libadm/common/ckrange.c

/*
 * 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.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"    /* SVr4.0 1.3 */
/*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);
}