/* Serial interface for raw TCP connections on Un*x like systems
- Copyright 1992, 1993, 1998 Free Software Foundation, Inc.
+ Copyright 1992, 1993, 1998-1999 Free Software Foundation, Inc.
-This file is part of GDB.
+ 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 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.
+ 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. */
+ 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 <sys/types.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/socket.h>
-
#ifndef __CYGWIN32__
#include <netinet/tcp.h>
#endif
-#include "signals.h"
+#include <signal.h>
#include "gdb_string.h"
-struct tcp_ttystate
-{
- int bogus;
-};
-
-static int tcp_open PARAMS ((serial_t scb, const char *name));
-static void tcp_raw PARAMS ((serial_t scb));
-static int wait_for PARAMS ((serial_t scb, int timeout));
-static int tcp_readchar PARAMS ((serial_t scb, int timeout));
-static int tcp_setbaudrate PARAMS ((serial_t scb, int rate));
-static int tcp_setstopbits PARAMS ((serial_t scb, int num));
-static int tcp_write PARAMS ((serial_t scb, const char *str, int len));
-/* FIXME: static void tcp_restore PARAMS ((serial_t scb)); */
-static void tcp_close PARAMS ((serial_t scb));
-static serial_ttystate tcp_get_tty_state PARAMS ((serial_t scb));
-static int tcp_set_tty_state PARAMS ((serial_t scb, serial_ttystate state));
-static int tcp_return_0 PARAMS ((serial_t));
-static int tcp_noflush_set_tty_state PARAMS ((serial_t, serial_ttystate,
- serial_ttystate));
-static void tcp_print_tty_state PARAMS ((serial_t, serial_ttystate));
-
-void _initialize_ser_tcp PARAMS ((void));
+static int tcp_open (serial_t scb, const char *name);
+static void tcp_close (serial_t scb);
+
+void _initialize_ser_tcp (void);
/* Open up a raw tcp socket */
static int
-tcp_open(scb, name)
- serial_t scb;
- const char *name;
+tcp_open (serial_t scb, const char *name)
{
char *port_str;
int port;
port_str = strchr (name, ':');
if (!port_str)
- error ("tcp_open: No colon in host name!"); /* Shouldn't ever happen */
+ error ("tcp_open: No colon in host name!"); /* Shouldn't ever happen */
tmp = min (port_str - name, (int) sizeof hostname - 1);
- strncpy (hostname, name, tmp); /* Don't want colon */
+ strncpy (hostname, name, tmp); /* Don't want colon */
hostname[tmp] = '\000'; /* Tie off host name */
port = atoi (port_str + 1);
/* Allow rapid reuse of this port. */
tmp = 1;
- setsockopt (scb->fd, SOL_SOCKET, SO_REUSEADDR, (char *)&tmp, sizeof(tmp));
+ setsockopt (scb->fd, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp, sizeof (tmp));
/* Enable TCP keep alive process. */
tmp = 1;
- setsockopt (scb->fd, SOL_SOCKET, SO_KEEPALIVE, (char *)&tmp, sizeof(tmp));
+ setsockopt (scb->fd, SOL_SOCKET, SO_KEEPALIVE, (char *) &tmp, sizeof (tmp));
sockaddr.sin_family = PF_INET;
- sockaddr.sin_port = htons(port);
+ sockaddr.sin_port = htons (port);
memcpy (&sockaddr.sin_addr.s_addr, hostent->h_addr,
sizeof (struct in_addr));
- if (!connect (scb->fd, (struct sockaddr *) &sockaddr, sizeof(sockaddr)))
+ if (!connect (scb->fd, (struct sockaddr *) &sockaddr, sizeof (sockaddr)))
break;
close (scb->fd);
tmp = 1;
if (setsockopt (scb->fd, protoent->p_proto, TCP_NODELAY,
- (char *)&tmp, sizeof(tmp)))
+ (char *) &tmp, sizeof (tmp)))
return -1;
- signal(SIGPIPE, SIG_IGN); /* If we don't do this, then GDB simply exits
+ signal (SIGPIPE, SIG_IGN); /* If we don't do this, then GDB simply exits
when the remote side dies. */
return 0;
}
-static serial_ttystate
-tcp_get_tty_state(scb)
- serial_t scb;
-{
- struct tcp_ttystate *state;
-
- state = (struct tcp_ttystate *)xmalloc(sizeof *state);
-
- return (serial_ttystate)state;
-}
-
-static int
-tcp_set_tty_state(scb, ttystate)
- serial_t scb;
- serial_ttystate ttystate;
-{
- struct tcp_ttystate *state;
-
- state = (struct tcp_ttystate *)ttystate;
-
- return 0;
-}
-
-static int
-tcp_return_0 (scb)
- serial_t scb;
-{
- return 0;
-}
-
-static void
-tcp_raw(scb)
- serial_t scb;
-{
- return; /* Always in raw mode */
-}
-
-/* Wait for input on scb, with timeout seconds. Returns 0 on success,
- otherwise SERIAL_TIMEOUT or SERIAL_ERROR.
-
- For termio{s}, we actually just setup VTIME if necessary, and let the
- timeout occur in the read() in tcp_read().
- */
-
-static int
-wait_for (scb, timeout)
- serial_t scb;
- int timeout;
-{
- int numfds;
- struct timeval tv;
- fd_set readfds, exceptfds;
-
- FD_ZERO (&readfds);
- FD_ZERO (&exceptfds);
-
- tv.tv_sec = timeout;
- tv.tv_usec = 0;
-
- FD_SET(scb->fd, &readfds);
- FD_SET(scb->fd, &exceptfds);
-
- while (1)
- {
- if (timeout >= 0)
- numfds = select(scb->fd+1, &readfds, 0, &exceptfds, &tv);
- else
- numfds = select(scb->fd+1, &readfds, 0, &exceptfds, 0);
-
- if (numfds <= 0)
- {
- if (numfds == 0)
- return SERIAL_TIMEOUT;
- else if (errno == EINTR)
- continue;
- else
- return SERIAL_ERROR; /* Got an error from select or poll */
- }
-
- return 0;
- }
-}
-
-/* Read a character with user-specified timeout. TIMEOUT is number of seconds
- to wait, or -1 to wait forever. Use timeout of 0 to effect a poll. Returns
- char if successful. Returns -2 if timeout expired, EOF if line dropped
- dead, or -3 for any other error (see errno in that case). */
-
-static int
-tcp_readchar (scb, timeout)
- serial_t scb;
- int timeout;
-{
- int status;
-
- if (scb->bufcnt-- > 0)
- return *scb->bufp++;
-
- status = wait_for(scb, timeout);
-
- if (status < 0)
- return status;
-
- while (1)
- {
- scb->bufcnt = read(scb->fd, scb->buf, BUFSIZ);
- if (scb->bufcnt != -1 || errno != EINTR)
- break;
- }
-
- if (scb->bufcnt <= 0)
- {
- if (scb->bufcnt == 0)
- return SERIAL_TIMEOUT; /* 0 chars means timeout [may need to
- distinguish between EOF & timeouts
- someday] */
- else
- return SERIAL_ERROR; /* Got an error from read */
- }
-
- scb->bufcnt--;
- scb->bufp = scb->buf;
- return *scb->bufp++;
-}
-
-static int
-tcp_noflush_set_tty_state (scb, new_ttystate, old_ttystate)
- serial_t scb;
- serial_ttystate new_ttystate;
- serial_ttystate old_ttystate;
-{
- return 0;
-}
-
static void
-tcp_print_tty_state (scb, ttystate)
- serial_t scb;
- serial_ttystate ttystate;
-{
- /* Nothing to print. */
- return;
-}
-
-static int
-tcp_setbaudrate(scb, rate)
- serial_t scb;
- int rate;
-{
- return 0; /* Never fails! */
-}
-
-static int
-tcp_setstopbits(scb, num)
- serial_t scb;
- int num;
-{
- return 0; /* Never fails! */
-}
-
-static int
-tcp_write(scb, str, len)
- serial_t scb;
- const char *str;
- int len;
-{
- int cc;
-
- while (len > 0)
- {
- cc = write(scb->fd, str, len);
-
- if (cc < 0)
- return 1;
- len -= cc;
- str += cc;
- }
- return 0;
-}
-
-static void
-tcp_close(scb)
- serial_t scb;
+tcp_close (serial_t scb)
{
if (scb->fd < 0)
return;
- close(scb->fd);
+ close (scb->fd);
scb->fd = -1;
}
-static struct serial_ops tcp_ops =
-{
- "tcp",
- 0,
- tcp_open,
- tcp_close,
- tcp_readchar,
- tcp_write,
- tcp_return_0, /* flush output */
- tcp_return_0, /* flush input */
- tcp_return_0, /* send break */
- tcp_raw,
- tcp_get_tty_state,
- tcp_set_tty_state,
- tcp_print_tty_state,
- tcp_noflush_set_tty_state,
- tcp_setbaudrate,
- tcp_setstopbits,
- tcp_return_0, /* wait for output to drain */
-};
-
void
-_initialize_ser_tcp ()
-{
- serial_add_interface (&tcp_ops);
+_initialize_ser_tcp (void)
+{
+ struct serial_ops *ops = XMALLOC (struct serial_ops);
+ memset (ops, sizeof (struct serial_ops), 0);
+ ops->name = "tcp";
+ ops->next = 0;
+ ops->open = tcp_open;
+ ops->close = tcp_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);
}
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