Call a program & still capture cmds

[Zuconta]

I have a program which runs steps, calls another program, and runs more steps if the program call was successful. The program I call is (and needs to remain) interactive, so I used system(). The child program allows the user to abort the process at any time by hitting <esc> <esc> 1. Unfortunately, the program exits with a 0 (OK) status when this is happens.

Is there a way to capture the abort sequence within the parent program?


Not the actual code...but this should give the basic idea.

while(scanf(file_in, "%s", buffer))
printf("file_out, "%s\n", buffer);

if(system(run_program)!=0)
return;

while(scanf(new_file, "%s", buffer)
printf(report, "%s\n", buffer);

[Zuconta]

Unix (Dec-alpha) with the cc compiler.

[quzah]

It would be better to just use one program and spawn a child, rather than calling system. 'system' just returns the value of that call itself, not the return value of whatever program/call you make.

On a side note, according to the man pages, system ignores interrupts.

A spawned child process would be a better idea. Of course, if that isn't an option, you may end up having to actually be calling a shell script instead of an executable, and then have it do something based on the retrun value of whatever program you're running.

I don't think you'll have much luck with just system on its own. However, I'm far from a Unix guru, so there may be a way around it.

Quzah.

[Zuconta]

Thanks...I'll check into spawning...

(I don't have Xterm...I am stuck in a single window world)