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I want to redirect all my C-Program messages (error, informational etc.) to my own file using syslog (Linux). I am sure many would have tried and this related mostly with syslog configuration. I could forward the messages to default syslog message file "/var/log/messages" , but I want how to configure to my own file. Am I need to do anything in the C-program itself to achieve this? or the configuration has to be done just in /etc/syslog.conf alone.
I'm not sure I completely follow you.
If you want to use the syslog() function to log errors, then you must configure your syslogd to log to files other than the default. C can't control how syslogd handles messages. Unless, I suppose, your syslogd has a way to easily control it at runtime. Mine doesn't.
If you want to write to a file, why not just do it directly with C?
If you are wanting to create your own log files for a program, you can redirect stdout and stderr to the files you wish after you create them.
For example:
If you want to, you could open a log file from within your program and write messages to it. That way the messages would always go to the file and never to the screen.Code:$ ./program >output.log 2>errors.log