Annotation of src/usr.bin/tmux/cmd-new-session.c, Revision 1.57
1.57 ! nicm 1: /* $OpenBSD: cmd-new-session.c,v 1.56 2013/11/22 20:58:36 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:
1.54 nicm 21: #include <errno.h>
22: #include <fcntl.h>
1.30 nicm 23: #include <pwd.h>
1.35 nicm 24: #include <stdlib.h>
1.11 nicm 25: #include <string.h>
26: #include <termios.h>
1.30 nicm 27: #include <unistd.h>
1.11 nicm 28:
1.1 nicm 29: #include "tmux.h"
30:
31: /*
32: * Create a new session and attach to the current terminal unless -d is given.
33: */
34:
1.48 nicm 35: enum cmd_retval cmd_new_session_exec(struct cmd *, struct cmd_q *);
1.1 nicm 36:
37: const struct cmd_entry cmd_new_session_entry = {
38: "new-session", "new",
1.52 nicm 39: "Ac:dDF:n:Ps:t:x:y:", 0, 1,
40: "[-AdDP] [-c start-directory] [-F format] [-n window-name] "
41: "[-s session-name] " CMD_TARGET_SESSION_USAGE " [-x width] [-y height] "
42: "[command]",
1.53 nicm 43: CMD_STARTSERVER|CMD_CANTNEST,
1.34 nicm 44: NULL,
45: cmd_new_session_exec
1.1 nicm 46: };
47:
1.45 nicm 48: enum cmd_retval
1.48 nicm 49: cmd_new_session_exec(struct cmd *self, struct cmd_q *cmdq)
1.1 nicm 50: {
1.50 nicm 51: struct args *args = self->args;
1.54 nicm 52: struct client *c = cmdq->client, *c0;
1.50 nicm 53: struct session *s, *groupwith;
54: struct window *w;
55: struct environ env;
56: struct termios tio, *tiop;
1.54 nicm 57: const char *newname, *target, *update, *errstr, *template;
1.50 nicm 58: char *cmd, *cause, *cp;
1.54 nicm 59: int detached, already_attached, idx, cwd, fd = -1;
1.50 nicm 60: u_int sx, sy;
61: struct format_tree *ft;
1.51 nicm 62:
63: if (args_has(args, 't') && (args->argc != 0 || args_has(args, 'n'))) {
64: cmdq_error(cmdq, "command or window name given with target");
65: return (CMD_RETURN_ERROR);
66: }
1.34 nicm 67:
68: newname = args_get(args, 's');
1.38 nicm 69: if (newname != NULL) {
70: if (!session_check_name(newname)) {
1.48 nicm 71: cmdq_error(cmdq, "bad session name: %s", newname);
1.45 nicm 72: return (CMD_RETURN_ERROR);
1.38 nicm 73: }
74: if (session_find(newname) != NULL) {
1.49 nicm 75: if (args_has(args, 'A')) {
76: return (cmd_attach_session(cmdq, newname,
1.54 nicm 77: args_has(args, 'D'), 0, NULL));
1.49 nicm 78: }
1.48 nicm 79: cmdq_error(cmdq, "duplicate session: %s", newname);
1.45 nicm 80: return (CMD_RETURN_ERROR);
1.38 nicm 81: }
1.4 nicm 82: }
1.1 nicm 83:
1.34 nicm 84: target = args_get(args, 't');
85: if (target != NULL) {
1.48 nicm 86: groupwith = cmd_find_session(cmdq, target, 0);
1.34 nicm 87: if (groupwith == NULL)
1.45 nicm 88: return (CMD_RETURN_ERROR);
1.34 nicm 89: } else
90: groupwith = NULL;
1.21 nicm 91:
1.6 nicm 92: /* Set -d if no client. */
1.34 nicm 93: detached = args_has(args, 'd');
1.48 nicm 94: if (c == NULL)
1.6 nicm 95: detached = 1;
96:
1.48 nicm 97: /* Is this client already attached? */
98: already_attached = 0;
99: if (c != NULL && c->session != NULL)
100: already_attached = 1;
101:
1.54 nicm 102: /* Get the new session working directory. */
103: if (args_has(args, 'c')) {
104: ft = format_create();
105: if ((c0 = cmd_find_client(cmdq, NULL, 1)) != NULL)
106: format_client(ft, c0);
107: cp = format_expand(ft, args_get(args, 'c'));
108: format_free(ft);
109:
1.56 nicm 110: if (cp != NULL && *cp != '\0') {
111: fd = open(cp, O_RDONLY|O_DIRECTORY);
112: free(cp);
113: if (fd == -1) {
114: cmdq_error(cmdq, "bad working directory: %s",
115: strerror(errno));
116: return (CMD_RETURN_ERROR);
117: }
118: } else if (cp != NULL)
119: free(cp);
1.54 nicm 120: cwd = fd;
1.55 nicm 121: } else if (c != NULL && c->session == NULL)
1.54 nicm 122: cwd = c->cwd;
123: else if ((c0 = cmd_current_client(cmdq)) != NULL)
124: cwd = c0->session->cwd;
125: else {
126: fd = open(".", O_RDONLY);
127: cwd = fd;
128: }
129:
1.15 nicm 130: /*
1.19 nicm 131: * Save the termios settings, part of which is used for new windows in
132: * this session.
1.15 nicm 133: *
134: * This is read again with tcgetattr() rather than using tty.tio as if
135: * detached, tty_open won't be called. Because of this, it must be done
136: * before opening the terminal as that calls tcsetattr() to prepare for
137: * tmux taking over.
138: */
1.48 nicm 139: if (!detached && !already_attached && c->tty.fd != -1) {
140: if (tcgetattr(c->tty.fd, &tio) != 0)
1.15 nicm 141: fatal("tcgetattr failed");
1.19 nicm 142: tiop = &tio;
1.15 nicm 143: } else
1.19 nicm 144: tiop = NULL;
1.15 nicm 145:
1.4 nicm 146: /* Open the terminal if necessary. */
1.48 nicm 147: if (!detached && !already_attached) {
1.57 ! nicm 148: if (server_client_open(c, &cause) != 0) {
1.48 nicm 149: cmdq_error(cmdq, "open terminal failed: %s", cause);
1.44 nicm 150: free(cause);
1.54 nicm 151: goto error;
1.1 nicm 152: }
153: }
154:
1.16 nicm 155: /* Find new session size. */
1.48 nicm 156: if (c != NULL) {
157: sx = c->tty.sx;
158: sy = c->tty.sy;
1.39 nicm 159: } else {
1.4 nicm 160: sx = 80;
1.18 nicm 161: sy = 24;
1.39 nicm 162: }
1.48 nicm 163: if (detached && args_has(args, 'x')) {
164: sx = strtonum(args_get(args, 'x'), 1, USHRT_MAX, &errstr);
165: if (errstr != NULL) {
166: cmdq_error(cmdq, "width %s", errstr);
1.54 nicm 167: goto error;
1.35 nicm 168: }
1.48 nicm 169: }
170: if (detached && args_has(args, 'y')) {
171: sy = strtonum(args_get(args, 'y'), 1, USHRT_MAX, &errstr);
172: if (errstr != NULL) {
173: cmdq_error(cmdq, "height %s", errstr);
1.54 nicm 174: goto error;
1.35 nicm 175: }
1.1 nicm 176: }
1.7 nicm 177: if (sy > 0 && options_get_number(&global_s_options, "status"))
1.4 nicm 178: sy--;
179: if (sx == 0)
180: sx = 1;
181: if (sy == 0)
182: sy = 1;
1.16 nicm 183:
184: /* Figure out the command for the new window. */
1.34 nicm 185: if (target != NULL)
1.21 nicm 186: cmd = NULL;
1.34 nicm 187: else if (args->argc != 0)
188: cmd = args->argv[0];
1.1 nicm 189: else
1.7 nicm 190: cmd = options_get_string(&global_s_options, "default-command");
1.1 nicm 191:
1.10 nicm 192: /* Construct the environment. */
193: environ_init(&env);
194: update = options_get_string(&global_s_options, "update-environment");
1.48 nicm 195: if (c != NULL)
196: environ_update(update, &c->environ, &env);
1.11 nicm 197:
1.4 nicm 198: /* Create the new session. */
1.13 nicm 199: idx = -1 - options_get_number(&global_s_options, "base-index");
1.34 nicm 200: s = session_create(newname, cmd, cwd, &env, tiop, idx, sx, sy, &cause);
1.1 nicm 201: if (s == NULL) {
1.48 nicm 202: cmdq_error(cmdq, "create session failed: %s", cause);
1.44 nicm 203: free(cause);
1.54 nicm 204: goto error;
1.1 nicm 205: }
1.10 nicm 206: environ_free(&env);
1.4 nicm 207:
1.16 nicm 208: /* Set the initial window name if one given. */
1.34 nicm 209: if (cmd != NULL && args_has(args, 'n')) {
1.16 nicm 210: w = s->curw->window;
1.40 nicm 211: window_set_name(w, args_get(args, 'n'));
1.16 nicm 212: options_set_number(&w->options, "automatic-rename", 0);
1.21 nicm 213: }
214:
215: /*
216: * If a target session is given, this is to be part of a session group,
217: * so add it to the group and synchronize.
218: */
219: if (groupwith != NULL) {
220: session_group_add(groupwith, s);
221: session_group_synchronize_to(s);
222: session_select(s, RB_ROOT(&s->windows)->idx);
1.1 nicm 223: }
224:
1.16 nicm 225: /*
226: * Set the client to the new session. If a command client exists, it is
227: * taking this session and needs to get MSG_READY and stay around.
1.4 nicm 228: */
1.25 nicm 229: if (!detached) {
1.48 nicm 230: if (!already_attached)
231: server_write_ready(c);
232: else if (c->session != NULL)
233: c->last_session = c->session;
234: c->session = s;
235: notify_attached_session_changed(c);
236: session_update_activity(s);
237: server_redraw_client(c);
1.1 nicm 238: }
239: recalculate_sizes();
1.22 nicm 240: server_update_socket();
1.26 nicm 241:
242: /*
243: * If there are still configuration file errors to display, put the new
244: * session's current window into more mode and display them now.
245: */
1.46 nicm 246: if (cfg_finished)
1.48 nicm 247: cfg_show_causes(s);
1.50 nicm 248:
249: /* Print if requested. */
250: if (args_has(args, 'P')) {
251: if ((template = args_get(args, 'F')) == NULL)
252: template = NEW_SESSION_TEMPLATE;
253:
254: ft = format_create();
1.54 nicm 255: if ((c0 = cmd_find_client(cmdq, NULL, 1)) != NULL)
256: format_client(ft, c0);
1.50 nicm 257: format_session(ft, s);
258:
259: cp = format_expand(ft, template);
260: cmdq_print(cmdq, "%s", cp);
261: free(cp);
262:
263: format_free(ft);
264: }
1.1 nicm 265:
1.48 nicm 266: if (!detached)
267: cmdq->client_exit = 0;
1.54 nicm 268:
269: if (fd != -1)
270: close(fd);
1.48 nicm 271: return (CMD_RETURN_NORMAL);
1.54 nicm 272:
273: error:
274: if (fd != -1)
275: close(fd);
276: return (CMD_RETURN_ERROR);
1.1 nicm 277: }
![[BACK]](/icons/back.gif){kind=icon}
Return to cmd-new-session.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / tmux