/*	$NetBSD: lcmd2.c,v 1.15 2008/12/29 01:53:35 christos Exp $	*/

/*
 * Copyright (c) 1983, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Edward Wang at The University of California, Berkeley.
 *
 * 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. Neither the name of the University 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
#if 0
static char sccsid[] = "@(#)lcmd2.c	8.1 (Berkeley) 6/6/93";
#else
__RCSID("$NetBSD: lcmd2.c,v 1.15 2008/12/29 01:53:35 christos Exp $");
#endif
#endif /* not lint */

#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <string.h>
#include "defs.h"
#include "window_string.h"
#include "var.h"
#include "lcmd.h"
#include "alias.h"

int	printalias(void *, struct var *);
int	printvar(void *, struct var *);
char	*strtime(struct timeval *t);

void
l_iostat(struct value *v __unused, struct value *a __unused)
{
	struct ww *w;

	if ((w = openiwin(16, "IO Statistics")) == 0) {
		error("Can't open statistics window: %s.", wwerror());
		return;
	}
	wwprintf(w, "ttflush\twrite\terror\tzero\tchar\n");
	wwprintf(w, "%d\t%d\t%d\t%d\t%d\n",
		wwnflush, wwnwr, wwnwre, wwnwrz, wwnwrc);
	wwprintf(w, "token\tuse\tbad\tsaving\ttotal\tbaud\n");
	wwprintf(w, "%d\t%d\t%d\t%d\t%d\t%d/%d (%.1f/%.1f)\n",
		wwntokdef, wwntokuse, wwntokbad, wwntoksave, wwntokc,
		wwntokc - wwntoksave ?
			(int) ((float) wwbaud * wwntokc /
					(wwntokc - wwntoksave)) :
			wwbaud,
		wwnwrc ? (int) ((float) wwbaud * (wwnwrc + wwntoksave) /
					wwnwrc) :
			wwbaud,
		wwntokc - wwntoksave ?
			(float) wwntokc / (wwntokc - wwntoksave) : 1.0,
		wwnwrc ? (float) (wwnwrc + wwntoksave) / wwnwrc : 1.0);
	wwprintf(w, "wwwrite\tattempt\tchar\n");
	wwprintf(w, "%d\t%d\t%d\n",
		wwnwwr, wwnwwra, wwnwwrc);
	wwprintf(w, "wwupdat\tline\tmiss\tscan\tclreol\tclreos\tmiss\tline\n");
	wwprintf(w, "%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n",
		wwnupdate, wwnupdline, wwnupdmiss, wwnupdscan, wwnupdclreol,
		wwnupdclreos, wwnupdclreosmiss, wwnupdclreosline);
	wwprintf(w, "select\terror\tzero\n");
	wwprintf(w, "%d\t%d\t%d\n",
		wwnselect, wwnselecte, wwnselectz);
	wwprintf(w, "read\terror\tzero\tchar\tack\tnack\tstat\terrorc\n");
	wwprintf(w, "%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n",
		wwnread, wwnreade, wwnreadz, wwnreadc, wwnreadack, wwnreadnack,
		wwnreadstat, wwnreadec);
	wwprintf(w, "ptyread\terror\tzero\tcontrol\tdata\tchar\n");
	wwprintf(w, "%d\t%d\t%d\t%d\t%d\t%d\n",
		wwnwread, wwnwreade, wwnwreadz,
		wwnwreadp, wwnwreadd, wwnwreadc);
	waitnl(w);
	closeiwin(w);
}

struct lcmd_arg arg_time[] = {
	{ "who",	1,	ARG_STR },
	{ NULL,		0,	0 }
};

void
l_time(struct value *v __unused, struct value *a)
{
	struct ww *w;
	struct rusage rusage;
	struct timeval timeval;

	if ((w = openiwin(8, "Timing and Resource Usage")) == 0) {
		error("Can't open time window: %s.", wwerror());
		return;
	}

	(void) gettimeofday(&timeval, (struct timezone *)0);
        timersub(&timeval, &starttime, &timeval);
	(void) getrusage(a->v_type == V_STR
			&& str_match(a->v_str, "children", 1)
		? RUSAGE_CHILDREN : RUSAGE_SELF, &rusage);

	wwprintf(w, "%-15s %-15s %-15s\n",
		"time", "utime", "stime");
	wwprintf(w, "%-15s ", strtime(&timeval));
	wwprintf(w, "%-15s ", strtime(&rusage.ru_utime));
	wwprintf(w, "%-15s\n", strtime(&rusage.ru_stime));
	wwprintf(w, "%-15s %-15s %-15s %-15s\n",
		"maxrss", "ixrss", "idrss", "isrss");
	wwprintf(w, "%-15ld %-15ld %-15ld %-15ld\n",
		rusage.ru_maxrss, rusage.ru_ixrss,
		rusage.ru_idrss, rusage.ru_isrss);
	wwprintf(w, "%-7s %-7s %-7s %-7s %-7s %-7s %-7s %-7s %-7s %-7s\n",
		"minflt", "majflt", "nswap", "inblk", "oublk",
		"msgsnd", "msgrcv", "nsigs", "nvcsw", "nivcsw");
	wwprintf(w, "%-7ld %-7ld %-7ld %-7ld %-7ld %-7ld %-7ld %-7ld %-7ld %-7ld\n",
		rusage.ru_minflt, rusage.ru_majflt, rusage.ru_nswap,
		rusage.ru_inblock, rusage.ru_oublock,
		rusage.ru_msgsnd, rusage.ru_msgrcv, rusage.ru_nsignals,
		rusage.ru_nvcsw, rusage.ru_nivcsw);

	waitnl(w);
	closeiwin(w);
}

char *
strtime(struct timeval *t)
{
	char fill = 0;
	static char buf[20];
	char *p = buf;

	if (t->tv_sec > 60*60) {
		(void) sprintf(p, "%ld:", (long int)t->tv_sec / (60*60));
		while (*p++)
			;
		p--;
		t->tv_sec %= 60*60;
		fill++;
	}
	if (t->tv_sec > 60) {
		(void) sprintf(p, fill ? "%02lld:" : "%lld:",
		    (long long)t->tv_sec / 60);
		while (*p++)
			;
		p--;
		t->tv_sec %= 60;
		fill++;
	}
	(void) sprintf(p, fill ? "%02lld.%02ld" : "%lld.%02ld",
		(long long)t->tv_sec, (long)t->tv_usec / 10000);
	return buf;
}

void
l_list(struct value *v __unused, struct value *a __unused)
{
	struct ww *w, *wp;
	int i;
	int n;

	for (n = 0, i = 0; i < NWINDOW; i++)
		if (window[i] != 0)
			n++;
	if (n == 0) {
		error("No windows.");
		return;
	}
	if ((w = openiwin(n + 2, "Windows")) == 0) {
		error("Can't open listing window: %s.", wwerror());
		return;
	}
	for (i = 0; i < NWINDOW; i++) {
		if ((wp = window[i]) == 0)
			continue;
		wwprintf(w, "%c %c %-13s %-.*s\n",
			wp == selwin ? '+' : (wp == lastselwin ? '-' : ' '),
			i + '1',
			wp->ww_state == WWS_HASPROC ? "" : "(No process)",
			wwncol - 20,
			wp->ww_label ? wp->ww_label : "(No label)");
	}
	waitnl(w);
	closeiwin(w);
}

void
l_variable(struct value *v __unused, struct value *a __unused)
{
	struct ww *w;

	if ((w = openiwin(wwnrow - 3, "Variables")) == 0) {
		error("Can't open variable window: %s.", wwerror());
		return;
	}
	if (var_walk(printvar, (void *)w) >= 0)
		waitnl(w);
	closeiwin(w);
}

int
printvar(void *vw, struct var *r)
{
	struct ww *w = vw;
	if (more(w, 0) == 2)
		return -1;
	wwprintf(w, "%16s    ", r->r_name);
	switch (r->r_val.v_type) {
	case V_STR:
		wwprintf(w, "%s\n", r->r_val.v_str);
		break;
	case V_NUM:
		wwprintf(w, "%d\n", r->r_val.v_num);
		break;
	case V_ERR:
		wwprintf(w, "ERROR\n");
		break;
	}
	return 0;
}

struct lcmd_arg arg_def_shell[] = {
	{ "",	0,		ARG_ANY|ARG_LIST },
	{ NULL,	0,		0 }
};

void
l_def_shell(struct value *v, struct value *a)
{
	char **pp;
	struct value *vp;

	if (a->v_type == V_ERR) {
		if ((v->v_str = str_cpy(default_shellfile)) != 0)
			v->v_type = V_STR;
		return;
	}
	if ((v->v_str = default_shellfile)) {
		v->v_type = V_STR;
		for (pp = default_shell + 1; *pp; pp++) {
			str_free(*pp);
			*pp = 0;
		}
	}
	for (pp = default_shell, vp = a;
	     vp->v_type != V_ERR &&
	     pp < &default_shell[sizeof default_shell/sizeof *default_shell-1];
	     pp++, vp++)
		if ((*pp = vp->v_type == V_STR ?
		     str_cpy(vp->v_str) : str_itoa(vp->v_num)) == 0) {
			/* just leave default_shell[] the way it is */
			p_memerror();
			break;
		}
	if ((default_shellfile = *default_shell)) {
		if ((*default_shell = strrchr(default_shellfile, '/')))
			(*default_shell)++;
		else
			*default_shell = default_shellfile;
	}
}

struct lcmd_arg arg_alias[] = {
	{ "",	0,		ARG_STR },
	{ "",	0,		ARG_STR|ARG_LIST },
	{ NULL,	0,		0 }
};

void
l_alias(struct value *v, struct value *a)
{
	if (a->v_type == V_ERR) {
		struct ww *w;

		if ((w = openiwin(wwnrow - 3, "Aliases")) == 0) {
			error("Can't open alias window: %s.", wwerror());
			return;
		}
		if (alias_walk(printalias, (void *)w) >= 0)
			waitnl(w);
		closeiwin(w);
	} else {
		struct alias *ap = 0;

		if ((ap = alias_lookup(a->v_str))) {
			if ((v->v_str = str_cpy(ap->a_buf)) == 0) {
				p_memerror();
				return;
			}
			v->v_type = V_STR;
		}
		if (a[1].v_type == V_STR) {
			struct value *vp;
			char *p, *q;
			char *str;
			int n;

			for (n = 0, vp = a + 1; vp->v_type != V_ERR; vp++, n++)
				for (p = vp->v_str; *p; p++, n++)
					;
			if ((str = str_alloc(n)) == 0) {
				p_memerror();
				return;
			}
			for (q = str, vp = a + 1; vp->v_type != V_ERR;
			     vp++, q[-1] = ' ')
				for (p = vp->v_str; (*q++ = *p++);)
					;
			q[-1] = 0;
			if ((ap = alias_set(a[0].v_str, (char *)0)) == 0) {
				p_memerror();
				str_free(str);
				return;
			}
			ap->a_buf = str;
		}
	}
}

int
printalias(void *vw, struct var *a)
{
	struct ww *w = vw;
	if (more(w, 0) == 2)
		return -1;
	wwprintf(w, "%16s    %s\n", a->a_name, a->a_buf);
	return 0;
}

struct lcmd_arg arg_unalias[] = {
	{ "alias",	1,	ARG_STR },
	{ NULL,		0,	0 }
};

void
l_unalias(struct value *v, struct value *a)
{
	if (a->v_type == ARG_STR)
		v->v_num = alias_unset(a->v_str);
	v->v_type = V_NUM;
}

struct lcmd_arg arg_echo[] = {
	{ "window",	1,	ARG_NUM },
	{ "",		0,	ARG_ANY|ARG_LIST },
	{ NULL,		0,	0 }
};

void
l_echo(struct value *v __unused, struct value *a)
{
	char buf[20];
	struct ww *w;

	if ((w = vtowin(a++, selwin)) == 0)
		return;
	while (a->v_type != V_ERR) {
		if (a->v_type == V_NUM) {
			(void) sprintf(buf, "%d", a->v_num);
			(void) wwwrite(w, buf, strlen(buf));
		} else
			(void) wwwrite(w, a->v_str, strlen(a->v_str));
		if ((++a)->v_type != V_ERR)
			(void) wwwrite(w, " ", 1);
	}
	(void) wwwrite(w, "\r\n", 2);
}