/*
 * How to handle the case where we have a file open on a channel other
 * than fd 1 but we want to redirect stdout to that.
 * Similar to spawndup.c but here we are using the slightly easier and
 * slightly more-general function dup2().
 */

#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/wait.h>

int main()
{
    int x = fork();
    if (x == -1) {
        perror("fork");
        return(1);
    } else if (x == 0) {
        /* child */
        int fd;
        if ((fd = open("file", O_WRONLY|O_CREAT|O_TRUNC, 0666)) < 0) {
            perror("file");
            return(1);
        }
        dup2(fd, 1);
        close(fd);
        execl("/bin/ls", "ls", (char *)NULL);
        perror("/bin/ls");
        return(1);
    } else {
        /* parent */
        int status;
        wait(&status);
        printf("Still here, although not for long\n");
        return(0);
    }
}