mirror of
https://github.com/fail0verflow/switch-coreboot.git
synced 2025-05-04 01:39:18 -04:00
92efb61fa7
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-By: Stefan Reinauer <stepan@coresystems.de> and others. git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@39 f3766cd6-281f-0410-b1cd-43a5c92072e9
127 lines
2.9 KiB
C
127 lines
2.9 KiB
C
/*
|
|
* lar - linuxbios archiver
|
|
*
|
|
* written by Stefan Reinauer <stepan@coresystems.de>
|
|
*
|
|
* (C) 2006 coresystems GmbH. All rights reserved.
|
|
*
|
|
* 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; version 2 of the License.
|
|
*
|
|
* 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 St, Fifth Floor, Boston, MA, 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/mman.h>
|
|
#include <netinet/in.h>
|
|
|
|
#include "lib.h"
|
|
#include "lar.h"
|
|
|
|
int extract_lar(int argc, char *argv[])
|
|
{
|
|
int archivefile;
|
|
char * archivename;
|
|
char * inmap;
|
|
char * walk;
|
|
char *fullname, *pathname, *pos;
|
|
struct lar_header * header;
|
|
struct stat statbuf;
|
|
int archivelen;
|
|
int do_extract;
|
|
int i;
|
|
|
|
archivename=argv[2];
|
|
|
|
if (stat(archivename, &statbuf)!=0) {
|
|
printf("Error opening %s: %s\n",
|
|
archivename, strerror(errno));
|
|
exit(1);
|
|
}
|
|
printf("Opening %s\n", archivename);
|
|
|
|
archivefile=open(archivename, O_RDONLY);
|
|
if (archivefile==-1) {
|
|
printf("Error while opening %s: %s\n",
|
|
archivename, strerror(errno));
|
|
exit(1);
|
|
}
|
|
archivelen=statbuf.st_size;
|
|
|
|
|
|
inmap=mmap(NULL, statbuf.st_size, PROT_READ,
|
|
MAP_SHARED, archivefile, 0);
|
|
|
|
for (walk=inmap; walk<inmap+statbuf.st_size; walk+=16) {
|
|
FILE * file_to_extract;
|
|
|
|
if(strcmp(walk, MAGIC)!=0)
|
|
continue;
|
|
|
|
header=(struct lar_header *)walk;
|
|
fullname=walk+sizeof(struct lar_header);
|
|
|
|
// FIXME: check checksum
|
|
|
|
do_extract=1;
|
|
if(argc>3) {
|
|
do_extract=0;
|
|
for (i=3; i<argc; i++) {
|
|
if(strcmp(fullname, argv[i])==0) {
|
|
do_extract=1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// dont extract this one, skip it.
|
|
if(!do_extract)
|
|
continue;
|
|
|
|
printf(" Extracting file %s\n", walk+sizeof(struct lar_header));
|
|
|
|
// Create the directory if it does not exist.
|
|
pathname=strdup(fullname);
|
|
pos=strrchr(pathname, '/');
|
|
if(pos) {
|
|
pos[1]=0;
|
|
//printf("pathname %s\n",pathname);
|
|
mkdirp(pathname);
|
|
}
|
|
free(pathname);
|
|
|
|
file_to_extract=fopen(fullname, "w");
|
|
if(!file_to_extract) {
|
|
printf("error creating file.\n");
|
|
exit(1);
|
|
}
|
|
//printf("starting offs=%d, len=%d\n", ntohl(header->offset),
|
|
// ntohl(header->len));
|
|
fwrite(walk+ntohl(header->offset), ntohl(header->len),
|
|
1, file_to_extract);
|
|
fclose(file_to_extract);
|
|
}
|
|
munmap(inmap, statbuf.st_size);
|
|
close(archivefile);
|
|
printf("done.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|