how to monitor system calls?

[Anon]

I am using a system(gpg --decrypt ...) call from a script and for some reason it does not work. (the same gpg call works fine from the command line though).

How can I find out what is going on there? How to monitor what kind of error the system call gives me?

[Anon]

Hi,

I don't know about monitoring, but you might want to check file permissions. You might be allowed to write to the destination path, but the user the webserver runs as might not.

Johan