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globalcmds.c revision 1.12 
      1 /*	$NetBSD: globalcmds.c,v 1.12 2005/02/26 19:01:09 dsl Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999
      5  *      The NetBSD Foundation, Inc.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by the NetBSD Foundation.
     18  * 4. Neither the name of the Foundation nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  */
     34 
     35 #include <sys/cdefs.h>
     36 #ifndef lint
     37 __RCSID("$NetBSD: globalcmds.c,v 1.12 2005/02/26 19:01:09 dsl Exp $");
     38 #endif /* not lint */
     39 
     40 #include <curses.h>
     41 #include <stdlib.h>
     42 #include <string.h>
     43 #include <unistd.h>
     44 
     45 #include "systat.h"
     46 #include "extern.h"
     47 
     48 static char *shortname(const char *, const char *);
     49 
     50 static char *
     51 shortname(const char *key, const char *s)
     52 {
     53 	char *p, *q;
     54 	size_t len;
     55 
     56 	if (key == NULL) {
     57 		if ((p = strdup(s)) == NULL)
     58 			return NULL;
     59 		q = strchr(p, '.');
     60 		if (q && strlen(q) > 1) {
     61 			q[1] = '*';
     62 			q[2] = '\0';
     63 		}
     64 		return p;
     65 	}
     66 
     67 	len = strlen(key);
     68 	if (strncmp(key, s, len) == 0 && s[len] == '.') {
     69 		p = strdup(s + len + 1);
     70 		if (!p)
     71 			return NULL;
     72 		return p;
     73 	}
     74 	return NULL;
     75 }
     76 
     77 void
     78 global_help(char *args)
     79 {
     80 	int col, len;
     81 	struct mode *p;
     82 	char *cur, *prev;
     83 
     84 	move(CMDLINE, col = 0);
     85 	cur = prev = NULL;
     86 	for (p = modes; p->c_name; p++) {
     87 		if ((cur = shortname(args, p->c_name)) == NULL)
     88 			continue;
     89 		if (cur && prev && strcmp(cur, prev) == 0) {
     90 			free(cur);
     91 			cur = NULL;
     92 			continue;
     93 		}
     94 		len = strlen(cur);
     95 		if (col + len > COLS)
     96 			break;
     97 		addstr(cur); col += len;
     98 		if (col + 1 < COLS)
     99 			addch(' ');
    100 		if (prev)
    101 			free(prev);
    102 		prev = cur;
    103 		cur = NULL;
    104 	}
    105 	if (col == 0 && args) {
    106 		standout();
    107 		if (strlen(args) < COLS - 25)
    108 			printw("help: no matches for `%s.*'", args);
    109 		else
    110 			printw("help: no matches");
    111 		standend();
    112 	}
    113 	clrtoeol();
    114 	if (cur)
    115 		free(cur);
    116 	if (prev)
    117 		free(prev);
    118 }
    119 
    120 void
    121 global_interval(char *args)
    122 {
    123 	int interval;
    124 
    125 	if (!args) {
    126 		interval = 5;
    127 	} else {
    128 		interval = atoi(args);
    129 	}
    130 
    131 	if (interval <= 0) {
    132 		error("%d: bad interval.", interval);
    133 		return;
    134 	}
    135 
    136 	naptime = interval;
    137 	display(0);
    138 	status();
    139 }
    140 
    141 
    142 void
    143 global_load(char *args)
    144 {
    145 	(void)getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0]));
    146 	mvprintw(CMDLINE, 0, "%4.1f %4.1f %4.1f",
    147 	    avenrun[0], avenrun[1], avenrun[2]);
    148 	clrtoeol();
    149 }
    150 
    151 void
    152 global_quit(char *args)
    153 {
    154 	die(0);
    155 }
    156 
    157 void
    158 global_stop(char *args)
    159 {
    160 	timeout(-1);
    161 	mvaddstr(CMDLINE, 0, "Refresh disabled.");
    162 	clrtoeol();
    163 }
    164