commit 916117d97058b37e7eef2558a71919a8a073a3d3
author Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Thu Mar 29 10:37:12 2018 -0500
committer Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Thu Mar 29 10:37:12 2018 -0500
tree 3924c9b68fd8002ea1692a9e21c7216ae09b7f37
parent 7784cd3f6fba5008a83c869e401cb92e338b2c62

[libpng16] Allow compresion-type to be NULL in png_set_iCCP().

pngget.c

diff --git a/pngget.c b/pngget.c
index 5c435dc..b888db3 100644
--- a/pngget.c
+++ b/pngget.c
@@ -749,7 +749,8 @@
       /* This is somewhat irrelevant since the profile data returned has
        * actually been uncompressed.
        */
-      *compression_type = PNG_COMPRESSION_TYPE_BASE;
+      if (compression_type != NULL)
+         *compression_type = PNG_COMPRESSION_TYPE_BASE;
       return (PNG_INFO_iCCP);
    }