Bug 332531

Summary:	ifconfig returns invalid exit code when incorrect netmask is given
Product:	Red Hat Enterprise Linux 4	Reporter:	Michal Marciniszyn <mmarcini>
Component:	net-tools	Assignee:	Zdenek Prikryl <zprikryl>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	4.5	CC:	tvujec
Target Milestone:	---
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Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	Bug Fix
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Clone Of:		Environment:
Last Closed:	2008-09-16 14:51:34 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Michal Marciniszyn 2007-10-15 14:16:04 UTC

Description of problem:
If we try to change netmask of the interface and we choose incorrect one (i.e.
255.255.252.255), ifconfig shows us warning, but exits with exit code 0.

Version-Release number of selected component (if applicable):
rhel 4.5

How reproducible:
always


Steps to Reproduce:
ifconfig eth0 ip_addres netmask 255.255.252.255
echo $?
  
Actual results:
0

Expected results:
non-zero exit code

Additional info:

Comment 1 Zdenek Prikryl 2008-09-16 14:51:34 UTC

ifcondig uses ioct() to setting netmask. If ioctl() successes, then ifconfig returns 0. In this case, ioctl() really successes, so ifconfig returns zero. In my opinion this is not a bug but a feature.

Zdenek