1 /* $OpenBSD: names.c,v 1.9 2009/11/04 23:54:57 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2009 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 <ctype.h> 22 #include <libgen.h> 23 #include <string.h> 24 #include <unistd.h> 25 26 #include "tmux.h" 27 28 void window_name_callback(unused int, unused short, void *); 29 char *parse_window_name(const char *); 30 31 void 32 queue_window_name(struct window *w) 33 { 34 struct timeval tv; 35 36 tv.tv_sec = 0; 37 tv.tv_usec = NAME_INTERVAL * 1000L; 38 39 evtimer_del(&w->name_timer); 40 evtimer_set(&w->name_timer, window_name_callback, w); 41 evtimer_add(&w->name_timer, &tv); 42 } 43 44 void 45 window_name_callback(unused int fd, unused short events, void *data) 46 { 47 struct window *w = data; 48 char *name, *wname; 49 50 queue_window_name(w); /* XXX even if the option is off? */ 51 if (!options_get_number(&w->options, "automatic-rename")) 52 return; 53 54 if (w->active->screen != &w->active->base) 55 name = NULL; 56 else 57 name = get_proc_name(w->active->fd, w->active->tty); 58 if (name == NULL) 59 wname = default_window_name(w); 60 else { 61 /* 62 * If tmux is using the default command, it will be a login 63 * shell and argv[0] may have a - prefix. Remove this if it is 64 * present. Ick. 65 */ 66 if (w->active->cmd != NULL && *w->active->cmd == '\0' && 67 name != NULL && name[0] == '-' && name[1] != '\0') 68 wname = parse_window_name(name + 1); 69 else 70 wname = parse_window_name(name); 71 xfree(name); 72 } 73 74 if (w->active->fd == -1) { 75 xasprintf(&name, "%s[dead]", wname); 76 xfree(wname); 77 wname = name; 78 } 79 80 if (strcmp(wname, w->name) == 0) 81 xfree(wname); 82 else { 83 xfree(w->name); 84 w->name = wname; 85 server_status_window(w); 86 } 87 } 88 89 char * 90 default_window_name(struct window *w) 91 { 92 if (w->active->screen != &w->active->base) 93 return (xstrdup("[tmux]")); 94 if (w->active->cmd != NULL && *w->active->cmd != '\0') 95 return (parse_window_name(w->active->cmd)); 96 return (parse_window_name(w->active->shell)); 97 } 98 99 char * 100 parse_window_name(const char *in) 101 { 102 char *copy, *name, *ptr; 103 104 name = copy = xstrdup(in); 105 if (strncmp(name, "exec ", (sizeof "exec ") - 1) == 0) 106 name = name + (sizeof "exec ") - 1; 107 108 while (*name == ' ') 109 name++; 110 if ((ptr = strchr(name, ' ')) != NULL) 111 *ptr = '\0'; 112 113 if (*name != '\0') { 114 ptr = name + strlen(name) - 1; 115 while (ptr > name && !isalnum((u_char)*ptr)) 116 *ptr-- = '\0'; 117 } 118 119 if (*name == '/') 120 name = basename(name); 121 name = xstrdup(name); 122 xfree(copy); 123 return (name); 124 } 125