2009-06-01 22:58:49 +00:00
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/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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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 <sys/stat.h>
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2015-10-23 16:07:29 +00:00
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#include <err.h>
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2009-06-01 22:58:49 +00:00
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#include <errno.h>
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2009-11-04 20:50:11 +00:00
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#include <event.h>
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2010-10-16 08:42:35 +00:00
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#include <fcntl.h>
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2014-10-20 23:27:14 +00:00
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#include <getopt.h>
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2013-04-11 21:52:18 +00:00
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#include <locale.h>
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2009-06-01 22:58:49 +00:00
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#include <paths.h>
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#include <pwd.h>
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#include <stdlib.h>
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#include <string.h>
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2015-10-27 13:23:24 +00:00
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#include <time.h>
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2009-06-01 22:58:49 +00:00
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#include <unistd.h>
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#include "tmux.h"
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#ifdef DEBUG
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2009-11-04 12:41:43 +00:00
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extern char *malloc_options;
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2009-06-01 22:58:49 +00:00
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#endif
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2015-10-27 15:58:42 +00:00
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struct options *global_options; /* server options */
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struct options *global_s_options; /* session options */
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struct options *global_w_options; /* window options */
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2015-10-28 09:51:55 +00:00
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struct environ *global_environ;
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2009-06-01 22:58:49 +00:00
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2010-10-18 20:00:02 +00:00
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char *shell_cmd;
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2009-06-01 22:58:49 +00:00
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int debug_level;
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time_t start_time;
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2014-10-20 23:27:14 +00:00
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char socket_path[PATH_MAX];
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2010-02-06 18:29:15 +00:00
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2009-06-01 22:58:49 +00:00
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__dead void usage(void);
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2010-10-18 20:00:02 +00:00
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char *makesocketpath(const char *);
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2009-11-04 20:50:11 +00:00
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2009-06-01 22:58:49 +00:00
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__dead void
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usage(void)
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{
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2009-06-02 16:53:20 +00:00
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fprintf(stderr,
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2015-06-04 20:34:22 +00:00
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"usage: %s [-2Cluv] [-c shell-command] [-f file] [-L socket-name]\n"
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2009-09-02 17:34:57 +00:00
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" [-S socket-path] [command [flags]]\n",
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2009-06-01 22:58:49 +00:00
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__progname);
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exit(1);
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}
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void
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logfile(const char *name)
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{
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char *path;
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if (debug_level > 0) {
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2009-08-12 09:14:25 +00:00
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xasprintf(&path, "tmux-%s-%ld.log", name, (long) getpid());
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2014-03-31 21:42:45 +00:00
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log_open(path);
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2012-07-10 11:53:01 +00:00
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free(path);
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2009-06-01 22:58:49 +00:00
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}
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}
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2009-09-01 13:09:49 +00:00
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const char *
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getshell(void)
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{
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struct passwd *pw;
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const char *shell;
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shell = getenv("SHELL");
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if (checkshell(shell))
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return (shell);
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pw = getpwuid(getuid());
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if (pw != NULL && checkshell(pw->pw_shell))
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return (pw->pw_shell);
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return (_PATH_BSHELL);
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}
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int
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checkshell(const char *shell)
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{
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2011-09-25 18:53:04 +00:00
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if (shell == NULL || *shell == '\0' || *shell != '/')
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return (0);
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if (areshell(shell))
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2009-09-01 13:09:49 +00:00
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return (0);
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if (access(shell, X_OK) != 0)
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return (0);
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return (1);
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}
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int
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areshell(const char *shell)
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{
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const char *progname, *ptr;
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if ((ptr = strrchr(shell, '/')) != NULL)
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ptr++;
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else
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ptr = shell;
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progname = __progname;
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if (*progname == '-')
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progname++;
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if (strcmp(ptr, progname) == 0)
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return (1);
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return (0);
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}
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2009-06-01 22:58:49 +00:00
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char *
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2010-10-18 20:00:02 +00:00
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makesocketpath(const char *label)
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2009-06-01 22:58:49 +00:00
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{
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2014-10-20 23:27:14 +00:00
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char base[PATH_MAX], realbase[PATH_MAX], *path, *s;
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2009-06-01 22:58:49 +00:00
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struct stat sb;
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u_int uid;
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uid = getuid();
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2013-03-27 11:24:18 +00:00
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if ((s = getenv("TMUX_TMPDIR")) != NULL && *s != '\0')
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2015-01-19 09:58:34 +00:00
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xsnprintf(base, sizeof base, "%s/tmux-%u", s, uid);
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2013-03-27 11:24:18 +00:00
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else
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xsnprintf(base, sizeof base, "%s/tmux-%u", _PATH_TMP, uid);
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2009-06-01 22:58:49 +00:00
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if (mkdir(base, S_IRWXU) != 0 && errno != EEXIST)
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return (NULL);
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if (lstat(base, &sb) != 0)
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return (NULL);
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if (!S_ISDIR(sb.st_mode)) {
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errno = ENOTDIR;
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return (NULL);
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}
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2015-01-19 09:58:34 +00:00
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if (sb.st_uid != uid || (sb.st_mode & S_IRWXO) != 0) {
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2009-06-01 22:58:49 +00:00
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errno = EACCES;
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return (NULL);
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}
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2012-11-26 11:35:28 +00:00
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if (realpath(base, realbase) == NULL)
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strlcpy(realbase, base, sizeof realbase);
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xasprintf(&path, "%s/%s", realbase, label);
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2009-06-01 22:58:49 +00:00
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return (path);
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}
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2011-01-08 01:52:36 +00:00
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void
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setblocking(int fd, int state)
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{
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int mode;
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if ((mode = fcntl(fd, F_GETFL)) != -1) {
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if (!state)
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mode |= O_NONBLOCK;
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else
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mode &= ~O_NONBLOCK;
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fcntl(fd, F_SETFL, mode);
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}
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}
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2015-08-30 15:43:40 +00:00
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const char *
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2015-07-20 15:50:04 +00:00
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find_home(void)
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{
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2015-09-01 10:10:59 +00:00
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struct passwd *pw;
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static const char *home;
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if (home != NULL)
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return (home);
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2015-07-20 15:50:04 +00:00
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home = getenv("HOME");
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if (home == NULL || *home == '\0') {
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pw = getpwuid(getuid());
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if (pw != NULL)
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home = pw->pw_dir;
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else
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home = NULL;
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}
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2015-08-30 15:43:40 +00:00
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return (home);
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2015-07-20 15:50:04 +00:00
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}
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2009-06-01 22:58:49 +00:00
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int
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main(int argc, char **argv)
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{
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2015-11-12 11:24:08 +00:00
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char *path, *label, **var, tmp[PATH_MAX];
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const char *s;
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int opt, flags, keys;
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2009-06-01 22:58:49 +00:00
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2009-11-04 12:41:43 +00:00
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#ifdef DEBUG
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malloc_options = (char *) "AFGJPX";
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#endif
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2013-04-11 21:52:18 +00:00
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setlocale(LC_TIME, "");
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2015-09-14 12:12:24 +00:00
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tzset();
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2013-04-11 21:52:18 +00:00
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2015-08-30 22:40:25 +00:00
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if (**argv == '-')
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flags = CLIENT_LOGIN;
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else
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flags = 0;
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2010-10-18 20:00:02 +00:00
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label = path = NULL;
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2013-03-27 11:24:18 +00:00
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while ((opt = getopt(argc, argv, "2c:Cdf:lL:qS:uUv")) != -1) {
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2009-09-02 17:34:57 +00:00
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switch (opt) {
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2009-06-01 22:58:49 +00:00
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case '2':
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2013-10-10 12:12:08 +00:00
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flags |= CLIENT_256COLOURS;
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2009-06-01 22:58:49 +00:00
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break;
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2009-09-23 12:03:30 +00:00
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case 'c':
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2012-07-10 11:53:01 +00:00
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free(shell_cmd);
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2010-10-18 20:00:02 +00:00
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shell_cmd = xstrdup(optarg);
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2009-09-23 12:03:30 +00:00
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break;
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2012-06-18 13:16:42 +00:00
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case 'C':
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2013-10-10 12:12:08 +00:00
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if (flags & CLIENT_CONTROL)
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flags |= CLIENT_CONTROLCONTROL;
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2012-06-18 13:16:42 +00:00
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else
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2013-10-10 12:12:08 +00:00
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flags |= CLIENT_CONTROL;
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2012-06-18 13:16:42 +00:00
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break;
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2009-06-01 22:58:49 +00:00
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case 'f':
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2015-09-01 10:10:59 +00:00
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set_cfg_file(optarg);
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2009-06-01 22:58:49 +00:00
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break;
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2009-09-02 17:34:57 +00:00
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case 'l':
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2015-08-30 22:40:25 +00:00
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flags |= CLIENT_LOGIN;
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2009-09-02 17:34:57 +00:00
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break;
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2009-06-01 22:58:49 +00:00
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case 'L':
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2012-07-10 11:53:01 +00:00
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free(label);
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2009-06-01 22:58:49 +00:00
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label = xstrdup(optarg);
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break;
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2009-09-01 09:00:54 +00:00
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case 'q':
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break;
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2009-06-01 22:58:49 +00:00
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case 'S':
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2012-07-10 11:53:01 +00:00
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free(path);
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2009-06-01 22:58:49 +00:00
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path = xstrdup(optarg);
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break;
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case 'u':
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2013-10-10 12:12:08 +00:00
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flags |= CLIENT_UTF8;
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2009-06-01 22:58:49 +00:00
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break;
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case 'v':
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debug_level++;
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break;
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2009-10-26 21:42:04 +00:00
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default:
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2009-06-01 22:58:49 +00:00
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usage();
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2009-10-26 21:42:04 +00:00
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}
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}
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2009-06-01 22:58:49 +00:00
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argc -= optind;
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argv += optind;
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2010-10-18 20:00:02 +00:00
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if (shell_cmd != NULL && argc != 0)
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2009-09-23 12:03:30 +00:00
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usage();
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2015-10-23 16:07:29 +00:00
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if (pledge("stdio rpath wpath cpath flock fattr unix sendfd recvfd "
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"proc exec tty ps", NULL) != 0)
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err(1, "pledge");
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2015-11-12 11:24:08 +00:00
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/*
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* tmux is a UTF-8 terminal, so if TMUX is set, assume UTF-8.
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* Otherwise, if the user has set LC_ALL, LC_CTYPE or LANG to contain
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* UTF-8, it is a safe assumption that either they are using a UTF-8
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* terminal, or if not they know that output from UTF-8-capable
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* programs may be wrong.
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*/
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if (getenv("TMUX") != NULL)
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flags |= CLIENT_UTF8;
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else {
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s = getenv("LC_ALL");
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if (s == NULL || *s == '\0')
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s = getenv("LC_CTYPE");
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if (s == NULL || *s == '\0')
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s = getenv("LANG");
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if (s == NULL || *s == '\0')
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s = "";
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if (strcasestr(s, "UTF-8") != NULL ||
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strcasestr(s, "UTF8") != NULL)
|
2013-10-10 12:12:08 +00:00
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flags |= CLIENT_UTF8;
|
2009-07-17 13:38:03 +00:00
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}
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|
2015-10-28 09:51:55 +00:00
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global_environ = environ_create();
|
2009-12-03 22:50:09 +00:00
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for (var = environ; *var != NULL; var++)
|
2015-10-28 09:51:55 +00:00
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environ_put(global_environ, *var);
|
2013-10-10 12:26:34 +00:00
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if (getcwd(tmp, sizeof tmp) != NULL)
|
2015-10-28 09:51:55 +00:00
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environ_set(global_environ, "PWD", tmp);
|
2009-09-04 15:15:24 +00:00
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|
2015-10-27 15:58:42 +00:00
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global_options = options_create(NULL);
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options_table_populate_tree(server_options_table, global_options);
|
2009-12-10 09:16:52 +00:00
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|
2015-10-27 15:58:42 +00:00
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global_s_options = options_create(NULL);
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options_table_populate_tree(session_options_table, global_s_options);
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options_set_string(global_s_options, "default-shell", "%s", getshell());
|
2009-07-07 19:49:19 +00:00
|
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|
2015-10-27 15:58:42 +00:00
|
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|
global_w_options = options_create(NULL);
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|
options_table_populate_tree(window_options_table, global_w_options);
|
2011-01-01 16:51:21 +00:00
|
|
|
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|
|
/* Override keys to vi if VISUAL or EDITOR are set. */
|
2010-11-29 19:45:58 +00:00
|
|
|
if ((s = getenv("VISUAL")) != NULL || (s = getenv("EDITOR")) != NULL) {
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|
|
if (strrchr(s, '/') != NULL)
|
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|
|
s = strrchr(s, '/') + 1;
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|
|
if (strstr(s, "vi") != NULL)
|
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|
|
keys = MODEKEY_VI;
|
2011-01-01 16:51:21 +00:00
|
|
|
else
|
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|
|
keys = MODEKEY_EMACS;
|
2015-10-27 15:58:42 +00:00
|
|
|
options_set_number(global_s_options, "status-keys", keys);
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|
|
options_set_number(global_w_options, "mode-keys", keys);
|
2010-11-29 19:45:58 +00:00
|
|
|
}
|
|
|
|
|
2010-02-04 18:27:06 +00:00
|
|
|
/*
|
2010-10-18 20:00:02 +00:00
|
|
|
* Figure out the socket path. If specified on the command-line with -S
|
|
|
|
* or -L, use it, otherwise try $TMUX or assume -L default.
|
2010-02-04 18:27:06 +00:00
|
|
|
*/
|
|
|
|
if (path == NULL) {
|
2010-10-18 20:00:02 +00:00
|
|
|
/* If no -L, use the environment. */
|
2010-02-04 18:27:06 +00:00
|
|
|
if (label == NULL) {
|
2015-08-30 22:56:36 +00:00
|
|
|
s = getenv("TMUX");
|
|
|
|
if (s != NULL) {
|
|
|
|
path = xstrdup(s);
|
|
|
|
path[strcspn (path, ",")] = '\0';
|
|
|
|
if (*path == '\0') {
|
|
|
|
free(path);
|
|
|
|
label = xstrdup("default");
|
|
|
|
}
|
2015-09-03 14:30:23 +00:00
|
|
|
} else
|
2010-02-04 18:27:06 +00:00
|
|
|
label = xstrdup("default");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* -L or default set. */
|
|
|
|
if (label != NULL) {
|
2010-10-18 20:00:02 +00:00
|
|
|
if ((path = makesocketpath(label)) == NULL) {
|
2013-10-10 12:03:22 +00:00
|
|
|
fprintf(stderr, "can't create socket: %s\n",
|
2015-08-30 22:56:36 +00:00
|
|
|
strerror(errno));
|
2010-02-04 18:27:06 +00:00
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
}
|
2009-06-01 22:58:49 +00:00
|
|
|
}
|
2012-07-10 11:53:01 +00:00
|
|
|
free(label);
|
2014-01-09 14:05:55 +00:00
|
|
|
|
2015-08-30 22:56:36 +00:00
|
|
|
if (strlcpy(socket_path, path, sizeof socket_path) >=
|
|
|
|
sizeof socket_path) {
|
2014-01-09 14:05:55 +00:00
|
|
|
fprintf(stderr, "socket path too long: %s\n", path);
|
|
|
|
exit(1);
|
|
|
|
}
|
2012-07-10 11:53:01 +00:00
|
|
|
free(path);
|
2010-05-03 16:06:32 +00:00
|
|
|
|
2010-10-18 20:00:02 +00:00
|
|
|
/* Pass control to the client. */
|
2015-08-30 22:19:07 +00:00
|
|
|
exit(client_main(event_init(), argc, argv, flags));
|
2009-06-01 22:58:49 +00:00
|
|
|
}
|