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Date Posted: 05:27:03 09/05/08 Fri
Author: prakash
Subject: Can you tell me how to rotate the log messages across a number of files
In reply to: Anandan 's message, "Re: How to use Unix syslog in my C/C++ program?" on 05:02:54 09/05/08 Fri

>If you want to log your information/debug/assertion
>messages of your C/C++ program, you have to do the
>1. To log your messages to a file, you have to
>configure syslog to take the process name of your
>running program. Your program has to be configured as
>a user process. syslog is a daemon process that takes
>its input from "/etc/syslog.conf"
>One has to give the level of logging also. For
>example, if your executable binary program name is
>'examplerun'. You might be running the program as
>./examplerun. The the process name is 'examplerun'. To
>get the informational messages of this program, you
>have to configure in /etc/syslog.conf as given below:
>user.info (minimal 2 tab spaces) >name with absolute path>
>Once after above configuration restart syslog using
>the command:
>/etc/init.d/syslog stop ; /etc/init.d/syslog start
>2. In your C/C++ program, you should send the log
>syslog(LOG_NOTICE, "Sum of two integers entered is
>%d", c);
>You may have to include the syslog header file also:
>By mentioning user.info in syslog file, we are passing
>only the informational message mentioned as LOG_NOTICE
>in our C/C++ program is passed to the log file.
>There are some more related to syslog from your
>application. Please refer the following urls:
> >href="http://www.precision-guesswork.com/sage-guide/sys

> >href="http://www.linuxjournal.com/article/5476">http://

> >href="http://webfuse.cqu.edu.au/Courses/aut2001/85321/R

Thanks for your information. I wish to know how to rotate the log messages across a number of files using syslog. What are the relationship between file sizes/date on which log messages generated. Pl. give details.

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