tmux/server-fn.c

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/* $Id: server-fn.c,v 1.53 2009-01-11 00:48:42 nicm Exp $ */
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/*
* 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 <sys/time.h>
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#include <string.h>
#include <unistd.h>
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#include "tmux.h"
int server_lock_callback(void *, const char *);
void
server_set_client_message(struct client *c, const char *msg)
{
struct timeval tv;
int delay;
delay = options_get_number(&c->session->options, "display-time");
tv.tv_sec = delay / 1000;
tv.tv_usec = (delay % 1000) * 1000L;
c->message_string = xstrdup(msg);
if (gettimeofday(&c->message_timer, NULL) != 0)
fatal("gettimeofday");
timeradd(&c->message_timer, &tv, &c->message_timer);
c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
c->flags |= CLIENT_STATUS;
}
void
server_clear_client_message(struct client *c)
{
if (c->message_string == NULL)
return;
xfree(c->message_string);
c->message_string = NULL;
c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
c->flags |= CLIENT_REDRAW;
}
void
server_set_client_prompt(struct client *c,
const char *msg, int (*fn)(void *, const char *), void *data, int hide)
{
c->prompt_string = xstrdup(msg);
c->prompt_buffer = xstrdup("");
c->prompt_index = 0;
c->prompt_callback = fn;
c->prompt_data = data;
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c->prompt_hindex = 0;
c->prompt_hidden = hide;
c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
c->flags |= CLIENT_STATUS;
}
void
server_clear_client_prompt(struct client *c)
{
if (c->prompt_string == NULL)
return;
xfree(c->prompt_string);
c->prompt_string = NULL;
xfree(c->prompt_buffer);
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c->prompt_buffer = NULL;
c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
c->flags |= CLIENT_REDRAW;
}
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void
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server_write_client(
struct client *c, enum hdrtype type, const void *buf, size_t len)
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{
struct hdr hdr;
log_debug("writing %d to client %d", type, c->fd);
hdr.type = type;
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hdr.size = len;
buffer_write(c->out, &hdr, sizeof hdr);
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if (buf != NULL && len > 0)
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buffer_write(c->out, buf, len);
}
void
server_write_session(
struct session *s, enum hdrtype type, const void *buf, size_t len)
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{
struct client *c;
u_int i;
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for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
c = ARRAY_ITEM(&clients, i);
if (c == NULL || c->session == NULL)
continue;
if (c->session == s)
server_write_client(c, type, buf, len);
}
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}
void
server_write_window(
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struct window *w, enum hdrtype type, const void *buf, size_t len)
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{
struct client *c;
u_int i;
for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
c = ARRAY_ITEM(&clients, i);
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if (c == NULL || c->session == NULL)
continue;
if (c->session->curw->window == w)
server_write_client(c, type, buf, len);
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}
}
void
server_redraw_client(struct client *c)
{
c->flags |= CLIENT_REDRAW;
}
void
server_status_client(struct client *c)
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{
c->flags |= CLIENT_STATUS;
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}
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void
server_redraw_session(struct session *s)
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{
struct client *c;
u_int i;
for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
c = ARRAY_ITEM(&clients, i);
if (c == NULL || c->session == NULL)
continue;
if (c->session == s)
server_redraw_client(c);
}
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}
void
server_status_session(struct session *s)
{
struct client *c;
u_int i;
for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
c = ARRAY_ITEM(&clients, i);
if (c == NULL || c->session == NULL)
continue;
if (c->session == s)
server_status_client(c);
}
}
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void
server_redraw_window(struct window *w)
{
struct client *c;
u_int i;
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for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
c = ARRAY_ITEM(&clients, i);
if (c == NULL || c->session == NULL)
continue;
if (c->session->curw->window == w)
server_redraw_client(c);
}
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}
void
server_status_window(struct window *w)
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{
struct session *s;
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u_int i;
/*
* This is slightly different. We want to redraw the status line of any
* clients containing this window rather than any where it is the
* current window.
*/
for (i = 0; i < ARRAY_LENGTH(&sessions); i++) {
s = ARRAY_ITEM(&sessions, i);
if (s != NULL && session_has(s, w))
server_status_session(s);
}
}
void
server_lock(void)
{
struct client *c;
u_int i;
if (server_locked)
return;
for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
c = ARRAY_ITEM(&clients, i);
if (c == NULL)
continue;
server_clear_client_prompt(c);
server_set_client_prompt(
c, "Password: ", server_lock_callback, c, 1);
server_redraw_client(c);
}
server_locked = 1;
}
int
server_lock_callback(unused void *data, const char *s)
{
return (server_unlock(s));
}
int
server_unlock(const char *s)
{
struct client *c;
u_int i;
char *out;
if (!server_locked)
return (0);
if (server_password != NULL) {
if (s == NULL)
return (-1);
out = crypt(s, server_password);
if (strcmp(out, server_password) != 0)
return (-1);
}
for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
c = ARRAY_ITEM(&clients, i);
if (c == NULL)
continue;
server_clear_client_prompt(c);
server_redraw_client(c);
}
server_locked = 0;
return (0);
}