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Annotation of src/usr.bin/tmux/names.c, Revision 1.10

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