Move -s and -c down a level so handling them is the responsibility of the command (with some helper functions), rather than the top-level. This changes the action command syntax so that -s and -c must be after the command rather than before.

2025-11-04 00:56:10 +00:00 · 2008-06-02 18:08:17 +00:00
parent 11ee55e755
commit c7243b73cb
42 changed files with 1086 additions and 437 deletions
--- a/16
+++ b/16
@@ -1,3 +1,17 @@
+02 June 2008
+
+* BIG CHANGE: -s and -c to specify session name and client name are now passed
+  after the command rather than before it. So, for example:
+
+	tmux -s0 neww
+
+  Becomes:
+
+	tmux neww -s0
+
+  This is to allow them to be used in the (forthcoming) configuration file
+  THIS WILL BREAK ANY CURRENT SCRIPTS OR ALIASES USING -s OR -c.
+
 01 June 2008

 * Bug fix: don't die if -k passed to link-window and the destination doesn't
@@ -316,4 +330,4 @@
  (including mutt, emacs). No status bar yet and no key remapping or other
  customisation.

-$Id: CHANGES,v 1.96 2008-06-01 20:32:41 nicm Exp $
+$Id: CHANGES,v 1.97 2008-06-02 18:08:16 nicm Exp $
--- a/10
+++ b/10
@@ -1,4 +1,4 @@
-# $Id: Makefile,v 1.53 2008-06-01 20:20:25 nicm Exp $
+# $Id: Makefile,v 1.54 2008-06-02 18:08:16 nicm Exp $

 .SUFFIXES: .c .o .y .h
 .PHONY: clean update-index.html upload-index.html
@@ -17,8 +17,8 @@ META?= \002 # C-b

 SRCS= tmux.c server.c server-msg.c server-fn.c buffer.c buffer-poll.c status.c \
      xmalloc.c xmalloc-debug.c input.c input-keys.c screen.c screen-display.c \
-      window.c session.c log.c client.c client-msg.c client-fn.c \
-      key-string.c key-bindings.c resize.c cmd.c cmd-new-session.c \
+      window.c session.c log.c client.c client-msg.c client-fn.c cfg.c \
+      key-string.c key-bindings.c resize.c cmd.c cmd-generic.c \
      cmd-detach-client.c cmd-list-sessions.c cmd-new-window.c cmd-bind-key.c \
      cmd-unbind-key.c cmd-previous-window.c cmd-last-window.c cmd-list-keys.c \
      cmd-set-option.c cmd-rename-window.c cmd-select-window.c \
@@ -27,8 +27,8 @@ SRCS= tmux.c server.c server-msg.c server-fn.c buffer.c buffer-poll.c status.c \
      cmd-link-window.c cmd-unlink-window.c cmd-next-window.c cmd-send-keys.c \
      cmd-swap-window.c cmd-rename-session.c cmd-kill-session.c \
      cmd-switch-client.c cmd-has-session.c cmd-scroll-mode.c cmd-copy-mode.c \
-      cmd-paste-buffer.c window-scroll.c window-more.c window-copy.c \
-      tty.c tty-keys.c tty-write.c screen-write.c screen-redraw.c
+      cmd-paste-buffer.c cmd-new-session.c window-scroll.c window-more.c \
+      window-copy.c tty.c tty-keys.c tty-write.c screen-write.c screen-redraw.c

 CC?= cc
 INCDIRS+= -I. -I- -I/usr/local/include
--- a/7
+++ b/7
@@ -70,6 +70,13 @@
 - poll(2) is broken on OS X/Darwin, a workaround for this would be nice
 - different screen model? layers perhaps? hmm

+---
+[18:20] *priteau* i found something in tmux that could be tweaked to be better
+[18:21] *priteau* in screen, when you type ^A-D, you can actually keep ctrl down
+        when typing the D
+[18:21] *priteau* in tmux, you have to release ctrl for the command to work
+---
+
 -- For 0.3 --------------------------------------------------------------------
 - chmod +x socket when any client is attached (upd in lost/accept)
 - clear EOL etc CANNOT rely on term using the current colour/attr and probably
--- a/cfg.c
+++ b/cfg.c
@@ -0,0 +1,212 @@
+/* $Id: cfg.c,v 1.1 2008-06-02 18:08:16 nicm Exp $ */
+
+/*
+ * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "tmux.h"
+
+/*
+ * Config file parser. Pretty quick and simple, each line is parsed into a
+ * argv array and executed as a command.
+ */
+
+char	 *cfg_string(FILE *, char, int);
+void printflike2 cfg_print(struct cmd_ctx *, const char *, ...);
+void printflike2 cfg_error(struct cmd_ctx *, const char *, ...);
+
+void printflike2
+cfg_print(unused struct cmd_ctx *ctx, unused const char *fmt, ...)
+{
+}
+
+void printflike2
+cfg_error(struct cmd_ctx *ctx, const char *fmt, ...)
+{
+	va_list	ap;
+	char   *msg;
+
+	va_start(ap, fmt);
+	xvasprintf(&msg, fmt, ap);
+	va_end(ap);
+
+	*msg = toupper((u_char) *msg);
+	// XXX
+	log_warnx("%s", msg);
+	xfree(msg);
+}
+
+int
+load_cfg(const char *path, char **cause)
+{
+	FILE   	       *f;
+	int		ch, argc;
+	u_int		line;
+	char	      **argv, *buf, *s;
+	size_t		len;
+	struct cmd     *cmd;
+	struct cmd_ctx	ctx;
+
+	if ((f = fopen(path, "rb")) == NULL) {
+		xasprintf(cause, "%s: %s", path, strerror(errno));
+		return (1);
+	}
+
+	argv = NULL;
+	argc = 0;
+
+	buf = NULL;
+	len = 0;
+
+	line = 1;
+	while ((ch = getc(f)) != EOF) {
+		switch (ch) {
+		case '#':
+			/* Comment: discard until EOL. */
+			while ((ch = getc(f)) != '\n' && ch != EOF)
+				;
+			line++;
+			break;
+		case '\'':
+			if ((s = cfg_string(f, '\'', 0)) == NULL)
+				goto error;
+			argv = xrealloc(argv, argc + 1, sizeof (char *));
+			argv[argc++] = s;
+			break;
+		case '"':
+			if ((s = cfg_string(f, '"', 1)) == NULL)
+				goto error;
+			argv = xrealloc(argv, argc + 1, sizeof (char *));
+			argv[argc++] = s;
+			break;
+		case '\n':
+		case EOF:
+		case ' ':
+		case '\t':
+			if (len == 0)
+				break;
+			buf[len] = '\0';
+			
+			argv = xrealloc(argv, argc + 1, sizeof (char *));
+			argv[argc++] = buf;
+			
+			buf = NULL;
+			len = 0;
+
+			if (ch != '\n' && ch != EOF)
+				break;
+			line++;
+			
+			if ((cmd = cmd_parse(argc, argv, cause)) == NULL) {
+				if (*cause != NULL)
+					xfree(*cause); /* XXX */
+				goto error;
+			}
+
+			ctx.cursession = NULL;
+			ctx.curclient = NULL;
+			
+			ctx.error = cfg_error;
+			ctx.print = cfg_print;
+			
+			ctx.cmdclient = NULL;
+			ctx.flags = CMD_KEY;
+			
+			cmd_exec(cmd, &ctx);			
+
+			cmd_free(cmd);
+
+			while (--argc >= 0)
+				xfree(argv[argc]);
+			argc = 0;
+			break;
+		default:
+			if (len >= SIZE_MAX - 2)
+				goto error;
+				
+			buf = xrealloc(buf, 1, len + 1);
+			buf[len++] = ch;
+			break;
+		}
+	}
+
+	fclose(f);
+
+	return (0);
+
+error:
+	while (--argc > 0)
+		xfree(argv[argc]);
+	xfree(argv);
+
+	if (buf != NULL)
+		xfree(buf);
+	
+	xasprintf(cause, "%s: error at line %u", path, line);
+	return (1);
+}
+
+char *
+cfg_string(FILE *f, char endch, int esc)
+{
+	int	ch;
+	char   *buf;
+	size_t	len;
+
+        buf = NULL;
+	len = 0;
+
+        while ((ch = getc(f)) != endch) {
+                switch (ch) {
+		case EOF:
+			xfree(buf);
+			return (NULL);
+                case '\\':
+			if (!esc)
+				break;
+                        switch (ch = getc(f)) {
+			case EOF:
+				xfree(buf);
+				return (NULL);
+                        case 'r':
+                                ch = '\r';
+                                break;
+                        case 'n':
+                                ch = '\n';
+                                break;
+                        case 't':
+                                ch = '\t';
+                                break;
+                        }
+                        break;
+                }
+
+		if (len >= SIZE_MAX - 2) {
+			xfree(buf);
+			return (NULL);
+		}
+		buf = xrealloc(buf, 1, len + 1);
+                buf[len++] = ch;
+        }
+
+        buf[len] = '\0';
+	return (buf);
+}
--- a/cmd-attach-session.c
+++ b/cmd-attach-session.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-attach-session.c,v 1.11 2007-12-06 09:46:21 nicm Exp $ */
+/* $Id: cmd-attach-session.c,v 1.12 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -26,19 +26,21 @@
 * Attach existing session to the current terminal.
 */

-int	cmd_attach_session_parse(void **, int, char **, char **);
+int	cmd_attach_session_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_attach_session_exec(void *, struct cmd_ctx *);
 void	cmd_attach_session_send(void *, struct buffer *);
 void	cmd_attach_session_recv(void **, struct buffer *);
 void	cmd_attach_session_free(void *);

 struct cmd_attach_session_data {
+	char	*sname;
 	int	 flag_detach;
 };

 const struct cmd_entry cmd_attach_session_entry = {
-	"attach-session", "attach", "[-d]",
-	CMD_CANTNEST|CMD_NOCLIENT,
+	"attach-session", "attach",
+	"[-d] [-s session-name]",
+	CMD_CANTNEST,
 	cmd_attach_session_parse,
 	cmd_attach_session_exec,
 	cmd_attach_session_send,
@@ -47,19 +49,24 @@ const struct cmd_entry cmd_attach_session_entry = {
 };

 int
-cmd_attach_session_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_attach_session_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_attach_session_data	*data;
 	int				 opt;

 	*ptr = data = xmalloc(sizeof *data);
+	data->sname = NULL;
 	data->flag_detach = 0;

-	while ((opt = getopt(argc, argv, "dn:")) != EOF) {
+	while ((opt = getopt(argc, argv, "ds:")) != EOF) {
 		switch (opt) {
 		case 'd':
 			data->flag_detach = 1;
 			break;
+		case 's':
+			data->sname = xstrdup(optarg);
+			break;
 		default:
 			goto usage;
 		}
@@ -72,8 +79,7 @@ cmd_attach_session_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_attach_session_entry.name, cmd_attach_session_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 	cmd_attach_session_free(data);
 	return (-1);
@@ -83,11 +89,15 @@ void
 cmd_attach_session_exec(void *ptr, struct cmd_ctx *ctx)
 {
 	struct cmd_attach_session_data	*data = ptr;
+	struct session			*s;
 	char				*cause;

 	if (ctx->flags & CMD_KEY)
 		return;

+	if ((s = cmd_find_session(ctx, data->sname)) == NULL)
+		return;
+
 	if (!(ctx->cmdclient->flags & CLIENT_TERMINAL)) {
 		ctx->error(ctx, "not a terminal");
 		return;
@@ -100,8 +110,8 @@ cmd_attach_session_exec(void *ptr, struct cmd_ctx *ctx)
 	}

 	if (data->flag_detach)
-		server_write_session(ctx->session, MSG_DETACH, NULL, 0);
-	ctx->cmdclient->session = ctx->session;
+		server_write_session(s, MSG_DETACH, NULL, 0);
+	ctx->cmdclient->session = s;

 	server_write_client(ctx->cmdclient, MSG_READY, NULL, 0);
 	recalculate_sizes();
@@ -114,6 +124,7 @@ cmd_attach_session_send(void *ptr, struct buffer *b)
 	struct cmd_attach_session_data	*data = ptr;

 	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->sname);
 }

 void
@@ -123,6 +134,7 @@ cmd_attach_session_recv(void **ptr, struct buffer *b)

 	*ptr = data = xmalloc(sizeof *data);
 	buffer_read(b, data, sizeof *data);
+	data->sname = cmd_recv_string(b);
 }

 void
@@ -130,5 +142,7 @@ cmd_attach_session_free(void *ptr)
 {
 	struct cmd_attach_session_data	*data = ptr;

+	if (data->sname != NULL)
+		xfree(data->sname);
 	xfree(data);
 }
--- a/cmd-bind-key.c
+++ b/cmd-bind-key.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-bind-key.c,v 1.8 2007-12-06 09:46:21 nicm Exp $ */
+/* $Id: cmd-bind-key.c,v 1.9 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -26,7 +26,7 @@
 * Bind a key to a command, this recurses through cmd_*.
 */

-int	cmd_bind_key_parse(void **, int, char **, char **);
+int	cmd_bind_key_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_bind_key_exec(void *, struct cmd_ctx *);
 void	cmd_bind_key_send(void *, struct buffer *);
 void	cmd_bind_key_recv(void **, struct buffer *);
@@ -38,8 +38,9 @@ struct cmd_bind_key_data {
 };

 const struct cmd_entry cmd_bind_key_entry = {
-	"bind-key", "bind", "key command [arguments]",
-	CMD_NOCLIENT|CMD_NOSESSION,
+	"bind-key", "bind",
+	"key command [arguments]",
+	0,
 	cmd_bind_key_parse,
 	cmd_bind_key_exec,
 	cmd_bind_key_send,
@@ -48,7 +49,8 @@ const struct cmd_entry cmd_bind_key_entry = {
 };

 int
-cmd_bind_key_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_bind_key_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_bind_key_data	*data;
 	int				 opt;
@@ -80,8 +82,7 @@ cmd_bind_key_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_bind_key_entry.name, cmd_bind_key_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 error:
 	cmd_bind_key_free(data);
--- a/cmd-copy-mode.c
+++ b/cmd-copy-mode.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-copy-mode.c,v 1.4 2007-12-06 10:04:42 nicm Exp $ */
+/* $Id: cmd-copy-mode.c,v 1.5 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -30,22 +30,26 @@
 void	cmd_copy_mode_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_copy_mode_entry = {
-	"copy-mode", NULL, "",
-	CMD_NOCLIENT,
-	NULL,
+	"copy-mode", NULL, 
+	CMD_SESSIONONLY_USAGE,
+	0,
+	cmd_sessiononly_parse,
 	cmd_copy_mode_exec,
-	NULL,
-	NULL,
-	NULL
+	cmd_sessiononly_send,
+	cmd_sessiononly_recv,
+	cmd_sessiononly_free
 };

 void
 cmd_copy_mode_exec(unused void *ptr, struct cmd_ctx *ctx)
 {
-	struct window	*w = ctx->session->curw->window;
+	struct session	*s;
+
+	if ((s = cmd_sessiononly_get(ptr, ctx)) == NULL)
+		return;

 	if (ctx->flags & CMD_KEY)
-		window_set_mode(w, &window_copy_mode);
+		window_set_mode(s->curw->window, &window_copy_mode);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
--- a/cmd-detach-client.c
+++ b/cmd-detach-client.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-detach-client.c,v 1.1 2007-11-16 21:12:31 nicm Exp $ */
+/* $Id: cmd-detach-client.c,v 1.2 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -29,19 +29,25 @@
 void	cmd_detach_client_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_detach_client_entry = {
-	"detach-client", "detach", "",
-	CMD_NOSESSION,
-	NULL,
+	"detach-client", "detach",
+	CMD_CLIENTONLY_USAGE,
+	0,
+	cmd_clientonly_parse,
 	cmd_detach_client_exec,
-	NULL,
-	NULL,
-	NULL
+	cmd_clientonly_send,
+	cmd_clientonly_recv,
+	cmd_clientonly_free
 };

 void
-cmd_detach_client_exec(unused void *ptr, struct cmd_ctx *ctx)
+cmd_detach_client_exec(void *ptr, struct cmd_ctx *ctx)
 {
-	server_write_client(ctx->client, MSG_DETACH, NULL, 0);
+	struct client	*c;
+
+	if ((c = cmd_clientonly_get(ptr, ctx)) == NULL)
+		return;
+
+	server_write_client(c, MSG_DETACH, NULL, 0);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
--- a/cmd-generic.c
+++ b/cmd-generic.c
@@ -0,0 +1,175 @@
+/* $Id: cmd-generic.c,v 1.1 2008-06-02 18:08:16 nicm Exp $ */
+
+/*
+ * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <getopt.h>
+
+#include "tmux.h"
+
+struct cmd_clientonly_data {
+	char	*cname;
+};
+
+struct cmd_sessiononly_data {
+	char	*sname;
+};
+
+int
+cmd_clientonly_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
+{
+	struct cmd_clientonly_data	*data;
+	int				 opt;
+
+	*ptr = data = xmalloc(sizeof *data);
+	data->cname = NULL;
+
+	while ((opt = getopt(argc, argv, "c:")) != EOF) {
+		switch (opt) {
+		case 'c':
+			data->cname = xstrdup(optarg);
+			break;
+		default:
+			goto usage;
+		}
+	}
+	argc -= optind;
+	argv += optind;
+	if (argc != 0)
+		goto usage;
+
+	return (0);
+
+usage:
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);
+
+	self->entry->free(data);
+	return (-1);
+}
+
+void
+cmd_clientonly_send(void *ptr, struct buffer *b)
+{
+	struct cmd_clientonly_data	*data = ptr;
+
+	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->cname);
+}
+
+void
+cmd_clientonly_recv(void **ptr, struct buffer *b)
+{
+	struct cmd_clientonly_data	*data;
+
+	*ptr = data = xmalloc(sizeof *data);
+	buffer_read(b, data, sizeof *data);
+	data->cname = cmd_recv_string(b);
+}
+
+void
+cmd_clientonly_free(void *ptr)
+{
+	struct cmd_clientonly_data	*data = ptr;
+
+	if (data->cname != NULL)
+		xfree(data->cname);
+	xfree(data);
+}
+
+struct client *
+cmd_clientonly_get(void *ptr, struct cmd_ctx *ctx)
+{
+	struct cmd_clientonly_data	*data = ptr;
+
+  	if (data != NULL)
+		return (cmd_find_client(ctx, data->cname));
+	return (cmd_find_client(ctx, NULL));
+}
+
+int
+cmd_sessiononly_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
+{
+	struct cmd_sessiononly_data	*data;
+	int				 opt;
+
+	*ptr = data = xmalloc(sizeof *data);
+	data->sname = NULL;
+
+	while ((opt = getopt(argc, argv, "s:")) != EOF) {
+		switch (opt) {
+		case 's':
+			data->sname = xstrdup(optarg);
+			break;
+		default:
+			goto usage;
+		}
+	}
+	argc -= optind;
+	argv += optind;
+	if (argc != 0)
+		goto usage;
+
+	return (0);
+
+usage:
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);
+
+	self->entry->free(data);
+	return (-1);
+}
+
+void
+cmd_sessiononly_send(void *ptr, struct buffer *b)
+{
+	struct cmd_sessiononly_data	*data = ptr;
+
+	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->sname);
+}
+
+void
+cmd_sessiononly_recv(void **ptr, struct buffer *b)
+{
+	struct cmd_sessiononly_data	*data;
+
+	*ptr = data = xmalloc(sizeof *data);
+	buffer_read(b, data, sizeof *data);
+	data->sname = cmd_recv_string(b);
+}
+
+void
+cmd_sessiononly_free(void *ptr)
+{
+	struct cmd_sessiononly_data	*data = ptr;
+
+	if (data->sname != NULL)
+		xfree(data->sname);
+	xfree(data);
+}
+
+struct session *
+cmd_sessiononly_get(void *ptr, struct cmd_ctx *ctx)
+{
+	struct cmd_sessiononly_data	*data = ptr;
+
+  	if (data != NULL)
+		return (cmd_find_session(ctx, data->sname));
+	return (cmd_find_session(ctx, NULL));
+}
--- a/cmd-has-session.c
+++ b/cmd-has-session.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-has-session.c,v 1.3 2007-11-16 21:12:31 nicm Exp $ */
+/* $Id: cmd-has-session.c,v 1.4 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -32,8 +32,9 @@
 void	cmd_has_session_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_has_session_entry = {
-	"has-session", "has", "",
-	CMD_NOCLIENT,
+	"has-session", "has",
+	"",
+	0,
 	NULL,
 	cmd_has_session_exec,
 	NULL,
--- a/cmd-kill-session.c
+++ b/cmd-kill-session.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-kill-session.c,v 1.5 2007-12-06 09:46:21 nicm Exp $ */
+/* $Id: cmd-kill-session.c,v 1.6 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -33,30 +33,35 @@
 void	cmd_kill_session_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_kill_session_entry = {
-	"kill-session", NULL, "",
-	CMD_NOCLIENT,
-	NULL,
+	"kill-session", NULL,
+	CMD_SESSIONONLY_USAGE,
+	0,
+	cmd_sessiononly_parse,
 	cmd_kill_session_exec,
-	NULL,
-	NULL,
-	NULL,
+	cmd_sessiononly_send,
+	cmd_sessiononly_recv,
+	cmd_sessiononly_free
 };

 void
-cmd_kill_session_exec(unused void *ptr, struct cmd_ctx *ctx)
+cmd_kill_session_exec(void *ptr, struct cmd_ctx *ctx)
 {
+	struct session	*s;
 	struct client	*c;
 	u_int		 i;

+	if ((s = cmd_sessiononly_get(ptr, ctx)) == NULL)
+		return;
+
 	for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 		c = ARRAY_ITEM(&clients, i);
-		if (c->session == ctx->session) {
+		if (c->session == s) {
 			c->session = NULL;
 			server_write_client(c, MSG_EXIT, NULL, 0);
 		}
 	}

-	session_destroy(ctx->session);
+	session_destroy(s);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
--- a/cmd-kill-window.c
+++ b/cmd-kill-window.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-kill-window.c,v 1.7 2007-12-06 09:46:21 nicm Exp $ */
+/* $Id: cmd-kill-window.c,v 1.8 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -27,19 +27,21 @@
 * Destroy window.
 */

-int	cmd_kill_window_parse(void **, int, char **, char **);
+int	cmd_kill_window_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_kill_window_exec(void *, struct cmd_ctx *);
 void	cmd_kill_window_send(void *, struct buffer *);
 void	cmd_kill_window_recv(void **, struct buffer *);
 void	cmd_kill_window_free(void *);

 struct cmd_kill_window_data {
+	char	*sname;
 	int	 idx;
 };

 const struct cmd_entry cmd_kill_window_entry = {
-	"kill-window", "killw", "[-i index]",
-	CMD_NOCLIENT,
+	"kill-window", "killw",
+	"[-i index] [-s session-name]",
+	0,
 	cmd_kill_window_parse,
 	cmd_kill_window_exec,
 	cmd_kill_window_send,
@@ -48,16 +50,18 @@ const struct cmd_entry cmd_kill_window_entry = {
 };

 int
-cmd_kill_window_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_kill_window_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_kill_window_data	*data;
 	const char			*errstr;
 	int				 opt;

 	*ptr = data = xmalloc(sizeof *data);
+	data->sname = NULL;
 	data->idx = -1;

-	while ((opt = getopt(argc, argv, "i:")) != EOF) {
+	while ((opt = getopt(argc, argv, "i:s:")) != EOF) {
 		switch (opt) {
 		case 'i':
 			data->idx = strtonum(optarg, 0, INT_MAX, &errstr);
@@ -66,6 +70,9 @@ cmd_kill_window_parse(void **ptr, int argc, char **argv, char **cause)
 				goto error;
 			}
 			break;
+		case 's':
+			data->sname = xstrdup(optarg);
+			break;
 		default:
 			goto usage;
 		}
@@ -78,8 +85,7 @@ cmd_kill_window_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_kill_window_entry.name, cmd_kill_window_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 error:
 	cmd_kill_window_free(data);
@@ -89,9 +95,9 @@ error:
 void
 cmd_kill_window_exec(void *ptr, struct cmd_ctx *ctx)
 {
-	struct cmd_kill_window_data	*data = ptr, std = { -1 };
+	struct cmd_kill_window_data	*data = ptr, std = { NULL, -1 };
+	struct session			*s;
 	struct client			*c;
-	struct winlinks			*wwl = &ctx->session->windows;
 	struct winlink			*wl;
 	u_int		 		 i;
 	int		 		 destroyed;
@@ -99,17 +105,20 @@ cmd_kill_window_exec(void *ptr, struct cmd_ctx *ctx)
 	if (data == NULL)
 		data = &std;

+	if ((s = cmd_find_session(ctx, data->sname)) == NULL)
+		return;
+
 	if (data->idx == -1)
-		wl = ctx->session->curw;
-	else if ((wl = winlink_find_by_index(wwl, data->idx)) == NULL) {
+		wl = s->curw;
+	else if ((wl = winlink_find_by_index(&s->windows, data->idx)) == NULL) {
 		ctx->error(ctx, "no window %d", data->idx);
 		return;
 	}

- 	destroyed = session_detach(ctx->session, wl);
+ 	destroyed = session_detach(s, wl);
 	for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 		c = ARRAY_ITEM(&clients, i);
-		if (c == NULL || c->session != ctx->session)
+		if (c == NULL || c->session != s)
 			continue;
 		if (destroyed) {
 			c->session = NULL;
@@ -128,6 +137,7 @@ cmd_kill_window_send(void *ptr, struct buffer *b)
 	struct cmd_kill_window_data	*data = ptr;

 	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->sname);
 }

 void
@@ -144,5 +154,7 @@ cmd_kill_window_free(void *ptr)
 {
 	struct cmd_kill_window_data	*data = ptr;

+	if (data->sname != NULL)
+		xfree(data->sname);
 	xfree(data);
 }
--- a/cmd-last-window.c
+++ b/cmd-last-window.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-last-window.c,v 1.6 2007-12-06 09:46:21 nicm Exp $ */
+/* $Id: cmd-last-window.c,v 1.7 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -30,20 +30,26 @@
 void	cmd_last_window_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_last_window_entry = {
-	"last-window", "last", "",
-	CMD_NOCLIENT,
-	NULL,
+	"last-window", "last", 
+	CMD_SESSIONONLY_USAGE,
+	0,
+	cmd_sessiononly_parse,
 	cmd_last_window_exec,
-	NULL,
-	NULL,
-	NULL
+	cmd_sessiononly_send,
+	cmd_sessiononly_recv,
+	cmd_sessiononly_free
 };

 void
-cmd_last_window_exec(unused void *ptr, struct cmd_ctx *ctx)
+cmd_last_window_exec(void *ptr, struct cmd_ctx *ctx)
 {
-	if (session_last(ctx->session) == 0)
-		server_redraw_session(ctx->session);
+	struct session	*s;
+
+	if ((s = cmd_sessiononly_get(ptr, ctx)) == NULL)
+		return;
+
+	if (session_last(s) == 0)
+		server_redraw_session(s);
 	else
 		ctx->error(ctx, "no last window");

--- a/cmd-link-window.c
+++ b/cmd-link-window.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-link-window.c,v 1.10 2008-06-01 20:32:41 nicm Exp $ */
+/* $Id: cmd-link-window.c,v 1.11 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -27,13 +27,14 @@
 * Link a window into another session.
 */

-int	cmd_link_window_parse(void **, int, char **, char **);
+int	cmd_link_window_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_link_window_exec(void *, struct cmd_ctx *);
 void	cmd_link_window_send(void *, struct buffer *);
 void	cmd_link_window_recv(void **, struct buffer *);
 void	cmd_link_window_free(void *);

 struct cmd_link_window_data {
+	char	*sname;
 	int	 flag_detached;
 	int	 flag_kill;
 	int	 dstidx;
@@ -42,8 +43,9 @@ struct cmd_link_window_data {
 };

 const struct cmd_entry cmd_link_window_entry = {
-	"link-window", "linkw", "[-dk] [-i index] name index",
-	CMD_NOCLIENT,
+	"link-window", "linkw",
+	"[-dk] [-s session-name] [-i index] session-name index",
+	0,
 	cmd_link_window_parse,
 	cmd_link_window_exec,
 	cmd_link_window_send,
@@ -52,21 +54,26 @@ const struct cmd_entry cmd_link_window_entry = {
 };

 int
-cmd_link_window_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_link_window_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_link_window_data	*data;
 	const char			*errstr;
 	int				 opt;

 	*ptr = data = xmalloc(sizeof *data);
+	data->sname = NULL;
 	data->flag_detached = 0;
 	data->flag_kill = 0;
 	data->dstidx = -1;
 	data->srcidx = -1;
 	data->srcname = NULL;

-	while ((opt = getopt(argc, argv, "dki:")) != EOF) {
+	while ((opt = getopt(argc, argv, "di:ks:")) != EOF) {
 		switch (opt) {
+		case 'd':
+			data->flag_detached = 1;
+			break;
 		case 'i':
 			data->dstidx = strtonum(optarg, 0, INT_MAX, &errstr);
 			if (errstr != NULL) {
@@ -74,12 +81,12 @@ cmd_link_window_parse(void **ptr, int argc, char **argv, char **cause)
 				goto error;
 			}
 			break;
-		case 'd':
-			data->flag_detached = 1;
-			break;
 		case 'k':
 			data->flag_kill = 1;
 			break;
+		case 's':
+			data->sname = xstrdup(optarg);
+			break;
 		default:
 			goto usage;
 		}
@@ -99,8 +106,7 @@ cmd_link_window_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_link_window_entry.name, cmd_link_window_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 error:
 	cmd_link_window_free(data);
@@ -111,12 +117,15 @@ void
 cmd_link_window_exec(void *ptr, struct cmd_ctx *ctx)
 {
 	struct cmd_link_window_data	*data = ptr;
-	struct session			*dst = ctx->session, *src;
+	struct session			*s, *src;
 	struct winlink			*wl, *wl2;

 	if (data == NULL)
 		return;

+	if ((s = cmd_find_session(ctx, data->sname)) == NULL)
+		return;
+
 	if ((src = session_find(data->srcname)) == NULL) {
 		ctx->error(ctx, "session not found: %s", data->srcname);
 		return;
@@ -137,7 +146,7 @@ cmd_link_window_exec(void *ptr, struct cmd_ctx *ctx)
 	if (data->dstidx < 0)
 		data->dstidx = -1;
 	if (data->flag_kill && data->dstidx != -1) {
-		wl2 = winlink_find_by_index(&dst->windows, data->dstidx);
+		wl2 = winlink_find_by_index(&s->windows, data->dstidx);
 		if (wl2 == NULL) {
 			ctx->error(ctx, "no window %d", data->dstidx);
 			return;
@@ -147,16 +156,16 @@ cmd_link_window_exec(void *ptr, struct cmd_ctx *ctx)
 		 * Can't use session_detach as it will destroy session if this
 		 * makes it empty.
 		 */
-		session_cancelbell(dst, wl2);
-		winlink_remove(&dst->windows, wl2);
+		session_cancelbell(s, wl2);
+		winlink_remove(&s->windows, wl2);

 		/* Force select/redraw if current. */
-		if (wl2 == dst->curw) {
+		if (wl2 == s->curw) {
 			data->flag_detached = 0;
-			dst->curw = NULL;
+			s->curw = NULL;
 		}
-		if (wl2 == dst->lastw)
-			dst->lastw = NULL;
+		if (wl2 == s->lastw)
+			s->lastw = NULL;

 		/*
 		 * Can't error out after this or there could be an empty
@@ -164,17 +173,17 @@ cmd_link_window_exec(void *ptr, struct cmd_ctx *ctx)
 		 */
 	}

-	wl = session_attach(dst, wl->window, data->dstidx);
+	wl = session_attach(s, wl->window, data->dstidx);
 	if (wl == NULL) {
 		ctx->error(ctx, "index in use: %d", data->dstidx);
 		return;
 	}

 	if (!data->flag_detached) {
-		session_select(dst, wl->idx);
-		server_redraw_session(dst);
+		session_select(s, wl->idx);
+		server_redraw_session(s);
 	} else
-		server_status_session(dst);
+		server_status_session(s);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
@@ -186,6 +195,7 @@ cmd_link_window_send(void *ptr, struct buffer *b)
 	struct cmd_link_window_data	*data = ptr;

 	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->sname);
 	cmd_send_string(b, data->srcname);
 }

@@ -196,6 +206,7 @@ cmd_link_window_recv(void **ptr, struct buffer *b)

 	*ptr = data = xmalloc(sizeof *data);
 	buffer_read(b, data, sizeof *data);
+	data->sname = cmd_recv_string(b);
 	data->srcname = cmd_recv_string(b);
 }

@@ -204,6 +215,8 @@ cmd_link_window_free(void *ptr)
 {
 	struct cmd_link_window_data	*data = ptr;

+	if (data->sname != NULL)
+		xfree(data->sname);
 	if (data->srcname != NULL)
 		xfree(data->srcname);
 	xfree(data);
--- a/cmd-list-clients.c
+++ b/cmd-list-clients.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-list-clients.c,v 1.3 2007-11-27 19:23:33 nicm Exp $ */
+/* $Id: cmd-list-clients.c,v 1.4 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -31,8 +31,9 @@
 void	cmd_list_clients_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_list_clients_entry = {
-	"list-clients", "lsc", "",
-	CMD_NOCLIENT|CMD_NOSESSION,
+	"list-clients", "lsc",
+	"",
+	0,
 	NULL,
 	cmd_list_clients_exec,
 	NULL,
--- a/cmd-list-keys.c
+++ b/cmd-list-keys.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-list-keys.c,v 1.5 2007-11-16 21:12:31 nicm Exp $ */
+/* $Id: cmd-list-keys.c,v 1.6 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -30,8 +30,9 @@
 void	cmd_list_keys_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_list_keys_entry = {
-	"list-keys", "lsk", "",
-	CMD_NOCLIENT|CMD_NOSESSION,
+	"list-keys", "lsk",
+	"",
+	0,
 	NULL,
 	cmd_list_keys_exec,
 	NULL,
--- a/cmd-list-sessions.c
+++ b/cmd-list-sessions.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-list-sessions.c,v 1.9 2007-11-16 21:12:31 nicm Exp $ */
+/* $Id: cmd-list-sessions.c,v 1.10 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -32,7 +32,7 @@ void	cmd_list_sessions_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_list_sessions_entry = {
 	"list-sessions", "ls", "",
-	CMD_NOCLIENT|CMD_NOSESSION,
+	0,
 	NULL,
 	cmd_list_sessions_exec,
 	NULL,
--- a/cmd-list-windows.c
+++ b/cmd-list-windows.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-list-windows.c,v 1.15 2007-12-06 09:46:21 nicm Exp $ */
+/* $Id: cmd-list-windows.c,v 1.16 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -30,24 +30,29 @@
 void	cmd_list_windows_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_list_windows_entry = {
-	"list-windows", "lsw", NULL,
-	CMD_NOCLIENT,
-	NULL,
+	"list-windows", "lsw",
+	CMD_SESSIONONLY_USAGE,
+	0,
+	cmd_sessiononly_parse,
 	cmd_list_windows_exec,
-	NULL,
-	NULL,
-	NULL
+	cmd_sessiononly_send,
+	cmd_sessiononly_recv,
+	cmd_sessiononly_free
 };

 void
 cmd_list_windows_exec(unused void *ptr, struct cmd_ctx *ctx)
 {
+	struct session		*s;
 	struct winlink		*wl;
 	struct window		*w;
 	u_int			 i;
 	unsigned long long	 size;

-	RB_FOREACH(wl, winlinks, &ctx->session->windows) {
+	if ((s = cmd_sessiononly_get(ptr, ctx)) == NULL)
+		return;
+
+	RB_FOREACH(wl, winlinks, &s->windows) {
 		w = wl->window;

 		size = 0;
--- a/cmd-new-session.c
+++ b/cmd-new-session.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-new-session.c,v 1.19 2007-12-06 09:46:21 nicm Exp $ */
+/* $Id: cmd-new-session.c,v 1.20 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -26,7 +26,7 @@
 * Create a new session and attach to the current terminal unless -d is given.
 */

-int	cmd_new_session_parse(void **, int, char **, char **);
+int	cmd_new_session_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_new_session_exec(void *, struct cmd_ctx *);
 void	cmd_new_session_send(void *, struct buffer *);
 void	cmd_new_session_recv(void **, struct buffer *);
@@ -42,7 +42,7 @@ struct cmd_new_session_data {
 const struct cmd_entry cmd_new_session_entry = {
 	"new-session", "new",
 	"[-d] [-s session-name] [-n window-name] [command]",
-	CMD_STARTSERVER|CMD_NOCLIENT|CMD_NOSESSION|CMD_CANTNEST,
+	CMD_STARTSERVER|CMD_CANTNEST,
 	cmd_new_session_parse,
 	cmd_new_session_exec,
 	cmd_new_session_send,
@@ -51,7 +51,8 @@ const struct cmd_entry cmd_new_session_entry = {
 };

 int
-cmd_new_session_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_new_session_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_new_session_data	*data;
 	int				 opt;
@@ -88,8 +89,7 @@ cmd_new_session_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_new_session_entry.name, cmd_new_session_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 	cmd_new_session_free(data);
 	return (-1);
--- a/cmd-new-window.c
+++ b/cmd-new-window.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-new-window.c,v 1.14 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-new-window.c,v 1.15 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -27,13 +27,14 @@
 * Create a new window.
 */

-int	cmd_new_window_parse(void **, int, char **, char **);
+int	cmd_new_window_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_new_window_exec(void *, struct cmd_ctx *);
 void	cmd_new_window_send(void *, struct buffer *);
 void	cmd_new_window_recv(void **, struct buffer *);
 void	cmd_new_window_free(void *);

 struct cmd_new_window_data {
+	char	*sname;
 	char	*name;
 	char	*cmd;
 	int	 idx;
@@ -41,8 +42,9 @@ struct cmd_new_window_data {
 };

 const struct cmd_entry cmd_new_window_entry = {
-	"new-window", "neww", "[-d] [-i index] [-n name] [command]",
-	CMD_NOCLIENT,
+	"new-window", "neww",
+	"[-d] [-s session-name] [-i index] [-n name] [command]",
+	0,
 	cmd_new_window_parse,
 	cmd_new_window_exec,
 	cmd_new_window_send,
@@ -51,19 +53,21 @@ const struct cmd_entry cmd_new_window_entry = {
 };

 int
-cmd_new_window_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_new_window_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_new_window_data	*data;
 	const char			*errstr;
 	int				 opt;

 	*ptr = data = xmalloc(sizeof *data);
+	data->sname = NULL;
 	data->idx = -1;
 	data->flag_detached = 0;
 	data->name = NULL;
 	data->cmd = NULL;

-	while ((opt = getopt(argc, argv, "di:n:")) != EOF) {
+	while ((opt = getopt(argc, argv, "di:n:s:")) != EOF) {
 		switch (opt) {
 		case 'i':
 			data->idx = strtonum(optarg, 0, INT_MAX, &errstr);
@@ -78,6 +82,9 @@ cmd_new_window_parse(void **ptr, int argc, char **argv, char **cause)
 		case 'd':
 			data->flag_detached = 1;
 			break;
+		case 's':
+			data->sname = xstrdup(optarg);
+			break;
 		default:
 			goto usage;
 		}
@@ -93,8 +100,7 @@ cmd_new_window_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_new_window_entry.name, cmd_new_window_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 error:
 	cmd_new_window_free(data);
@@ -105,7 +111,8 @@ void
 cmd_new_window_exec(void *ptr, struct cmd_ctx *ctx)
 {
 	struct cmd_new_window_data	*data = ptr;
-	struct cmd_new_window_data	 std = { NULL, NULL, -1, 0 };
+	struct cmd_new_window_data	 std = { NULL, NULL, NULL, -1, 0 };
+	struct session			*s;
 	struct winlink			*wl;
 	char				*cmd;

@@ -116,18 +123,21 @@ cmd_new_window_exec(void *ptr, struct cmd_ctx *ctx)
 	if (cmd == NULL)
 		cmd = default_command;

+	if ((s = cmd_find_session(ctx, data->sname)) == NULL)
+		return;
+
 	if (data->idx < 0)
 		data->idx = -1;
-	wl = session_new(ctx->session, data->name, cmd, data->idx);
+	wl = session_new(s, data->name, cmd, data->idx);
 	if (wl == NULL) {
 		ctx->error(ctx, "command failed: %s", cmd);
 		return;
 	}
 	if (!data->flag_detached) {
-		session_select(ctx->session, wl->idx);
-		server_redraw_session(ctx->session);
+		session_select(s, wl->idx);
+		server_redraw_session(s);
 	} else
-		server_status_session(ctx->session);
+		server_status_session(s);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
@@ -139,6 +149,7 @@ cmd_new_window_send(void *ptr, struct buffer *b)
 	struct cmd_new_window_data	*data = ptr;

 	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->sname);
 	cmd_send_string(b, data->name);
 	cmd_send_string(b, data->cmd);
 }
@@ -150,6 +161,7 @@ cmd_new_window_recv(void **ptr, struct buffer *b)

 	*ptr = data = xmalloc(sizeof *data);
 	buffer_read(b, data, sizeof *data);
+	data->sname = cmd_recv_string(b);
 	data->name = cmd_recv_string(b);
 	data->cmd = cmd_recv_string(b);
 }
@@ -159,6 +171,8 @@ cmd_new_window_free(void *ptr)
 {
 	struct cmd_new_window_data	*data = ptr;

+	if (data->sname != NULL)
+		xfree(data->sname);
 	if (data->name != NULL)
 		xfree(data->name);
 	if (data->cmd != NULL)
--- a/cmd-next-window.c
+++ b/cmd-next-window.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-next-window.c,v 1.6 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-next-window.c,v 1.7 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -30,20 +30,26 @@
 void	cmd_next_window_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_next_window_entry = {
-	"next-window", "next", "",
-	CMD_NOCLIENT,
-	NULL,
+	"next-window", "next",
+	CMD_SESSIONONLY_USAGE,
+	0,
+	cmd_sessiononly_parse,
 	cmd_next_window_exec,
-	NULL,
-	NULL,
-	NULL
+	cmd_sessiononly_send,
+	cmd_sessiononly_recv,
+	cmd_sessiononly_free
 };

 void
-cmd_next_window_exec(unused void *ptr, struct cmd_ctx *ctx)
+cmd_next_window_exec(void *ptr, struct cmd_ctx *ctx)
 {
-	if (session_next(ctx->session) == 0)
-		server_redraw_session(ctx->session);
+	struct session	*s;
+
+	if ((s = cmd_sessiononly_get(ptr, ctx)) == NULL)
+		return;
+
+	if (session_next(s) == 0)
+		server_redraw_session(s);
 	else
 		ctx->error(ctx, "no next window");

--- a/cmd-paste-buffer.c
+++ b/cmd-paste-buffer.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-paste-buffer.c,v 1.2 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-paste-buffer.c,v 1.3 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -31,25 +31,29 @@
 void	cmd_paste_buffer_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_paste_buffer_entry = {
-	"paste-buffer", NULL, "paste",
-	CMD_NOCLIENT,
-	NULL,
+	"paste-buffer", "paste",
+	CMD_SESSIONONLY_USAGE,
+	0,
+	cmd_sessiononly_parse,
 	cmd_paste_buffer_exec,
-	NULL,
-	NULL,
-	NULL
+	cmd_sessiononly_send,
+	cmd_sessiononly_recv,
+	cmd_sessiononly_free
 };

 void
 cmd_paste_buffer_exec(unused void *ptr, struct cmd_ctx *ctx)
 {
-	struct window	*w = ctx->session->curw->window;
+	struct session	*s;
+	struct window	*w;

-	if (ctx->flags & CMD_KEY) {
-		if (paste_buffer != NULL && *paste_buffer != '\0') {
-			buffer_write(
-			    w->out, paste_buffer, strlen(paste_buffer));
-		}
+	if ((s = cmd_sessiononly_get(ptr, ctx)) == NULL)
+		return;
+	w = s->curw->window;
+
+	if (ctx->flags & CMD_KEY &&
+	    paste_buffer != NULL && *paste_buffer != '\0') {
+		buffer_write(w->out, paste_buffer, strlen(paste_buffer));
 	}

 	if (ctx->cmdclient != NULL)
--- a/cmd-previous-window.c
+++ b/cmd-previous-window.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-previous-window.c,v 1.6 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-previous-window.c,v 1.7 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -30,20 +30,26 @@
 void	cmd_previous_window_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_previous_window_entry = {
-	"previous-window", "prev", "",
-	CMD_NOCLIENT,
-	NULL,
+	"previous-window", "prev",
+	CMD_SESSIONONLY_USAGE,
+	0,
+	cmd_sessiononly_parse,
 	cmd_previous_window_exec,
-	NULL,
-	NULL,
-	NULL
+	cmd_sessiononly_send,
+	cmd_sessiononly_recv,
+	cmd_sessiononly_free
 };

 void
-cmd_previous_window_exec(unused void *ptr, struct cmd_ctx *ctx)
+cmd_previous_window_exec(void *ptr, struct cmd_ctx *ctx)
 {
-	if (session_previous(ctx->session) == 0)
-		server_redraw_session(ctx->session);
+	struct session	*s;
+
+	if ((s = cmd_sessiononly_get(ptr, ctx)) == NULL)
+		return;
+
+	if (session_previous(s) == 0)
+		server_redraw_session(s);
 	else
 		ctx->error(ctx, "no previous window");

--- a/cmd-refresh-client.c
+++ b/cmd-refresh-client.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-refresh-client.c,v 1.1 2007-11-16 21:12:31 nicm Exp $ */
+/* $Id: cmd-refresh-client.c,v 1.2 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -29,19 +29,25 @@
 void	cmd_refresh_client_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_refresh_client_entry = {
-	"refresh-client", "refresh", "",
+	"refresh-client", "refresh",
+	CMD_CLIENTONLY_USAGE,
 	0,
-	NULL,
+	cmd_clientonly_parse,
 	cmd_refresh_client_exec,
-	NULL,
-	NULL,
-	NULL
+	cmd_clientonly_send,
+	cmd_clientonly_recv,
+	cmd_clientonly_free
 };

 void
-cmd_refresh_client_exec(unused void *ptr, struct cmd_ctx *ctx)
+cmd_refresh_client_exec(void *ptr, struct cmd_ctx *ctx)
 {
-	server_redraw_client(ctx->client);
+	struct client	*c;
+
+	if ((c = cmd_clientonly_get(ptr, ctx)) == NULL)
+		return;
+
+	server_redraw_client(c);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
--- a/cmd-rename-session.c
+++ b/cmd-rename-session.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-rename-session.c,v 1.4 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-rename-session.c,v 1.5 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -27,19 +27,21 @@
 * Change session name.
 */

-int	cmd_rename_session_parse(void **, int, char **, char **);
+int	cmd_rename_session_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_rename_session_exec(void *, struct cmd_ctx *);
 void	cmd_rename_session_send(void *, struct buffer *);
 void	cmd_rename_session_recv(void **, struct buffer *);
 void	cmd_rename_session_free(void *);

 struct cmd_rename_session_data {
+	char	*sname;
 	char	*newname;
 };

 const struct cmd_entry cmd_rename_session_entry = {
-	"rename-session", "rename", "new-name",
-	CMD_NOCLIENT,
+	"rename-session", "rename",
+	"[-s session-name] new-name",
+	0,
 	cmd_rename_session_parse,
 	cmd_rename_session_exec,
 	cmd_rename_session_send,
@@ -48,16 +50,21 @@ const struct cmd_entry cmd_rename_session_entry = {
 };

 int
-cmd_rename_session_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_rename_session_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_rename_session_data	*data;
 	int				 opt;

 	*ptr = data = xmalloc(sizeof *data);
+	data->sname = NULL;
 	data->newname = NULL;

-	while ((opt = getopt(argc, argv, "")) != EOF) {
+	while ((opt = getopt(argc, argv, "s:")) != EOF) {
 		switch (opt) {
+		case 's':
+			data->sname = xstrdup(optarg);
+			break;
 		default:
 			goto usage;
 		}
@@ -72,8 +79,7 @@ cmd_rename_session_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_rename_session_entry.name, cmd_rename_session_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 	cmd_rename_session_free(data);
 	return (-1);
@@ -83,12 +89,16 @@ void
 cmd_rename_session_exec(void *ptr, struct cmd_ctx *ctx)
 {
 	struct cmd_rename_session_data	*data = ptr;
+	struct session			*s;

 	if (data == NULL)
 		return;

-	xfree(ctx->session->name);
-	ctx->session->name = xstrdup(data->newname);
+	if ((s = cmd_find_session(ctx, data->sname)) == NULL)
+		return;
+
+	xfree(s->name);
+	s->name = xstrdup(data->newname);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
@@ -100,6 +110,7 @@ cmd_rename_session_send(void *ptr, struct buffer *b)
 	struct cmd_rename_session_data	*data = ptr;

 	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->sname);
 	cmd_send_string(b, data->newname);
 }

@@ -110,6 +121,7 @@ cmd_rename_session_recv(void **ptr, struct buffer *b)

 	*ptr = data = xmalloc(sizeof *data);
 	buffer_read(b, data, sizeof *data);
+	data->sname = cmd_recv_string(b);
 	data->newname = cmd_recv_string(b);
 }

@@ -118,6 +130,8 @@ cmd_rename_session_free(void *ptr)
 {
 	struct cmd_rename_session_data	*data = ptr;

+	if (data->sname != NULL)
+		xfree(data->sname);
 	if (data->newname != NULL)
 		xfree(data->newname);
 	xfree(data);
--- a/cmd-rename-window.c
+++ b/cmd-rename-window.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-rename-window.c,v 1.14 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-rename-window.c,v 1.15 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -27,20 +27,22 @@
 * Rename window by index.
 */

-int	cmd_rename_window_parse(void **, int, char **, char **);
+int	cmd_rename_window_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_rename_window_exec(void *, struct cmd_ctx *);
 void	cmd_rename_window_send(void *, struct buffer *);
 void	cmd_rename_window_recv(void **, struct buffer *);
 void	cmd_rename_window_free(void *);

 struct cmd_rename_window_data {
+	char	*sname;
 	int	 idx;
 	char	*newname;
 };

 const struct cmd_entry cmd_rename_window_entry = {
-	"rename-window", "renamew", "[-i index] new-name",
-	CMD_NOCLIENT,
+	"rename-window", "renamew",
+	"[-i index] [-s session-name] new-name",
+	0,
 	cmd_rename_window_parse,
 	cmd_rename_window_exec,
 	cmd_rename_window_send,
@@ -49,17 +51,19 @@ const struct cmd_entry cmd_rename_window_entry = {
 };

 int
-cmd_rename_window_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_rename_window_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_rename_window_data	*data;
 	const char			*errstr;
 	int				 opt;

 	*ptr = data = xmalloc(sizeof *data);
+	data->sname = NULL;
 	data->idx = -1;
 	data->newname = NULL;

-	while ((opt = getopt(argc, argv, "i:")) != EOF) {
+	while ((opt = getopt(argc, argv, "i:s:")) != EOF) {
 		switch (opt) {
 		case 'i':
 			data->idx = strtonum(optarg, 0, INT_MAX, &errstr);
@@ -68,6 +72,9 @@ cmd_rename_window_parse(void **ptr, int argc, char **argv, char **cause)
 				goto error;
 			}
 			break;
+		case 's':
+			data->sname = xstrdup(optarg);
+			break;
 		default:
 			goto usage;
 		}
@@ -82,8 +89,7 @@ cmd_rename_window_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_rename_window_entry.name, cmd_rename_window_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 error:
 	cmd_rename_window_free(data);
@@ -94,22 +100,25 @@ void
 cmd_rename_window_exec(void *ptr, struct cmd_ctx *ctx)
 {
 	struct cmd_rename_window_data	*data = ptr;
-	struct winlinks			*wwl = &ctx->session->windows;
+	struct session			*s;
 	struct winlink			*wl;

 	if (data == NULL)
 		return;

+	if ((s = cmd_find_session(ctx, data->sname)) == NULL)
+		return;
+
 	if (data->idx == -1)
-		wl = ctx->session->curw;
-	else if ((wl = winlink_find_by_index(wwl, data->idx)) == NULL) {
+		wl = s->curw;
+	else if ((wl = winlink_find_by_index(&s->windows, data->idx)) == NULL) {
 		ctx->error(ctx, "no window %d", data->idx);
 		return;
 	}
 	xfree(wl->window->name);
 	wl->window->name = xstrdup(data->newname);

-	server_status_session(ctx->session);
+	server_status_session(s);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
@@ -121,6 +130,7 @@ cmd_rename_window_send(void *ptr, struct buffer *b)
 	struct cmd_rename_window_data	*data = ptr;

 	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->sname);
 	cmd_send_string(b, data->newname);
 }

@@ -131,6 +141,7 @@ cmd_rename_window_recv(void **ptr, struct buffer *b)

 	*ptr = data = xmalloc(sizeof *data);
 	buffer_read(b, data, sizeof *data);
+	data->sname = cmd_recv_string(b);
 	data->newname = cmd_recv_string(b);
 }

@@ -139,6 +150,8 @@ cmd_rename_window_free(void *ptr)
 {
 	struct cmd_rename_window_data	*data = ptr;

+	if (data->sname != NULL)
+		xfree(data->sname);
 	if (data->newname != NULL)
 		xfree(data->newname);
 	xfree(data);
--- a/cmd-scroll-mode.c
+++ b/cmd-scroll-mode.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-scroll-mode.c,v 1.6 2007-12-06 10:04:42 nicm Exp $ */
+/* $Id: cmd-scroll-mode.c,v 1.7 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -30,22 +30,26 @@
 void	cmd_scroll_mode_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_scroll_mode_entry = {
-	"scroll-mode", NULL, "",
-	CMD_NOCLIENT,
-	NULL,
+	"scroll-mode", NULL,
+	CMD_SESSIONONLY_USAGE,
+	0,
+	cmd_sessiononly_parse,
 	cmd_scroll_mode_exec,
-	NULL,
-	NULL,
-	NULL
+	cmd_sessiononly_send,
+	cmd_sessiononly_recv,
+	cmd_sessiononly_free
 };

 void
-cmd_scroll_mode_exec(unused void *ptr, struct cmd_ctx *ctx)
+cmd_scroll_mode_exec(void *ptr, struct cmd_ctx *ctx)
 {
-	struct window	*w = ctx->session->curw->window;
+	struct session	*s;
+
+	if ((s = cmd_sessiononly_get(ptr, ctx)) == NULL)
+		return;

 	if (ctx->flags & CMD_KEY)
-		window_set_mode(w, &window_scroll_mode);
+		window_set_mode(s->curw->window, &window_scroll_mode);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
--- a/cmd-select-window.c
+++ b/cmd-select-window.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-select-window.c,v 1.11 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-select-window.c,v 1.12 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -27,19 +27,21 @@
 * Select window by index.
 */

-int	cmd_select_window_parse(void **, int, char **, char **);
+int	cmd_select_window_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_select_window_exec(void *, struct cmd_ctx *);
 void	cmd_select_window_send(void *, struct buffer *);
 void	cmd_select_window_recv(void **, struct buffer *);
 void	cmd_select_window_free(void *);

 struct cmd_select_window_data {
+	char	*sname;
 	int	idx;
 };

 const struct cmd_entry cmd_select_window_entry = {
-	"select-window", "selectw", "index",
-	CMD_NOCLIENT,
+	"select-window", "selectw",
+	"[-s session-name] index",
+	0,
 	cmd_select_window_parse,
 	cmd_select_window_exec,
 	cmd_select_window_send,
@@ -58,20 +60,26 @@ cmd_select_window_default(void **ptr, int key)
 	struct cmd_select_window_data	*data;

 	*ptr = data = xmalloc(sizeof *data);
+	data->sname = NULL;
 	data->idx = key - '0';
 }

 int
-cmd_select_window_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_select_window_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_select_window_data	*data;
 	const char			*errstr;
 	int				 opt;

 	*ptr = data = xmalloc(sizeof *data);
+	data->sname = NULL;

-	while ((opt = getopt(argc, argv, "")) != EOF) {
+	while ((opt = getopt(argc, argv, "s:")) != EOF) {
 		switch (opt) {
+		case 's':
+			data->sname = xstrdup(optarg);
+			break;
 		default:
 			goto usage;
 		}
@@ -90,8 +98,7 @@ cmd_select_window_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_select_window_entry.name, cmd_select_window_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 error:
 	cmd_select_window_free(data);
@@ -102,13 +109,17 @@ void
 cmd_select_window_exec(void *ptr, struct cmd_ctx *ctx)
 {
 	struct cmd_select_window_data	*data = ptr;
+	struct session			*s;

 	if (data == NULL)
 		return;

-	switch (session_select(ctx->session, data->idx)) {
+	if ((s = cmd_find_session(ctx, data->sname)) == NULL)
+		return;
+
+	switch (session_select(s, data->idx)) {
 	case 0:
-		server_redraw_session(ctx->session);
+		server_redraw_session(s);
 		break;
 	case 1:
 		break;
@@ -127,6 +138,7 @@ cmd_select_window_send(void *ptr, struct buffer *b)
 	struct cmd_select_window_data	*data = ptr;

 	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->sname);
 }

 void
@@ -136,6 +148,7 @@ cmd_select_window_recv(void **ptr, struct buffer *b)

 	*ptr = data = xmalloc(sizeof *data);
 	buffer_read(b, data, sizeof *data);
+	data->sname = cmd_recv_string(b);
 }

 void
@@ -143,5 +156,7 @@ cmd_select_window_free(void *ptr)
 {
 	struct cmd_select_window_data	*data = ptr;

+	if (data->sname != NULL)
+		xfree(data->sname);
 	xfree(data);
 }
--- a/cmd-send-keys.c
+++ b/cmd-send-keys.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-send-keys.c,v 1.1 2008-06-01 20:20:25 nicm Exp $ */
+/* $Id: cmd-send-keys.c,v 1.2 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -27,19 +27,20 @@
 * Change session name.
 */

-int	cmd_send_keys_parse(void **, int, char **, char **);
+int	cmd_send_keys_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_send_keys_exec(void *, struct cmd_ctx *);
 void	cmd_send_keys_send(void *, struct buffer *);
 void	cmd_send_keys_recv(void **, struct buffer *);
 void	cmd_send_keys_free(void *);

 struct cmd_send_keys_data {
+	char	*cname;
  	u_int	 nkeys;
 	int	*keys;
 };

 const struct cmd_entry cmd_send_keys_entry = {
-	"send-keys", "send", "key ...",
+	"send-keys", "send", "[-c client-name] key ...",
 	0,
 	cmd_send_keys_parse,
 	cmd_send_keys_exec,
@@ -49,18 +50,23 @@ const struct cmd_entry cmd_send_keys_entry = {
 };

 int
-cmd_send_keys_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_send_keys_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_send_keys_data	*data;
 	int				 opt, key;
 	char				*s;

 	*ptr = data = xmalloc(sizeof *data);
+	data->cname = NULL;
 	data->nkeys = 0;
 	data->keys = NULL;

-	while ((opt = getopt(argc, argv, "")) != EOF) {
+	while ((opt = getopt(argc, argv, "c:")) != EOF) {
 		switch (opt) {
+		case 'c':
+			data->cname = xstrdup(optarg);
+			break;
 		default:
 			goto usage;
 		}
@@ -89,8 +95,7 @@ cmd_send_keys_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_send_keys_entry.name, cmd_send_keys_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 	cmd_send_keys_free(data);
 	return (-1);
@@ -100,13 +105,17 @@ void
 cmd_send_keys_exec(void *ptr, struct cmd_ctx *ctx)
 {
 	struct cmd_send_keys_data	*data = ptr;
+	struct client			*c;
 	u_int				 i;

 	if (data == NULL)
 		return;

+	if ((c = cmd_find_client(ctx, data->cname)) == NULL)
+		return;
+
 	for (i = 0; i < data->nkeys; i++)
-		window_key(ctx->client->session->curw->window, data->keys[i]);
+		window_key(c->session->curw->window, data->keys[i]);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
@@ -118,6 +127,7 @@ cmd_send_keys_send(void *ptr, struct buffer *b)
 	struct cmd_send_keys_data	*data = ptr;

 	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->cname);
 	buffer_write(b, data->keys, data->nkeys * sizeof *data->keys);
 }

@@ -128,6 +138,7 @@ cmd_send_keys_recv(void **ptr, struct buffer *b)

 	*ptr = data = xmalloc(sizeof *data);
 	buffer_read(b, data, sizeof *data);
+	data->cname = cmd_recv_string(b);
 	data->keys = xcalloc(data->nkeys, sizeof *data->keys);
 	buffer_read(b, data->keys, data->nkeys * sizeof *data->keys);
 }
@@ -137,6 +148,8 @@ cmd_send_keys_free(void *ptr)
 {
 	struct cmd_send_keys_data	*data = ptr;

+	if (data->cname != NULL)
+		xfree(data->cname);
 	if (data->keys != NULL)
 		xfree(data->keys);
 	xfree(data);
--- a/cmd-send-prefix.c
+++ b/cmd-send-prefix.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-send-prefix.c,v 1.7 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-send-prefix.c,v 1.8 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -30,19 +30,25 @@
 void	cmd_send_prefix_exec(void *, struct cmd_ctx *);

 const struct cmd_entry cmd_send_prefix_entry = {
-	"send-prefix", NULL, NULL,
+	"send-prefix", NULL,
+	CMD_CLIENTONLY_USAGE,
 	0,
-	NULL,
+	cmd_clientonly_parse,
 	cmd_send_prefix_exec,
-	NULL,
-	NULL,
-	NULL
+	cmd_clientonly_send,
+	cmd_clientonly_recv,
+	cmd_clientonly_free
 };

 void
-cmd_send_prefix_exec(unused void *ptr, struct cmd_ctx *ctx)
+cmd_send_prefix_exec(void *ptr, struct cmd_ctx *ctx)
 {
-	window_key(ctx->client->session->curw->window, prefix_key);
+	struct client	*c;
+
+	if ((c = cmd_clientonly_get(ptr, ctx)) == NULL)
+		return;
+
+	window_key(c->session->curw->window, prefix_key);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
--- a/cmd-set-option.c
+++ b/cmd-set-option.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-set-option.c,v 1.15 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-set-option.c,v 1.16 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -28,7 +28,7 @@
 * Set an option.
 */

-int	cmd_set_option_parse(void **, int, char **, char **);
+int	cmd_set_option_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_set_option_exec(void *, struct cmd_ctx *);
 void	cmd_set_option_send(void *, struct buffer *);
 void	cmd_set_option_recv(void **, struct buffer *);
@@ -40,8 +40,9 @@ struct cmd_set_option_data {
 };

 const struct cmd_entry cmd_set_option_entry = {
-	"set-option", "set", "option value",
-	CMD_NOCLIENT|CMD_NOSESSION,
+	"set-option", "set",
+	"option value",
+	0,
 	cmd_set_option_parse,
 	cmd_set_option_exec,
 	cmd_set_option_send,
@@ -50,7 +51,8 @@ const struct cmd_entry cmd_set_option_entry = {
 };

 int
-cmd_set_option_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_set_option_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_set_option_data	*data;
 	int				 opt;
@@ -77,8 +79,7 @@ cmd_set_option_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_set_option_entry.name, cmd_set_option_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 	cmd_set_option_free(data);
 	return (-1);
--- a/cmd-swap-window.c
+++ b/cmd-swap-window.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-swap-window.c,v 1.4 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-swap-window.c,v 1.5 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -27,13 +27,14 @@
 * Swap one window with another.
 */

-int	cmd_swap_window_parse(void **, int, char **, char **);
+int	cmd_swap_window_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_swap_window_exec(void *, struct cmd_ctx *);
 void	cmd_swap_window_send(void *, struct buffer *);
 void	cmd_swap_window_recv(void **, struct buffer *);
 void	cmd_swap_window_free(void *);

 struct cmd_swap_window_data {
+	char	*sname;
 	int	 dstidx;
 	int	 srcidx;
 	char	*srcname;
@@ -41,8 +42,9 @@ struct cmd_swap_window_data {
 };

 const struct cmd_entry cmd_swap_window_entry = {
-	"swap-window", "swapw", "[-i index] name index",
-	CMD_NOCLIENT,
+	"swap-window", "swapw",
+	"[-i index] [-s session-name] session-name index",
+	0,
 	cmd_swap_window_parse,
 	cmd_swap_window_exec,
 	cmd_swap_window_send,
@@ -51,20 +53,25 @@ const struct cmd_entry cmd_swap_window_entry = {
 };

 int
-cmd_swap_window_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_swap_window_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_swap_window_data	*data;
 	const char			*errstr;
 	int				 opt;

 	*ptr = data = xmalloc(sizeof *data);
+	data->sname = NULL;
 	data->flag_detached = 0;
 	data->dstidx = -1;
 	data->srcidx = -1;
 	data->srcname = NULL;

-	while ((opt = getopt(argc, argv, "di:")) != EOF) {
+	while ((opt = getopt(argc, argv, "di:s:")) != EOF) {
 		switch (opt) {
+		case 'd':
+			data->flag_detached = 1;
+			break;
 		case 'i':
 			data->dstidx = strtonum(optarg, 0, INT_MAX, &errstr);
 			if (errstr != NULL) {
@@ -72,8 +79,8 @@ cmd_swap_window_parse(void **ptr, int argc, char **argv, char **cause)
 				goto error;
 			}
 			break;
-		case 'd':
-			data->flag_detached = 1;
+		case 's':
+			data->sname = xstrdup(optarg);
 			break;
 		default:
 			goto usage;
@@ -94,8 +101,7 @@ cmd_swap_window_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_swap_window_entry.name, cmd_swap_window_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 error:
 	cmd_swap_window_free(data);
@@ -106,13 +112,16 @@ void
 cmd_swap_window_exec(void *ptr, struct cmd_ctx *ctx)
 {
 	struct cmd_swap_window_data	*data = ptr;
-	struct session			*dst = ctx->session, *src;
+	struct session			*s, *src;
 	struct winlink			*srcwl, *dstwl;
 	struct window			*w;

 	if (data == NULL)
 		return;

+	if ((s = cmd_find_session(ctx, data->sname)) == NULL)
+		return;
+
 	if ((src = session_find(data->srcname)) == NULL) {
 		ctx->error(ctx, "session not found: %s", data->srcname);
 		return;
@@ -133,9 +142,9 @@ cmd_swap_window_exec(void *ptr, struct cmd_ctx *ctx)
 	if (data->dstidx < 0)
 		data->dstidx = -1;
 	if (data->dstidx == -1)
-		dstwl = dst->curw;
+		dstwl = s->curw;
 	else {
-		dstwl = winlink_find_by_index(&dst->windows, data->dstidx);
+		dstwl = winlink_find_by_index(&s->windows, data->dstidx);
 		if (dstwl == NULL) {
 			ctx->error(ctx, "no window %d", data->dstidx);
 			return;
@@ -147,13 +156,13 @@ cmd_swap_window_exec(void *ptr, struct cmd_ctx *ctx)
 	srcwl->window = w;

 	if (!data->flag_detached) {
-		session_select(dst, dstwl->idx);
-		if (src != dst)
+		session_select(s, dstwl->idx);
+		if (src != s)
 			session_select(src, srcwl->idx);
 	}
 	server_redraw_session(src);
-	if (src != dst)
-		server_redraw_session(dst);
+	if (src != s)
+		server_redraw_session(s);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
@@ -165,6 +174,7 @@ cmd_swap_window_send(void *ptr, struct buffer *b)
 	struct cmd_swap_window_data	*data = ptr;

 	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->sname);
 	cmd_send_string(b, data->srcname);
 }

@@ -175,6 +185,7 @@ cmd_swap_window_recv(void **ptr, struct buffer *b)

 	*ptr = data = xmalloc(sizeof *data);
 	buffer_read(b, data, sizeof *data);
+	data->sname = cmd_recv_string(b);
 	data->srcname = cmd_recv_string(b);
 }

@@ -183,6 +194,8 @@ cmd_swap_window_free(void *ptr)
 {
 	struct cmd_swap_window_data	*data = ptr;

+	if (data->sname != NULL)
+		xfree(data->sname);
 	if (data->srcname != NULL)
 		xfree(data->srcname);
 	xfree(data);
--- a/cmd-switch-client.c
+++ b/cmd-switch-client.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-switch-client.c,v 1.2 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-switch-client.c,v 1.3 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -28,19 +28,21 @@
 * Switch client to a different session.
 */

-int	cmd_switch_client_parse(void **, int, char **, char **);
+int	cmd_switch_client_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_switch_client_exec(void *, struct cmd_ctx *);
 void	cmd_switch_client_send(void *, struct buffer *);
 void	cmd_switch_client_recv(void **, struct buffer *);
 void	cmd_switch_client_free(void *);

 struct cmd_switch_client_data {
+	char	*cname;
 	char	*name;
 };

 const struct cmd_entry cmd_switch_client_entry = {
-	"switch-client", "switchc", "session-name",
-	CMD_NOSESSION,
+	"switch-client", "switchc",
+	"session-name",
+	0,
 	cmd_switch_client_parse,
 	cmd_switch_client_exec,
 	cmd_switch_client_send,
@@ -49,16 +51,21 @@ const struct cmd_entry cmd_switch_client_entry = {
 };

 int
-cmd_switch_client_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_switch_client_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_switch_client_data	*data;
 	int				 opt;

 	*ptr = data = xmalloc(sizeof *data);
+	data->cname = NULL;
 	data->name = NULL;

-	while ((opt = getopt(argc, argv, "")) != EOF) {
+	while ((opt = getopt(argc, argv, "c:")) != EOF) {
 		switch (opt) {
+		case 'c':
+			data->cname = xstrdup(optarg);
+			break;
 		default:
 			goto usage;
 		}
@@ -73,8 +80,7 @@ cmd_switch_client_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_switch_client_entry.name, cmd_switch_client_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 	cmd_switch_client_free(data);
 	return (-1);
@@ -84,20 +90,23 @@ void
 cmd_switch_client_exec(void *ptr, struct cmd_ctx *ctx)
 {
 	struct cmd_switch_client_data	*data = ptr;
+	struct client			*c;
 	struct session			*s;

 	if (data == NULL)
 		return;

+	if ((c = cmd_find_client(ctx, data->cname)) == NULL)
+		return;
+
 	if ((s = session_find(data->name)) == NULL) {
 		ctx->error(ctx, "session not found: %s", data->name);
 		return;
 	}
-
-	ctx->client->session = s;
+	c->session = s;

 	recalculate_sizes();
-	server_redraw_client(ctx->client);
+	server_redraw_client(c);

 	if (ctx->cmdclient != NULL)
 		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
@@ -109,6 +118,7 @@ cmd_switch_client_send(void *ptr, struct buffer *b)
 	struct cmd_switch_client_data	*data = ptr;

 	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->cname);
 	cmd_send_string(b, data->name);
 }

@@ -119,6 +129,7 @@ cmd_switch_client_recv(void **ptr, struct buffer *b)

 	*ptr = data = xmalloc(sizeof *data);
 	buffer_read(b, data, sizeof *data);
+	data->cname = cmd_recv_string(b);
 	data->name = cmd_recv_string(b);
 }

@@ -127,6 +138,8 @@ cmd_switch_client_free(void *ptr)
 {
 	struct cmd_switch_client_data	*data = ptr;

+	if (data->cname != NULL)
+		xfree(data->cname);
 	if (data->name != NULL)
 		xfree(data->name);
 	xfree(data);
--- a/cmd-unbind-key.c
+++ b/cmd-unbind-key.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-unbind-key.c,v 1.8 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-unbind-key.c,v 1.9 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -26,7 +26,7 @@
 * Unbind key from command.
 */

-int	cmd_unbind_key_parse(void **, int, char **, char **);
+int	cmd_unbind_key_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_unbind_key_exec(void *, struct cmd_ctx *);
 void	cmd_unbind_key_send(void *, struct buffer *);
 void	cmd_unbind_key_recv(void **, struct buffer *);
@@ -37,8 +37,9 @@ struct cmd_unbind_key_data {
 };

 const struct cmd_entry cmd_unbind_key_entry = {
-	"unbind-key", "unbind", "key",
-	CMD_NOCLIENT|CMD_NOSESSION,
+	"unbind-key", "unbind",
+	"key",
+	0,
 	cmd_unbind_key_parse,
 	cmd_unbind_key_exec,
 	cmd_unbind_key_send,
@@ -47,7 +48,8 @@ const struct cmd_entry cmd_unbind_key_entry = {
 };

 int
-cmd_unbind_key_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_unbind_key_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_unbind_key_data	*data;
 	int				 opt;
@@ -73,8 +75,7 @@ cmd_unbind_key_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_unbind_key_entry.name, cmd_unbind_key_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 error:
 	xfree(data);
--- a/cmd-unlink-window.c
+++ b/cmd-unlink-window.c
@@ -1,4 +1,4 @@
-/* $Id: cmd-unlink-window.c,v 1.5 2007-12-06 09:46:22 nicm Exp $ */
+/* $Id: cmd-unlink-window.c,v 1.6 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -27,19 +27,21 @@
 * Unlink a window, unless it would be destroyed by doing so (only one link).
 */

-int	cmd_unlink_window_parse(void **, int, char **, char **);
+int	cmd_unlink_window_parse(struct cmd *, void **, int, char **, char **);
 void	cmd_unlink_window_exec(void *, struct cmd_ctx *);
 void	cmd_unlink_window_send(void *, struct buffer *);
 void	cmd_unlink_window_recv(void **, struct buffer *);
 void	cmd_unlink_window_free(void *);

 struct cmd_unlink_window_data {
-	int	idx;
+	char	*sname;
+	int	 idx;
 };

 const struct cmd_entry cmd_unlink_window_entry = {
-	"unlink-window", "unlinkw", "[-i index]",
-	CMD_NOCLIENT,
+	"unlink-window", "unlinkw",
+	"[-i index] [-s session-name]",
+	0,
 	cmd_unlink_window_parse,
 	cmd_unlink_window_exec,
 	cmd_unlink_window_send,
@@ -48,16 +50,18 @@ const struct cmd_entry cmd_unlink_window_entry = {
 };

 int
-cmd_unlink_window_parse(void **ptr, int argc, char **argv, char **cause)
+cmd_unlink_window_parse(
+    struct cmd *self, void **ptr, int argc, char **argv, char **cause)
 {
 	struct cmd_unlink_window_data	*data;
 	const char			*errstr;
 	int				 opt;

 	*ptr = data = xmalloc(sizeof *data);
+	data->sname = NULL;
 	data->idx = -1;

-	while ((opt = getopt(argc, argv, "i:")) != EOF) {
+	while ((opt = getopt(argc, argv, "i:s:")) != EOF) {
 		switch (opt) {
 		case 'i':
 			data->idx = strtonum(optarg, 0, INT_MAX, &errstr);
@@ -66,6 +70,9 @@ cmd_unlink_window_parse(void **ptr, int argc, char **argv, char **cause)
 				goto error;
 			}
 			break;
+		case 's':
+			data->sname = xstrdup(optarg);
+			break;
 		default:
 			goto usage;
 		}
@@ -78,8 +85,7 @@ cmd_unlink_window_parse(void **ptr, int argc, char **argv, char **cause)
 	return (0);

 usage:
-	usage(cause, "%s %s",
-	    cmd_unlink_window_entry.name, cmd_unlink_window_entry.usage);
+	usage(cause, "%s %s", self->entry->name, self->entry->usage);

 error:
 	cmd_unlink_window_free(data);
@@ -90,8 +96,8 @@ void
 cmd_unlink_window_exec(void *ptr, struct cmd_ctx *ctx)
 {
 	struct cmd_unlink_window_data	*data = ptr;
+	struct session			*s;
 	struct client			*c;
-	struct winlinks			*wwl = &ctx->session->windows;
 	struct winlink			*wl;
 	u_int		 		 i;
 	int		 		 destroyed;
@@ -99,12 +105,15 @@ cmd_unlink_window_exec(void *ptr, struct cmd_ctx *ctx)
 	if (data == NULL)
 		return;

+	if ((s = cmd_find_session(ctx, data->sname)) == NULL)
+		return;
+
 	if (data->idx < 0)
 		data->idx = -1;
 	if (data->idx == -1)
-		wl = ctx->session->curw;
+		wl = s->curw;
 	else {
-		wl = winlink_find_by_index(wwl, data->idx);
+		wl = winlink_find_by_index(&s->windows, data->idx);
 		if (wl == NULL) {
 			ctx->error(ctx, "no window %d", data->idx);
 			return;
@@ -116,10 +125,10 @@ cmd_unlink_window_exec(void *ptr, struct cmd_ctx *ctx)
 		return;
 	}

- 	destroyed = session_detach(ctx->session, wl);
+ 	destroyed = session_detach(s, wl);
 	for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 		c = ARRAY_ITEM(&clients, i);
-		if (c == NULL || c->session != ctx->session)
+		if (c == NULL || c->session != s)
 			continue;
 		if (destroyed) {
 			c->session = NULL;
@@ -138,6 +147,7 @@ cmd_unlink_window_send(void *ptr, struct buffer *b)
 	struct cmd_unlink_window_data	*data = ptr;

 	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->sname);
 }

 void
@@ -154,5 +164,7 @@ cmd_unlink_window_free(void *ptr)
 {
 	struct cmd_unlink_window_data	*data = ptr;

+	if (data->sname != NULL)
+		xfree(data->sname);
 	xfree(data);
 }
--- a/cmd.c
+++ b/cmd.c
@@ -1,4 +1,4 @@
-/* $Id: cmd.c,v 1.34 2008-06-01 20:20:25 nicm Exp $ */
+/* $Id: cmd.c,v 1.35 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -20,6 +20,7 @@

 #include <getopt.h>
 #include <string.h>
+#include <unistd.h>

 #include "tmux.h"

@@ -105,7 +106,7 @@ cmd_parse(int argc, char **argv, char **cause)
 	cmd = xmalloc(sizeof *cmd);
 	cmd->entry = entry;
 	if (entry->parse != NULL) {
-		if (entry->parse(&cmd->data, argc, argv, cause) != 0) {
+		if (entry->parse(cmd, &cmd->data, argc, argv, cause) != 0) {
 			xfree(cmd);
 			return (NULL);
 		}
@@ -226,3 +227,89 @@ cmd_recv_string(struct buffer *b)

 	return (s);
 }
+
+/*
+ * Attempt to establish session. This looks first at the command-line argument
+ * if any, then sees if there is a session in the context, then finally tries
+ * the session data passed up from the client $TMUX variable.
+ */
+struct session *
+cmd_find_session(struct cmd_ctx *ctx, const char *arg)
+{
+	struct session		*s;
+	struct msg_command_data	*data = ctx->msgdata;
+	u_int			 i, n;
+
+	if (arg != NULL) {
+		if ((s = session_find(arg)) == NULL) {
+			ctx->error(ctx, "session not found: %s", arg);
+			return (NULL);
+		}
+		return (s);
+	}
+
+	if (ctx->cursession != NULL)
+		return (ctx->cursession);
+
+	if (data != NULL && data->pid != -1) {
+		if (data->pid != getpid()) {
+			ctx->error(ctx, "wrong server: %lld", data->pid);
+			return (NULL);
+		}
+		if (data->idx > ARRAY_LENGTH(&sessions)) {
+			ctx->error(ctx, "index out of range: %d", data->idx);
+			return (NULL);
+		}
+		if ((s = ARRAY_ITEM(&sessions, data->idx)) == NULL) {
+			ctx->error(ctx, "session doesn't exist: %u", data->idx);
+			return (NULL);
+		}
+		return (s);
+	}
+
+	s = NULL;
+	n = 0;
+	for (i = 0; i < ARRAY_LENGTH(&sessions); i++) {
+		if (ARRAY_ITEM(&sessions, i) != NULL) {
+			s = ARRAY_ITEM(&sessions, i);
+			n++;
+		}
+	}
+	if (s == NULL) {
+		ctx->error(ctx, "no sessions found");
+		return (NULL);
+	}
+	if (n != 1) {
+		ctx->error(ctx, "multiple sessions and session not specified");
+		return (NULL);
+	}
+	return (s);
+}
+
+/* 
+ * Figure out the client. Try the current client (if any) first, then try to
+ * figure it out from the argument.
+ */
+struct client *
+cmd_find_client(unused struct cmd_ctx *ctx, const char *arg)
+{
+	struct client	*c;
+	u_int		 i;
+
+	if (ctx->curclient != NULL)
+		return (ctx->curclient);
+
+	if (arg == NULL) {
+		ctx->error(ctx, "must specify a client");
+		return (NULL);
+	}
+
+	for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
+		c = ARRAY_ITEM(&clients, i);
+		if (c != NULL && strcmp(arg, c->tty.path) == 0)
+			return (c);
+	}
+	
+	ctx->error(ctx, "client not found: %s", arg);
+	return (NULL);
+}
--- a/key-bindings.c
+++ b/key-bindings.c
@@ -1,4 +1,4 @@
-/* $Id: key-bindings.c,v 1.25 2007-12-06 21:42:00 nicm Exp $ */
+/* $Id: key-bindings.c,v 1.26 2008-06-02 18:08:16 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -155,14 +155,14 @@ key_bindings_error(struct cmd_ctx *ctx, const char *fmt, ...)
 	va_end(ap);

 	*msg = toupper((u_char) *msg);
-	server_write_message(ctx->client, "%s", msg);
+	server_write_message(ctx->curclient, "%s", msg);
 	xfree(msg);
 }

 void printflike2
 key_bindings_print(struct cmd_ctx *ctx, const char *fmt, ...)
 {
-	struct window	*w = ctx->session->curw->window;
+	struct window	*w = ctx->cursession->curw->window;
 	va_list		 ap;

 	window_set_mode(w, &window_more_mode);
@@ -188,8 +188,8 @@ key_bindings_dispatch(int key, struct client *c)
 	if (i == ARRAY_LENGTH(&key_bindings))
 		return;

-	ctx.session = c->session;
-	ctx.client = c;
+	ctx.cursession = c->session;
+	ctx.curclient = c;

 	ctx.error = key_bindings_error;
 	ctx.print = key_bindings_print;
--- a/server-fn.c
+++ b/server-fn.c
@@ -1,4 +1,4 @@
-/* $Id: server-fn.c,v 1.36 2007-12-06 09:46:23 nicm Exp $ */
+/* $Id: server-fn.c,v 1.37 2008-06-02 18:08:17 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -23,57 +23,6 @@

 #include "tmux.h"

-/* Find session from command message. */
-struct session *
-server_extract_session(struct msg_command_data *data, char *name, char **cause)
-{
-	struct session *s;
-	u_int		i, n;
-
-	if (name != NULL) {
-		if ((s = session_find(name)) == NULL) {
-			xasprintf(cause, "session not found: %s", name);
-			return (NULL);
-		}
-		return (s);
-	}
-
-	if (data->pid != -1) {
-		if (data->pid != getpid()) {
-			xasprintf(cause, "wrong server: %lld", data->pid);
-			return (NULL);
-		}
-		if (data->idx > ARRAY_LENGTH(&sessions)) {
-			xasprintf(cause, "index out of range: %d", data->idx);
-			return (NULL);
-		}
-		if ((s = ARRAY_ITEM(&sessions, data->idx)) == NULL) {
-			xasprintf(
-			    cause, "session doesn't exist: %u", data->idx);
-			return (NULL);
-		}
-		return (s);
-	}
-
-	s = NULL;
-	n = 0;
-	for (i = 0; i < ARRAY_LENGTH(&sessions); i++) {
-		if (ARRAY_ITEM(&sessions, i) != NULL) {
-			s = ARRAY_ITEM(&sessions, i);
-			n++;
-		}
-	}
-	if (s == NULL) {
-		xasprintf(cause, "no sessions found");
-		return (NULL);
-	}
-	if (n != 1) {
-		xasprintf(cause, "multiple sessions and session not specified");
-		return (NULL);
-	}
-	return (s);
-}
-
 void
 server_write_client(
    struct client *c, enum hdrtype type, const void *buf, size_t len)
--- a/server-msg.c
+++ b/server-msg.c
@@ -1,4 +1,4 @@
-/* $Id: server-msg.c,v 1.43 2007-12-13 18:59:42 nicm Exp $ */
+/* $Id: server-msg.c,v 1.44 2008-06-02 18:08:17 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -111,16 +111,10 @@ server_msg_fn_command(struct hdr *hdr, struct client *c)
 	struct msg_command_data	data;
 	struct cmd_ctx	 	ctx;
 	struct cmd	       *cmd;
-	char	       	       *name, *client, *cause;
-	u_int			i;
-
-	/* XXX I hate this function. Split it? */

 	if (hdr->size < sizeof data)
 		fatalx("bad MSG_COMMAND size");
 	buffer_read(c->in, &data, sizeof data);
-	name = cmd_recv_string(c->in);
-	client = cmd_recv_string(c->in);

 	cmd = cmd_recv(c->in);
 	log_debug("got command %s from client %d", cmd->entry->name, c->fd);
@@ -128,64 +122,23 @@ server_msg_fn_command(struct hdr *hdr, struct client *c)
 	ctx.error = server_msg_fn_command_error;
 	ctx.print = server_msg_fn_command_print;

+	ctx.curclient = NULL;
+	ctx.cursession = NULL;
+	ctx.msgdata = &data;
+
 	ctx.cmdclient = c;
 	ctx.flags = 0;

+	/* XXX */
 	if (data.pid != -1 && (cmd->entry->flags & CMD_CANTNEST)) {
 		server_msg_fn_command_error(&ctx, "sessions "
 		    "should be nested with care. unset $TMUX to force");
-		goto out;
-	}
-
-	ctx.client = NULL;
-	if (cmd->entry->flags & CMD_NOCLIENT) {
-		if (client != NULL) {
-			server_msg_fn_command_error(&ctx,
-			    "%s: cannot specify a client", cmd->entry->name);
-			goto out;
-		}
-	} else {
-		if (client == NULL) {
-			server_msg_fn_command_error(&ctx,
-			    "%s: must specify a client", cmd->entry->name);
-			goto out;
-		}
-		for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
-			/* XXX fnmatch, multi clients etc */
-			c = ARRAY_ITEM(&clients, i);
-			if (c != NULL && strcmp(client, c->tty.path) == 0)
-				ctx.client = c;
-		}
-		if (ctx.client == NULL) {
-			server_msg_fn_command_error(&ctx, "%s: "
-			    "client not found: %s", cmd->entry->name, client);
-			goto out;
-		}
-	}
-
-	ctx.session = NULL;
-	if (cmd->entry->flags & CMD_NOSESSION) {
-		if (name != NULL) {
-			server_msg_fn_command_error(&ctx,
-			    "%s: cannot specify a session", cmd->entry->name);
-			goto out;
-		}
-	} else {
-		ctx.session = server_extract_session(&data, name, &cause);
-		if (ctx.session == NULL) {
-			server_msg_fn_command_error(
-			    &ctx, "%s: %s", cmd->entry->name, cause);
-			xfree(cause);
-			goto out;
-		}
+		cmd_free(cmd);
+		return (0);
 	}

 	cmd_exec(cmd, &ctx);
 	cmd_free(cmd);
-
-out:
-	if (name != NULL)
-		xfree(name);
 	return (0);
 }

--- a/server.c
+++ b/server.c
@@ -1,4 +1,4 @@
-/* $Id: server.c,v 1.45 2008-05-31 20:04:15 nicm Exp $ */
+/* $Id: server.c,v 1.46 2008-06-02 18:08:17 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -62,6 +62,7 @@ server_start(const char *path)
 	size_t			size;
 	mode_t			mask;
 	int		   	n, fd, mode;
+	char		       *cause;

 	switch (fork()) {
 	case -1:
@@ -109,6 +110,13 @@ server_start(const char *path)
 	if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
 		fatal("fcntl failed");

+ 	/* Load configuration. */
+	if (cfg_file != NULL && load_cfg(cfg_file, &cause) != 0) {
+		log_warnx("%s", cause);
+		xfree(cause);
+		exit(1);
+	}
+
 	if (daemon(1, 1) != 0)
 		fatal("daemon failed");
 	log_debug("server daemonised, pid now %ld", (long) getpid());
@@ -135,7 +143,7 @@ server_main(const char *srv_path, int srv_fd)
 	ARRAY_INIT(&sessions);

 	key_bindings_init();
-
+ 
 	pfds = NULL;
 	while (!sigterm) {
 		/* Initialise pollfd array. */
--- a/tmux.c
+++ b/tmux.c
@@ -1,4 +1,4 @@
-/* $Id: tmux.c,v 1.46 2007-12-06 18:28:55 nicm Exp $ */
+/* $Id: tmux.c,v 1.47 2008-06-02 18:08:17 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -42,6 +42,7 @@ const char	*_malloc_options = "AJX";

 volatile sig_atomic_t sigwinch;
 volatile sig_atomic_t sigterm;
+char		*cfg_file;
 char		*default_command;
 char		*paste_buffer;
 int		 bell_action;
@@ -59,8 +60,7 @@ usage(char **ptr, const char *fmt, ...)
 	char	*msg;
 	va_list	 ap;

-#define USAGE \
-	"usage: %s [-v] [-S socket-path] [-s session-name] [-c client-tty]"
+#define USAGE "usage: %s [-v] [-f file] [-S socket-path]"
 	if (fmt == NULL) {
 		xasprintf(ptr, USAGE " command [flags]", __progname);
 	} else {
@@ -182,22 +182,19 @@ main(int argc, char **argv)
 	struct hdr	 	 hdr;
 	const char		*shell;
 	struct passwd		*pw;
-	char			*client, *path, *name, *cause;
+	char			*client, *path, *name, *cause, *home;
 	char			 rpath[MAXPATHLEN];
 	int	 		 n, opt;

 	client = path = name = NULL;
-        while ((opt = getopt(argc, argv, "c:S:s:vV")) != EOF) {
+        while ((opt = getopt(argc, argv, "c:f:S:s:vV")) != EOF) {
                switch (opt) {
-		case 'c':
-			client = xstrdup(optarg);
+		case 'f':
+			cfg_file = xstrdup(optarg);
 			break;
 		case 'S':
 			path = xstrdup(optarg);
 			break;
-		case 's':
-			name = xstrdup(optarg);
-			break;
 		case 'v':
 			debug_level++;
 			break;
@@ -225,6 +222,26 @@ main(int argc, char **argv)

 	paste_buffer = NULL;

+	if (cfg_file == NULL) {
+		home = getenv("HOME");
+		if (home == NULL || *home == '\0') {
+			pw = getpwuid(getuid());
+			if (pw != NULL)
+				home = pw->pw_dir;
+			endpwent();
+		}
+		xasprintf(&cfg_file, "%s/%s", home, DEFAULT_CFG);
+		if (access(cfg_file, R_OK) != 0) {
+			xfree(cfg_file);
+			cfg_file = NULL;
+		}
+	} else {
+		if (access(cfg_file, R_OK) != 0) {
+			log_warn("%s", cfg_file);
+			exit(1);
+		}		
+	}
+
 	if (path == NULL) {
 		xasprintf(&path,
 		    "%s/%s-%lu", _PATH_TMP, __progname, (u_long) getuid());
@@ -265,14 +282,10 @@ main(int argc, char **argv)
 	}

 	memset(&cctx, 0, sizeof cctx);
-	if (!(cmd->entry->flags & CMD_NOSESSION) ||
-	    (cmd->entry->flags & CMD_CANTNEST))
-		client_fill_session(&data);
+	client_fill_session(&data);
 	if (client_init(rpath, &cctx, cmd->entry->flags & CMD_STARTSERVER) != 0)
 		exit(1);
 	b = buffer_create(BUFSIZ);
-	cmd_send_string(b, name);
-	cmd_send_string(b, client);
 	cmd_send(cmd, b);
 	cmd_free(cmd);

@@ -280,9 +293,6 @@ main(int argc, char **argv)
 	    MSG_COMMAND, &data, sizeof data, BUFFER_OUT(b), BUFFER_USED(b));
 	buffer_destroy(b);

-	if (name != NULL)
-		xfree(name);
-
 	for (;;) {
 		pfd.fd = cctx.srv_fd;
 		pfd.events = POLLIN;
--- a/tmux.h
+++ b/tmux.h
@@ -1,4 +1,4 @@
-/* $Id: tmux.h,v 1.116 2008-06-01 20:20:25 nicm Exp $ */
+/* $Id: tmux.h,v 1.117 2008-06-02 18:08:17 nicm Exp $ */

 /*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -63,6 +63,9 @@ extern char    *__progname;
 #define TTY_NAME_MAX 32
 #endif

+/* Default configuration file. */
+#define DEFAULT_CFG ".tmux.conf"
+
 /* Fatal errors. */
 #define fatal(msg) log_fatal("%s: %s", __func__, msg);
 #define fatalx(msg) log_fatalx("%s: %s", __func__, msg);
@@ -621,8 +624,9 @@ struct client_ctx {
 struct cmd_ctx {
 	struct client  *cmdclient;

-	struct client  *client;
-	struct session *session;
+	struct client  *curclient;
+	struct session *cursession;
+	struct msg_command_data	*msgdata;

 	void		(*print)(struct cmd_ctx *, const char *, ...);
 	void		(*error)(struct cmd_ctx *, const char *, ...);
@@ -631,29 +635,27 @@ struct cmd_ctx {
 	int		flags;
 };

+struct cmd {
+	const struct cmd_entry *entry;
+	void	       	*data;
+};
+
 struct cmd_entry {
 	const char	*name;
 	const char	*alias;
 	const char	*usage;

 #define CMD_STARTSERVER 0x1
-#define CMD_NOSESSION 0x2
-#define CMD_NOCLIENT 0x4
-#define CMD_CANTNEST 0x8
+#define CMD_CANTNEST 0x2
 	int		 flags;

-	int		 (*parse)(void **, int, char **, char **);
+	int		 (*parse)(struct cmd *, void **, int, char **, char **);
 	void		 (*exec)(void *, struct cmd_ctx *);
 	void		 (*send)(void *, struct buffer *);
 	void	         (*recv)(void **, struct buffer *);
 	void		 (*free)(void *);
 };

-struct cmd {
-	const struct cmd_entry *entry;
-	void	       	*data;
-};
-
 /* Key binding. */
 struct binding {
 	int		 key;
@@ -683,6 +685,7 @@ extern volatile sig_atomic_t sigterm;
 #define BELL_ANY 1
 #define BELL_CURRENT 2
 extern char	*default_command;
+extern char	*cfg_file;
 extern char	*paste_buffer;
 extern int	 bell_action;
 extern int	 debug_level;
@@ -695,6 +698,9 @@ void		 logfile(const char *);
 void		 siginit(void);
 void		 sigreset(void);

+/* cfg.c */
+int		 load_cfg(const char *, char **x);
+
 /* tty.c */
 void		 tty_init(struct tty *, char *, char *);
 int		 tty_open(struct tty *, char **);
@@ -725,6 +731,8 @@ struct cmd	*cmd_recv(struct buffer *);
 void		 cmd_free(struct cmd *);
 void		 cmd_send_string(struct buffer *, const char *);
 char		*cmd_recv_string(struct buffer *);
+struct session	*cmd_find_session(struct cmd_ctx *, const char *);
+struct client	*cmd_find_client(struct cmd_ctx *, const char *);
 extern const struct cmd_entry cmd_attach_session_entry;
 extern const struct cmd_entry cmd_bind_key_entry;
 extern const struct cmd_entry cmd_copy_mode_entry;
@@ -757,6 +765,22 @@ extern const struct cmd_entry cmd_unbind_key_entry;
 extern const struct cmd_entry cmd_unlink_window_entry;
 void	cmd_select_window_default(void **, int);

+/* cmd-generic.c */
+#define CMD_CLIENTONLY_USAGE "[-c client-name]"
+int	cmd_clientonly_parse(struct cmd *, void **, int, char **, char **);
+void	cmd_clientonly_exec(void *, struct cmd_ctx *);
+void	cmd_clientonly_send(void *, struct buffer *);
+void	cmd_clientonly_recv(void **, struct buffer *);
+void	cmd_clientonly_free(void *);
+struct client *cmd_clientonly_get(void *, struct cmd_ctx *);
+#define CMD_SESSIONONLY_USAGE "[-s session-name]"
+int	cmd_sessiononly_parse(struct cmd *, void **, int, char **, char **);
+void	cmd_sessiononly_exec(void *, struct cmd_ctx *);
+void	cmd_sessiononly_send(void *, struct buffer *);
+void	cmd_sessiononly_recv(void **, struct buffer *);
+void	cmd_sessiononly_free(void *);
+struct session *cmd_sessiononly_get(void *, struct cmd_ctx *);
+
 /* client.c */
 int	 client_init(const char *, struct client_ctx *, int);
 int	 client_flush(struct client_ctx *);