493 lines
11 KiB
C
493 lines
11 KiB
C
/* System dependent definitions for GNU tar.
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Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif
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/* Declare alloca. AIX requires this to be the first thing in the file. */
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#if __GNUC__
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# define alloca __builtin_alloca
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#else
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# if HAVE_ALLOCA_H
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# include <alloca.h>
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# else
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# ifdef _AIX
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#pragma alloca
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# else
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# ifndef alloca
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char *alloca ();
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# endif
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# endif
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# endif
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#endif
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#include <sys/types.h>
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/* Declare a generic pointer type. */
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#if __STDC__ || defined(__TURBOC__)
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# define voidstar void *
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#else
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# define voidstar char *
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#endif
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/* Declare ISASCII. */
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#include <ctype.h>
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#if STDC_HEADERS
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# define ISASCII(Char) 1
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#else
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# ifdef isascii
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# define ISASCII(Char) isascii (Char)
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# else
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# if HAVE_ISASCII
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# define ISASCII(Char) isascii (Char)
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# else
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# define ISASCII(Char) 1
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# endif
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# endif
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#endif
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/* Declare string and memory handling routines. Take care that an ANSI
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string.h and pre-ANSI memory.h might conflict, and that memory.h and
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strings.h conflict on some systems. */
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#if STDC_HEADERS || HAVE_STRING_H
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# include <string.h>
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# if !STDC_HEADERS && HAVE_MEMORY_H
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# include <memory.h>
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# endif
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#else
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# include <strings.h>
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# ifndef strchr
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# define strchr index
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# endif
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# ifndef strrchr
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# define strrchr rindex
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# endif
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# ifndef memcpy
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# define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num)
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# endif
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# ifndef memcmp
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# define memcmp(Src1, Src2, Num) bcmp (Src1, Src2, Num)
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# endif
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#endif
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/* Declare errno. */
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#include <errno.h>
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#ifndef errno
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extern int errno;
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#endif
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/* Declare open parameters. */
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#if HAVE_FCNTL_H
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# include <fcntl.h>
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#else
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# include <sys/file.h>
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#endif
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/* Pick only one of the next three: */
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#ifndef O_RDONLY
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# define O_RDONLY 0 /* only allow read */
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#endif
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#ifndef O_WRONLY
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# define O_WRONLY 1 /* only allow write */
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#endif
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#ifndef O_RDWR
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# define O_RDWR 2 /* both are allowed */
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#endif
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/* The rest can be OR-ed in to the above: */
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#ifndef O_NDELAY
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# define O_NDELAY 4 /* don't block on opening devices */
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#endif
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#ifndef O_CREAT
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# define O_CREAT 8 /* create file if needed */
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#endif
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#ifndef O_EXCL
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# define O_EXCL 16 /* file cannot already exist */
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#endif
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#ifndef O_TRUNC
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# define O_TRUNC 32 /* truncate file on open */
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#endif
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#ifndef O_APPEND
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# define O_APPEND 64 /* always write at end of file */
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#endif
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/* MS-DOG forever, with my love! */
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#ifndef O_BINARY
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# define O_BINARY 0
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#endif
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/* Emulate System V 3-argument open call */
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#if EMUL_OPEN3
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# define open open3
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#endif
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/* Declare file status routines and bits. */
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#include <sys/stat.h>
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#ifndef S_ISLNK
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# define lstat stat
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#endif
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#if STAT_MACROS_BROKEN
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# undef S_ISBLK
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# undef S_ISCHR
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# undef S_ISDIR
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# undef S_ISFIFO
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# undef S_ISLNK
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# undef S_ISMPB
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# undef S_ISMPC
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# undef S_ISNWK
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# undef S_ISREG
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# undef S_ISSOCK
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#endif
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/* On MSDOS, there are missing things from <sys/stat.h>. */
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#if MSDOS
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# define S_ISUID 0
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# define S_ISGID 0
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# define S_ISVTX 0
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#endif
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#ifndef S_ISREG /* POSIX.1 stat stuff missing */
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# define mode_t unsigned short
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#endif
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#if !defined(S_ISBLK) && defined(S_IFBLK)
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# define S_ISBLK(Mode) (((Mode) & S_IFMT) == S_IFBLK)
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#endif
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#if !defined(S_ISCHR) && defined(S_IFCHR)
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# define S_ISCHR(Mode) (((Mode) & S_IFMT) == S_IFCHR)
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#endif
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#if !defined(S_ISDIR) && defined(S_IFDIR)
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# define S_ISDIR(Mode) (((Mode) & S_IFMT) == S_IFDIR)
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#endif
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#if !defined(S_ISREG) && defined(S_IFREG)
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# define S_ISREG(Mode) (((Mode) & S_IFMT) == S_IFREG)
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#endif
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#if !defined(S_ISFIFO) && defined(S_IFIFO)
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# define S_ISFIFO(Mode) (((Mode) & S_IFMT) == S_IFIFO)
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#endif
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#if !defined(S_ISLNK) && defined(S_IFLNK)
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# define S_ISLNK(Mode) (((Mode) & S_IFMT) == S_IFLNK)
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#endif
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#if !defined(S_ISSOCK) && defined(S_IFSOCK)
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# define S_ISSOCK(Mode) (((Mode) & S_IFMT) == S_IFSOCK)
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#endif
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#if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
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# define S_ISMPB(Mode) (((Mode) & S_IFMT) == S_IFMPB)
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# define S_ISMPC(Mode) (((Mode) & S_IFMT) == S_IFMPC)
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#endif
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#if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
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# define S_ISNWK(Mode) (((Mode) & S_IFMT) == S_IFNWK)
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#endif
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#if !HAVE_MKFIFO
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# define mkfifo(Path, Mode) (mknod (Path, (Mode) | S_IFIFO, 0))
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#endif
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#if !defined(S_ISCTG) && defined(S_IFCTG) /* contiguous file */
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# define S_ISCTG(Mode) (((Mode) & S_IFMT) == S_IFCTG)
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#endif
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#if !defined(S_ISVTX)
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# define S_ISVTX 0001000
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#endif
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#ifndef _POSIX_SOURCE
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# include <sys/param.h>
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#endif
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/* Include <unistd.h> before any preprocessor test of _POSIX_VERSION. */
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#if HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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/* Declare make device, major and minor. Since major is a function on
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SVR4, we have to resort to GOT_MAJOR instead of just testing if
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major is #define'd. */
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#if MAJOR_IN_MKDEV
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# include <sys/mkdev.h>
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# define GOT_MAJOR
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#endif
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#if MAJOR_IN_SYSMACROS
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# include <sys/sysmacros.h>
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# define GOT_MAJOR
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#endif
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/* Some <sys/types.h> defines the macros. */
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#ifdef major
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# define GOT_MAJOR
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#endif
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#ifndef GOT_MAJOR
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# if MSDOS
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# define major(Device) (Device)
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# define minor(Device) (Device)
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# define makedev(Major, Minor) (((Major) << 8) | (Minor))
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# define GOT_MAJOR
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# endif
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#endif
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/* For HP-UX before HP-UX 8, major/minor are not in <sys/sysmacros.h>. */
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#ifndef GOT_MAJOR
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# if defined(hpux) || defined(__hpux__) || defined(__hpux)
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# include <sys/mknod.h>
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# define GOT_MAJOR
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# endif
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#endif
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#ifndef GOT_MAJOR
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# define major(Device) (((Device) >> 8) & 0xff)
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# define minor(Device) ((Device) & 0xff)
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# define makedev(Major, Minor) (((Major) << 8) | (Minor))
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#endif
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#undef GOT_MAJOR
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/* Declare directory reading routines and structures. */
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#if __TURBOC__
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# include "msd_dir.h"
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# define NAMLEN(dirent) ((dirent)->d_namlen)
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#else
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# if HAVE_DIRENT_H
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# include <dirent.h>
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# define NAMLEN(dirent) (strlen((dirent)->d_name))
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# else
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# define dirent direct
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# define NAMLEN(dirent) ((dirent)->d_namlen)
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# if HAVE_SYS_NDIR_H
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# include <sys/ndir.h>
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# endif
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# if HAVE_SYS_DIR_H
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# include <sys/dir.h>
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# endif
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# if HAVE_NDIR_H
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# include <ndir.h>
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# endif
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# endif
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#endif
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/* Declare wait status. */
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#if HAVE_SYS_WAIT_H
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# include <sys/wait.h>
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#endif
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#if HAVE_UNION_WAIT
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# define WAIT_T union wait
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# ifndef WTERMSIG
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# define WTERMSIG(Status) ((Status).w_termsig)
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# endif
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# ifndef WCOREDUMP
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# define WCOREDUMP(Status) ((Status).w_coredump)
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# endif
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# ifndef WEXITSTATUS
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# define WEXITSTATUS(Status) ((Status).w_retcode)
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# endif
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#else
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# define WAIT_T int
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# ifndef WTERMSIG
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# define WTERMSIG(Status) ((Status) & 0x7f)
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# endif
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# ifndef WCOREDUMP
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# define WCOREDUMP(Status) ((Status) & 0x80)
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# endif
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# ifndef WEXITSTATUS
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# define WEXITSTATUS(Status) (((Status) >> 8) & 0xff)
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# endif
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#endif
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#ifndef WIFSTOPPED
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# define WIFSTOPPED(Status) (WTERMSIG(Status) == 0x7f)
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#endif
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#ifndef WIFSIGNALED
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# define WIFSIGNALED(Status) (WTERMSIG(Status) != 0)
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#endif
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#ifndef WIFEXITED
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# define WIFEXITED(Status) (WTERMSIG(Status) == 0)
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#endif
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/* FIXME: It is wrong to use BLOCKSIZE for buffers when the logical block
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size is greater than 512 bytes; so ST_BLKSIZE code below, in preparation
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for some cleanup in this area, later. */
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/* Get or fake the disk device blocksize. Usually defined by sys/param.h
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(if at all). */
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#if !defined(DEV_BSIZE) && defined(BSIZE)
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# define DEV_BSIZE BSIZE
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#endif
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#if !defined(DEV_BSIZE) && defined(BBSIZE) /* SGI */
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# define DEV_BSIZE BBSIZE
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#endif
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#ifndef DEV_BSIZE
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# define DEV_BSIZE 4096
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#endif
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/* Extract or fake data from a `struct stat'. ST_BLKSIZE gives the
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optimal I/O blocksize for the file, in bytes. Some systems, like
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Sequents, return st_blksize of 0 on pipes. */
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#if !HAVE_ST_BLKSIZE
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# define ST_BLKSIZE(Statbuf) DEV_BSIZE
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#else
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# define ST_BLKSIZE(Statbuf) \
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((Statbuf).st_blksize > 0 ? (Statbuf).st_blksize : DEV_BSIZE)
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#endif
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/* Extract or fake data from a `struct stat'. ST_NBLOCKS gives the
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number of 512-byte blocks in the file (including indirect blocks).
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fileblocks.c uses BSIZE. HP-UX counts st_blocks in 1024-byte units,
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this loses when mixing HP-UX and BSD filesystems with NFS. AIX PS/2
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counts st_blocks in 4K units. */
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#if !HAVE_ST_BLOCKS
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# if defined(_POSIX_SOURCE) || !defined(BSIZE)
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# define ST_NBLOCKS(Statbuf) (((Statbuf).st_size + 512 - 1) / 512)
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# else
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# define ST_NBLOCKS(Statbuf) (st_blocks ((Statbuf).st_size))
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# endif
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#else
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# if defined(hpux) || defined(__hpux__) || defined(__hpux)
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# define ST_NBLOCKS(Statbuf) ((Statbuf).st_blocks * 2)
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# else
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# if defined(_AIX) && defined(_I386)
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# define ST_NBLOCKS(Statbuf) ((Statbuf).st_blocks * 8)
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# else
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# define ST_NBLOCKS(Statbuf) ((Statbuf).st_blocks)
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# endif
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# endif
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#endif
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/* This is a real challenge to properly get MTIO* symbols :-(. ISC uses
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<sys/gentape.h>. SCO and BSDi uses <sys/tape.h>; BSDi also requires
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<sys/tprintf.h> and <sys/device.h> for defining tp_dev and tpr_t. It
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seems that the rest use <sys/mtio.h>, which itself requires other files,
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depending on systems. Pyramid defines _IOW in <sgtty.h>, for example. */
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#if HAVE_SYS_GENTAPE_H
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# include <sys/gentape.h>
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#else
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# if HAVE_SYS_TAPE_H
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# if HAVE_SYS_DEVICE_H
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# include <sys/device.h>
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# endif
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# if HAVE_SYS_BUF_H
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# include <sys/buf.h>
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# endif
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# if HAVE_SYS_TPRINTF_H
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# include <sys/tprintf.h>
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# endif
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# include <sys/tape.h>
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# else
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# if HAVE_SYS_MTIO_H
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# include <sys/ioctl.h>
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# if HAVE_SGTTY_H
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# include <sgtty.h>
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# endif
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# if HAVE_SYS_IO_TRIOCTL_H
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# include <sys/io/trioctl.h>
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# endif
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# include <sys/mtio.h>
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# endif
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# endif
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#endif
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/* Declare standard functions. */
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#if STDC_HEADERS
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# include <stdlib.h>
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#else
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voidstar malloc ();
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voidstar realloc ();
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# if HAVE_GETCWD
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char *getcwd ();
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# endif
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char *getenv ();
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#endif
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#include <stdio.h>
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#ifndef _POSIX_VERSION
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# if MSDOS
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# include <io.h>
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# else
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off_t lseek ();
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# endif
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#endif
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#include <pathmax.h>
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#if WITH_DMALLOC
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# undef HAVE_VALLOC
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# define DMALLOC_FUNC_CHECK
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# include <dmalloc.h>
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#endif
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/* Prototypes for external functions. */
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#ifndef PARAMS
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# if PROTOTYPES
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# define PARAMS(Args) Args
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# else
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# define PARAMS(Args) ()
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# endif
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#endif
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#if HAVE_LOCALE_H
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# include <locale.h>
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#endif
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#if !HAVE_SETLOCALE
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# define setlocale(Category, Locale)
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#endif
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#if ENABLE_NLS
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# include <libintl.h>
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# define _(Text) gettext (Text)
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#else
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# define bindtextdomain(Domain, Directory)
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# define textdomain(Domain)
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# define _(Text) Text
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#endif
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#define N_(Text) Text
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/* Library modules. */
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#include "error.h"
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#if !HAVE_STRSTR
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char *strstr PARAMS ((const char *, const char *));
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#endif
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#if HAVE_VALLOC
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# ifndef valloc
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voidstar valloc PARAMS ((size_t));
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# endif
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#else
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# define valloc(Size) malloc (Size)
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#endif
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voidstar xmalloc PARAMS ((size_t));
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voidstar xrealloc PARAMS ((voidstar, size_t));
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char *xstrdup PARAMS ((const char *));
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