9764a6b1d3
* src/suffix.c (set_compression_program_by_suffix): Renamed from set_comression_program_by_suffix. * src/buffer.c, src/common.h, src/tar.c: All uses changed.
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/* This file is part of GNU tar.
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Copyright (C) 2007, 2009 Free Software Foundation, Inc.
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Written by Sergey Poznyakoff.
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GNU tar is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 3, or (at your option) any later
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version.
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GNU tar is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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Public License for more details.
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You should have received a copy of the GNU General Public License along
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with GNU tar. If not, see <http://www.gnu.org/licenses/>. */
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#include <system.h>
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#include "common.h"
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struct compression_suffix
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{
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const char *suffix;
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size_t length;
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const char *program;
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};
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static struct compression_suffix compression_suffixes[] = {
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#define __CAT2__(a,b) a ## b
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#define S(s,p) #s, sizeof (#s) - 1, __CAT2__(p,_PROGRAM)
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{ S(gz, GZIP) },
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{ S(tgz, GZIP) },
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{ S(taz, GZIP) },
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{ S(Z, COMPRESS) },
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{ S(taZ, COMPRESS) },
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{ S(bz2, BZIP2) },
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{ S(tbz, BZIP2) },
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{ S(tbz2, BZIP2) },
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{ S(tz2, BZIP2) },
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{ S(lz, LZIP) },
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{ S(lzma, LZMA) },
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{ S(tlz, LZMA) },
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{ S(lzo, LZOP) },
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{ S(xz, XZ) },
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#undef S
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#undef __CAT2__
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};
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static int nsuffixes = sizeof (compression_suffixes) /
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sizeof (compression_suffixes[0]);
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static const char *
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find_compression_program (const char *name, const char *defprog)
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{
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char *suf = strrchr (name, '.');
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if (suf)
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{
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int i;
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size_t len;
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suf++;
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len = strlen (suf);
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for (i = 0; i < nsuffixes; i++)
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{
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if (compression_suffixes[i].length == len
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&& memcmp (compression_suffixes[i].suffix, suf, len) == 0)
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return compression_suffixes[i].program;
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}
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}
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return defprog;
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}
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void
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set_compression_program_by_suffix (const char *name, const char *defprog)
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{
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const char *program = find_compression_program (name, defprog);
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if (program)
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use_compress_program_option = program;
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}
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