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Cleanly exit if attempting to open non-existent disk

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Fixes issue #7.
This commit is contained in:
Ry 2023-01-30 14:07:43 -08:00
parent 157841311d
commit 7719755a52
1 changed files with 4 additions and 0 deletions
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4
src/disk.c
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@ -19,6 +19,10 @@ void new_disk(const char *filename, size_t id) {
if (id > 3) { puts("attempting to access disk with ID > 3\n"); return; }
printf("mounting %s as disk ID %d\n", filename, (int) id);
disk_controller.disks[id].file = fopen(filename, "r+b");
if (!disk_controller.disks[id].file) {
fprintf(stderr, "couldn't open disk file\n");
exit(1);
}
fseek(disk_controller.disks[id].file, 0, SEEK_END);
disk_controller.disks[id].size = ftell(disk_controller.disks[id].file);
rewind(disk_controller.disks[id].file);