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authortcunha <tcunha>2010-10-24 01:51:34 (GMT)
committer Raghavendra D Prabhu <[email protected]>2011-01-02 18:59:31 (GMT)
commitf8920529ff7b847057c9766e8ec6f16502a9d4b5 (patch) (side-by-side diff)
tree3165d30c778ee68393f9e83d7647d0f1224d0bbd
parent216c955129c64085b923c7e67b8215d247548af4 (diff)
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Ugh. Don't know how this happened, but make it compile by removing duplicate
code.
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--server-client.c950
1 files changed, 1 insertions, 949 deletions
diff --git a/server-client.c b/server-client.c
index c2a7f66..6ff4995 100644
--- a/server-client.c
+++ b/server-client.c
@@ -1,4 +1,4 @@
-/* $Id: server-client.c,v 1.44 2010/10/24 00:50:11 tcunha Exp $ */
+/* $Id: server-client.c,v 1.45 2010/10/24 01:51:34 tcunha Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <[email protected]>
@@ -938,951 +938,3 @@ server_client_msg_shell(struct client *c)
server_write_client(c, MSG_SHELL, &data, sizeof data);
c->flags |= CLIENT_BAD; /* it will die after exec */
}
-/* $Id: server-client.c,v 1.44 2010/10/24 00:50:11 tcunha Exp $ */
-
-/*
- * Copyright (c) 2009 Nicholas Marriott <[email protected]>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
- * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
- * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <sys/types.h>
-
-#include <event.h>
-#include <fcntl.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-
-#include "tmux.h"
-
-void server_client_handle_key(int, struct mouse_event *, void *);
-void server_client_repeat_timer(int, short, void *);
-void server_client_check_exit(struct client *);
-void server_client_check_backoff(struct client *);
-void server_client_check_redraw(struct client *);
-void server_client_set_title(struct client *);
-void server_client_reset_state(struct client *);
-void server_client_in_callback(struct bufferevent *, short, void *);
-void server_client_out_callback(struct bufferevent *, short, void *);
-void server_client_err_callback(struct bufferevent *, short, void *);
-
-int server_client_msg_dispatch(struct client *);
-void server_client_msg_command(struct client *, struct msg_command_data *);
-void server_client_msg_identify(
- struct client *, struct msg_identify_data *, int);
-void server_client_msg_shell(struct client *);
-
-void printflike2 server_client_msg_error(struct cmd_ctx *, const char *, ...);
-void printflike2 server_client_msg_print(struct cmd_ctx *, const char *, ...);
-void printflike2 server_client_msg_info(struct cmd_ctx *, const char *, ...);
-
-/* Create a new client. */
-void
-server_client_create(int fd)
-{
- struct client *c;
- int mode;
- u_int i;
-
- if ((mode = fcntl(fd, F_GETFL)) == -1)
- fatal("fcntl failed");
- if (fcntl(fd, F_SETFL, mode|O_NONBLOCK) == -1)
- fatal("fcntl failed");
- if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
- fatal("fcntl failed");
-
- c = xcalloc(1, sizeof *c);
- c->references = 0;
- imsg_init(&c->ibuf, fd);
- server_update_event(c);
-
- if (gettimeofday(&c->creation_time, NULL) != 0)
- fatal("gettimeofday failed");
- memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
-
- ARRAY_INIT(&c->prompt_hdata);
-
- c->stdin_event = NULL;
- c->stdout_event = NULL;
- c->stderr_event = NULL;
-
- c->tty.fd = -1;
- c->title = NULL;
-
- c->session = NULL;
- c->tty.sx = 80;
- c->tty.sy = 24;
-
- screen_init(&c->status, c->tty.sx, 1, 0);
- job_tree_init(&c->status_jobs);
-
- c->message_string = NULL;
- ARRAY_INIT(&c->message_log);
-
- c->prompt_string = NULL;
- c->prompt_buffer = NULL;
- c->prompt_index = 0;
-
- evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
-
- for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
- if (ARRAY_ITEM(&clients, i) == NULL) {
- ARRAY_SET(&clients, i, c);
- return;
- }
- }
- ARRAY_ADD(&clients, c);
- log_debug("new client %d", fd);
-}
-
-/* Lost a client. */
-void
-server_client_lost(struct client *c)
-{
- struct message_entry *msg;
- u_int i;
-
- for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
- if (ARRAY_ITEM(&clients, i) == c)
- ARRAY_SET(&clients, i, NULL);
- }
- log_debug("lost client %d", c->ibuf.fd);
-
- /*
- * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
- * and tty_free might close an unrelated fd.
- */
- if (c->flags & CLIENT_TERMINAL)
- tty_free(&c->tty);
-
- if (c->stdin_fd != -1)
- close(c->stdin_fd);
- if (c->stdin_event != NULL)
- bufferevent_free(c->stdin_event);
- if (c->stdout_fd != -1)
- close(c->stdout_fd);
- if (c->stdout_event != NULL)
- bufferevent_free(c->stdout_event);
- if (c->stderr_fd != -1)
- close(c->stderr_fd);
- if (c->stderr_event != NULL)
- bufferevent_free(c->stderr_event);
-
- screen_free(&c->status);
- job_tree_free(&c->status_jobs);
-
- if (c->title != NULL)
- xfree(c->title);
-
- evtimer_del(&c->repeat_timer);
-
- evtimer_del(&c->identify_timer);
-
- if (c->message_string != NULL)
- xfree(c->message_string);
- evtimer_del(&c->message_timer);
- for (i = 0; i < ARRAY_LENGTH(&c->message_log); i++) {
- msg = &ARRAY_ITEM(&c->message_log, i);
- xfree(msg->msg);
- }
- ARRAY_FREE(&c->message_log);
-
- if (c->prompt_string != NULL)
- xfree(c->prompt_string);
- if (c->prompt_buffer != NULL)
- xfree(c->prompt_buffer);
- for (i = 0; i < ARRAY_LENGTH(&c->prompt_hdata); i++)
- xfree(ARRAY_ITEM(&c->prompt_hdata, i));
- ARRAY_FREE(&c->prompt_hdata);
-
- if (c->cwd != NULL)
- xfree(c->cwd);
-
- close(c->ibuf.fd);
- imsg_clear(&c->ibuf);
- event_del(&c->event);
-
- for (i = 0; i < ARRAY_LENGTH(&dead_clients); i++) {
- if (ARRAY_ITEM(&dead_clients, i) == NULL) {
- ARRAY_SET(&dead_clients, i, c);
- break;
- }
- }
- if (i == ARRAY_LENGTH(&dead_clients))
- ARRAY_ADD(&dead_clients, c);
- c->flags |= CLIENT_DEAD;
-
- recalculate_sizes();
- server_check_unattached();
- server_update_socket();
-}
-
-/* Process a single client event. */
-void
-server_client_callback(int fd, short events, void *data)
-{
- struct client *c = data;
-
- if (c->flags & CLIENT_DEAD)
- return;
-
- if (fd == c->ibuf.fd) {
- if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) < 0)
- goto client_lost;
-
- if (c->flags & CLIENT_BAD) {
- if (c->ibuf.w.queued == 0)
- goto client_lost;
- return;
- }
-
- if (events & EV_READ && server_client_msg_dispatch(c) != 0)
- goto client_lost;
- }
-
- server_update_event(c);
- return;
-
-client_lost:
- server_client_lost(c);
-}
-
-/* Handle client status timer. */
-void
-server_client_status_timer(void)
-{
- struct client *c;
- struct session *s;
- struct job *job;
- struct timeval tv;
- u_int i;
- int interval;
- time_t difference;
-
- if (gettimeofday(&tv, NULL) != 0)
- fatal("gettimeofday failed");
-
- for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
- c = ARRAY_ITEM(&clients, i);
- if (c == NULL || c->session == NULL)
- continue;
- if (c->message_string != NULL || c->prompt_string != NULL) {
- /*
- * Don't need timed redraw for messages/prompts so bail
- * now. The status timer isn't reset when they are
- * redrawn anyway.
- */
- continue;
- }
- s = c->session;
-
- if (!options_get_number(&s->options, "status"))
- continue;
- interval = options_get_number(&s->options, "status-interval");
-
- difference = tv.tv_sec - c->status_timer.tv_sec;
- if (difference >= interval) {
- RB_FOREACH(job, jobs, &c->status_jobs)
- job_run(job);
- c->flags |= CLIENT_STATUS;
- }
- }
-}
-
-/* Handle data key input from client. */
-void
-server_client_handle_key(int key, struct mouse_event *mouse, void *data)
-{
- struct client *c = data;
- struct session *s;
- struct window *w;
- struct window_pane *wp;
- struct options *oo;
- struct timeval tv;
- struct key_binding *bd;
- struct keylist *keylist;
- int xtimeout, isprefix;
- u_int i;
-
- /* Check the client is good to accept input. */
- if ((c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
- return;
- if (c->session == NULL)
- return;
- s = c->session;
-
- /* Update the activity timer. */
- if (gettimeofday(&c->activity_time, NULL) != 0)
- fatal("gettimeofday failed");
- memcpy(&s->activity_time, &c->activity_time, sizeof s->activity_time);
-
- w = c->session->curw->window;
- wp = w->active;
- oo = &c->session->options;
-
- /* Special case: number keys jump to pane in identify mode. */
- if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
- if (c->flags & CLIENT_READONLY)
- return;
- wp = window_pane_at_index(w, key - '0');
- if (wp != NULL && window_pane_visible(wp))
- window_set_active_pane(w, wp);
- server_clear_identify(c);
- return;
- }
-
- /* Handle status line. */
- if (!(c->flags & CLIENT_READONLY)) {
- status_message_clear(c);
- server_clear_identify(c);
- }
- if (c->prompt_string != NULL) {
- if (!(c->flags & CLIENT_READONLY))
- status_prompt_key(c, key);
- return;
- }
-
- /* Check for mouse keys. */
- if (key == KEYC_MOUSE) {
- if (c->flags & CLIENT_READONLY)
- return;
- if (options_get_number(oo, "mouse-select-pane")) {
- window_set_active_at(w, mouse->x, mouse->y);
- server_redraw_window_borders(w);
- wp = w->active;
- }
- window_pane_mouse(wp, c->session, mouse);
- return;
- }
-
- /* Is this a prefix key? */
- keylist = options_get_data(&c->session->options, "prefix");
- isprefix = 0;
- for (i = 0; i < ARRAY_LENGTH(keylist); i++) {
- if (key == ARRAY_ITEM(keylist, i)) {
- isprefix = 1;
- break;
- }
- }
-
- /* No previous prefix key. */
- if (!(c->flags & CLIENT_PREFIX)) {
- if (isprefix)
- c->flags |= CLIENT_PREFIX;
- else {
- /* Try as a non-prefix key binding. */
- if ((bd = key_bindings_lookup(key)) == NULL) {
- if (!(c->flags & CLIENT_READONLY))
- window_pane_key(wp, c->session, key);
- } else
- key_bindings_dispatch(bd, c);
- }
- return;
- }
-
- /* Prefix key already pressed. Reset prefix and lookup key. */
- c->flags &= ~CLIENT_PREFIX;
- if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
- /* If repeating, treat this as a key, else ignore. */
- if (c->flags & CLIENT_REPEAT) {
- c->flags &= ~CLIENT_REPEAT;
- if (isprefix)
- c->flags |= CLIENT_PREFIX;
- else if (!(c->flags & CLIENT_READONLY))
- window_pane_key(wp, c->session, key);
- }
- return;
- }
-
- /* If already repeating, but this key can't repeat, skip it. */
- if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
- c->flags &= ~CLIENT_REPEAT;
- if (isprefix)
- c->flags |= CLIENT_PREFIX;
- else if (!(c->flags & CLIENT_READONLY))
- window_pane_key(wp, c->session, key);
- return;
- }
-
- /* If this key can repeat, reset the repeat flags and timer. */
- xtimeout = options_get_number(&c->session->options, "repeat-time");
- if (xtimeout != 0 && bd->can_repeat) {
- c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
-
- tv.tv_sec = xtimeout / 1000;
- tv.tv_usec = (xtimeout % 1000) * 1000L;
- evtimer_del(&c->repeat_timer);
- evtimer_add(&c->repeat_timer, &tv);
- }
-
- /* Dispatch the command. */
- key_bindings_dispatch(bd, c);
-}
-
-/* Client functions that need to happen every loop. */
-void
-server_client_loop(void)
-{
- struct client *c;
- struct window *w;
- struct window_pane *wp;
- u_int i;
-
- for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
- c = ARRAY_ITEM(&clients, i);
- if (c == NULL)
- continue;
-
- server_client_check_exit(c);
- if (c->session != NULL) {
- server_client_check_redraw(c);
- server_client_reset_state(c);
- }
- }
-
- /*
- * Any windows will have been redrawn as part of clients, so clear
- * their flags now.
- */
- for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
- w = ARRAY_ITEM(&windows, i);
- if (w == NULL)
- continue;
-
- w->flags &= ~WINDOW_REDRAW;
- TAILQ_FOREACH(wp, &w->panes, entry)
- wp->flags &= ~PANE_REDRAW;
- }
-}
-
-/*
- * Update cursor position and mode settings. The scroll region and attributes
- * are cleared when idle (waiting for an event) as this is the most likely time
- * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
- * compromise between excessive resets and likelihood of an interrupt.
- *
- * tty_region/tty_reset/tty_update_mode already take care of not resetting
- * things that are already in their default state.
- */
-void
-server_client_reset_state(struct client *c)
-{
- struct window *w = c->session->curw->window;
- struct window_pane *wp = w->active;
- struct screen *s = wp->screen;
- struct options *oo = &c->session->options;
- int status, mode;
-
- tty_region(&c->tty, 0, c->tty.sy - 1);
-
- status = options_get_number(oo, "status");
- if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
- tty_cursor(&c->tty, 0, 0);
- else
- tty_cursor(&c->tty, wp->xoff + s->cx, wp->yoff + s->cy);
-
- mode = s->mode;
- if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
- options_get_number(oo, "mouse-select-pane"))
- mode |= MODE_MOUSE;
- tty_update_mode(&c->tty, mode);
- tty_reset(&c->tty);
-}
-
-/* Repeat time callback. */
-/* ARGSUSED */
-void
-server_client_repeat_timer(unused int fd, unused short events, void *data)
-{
- struct client *c = data;
-
- if (c->flags & CLIENT_REPEAT)
- c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
-}
-
-/* Check if client should be exited. */
-void
-server_client_check_exit(struct client *c)
-{
- struct msg_exit_data exitdata;
-
- if (!(c->flags & CLIENT_EXIT))
- return;
-
- if (c->stdout_fd != -1 && c->stdout_event != NULL &&
- EVBUFFER_LENGTH(c->stdout_event->output) != 0)
- return;
- if (c->stderr_fd != -1 && c->stderr_event != NULL &&
- EVBUFFER_LENGTH(c->stderr_event->output) != 0)
- return;
-
- exitdata.retcode = c->retcode;
- server_write_client(c, MSG_EXIT, &exitdata, sizeof exitdata);
-
- c->flags &= ~CLIENT_EXIT;
-}
-
-/*
- * Check if the client should backoff. During backoff, data from external
- * programs is not written to the terminal. When the existing data drains, the
- * client is redrawn.
- *
- * There are two backoff phases - both the tty and client have backoff flags -
- * the first to allow existing data to drain and the latter to ensure backoff
- * is disabled until the redraw has finished and prevent the redraw triggering
- * another backoff.
- */
-void
-server_client_check_backoff(struct client *c)
-{
- struct tty *tty = &c->tty;
- size_t used;
-
- used = EVBUFFER_LENGTH(tty->event->output);
-
- /*
- * If in the second backoff phase (redrawing), don't check backoff
- * until the redraw has completed (or enough of it to drop below the
- * backoff threshold).
- */
- if (c->flags & CLIENT_BACKOFF) {
- if (used > BACKOFF_THRESHOLD)
- return;
- c->flags &= ~CLIENT_BACKOFF;
- return;
- }
-
- /* Once drained, allow data through again and schedule redraw. */
- if (tty->flags & TTY_BACKOFF) {
- if (used != 0)
- return;
- tty->flags &= ~TTY_BACKOFF;
- c->flags |= (CLIENT_BACKOFF|CLIENT_REDRAWWINDOW|CLIENT_STATUS);
- return;
- }
-
- /* If too much data, start backoff. */
- if (used > BACKOFF_THRESHOLD)
- tty->flags |= TTY_BACKOFF;
-}
-
-/* Check for client redraws. */
-void
-server_client_check_redraw(struct client *c)
-{
- struct session *s = c->session;
- struct window_pane *wp;
- int flags, redraw;
-
- flags = c->tty.flags & TTY_FREEZE;
- c->tty.flags &= ~TTY_FREEZE;
-
- if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
- if (options_get_number(&s->options, "set-titles"))
- server_client_set_title(c);
-
- if (c->message_string != NULL)
- redraw = status_message_redraw(c);
- else if (c->prompt_string != NULL)
- redraw = status_prompt_redraw(c);
- else
- redraw = status_redraw(c);
- if (!redraw)
- c->flags &= ~CLIENT_STATUS;
- }
-
- if (c->flags & CLIENT_REDRAW) {
- screen_redraw_screen(c, 0, 0);
- c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
- } else if (c->flags & CLIENT_REDRAWWINDOW) {
- TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry)
- screen_redraw_pane(c, wp);
- c->flags &= ~CLIENT_REDRAWWINDOW;
- } else {
- TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
- if (wp->flags & PANE_REDRAW)
- screen_redraw_pane(c, wp);
- }
- }
-
- if (c->flags & CLIENT_BORDERS)
- screen_redraw_screen(c, 0, 1);
-
- if (c->flags & CLIENT_STATUS)
- screen_redraw_screen(c, 1, 0);
-
- c->tty.flags |= flags;
-
- c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS|CLIENT_BORDERS);
-}
-
-/* Set client title. */
-void
-server_client_set_title(struct client *c)
-{
- struct session *s = c->session;
- const char *template;
- char *title;
-
- template = options_get_string(&s->options, "set-titles-string");
-
- title = status_replace(c, NULL, template, time(NULL), 1);
- if (c->title == NULL || strcmp(title, c->title) != 0) {
- if (c->title != NULL)
- xfree(c->title);
- c->title = xstrdup(title);
- tty_set_title(&c->tty, c->title);
- }
- xfree(title);
-}
-
-/*
- * Error callback for client stdin. Caller must increase reference count when
- * enabling event!
- */
-void
-server_client_in_callback(
- unused struct bufferevent *bufev, unused short what, void *data)
-{
- struct client *c = data;
-
- c->references--;
- if (c->flags & CLIENT_DEAD)
- return;
-
- bufferevent_disable(c->stdin_event, EV_READ|EV_WRITE);
- close(c->stdin_fd);
- c->stdin_fd = -1;
-
- if (c->stdin_callback != NULL)
- c->stdin_callback(c, c->stdin_data);
-}
-
-/* Error callback for client stdout. */
-void
-server_client_out_callback(
- unused struct bufferevent *bufev, unused short what, unused void *data)
-{
- struct client *c = data;
-
- bufferevent_disable(c->stdout_event, EV_READ|EV_WRITE);
- close(c->stdout_fd);
- c->stdout_fd = -1;
-}
-
-/* Error callback for client stderr. */
-void
-server_client_err_callback(
- unused struct bufferevent *bufev, unused short what, unused void *data)
-{
- struct client *c = data;
-
- bufferevent_disable(c->stderr_event, EV_READ|EV_WRITE);
- close(c->stderr_fd);
- c->stderr_fd = -1;
-}
-
-/* Dispatch message from client. */
-int
-server_client_msg_dispatch(struct client *c)
-{
- struct imsg imsg;
- struct msg_command_data commanddata;
- struct msg_identify_data identifydata;
- struct msg_environ_data environdata;
- ssize_t n, datalen;
- int mode;
-
- if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
- return (-1);
-
- for (;;) {
- if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
- return (-1);
- if (n == 0)
- return (0);
- datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
-
- if (imsg.hdr.peerid != PROTOCOL_VERSION) {
- server_write_client(c, MSG_VERSION, NULL, 0);
- c->flags |= CLIENT_BAD;
- imsg_free(&imsg);
- continue;
- }
-
- log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
- switch (imsg.hdr.type) {
- case MSG_COMMAND:
- if (datalen != sizeof commanddata)
- fatalx("bad MSG_COMMAND size");
- memcpy(&commanddata, imsg.data, sizeof commanddata);
-
- server_client_msg_command(c, &commanddata);
- break;
- case MSG_IDENTIFY:
- if (datalen != sizeof identifydata)
- fatalx("bad MSG_IDENTIFY size");
- if (imsg.fd == -1)
- fatalx("MSG_IDENTIFY missing fd");
- memcpy(&identifydata, imsg.data, sizeof identifydata);
-
- c->stdin_fd = imsg.fd;
- c->stdin_event = bufferevent_new(c->stdin_fd,
- NULL, NULL, server_client_in_callback, c);
- if (c->stdin_event == NULL)
- fatalx("failed to create stdin event");
-
- if ((mode = fcntl(c->stdin_fd, F_GETFL)) != -1)
- fcntl(c->stdin_fd, F_SETFL, mode|O_NONBLOCK);
- if (fcntl(c->stdin_fd, F_SETFD, FD_CLOEXEC) == -1)
- fatal("fcntl failed");
-
- server_client_msg_identify(c, &identifydata, imsg.fd);
- break;
- case MSG_STDOUT:
- if (datalen != 0)
- fatalx("bad MSG_STDOUT size");
- if (imsg.fd == -1)
- fatalx("MSG_STDOUT missing fd");
-
- c->stdout_fd = imsg.fd;
- c->stdout_event = bufferevent_new(c->stdout_fd,
- NULL, NULL, server_client_out_callback, c);
- if (c->stdout_event == NULL)
- fatalx("failed to create stdout event");
-
- if ((mode = fcntl(c->stdout_fd, F_GETFL)) != -1)
- fcntl(c->stdout_fd, F_SETFL, mode|O_NONBLOCK);
- if (fcntl(c->stdout_fd, F_SETFD, FD_CLOEXEC) == -1)
- fatal("fcntl failed");
- break;
- case MSG_STDERR:
- if (datalen != 0)
- fatalx("bad MSG_STDERR size");
- if (imsg.fd == -1)
- fatalx("MSG_STDERR missing fd");
-
- c->stderr_fd = imsg.fd;
- c->stderr_event = bufferevent_new(c->stderr_fd,
- NULL, NULL, server_client_err_callback, c);
- if (c->stderr_event == NULL)
- fatalx("failed to create stderr event");
-
- if ((mode = fcntl(c->stderr_fd, F_GETFL)) != -1)
- fcntl(c->stderr_fd, F_SETFL, mode|O_NONBLOCK);
- if (fcntl(c->stderr_fd, F_SETFD, FD_CLOEXEC) == -1)
- fatal("fcntl failed");
- break;
- case MSG_RESIZE:
- if (datalen != 0)
- fatalx("bad MSG_RESIZE size");
-
- if (tty_resize(&c->tty)) {
- recalculate_sizes();
- server_redraw_client(c);
- }
- break;
- case MSG_EXITING:
- if (datalen != 0)
- fatalx("bad MSG_EXITING size");
-
- c->session = NULL;
- tty_close(&c->tty);
- server_write_client(c, MSG_EXITED, NULL, 0);
- break;
- case MSG_WAKEUP:
- case MSG_UNLOCK:
- if (datalen != 0)
- fatalx("bad MSG_WAKEUP size");
-
- if (!(c->flags & CLIENT_SUSPENDED))
- break;
- c->flags &= ~CLIENT_SUSPENDED;
-
- if (gettimeofday(&c->activity_time, NULL) != 0)
- fatal("gettimeofday");
- if (c->session != NULL) {
- memcpy(&c->session->activity_time,
- &c->activity_time,
- sizeof c->session->activity_time);
- }
-
- tty_start_tty(&c->tty);
- server_redraw_client(c);
- recalculate_sizes();
- break;
- case MSG_ENVIRON:
- if (datalen != sizeof environdata)
- fatalx("bad MSG_ENVIRON size");
- memcpy(&environdata, imsg.data, sizeof environdata);
-
- environdata.var[(sizeof environdata.var) - 1] = '\0';
- if (strchr(environdata.var, '=') != NULL)
- environ_put(&c->environ, environdata.var);
- break;
- case MSG_SHELL:
- if (datalen != 0)
- fatalx("bad MSG_SHELL size");
-
- server_client_msg_shell(c);
- break;
- default:
- fatalx("unexpected message");
- }
-
- imsg_free(&imsg);
- }
-}
-
-/* Callback to send error message to client. */
-void printflike2
-server_client_msg_error(struct cmd_ctx *ctx, const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- evbuffer_add_vprintf(ctx->cmdclient->stderr_event->output, fmt, ap);
- va_end(ap);
-
- bufferevent_write(ctx->cmdclient->stderr_event, "\n", 1);
- ctx->cmdclient->retcode = 1;
-}
-
-/* Callback to send print message to client. */
-void printflike2
-server_client_msg_print(struct cmd_ctx *ctx, const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- evbuffer_add_vprintf(ctx->cmdclient->stdout_event->output, fmt, ap);
- va_end(ap);
-
- bufferevent_write(ctx->cmdclient->stdout_event, "\n", 1);
-}
-
-/* Callback to send print message to client, if not quiet. */
-void printflike2
-server_client_msg_info(struct cmd_ctx *ctx, const char *fmt, ...)
-{
- va_list ap;
-
- if (options_get_number(&global_options, "quiet"))
- return;
-
- va_start(ap, fmt);
- evbuffer_add_vprintf(ctx->cmdclient->stdout_event->output, fmt, ap);
- va_end(ap);
-
- bufferevent_write(ctx->cmdclient->stdout_event, "\n", 1);
-}
-
-/* Handle command message. */
-void
-server_client_msg_command(struct client *c, struct msg_command_data *data)
-{
- struct cmd_ctx ctx;
- struct cmd_list *cmdlist = NULL;
- int argc;
- char **argv, *cause;
-
- ctx.error = server_client_msg_error;
- ctx.print = server_client_msg_print;
- ctx.info = server_client_msg_info;
-
- ctx.msgdata = data;
- ctx.curclient = NULL;
-
- ctx.cmdclient = c;
-
- argc = data->argc;
- data->argv[(sizeof data->argv) - 1] = '\0';
- if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
- server_client_msg_error(&ctx, "command too long");
- goto error;
- }
-
- if (argc == 0) {
- argc = 1;
- argv = xcalloc(1, sizeof *argv);
- *argv = xstrdup("new-session");
- }
-
- if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
- server_client_msg_error(&ctx, "%s", cause);
- cmd_free_argv(argc, argv);
- goto error;
- }
- cmd_free_argv(argc, argv);
-
- if (cmd_list_exec(cmdlist, &ctx) != 1)
- c->flags |= CLIENT_EXIT;
- cmd_list_free(cmdlist);
- return;
-
-error:
- if (cmdlist != NULL)
- cmd_list_free(cmdlist);
- c->flags |= CLIENT_EXIT;
-}
-
-/* Handle identify message. */
-void
-server_client_msg_identify(
- struct client *c, struct msg_identify_data *data, int fd)
-{
- int tty_fd;
-
- c->cwd = NULL;
- data->cwd[(sizeof data->cwd) - 1] = '\0';
- if (*data->cwd != '\0')
- c->cwd = xstrdup(data->cwd);
-
- if (!isatty(fd))
- return;
- if ((tty_fd = dup(fd)) == -1)
- fatal("dup failed");
- data->term[(sizeof data->term) - 1] = '\0';
- tty_init(&c->tty, tty_fd, data->term);
- if (data->flags & IDENTIFY_UTF8)
- c->tty.flags |= TTY_UTF8;
- if (data->flags & IDENTIFY_256COLOURS)
- c->tty.term_flags |= TERM_256COLOURS;
- else if (data->flags & IDENTIFY_88COLOURS)
- c->tty.term_flags |= TERM_88COLOURS;
- c->tty.key_callback = server_client_handle_key;
- c->tty.key_data = c;
-
- tty_resize(&c->tty);
-
- c->flags |= CLIENT_TERMINAL;
-}
-
-/* Handle shell message. */
-void
-server_client_msg_shell(struct client *c)
-{
- struct msg_shell_data data;
- const char *shell;
-
- shell = options_get_string(&global_s_options, "default-shell");
-
- if (*shell == '\0' || areshell(shell))
- shell = _PATH_BSHELL;
- if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
- strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
-
- server_write_client(c, MSG_SHELL, &data, sizeof data);
- c->flags |= CLIENT_BAD; /* it will die after exec */
-}