tmux/cmd-switch-client.c

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/* $OpenBSD$ */
/*
* 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 <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Switch client to a different session.
*/
int cmd_switch_client_parse(struct cmd *, int, char **, char **);
int cmd_switch_client_exec(struct cmd *, struct cmd_ctx *);
void cmd_switch_client_send(struct cmd *, struct buffer *);
void cmd_switch_client_recv(struct cmd *, struct buffer *);
void cmd_switch_client_free(struct cmd *);
size_t cmd_switch_client_print(struct cmd *, char *, size_t);
struct cmd_switch_client_data {
char *name;
char *target;
};
const struct cmd_entry cmd_switch_client_entry = {
"switch-client", "switchc",
"[-c target-client] [-t target-session]",
0, 0,
NULL,
cmd_switch_client_parse,
cmd_switch_client_exec,
cmd_switch_client_send,
cmd_switch_client_recv,
cmd_switch_client_free,
cmd_switch_client_print
};
int
cmd_switch_client_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_switch_client_data *data;
int opt;
self->data = data = xmalloc(sizeof *data);
data->name = NULL;
data->target = NULL;
while ((opt = getopt(argc, argv, "c:t:")) != -1) {
switch (opt) {
case 'c':
data->name = xstrdup(optarg);
break;
case 't':
data->target = xstrdup(optarg);
break;
default:
goto usage;
}
}
argc -= optind;
argv += optind;
if (argc != 0)
goto usage;
return (0);
usage:
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
self->entry->free(self);
return (-1);
}
int
cmd_switch_client_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct cmd_switch_client_data *data = self->data;
struct client *c;
struct session *s;
if (data == NULL)
return (0);
if ((c = cmd_find_client(ctx, data->name)) == NULL)
return (-1);
if ((s = cmd_find_session(ctx, data->target)) == NULL)
return (-1);
c->session = s;
recalculate_sizes();
server_redraw_client(c);
return (0);
}
void
cmd_switch_client_send(struct cmd *self, struct buffer *b)
{
struct cmd_switch_client_data *data = self->data;
buffer_write(b, data, sizeof *data);
cmd_send_string(b, data->name);
cmd_send_string(b, data->target);
}
void
cmd_switch_client_recv(struct cmd *self, struct buffer *b)
{
struct cmd_switch_client_data *data;
self->data = data = xmalloc(sizeof *data);
buffer_read(b, data, sizeof *data);
data->name = cmd_recv_string(b);
data->target = cmd_recv_string(b);
}
void
cmd_switch_client_free(struct cmd *self)
{
struct cmd_switch_client_data *data = self->data;
if (data->name != NULL)
xfree(data->name);
if (data->target != NULL)
xfree(data->target);
xfree(data);
}
size_t
cmd_switch_client_print(struct cmd *self, char *buf, size_t len)
{
struct cmd_switch_client_data *data = self->data;
size_t off = 0;
off += xsnprintf(buf, len, "%s", self->entry->name);
if (data == NULL)
return (off);
if (off < len && data->name != NULL)
off += cmd_prarg(buf + off, len - off, " -c ", data->name);
if (off < len && data->target != NULL)
off += cmd_prarg(buf + off, len - off, " -t ", data->target);
return (off);
}