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

   1 /* Portability declarations.  Requires sys/types.h.
   2    Copyright (C) 1988 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 #include "pathmax.h"
  21
  22 #ifdef __GNUC__
  23 #define alloca __builtin_alloca
  24 #endif
  25
  26 #ifdef _POSIX_VERSION
  27 #include <sys/wait.h>
  28 #else /* !_POSIX_VERSION */
  29 #define WIFSTOPPED(w) (((w) & 0xff) == 0x7f)
  30 #define WIFSIGNALED(w) (((w) & 0xff) != 0x7f && ((w) & 0xff) != 0)
  31 #define WIFEXITED(w) (((w) & 0xff) == 0)
  32
  33 #define WSTOPSIG(w) (((w) >> 8) & 0xff)
  34 #define WTERMSIG(w) ((w) & 0x7f)
  35 #define WEXITSTATUS(w) (((w) >> 8) & 0xff)
  36 #endif /* _POSIX_VERSION */
  37
  38 /* nonstandard */
  39 #ifndef WIFCOREDUMPED
  40 #define WIFCOREDUMPED(w) (((w) & 0x80) != 0)
  41 #endif
  42
  43 #ifdef __MSDOS__
  44 /* missing things from sys/stat.h */
  45 #define S_ISUID         0
  46 #define S_ISGID         0
  47 #define S_ISVTX         0
  48
  49 /* device stuff */
  50 #define makedev(ma, mi)         ((ma << 8) | mi)
  51 #define major(dev)              (dev)
  52 #define minor(dev)              (dev)
  53 typedef long off_t;
  54 #endif  /* __MSDOS__ */
  55
  56 #if defined(__STDC__) || defined(__TURBOC__)
  57 #define PTR void *
  58 #else
  59 #define PTR char *
  60 #define const
  61 #endif
  62
  63 /* Since major is a function on SVR4, we can't just use `ifndef major'.  */
  64 #ifdef major                    /* Might be defined in sys/types.h.  */
  65 #define HAVE_MAJOR
  66 #endif
  67
  68 #if !defined(HAVE_MAJOR) && defined(MAJOR_IN_MKDEV)
  69 #include <sys/mkdev.h>
  70 #define HAVE_MAJOR
  71 #endif
  72
  73 #if !defined(HAVE_MAJOR) && defined(MAJOR_IN_SYSMACROS)
  74 #include <sys/sysmacros.h>
  75 #define HAVE_MAJOR
  76 #endif
  77
  78 #ifndef HAVE_MAJOR
  79 #define major(dev)  (((dev) >> 8) & 0xff)
  80 #define minor(dev)  ((dev) & 0xff)
  81 #define makedev(maj, min)  (((maj) << 8) | (min))
  82 #endif
  83 #undef HAVE_MAJOR
  84
  85 #if defined(STDC_HEADERS) || defined(USG)
  86 #include <string.h>
  87 #if !defined(__MSDOS__) && !defined(STDC_HEADERS)
  88 #include <memory.h>
  89 #endif
  90 #define index strchr
  91 #define rindex strrchr
  92 #define bcopy(s, d, n) memcpy(d, s, n)
  93 #define bzero(s, n) memset(s, 0, n)
  94 #define bcmp memcmp
  95 #else
  96 #include <strings.h>
  97 #endif
  98
  99 #if defined(STDC_HEADERS)
 100 #include <stdlib.h>
 101 #else
 102 char *malloc(), *realloc();
 103 char *getenv();
 104 #endif
 105
 106 #ifndef _POSIX_VERSION
 107 #ifdef __MSDOS__
 108 #include <io.h>
 109 #else                           /* !__MSDOS__ */
 110 off_t lseek();
 111 #endif                          /* !__MSDOS__ */
 112 char *getcwd();
 113 #endif /* !_POSIX_VERSION */
 114
 115 #ifndef NULL
 116 #define NULL 0
 117 #endif
 118
 119 #ifndef O_BINARY
 120 #define O_BINARY        0
 121 #endif
 122 #ifndef O_CREAT
 123 #define O_CREAT         0
 124 #endif
 125 #ifndef O_NDELAY
 126 #define O_NDELAY        0
 127 #endif
 128 #ifndef O_RDONLY
 129 #define O_RDONLY        0
 130 #endif
 131 #ifndef O_RDWR
 132 #define O_RDWR          2
 133 #endif
 134
 135 #include <sys/stat.h>
 136 #ifndef S_ISREG                 /* Doesn't have POSIX.1 stat stuff. */
 137 #define mode_t unsigned short
 138 #endif
 139 #if !defined(S_ISBLK) && defined(S_IFBLK)
 140 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
 141 #endif
 142 #if !defined(S_ISCHR) && defined(S_IFCHR)
 143 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
 144 #endif
 145 #if !defined(S_ISDIR) && defined(S_IFDIR)
 146 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
 147 #endif
 148 #if !defined(S_ISREG) && defined(S_IFREG)
 149 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 150 #endif
 151 #if !defined(S_ISFIFO) && defined(S_IFIFO)
 152 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
 153 #define mkfifo(path, mode) (mknod ((path), (mode) | S_IFIFO, 0))
 154 #endif
 155 #if !defined(S_ISLNK) && defined(S_IFLNK)
 156 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
 157 #endif
 158 #if !defined(S_ISSOCK) && defined(S_IFSOCK)
 159 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
 160 #endif
 161 #if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
 162 #define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
 163 #define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
 164 #endif
 165 #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
 166 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
 167 #endif
 168 #if !defined(S_ISCTG) && defined(S_IFCTG) /* contiguous file */
 169 #define S_ISCTG(m) (((m) & S_IFMT) == S_IFCTG)
 170 #endif
 171 #if !defined(S_ISVTX)
 172 #define S_ISVTX 0001000
 173 #endif