/* Serial interface for a pipe to a separate program
- Copyright (C) 1999, 2000, 2001, 2007, 2008, 2009, 2010
+ Copyright (C) 1999, 2000, 2001, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Contributed by Cygnus Solutions.
int pid;
};
-/* Open up a raw pipe */
+/* Open up a raw pipe. */
static int
pipe_open (struct serial *scb, const char *name)
on certain platforms. */
pid = vfork ();
- /* Error. */
+ /* Error. */
if (pid == -1)
{
close (pdes[0]);
err_pdes[0] = err_pdes[1] = -1;
}
- /* Child. */
+ /* Child. */
if (pid == 0)
{
/* We don't want ^c to kill the connection. */
signal (SIGINT, SIG_IGN);
#endif
- /* re-wire pdes[1] to stdin/stdout */
+ /* Re-wire pdes[1] to stdin/stdout. */
close (pdes[0]);
if (pdes[1] != STDOUT_FILENO)
{
close (err_pdes[1]);
}
#if 0
- /* close any stray FD's - FIXME - how? */
+ /* close any stray FD's - FIXME - how? */
/* POSIX.2 B.3.2.2 "popen() shall ensure that any streams
from previous popen() calls that remain open in the
- parent process are closed in the new child process. */
+ parent process are closed in the new child process. */
for (old = pidlist; old; old = old->next)
- close (fileno (old->fp)); /* don't allow a flush */
+ close (fileno (old->fp)); /* Don't allow a flush. */
#endif
execl ("/bin/sh", "sh", "-c", name, (char *) 0);
_exit (127);
}
- /* Parent. */
+ /* Parent. */
close (pdes[1]);
if (err_pdes[1] != -1)
close (err_pdes[1]);