FASTA program discussion list

[Haruna Cofer <>]

Hello, Bill!

I am getting an intermittent segmentation fault using fasta-36.3.8 with this
traceback:

#0  0x00002aaaab3f52fb in memchr () from /lib64/libc.so.6
#1  0x000000000045a7ea in agetlibm ()
#2  0x00000000004068d3 in next_seqr_chain ()
#3  0x0000000000405f2d in seqr_chain_work ()
#4  0x0000000000403435 in main ()

It looks like it happens the first time memchr() is called on line 549 of
mmgetaa.c:

    if ((bp = memchr(desc+desc_len-15,'@', 14)) && !strncmp(bp+1,"C:",2)) {

Perhaps the expression desc+desc_len-15 can point to an invalid memory 
location
if desc_len is less than 15 or so?  In my test case, the first entry of the
library file looks like:

>1
DPNAETLQEVLDSGAYYQ...

So desc_len=2 and desc+desc_len-15 appears to be invalid.  Thank you, Bill!

-- Haruna  :)