/* Serial interface for a pipe to a separate program
- Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2001, 2007 Free Software Foundation, Inc.
Contributed by Cygnus Solutions.
* published in UNIX Review, Vol. 6, No. 8.
*/
int pdes[2];
+ int err_pdes[2];
int pid;
if (socketpair (AF_UNIX, SOCK_STREAM, 0, pdes) < 0)
return -1;
+ if (socketpair (AF_UNIX, SOCK_STREAM, 0, err_pdes) < 0)
+ return -1;
/* Create the child process to run the command in. Note that the
apparent call to vfork() below *might* actually be a call to
{
close (pdes[0]);
close (pdes[1]);
+ close (err_pdes[0]);
+ close (err_pdes[1]);
return -1;
}
+ if (fcntl (err_pdes[0], F_SETFL, O_NONBLOCK) == -1)
+ {
+ close (err_pdes[0]);
+ close (err_pdes[1]);
+ err_pdes[0] = err_pdes[1] = -1;
+ }
+
/* Child. */
if (pid == 0)
{
close (pdes[1]);
}
dup2 (STDOUT_FILENO, STDIN_FILENO);
+
+ if (err_pdes[0] != -1)
+ {
+ close (err_pdes[0]);
+ dup2 (err_pdes[1], STDERR_FILENO);
+ close (err_pdes[1]);
+ }
#if 0
/* close any stray FD's - FIXME - how? */
/* POSIX.2 B.3.2.2 "popen() shall ensure that any streams
state = XMALLOC (struct pipe_state);
state->pid = pid;
scb->fd = pdes[0];
+ scb->error_fd = err_pdes[0];
scb->state = state;
/* If we don't do this, GDB simply exits when the remote side dies. */