mirror of
https://github.com/tmux/tmux.git
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188 lines
4.8 KiB
C
188 lines
4.8 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "tmux.h"
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/*
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* Attach existing session to the current terminal.
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*/
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enum cmd_retval cmd_attach_session_exec(struct cmd *, struct cmd_q *);
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const struct cmd_entry cmd_attach_session_entry = {
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"attach-session", "attach",
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"c:drt:", 0, 0,
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"[-dr] [-c working-directory] " CMD_TARGET_SESSION_USAGE,
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CMD_CANTNEST|CMD_STARTSERVER,
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cmd_attach_session_exec
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};
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enum cmd_retval
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cmd_attach_session(struct cmd_q *cmdq, const char *tflag, int dflag, int rflag,
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const char *cflag)
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{
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struct session *s;
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struct client *c;
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struct winlink *wl = NULL;
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struct window *w = NULL;
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struct window_pane *wp = NULL;
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const char *update;
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char *cause;
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int fd;
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struct format_tree *ft;
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char *cp;
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if (RB_EMPTY(&sessions)) {
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cmdq_error(cmdq, "no sessions");
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return (CMD_RETURN_ERROR);
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}
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if (tflag == NULL) {
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if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
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return (CMD_RETURN_ERROR);
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} else if (tflag[strcspn(tflag, ":.")] != '\0') {
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if ((wl = cmd_find_pane(cmdq, tflag, &s, &wp)) == NULL)
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return (CMD_RETURN_ERROR);
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} else {
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if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
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return (CMD_RETURN_ERROR);
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w = window_find_by_id_str(tflag);
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if (w == NULL) {
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wp = window_pane_find_by_id_str(tflag);
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if (wp != NULL)
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w = wp->window;
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}
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if (w != NULL)
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wl = winlink_find_by_window(&s->windows, w);
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}
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if (cmdq->client == NULL)
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return (CMD_RETURN_NORMAL);
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if (wl != NULL) {
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if (wp != NULL)
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window_set_active_pane(wp->window, wp);
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session_set_current(s, wl);
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}
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if (cmdq->client->session != NULL) {
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if (dflag) {
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/*
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* Can't use server_write_session in case attaching to
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* the same session as currently attached to.
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*/
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TAILQ_FOREACH(c, &clients, entry) {
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if (c->session != s || c == cmdq->client)
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continue;
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server_write_client(c, MSG_DETACH,
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c->session->name,
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strlen(c->session->name) + 1);
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}
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}
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if (cflag != NULL) {
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ft = format_create();
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format_defaults(ft, cmd_find_client(cmdq, NULL, 1), s,
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NULL, NULL);
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cp = format_expand(ft, cflag);
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format_free(ft);
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fd = open(cp, O_RDONLY|O_DIRECTORY);
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free(cp);
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if (fd == -1) {
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cmdq_error(cmdq, "bad working directory: %s",
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strerror(errno));
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return (CMD_RETURN_ERROR);
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}
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close(s->cwd);
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s->cwd = fd;
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}
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cmdq->client->session = s;
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notify_attached_session_changed(cmdq->client);
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session_update_activity(s);
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server_redraw_client(cmdq->client);
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s->curw->flags &= ~WINLINK_ALERTFLAGS;
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} else {
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if (server_client_open(cmdq->client, &cause) != 0) {
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cmdq_error(cmdq, "open terminal failed: %s", cause);
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free(cause);
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return (CMD_RETURN_ERROR);
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}
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if (cflag != NULL) {
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ft = format_create();
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format_defaults(ft, cmd_find_client(cmdq, NULL, 1), s,
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NULL, NULL);
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cp = format_expand(ft, cflag);
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format_free(ft);
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fd = open(cp, O_RDONLY|O_DIRECTORY);
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free(cp);
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if (fd == -1) {
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cmdq_error(cmdq, "bad working directory: %s",
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strerror(errno));
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return (CMD_RETURN_ERROR);
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}
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close(s->cwd);
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s->cwd = fd;
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}
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if (rflag)
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cmdq->client->flags |= CLIENT_READONLY;
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if (dflag) {
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server_write_session(s, MSG_DETACH, s->name,
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strlen(s->name) + 1);
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}
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update = options_get_string(&s->options, "update-environment");
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environ_update(update, &cmdq->client->environ, &s->environ);
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cmdq->client->session = s;
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notify_attached_session_changed(cmdq->client);
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session_update_activity(s);
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server_redraw_client(cmdq->client);
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s->curw->flags &= ~WINLINK_ALERTFLAGS;
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server_write_ready(cmdq->client);
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cmdq->client_exit = 0;
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}
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recalculate_sizes();
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server_update_socket();
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return (CMD_RETURN_NORMAL);
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}
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enum cmd_retval
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cmd_attach_session_exec(struct cmd *self, struct cmd_q *cmdq)
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{
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struct args *args = self->args;
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return (cmd_attach_session(cmdq, args_get(args, 't'),
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args_has(args, 'd'), args_has(args, 'r'), args_get(args, 'c')));
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}
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