diff options
Diffstat (limited to 'gdb/ser-pipe.c')
| -rw-r--r-- | gdb/ser-pipe.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/gdb/ser-pipe.c b/gdb/ser-pipe.c deleted file mode 100644 index bca0e54e4ba..00000000000 --- a/gdb/ser-pipe.c +++ /dev/null @@ -1,161 +0,0 @@ -/* Serial interface for a pipe to a separate program - Copyright 1999, 2000, 2001 Free Software Foundation, Inc. - - Contributed by Cygnus Solutions. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include "defs.h" -#include "serial.h" -#include "ser-unix.h" - -#include "gdb_vfork.h" - -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <fcntl.h> -#include "gdb_string.h" - -#include <signal.h> - -static int pipe_open (struct serial *scb, const char *name); -static void pipe_close (struct serial *scb); - -extern void _initialize_ser_pipe (void); - -struct pipe_state - { - int pid; - }; - -/* Open up a raw pipe */ - -static int -pipe_open (struct serial *scb, const char *name) -{ -#if !HAVE_SOCKETPAIR - return -1; -#else - struct pipe_state *state; - /* This chunk: */ - /* Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software written by Ken Arnold and - * published in UNIX Review, Vol. 6, No. 8. - */ - int pdes[2]; - int pid; - if (socketpair (AF_UNIX, SOCK_STREAM, 0, 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 - fork() due to the fact that autoconf will ``#define vfork fork'' - on certain platforms. */ - pid = vfork (); - - /* Error. */ - if (pid == -1) - { - close (pdes[0]); - close (pdes[1]); - return -1; - } - - /* Child. */ - if (pid == 0) - { - /* re-wire pdes[1] to stdin/stdout */ - close (pdes[0]); - if (pdes[1] != STDOUT_FILENO) - { - dup2 (pdes[1], STDOUT_FILENO); - close (pdes[1]); - } - dup2 (STDOUT_FILENO, STDIN_FILENO); -#if 0 - /* 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. */ - for (old = pidlist; old; old = old->next) - close (fileno (old->fp)); /* don't allow a flush */ -#endif - execl ("/bin/sh", "sh", "-c", name, NULL); - _exit (127); - } - - /* Parent. */ - close (pdes[1]); - /* :end chunk */ - state = XMALLOC (struct pipe_state); - state->pid = pid; - scb->fd = pdes[0]; - scb->state = state; - - /* If we don't do this, GDB simply exits when the remote side dies. */ - signal (SIGPIPE, SIG_IGN); - return 0; -#endif -} - -static void -pipe_close (struct serial *scb) -{ - struct pipe_state *state = scb->state; - if (state != NULL) - { - int pid = state->pid; - close (scb->fd); - scb->fd = -1; - xfree (state); - scb->state = NULL; - kill (pid, SIGTERM); - /* Might be useful to check that the child does die. */ - } -} - -static struct serial_ops pipe_ops; - -void -_initialize_ser_pipe (void) -{ - struct serial_ops *ops = XMALLOC (struct serial_ops); - memset (ops, sizeof (struct serial_ops), 0); - ops->name = "pipe"; - ops->next = 0; - ops->open = pipe_open; - ops->close = pipe_close; - ops->readchar = ser_unix_readchar; - ops->write = ser_unix_write; - ops->flush_output = ser_unix_nop_flush_output; - ops->flush_input = ser_unix_flush_input; - ops->send_break = ser_unix_nop_send_break; - ops->go_raw = ser_unix_nop_raw; - ops->get_tty_state = ser_unix_nop_get_tty_state; - ops->set_tty_state = ser_unix_nop_set_tty_state; - ops->print_tty_state = ser_unix_nop_print_tty_state; - ops->noflush_set_tty_state = ser_unix_nop_noflush_set_tty_state; - ops->setbaudrate = ser_unix_nop_setbaudrate; - ops->setstopbits = ser_unix_nop_setstopbits; - ops->drain_output = ser_unix_nop_drain_output; - ops->async = ser_unix_async; - serial_add_interface (ops); -} |