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/*
ihex
Copyright (C) 2025 Thomas Albers Raviola <thomas@thomaslabs.org>
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, either version 3 of the License, or
(at your option) any later version.
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, see <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <util.h>
#include <ihex.h>
#include <array.h>
static void
usage(void)
{
fputs("\
Usage: ihex [OPTION]... [[BASE:]FILE]...\n", stdout);
fputs("\
Convert ihex FILEs into binary data\n\n", stdout);
fputs("\
-h, --help display this help and exit\n", stdout);
fputs("\
-o, --output=NAME write output to NAME\n", stdout);
fputs("\n\
The BASE argument is a base 16 encoded number indicating where to place the\n\
file contents inside the resulting image\n\n", stdout);
fputs("\
ihex home page: <https://thomaslabs.org/software/ihex>\n\
\n\
Copyright (C) 2025 Thomas Albers Raviola\n\
This program comes with ABSOLUTELY NO WARRANTY.\n\
This is free software: you free to change and redistribute it.\n",
stdout);
}
static const char *opts = "ho:";
static const struct option longopts[] = {
{.name = "help", .has_arg = 0, .flag = NULL, .val = 'h'},
{.name = "output", .has_arg = 1, .flag = NULL, .val = 'o'},
{0, 0, 0, 0}
};
static const char *output;
void
decode_args(int argc, char *argv[])
{
int c;
while ((c = getopt_long(argc, argv, opts, longopts, NULL)) != -1) {
switch (c) {
case 0:
break;
case 'h':
usage();
exit(EXIT_SUCCESS);
case 'o':
output = optarg;
break;
case '?':
usage();
exit(EXIT_FAILURE);
default:
break;
}
}
}
int
decode_filename(char *arg, long *base_address, const char **filename)
{
char *junk;
char *sep = strchr(arg, ':');
if (sep) {
*sep++ = '\0';
*filename = sep;
*base_address = strtol(arg, &junk, 16);
if (*junk) {
fprintf(stderr, "Invalid base address for file %s\n",
*filename);
return -1;
}
} else {
*filename = arg;
*base_address = NO_BASE_ADDRESS;
}
return 0;
}
int
main(int argc, char *argv[])
{
int err = 0;
unsigned int i;
struct array blocks;
struct array data;
decode_args(argc, argv);
init_array(&blocks, sizeof(struct block));
init_array(&data, sizeof(char));
for (i = optind; i < argc; ++i) {
long base_address;
const char *filename;
err = decode_filename(argv[i], &base_address, &filename);
if (err < 0)
goto error;
err = read_ihex_file(filename, &blocks, &data, base_address);
if (err < 0)
goto error;
}
FILE *file = output ? fopen(output, "w") : stdout;
if (!file) {
err = 1;
fprintf(stderr, "Could not open output file %s\n", output);
goto error;
}
err = write_hex(&blocks, &data, file);
if (output)
fclose(file);
error:
free_array(&blocks);
free_array(&data);
return err;
}
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