Hi, I've been trying mudflap today and I got the following problems/questions: 1. Is there an option to turn off error checking or displaying of messages if an object size is unknown, like 'extern char blah[]'. 2. After resolving 1) I got a crash with mudflap upon accept(). A backtrace shows it happens in __mfwrap_accept(). The accept() line in the code is just normal though: if ((fd = accept(cptr->fd, NULL, NULL)) < 0) Where 'p cptr->fd' shows '5'. Unfortunately I don't have much more info besides that, since this is just a "normal lib", no debugging symbols etc. Is there an option to turn this checking off? Because I'm mainly interested in out-of-bounds buffer usage, so I don't know why it's hooking accept(). I did a quick look with MUDFLAP_OPTIONS=-help but couldn't find anything to disable this. Additional info: Using fedora core 4, gcc 4.0.0 20050519 (Red Hat 4.0.0-8) Is this old / broken? I didn't see any online update available from fedora at least, but I do see gcc 4.0.1 here at GNU. Thanks in advance, Bram. -- Bram Matthys Software developer/IT consultant syzop@xxxxxxxxxxxx PGP key: www.vulnscan.org/pubkey.asc PGP fp: 8DD4 437E 9BA8 09AA 0A8D 1811 E1C3 D65F E6ED 2AA2