rrdtool 1.0.33 can be made to seg fault in the
following way:
mutare# gdb rrdtool
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
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This GDB was configured as "i386-unknown-freebsd"...
(gdb) r update poseidon-traffic-1.rrd N::
Starting program: /usr/home/ollie/rrdtest/rrdtool update poseidon-traffic-1.rrd
N::
Program received signal SIGSEGV, Segmentation fault.
0x805d8a6 in rrd_diff (a=0x8097000 <Error reading address 0x8097000: Bad
address>, b=0x8093100 "") at rrd_diff.c:33
33 a++;
(gdb)
This is due to a bug in rrd_diff, which the following
patch fixes. The bug is that "!" takes a higher preference
than "||".
--- rrd_diff.c.orig Fri Apr 6 17:57:53 2001
+++ rrd_diff.c Fri Apr 6 18:05:29 2001
@@ -29,13 +29,13 @@
char res[LAST_DS_LEN+1], *a1, *b1, *r1, *fix;
int c,x,m;
- while (!isdigit((int)*a) || *a==0)
+ while (!(isdigit((int)*a) || *a==0))
a++;
fix=a;
while (isdigit((int)*fix))
fix++;
*fix = 0; /* maybe there is some non digit data in the string */
- while (!isdigit((int)*b) || *b==0)
+ while (!(isdigit((int)*b) || *b==0))
b++;
fix=b;
while (isdigit((int)*fix))
Yours,
Ollie
--
Oliver Cook Systems Administrator, ClaraNET
[EMAIL PROTECTED] 020 7903 3000 ext. 291
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