Hi All,

I've attached a patch for potential inclusion into curl. The patch modifies
how slist_append handles the situation where a NULL char* is passed in,
currently this causes a segfault. While I agree people shouldn't be passing
a NULL value in I have fixed that issue in the app I discovered this in so
it can't happen I do think that modifying curl so it doesn't segfault would
be an improvement.

The way I have chosen to fix this in curl is to allow append to return the
original list is the data to be added is NULL, this both prevents a
segfault and also prevents data loss(and potential memory leak) that would
be caused by returning NULL.

Any comments on validity/changes welcome.

I have also attached a patch that updates the man page in the event the
first patch is included and a mini c app that replicates the segfault on
current curl builds and demonstrates the fix functions correctly on
inclusion.

Cheers,

Rob

-- 
------------------------------
Rob Ward
www.rob-ward.co.uk

-------------------------------------------------------------------
List admin: http://cool.haxx.se/list/listinfo/curl-library
Etiquette: http://curl.haxx.se/mail/etiquette.html