2c06a80918
* src/buffer.c (short_read): the "Record size" message is controlled by the WARN_RECORD_SIZE warning_option bit. * src/common.h (keep_directory_symlink_option): New global. (WARN_RECORD_SIZE): New constant. (WARN_VERBOSE_WARNINGS): Add WARN_RECORD_SIZE. * src/extract.c (extract_dir): If keep_directory_symlink_option is set, follow symlinks to directories. * src/suffix.c (compression_suffixes): Add support for txz suffix. * src/tar.c (KEEP_DIRECTORY_SYMLINK_OPTION): New constant. (options): New option --keep-directory-symlink. (parse_opt): Handle this option. * src/warning.c: Implement "record-size" warning control. * NEWS: Update. * doc/tar.texi: Document new features.
84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/* This file is part of GNU tar.
|
|
Copyright 2007, 2009, 2013 Free Software Foundation, Inc.
|
|
|
|
Written by Sergey Poznyakoff.
|
|
|
|
GNU tar 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.
|
|
|
|
GNU tar 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 GNU tar. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include <system.h>
|
|
#include "common.h"
|
|
|
|
struct compression_suffix
|
|
{
|
|
const char *suffix;
|
|
size_t length;
|
|
const char *program;
|
|
};
|
|
|
|
static struct compression_suffix compression_suffixes[] = {
|
|
#define __CAT2__(a,b) a ## b
|
|
#define S(s,p) #s, sizeof (#s) - 1, __CAT2__(p,_PROGRAM)
|
|
{ S(gz, GZIP) },
|
|
{ S(tgz, GZIP) },
|
|
{ S(taz, GZIP) },
|
|
{ S(Z, COMPRESS) },
|
|
{ S(taZ, COMPRESS) },
|
|
{ S(bz2, BZIP2) },
|
|
{ S(tbz, BZIP2) },
|
|
{ S(tbz2, BZIP2) },
|
|
{ S(tz2, BZIP2) },
|
|
{ S(lz, LZIP) },
|
|
{ S(lzma, LZMA) },
|
|
{ S(tlz, LZMA) },
|
|
{ S(lzo, LZOP) },
|
|
{ S(xz, XZ) },
|
|
{ S(txz, XZ) }, /* Slackware */
|
|
#undef S
|
|
#undef __CAT2__
|
|
};
|
|
|
|
static int nsuffixes = sizeof (compression_suffixes) /
|
|
sizeof (compression_suffixes[0]);
|
|
|
|
static const char *
|
|
find_compression_program (const char *name, const char *defprog)
|
|
{
|
|
char *suf = strrchr (name, '.');
|
|
|
|
if (suf)
|
|
{
|
|
int i;
|
|
size_t len;
|
|
|
|
suf++;
|
|
len = strlen (suf);
|
|
|
|
for (i = 0; i < nsuffixes; i++)
|
|
{
|
|
if (compression_suffixes[i].length == len
|
|
&& memcmp (compression_suffixes[i].suffix, suf, len) == 0)
|
|
return compression_suffixes[i].program;
|
|
}
|
|
}
|
|
return defprog;
|
|
}
|
|
|
|
void
|
|
set_compression_program_by_suffix (const char *name, const char *defprog)
|
|
{
|
|
const char *program = find_compression_program (name, defprog);
|
|
if (program)
|
|
use_compress_program_option = program;
|
|
}
|