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- djm@cvs.openbsd.org 2010/01/09 05:04:24

Browse Source 
[mux.c sshpty.h clientloop.c sshtty.c]
     quell tc[gs]etattr warnings when forcing a tty (ssh -tt), since we
     usually don't actually have a tty to read/set; bz#1686 ok dtucker@
This commit is contained in:
Darren Tucker 2010-01-09 22:26:23 +11:00
parent 838891fe85
commit 37c1b3d6fc
5 changed files with 37 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
ChangeLog
View File

@ -16,6 +16,10 @@
- jmc@cvs.openbsd.org 2010/01/09 03:36:00 - jmc@cvs.openbsd.org 2010/01/09 03:36:00
[sftp-server.8] [sftp-server.8]
bad place to forget a comma... bad place to forget a comma...
- djm@cvs.openbsd.org 2010/01/09 05:04:24
[mux.c sshpty.h clientloop.c sshtty.c]
quell tc[gs]etattr warnings when forcing a tty (ssh -tt), since we
usually don't actually have a tty to read/set; bz#1686 ok dtucker@
20091208 20091208
- (dtucker) OpenBSD CVS Sync - (dtucker) OpenBSD CVS Sync

23
clientloop.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: clientloop.c,v 1.215 2009/11/17 05:31:44 djm Exp $ */ /* $OpenBSD: clientloop.c,v 1.216 2010/01/09 05:04:24 djm Exp $ */
/* /*
* Author: Tatu Ylonen <ylo@cs.hut.fi> * Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -130,6 +130,9 @@ extern int muxserver_sock;
*/ */
extern char *host; extern char *host;
/* Force TTY allocation */
extern int force_tty_flag;
/* /*
* Flag to indicate that we have received a window change signal which has * Flag to indicate that we have received a window change signal which has
* not yet been processed. This will cause a message indicating the new * not yet been processed. This will cause a message indicating the new
@ -610,7 +613,7 @@ client_suspend_self(Buffer *bin, Buffer *bout, Buffer *berr)
atomicio(vwrite, fileno(stderr), buffer_ptr(berr), atomicio(vwrite, fileno(stderr), buffer_ptr(berr),
buffer_len(berr)); buffer_len(berr));
leave_raw_mode(); leave_raw_mode(force_tty_flag);
/* /*
* Free (and clear) the buffer to reduce the amount of data that gets * Free (and clear) the buffer to reduce the amount of data that gets
@ -631,7 +634,7 @@ client_suspend_self(Buffer *bin, Buffer *bout, Buffer *berr)
buffer_init(bout); buffer_init(bout);
buffer_init(berr); buffer_init(berr);
enter_raw_mode(); enter_raw_mode(force_tty_flag);
} }
static void static void
@ -774,7 +777,7 @@ process_cmdline(void)
bzero(&fwd, sizeof(fwd)); bzero(&fwd, sizeof(fwd));
fwd.listen_host = fwd.connect_host = NULL; fwd.listen_host = fwd.connect_host = NULL;
leave_raw_mode(); leave_raw_mode(force_tty_flag);
handler = signal(SIGINT, SIG_IGN); handler = signal(SIGINT, SIG_IGN);
cmd = s = read_passphrase("\r\nssh> ", RP_ECHO); cmd = s = read_passphrase("\r\nssh> ", RP_ECHO);
if (s == NULL) if (s == NULL)
@ -877,7 +880,7 @@ process_cmdline(void)
out: out:
signal(SIGINT, handler); signal(SIGINT, handler);
enter_raw_mode(); enter_raw_mode(force_tty_flag);
if (cmd) if (cmd)
xfree(cmd); xfree(cmd);
if (fwd.listen_host != NULL) if (fwd.listen_host != NULL)
@ -996,7 +999,7 @@ process_escapes(Channel *c, Buffer *bin, Buffer *bout, Buffer *berr,
* more new connections). * more new connections).
*/ */
/* Restore tty modes. */ /* Restore tty modes. */
leave_raw_mode(); leave_raw_mode(force_tty_flag);
/* Stop listening for new connections. */ /* Stop listening for new connections. */
channel_stop_listening(); channel_stop_listening();
@ -1291,7 +1294,7 @@ client_channel_closed(int id, void *arg)
{ {
channel_cancel_cleanup(id); channel_cancel_cleanup(id);
session_closed = 1; session_closed = 1;
leave_raw_mode(); leave_raw_mode(force_tty_flag);
} }
/* /*
@ -1364,7 +1367,7 @@ client_loop(int have_pty, int escape_char_arg, int ssh2_chan_id)
signal(SIGWINCH, window_change_handler); signal(SIGWINCH, window_change_handler);
if (have_pty) if (have_pty)
enter_raw_mode(); enter_raw_mode(force_tty_flag);
if (compat20) { if (compat20) {
session_ident = ssh2_chan_id; session_ident = ssh2_chan_id;
@ -1498,7 +1501,7 @@ client_loop(int have_pty, int escape_char_arg, int ssh2_chan_id)
channel_free_all(); channel_free_all();
if (have_pty) if (have_pty)
leave_raw_mode(); leave_raw_mode(force_tty_flag);
/* restore blocking io */ /* restore blocking io */
if (!isatty(fileno(stdin))) if (!isatty(fileno(stdin)))
@ -2062,7 +2065,7 @@ client_init_dispatch(void)
void void
cleanup_exit(int i) cleanup_exit(int i)
{ {
leave_raw_mode(); leave_raw_mode(force_tty_flag);
leave_non_blocking(); leave_non_blocking();
if (options.control_path != NULL && muxserver_sock != -1) if (options.control_path != NULL && muxserver_sock != -1)
unlink(options.control_path); unlink(options.control_path);

7
mux.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: mux.c,v 1.8 2009/08/20 23:54:28 dtucker Exp $ */ /* $OpenBSD: mux.c,v 1.9 2010/01/09 05:04:24 djm Exp $ */
/* /*
* Copyright (c) 2002-2008 Damien Miller <djm@openbsd.org> * Copyright (c) 2002-2008 Damien Miller <djm@openbsd.org>
* *
@ -82,6 +82,7 @@
/* from ssh.c */ /* from ssh.c */
extern int tty_flag; extern int tty_flag;
extern int force_tty_flag;
extern Options options; extern Options options;
extern int stdin_null_flag; extern int stdin_null_flag;
extern char *host; extern char *host;
@ -683,7 +684,7 @@ muxclient(const char *path)
signal(SIGWINCH, control_client_sigrelay); signal(SIGWINCH, control_client_sigrelay);
if (tty_flag) if (tty_flag)
enter_raw_mode(); enter_raw_mode(force_tty_flag);
/* /*
* Stick around until the controlee closes the client_fd. * Stick around until the controlee closes the client_fd.
@ -708,7 +709,7 @@ muxclient(const char *path)
} }
close(sock); close(sock);
leave_raw_mode(); leave_raw_mode(force_tty_flag);
if (i > (int)sizeof(int)) if (i > (int)sizeof(int))
fatal("%s: master returned too much data (%d > %lu)", fatal("%s: master returned too much data (%d > %lu)",
__func__, i, (u_long)sizeof(int)); __func__, i, (u_long)sizeof(int));

6
sshpty.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: sshpty.h,v 1.11 2008/05/19 15:45:07 djm Exp $ */ /* $OpenBSD: sshpty.h,v 1.12 2010/01/09 05:04:24 djm Exp $ */
/* /*
* Author: Tatu Ylonen <ylo@cs.hut.fi> * Author: Tatu Ylonen <ylo@cs.hut.fi>
@ -17,8 +17,8 @@
#include <termios.h> #include <termios.h>
struct termios *get_saved_tio(void); struct termios *get_saved_tio(void);
void leave_raw_mode(void); void leave_raw_mode(int);
void enter_raw_mode(void); void enter_raw_mode(int);
int pty_allocate(int *, int *, char *, size_t); int pty_allocate(int *, int *, char *, size_t);
void pty_release(const char *); void pty_release(const char *);

23
sshtty.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: sshtty.c,v 1.13 2008/05/19 15:45:07 djm Exp $ */ /* $OpenBSD: sshtty.c,v 1.14 2010/01/09 05:04:24 djm Exp $ */
/* /*
* Author: Tatu Ylonen <ylo@cs.hut.fi> * Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -54,23 +54,25 @@ get_saved_tio(void)
} }
void void
leave_raw_mode(void) leave_raw_mode(int quiet)
{ {
if (!_in_raw_mode) if (!_in_raw_mode)
return; return;
if (tcsetattr(fileno(stdin), TCSADRAIN, &_saved_tio) == -1) if (tcsetattr(fileno(stdin), TCSADRAIN, &_saved_tio) == -1) {
perror("tcsetattr"); if (!quiet)
else perror("tcsetattr");
} else
_in_raw_mode = 0; _in_raw_mode = 0;
} }
void void
enter_raw_mode(void) enter_raw_mode(int quiet)
{ {
struct termios tio; struct termios tio;
if (tcgetattr(fileno(stdin), &tio) == -1) { if (tcgetattr(fileno(stdin), &tio) == -1) {
perror("tcgetattr"); if (!quiet)
perror("tcgetattr");
return; return;
} }
_saved_tio = tio; _saved_tio = tio;
@ -86,8 +88,9 @@ enter_raw_mode(void)
tio.c_oflag &= ~OPOST; tio.c_oflag &= ~OPOST;
tio.c_cc[VMIN] = 1; tio.c_cc[VMIN] = 1;
tio.c_cc[VTIME] = 0; tio.c_cc[VTIME] = 0;
if (tcsetattr(fileno(stdin), TCSADRAIN, &tio) == -1) if (tcsetattr(fileno(stdin), TCSADRAIN, &tio) == -1) {
perror("tcsetattr"); if (!quiet)
else perror("tcsetattr");
} else
_in_raw_mode = 1; _in_raw_mode = 1;
} }