Annotation of src/usr.bin/tmux/cmd-attach-session.c, Revision 1.34
1.34 ! nicm 1: /* $OpenBSD: cmd-attach-session.c,v 1.33 2015/04/24 23:17:11 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",
1.27 nicm 37: "c:drt:", 0, 0,
38: "[-dr] [-c working-directory] " CMD_TARGET_SESSION_USAGE,
1.26 nicm 39: CMD_CANTNEST|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,
45: const char *cflag)
1.1 nicm 46: {
1.27 nicm 47: struct session *s;
48: struct client *c;
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: int fd;
55: struct format_tree *ft;
56: char *cp;
1.1 nicm 57:
1.13 nicm 58: if (RB_EMPTY(&sessions)) {
1.23 nicm 59: cmdq_error(cmdq, "no sessions");
1.22 nicm 60: return (CMD_RETURN_ERROR);
1.1 nicm 61: }
1.15 nicm 62:
1.29 nicm 63: if (tflag == NULL) {
64: if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
65: return (CMD_RETURN_ERROR);
66: } else if (tflag[strcspn(tflag, ":.")] != '\0') {
67: if ((wl = cmd_find_pane(cmdq, tflag, &s, &wp)) == NULL)
68: return (CMD_RETURN_ERROR);
69: } else {
70: if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
71: return (CMD_RETURN_ERROR);
1.34 ! nicm 72: w = window_find_by_id_str(tflag);
! 73: if (w == NULL) {
! 74: wp = window_pane_find_by_id_str(tflag);
! 75: if (wp != NULL)
! 76: w = wp->window;
! 77: }
1.29 nicm 78: if (w != NULL)
79: wl = winlink_find_by_window(&s->windows, w);
80: }
1.5 nicm 81:
1.23 nicm 82: if (cmdq->client == NULL)
1.22 nicm 83: return (CMD_RETURN_NORMAL);
1.29 nicm 84:
85: if (wl != NULL) {
86: if (wp != NULL)
87: window_set_active_pane(wp->window, wp);
88: session_set_current(s, wl);
89: }
1.1 nicm 90:
1.23 nicm 91: if (cmdq->client->session != NULL) {
1.24 nicm 92: if (dflag) {
1.11 nicm 93: /*
1.4 nicm 94: * Can't use server_write_session in case attaching to
95: * the same session as currently attached to.
96: */
1.33 nicm 97: TAILQ_FOREACH(c, &clients, entry) {
98: if (c->session != s || c == cmdq->client)
1.4 nicm 99: continue;
1.28 nicm 100: server_write_client(c, MSG_DETACH,
101: c->session->name,
102: strlen(c->session->name) + 1);
1.4 nicm 103: }
104: }
1.11 nicm 105:
1.27 nicm 106: if (cflag != NULL) {
107: ft = format_create();
1.32 nicm 108: format_defaults(ft, cmd_find_client(cmdq, NULL, 1), s,
109: NULL, NULL);
1.27 nicm 110: cp = format_expand(ft, cflag);
111: format_free(ft);
112:
113: fd = open(cp, O_RDONLY|O_DIRECTORY);
114: free(cp);
115: if (fd == -1) {
116: cmdq_error(cmdq, "bad working directory: %s",
117: strerror(errno));
118: return (CMD_RETURN_ERROR);
119: }
120: close(s->cwd);
121: s->cwd = fd;
122: }
123:
1.23 nicm 124: cmdq->client->session = s;
125: notify_attached_session_changed(cmdq->client);
1.14 nicm 126: session_update_activity(s);
1.23 nicm 127: server_redraw_client(cmdq->client);
1.17 nicm 128: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.4 nicm 129: } else {
1.30 nicm 130: if (server_client_open(cmdq->client, &cause) != 0) {
1.23 nicm 131: cmdq_error(cmdq, "open terminal failed: %s", cause);
1.21 nicm 132: free(cause);
1.22 nicm 133: return (CMD_RETURN_ERROR);
1.4 nicm 134: }
1.12 nicm 135:
1.27 nicm 136: if (cflag != NULL) {
137: ft = format_create();
1.32 nicm 138: format_defaults(ft, cmd_find_client(cmdq, NULL, 1), s,
139: NULL, NULL);
1.27 nicm 140: cp = format_expand(ft, cflag);
141: format_free(ft);
142:
143: fd = open(cp, O_RDONLY|O_DIRECTORY);
144: free(cp);
145: if (fd == -1) {
146: cmdq_error(cmdq, "bad working directory: %s",
147: strerror(errno));
148: return (CMD_RETURN_ERROR);
149: }
150: close(s->cwd);
151: s->cwd = fd;
152: }
153:
1.24 nicm 154: if (rflag)
1.23 nicm 155: cmdq->client->flags |= CLIENT_READONLY;
1.4 nicm 156:
1.28 nicm 157: if (dflag) {
158: server_write_session(s, MSG_DETACH, s->name,
159: strlen(s->name) + 1);
160: }
1.4 nicm 161:
1.8 nicm 162: update = options_get_string(&s->options, "update-environment");
1.23 nicm 163: environ_update(update, &cmdq->client->environ, &s->environ);
1.8 nicm 164:
1.23 nicm 165: cmdq->client->session = s;
166: notify_attached_session_changed(cmdq->client);
167: session_update_activity(s);
168: server_redraw_client(cmdq->client);
1.17 nicm 169: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.23 nicm 170:
171: server_write_ready(cmdq->client);
172: cmdq->client_exit = 0;
1.1 nicm 173: }
174: recalculate_sizes();
1.9 nicm 175: server_update_socket();
1.1 nicm 176:
1.23 nicm 177: return (CMD_RETURN_NORMAL);
1.24 nicm 178: }
179:
180: enum cmd_retval
181: cmd_attach_session_exec(struct cmd *self, struct cmd_q *cmdq)
182: {
183: struct args *args = self->args;
184:
185: return (cmd_attach_session(cmdq, args_get(args, 't'),
1.27 nicm 186: args_has(args, 'd'), args_has(args, 'r'), args_get(args, 'c')));
1.1 nicm 187: }
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