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Annotation of src/usr.bin/tmux/names.c, Revision 1.14

1.14    ! nicm        1: /* $OpenBSD: names.c,v 1.13 2012/03/17 18:24:07 nicm Exp $ */
1.1       nicm        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:
1.9       nicm       28: void    window_name_callback(unused int, unused short, void *);
1.1       nicm       29: char   *parse_window_name(const char *);
                     30:
                     31: void
1.9       nicm       32: queue_window_name(struct window *w)
1.1       nicm       33: {
1.9       nicm       34:        struct timeval  tv;
1.1       nicm       35:
1.9       nicm       36:        tv.tv_sec = 0;
                     37:        tv.tv_usec = NAME_INTERVAL * 1000L;
1.1       nicm       38:
1.13      nicm       39:        if (event_initialized(&w->name_timer))
                     40:                evtimer_del(&w->name_timer);
1.9       nicm       41:        evtimer_set(&w->name_timer, window_name_callback, w);
                     42:        evtimer_add(&w->name_timer, &tv);
                     43: }
1.5       nicm       44:
1.10      nicm       45: /* ARGSUSED */
1.9       nicm       46: void
                     47: window_name_callback(unused int fd, unused short events, void *data)
                     48: {
                     49:        struct window   *w = data;
                     50:        char            *name, *wname;
1.1       nicm       51:
1.14    ! nicm       52:        queue_window_name(w); /* stopped when option turned off */
1.9       nicm       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 {
1.11      nicm       61:                /*
1.9       nicm       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);
1.1       nicm       69:                else
1.4       nicm       70:                                wname = parse_window_name(name);
1.9       nicm       71:                xfree(name);
                     72:        }
1.11      nicm       73:
1.9       nicm       74:        if (w->active->fd == -1) {
                     75:                xasprintf(&name, "%s[dead]", wname);
                     76:                xfree(wname);
                     77:                wname = name;
                     78:        }
1.11      nicm       79:
1.12      nicm       80:        if (strcmp(wname, w->name)) {
                     81:                window_set_name(w, wname);
1.9       nicm       82:                server_status_window(w);
1.1       nicm       83:        }
1.12      nicm       84:        xfree(wname);
1.1       nicm       85: }
                     86:
                     87: char *
                     88: default_window_name(struct window *w)
                     89: {
                     90:        if (w->active->screen != &w->active->base)
                     91:                return (xstrdup("[tmux]"));
1.4       nicm       92:        if (w->active->cmd != NULL && *w->active->cmd != '\0')
                     93:                return (parse_window_name(w->active->cmd));
1.6       nicm       94:        return (parse_window_name(w->active->shell));
1.1       nicm       95: }
                     96:
                     97: char *
                     98: parse_window_name(const char *in)
                     99: {
                    100:        char    *copy, *name, *ptr;
                    101:
                    102:        name = copy = xstrdup(in);
                    103:        if (strncmp(name, "exec ", (sizeof "exec ") - 1) == 0)
                    104:                name = name + (sizeof "exec ") - 1;
                    105:
                    106:        while (*name == ' ')
                    107:                name++;
                    108:        if ((ptr = strchr(name, ' ')) != NULL)
                    109:                *ptr = '\0';
                    110:
                    111:        if (*name != '\0') {
                    112:                ptr = name + strlen(name) - 1;
1.2       ray       113:                while (ptr > name && !isalnum((u_char)*ptr))
1.1       nicm      114:                        *ptr-- = '\0';
                    115:        }
                    116:
                    117:        if (*name == '/')
                    118:                name = basename(name);
                    119:        name = xstrdup(name);
                    120:        xfree(copy);
                    121:        return (name);
                    122: }