mirror of
https://github.com/gnuton/asuswrt-merlin.ng.git
synced 2025-05-19 16:02:36 +02:00
130 lines
2.9 KiB
C
130 lines
2.9 KiB
C
/*
|
|
*
|
|
* Copyright (c) 2009, 2010
|
|
* Phillip Lougher <phillip@lougher.demon.co.uk>
|
|
*
|
|
* 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 2,
|
|
* 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
* compressor.c
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "compressor.h"
|
|
#include "squashfs_fs.h"
|
|
|
|
#ifndef GZIP_SUPPORT
|
|
static struct compressor gzip_comp_ops = {
|
|
NULL, NULL, NULL, NULL, NULL, NULL, ZLIB_COMPRESSION, "gzip", 0
|
|
};
|
|
#else
|
|
extern struct compressor gzip_comp_ops;
|
|
#endif
|
|
|
|
#ifndef LZMA_SUPPORT
|
|
static struct compressor lzma_comp_ops = {
|
|
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, LZMA_COMPRESSION,
|
|
"lzma", 0
|
|
};
|
|
#else
|
|
extern struct compressor lzma_comp_ops;
|
|
#endif
|
|
|
|
#ifndef LZO_SUPPORT
|
|
static struct compressor lzo_comp_ops = {
|
|
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, LZO_COMPRESSION, "lzo",
|
|
0
|
|
};
|
|
#else
|
|
extern struct compressor lzo_comp_ops;
|
|
#endif
|
|
|
|
#ifndef XZ_SUPPORT
|
|
static struct compressor xz_comp_ops = {
|
|
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, XZ_COMPRESSION, "xz", 0
|
|
};
|
|
#else
|
|
extern struct compressor xz_comp_ops;
|
|
#endif
|
|
|
|
|
|
static struct compressor unknown_comp_ops = {
|
|
NULL, NULL, NULL , NULL, NULL, NULL, NULL, NULL, 0, "unknown", 0
|
|
};
|
|
|
|
|
|
struct compressor *compressor[] = {
|
|
&gzip_comp_ops,
|
|
&lzma_comp_ops,
|
|
&lzo_comp_ops,
|
|
&xz_comp_ops,
|
|
&unknown_comp_ops
|
|
};
|
|
|
|
|
|
struct compressor *lookup_compressor(char *name)
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; compressor[i]->id; i++)
|
|
if(strcmp(compressor[i]->name, name) == 0)
|
|
break;
|
|
|
|
return compressor[i];
|
|
}
|
|
|
|
|
|
struct compressor *lookup_compressor_id(int id)
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; compressor[i]->id; i++)
|
|
if(id == compressor[i]->id)
|
|
break;
|
|
|
|
return compressor[i];
|
|
}
|
|
|
|
|
|
void display_compressors(char *indent, char *def_comp)
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; compressor[i]->id; i++)
|
|
if(compressor[i]->supported)
|
|
fprintf(stderr, "%s\t%s%s\n", indent,
|
|
compressor[i]->name,
|
|
strcmp(compressor[i]->name, def_comp) == 0 ?
|
|
" (default)" : "");
|
|
}
|
|
|
|
|
|
void display_compressor_usage(char *def_comp)
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; compressor[i]->id; i++)
|
|
if(compressor[i]->supported) {
|
|
char *str = strcmp(compressor[i]->name, def_comp) == 0 ?
|
|
" (default)" : "";
|
|
if(compressor[i]->usage) {
|
|
fprintf(stderr, "\t%s%s\n",
|
|
compressor[i]->name, str);
|
|
compressor[i]->usage();
|
|
} else
|
|
fprintf(stderr, "\t%s (no options)%s\n",
|
|
compressor[i]->name, str);
|
|
}
|
|
}
|