Dogcows Code - chaz/tar/blob - src/port.h

   1 /* Portability declarations.  Requires sys/types.h.
   2    Copyright (C) 1988, 1992 Free Software Foundation
   3
   4 This file is part of GNU Tar.
   5
   6 GNU Tar is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Tar is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Tar; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 /* AIX requires this to be the first thing in the file. */
  21 #ifdef __GNUC__
  22 #define alloca __builtin_alloca
  23 #else /* not __GNUC__ */
  24 #if HAVE_ALLOCA_H
  25 #include <alloca.h>
  26 #else /* not HAVE_ALLOCA_H */
  27 #ifdef _AIX
  28  #pragma alloca
  29 #else /* not _AIX */
  30 char *alloca ();
  31 #endif /* not _AIX */
  32 #endif /* not HAVE_ALLOCA_H */
  33 #endif /* not __GNUC__ */
  34
  35 #include "pathmax.h"
  36
  37 #ifdef _POSIX_VERSION
  38 #include <sys/wait.h>
  39 #else /* !_POSIX_VERSION */
  40 #define WIFSTOPPED(w) (((w) & 0xff) == 0x7f)
  41 #define WIFSIGNALED(w) (((w) & 0xff) != 0x7f && ((w) & 0xff) != 0)
  42 #define WIFEXITED(w) (((w) & 0xff) == 0)
  43
  44 #define WSTOPSIG(w) (((w) >> 8) & 0xff)
  45 #define WTERMSIG(w) ((w) & 0x7f)
  46 #define WEXITSTATUS(w) (((w) >> 8) & 0xff)
  47 #endif /* _POSIX_VERSION */
  48
  49 /* nonstandard */
  50 #ifndef WIFCOREDUMPED
  51 #define WIFCOREDUMPED(w) (((w) & 0x80) != 0)
  52 #endif
  53
  54 #ifdef __MSDOS__
  55 /* missing things from sys/stat.h */
  56 #define S_ISUID         0
  57 #define S_ISGID         0
  58 #define S_ISVTX         0
  59
  60 /* device stuff */
  61 #define makedev(ma, mi)         ((ma << 8) | mi)
  62 #define major(dev)              (dev)
  63 #define minor(dev)              (dev)
  64 typedef long off_t;
  65 #endif /* __MSDOS__ */
  66
  67 #if defined(__STDC__) || defined(__TURBOC__)
  68 #define PTR void *
  69 #else
  70 #define PTR char *
  71 #define const
  72 #endif
  73
  74 /* Since major is a function on SVR4, we can't just use `ifndef major'.  */
  75 #ifdef major                    /* Might be defined in sys/types.h.  */
  76 #define HAVE_MAJOR
  77 #endif
  78
  79 #if !defined(HAVE_MAJOR) && defined(MAJOR_IN_MKDEV)
  80 #include <sys/mkdev.h>
  81 #define HAVE_MAJOR
  82 #endif
  83
  84 #if !defined(HAVE_MAJOR) && defined(MAJOR_IN_SYSMACROS)
  85 #include <sys/sysmacros.h>
  86 #define HAVE_MAJOR
  87 #endif
  88
  89 #ifndef HAVE_MAJOR
  90 #define major(dev)  (((dev) >> 8) & 0xff)
  91 #define minor(dev)  ((dev) & 0xff)
  92 #define makedev(maj, min)  (((maj) << 8) | (min))
  93 #endif
  94 #undef HAVE_MAJOR
  95
  96 #if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
  97 #include <string.h>
  98 #if !defined(__MSDOS__) && !defined(STDC_HEADERS)
  99 #include <memory.h>
 100 #endif
 101 #ifdef index
 102 #undef index
 103 #endif
 104 #ifdef rindex
 105 #undef rindex
 106 #endif
 107 #define index strchr
 108 #define rindex strrchr
 109 #define bcopy(s, d, n) memcpy(d, s, n)
 110 #define bzero(s, n) memset(s, 0, n)
 111 #define bcmp memcmp
 112 #else
 113 #include <strings.h>
 114 #endif
 115
 116 #if defined(STDC_HEADERS)
 117 #include <stdlib.h>
 118 #else
 119 char *malloc (), *realloc ();
 120 char *getenv ();
 121 #endif
 122
 123 #ifndef _POSIX_VERSION
 124 #ifdef __MSDOS__
 125 #include <io.h>
 126 #else /* !__MSDOS__ */
 127 off_t lseek ();
 128 #endif /* !__MSDOS__ */
 129 char *getcwd ();
 130 #endif /* !_POSIX_VERSION */
 131
 132 #ifndef NULL
 133 #define NULL 0
 134 #endif
 135
 136 #ifndef O_BINARY
 137 #define O_BINARY        0
 138 #endif
 139 #ifndef O_CREAT
 140 #define O_CREAT         0
 141 #endif
 142 #ifndef O_NDELAY
 143 #define O_NDELAY        0
 144 #endif
 145 #ifndef O_RDONLY
 146 #define O_RDONLY        0
 147 #endif
 148 #ifndef O_RDWR
 149 #define O_RDWR          2
 150 #endif
 151
 152 #include <sys/stat.h>
 153 #ifndef S_ISREG                 /* Doesn't have POSIX.1 stat stuff. */
 154 #define mode_t unsigned short
 155 #endif
 156 #if !defined(S_ISBLK) && defined(S_IFBLK)
 157 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
 158 #endif
 159 #if !defined(S_ISCHR) && defined(S_IFCHR)
 160 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
 161 #endif
 162 #if !defined(S_ISDIR) && defined(S_IFDIR)
 163 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
 164 #endif
 165 #if !defined(S_ISREG) && defined(S_IFREG)
 166 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 167 #endif
 168 #if !defined(S_ISFIFO) && defined(S_IFIFO)
 169 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
 170 #define mkfifo(path, mode) (mknod ((path), (mode) | S_IFIFO, 0))
 171 #endif
 172 #if !defined(S_ISLNK) && defined(S_IFLNK)
 173 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
 174 #endif
 175 #if !defined(S_ISSOCK) && defined(S_IFSOCK)
 176 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
 177 #endif
 178 #if !defined(S_ISMPB) && defined(S_IFMPB)       /* V7 */
 179 #define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
 180 #define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
 181 #endif
 182 #if !defined(S_ISNWK) && defined(S_IFNWK)       /* HP/UX */
 183 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
 184 #endif
 185 #if !defined(S_ISCTG) && defined(S_IFCTG)       /* contiguous file */
 186 #define S_ISCTG(m) (((m) & S_IFMT) == S_IFCTG)
 187 #endif
 188 #if !defined(S_ISVTX)
 189 #define S_ISVTX 0001000
 190 #endif
 191
 192 #ifdef __MSDOS__
 193 #include "msd_dir.h"
 194 #define NLENGTH(direct) ((direct)->d_namlen)
 195
 196 #else /* not __MSDOS__ */
 197
 198 #if defined(DIRENT) || defined(_POSIX_VERSION)
 199 #include <dirent.h>
 200 #define NLENGTH(direct) (strlen((direct)->d_name))
 201 #else /* not (DIRENT or _POSIX_VERSION) */
 202 #define dirent direct
 203 #define NLENGTH(direct) ((direct)->d_namlen)
 204 #ifdef SYSNDIR
 205 #include <sys/ndir.h>
 206 #endif /* SYSNDIR */
 207 #ifdef SYSDIR
 208 #include <sys/dir.h>
 209 #endif /* SYSDIR */
 210 #ifdef NDIR
 211 #include <ndir.h>
 212 #endif /* NDIR */
 213 #endif /* DIRENT or _POSIX_VERSION */
 214
 215 #endif /* not __MSDOS__ */