Premature end of script headers: bb-histlog.sh

[Asif Iqbal]

I am getting core dump only for historical yellow data for some hosts.

apache log:

[Fri Jul 23 16:17:22 2010] [error] [client 192.168.0.94] Premature end
of script headers: bb-histlog.sh, referer:
https://xymon.example.net/hobbit-cgi/bb-hist.sh?HISTFILE=cer1cc-015.clientcare.example.net.cpu&ENTRIES=50&IP=192.168.0.209&DISPLAYNAME=cer1cc-015.clientcare.example.net


(hobbit)@xymon:~$ REQUEST_METHOD=GET SCRIPT_NAME=bb-histlog.sh
QUERY_STRING="HOST=cer1cc-014.clientcare.example.net&SERVICE=cpu&TIMEBUF=Wed_Jul_21_14:56:42_2010"
cgi-bin/bb-histlog.sh

generates core dump.

(hobbit)@xymon:~$ file core
core:           ELF 32-bit LSB core file 80386 Version 1, from 'hobbitsvc.cgi'

(hobbit)@xymon:~$ gdb server/bin/hobbitsvc.cgi core
[..]
(gdb) backtrace
#0  0xfed64fa1 in realfree () from /lib/libc.so.1
#1  0xfed655bf in cleanfree () from /lib/libc.so.1
#2  0xfed64adb in _malloc_unlocked () from /lib/libc.so.1
#3  0xfed64a04 in malloc () from /lib/libc.so.1
#4  0x08067621 in xmalloc (size=12) at memory.c:119
#5  0x0805a1f1 in expand_env (s=0x80707bb "4.2.3") at environ.c:296
#6  0x0805a08c in xgetenv (name=0x80715c9 "HOBBITDREL") at environ.c:165
#7  0x0805db08 in headfoot (output=0x8089e28, template=0x80717d3
"histlog", pagepath=0x80716c6 "", head_or_foot=0x80717f3 "header",
    bgcolor=4) at headfoot.c:1114
#8  0x0805f639 in generate_html_log (hostname=0x80913a8
"cer1cc-014.clientcare.example.net",
    displayname=0x80913a8 "cer1cc-014.clientcare.example.net",
service=0x808aa90 "cpu", ip=0x8099168 "10.240.91.208", color=4,
    sender=0x80ad668 "10.240.91.208", flags=0x806ff21 "", logtime=0,
timesincechange=0x8047bbc "0.00 minutes",
    firstline=0x8094128 "yellow Wed Jul 21 14:56:35 GMT 2010 up: 98
days, 0 users, 624 procs, load=7.51",
    restofmsg=0x80ae61f "&yellow Load is HIGH\nSystem clock is 0
seconds off\n\n\n\n\n  2:56pm  up 98 days, 17:04,  0 users,  load
average: 9.38, 7.51, 4.34\n624 processes: 623 sleeping, 1 running, 0
zombie, 0 stopped\nCPU states:  0"..., acktime=0, ackmsg=0x0,
acklist=0x0,
    disabletime=0, dismsg=0x0, is_history=1, wantserviceid=0,
htmlfmt=0, hobbitd=0,
    multigraphs=0x8073060 ",disk,inode,qtree,quotas,snapshot,TblSpace,if_load,",
    linktoclient=0x808ae40
"bb-histlog.sh?CLIENT=cer1cc-014.clientcare.example.net&amp8TIMEBUF=1279724202",
nkprio=0x0, nkttgroup=0x0,
    nkttextra=0x0, output=0x8089e28) at htmllog.c:150
#9  0x08054189 in do_request () at hobbitsvc.c:421
#10 0x0805530e in main (argc=4, argv=Cannot access memory at address 0x555202bc
) at hobbitsvc.c:518


Any one have a workaround? I tried to change the CFLAGS and recompile
with gcc 4.3.4

replaced
CFLAGS = -g -O2 -Wall -Wno-unused -D_REENTRANT $(LFSDEF) $(OSDEF)

with
CFLAGS = -g -O2 -Wall -D_REENTRANT $(LFSDEF) $(OSDEF)

that did not help here.

-- 
Asif Iqbal
PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?