BSD 4_1c_2 release

[unix-history] / usr / src / usr.bin / learn / makpipe.c

#ifndef lint
static char sccsid[] = "@(#)makpipe.c   4.1     (Berkeley)      2/24/83";
#endif not lint

#include "stdio.h"

makpipe()
{
       int f[2];

       pipe(f);
       if (fork()==0) {
               close(f[1]);
               close(0);
               dup(f[0]);
               close(f[0]);
               execl ("/bin/sh", "sh", "-i", 0);
               execl ("/usr/bin/sh", "sh", "-i", 0);
               write(2,"Exec error\n",11);
       }
       close(f[0]);
       sleep(2);       /* so shell won't eat up too much input */
       return(f[1]);
}