: traces to stderr may cause core dumps if hostname >=16

The following issue has been RESOLVED. 
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http://w
ww.dbmail.org/mantis/view.php?id=712 
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Reported By:                hinote
Assigned To:                paul
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Project:                    DBMail
Issue ID:                   712
Category:                   General
Reproducibility:            have not tried
Severity:                   crash
Priority:                   normal
Status:                     resolved
target:                      
Resolution:                 fixed
Fixed in Version:           2.2.11
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Date Submitted:             19-Jun-08 16:16 CEST
Last Modified:              01-Jul-08 10:44 CEST
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Summary:                    traces to stderr may cause core
dumps if hostname
>=16
Description: 
One will get core dumps on some systems with hostname longer
than 15.
That's due to the following code in debug.c:

char            hostname[16];
...
memset(&hostname,'',16);
gethostname(hostname,16);

- it's stated for gethostname() that the resulting string
copied to the
array do not have to be zero-terminated if the hostname does
not fit into
the array (depends on the platform).

(same problematic code persists in the 2.3.x branch)

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------------------------------------------------------------
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 hinote - 19-Jun-08 16:19  
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oops, the original code in 2.2.10 was
gethostname(&hostname,16);
instead of 
gethostname(hostname,16);
as I stated above.

I've changed it locally to 
gethostname(hostname,16);
in order to eliminate a compiler warning here.

Please consider this (cosmetic indeed) modification as
well... 

------------------------------------------------------------
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 paul - 01-Jul-08 10:44  
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Thanks for pointing this out.
I've fixed the code involved. 

Issue History 
Date Modified   Username       Field                   
Change               
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19-Jun-08 16:16 hinote         New Issue                    
               
19-Jun-08 16:19 hinote         Note Added: 0002575          
               
19-Jun-08 16:35 hinote         Issue Monitored: hinote      
               
01-Jul-08 10:44 paul           Note Added: 0002585          
               
01-Jul-08 10:44 paul           Assigned To              
=> paul            
01-Jul-08 10:44 paul           Status                   new
=> resolved     
01-Jul-08 10:44 paul           Resolution               open
=> fixed       
01-Jul-08 10:44 paul           Fixed in Version         
=> 2.2.11          
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