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Annotation of src/usr.bin/tmux/names.c, Revision 1.6

1.6     ! nicm        1: /* $OpenBSD: names.c,v 1.5 2009/08/18 21:18:20 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:
                     28: char   *parse_window_name(const char *);
                     29:
                     30: void
                     31: set_window_names(void)
                     32: {
                     33:        struct window   *w;
                     34:        u_int            i;
                     35:        char            *name, *wname;
                     36:        struct timeval   tv, tv2;
                     37:
                     38:        if (gettimeofday(&tv, NULL) != 0)
                     39:                fatal("gettimeofday");
                     40:
                     41:        for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
                     42:                w = ARRAY_ITEM(&windows, i);
                     43:                if (w == NULL || w->active == NULL)
                     44:                        continue;
                     45:
                     46:                if (timercmp(&tv, &w->name_timer, <))
                     47:                        continue;
                     48:                memcpy(&w->name_timer, &tv, sizeof w->name_timer);
                     49:                tv2.tv_sec = 0;
                     50:                tv2.tv_usec = NAME_INTERVAL * 1000L;
                     51:                timeradd(&w->name_timer, &tv2, &w->name_timer);
1.5       nicm       52:
                     53:                if (!options_get_number(&w->options, "automatic-rename"))
                     54:                        continue;
1.1       nicm       55:
                     56:                if (w->active->screen != &w->active->base)
                     57:                        name = NULL;
                     58:                else
                     59:                        name = get_proc_name(w->active->fd, w->active->tty);
                     60:                if (name == NULL)
                     61:                        wname = default_window_name(w);
                     62:                else {
1.4       nicm       63:                        /*
                     64:                         * If tmux is using the default command, it will be a
                     65:                         * login shell and argv[0] may have a - prefix. Remove
                     66:                         * this if it is present. Ick.
                     67:                         */
                     68:                        if (w->active->cmd != NULL && *w->active->cmd == '\0' &&
                     69:                            name != NULL && name[0] == '-' && name[1] != '\0')
                     70:                                wname = parse_window_name(name + 1);
                     71:                        else
                     72:                                wname = parse_window_name(name);
1.1       nicm       73:                        xfree(name);
                     74:                }
                     75:
                     76:                if (strcmp(wname, w->name) == 0)
                     77:                        xfree(wname);
                     78:                else {
                     79:                        xfree(w->name);
                     80:                        w->name = wname;
                     81:                        server_status_window(w);
                     82:                }
                     83:        }
                     84: }
                     85:
                     86: char *
                     87: default_window_name(struct window *w)
                     88: {
                     89:        if (w->active->screen != &w->active->base)
                     90:                return (xstrdup("[tmux]"));
1.4       nicm       91:        if (w->active->cmd != NULL && *w->active->cmd != '\0')
                     92:                return (parse_window_name(w->active->cmd));
1.6     ! nicm       93:        return (parse_window_name(w->active->shell));
1.1       nicm       94: }
                     95:
                     96: char *
                     97: parse_window_name(const char *in)
                     98: {
                     99:        char    *copy, *name, *ptr;
                    100:
                    101:        name = copy = xstrdup(in);
                    102:        if (strncmp(name, "exec ", (sizeof "exec ") - 1) == 0)
                    103:                name = name + (sizeof "exec ") - 1;
                    104:
                    105:        while (*name == ' ')
                    106:                name++;
                    107:        if ((ptr = strchr(name, ' ')) != NULL)
                    108:                *ptr = '\0';
                    109:
                    110:        if (*name != '\0') {
                    111:                ptr = name + strlen(name) - 1;
1.2       ray       112:                while (ptr > name && !isalnum((u_char)*ptr))
1.1       nicm      113:                        *ptr-- = '\0';
                    114:        }
                    115:
                    116:        if (*name == '/')
                    117:                name = basename(name);
                    118:        name = xstrdup(name);
                    119:        xfree(copy);
                    120:        return (name);
                    121: }