/* $OpenBSD: cmd-attach-session.c,v 1.29 2014/01/09 14:20:55 nicm Exp $ */ /* * Copyright (c) 2007 Nicholas Marriott * * 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 #include #include #include #include #include #include "tmux.h" /* * Attach existing session to the current terminal. */ enum cmd_retval cmd_attach_session_exec(struct cmd *, struct cmd_q *); const struct cmd_entry cmd_attach_session_entry = { "attach-session", "attach", "c:drt:", 0, 0, "[-dr] [-c working-directory] " CMD_TARGET_SESSION_USAGE, CMD_CANTNEST|CMD_STARTSERVER, NULL, cmd_attach_session_exec }; enum cmd_retval cmd_attach_session(struct cmd_q *cmdq, const char *tflag, int dflag, int rflag, const char *cflag) { struct session *s; struct client *c; struct winlink *wl = NULL; struct window *w = NULL; struct window_pane *wp = NULL; const char *update; char *cause; u_int i; int fd; struct format_tree *ft; char *cp; if (RB_EMPTY(&sessions)) { cmdq_error(cmdq, "no sessions"); return (CMD_RETURN_ERROR); } if (tflag == NULL) { if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL) return (CMD_RETURN_ERROR); } else if (tflag[strcspn(tflag, ":.")] != '\0') { if ((wl = cmd_find_pane(cmdq, tflag, &s, &wp)) == NULL) return (CMD_RETURN_ERROR); } else { if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL) return (CMD_RETURN_ERROR); w = cmd_lookup_windowid(tflag); if (w == NULL && (wp = cmd_lookup_paneid(tflag)) != NULL) w = wp->window; if (w != NULL) wl = winlink_find_by_window(&s->windows, w); } if (cmdq->client == NULL) return (CMD_RETURN_NORMAL); if (wl != NULL) { if (wp != NULL) window_set_active_pane(wp->window, wp); session_set_current(s, wl); } if (cmdq->client->session != NULL) { if (dflag) { /* * Can't use server_write_session in case attaching to * the same session as currently attached to. */ for (i = 0; i < ARRAY_LENGTH(&clients); i++) { c = ARRAY_ITEM(&clients, i); if (c == NULL || c->session != s) continue; if (c == cmdq->client) continue; server_write_client(c, MSG_DETACH, c->session->name, strlen(c->session->name) + 1); } } if (cflag != NULL) { ft = format_create(); if ((c = cmd_find_client(cmdq, NULL, 1)) != NULL) format_client(ft, c); format_session(ft, s); format_winlink(ft, s, s->curw); format_window_pane(ft, s->curw->window->active); cp = format_expand(ft, cflag); format_free(ft); fd = open(cp, O_RDONLY|O_DIRECTORY); free(cp); if (fd == -1) { cmdq_error(cmdq, "bad working directory: %s", strerror(errno)); return (CMD_RETURN_ERROR); } close(s->cwd); s->cwd = fd; } cmdq->client->session = s; notify_attached_session_changed(cmdq->client); session_update_activity(s); server_redraw_client(cmdq->client); s->curw->flags &= ~WINLINK_ALERTFLAGS; } else { if (server_client_open(cmdq->client, s, &cause) != 0) { cmdq_error(cmdq, "open terminal failed: %s", cause); free(cause); return (CMD_RETURN_ERROR); } if (cflag != NULL) { ft = format_create(); if ((c = cmd_find_client(cmdq, NULL, 1)) != NULL) format_client(ft, c); format_session(ft, s); format_winlink(ft, s, s->curw); format_window_pane(ft, s->curw->window->active); cp = format_expand(ft, cflag); format_free(ft); fd = open(cp, O_RDONLY|O_DIRECTORY); free(cp); if (fd == -1) { cmdq_error(cmdq, "bad working directory: %s", strerror(errno)); return (CMD_RETURN_ERROR); } close(s->cwd); s->cwd = fd; } if (rflag) cmdq->client->flags |= CLIENT_READONLY; if (dflag) { server_write_session(s, MSG_DETACH, s->name, strlen(s->name) + 1); } update = options_get_string(&s->options, "update-environment"); environ_update(update, &cmdq->client->environ, &s->environ); cmdq->client->session = s; notify_attached_session_changed(cmdq->client); session_update_activity(s); server_redraw_client(cmdq->client); s->curw->flags &= ~WINLINK_ALERTFLAGS; server_write_ready(cmdq->client); cmdq->client_exit = 0; } recalculate_sizes(); server_update_socket(); return (CMD_RETURN_NORMAL); } enum cmd_retval cmd_attach_session_exec(struct cmd *self, struct cmd_q *cmdq) { struct args *args = self->args; return (cmd_attach_session(cmdq, args_get(args, 't'), args_has(args, 'd'), args_has(args, 'r'), args_get(args, 'c'))); }