mirror of
https://github.com/tmux/tmux.git
synced 2024-11-05 10:28:48 +00:00
56e37487a8
Fix up window reference counting and don't crash if the rename timer fires while the window is dead but still referenced. Fixes problem reported by Michael Scholz.
132 lines
3.2 KiB
C
132 lines
3.2 KiB
C
/* $Id$ */
|
|
|
|
/*
|
|
* Copyright (c) 2009 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 <ctype.h>
|
|
#include <libgen.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "tmux.h"
|
|
|
|
void window_name_callback(unused int, unused short, void *);
|
|
char *parse_window_name(const char *);
|
|
|
|
void
|
|
queue_window_name(struct window *w)
|
|
{
|
|
struct timeval tv;
|
|
|
|
tv.tv_sec = 0;
|
|
tv.tv_usec = NAME_INTERVAL * 1000L;
|
|
|
|
if (event_initialized(&w->name_timer))
|
|
evtimer_del(&w->name_timer);
|
|
evtimer_set(&w->name_timer, window_name_callback, w);
|
|
evtimer_add(&w->name_timer, &tv);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
void
|
|
window_name_callback(unused int fd, unused short events, void *data)
|
|
{
|
|
struct window *w = data;
|
|
char *name, *wname;
|
|
|
|
if (w->active == NULL)
|
|
return;
|
|
|
|
if (!options_get_number(&w->options, "automatic-rename")) {
|
|
if (event_initialized(&w->name_timer))
|
|
event_del(&w->name_timer);
|
|
return;
|
|
}
|
|
queue_window_name(w);
|
|
|
|
if (w->active->screen != &w->active->base)
|
|
name = NULL;
|
|
else
|
|
name = osdep_get_name(w->active->fd, w->active->tty);
|
|
if (name == NULL)
|
|
wname = default_window_name(w);
|
|
else {
|
|
/*
|
|
* If tmux is using the default command, it will be a login
|
|
* shell and argv[0] may have a - prefix. Remove this if it is
|
|
* present. Ick.
|
|
*/
|
|
if (w->active->cmd != NULL && *w->active->cmd == '\0' &&
|
|
name != NULL && name[0] == '-' && name[1] != '\0')
|
|
wname = parse_window_name(name + 1);
|
|
else
|
|
wname = parse_window_name(name);
|
|
free(name);
|
|
}
|
|
|
|
if (w->active->fd == -1) {
|
|
xasprintf(&name, "%s[dead]", wname);
|
|
free(wname);
|
|
wname = name;
|
|
}
|
|
|
|
if (strcmp(wname, w->name)) {
|
|
window_set_name(w, wname);
|
|
server_status_window(w);
|
|
}
|
|
free(wname);
|
|
}
|
|
|
|
char *
|
|
default_window_name(struct window *w)
|
|
{
|
|
if (w->active->screen != &w->active->base)
|
|
return (xstrdup("[tmux]"));
|
|
if (w->active->cmd != NULL && *w->active->cmd != '\0')
|
|
return (parse_window_name(w->active->cmd));
|
|
return (parse_window_name(w->active->shell));
|
|
}
|
|
|
|
char *
|
|
parse_window_name(const char *in)
|
|
{
|
|
char *copy, *name, *ptr;
|
|
|
|
name = copy = xstrdup(in);
|
|
if (strncmp(name, "exec ", (sizeof "exec ") - 1) == 0)
|
|
name = name + (sizeof "exec ") - 1;
|
|
|
|
while (*name == ' ')
|
|
name++;
|
|
if ((ptr = strchr(name, ' ')) != NULL)
|
|
*ptr = '\0';
|
|
|
|
if (*name != '\0') {
|
|
ptr = name + strlen(name) - 1;
|
|
while (ptr > name && !isalnum((u_char)*ptr))
|
|
*ptr-- = '\0';
|
|
}
|
|
|
|
if (*name == '/')
|
|
name = basename(name);
|
|
name = xstrdup(name);
|
|
free(copy);
|
|
return (name);
|
|
}
|