Difference between QProcess and exec()

**Markus** · 18th November 2013, 23:32

I have a 1st clue, as soon as I start re-directing stdout my script fails. Code:

Qt Code:

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int my_pipe[2];
    if(pipe(my_pipe) == -1)
    {
        fprintf(stderr, "Error creating pipe\n");
    }
 
    pid_t pID = fork();
    if (pID == 0)                // child
    {
        close(my_pipe[0]); // child doesn't read
        dup2(my_pipe[1], 1); // redirect stdout
        execl(prog,prog,args, (char *) 0);
    }

int my_pipe[2];
    if(pipe(my_pipe) == -1)
    {
        fprintf(stderr, "Error creating pipe\n");
    }

    pid_t pID = fork();
    if (pID == 0)                // child
    {
        close(my_pipe[0]); // child doesn't read
        dup2(my_pipe[1], 1); // redirect stdout
        execl(prog,prog,args, (char *) 0);
    }

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I think the problem might most likely be in the script than in Qt