obfuscate_bitmap(data, datalen * 8, decode);
if (outputmode == BINARY) {
- fwrite(data, 1, datalen, stdout);
+ int ret = fwrite(data, 1, datalen, stdout);
+ if (ret < 0) {
+ fprintf(stderr, "obfusc: write: %s\n", strerror(errno));
+ return 1;
+ }
} else {
int i;
for (i = 0; i < datalen; i++)