mirror of
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d6306b634e
from attaching, forced to attach read-only, or allowed to attach read-write. A new command, server-access, configures the list. tmux gets the user using getpeereid(3) of the client socket. Users must still configure file system permissions manually.
173 lines
4.5 KiB
C
173 lines
4.5 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
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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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static enum cmd_retval cmd_attach_session_exec(struct cmd *,
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struct cmdq_item *);
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const struct cmd_entry cmd_attach_session_entry = {
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.name = "attach-session",
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.alias = "attach",
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.args = { "c:dEf:rt:x", 0, 0, NULL },
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.usage = "[-dErx] [-c working-directory] [-f flags] "
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CMD_TARGET_SESSION_USAGE,
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/* -t is special */
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.flags = CMD_STARTSERVER|CMD_READONLY,
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.exec = cmd_attach_session_exec
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};
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enum cmd_retval
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cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
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int xflag, int rflag, const char *cflag, int Eflag, const char *fflag)
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{
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struct cmd_find_state *current = cmdq_get_current(item);
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struct cmd_find_state target;
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enum cmd_find_type type;
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int flags;
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struct client *c = cmdq_get_client(item), *c_loop;
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struct session *s;
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struct winlink *wl;
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struct window_pane *wp;
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char *cwd, *cause;
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enum msgtype msgtype;
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if (RB_EMPTY(&sessions)) {
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cmdq_error(item, "no sessions");
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return (CMD_RETURN_ERROR);
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}
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if (c == NULL)
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return (CMD_RETURN_NORMAL);
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if (server_client_check_nested(c)) {
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cmdq_error(item, "sessions should be nested with care, "
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"unset $TMUX to force");
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return (CMD_RETURN_ERROR);
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}
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if (tflag != NULL && tflag[strcspn(tflag, ":.")] != '\0') {
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type = CMD_FIND_PANE;
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flags = 0;
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} else {
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type = CMD_FIND_SESSION;
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flags = CMD_FIND_PREFER_UNATTACHED;
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}
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if (cmd_find_target(&target, item, tflag, type, flags) != 0)
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return (CMD_RETURN_ERROR);
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s = target.s;
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wl = target.wl;
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wp = target.wp;
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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, 1);
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session_set_current(s, wl);
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if (wp != NULL)
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cmd_find_from_winlink_pane(current, wl, wp, 0);
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else
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cmd_find_from_winlink(current, wl, 0);
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}
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if (cflag != NULL) {
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cwd = format_single(item, cflag, c, s, wl, wp);
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free((void *)s->cwd);
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s->cwd = cwd;
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}
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if (fflag)
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server_client_set_flags(c, fflag);
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if (rflag)
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c->flags |= (CLIENT_READONLY|CLIENT_IGNORESIZE);
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c->last_session = c->session;
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if (c->session != NULL) {
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if (dflag || xflag) {
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if (xflag)
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msgtype = MSG_DETACHKILL;
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else
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msgtype = MSG_DETACH;
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TAILQ_FOREACH(c_loop, &clients, entry) {
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if (c_loop->session != s || c == c_loop)
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continue;
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server_client_detach(c_loop, msgtype);
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}
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}
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if (!Eflag)
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environ_update(s->options, c->environ, s->environ);
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server_client_set_session(c, s);
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if (~cmdq_get_flags(item) & CMDQ_STATE_REPEAT)
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server_client_set_key_table(c, NULL);
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} else {
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if (server_client_open(c, &cause) != 0) {
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cmdq_error(item, "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 (dflag || xflag) {
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if (xflag)
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msgtype = MSG_DETACHKILL;
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else
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msgtype = MSG_DETACH;
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TAILQ_FOREACH(c_loop, &clients, entry) {
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if (c_loop->session != s || c == c_loop)
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continue;
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server_client_detach(c_loop, msgtype);
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}
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}
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if (!Eflag)
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environ_update(s->options, c->environ, s->environ);
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server_client_set_session(c, s);
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server_client_set_key_table(c, NULL);
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if (~c->flags & CLIENT_CONTROL)
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proc_send(c->peer, MSG_READY, -1, NULL, 0);
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notify_client("client-attached", c);
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c->flags |= CLIENT_ATTACHED;
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}
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return (CMD_RETURN_NORMAL);
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}
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static enum cmd_retval
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cmd_attach_session_exec(struct cmd *self, struct cmdq_item *item)
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{
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struct args *args = cmd_get_args(self);
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return (cmd_attach_session(item, args_get(args, 't'),
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args_has(args, 'd'), args_has(args, 'x'), args_has(args, 'r'),
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args_get(args, 'c'), args_has(args, 'E'), args_get(args, 'f')));
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}
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