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List:       net-snmp-coders
Subject:    Re: Core dump
From:       Dave Shield <D.T.Shield () liverpool ! ac ! uk>
Date:       2009-04-28 7:33:42
Message-ID: c64ae3380904280033j532f8b1csf45ee7b284e172ee () mail ! gmail ! com
[Download RAW message or body]

2009/4/28 inyaven sakarai <iniyaven@yahoo.com>:
> # gdb /usr/local/sbin/snmpd ./core.snmpd.20701
> BACKTRACE
> (gdb) bt
> #0=A0 0xfed31d50 in strlen () from /usr/lib/libc.so.1
> #1=A0 0xff26bdfc in var_hrswinst () from /usr/local/lib/libnetsnmpmibs.so=
.15

   [snip]

It's a bit difficult to be sure what's gone wrong with this level of detail=
.
Ideally, this output ought to include line numbers as well, so we
could tell exactly where the problem is occurring.

But there are only a few mentions of 'strlen' in hr_swinst.c
And given that this is a Solaris box, the I suspect that problem
lies with the handling of  pkgparam(..., "VERSION")

I'm attaching a patch that might possibly help.
Note that you'll need to apply this to a source distribution,
and recompile the software.

Dave

["pkgparam.patch" (text/x-patch)]

Index: agent/mibgroup/host/hr_swinst.c
===================================================================
--- agent/mibgroup/host/hr_swinst.c	(revision 17417)
+++ agent/mibgroup/host/hr_swinst.c	(working copy)
@@ -417,7 +417,7 @@
 #ifdef HAVE_PKGINFO
             pver = pkgparam(swi->swi_name, "VERSION");
             /* 1 spot for the terminating null and one for the dash */
-            if (strlen(pver) + 2 + strlen(string) <= sizeof(string)) {
+            if (pver && strlen(pver) + 2 + strlen(string) <= sizeof(string)) {
                 strcat(string, "-");
                 strcat(string, pver);
             }


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