xref: /openbsd-src/usr.bin/tmux/cmd-list-clients.c (revision ac9b4aacc1da35008afea06a5d23c2f2dea9b93e)
1 /* $OpenBSD: cmd-list-clients.c,v 1.13 2012/08/14 08:51:53 nicm Exp $ */
2 
3 /*
4  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #include <sys/types.h>
20 
21 #include <stdlib.h>
22 #include <string.h>
23 #include <time.h>
24 
25 #include "tmux.h"
26 
27 /*
28  * List all clients.
29  */
30 
31 int	cmd_list_clients_exec(struct cmd *, struct cmd_ctx *);
32 
33 const struct cmd_entry cmd_list_clients_entry = {
34 	"list-clients", "lsc",
35 	"F:t:", 0, 0,
36 	"[-F format] " CMD_TARGET_SESSION_USAGE,
37 	CMD_READONLY,
38 	NULL,
39 	NULL,
40 	cmd_list_clients_exec
41 };
42 
43 /* ARGSUSED */
44 enum cmd_retval
45 cmd_list_clients_exec(struct cmd *self, struct cmd_ctx *ctx)
46 {
47 	struct args 		*args = self->args;
48 	struct client		*c;
49 	struct session		*s;
50 	struct format_tree	*ft;
51 	const char		*template;
52 	u_int			 i;
53 	char			*line;
54 
55 	if (args_has(args, 't')) {
56 		s = cmd_find_session(ctx, args_get(args, 't'), 0);
57 		if (s == NULL)
58 			return (CMD_RETURN_ERROR);
59 	} else
60 		s = NULL;
61 
62 	if ((template = args_get(args, 'F')) == NULL)
63 		template = LIST_CLIENTS_TEMPLATE;
64 
65 	for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
66 		c = ARRAY_ITEM(&clients, i);
67 		if (c == NULL || c->session == NULL)
68 			continue;
69 
70 		if (s != NULL && s != c->session)
71 			continue;
72 
73 		ft = format_create();
74 		format_add(ft, "line", "%u", i);
75 		format_session(ft, c->session);
76 		format_client(ft, c);
77 
78 		line = format_expand(ft, template);
79 		ctx->print(ctx, "%s", line);
80 		free(line);
81 
82 		format_free(ft);
83 	}
84 
85 	return (CMD_RETURN_NORMAL);
86 }
87