475aeda9d6
Change sizes from unsigned int to int. Clean up some usage and parameter checking. Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4262 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
/*
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* cbfstool
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*
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* Copyright (C) 2009 Myles Watson <mylesgw@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*/
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#include <ctype.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include "cbfstool.h"
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static int extract_blob(struct rom *rom, const char *filename, const char *name)
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{
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void *buf;
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int fd, ret;
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int size;
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ret = rom_extract(rom, name, &buf, &size);
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if (ret == -1)
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return -1;
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fd = open(filename, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
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if (fd == -1) {
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ERROR("Could not open %s: %m\n", filename);
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return -1;
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}
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if (write(fd, buf, size) != size) {
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ERROR("Couldn't write %d bytes!\n", size);
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ret = -1;
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}
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close(fd);
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return ret;
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}
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void extract_usage(void)
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{
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printf("extract [FILE] [NAME] \textract a component\n");
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}
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int extract_handler(struct rom *rom, int argc, char **argv)
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{
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if (argc < 2) {
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extract_usage();
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return -1;
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}
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if (!rom_exists(rom)) {
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ERROR("Can't find the ROM!\n");
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return -1;
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}
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return extract_blob(rom, argv[0], argv[1]);
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}
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