aboutsummaryrefslogtreecommitdiff
path: root/op-list.c
blob: 1d32c86205117800dd4e35389923d4798b26fb64 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
/* $Id: op-list.c,v 1.2 2007-09-26 18:32:16 nicm Exp $ */

/*
 * Copyright (c) 2007 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 <getopt.h>
#include <string.h>

#include "tmux.h"

int
op_list(char *path, int argc, char **argv)
{
	struct client_ctx	cctx;
	char			name[MAXNAMELEN], *tim;
	int			opt;
	struct sessions_data	sdata;
	struct sessions_entry	sent;
	struct windows_data	wdata;
	struct windows_entry	went;
	struct pollfd		pfd;
	struct hdr		hdr;

	*name = '\0';
	optind = 1;
	while ((opt = getopt(argc, argv, "n:?")) != EOF) {
		switch (opt) {
		case 'n':
			if (strlcpy(name, optarg, sizeof name) >= sizeof name) {
				log_warnx("%s: session name too long", optarg);
				return (1);
			}
			break;
		case '?':
		default:
			return (usage("list [-n session]"));
		}
	}	
	argc -= optind;
	argv += optind;			
	if (argc != 0)
		return (usage("list [-n session]"));

	if (client_init(path, &cctx, 0) != 0)
		return (1);
 
	if (*name == '\0')
		client_write_server(&cctx, MSG_SESSIONS, &sdata, sizeof sdata);
	else {
		strlcpy(wdata.name, name, sizeof wdata.name);
		client_write_server(&cctx, MSG_WINDOWS, &wdata, sizeof wdata);
	}

	for (;;) {
		pfd.fd = cctx.srv_fd;
		pfd.events = POLLIN;
		if (BUFFER_USED(cctx.srv_out) > 0)
			pfd.events |= POLLOUT;

		if (poll(&pfd, 1, INFTIM) == -1) {
			if (errno == EAGAIN || errno == EINTR)
				continue;
			log_warn("poll");
			return (-1);
		}

		if (buffer_poll(&pfd, cctx.srv_in, cctx.srv_out) != 0) {
			log_warnx("lost server");
			return (-1);
		}

		if (BUFFER_USED(cctx.srv_in) < sizeof hdr)
			continue;
		memcpy(&hdr, BUFFER_OUT(cctx.srv_in), sizeof hdr);
		if (BUFFER_USED(cctx.srv_in) < (sizeof hdr) + hdr.size)
			continue;
		buffer_remove(cctx.srv_in, sizeof hdr);
		
		switch (hdr.type) {
		case MSG_SESSIONS:
			if (hdr.size < sizeof sdata)
				fatalx("bad MSG_SESSIONS size");
			buffer_read(cctx.srv_in, &sdata, sizeof sdata);
			hdr.size -= sizeof sdata; 
			if (sdata.sessions == 0 && hdr.size == 0)
				return (0);
			if (hdr.size < sdata.sessions * sizeof sent)
				fatalx("bad MSG_SESSIONS size");
			while (sdata.sessions-- > 0) {
				buffer_read(cctx.srv_in, &sent, sizeof sent);
				tim = ctime(&sent.tim);
				*strchr(tim, '\n') = '\0';
				printf("%s: %u windows (created %s)\n",
				    sent.name, sent.windows, tim);
			}
			return (0);
		case MSG_WINDOWS:
			if (hdr.size < sizeof wdata)
				fatalx("bad MSG_WINDOWS size");
			buffer_read(cctx.srv_in, &wdata, sizeof wdata);
			hdr.size -= sizeof wdata; 
			if (wdata.windows == 0 && hdr.size == 0) {
				log_warnx("session not found: %s", name);
				return (1);
			}
			if (hdr.size < wdata.windows * sizeof went)
				fatalx("bad MSG_WINDOWS size");
			while (wdata.windows-- > 0) {
				buffer_read(cctx.srv_in, &went, sizeof went);
				if (*went.title != '\0') {
					printf("%u: %s \"%s\" (%s)\n", went.idx,
					    went.name, went.title, went.tty);
				} else {
					printf("%u: %s (%s)\n",
					    went.idx, went.name, went.tty);
				}
			}
			return (0);
		default:
			fatalx("unexpected message");
		}
	}
}