icemulti: Refuse to pack empty image

osresearch · Sep 4, 2017 · ca90cc7 · ca90cc7
1 parent e9e49bb
commit ca90cc7
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/icemulti/icemulti.cc b/icemulti/icemulti.cc
@@ -109,6 +109,9 @@ size_t Image::size()
     ifs.seekg (0, ifs.beg);
     if (ifs.fail())
         error("can't seek on input image `%s': %s\n", filename, strerror(errno));
+
+    if (length == 0)
+        error("input image `%s' doesn't contain any data\n", filename);
     return length;
 }