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openssh-4.1p1-x11_forwarding.patch
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File openssh-4.1p1-x11_forwarding.patch of Package opensuse
--- channels.c +++ channels.c @@ -266,6 +266,7 @@ c->force_drain = 0; c->single_connection = 0; c->detach_user = NULL; + c->detach_close = 0; c->confirm = NULL; c->confirm_ctx = NULL; c->input_filter = NULL; @@ -625,7 +626,7 @@ c->confirm_ctx = ctx; } void -channel_register_cleanup(int id, channel_callback_fn *fn) +channel_register_cleanup(int id, channel_callback_fn *fn, int do_close) { Channel *c = channel_lookup(id); @@ -634,6 +635,7 @@ return; } c->detach_user = fn; + c->detach_close = do_close; } void channel_cancel_cleanup(int id) @@ -645,6 +647,7 @@ return; } c->detach_user = NULL; + c->detach_close = 0; } void channel_register_filter(int id, channel_filter_fn *fn) @@ -1662,7 +1665,7 @@ if (c == NULL) return; if (c->detach_user != NULL) { - if (!chan_is_dead(c, 0)) + if (!chan_is_dead(c, c->detach_close)) return; debug2("channel %d: gc: notify user", c->self); c->detach_user(c->self, NULL); --- channels.h +++ channels.h @@ -106,8 +106,9 @@ /* callback */ channel_callback_fn *confirm; - channel_callback_fn *detach_user; void *confirm_ctx; + channel_callback_fn *detach_user; + int detach_close; /* filter */ channel_filter_fn *input_filter; @@ -163,7 +164,7 @@ void channel_send_open(int); void channel_request_start(int, char *, int); -void channel_register_cleanup(int, channel_callback_fn *); +void channel_register_cleanup(int, channel_callback_fn *, int); void channel_register_confirm(int, channel_callback_fn *, void *); void channel_register_filter(int, channel_filter_fn *); void channel_cancel_cleanup(int); --- clientloop.c +++ clientloop.c @@ -1248,7 +1248,7 @@ simple_escape_filter); if (session_ident != -1) channel_register_cleanup(session_ident, - client_channel_closed); + client_channel_closed, 0); } else { /* Check if we should immediately send eof on stdin. */ client_check_initial_eof_on_stdin(); --- serverloop.c +++ serverloop.c @@ -900,7 +900,7 @@ channel_free(c); return NULL; } - channel_register_cleanup(c->self, session_close_by_channel); + channel_register_cleanup(c->self, session_close_by_channel, 0); return c; } --- session.c +++ session.c @@ -2158,7 +2158,6 @@ session_exit_message(Session *s, int status) { Channel *c; - u_int i; if ((c = channel_lookup(s->chanid)) == NULL) fatal("session_exit_message: session %d: no channel %d", @@ -2188,7 +2187,15 @@ /* disconnect channel */ debug("session_exit_message: release channel %d", s->chanid); - channel_cancel_cleanup(s->chanid); + s->pid = 0; + + /* + * Adjust cleanup callback attachment to send close messages when + * the channel gets EOF. The session will be then be closed + * by session_close_by_channel when the childs close their fds. + */ + channel_register_cleanup(c->self, session_close_by_channel, 1); + /* * emulate a write failure with 'chan_write_failed', nobody will be * interested in data we write. @@ -2197,15 +2204,6 @@ */ if (c->ostate != CHAN_OUTPUT_CLOSED) chan_write_failed(c); - s->chanid = -1; - - /* Close any X11 listeners associated with this session */ - if (s->x11_chanids != NULL) { - for (i = 0; s->x11_chanids[i] != -1; i++) { - session_close_x11(s->x11_chanids[i]); - s->x11_chanids[i] = -1; - } - } } void @@ -2278,7 +2276,8 @@ } if (s->chanid != -1) session_exit_message(s, status); - session_close(s); + if (s->ttyfd != -1) + session_pty_cleanup(s); } /* @@ -2289,6 +2288,8 @@ session_close_by_channel(int id, void *arg) { Session *s = session_by_channel(id); + u_int i; + if (s == NULL) { debug("session_close_by_channel: no session for id %d", id); return; @@ -2307,6 +2308,15 @@ } /* detach by removing callback */ channel_cancel_cleanup(s->chanid); + + /* Close any X11 listeners associated with this session */ + if (s->x11_chanids != NULL) { + for (i = 0; s->x11_chanids[i] != -1; i++) { + session_close_x11(s->x11_chanids[i]); + s->x11_chanids[i] = -1; + } + } + s->chanid = -1; session_close(s); } @@ -2401,7 +2411,7 @@ } for (i = 0; s->x11_chanids[i] != -1; i++) { channel_register_cleanup(s->x11_chanids[i], - session_close_single_x11); + session_close_single_x11, 0); } /* Set up a suitable value for the DISPLAY variable. */
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