catching output and errors with popen c++

mshindo · 02-04-2009, 02:26 AM

I have code which at the moment only catches the command/program output if the program runs correctly, which is a small problem as I would like to capture everything from stdout inclusive of errors

FILE *fp;
fp = popen(command.c_str(), "r");
while(fgets(cbuf, 1024, fp) != NULL){
.....do stuff here....
}
pclose(fp);

Can anyone tell me where I am going wrong here ?

(Code is being compiled on ubuntu and debian)
Regards
Michael

wje_lq · 02-04-2009, 03:49 AM

The simplest way to do this is to make sure that the command string ends with these characters:

Code:

2>&1

mshindo · 02-04-2009, 04:09 AM

thanks a million