Annotation of src/usr.bin/tmux/cmd-attach-session.c, Revision 1.47
1.47 ! nicm 1: /* $OpenBSD: cmd-attach-session.c,v 1.46 2015/10/31 08:13:58 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20:
1.27 nicm 21: #include <errno.h>
22: #include <fcntl.h>
1.21 nicm 23: #include <stdlib.h>
1.27 nicm 24: #include <string.h>
25: #include <unistd.h>
1.21 nicm 26:
1.1 nicm 27: #include "tmux.h"
28:
29: /*
30: * Attach existing session to the current terminal.
31: */
32:
1.23 nicm 33: enum cmd_retval cmd_attach_session_exec(struct cmd *, struct cmd_q *);
1.1 nicm 34:
35: const struct cmd_entry cmd_attach_session_entry = {
36: "attach-session", "attach",
1.36 nicm 37: "c:dErt:", 0, 0,
38: "[-dEr] [-c working-directory] " CMD_TARGET_SESSION_USAGE,
1.35 nicm 39: CMD_STARTSERVER,
1.15 nicm 40: cmd_attach_session_exec
1.1 nicm 41: };
42:
1.22 nicm 43: enum cmd_retval
1.27 nicm 44: cmd_attach_session(struct cmd_q *cmdq, const char *tflag, int dflag, int rflag,
1.36 nicm 45: const char *cflag, int Eflag)
1.1 nicm 46: {
1.27 nicm 47: struct session *s;
1.36 nicm 48: struct client *c = cmdq->client, *c_loop;
1.29 nicm 49: struct winlink *wl = NULL;
50: struct window *w = NULL;
51: struct window_pane *wp = NULL;
1.27 nicm 52: const char *update;
53: char *cause;
54: struct format_tree *ft;
1.46 nicm 55: char *cwd;
1.1 nicm 56:
1.13 nicm 57: if (RB_EMPTY(&sessions)) {
1.23 nicm 58: cmdq_error(cmdq, "no sessions");
1.22 nicm 59: return (CMD_RETURN_ERROR);
1.1 nicm 60: }
1.15 nicm 61:
1.29 nicm 62: if (tflag == NULL) {
63: if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
64: return (CMD_RETURN_ERROR);
65: } else if (tflag[strcspn(tflag, ":.")] != '\0') {
66: if ((wl = cmd_find_pane(cmdq, tflag, &s, &wp)) == NULL)
67: return (CMD_RETURN_ERROR);
68: } else {
69: if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
70: return (CMD_RETURN_ERROR);
1.34 nicm 71: w = window_find_by_id_str(tflag);
72: if (w == NULL) {
73: wp = window_pane_find_by_id_str(tflag);
74: if (wp != NULL)
75: w = wp->window;
76: }
1.29 nicm 77: if (w != NULL)
78: wl = winlink_find_by_window(&s->windows, w);
79: }
1.5 nicm 80:
1.36 nicm 81: if (c == NULL)
1.22 nicm 82: return (CMD_RETURN_NORMAL);
1.36 nicm 83: if (server_client_check_nested(c)) {
1.35 nicm 84: cmdq_error(cmdq, "sessions should be nested with care, "
85: "unset $TMUX to force");
86: return (CMD_RETURN_ERROR);
87: }
1.29 nicm 88:
89: if (wl != NULL) {
90: if (wp != NULL)
91: window_set_active_pane(wp->window, wp);
92: session_set_current(s, wl);
93: }
1.1 nicm 94:
1.42 nicm 95: if (cflag != NULL) {
96: ft = format_create();
97: format_defaults(ft, cmd_find_client(cmdq, NULL, 1), s,
98: NULL, NULL);
1.46 nicm 99: cwd = format_expand(ft, cflag);
1.42 nicm 100: format_free(ft);
101:
1.46 nicm 102: free((void *)s->cwd);
103: s->cwd = cwd;
1.42 nicm 104: }
105:
1.36 nicm 106: if (c->session != NULL) {
1.24 nicm 107: if (dflag) {
1.36 nicm 108: TAILQ_FOREACH(c_loop, &clients, entry) {
1.37 nicm 109: if (c_loop->session != s || c == c_loop)
1.4 nicm 110: continue;
1.43 nicm 111: proc_send_s(c->peer, MSG_DETACH, s->name);
1.4 nicm 112: }
113: }
1.11 nicm 114:
1.38 nicm 115: if (!Eflag) {
1.44 nicm 116: update = options_get_string(s->options,
1.38 nicm 117: "update-environment");
1.45 nicm 118: environ_update(update, c->environ, s->environ);
1.27 nicm 119: }
120:
1.36 nicm 121: c->session = s;
1.39 nicm 122: status_timer_start(c);
1.36 nicm 123: notify_attached_session_changed(c);
1.40 nicm 124: session_update_activity(s, NULL);
1.41 nicm 125: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 126: server_redraw_client(c);
1.17 nicm 127: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.4 nicm 128: } else {
1.36 nicm 129: if (server_client_open(c, &cause) != 0) {
1.23 nicm 130: cmdq_error(cmdq, "open terminal failed: %s", cause);
1.21 nicm 131: free(cause);
1.22 nicm 132: return (CMD_RETURN_ERROR);
1.27 nicm 133: }
134:
1.24 nicm 135: if (rflag)
1.36 nicm 136: c->flags |= CLIENT_READONLY;
1.4 nicm 137:
1.28 nicm 138: if (dflag) {
1.43 nicm 139: TAILQ_FOREACH(c_loop, &clients, entry) {
140: if (c_loop->session != s || c == c_loop)
141: continue;
142: proc_send_s(c->peer, MSG_DETACH, s->name);
143: }
1.28 nicm 144: }
1.4 nicm 145:
1.36 nicm 146: if (!Eflag) {
1.44 nicm 147: update = options_get_string(s->options,
1.36 nicm 148: "update-environment");
1.45 nicm 149: environ_update(update, c->environ, s->environ);
1.36 nicm 150: }
1.8 nicm 151:
1.36 nicm 152: c->session = s;
1.39 nicm 153: status_timer_start(c);
1.36 nicm 154: notify_attached_session_changed(c);
1.40 nicm 155: session_update_activity(s, NULL);
1.41 nicm 156: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 157: server_redraw_client(c);
1.17 nicm 158: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.23 nicm 159:
1.43 nicm 160: if (~c->flags & CLIENT_CONTROL)
161: proc_send(c->peer, MSG_READY, -1, NULL, 0);
1.23 nicm 162: cmdq->client_exit = 0;
1.1 nicm 163: }
164: recalculate_sizes();
1.9 nicm 165: server_update_socket();
1.1 nicm 166:
1.23 nicm 167: return (CMD_RETURN_NORMAL);
1.24 nicm 168: }
169:
170: enum cmd_retval
171: cmd_attach_session_exec(struct cmd *self, struct cmd_q *cmdq)
172: {
173: struct args *args = self->args;
174:
175: return (cmd_attach_session(cmdq, args_get(args, 't'),
1.36 nicm 176: args_has(args, 'd'), args_has(args, 'r'), args_get(args, 'c'),
177: args_has(args, 'E')));
1.1 nicm 178: }
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