xref: /illumos-gate/usr/src/lib/libadm/common/ckrange.c (revision 1da57d55)

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
/*	  All Rights Reserved  	*/


/*
 * Copyright (c) 1997, by Sun Microsystems, Inc.
 * All rights reserved.
 */

/*LINTLIBRARY*/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <limits.h>
#include <sys/types.h>
#include "libadm.h"

#define	MSGSIZ	256
#define	PROMPT10	"Enter an integer between %ld and %ld"
#define	PROMPT		"Enter a base %d integer between %ld and %ld"
#define	MESG10		"Please enter an integer between %ld and %ld."
#define	MESG		"Please enter a base %d integer between %ld and %ld."

static void
setmsg(char *msg, long lower, long upper, int base)
{
	if ((base == 10) || (base == 0))
		(void) sprintf(msg, MESG10, lower, upper);
	else
		(void) sprintf(msg, MESG, base, lower, upper);
}

void
ckrange_err(long lower, long upper, int base, char *error)
{
	char	defmesg[MSGSIZ];

	setmsg(defmesg, lower, upper, base);
	puterror(stdout, defmesg, error);
}

void
ckrange_hlp(long lower, long upper, int base, char *help)
{
	char	defmesg[MSGSIZ];

	setmsg(defmesg, lower, upper, base);
	puthelp(stdout, defmesg, help);
}

int
ckrange_val(long lower, long upper, int base, char *input)
{
	char	*ptr;
	long	value;

	value = strtol(input, &ptr, base);
	if ((*ptr != '\0') || (value < lower) || (value > upper))
		return (1);
	return (0);
}

int
ckrange(long *rngval, long lower, long upper, short base, char *defstr,
	char *error, char *help, char *prompt)
{
	int	valid, n;
	long	value;
	char	*ptr;
	char	input[MAX_INPUT];
	char	defmesg[MSGSIZ];
	char	defpmpt[128];
	char	buffer[64];
	char	*choices[2];

	if (lower >= upper)
		return (2);

	(void) sprintf(buffer, "%ld-%ld", lower, upper);

	if (base == 0)
		base = 10;

	if (!prompt) {
		if (base == 10)
			(void) sprintf(defpmpt, PROMPT10, lower, upper);
		else
			(void) sprintf(defpmpt, PROMPT, base, lower, upper);
		prompt = defpmpt;
	}

	setmsg(defmesg, lower, upper, base);
	choices[0] = buffer;
	choices[1] = NULL;

start:
	putprmpt(stderr, prompt, choices, defstr);
	if (getinput(input))
		return (1);

	n = (int)strlen(input);
	if (n == 0) {
		if (defstr) {
			*rngval = strtol(defstr, NULL, base);
			return (0);
		}
		puterror(stderr, defmesg, error);
		goto start;
	}
	if (strcmp(input, "?") == 0) {
		puthelp(stderr, defmesg, help);
		goto start;
	}
	if (ckquit && (strcmp(input, "q") == 0))
		return (3);

	value = strtol(input, &ptr, base);
	if (*ptr == '\0')
		valid = ((value >= lower) && (value <= upper));
	else
		valid = 0;
	if (!valid) {
		puterror(stderr, defmesg, error);
		goto start;
	}
	*rngval = value;
	return (0);
}