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 #endif
  72
  73 /* Since major is a function on SVR4, we can't just use `ifndef major'.  */
  74 #ifdef major                    /* Might be defined in sys/types.h.  */
  75 #define HAVE_MAJOR
  76 #endif
  77
  78 #if !defined(HAVE_MAJOR) && defined(MAJOR_IN_MKDEV)
  79 #include <sys/mkdev.h>
  80 #define HAVE_MAJOR
  81 #endif
  82
  83 #if !defined(HAVE_MAJOR) && defined(MAJOR_IN_SYSMACROS)
  84 #include <sys/sysmacros.h>
  85 #define HAVE_MAJOR
  86 #endif
  87
  88 #ifndef HAVE_MAJOR
  89 #define major(dev)  (((dev) >> 8) & 0xff)
  90 #define minor(dev)  ((dev) & 0xff)
  91 #define makedev(maj, min)  (((maj) << 8) | (min))
  92 #endif
  93 #undef HAVE_MAJOR
  94
  95 #if defined(STDC_HEADERS) || defined(USG)
  96 #include <string.h>
  97 #if !defined(__MSDOS__) && !defined(STDC_HEADERS)
  98 #include <memory.h>
  99 #endif
 100 #ifdef index
 101 #undef index
 102 #endif
 103 #ifdef rindex
 104 #undef rindex
 105 #endif
 106 #define index strchr
 107 #define rindex strrchr
 108 #define bcopy(s, d, n) memcpy(d, s, n)
 109 #define bzero(s, n) memset(s, 0, n)
 110 #define bcmp memcmp
 111 #else
 112 #include <strings.h>
 113 #endif
 114
 115 #if defined(STDC_HEADERS)
 116 #include <stdlib.h>
 117 #else
 118 char *malloc(), *realloc();
 119 char *getenv();
 120 #endif
 121
 122 #ifndef _POSIX_VERSION
 123 #ifdef __MSDOS__
 124 #include <io.h>
 125 #else                           /* !__MSDOS__ */
 126 off_t lseek();
 127 #endif                          /* !__MSDOS__ */
 128 char *getcwd();
 129 #endif /* !_POSIX_VERSION */
 130
 131 #ifndef NULL
 132 #define NULL 0
 133 #endif
 134
 135 #ifndef O_BINARY
 136 #define O_BINARY        0
 137 #endif
 138 #ifndef O_CREAT
 139 #define O_CREAT         0
 140 #endif
 141 #ifndef O_NDELAY
 142 #define O_NDELAY        0
 143 #endif
 144 #ifndef O_RDONLY
 145 #define O_RDONLY        0
 146 #endif
 147 #ifndef O_RDWR
 148 #define O_RDWR          2
 149 #endif
 150
 151 #include <sys/stat.h>
 152 #ifndef S_ISREG                 /* Doesn't have POSIX.1 stat stuff. */
 153 #define mode_t unsigned short
 154 #endif
 155 #if !defined(S_ISBLK) && defined(S_IFBLK)
 156 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
 157 #endif
 158 #if !defined(S_ISCHR) && defined(S_IFCHR)
 159 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
 160 #endif
 161 #if !defined(S_ISDIR) && defined(S_IFDIR)
 162 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
 163 #endif
 164 #if !defined(S_ISREG) && defined(S_IFREG)
 165 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 166 #endif
 167 #if !defined(S_ISFIFO) && defined(S_IFIFO)
 168 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
 169 #define mkfifo(path, mode) (mknod ((path), (mode) | S_IFIFO, 0))
 170 #endif
 171 #if !defined(S_ISLNK) && defined(S_IFLNK)
 172 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
 173 #endif
 174 #if !defined(S_ISSOCK) && defined(S_IFSOCK)
 175 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
 176 #endif
 177 #if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
 178 #define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
 179 #define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
 180 #endif
 181 #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
 182 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
 183 #endif
 184 #if !defined(S_ISCTG) && defined(S_IFCTG) /* contiguous file */
 185 #define S_ISCTG(m) (((m) & S_IFMT) == S_IFCTG)
 186 #endif
 187 #if !defined(S_ISVTX)
 188 #define S_ISVTX 0001000
 189 #endif