struct termios *, struct winsize *);
 229 #endif
 230
 231 #ifndef HAVE_ASPRINTF
 232 /* asprintf.c */
 233 int              asprintf(char **, const char *, ...);
 234 int              vasprintf(char **, const char *, va_list);
 235 #endif
 236
 237 #ifndef HAVE_FGETLN
 238 /* fgetln.c */
 239 char            *fgetln(FILE *, size_t *);
 240 #endif
 241
 242 #ifndef HAVE_SETENV
 243 /* setenv.c */
 244 int              setenv(const char *, const char *, int);
 245 int              unsetenv(const char *);
 246 #endif
 247
 248 #ifndef HAVE_CFMAKERAW
 249 /* cfmakeraw.c */
 250 void            cfmakeraw(struct termios *);
 251 #endif
 252
 253 #ifndef HAVE_OPENAT
 254 /* openat.c */
 255 #define AT_FDCWD -100
 256 int             openat(int, const char *, int, ...);
 257 #endif
 258
 259 #ifdef HAVE_GETOPT
 260 #include <getopt.h>
 261 #else
 262 /* getopt.c */
 263 extern int      BSDopterr;
 264 extern int      BSDoptind;
 265 extern int      BSDoptopt;
 266 extern int      BSDoptreset;
 267 extern char    *BSDoptarg;
 268 int     BSDgetopt(int, char *const *, const char *);
 269 #define getopt(ac, av, o)  BSDgetopt(ac, av, o)
 270 #define opterr             BSDopterr
 271 #define optind             BSDoptind
 272 #define optopt             BSDoptopt
 273 #define optreset           BSDoptreset
 274 #define optarg             BSDoptarg
 275 #endif
 276
 277 #endif /* COMPAT_H */