2 * Copyright (C) 2006-2007 Michael Buesch <mb@bu3sch.de>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2
6 * as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
27 struct cmdline_args cmdargs = {
28 .arch = 5, /* Default to v5 architecture. */
35 static int do_cmp_arg(char **argv, int *pos,
42 size_t arg_len, template_len;
45 next_arg = argv[*pos + 1];
46 arg_len = strlen(arg);
47 template_len = strlen(template);
50 /* Maybe we have a merged parameter here.
51 * A merged parameter is "-pfoobar" for example.
53 if (allow_merged && arg_len > template_len) {
54 if (memcmp(arg, template, template_len) == 0) {
55 *param = arg + template_len;
59 } else if (arg_len != template_len)
63 if (strcmp(arg, template) == 0) {
65 /* Skip the parameter on the next iteration. */
68 fprintf(stderr, "%s needs a parameter\n", arg);
78 /* Simple and lean command line argument parsing. */
79 static int cmp_arg(char **argv, int *pos,
80 const char *long_template,
81 const char *short_template,
87 err = do_cmp_arg(argv, pos, long_template, 0, param);
88 if (err == ARG_MATCH || err == ARG_ERROR)
93 err = do_cmp_arg(argv, pos, short_template, 1, param);
97 static void usage(int argc, char **argv)
99 fprintf(stderr, "Usage: %s INPUT_FILE OUTPUT_FILE [OPTIONS]\n", argv[0]);
100 fprintf(stderr, " -a|--arch ARCH The architecture type of the input file\n");
101 fprintf(stderr, " -h|--help Print this help\n");
102 fprintf(stderr, " -d|--debug Print verbose debugging info\n");
103 fprintf(stderr, " Repeat for more verbose debugging\n");
106 int parse_args(int argc, char **argv)
115 for (i = 1; i < argc; i++) {
116 if ((res = cmp_arg(argv, &i, "--help", "-h", 0)) == ARG_MATCH) {
119 } else if ((res = cmp_arg(argv, &i, "--debug", "-d", 0)) == ARG_MATCH) {
121 } else if ((res = cmp_arg(argv, &i, "--arch", "-a", ¶m)) == ARG_MATCH) {
125 arch = strtol(param, &tail, 0);
126 if (strlen(tail) || (arch != 5)) {
127 fprintf(stderr, "Unsupported architecture \"%s\"\n",
134 infile_name = argv[i];
138 outfile_name = argv[i];
141 fprintf(stderr, "Unrecognized argument: %s\n", argv[i]);
145 if (!infile_name || !outfile_name)
154 int open_input_file(void)
156 if (strcmp(infile_name, "-") == 0) {
159 infile = fopen(infile_name, "r");
161 fprintf(stderr, "Could not open INPUT_FILE %s\n",
170 void close_input_file(void)
172 if (strcmp(infile_name, "-") != 0)
176 int open_output_file(void)
178 if (strcmp(outfile_name, "-") == 0) {
181 outfile = fopen(outfile_name, "w+");
183 fprintf(stderr, "Could not open OUTPUT_FILE %s\n",
192 void close_output_file(void)
194 if (strcmp(outfile_name, "-") != 0)