[Nagios-devel] SIGSEGV in check.c on Solaris when plugin output is
Posted: Wed Sep 24, 2008 1:10 pm
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Hi list,
nagios dumps core with SIGSEV on Solaris 10 when a plugin does not print=20
any output.
Using gdb I found it happening in line 803 of base/checks.c, where=20
checkresult_dbuf.buf is 0x0 on empty plugin output.
Versions:
- nagios-3.0.3 and nagios-cvs (as of 24. Sept 2008)
- Solaris 10 x86
- both Sun Studio 11 and gcc
I tried a fix just in place by inserting a NULL pointer check just before=20
the fprintf in line 803 ... maybe there is a more elegant solution.
=20
On linux, glibc seems to handel this problem in printf("output=3D%s", NULL)=
=20
by returning the string "(null)".
Regards,
Torsten
=3D=3D=3D
_________________________________________________________________
Sachsen DV Betriebs- und Servicegesellschaft mbH
T=C3=A4ubchenweg 26
04317 Leipzig
Amtsgericht Leipzig, HRB 18545
Gesch=C3=A4ftsf=C3=BChrer: Herbert Roller Brand=C3=A3o, Dr. Jean-Michael Pf=
itzner
Aufsichtsratsvorsitzender: Andreas Benninger
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Hi list,
nagios dumps core with SIGSEV on Sol=
aris
10 when a plugin does not print any output.
Using gdb I found it happening in li=
ne
803 of base/checks.c, where checkresult_dbuf.buf is 0x0 on empty plugin
output.
Versions:
- nagios-3.0.3 and nagios-cvs (as of
24. Sept 2008)
- Solaris 10 x86
- both Sun Studio 11 and gcc
I tried a fix just in place by inser=
ting
a NULL pointer check just before the fprintf in line 803 ... maybe there
is a more elegant solution.
On linux, glibc seems to handel this
problem in printf("output=3D%s", NULL) by returning the string
"(null)".
Regards,
Torsten
=3D=3D=3D
_________________________________________________________________
Sachsen DV Betriebs- und Servicegesellschaft mbH
T=C3=A4ubchenweg 26
04317 Leipzig
Amtsgericht Leipzig, HRB 18545
Gesch=C3=A4ftsf=C3=BChrer: Herbert Roller Brand=C3=A3o, Dr. Jean-Micha=
el Pfitzner
Aufsichtsratsvorsitzender: Andreas Benninger
--=_alternative 004DD2F3C12574CE_=--
This post was automatically imported from historical nagios-devel mailing list archives
Original poster: [email protected]
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Hi list,
nagios dumps core with SIGSEV on Solaris 10 when a plugin does not print=20
any output.
Using gdb I found it happening in line 803 of base/checks.c, where=20
checkresult_dbuf.buf is 0x0 on empty plugin output.
Versions:
- nagios-3.0.3 and nagios-cvs (as of 24. Sept 2008)
- Solaris 10 x86
- both Sun Studio 11 and gcc
I tried a fix just in place by inserting a NULL pointer check just before=20
the fprintf in line 803 ... maybe there is a more elegant solution.
=20
On linux, glibc seems to handel this problem in printf("output=3D%s", NULL)=
=20
by returning the string "(null)".
Regards,
Torsten
=3D=3D=3D
_________________________________________________________________
Sachsen DV Betriebs- und Servicegesellschaft mbH
T=C3=A4ubchenweg 26
04317 Leipzig
Amtsgericht Leipzig, HRB 18545
Gesch=C3=A4ftsf=C3=BChrer: Herbert Roller Brand=C3=A3o, Dr. Jean-Michael Pf=
itzner
Aufsichtsratsvorsitzender: Andreas Benninger
--=_alternative 004DD2F3C12574CE_=
Content-Type: text/html; charset="utf-8"
content-transfer-encoding: quoted-printable
Hi list,
nagios dumps core with SIGSEV on Sol=
aris
10 when a plugin does not print any output.
Using gdb I found it happening in li=
ne
803 of base/checks.c, where checkresult_dbuf.buf is 0x0 on empty plugin
output.
Versions:
- nagios-3.0.3 and nagios-cvs (as of
24. Sept 2008)
- Solaris 10 x86
- both Sun Studio 11 and gcc
I tried a fix just in place by inser=
ting
a NULL pointer check just before the fprintf in line 803 ... maybe there
is a more elegant solution.
On linux, glibc seems to handel this
problem in printf("output=3D%s", NULL) by returning the string
"(null)".
Regards,
Torsten
=3D=3D=3D
_________________________________________________________________
Sachsen DV Betriebs- und Servicegesellschaft mbH
T=C3=A4ubchenweg 26
04317 Leipzig
Amtsgericht Leipzig, HRB 18545
Gesch=C3=A4ftsf=C3=BChrer: Herbert Roller Brand=C3=A3o, Dr. Jean-Micha=
el Pfitzner
Aufsichtsratsvorsitzender: Andreas Benninger
--=_alternative 004DD2F3C12574CE_=--
This post was automatically imported from historical nagios-devel mailing list archives
Original poster: [email protected]