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#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include "xbm.h"
static void do_help (FILE *os, const char *program_name) {
fprintf(os,
"Load an XBM file from STDIN, print the bits back to the STDOUT\n"
"Usage: %s [-h]\n"
"Options:\n"
" -h print this message and exit normally\n"
, program_name);
}
static void do_opts (const int argc, const char **argv) {
int o;
while (true) {
o = getopt(argc, (char *const *)argv, "h");
if (o < 0) {
break;
}
switch (o) {
case 'h':
do_help(stdout, argv[0]);
exit(0);
break; // compiler, stfu
default:
do_help(stderr, argv[0]);
exit(2);
}
}
}
int main (const int argc, const char **argv) {
int ec = 0;
unsigned int c;
xbm_t xbm;
size_t p;
do_opts(argc, argv);
init_xbm(&xbm);
if (!load_xbm(stdin, &xbm, NULL, NULL)) {
ec = 1;
perror("load_xbm()");
goto END;
}
for (size_t i = 0; i < xbm.bits_len; i += 1) {
c = (unsigned char)xbm.bits[i];
printf("%02x%c", c, (i + 1) % 24 == 0 ? '\n' : ' ');
}
if (p % 24 != 0) {
printf("\n");
}
END:
free_xbm(&xbm);
return ec;
}
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