diff options
Diffstat (limited to 'utils/samsungtools/fwdecrypt.c')
-rw-r--r-- | utils/samsungtools/fwdecrypt.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/utils/samsungtools/fwdecrypt.c b/utils/samsungtools/fwdecrypt.c new file mode 100644 index 0000000000..67dfb315c2 --- /dev/null +++ b/utils/samsungtools/fwdecrypt.c | |||
@@ -0,0 +1,131 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2012 Amaury Pouly | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | #include "samsung.h" | ||
22 | #include <stdio.h> | ||
23 | #include <stdlib.h> | ||
24 | #include <stdarg.h> | ||
25 | #include <getopt.h> | ||
26 | |||
27 | static bool g_debug = false; | ||
28 | static char *g_out_prefix = NULL; | ||
29 | |||
30 | static void usage(void) | ||
31 | { | ||
32 | printf("Usage: fwdecrypt [options] firmware\n"); | ||
33 | printf("Options:\n"); | ||
34 | printf(" -o <prefix>\tSet output file\n"); | ||
35 | printf(" -f/--force\tForce to continue on errors\n"); | ||
36 | printf(" -?/--help\tDisplay this message\n"); | ||
37 | printf(" -d/--debug\tDisplay debug messages\n"); | ||
38 | exit(1); | ||
39 | } | ||
40 | |||
41 | static int s_read(void *user, int offset, void *buf, int size) | ||
42 | { | ||
43 | FILE *f = user; | ||
44 | if(fseek(f, offset, SEEK_SET) != 0) | ||
45 | return 0; | ||
46 | return fread(buf, 1, size, f); | ||
47 | } | ||
48 | |||
49 | static void s_printf(void *user, bool error, const char *fmt, ...) | ||
50 | { | ||
51 | if(!g_debug && !error) | ||
52 | return; | ||
53 | (void) user; | ||
54 | va_list args; | ||
55 | va_start(args, fmt); | ||
56 | vprintf(fmt, args); | ||
57 | va_end(args); | ||
58 | } | ||
59 | |||
60 | int main(int argc, char **argv) | ||
61 | { | ||
62 | if(argc <= 1) | ||
63 | usage(); | ||
64 | |||
65 | while(1) | ||
66 | { | ||
67 | static struct option long_options[] = | ||
68 | { | ||
69 | {"help", no_argument, 0, '?'}, | ||
70 | {"debug", no_argument, 0, 'd'}, | ||
71 | {0, 0, 0, 0} | ||
72 | }; | ||
73 | |||
74 | int c = getopt_long(argc, argv, "?do:", long_options, NULL); | ||
75 | if(c == -1) | ||
76 | break; | ||
77 | switch(c) | ||
78 | { | ||
79 | case -1: | ||
80 | break; | ||
81 | case 'd': | ||
82 | g_debug = true; | ||
83 | break; | ||
84 | case '?': | ||
85 | usage(); | ||
86 | break; | ||
87 | case 'o': | ||
88 | g_out_prefix = optarg; | ||
89 | break; | ||
90 | default: | ||
91 | abort(); | ||
92 | } | ||
93 | } | ||
94 | |||
95 | if(optind != argc - 1) | ||
96 | usage(); | ||
97 | |||
98 | FILE *f = fopen(argv[optind], "rb"); | ||
99 | if(f == NULL) | ||
100 | { | ||
101 | printf("Cannot open file for reading: %m\n"); | ||
102 | return 1; | ||
103 | } | ||
104 | |||
105 | enum samsung_error_t err; | ||
106 | struct samsung_firmware_t *fw = samsung_read(s_read, s_printf, | ||
107 | f, &err); | ||
108 | if(fw == NULL || err != SAMSUNG_SUCCESS) | ||
109 | { | ||
110 | printf("Error reading firmware: %d\n", err); | ||
111 | samsung_free(fw); | ||
112 | return 1; | ||
113 | } | ||
114 | fclose(f); | ||
115 | |||
116 | if(g_out_prefix) | ||
117 | { | ||
118 | f = fopen(g_out_prefix, "wb"); | ||
119 | if(f == NULL) | ||
120 | { | ||
121 | printf("Cannot open file for writing: %m\n"); | ||
122 | return 2; | ||
123 | } | ||
124 | fwrite(fw->data, 1, fw->data_size, f); | ||
125 | fclose(f); | ||
126 | } | ||
127 | |||
128 | samsung_free(fw); | ||
129 | |||
130 | return 0; | ||
131 | } | ||