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globalcmds.c revision 1.9.2.1 
      1 /*	$NetBSD: globalcmds.c,v 1.9.2.1 2003/01/17 06:57:18 thorpej 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 1.9.2.1 2003/01/17 06:57:18 thorpej 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 l;
     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 	} else if (strncmp(key, s, l = strlen(key)) == 0 && s[l] == '.') {
     66 		p = strdup(s + l + 1);
     67 		if (!p)
     68 			return NULL;
     69 		return p;
     70 	} else
     71 		return NULL;
     72 }
     73 
     74 void
     75 global_help(char *args)
     76 {
     77 	int col, len;
     78 	struct mode *p;
     79 	char *cur, *prev;
     80 
     81 	move(CMDLINE, col = 0);
     82 	cur = prev = NULL;
     83 	for (p = modes; p->c_name; p++) {
     84 		if ((cur = shortname(args, p->c_name)) == NULL)
     85 			continue;
     86 		if (cur && prev && strcmp(cur, prev) == 0) {
     87 			free(cur);
     88 			cur = NULL;
     89 			continue;
     90 		}
     91 		len = strlen(cur);
     92 		if (col + len > COLS)
     93 			break;
     94 		addstr(cur); col += len;
     95 		if (col + 1 < COLS)
     96 			addch(' ');
     97 		if (prev)
     98 			free(prev);
     99 		prev = cur;
    100 		cur = NULL;
    101 	}
    102 	if (col == 0 && args) {
    103 		standout();
    104 		if (strlen(args) < COLS - 25)
    105 			printw("help: no matches for `%s.*'", args);
    106 		else
    107 			printw("help: no matches");
    108 		standend();
    109 	}
    110 	clrtoeol();
    111 	if (cur)
    112 		free(cur);
    113 	if (prev)
    114 		free(prev);
    115 }
    116 
    117 void
    118 global_interval(char *args)
    119 {
    120 	int interval;
    121 
    122 	if (!args) {
    123 		interval = 5;
    124 	} else {
    125 		interval = atoi(args);
    126 	}
    127 
    128 	if (interval <= 0) {
    129 		error("%d: bad interval.", interval);
    130 		return;
    131 	}
    132 
    133 	alarm(0);
    134 	naptime = interval;
    135 	display(0);
    136 	status();
    137 }
    138 
    139 
    140 void
    141 global_load(char *args)
    142 {
    143 	(void)getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0]));
    144 	mvprintw(CMDLINE, 0, "%4.1f %4.1f %4.1f",
    145 	    avenrun[0], avenrun[1], avenrun[2]);
    146 	clrtoeol();
    147 }
    148 
    149 void
    150 global_quit(char *args)
    151 {
    152 	die(0);
    153 }
    154 
    155 void
    156 global_stop(char *args)
    157 {
    158 	alarm(0);
    159 	mvaddstr(CMDLINE, 0, "Refresh disabled.");
    160 	clrtoeol();
    161 }
    162