Crash when msLoadMSRasterBufferFromFile() fails to open file

[mapserver-bot]

Reporter: woodbri
Date: 2012/03/29 - 21:34
Trac URL: http://trac.osgeo.org/mapserver/ticket/4265
mapserver crashes when it can not open a symbol

[Thu Mar 29 15:23:20 2012].235133 msDrawLabelCache(): labelcache_map_edge_buffer = 10
[Thu Mar 29 15:23:20 2012].243273 msLoadMSRasterBufferFromFile(): General error message. unable to open file /u/data/tiger2011-maps/indistrial for reading
mapserv: mapagg.cpp:571: int agg2RenderPixmapSymbol(imageObj*, double, double, symbolObj*, symbolStyleObj*): Assertion `pixmap->type == MS_BUFFER_BYTE_RGBA' failed.
Aborted

[tbonfort]

@woodbri Looking through the code, it seems that all the calls loading an image file now check for the return value, which might not have been the case before. If you are able to retest this please confirm this is the case.

If you do manage to crash with an unreadable file, please provide a backtrace.

[woodbri]

@tbonfort here are mapfiles that can reproduce this error and shows some related problems.
http://imaptools.com:8080/dl/bug4265.zip
See the README file.

[tbonfort]

loading svg symbols by filename without defining a proper symbol is not supported. this shortcut is only available for pixmap symbols.

[woodbri]

ok, an appropriate error message and handling is fine. This should also get transferred to doc so it is reflected there. Thanks.