132 lines
3.3 KiB
C
132 lines
3.3 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2012 Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "samsung.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <getopt.h>
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static bool g_debug = false;
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static char *g_out_prefix = NULL;
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static void usage(void)
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{
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printf("Usage: fwdecrypt [options] firmware\n");
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printf("Options:\n");
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printf(" -o <prefix>\tSet output file\n");
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printf(" -f/--force\tForce to continue on errors\n");
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printf(" -?/--help\tDisplay this message\n");
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printf(" -d/--debug\tDisplay debug messages\n");
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exit(1);
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}
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static int s_read(void *user, int offset, void *buf, int size)
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{
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FILE *f = user;
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if(fseek(f, offset, SEEK_SET) != 0)
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return 0;
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return fread(buf, 1, size, f);
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}
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static void s_printf(void *user, bool error, const char *fmt, ...)
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{
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if(!g_debug && !error)
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return;
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(void) user;
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va_list args;
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va_start(args, fmt);
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vprintf(fmt, args);
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va_end(args);
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}
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int main(int argc, char **argv)
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{
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if(argc <= 1)
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usage();
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while(1)
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{
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static struct option long_options[] =
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{
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{"help", no_argument, 0, '?'},
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{"debug", no_argument, 0, 'd'},
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{0, 0, 0, 0}
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};
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int c = getopt_long(argc, argv, "?do:", long_options, NULL);
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if(c == -1)
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break;
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switch(c)
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{
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case -1:
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break;
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case 'd':
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g_debug = true;
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break;
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case '?':
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usage();
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break;
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case 'o':
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g_out_prefix = optarg;
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break;
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default:
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abort();
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}
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}
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if(optind != argc - 1)
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usage();
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FILE *f = fopen(argv[optind], "rb");
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if(f == NULL)
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{
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printf("Cannot open file for reading: %m\n");
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return 1;
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}
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enum samsung_error_t err;
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struct samsung_firmware_t *fw = samsung_read(s_read, s_printf,
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f, &err);
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if(fw == NULL || err != SAMSUNG_SUCCESS)
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{
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printf("Error reading firmware: %d\n", err);
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samsung_free(fw);
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return 1;
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}
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fclose(f);
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if(g_out_prefix)
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{
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f = fopen(g_out_prefix, "wb");
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if(f == NULL)
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{
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printf("Cannot open file for writing: %m\n");
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return 2;
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}
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fwrite(fw->data, 1, fw->data_size, f);
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fclose(f);
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}
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samsung_free(fw);
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return 0;
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}
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