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globalcmds.c revision 1.8 
      1 /*	$NetBSD: globalcmds.c,v 1.8 2000/07/05 11:03:21 ad 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 1.8 2000/07/05 11:03:21 ad Exp $");
     38 #endif /* not lint */
     39 
     40 #include <curses.h>
     41 #include <stdlib.h>
     42 #include <string.h>
     43 #include <unistd.h>
     44 #include "systat.h"
     45 #include "extern.h"
     46 
     47 static char *shortname(const char *, const char *);
     48 
     49 static char *
     50 shortname(const char *key, const char *s)
     51 {
     52 	char *p, *q;
     53 	size_t l;
     54 
     55 	if (key == NULL) {
     56 		if ((p = strdup(s)) == NULL)
     57 			return NULL;
     58 		q = strchr(p, '.');
     59 		if (q && strlen(q) > 1) {
     60 			q[1] = '*';
     61 			q[2] = '\0';
     62 		}
     63 		return p;
     64 	} else if (strncmp(key, s, l = strlen(key)) == 0 && s[l] == '.') {
     65 		p = strdup(s + l + 1);
     66 		return p;
     67 	} else
     68 		return NULL;
     69 }
     70 
     71 void
     72 global_help(char *args)
     73 {
     74 	int col, len;
     75 	struct mode *p;
     76 	char *cur, *prev;
     77 
     78 	move(CMDLINE, col = 0);
     79 	cur = prev = NULL;
     80 	for (p = modes; p->c_name; p++) {
     81 		if ((cur = shortname(args, p->c_name)) == NULL)
     82 			continue;
     83 		if (cur && prev && strcmp(cur, prev) == 0) {
     84 			free(cur);
     85 			cur = NULL;
     86 			continue;
     87 		}
     88 		len = strlen(cur);
     89 		if (col + len > COLS)
     90 			break;
     91 		addstr(cur); col += len;
     92 		if (col + 1 < COLS)
     93 			addch(' ');
     94 		if (prev)
     95 			free(prev);
     96 		prev = cur;
     97 		cur = NULL;
     98 	}
     99 	if (col == 0 && args) {
    100 		standout();
    101 		if (strlen(args) < COLS - 25)
    102 			printw("help: no matches for `%s.*'", args);
    103 		else
    104 			printw("help: no matches");
    105 		standend();
    106 	}
    107 	clrtoeol();
    108 	if (cur)
    109 		free(cur);
    110 	if (prev)
    111 		free(prev);
    112 }
    113 
    114 void
    115 global_interval(char *args)
    116 {
    117 	int interval;
    118 
    119 	if (!args) {
    120 		interval = 5;
    121 	} else {
    122 		interval = atoi(args);
    123 	}
    124 
    125 	if (interval <= 0) {
    126 		error("%d: bad interval.", interval);
    127 		return;
    128 	}
    129 
    130 	alarm(0);
    131 	naptime = interval;
    132 	display(0);
    133 	status();
    134 }
    135 
    136 
    137 void
    138 global_load(char *args)
    139 {
    140 	(void)getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0]));
    141 	mvprintw(CMDLINE, 0, "%4.1f %4.1f %4.1f",
    142 	    avenrun[0], avenrun[1], avenrun[2]);
    143 	clrtoeol();
    144 }
    145 
    146 void
    147 global_quit(char *args)
    148 {
    149 	die(0);
    150 }
    151 
    152 void
    153 global_stop(char *args)
    154 {
    155 	alarm(0);
    156 	mvaddstr(CMDLINE, 0, "Refresh disabled.");
    157 	clrtoeol();
    158 }
    159