-/* $OpenBSD: channels.c,v 1.260 2006/07/22 20:48:22 stevesk Exp $ */
+/* $OpenBSD: channels.c,v 1.270 2007/06/25 08:20:03 dtucker Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
#include "includes.h"
-#include <sys/ioctl.h>
#include <sys/types.h>
+#include <sys/ioctl.h>
#include <sys/un.h>
#include <sys/socket.h>
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
+#include <stdarg.h>
+#include "xmalloc.h"
#include "ssh.h"
#include "ssh1.h"
#include "ssh2.h"
#include "packet.h"
-#include "xmalloc.h"
#include "log.h"
#include "misc.h"
+#include "buffer.h"
#include "channels.h"
#include "compat.h"
#include "canohost.h"
#include "key.h"
#include "authfd.h"
#include "pathnames.h"
-#include "bufaux.h"
/* -- channel core */
if (have < nmethods + 2)
return 0;
/* look for method: "NO AUTHENTICATION REQUIRED" */
- for (found = 0, i = 2 ; i < nmethods + 2; i++) {
- if (p[i] == SSH_SOCKS5_NOAUTH ) {
+ for (found = 0, i = 2; i < nmethods + 2; i++) {
+ if (p[i] == SSH_SOCKS5_NOAUTH) {
found = 1;
break;
}
channel_handle_rfd(Channel *c, fd_set *readset, fd_set *writeset)
{
char buf[CHAN_RBUF];
- int len;
+ int len, force;
- if (c->rfd != -1 &&
- FD_ISSET(c->rfd, readset)) {
+ force = c->isatty && c->detach_close && c->istate != CHAN_INPUT_CLOSED;
+ if (c->rfd != -1 && (force || FD_ISSET(c->rfd, readset))) {
errno = 0;
len = read(c->rfd, buf, sizeof(buf));
- if (len < 0 && (errno == EINTR || errno == EAGAIN))
+ if (len < 0 && (errno == EINTR || (errno == EAGAIN && !force)))
return 1;
#ifndef PTY_ZEROREAD
if (len <= 0) {
c->local_consumed += len;
}
} else if (c->extended_usage == CHAN_EXTENDED_READ &&
- FD_ISSET(c->efd, readset)) {
+ (c->detach_close || FD_ISSET(c->efd, readset))) {
len = read(c->efd, buf, sizeof(buf));
debug2("channel %d: read %d from efd %d",
c->self, len, c->efd);
- if (len < 0 && (errno == EINTR || errno == EAGAIN))
+ if (len < 0 && (errno == EINTR ||
+ (errno == EAGAIN && !c->detach_close)))
return 1;
if (len <= 0) {
debug2("channel %d: closing read-efd %d",
{
if (c->type == SSH_CHANNEL_OPEN &&
!(c->flags & (CHAN_CLOSE_SENT|CHAN_CLOSE_RCVD)) &&
- c->local_window < c->local_window_max/2 &&
+ ((c->local_window_max - c->local_window >
+ c->local_maxpacket*3) ||
+ c->local_window < c->local_window_max/2) &&
c->local_consumed > 0) {
packet_start(SSH2_MSG_CHANNEL_WINDOW_ADJUST);
packet_put_int(c->remote_id);
/* Send the forward request to the remote side. */
if (compat20) {
const char *address_to_bind;
- if (listen_host == NULL)
- address_to_bind = "localhost";
- else if (*listen_host == '\0' || strcmp(listen_host, "*") == 0)
- address_to_bind = "";
- else
+ if (listen_host == NULL) {
+ if (datafellows & SSH_BUG_RFWD_ADDR)
+ address_to_bind = "127.0.0.1";
+ else
+ address_to_bind = "localhost";
+ } else if (*listen_host == '\0' ||
+ strcmp(listen_host, "*") == 0) {
+ if (datafellows & SSH_BUG_RFWD_ADDR)
+ address_to_bind = "0.0.0.0";
+ else
+ address_to_bind = "";
+ } else
address_to_bind = listen_host;
packet_start(SSH2_MSG_GLOBAL_REQUEST);
return;
}
- cp = disp;
- if (disp)
- cp = strchr(disp, ':');
+ cp = strchr(disp, ':');
if (cp)
cp = strchr(cp, '.');
if (cp)