commit 39b94429580f9d69f45b913fab18637230184824
from: Witcher01 <bthw@posteo.net>
date: Thu Mar 28 13:36:19 2019 UTC

added checking for file error

commit - 6f9042ca96eb1d219aa0f01ea86f6583d521d139
commit + 39b94429580f9d69f45b913fab18637230184824
blob - 2d8fa48ea9964d3ac082f455dfa4a6fd48aef078
blob + d09ca49aaf03f92ee38117c124d8c1a15237aae9
--- id3r.c
+++ id3r.c
@@ -26,6 +26,10 @@ main(int argc, char *argv[])
 
     f = fopen(argv[1], "rb");
 
+    if (!f) {
+        fprintf(stderr, "error, unable to open file: %s\n", argv[1]);
+    }
+
     if(checkid3v1(f)) {
         puts("ID3v1 tag found!");
         printid3v1(f);