config/5166: "apachectl configtest" does not detect duplicate Listen statements

[Bryan Fullerton <fu...@toronto.cbc.ca>]

>Number:         5166
>Category:       config
>Synopsis:       "apachectl configtest" does not detect duplicate Listen statements
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Mon Oct 18 13:10:07 PDT 1999
>Last-Modified:
>Originator:     fullertb@toronto.cbc.ca
>Organization:
apache
>Release:        1.3.9
>Environment:
SunOS home.cbc.ca 5.6 Generic_105181-09 sun4u sparc SUNW,Ultra-4
>Description:
"apachectl configtest" does not detect duplicate Listen statements.
>How-To-Repeat:
Add two duplicate listen statements to httpd.conf, ie:

Listen 127.0.0.1:80
Listen 127.0.0.1:80

Run "apachectl configtest" - it will say "Syntax OK".  Try a restart, and the
server will fail to proceed, logging "[crit] (125)Address already in use:
make_sock: could not bind to address 127.0.0.1 port 80"
>Fix:
Add checking for duplicate Listen statements to "apachectl configtest".
>Audit-Trail:
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