mirror of https://github.com/tmux/tmux.git
121 lines
3.2 KiB
C
121 lines
3.2 KiB
C
/* $Id: client-msg.c,v 1.14 2007-12-06 09:46:21 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 <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "tmux.h"
|
|
|
|
int client_msg_fn_detach(struct hdr *, struct client_ctx *, char **);
|
|
int client_msg_fn_error(struct hdr *, struct client_ctx *, char **);
|
|
int client_msg_fn_exit(struct hdr *, struct client_ctx *, char **);
|
|
int client_msg_fn_exited(struct hdr *, struct client_ctx *, char **);
|
|
int client_msg_fn_okay(struct hdr *, struct client_ctx *, char **);
|
|
int client_msg_fn_pause(struct hdr *, struct client_ctx *, char **);
|
|
|
|
struct client_msg {
|
|
enum hdrtype type;
|
|
|
|
int (*fn)(struct hdr *, struct client_ctx *, char **);
|
|
};
|
|
struct client_msg client_msg_table[] = {
|
|
{ MSG_DETACH, client_msg_fn_detach },
|
|
{ MSG_ERROR, client_msg_fn_error },
|
|
{ MSG_EXIT, client_msg_fn_exit },
|
|
{ MSG_EXITED, client_msg_fn_exited }
|
|
};
|
|
#define NCLIENTMSG (sizeof client_msg_table / sizeof client_msg_table[0])
|
|
|
|
int
|
|
client_msg_dispatch(struct client_ctx *cctx, char **error)
|
|
{
|
|
struct hdr hdr;
|
|
struct client_msg *msg;
|
|
u_int i;
|
|
|
|
if (BUFFER_USED(cctx->srv_in) < sizeof hdr)
|
|
return (1);
|
|
memcpy(&hdr, BUFFER_OUT(cctx->srv_in), sizeof hdr);
|
|
if (BUFFER_USED(cctx->srv_in) < (sizeof hdr) + hdr.size)
|
|
return (1);
|
|
buffer_remove(cctx->srv_in, sizeof hdr);
|
|
|
|
for (i = 0; i < NCLIENTMSG; i++) {
|
|
msg = client_msg_table + i;
|
|
if (msg->type == hdr.type) {
|
|
if (msg->fn(&hdr, cctx, error) != 0)
|
|
return (-1);
|
|
return (0);
|
|
}
|
|
}
|
|
fatalx("unexpected message");
|
|
}
|
|
|
|
int
|
|
client_msg_fn_error(struct hdr *hdr, struct client_ctx *cctx, char **error)
|
|
{
|
|
if (hdr->size > SIZE_MAX - 1)
|
|
fatalx("bad MSG_ERROR size");
|
|
|
|
*error = xmalloc(hdr->size + 1);
|
|
buffer_read(cctx->srv_in, *error, hdr->size);
|
|
(*error)[hdr->size] = '\0';
|
|
|
|
return (-1);
|
|
}
|
|
|
|
int
|
|
client_msg_fn_detach(
|
|
struct hdr *hdr, unused struct client_ctx *cctx, unused char **error)
|
|
{
|
|
if (hdr->size != 0)
|
|
fatalx("bad MSG_DETACH size");
|
|
|
|
client_write_server(cctx, MSG_EXITING, NULL, 0);
|
|
cctx->flags |= CCTX_DETACH;
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
client_msg_fn_exit(
|
|
struct hdr *hdr, unused struct client_ctx *cctx, unused char **error)
|
|
{
|
|
if (hdr->size != 0)
|
|
fatalx("bad MSG_EXIT size");
|
|
|
|
client_write_server(cctx, MSG_EXITING, NULL, 0);
|
|
cctx->flags |= CCTX_EXIT;
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
client_msg_fn_exited(
|
|
struct hdr *hdr, unused struct client_ctx *cctx, unused char **error)
|
|
{
|
|
if (hdr->size != 0)
|
|
fatalx("bad MSG_EXITED size");
|
|
|
|
return (-1);
|
|
}
|