fk98/src/main.c
2020-11-13 21:43:35 -08:00

87 lines
1.6 KiB
C

#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "dosfs.h"
static void usage(void) __dead;
static int list_img(char *);
int
main(int argc, char *argv[])
{
int ch, list_mode;
setprogname(argv[0]);
list_mode = 0;
while ((ch = getopt(argc, argv, "l")) != -1) {
switch (ch) {
case 'l':
list_mode = 1;
break;
case '?':
default:
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (argc != 1) {
usage();
/* NOTREACHED */
}
if (list_mode) {
return list_img(argv[0]);
}
/* TODO: rest of the owl */
fprintf(stderr, "not yet implemented :(\n");
return EXIT_FAILURE;
}
static int
list_img(char *path)
{
dosfs_t img = { 0 };
dosfile_t *rootdir, *cur;
int res;
res = open_image(path, O_RDONLY, &img);
if (res != 0) {
fprintf(stderr, "err: couldn't open image (errno %d)\n", res);
return EXIT_FAILURE;
}
rootdir = dos_listdir(&img, img.root_loc);
if (rootdir == NULL) {
perror("couldn't read root dir");
close_image(&img);
return EXIT_FAILURE;
}
printf("OEM ID: %.8s\nDirectory listing:\n", img.ib.oem_id);
for (cur = rootdir; cur->next != NULL; cur = cur->next) {
printf(" %s.%s\n", cur->fname, cur->fext);
}
dos_freedir(rootdir);
rootdir = cur = NULL;
close_image(&img);
return EXIT_SUCCESS;
}
static void
usage(void)
{
fprintf(stderr, "usage: %s [-l] image\n", getprogname());
exit(EXIT_FAILURE);
}