- markus@cvs.openbsd.org 2001/06/12 16:10:38
[session.c]
merge ssh1/ssh2 tty msg parse and alloc code
This commit is contained in:
Ben Lindstrom
parent
7eaf8e4e26
commit
49c126044d
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@ -4,6 +4,9 @@
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[session.c]
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merge session_free into session_close()
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merge pty_cleanup_proc into session_pty_cleanup()
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- markus@cvs.openbsd.org 2001/06/12 16:10:38
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[session.c]
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merge ssh1/ssh2 tty msg parse and alloc code
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20010612
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- scp.c ID update (upstream synced vfsprintf() from us)
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@ -5623,4 +5626,4 @@
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- Wrote replacements for strlcpy and mkdtemp
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- Released 1.0pre1
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$Id: ChangeLog,v 1.1281 2001/06/13 04:35:43 mouring Exp $
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$Id: ChangeLog,v 1.1282 2001/06/13 04:37:36 mouring Exp $
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84
session.c
84
session.c
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@ -33,7 +33,7 @@
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*/
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#include "includes.h"
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RCSID("$OpenBSD: session.c,v 1.85 2001/06/12 10:58:29 markus Exp $");
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RCSID("$OpenBSD: session.c,v 1.86 2001/06/12 16:10:38 markus Exp $");
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#include "ssh.h"
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#include "ssh1.h"
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@ -122,6 +122,7 @@ struct Session {
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Session *session_new(void);
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void session_set_fds(Session *s, int fdin, int fdout, int fderr);
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void session_pty_cleanup(void *session);
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int session_pty_req(Session *s);
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void session_proctitle(Session *s);
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int session_setup_x11fwd(Session *s);
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void session_close(Session *s);
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@ -242,7 +243,7 @@ do_authenticated1(Authctxt *authctxt)
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{
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Session *s;
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char *command;
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int success, type, n_bytes, plen, screen_flag, have_pty = 0;
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int success, type, plen, screen_flag;
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int compression_level = 0, enable_compression_after_reply = 0;
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u_int proto_len, data_len, dlen;
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@ -275,51 +276,7 @@ do_authenticated1(Authctxt *authctxt)
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break;
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case SSH_CMSG_REQUEST_PTY:
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if (no_pty_flag) {
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debug("Allocating a pty not permitted for this authentication.");
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break;
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}
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if (have_pty)
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packet_disconnect("Protocol error: you already have a pty.");
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debug("Allocating pty.");
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/* Allocate a pty and open it. */
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if (!pty_allocate(&s->ptyfd, &s->ttyfd, s->tty,
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sizeof(s->tty))) {
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error("Failed to allocate pty.");
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break;
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}
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fatal_add_cleanup(session_pty_cleanup, (void *)s);
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pty_setowner(s->pw, s->tty);
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/* Get TERM from the packet. Note that the value may be of arbitrary length. */
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s->term = packet_get_string(&dlen);
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packet_integrity_check(dlen, strlen(s->term), type);
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/* packet_integrity_check(plen, 4 + dlen + 4*4 + n_bytes, type); */
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/* Remaining bytes */
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n_bytes = plen - (4 + dlen + 4 * 4);
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if (strcmp(s->term, "") == 0) {
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xfree(s->term);
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s->term = NULL;
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}
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/* Get window size from the packet. */
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s->row = packet_get_int();
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s->col = packet_get_int();
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s->xpixel = packet_get_int();
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s->ypixel = packet_get_int();
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pty_change_window_size(s->ptyfd, s->row, s->col, s->xpixel, s->ypixel);
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/* Get tty modes from the packet. */
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tty_parse_modes(s->ttyfd, &n_bytes);
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packet_integrity_check(plen, 4 + dlen + 4 * 4 + n_bytes, type);
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session_proctitle(s);
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/* Indicate that we now have a pty. */
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success = 1;
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have_pty = 1;
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success = session_pty_req(s);
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break;
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case SSH_CMSG_X11_REQUEST_FORWARDING:
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@ -391,7 +348,7 @@ do_authenticated1(Authctxt *authctxt)
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command = forced_command;
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debug("Forced command '%.500s'", forced_command);
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}
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if (have_pty)
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if (s->ttyfd != -1)
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do_exec_pty(s, command);
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else
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do_exec_no_pty(s, command);
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@ -1631,13 +1588,24 @@ session_pty_req(Session *s)
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u_int len;
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int n_bytes;
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if (no_pty_flag)
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if (no_pty_flag) {
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debug("Allocating a pty not permitted for this authentication.");
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return 0;
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if (s->ttyfd != -1)
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}
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if (s->ttyfd != -1) {
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packet_disconnect("Protocol error: you already have a pty.");
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return 0;
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}
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s->term = packet_get_string(&len);
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if (compat20) {
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s->col = packet_get_int();
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s->row = packet_get_int();
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} else {
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s->row = packet_get_int();
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s->col = packet_get_int();
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}
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s->xpixel = packet_get_int();
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s->ypixel = packet_get_int();
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@ -1645,8 +1613,11 @@ session_pty_req(Session *s)
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xfree(s->term);
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s->term = NULL;
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}
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/* Allocate a pty and open it. */
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debug("Allocating pty.");
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if (!pty_allocate(&s->ptyfd, &s->ttyfd, s->tty, sizeof(s->tty))) {
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if (s->term)
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xfree(s->term);
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s->term = NULL;
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s->ptyfd = -1;
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@ -1655,21 +1626,24 @@ session_pty_req(Session *s)
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return 0;
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}
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debug("session_pty_req: session %d alloc %s", s->self, s->tty);
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/* for SSH1 the tty modes length is not given */
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if (!compat20)
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n_bytes = packet_remaining();
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tty_parse_modes(s->ttyfd, &n_bytes);
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/*
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* Add a cleanup function to clear the utmp entry and record logout
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* time in case we call fatal() (e.g., the connection gets closed).
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*/
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fatal_add_cleanup(session_pty_cleanup, (void *)s);
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pty_setowner(s->pw, s->tty);
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/* Get window size from the packet. */
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/* Set window size from the packet. */
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pty_change_window_size(s->ptyfd, s->row, s->col, s->xpixel, s->ypixel);
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/* Get tty modes from the packet. */
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tty_parse_modes(s->ttyfd, &n_bytes);
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packet_done();
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session_proctitle(s);
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return 1;
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}
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