icemulti: Refuse to pack empty image

2017-08-14 13:10:57 +02:00 · 2017-08-14 13:10:57 +02:00 · ca90cc78e1
parent e9e49bb5db
commit ca90cc78e1
1 changed files with 3 additions and 0 deletions
--- 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;
 }