Annotation of src/usr.bin/tmux/cmd-switch-client.c, Revision 1.2
1.2 ! nicm 1: /* $OpenBSD: cmd-switch-client.c,v 1.1 2009/06/01 22:58:49 nicm Exp $ */
1.1 nicm 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:
24: #include "tmux.h"
25:
26: /*
27: * Switch client to a different session.
28: */
29:
30: int cmd_switch_client_parse(struct cmd *, int, char **, char **);
31: int cmd_switch_client_exec(struct cmd *, struct cmd_ctx *);
32: void cmd_switch_client_send(struct cmd *, struct buffer *);
33: void cmd_switch_client_recv(struct cmd *, struct buffer *);
34: void cmd_switch_client_free(struct cmd *);
35: size_t cmd_switch_client_print(struct cmd *, char *, size_t);
36:
37: struct cmd_switch_client_data {
38: char *name;
39: char *target;
40: };
41:
42: const struct cmd_entry cmd_switch_client_entry = {
43: "switch-client", "switchc",
44: "[-c target-client] [-t target-session]",
1.2 ! nicm 45: 0, 0,
1.1 nicm 46: NULL,
47: cmd_switch_client_parse,
48: cmd_switch_client_exec,
49: cmd_switch_client_send,
50: cmd_switch_client_recv,
51: cmd_switch_client_free,
52: cmd_switch_client_print
53: };
54:
55: int
56: cmd_switch_client_parse(struct cmd *self, int argc, char **argv, char **cause)
57: {
58: struct cmd_switch_client_data *data;
59: int opt;
60:
61: self->data = data = xmalloc(sizeof *data);
62: data->name = NULL;
63: data->target = NULL;
64:
65: while ((opt = getopt(argc, argv, "c:t:")) != -1) {
66: switch (opt) {
67: case 'c':
68: data->name = xstrdup(optarg);
69: break;
70: case 't':
71: data->target = xstrdup(optarg);
72: break;
73: default:
74: goto usage;
75: }
76: }
77: argc -= optind;
78: argv += optind;
79: if (argc != 0)
80: goto usage;
81:
82: return (0);
83:
84: usage:
85: xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
86:
87: self->entry->free(self);
88: return (-1);
89: }
90:
91: int
92: cmd_switch_client_exec(struct cmd *self, struct cmd_ctx *ctx)
93: {
94: struct cmd_switch_client_data *data = self->data;
95: struct client *c;
96: struct session *s;
97:
98: if (data == NULL)
99: return (0);
100:
101: if ((c = cmd_find_client(ctx, data->name)) == NULL)
102: return (-1);
103: if ((s = cmd_find_session(ctx, data->target)) == NULL)
104: return (-1);
105:
106: c->session = s;
107:
108: recalculate_sizes();
109: server_redraw_client(c);
110:
111: return (0);
112: }
113:
114: void
115: cmd_switch_client_send(struct cmd *self, struct buffer *b)
116: {
117: struct cmd_switch_client_data *data = self->data;
118:
119: buffer_write(b, data, sizeof *data);
120: cmd_send_string(b, data->name);
121: cmd_send_string(b, data->target);
122: }
123:
124: void
125: cmd_switch_client_recv(struct cmd *self, struct buffer *b)
126: {
127: struct cmd_switch_client_data *data;
128:
129: self->data = data = xmalloc(sizeof *data);
130: buffer_read(b, data, sizeof *data);
131: data->name = cmd_recv_string(b);
132: data->target = cmd_recv_string(b);
133: }
134:
135: void
136: cmd_switch_client_free(struct cmd *self)
137: {
138: struct cmd_switch_client_data *data = self->data;
139:
140: if (data->name != NULL)
141: xfree(data->name);
142: if (data->target != NULL)
143: xfree(data->target);
144: xfree(data);
145: }
146:
147: size_t
148: cmd_switch_client_print(struct cmd *self, char *buf, size_t len)
149: {
150: struct cmd_switch_client_data *data = self->data;
151: size_t off = 0;
152:
153: off += xsnprintf(buf, len, "%s", self->entry->name);
154: if (data == NULL)
155: return (off);
156: if (off < len && data->name != NULL)
157: off += cmd_prarg(buf + off, len - off, " -c ", data->name);
158: if (off < len && data->target != NULL)
159: off += cmd_prarg(buf + off, len - off, " -t ", data->target);
160: return (off);
161: }