sm64pc/tools/n64cksum.c
2019-08-25 00:46:40 -04:00

58 lines
1.2 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include "libsm64.h"
#include "utils.h"
#define N64CKSUM_VERSION "0.1"
static void print_usage(void)
{
ERROR("Usage: n64cksum ROM [ROM_OUT]\n"
"\n"
"n64cksum v" N64CKSUM_VERSION ": N64 ROM checksum calculator\n"
"\n"
"File arguments:\n"
" ROM input ROM file\n"
" ROM_OUT output ROM file (default: overwrites input ROM)\n");
}
int main(int argc, char *argv[])
{
unsigned char *rom_data;
char *file_in;
char *file_out;
long length;
long write_length;
if (argc < 2) {
print_usage();
return EXIT_FAILURE;
}
file_in = argv[1];
if (argc > 2) {
file_out = argv[2];
} else {
file_out = argv[1];
}
length = read_file(file_in, &rom_data);
if (length < 0) {
ERROR("Error reading input file \"%s\"\n", file_in);
return EXIT_FAILURE;
}
sm64_update_checksums(rom_data);
write_length = write_file(file_out, rom_data, length);
free(rom_data);
if (write_length != length) {
ERROR("Error writing to output file \"%s\"\n", file_out);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}