/*      $NetBSD: globalcmds.c,v 1.15 2009/11/01 22:08:14 dsl Exp $ */

/*-
* Copyright (c) 1999
*      The NetBSD Foundation, Inc.  All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the NetBSD Foundation.
* 4. Neither the name of the Foundation nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: globalcmds.c,v 1.15 2009/11/01 22:08:14 dsl Exp $");
#endif /* not lint */

#include <curses.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "systat.h"
#include "extern.h"

static char *shortname(const char *, const char *);

static char *
shortname(const char *key, const char *s)
{
       char *p, *q;
       size_t len;

       if (key == NULL) {
               if ((p = strdup(s)) == NULL)
                       return NULL;
               q = strchr(p, '.');
               if (q && strlen(q) > 1) {
                       q[1] = '*';
                       q[2] = '\0';
               }
               return p;
       }

       len = strlen(key);
       if (strncmp(key, s, len) == 0 && s[len] == '.') {
               p = strdup(s + len + 1);
               if (!p)
                       return NULL;
               return p;
       }
       return NULL;
}

void
global_help(char *args)
{
       int col, len;
       struct mode *p;
       char *name, *prev;

       move(CMDLINE, col = 0);
       name = prev = NULL;
       for (p = modes; p->c_name; p++) {
               if ((name = shortname(args, p->c_name)) == NULL)
                       continue;
               if (name && prev && strcmp(name, prev) == 0) {
                       free(name);
                       name = NULL;
                       continue;
               }
               len = strlen(name);
               if (col + len > COLS)
                       break;
               addstr(name);
               col += len + 1;
               if (col + 1 < COLS)
                       addch(' ');
               if (prev)
                       free(prev);
               prev = name;
               name = NULL;
       }
       if (col == 0 && args) {
               standout();
               if ((int)strlen(args) < COLS - 25)
                       printw("help: no matches for `%s.*'", args);
               else
                       printw("help: no matches");
               standend();
       }
       clrtoeol();
       if (name)
               free(name);
       if (prev)
               free(prev);
}

void
global_interval(char *args)
{
       int interval;

       if (!args) {
               interval = 5;
       } else {
               interval = atoi(args);
       }

       if (interval <= 0) {
               error("%d: bad interval.", interval);
               return;
       }

       naptime = interval;
       display(0);
       status();
}


void
global_load(char *args)
{
       (void)getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0]));
       mvprintw(CMDLINE, 0, "%4.1f %4.1f %4.1f",
           avenrun[0], avenrun[1], avenrun[2]);
       clrtoeol();
}

void
global_quit(char *args)
{
       die(0);
}

void
global_stop(char *args)
{
       timeout(-1);
       mvaddstr(CMDLINE, 0, "Refresh disabled.");
       clrtoeol();
}