receiving stderr and stdout from popen

Hello all,

consider the code for running an external process and receiving the output:

Code:

        read_fp = popen(system_call,"r");
        if (read_fp != NULL)
        {
                chars_read = fread(sys_result, sizeof(char), sizeof(my_var)-1,                      read_fp);	
                pclose(read_fp);
        }

i want to be able to receive the stdout stream and not the stderr stream.

is this done by popen by default, or will i have to change the system_call or the external process?

i think i've just answered my question!!! maybe cat "2>/dev/null" on the end of system_call???

i would still like to know about popen though.

TIA, rotis23

You can also use pipe() and fork(), which is what I *believe* popen() does anyway. There's sample code of this somewhere, I thought it was here but it doesn't look like I remember Anyway, it may help you.