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


int main()
{
 int rc;
 int fd;

 printf( "Standard output\n" );
 close( 1 );   /* close stdout */
 printf( "Standard output?\n" );

 /* open a file for writing */
 fd = open( "newfile.txt", O_WRONLY | O_CREAT | O_TRUNC, 0400 | 0200 );
 printf( "fd is %d\n", fd );
 fprintf( stderr, "(stderr) fd is %d\n", fd );

 /* redirect one file descriptor to another */
 rc = dup2( fd, 2 );  /* stderr (2) redirected to fd (1) */
                      /* dup2() closes stderr (2) */

 /* rc of dup2() is equal to 2nd arg on success */
 if ( rc == 2 ) {
   /* success */
   fprintf( stderr, "(stderr) Where does this error msg go?\n" );
 } else {
   perror( "dup2() failed" );
   return 1;
 }

 /* FORK A CHILD PROCESS */
 {
   pid_t z = fork();
   if ( z == 0 )
   {
     printf( "CHILD: Hey, where's my output going?\n" );
     fprintf( stderr, "CHILD: How about my stderr?\n" );
     execlp( "/bin/ls", "ls", NULL );
   }
   else /* parent */
   {
     wait( NULL );
   }
 }


 close( fd );

 printf( "CAN WE SEE THIS? (NOPE)\n" );

 return 0;
}