Check string length before trying to resize it

Fixes mayanklahiri#33
asmaloney · Sep 10, 2018 · 467db84 · 467db84
1 parent 9d46abb
commit 467db84
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/exif.cpp b/exif.cpp
@@ -349,7 +349,7 @@ IFEntry parseIFEntry_temp(const unsigned char *buf, const unsigned offs,
       }
       // and cut zero byte at the end, since we don't want that in the
       // std::string
-      if (result.val_string()[result.val_string().length() - 1] == '\0') {
+      if (result.length() && result.val_string()[result.val_string().length() - 1] == '\0') {
         result.val_string().resize(result.val_string().length() - 1);
       }
       break;