From d4fdeab4db0d0e699c8fbbb07f12c4e1f64d0f94 Mon Sep 17 00:00:00 2001 From: Lorry Tar Creator Date: Mon, 16 May 2016 09:22:21 +0000 Subject: tar-1.29 --- lib/system.h | 490 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 490 insertions(+) create mode 100644 lib/system.h (limited to 'lib/system.h') diff --git a/lib/system.h b/lib/system.h new file mode 100644 index 0000000..e7f531c --- /dev/null +++ b/lib/system.h @@ -0,0 +1,490 @@ +/* System dependent definitions for GNU tar. + + Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, + 2004, 2005, 2006, 2007 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#if HAVE_CONFIG_H +# include +#endif + +#include + +#ifndef __attribute__ +/* This feature is available in gcc versions 2.5 and later. */ +# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__ +# define __attribute__(spec) /* empty */ +# endif +#endif + +#include +#include + +/* IN_CTYPE_DOMAIN (C) is nonzero if the unsigned char C can safely be given + as an argument to macros like `isspace'. */ +#if STDC_HEADERS +# define IN_CTYPE_DOMAIN(c) 1 +#else +# define IN_CTYPE_DOMAIN(c) ((unsigned) (c) <= 0177) +#endif + +#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9) +#define ISODIGIT(c) ((unsigned) (c) - '0' <= 7) +#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c)) +#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c)) + +/* Declare string and memory handling routines. Take care that an ANSI + string.h and pre-ANSI memory.h might conflict, and that memory.h and + strings.h conflict on some systems. */ + +#if STDC_HEADERS || HAVE_STRING_H +# include +# if !STDC_HEADERS && HAVE_MEMORY_H +# include +# endif +#else +# include +# ifndef strchr +# define strchr index +# endif +# ifndef strrchr +# define strrchr rindex +# endif +# ifndef memcpy +# define memcpy(d, s, n) bcopy ((char const *) (s), (char *) (d), n) +# endif +# ifndef memcmp +# define memcmp(a, b, n) bcmp ((char const *) (a), (char const *) (b), n) +# endif +#endif + +/* Declare errno. */ + +#include +#ifndef errno +extern int errno; +#endif + +/* Declare open parameters. */ + +#if HAVE_FCNTL_H +# include +#else +# include +#endif + /* Pick only one of the next three: */ +#ifndef O_RDONLY +# define O_RDONLY 0 /* only allow read */ +#endif +#ifndef O_WRONLY +# define O_WRONLY 1 /* only allow write */ +#endif +#ifndef O_RDWR +# define O_RDWR 2 /* both are allowed */ +#endif +#ifndef O_ACCMODE +# define O_ACCMODE (O_RDONLY | O_RDWR | O_WRONLY) +#endif + /* The rest can be OR-ed in to the above: */ +#ifndef O_CREAT +# define O_CREAT 8 /* create file if needed */ +#endif +#ifndef O_EXCL +# define O_EXCL 16 /* file cannot already exist */ +#endif +#ifndef O_TRUNC +# define O_TRUNC 32 /* truncate file on open */ +#endif + +#ifndef O_BINARY +# define O_BINARY 0 +#endif +#ifndef O_DIRECTORY +# define O_DIRECTORY 0 +#endif +#ifndef O_NOATIME +# define O_NOATIME 0 +#endif +#ifndef O_NONBLOCK +# define O_NONBLOCK 0 +#endif + +/* Declare file status routines and bits. */ + +#include + +#if !HAVE_LSTAT && !defined lstat +# define lstat stat +#endif + +#if STX_HIDDEN && !_LARGE_FILES /* AIX */ +# ifdef stat +# undef stat +# endif +# define stat(file_name, buf) statx (file_name, buf, STATSIZE, STX_HIDDEN) +# ifdef lstat +# undef lstat +# endif +# define lstat(file_name, buf) statx (file_name, buf, STATSIZE, STX_HIDDEN | STX_LINK) +#endif + +#if STAT_MACROS_BROKEN +# undef S_ISBLK +# undef S_ISCHR +# undef S_ISCTG +# undef S_ISDIR +# undef S_ISFIFO +# undef S_ISLNK +# undef S_ISREG +# undef S_ISSOCK +#endif + +/* On MSDOS, there are missing things from . */ +#if MSDOS +# define S_ISUID 0 +# define S_ISGID 0 +# define S_ISVTX 0 +#endif + +#ifndef S_ISDIR +# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) +#endif +#ifndef S_ISREG +# define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG) +#endif + +#ifndef S_ISBLK +# ifdef S_IFBLK +# define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK) +# else +# define S_ISBLK(mode) 0 +# endif +#endif +#ifndef S_ISCHR +# ifdef S_IFCHR +# define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR) +# else +# define S_ISCHR(mode) 0 +# endif +#endif +#ifndef S_ISCTG +# ifdef S_IFCTG +# define S_ISCTG(mode) (((mode) & S_IFMT) == S_IFCTG) +# else +# define S_ISCTG(mode) 0 +# endif +#endif +#ifndef S_ISDOOR +# define S_ISDOOR(mode) 0 +#endif +#ifndef S_ISFIFO +# ifdef S_IFIFO +# define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO) +# else +# define S_ISFIFO(mode) 0 +# endif +#endif +#ifndef S_ISLNK +# ifdef S_IFLNK +# define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK) +# else +# define S_ISLNK(mode) 0 +# endif +#endif +#ifndef S_ISSOCK +# ifdef S_IFSOCK +# define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK) +# else +# define S_ISSOCK(mode) 0 +# endif +#endif + +#if !HAVE_MKFIFO && !defined mkfifo && defined S_IFIFO +# define mkfifo(file_name, mode) (mknod (file_name, (mode) | S_IFIFO, 0)) +#endif + +#ifndef S_ISUID +# define S_ISUID 0004000 +#endif +#ifndef S_ISGID +# define S_ISGID 0002000 +#endif +#ifndef S_ISVTX +# define S_ISVTX 0001000 +#endif +#ifndef S_IRUSR +# define S_IRUSR 0000400 +#endif +#ifndef S_IWUSR +# define S_IWUSR 0000200 +#endif +#ifndef S_IXUSR +# define S_IXUSR 0000100 +#endif +#ifndef S_IRGRP +# define S_IRGRP 0000040 +#endif +#ifndef S_IWGRP +# define S_IWGRP 0000020 +#endif +#ifndef S_IXGRP +# define S_IXGRP 0000010 +#endif +#ifndef S_IROTH +# define S_IROTH 0000004 +#endif +#ifndef S_IWOTH +# define S_IWOTH 0000002 +#endif +#ifndef S_IXOTH +# define S_IXOTH 0000001 +#endif + +#define MODE_WXUSR (S_IWUSR | S_IXUSR) +#define MODE_R (S_IRUSR | S_IRGRP | S_IROTH) +#define MODE_RW (S_IWUSR | S_IWGRP | S_IWOTH | MODE_R) +#define MODE_RWX (S_IXUSR | S_IXGRP | S_IXOTH | MODE_RW) +#define MODE_ALL (S_ISUID | S_ISGID | S_ISVTX | MODE_RWX) + +/* Include before any preprocessor test of _POSIX_VERSION. */ +#include + +#ifndef SEEK_SET +# define SEEK_SET 0 +#endif +#ifndef SEEK_CUR +# define SEEK_CUR 1 +#endif +#ifndef SEEK_END +# define SEEK_END 2 +#endif + +#ifndef STDIN_FILENO +# define STDIN_FILENO 0 +#endif +#ifndef STDOUT_FILENO +# define STDOUT_FILENO 1 +#endif +#ifndef STDERR_FILENO +# define STDERR_FILENO 2 +#endif + +/* Declare make device, major and minor. Since major is a function on + SVR4, we have to resort to GOT_MAJOR instead of just testing if + major is #define'd. */ + +#if MAJOR_IN_MKDEV +# include +# if !defined(makedev) && defined(mkdev) +# define makedev(a,b) mkdev((a),(b)) +# endif +# define GOT_MAJOR +#endif + +#if MAJOR_IN_SYSMACROS +# include +# define GOT_MAJOR +#endif + +/* Some defines the macros. */ +#ifdef major +# define GOT_MAJOR +#endif + +#ifndef GOT_MAJOR +# if MSDOS +# define major(device) (device) +# define minor(device) (device) +# define makedev(major, minor) (((major) << 8) | (minor)) +# define GOT_MAJOR +# endif +#endif + +/* For HP-UX before HP-UX 8, major/minor are not in . */ +#ifndef GOT_MAJOR +# if defined(hpux) || defined(__hpux__) || defined(__hpux) +# include +# define GOT_MAJOR +# endif +#endif + +#ifndef GOT_MAJOR +# define major(device) (((device) >> 8) & 0xff) +# define minor(device) ((device) & 0xff) +# define makedev(major, minor) (((major) << 8) | (minor)) +#endif + +#undef GOT_MAJOR + +/* Declare wait status. */ + +#if HAVE_SYS_WAIT_H +# include +#endif +#ifndef WEXITSTATUS +# define WEXITSTATUS(s) (((s) >> 8) & 0xff) +#endif +#ifndef WIFSIGNALED +# define WIFSIGNALED(s) (((s) & 0xffff) - 1 < (unsigned) 0xff) +#endif +#ifndef WTERMSIG +# define WTERMSIG(s) ((s) & 0x7f) +#endif + +/* FIXME: It is wrong to use BLOCKSIZE for buffers when the logical block + size is greater than 512 bytes; so ST_BLKSIZE code below, in preparation + for some cleanup in this area, later. */ + +/* Extract or fake data from a `struct stat'. ST_BLKSIZE gives the + optimal I/O blocksize for the file, in bytes. Some systems, like + Sequents, return st_blksize of 0 on pipes. */ + +#define DEFAULT_ST_BLKSIZE 512 + +#if !HAVE_ST_BLKSIZE +# define ST_BLKSIZE(statbuf) DEFAULT_ST_BLKSIZE +#else +# define ST_BLKSIZE(statbuf) \ + ((statbuf).st_blksize > 0 ? (statbuf).st_blksize : DEFAULT_ST_BLKSIZE) +#endif + +/* Extract or fake data from a `struct stat'. ST_NBLOCKS gives the + number of ST_NBLOCKSIZE-byte blocks in the file (including indirect blocks). + HP-UX counts st_blocks in 1024-byte units, + this loses when mixing HP-UX and BSD filesystems with NFS. AIX PS/2 + counts st_blocks in 4K units. */ + +#if !HAVE_ST_BLOCKS +# if defined(_POSIX_SOURCE) || !defined(BSIZE) +# define ST_NBLOCKS(statbuf) ((statbuf).st_size / ST_NBLOCKSIZE + ((statbuf).st_size % ST_NBLOCKSIZE != 0)) +# else + off_t st_blocks (); +# define ST_NBLOCKS(statbuf) (st_blocks ((statbuf).st_size)) +# endif +#else +# define ST_NBLOCKS(statbuf) ((statbuf).st_blocks) +# if defined(hpux) || defined(__hpux__) || defined(__hpux) +# define ST_NBLOCKSIZE 1024 +# else +# if defined(_AIX) && defined(_I386) +# define ST_NBLOCKSIZE (4 * 1024) +# endif +# endif +#endif + +#ifndef ST_NBLOCKSIZE +# define ST_NBLOCKSIZE 512 +#endif + +/* Network Appliance file systems store small files directly in the + inode if st_size <= 64; in this case the number of blocks can be + zero. Perhaps other file systems have similar problems; so, + somewhat arbitrarily, do not consider a file to be sparse if + it has no blocks but st_size < ST_NBLOCKSIZE. */ +#define ST_IS_SPARSE(st) \ + (ST_NBLOCKS (st) \ + < ((st).st_size / ST_NBLOCKSIZE \ + + ((st).st_size % ST_NBLOCKSIZE != 0 \ + && (st).st_size / ST_NBLOCKSIZE != 0))) + +/* Declare standard functions. */ + +#if STDC_HEADERS +# include +#else +void *malloc (); +char *getenv (); +#endif + +#include +#include + +#include +#if !defined _POSIX_VERSION && MSDOS +# include +#endif + +#if WITH_DMALLOC +# define DMALLOC_FUNC_CHECK +# include +#endif + +#include + +#ifndef MB_LEN_MAX +# define MB_LEN_MAX 1 +#endif + +#include + +#include + +#define UINTMAX_STRSIZE_BOUND INT_BUFSIZE_BOUND (uintmax_t) + +/* Prototypes for external functions. */ + +#if HAVE_LOCALE_H +# include +#endif +#if !HAVE_SETLOCALE +# define setlocale(category, locale) /* empty */ +#endif + +#include +#ifdef TIME_WITH_SYS_TIME +# include +#endif + +/* Library modules. */ + +#include +#include +#include +#include +#include + +#include +#define _(msgid) gettext (msgid) +#define N_(msgid) msgid + +#ifdef HAVE_PWD_H +# include +#endif +#ifdef HAVE_GRP_H +# include +#endif + +#if MSDOS +# include +# define SET_BINARY_MODE(arc) setmode(arc, O_BINARY) +# define ERRNO_IS_EACCES errno == EACCES +# define mkdir(file, mode) (mkdir) (file) +# define TTY_NAME "con" +# define sys_reset_uid_gid() +#else +# define SET_BINARY_MODE(arc) +# define ERRNO_IS_EACCES 0 +# define TTY_NAME "/dev/tty" +# define sys_reset_uid_gid() \ + do { \ + if (! (setuid (getuid ()) == 0 && setgid (getgid ()) == 0)) \ + abort (); \ + } while (0) +#endif + +#if XENIX +# include +#endif -- cgit v1.2.1