create and use log file with C

[madey]

Hello,
I am writing some code right now and I am thinking it would be grate to create some log file and send to it error/warning messages. Is there any common pattern to implement this solution? How can I easily get log directory name, create this file and send messages from C??

[wje_lf]

I don't know what you mean by "get log directory name", but for your other questions, do this at the command line:

man fopen
man fwrite

and all will be revealed.

[Cabhan]

If you just want to print warnings or errors to the user, you can just print to stderr and let him redirect it as he pleases.

If you want to use a system logfile, you can use the syslog() function. Run the command "man 3 syslog" for more information.