usr/src/lib/libadm/common/ckrange.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  23 /*        All Rights Reserved   */
  24
  25
  26 /*
  27  * Copyright (c) 1997, by Sun Microsystems, Inc.
  28  * All rights reserved.
  29  */
  30
  31 #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.3 */
  32 /*LINTLIBRARY*/
  33
  34 #include <stdio.h>
  35 #include <string.h>
  36 #include <stdlib.h>
  37 #include <limits.h>
  38 #include <sys/types.h>
  39 #include "libadm.h"
  40
  41 #define MSGSIZ  256
  42 #define PROMPT10        "Enter an integer between %ld and %ld"
  43 #define PROMPT          "Enter a base %d integer between %ld and %ld"
  44 #define MESG10          "Please enter an integer between %ld and %ld."
  45 #define MESG            "Please enter a base %d integer between %ld and %ld."
  46
  47 static void
  48 setmsg(char *msg, long lower, long upper, int base)
  49 {
  50         if ((base == 10) || (base == 0))
  51                 (void) sprintf(msg, MESG10, lower, upper);
  52         else
  53                 (void) sprintf(msg, MESG, base, lower, upper);
  54 }
  55
  56 void
  57 ckrange_err(long lower, long upper, int base, char *error)
  58 {
  59         char    defmesg[MSGSIZ];
  60
  61         setmsg(defmesg, lower, upper, base);
  62         puterror(stdout, defmesg, error);
  63 }
  64
  65 void
  66 ckrange_hlp(long lower, long upper, int base, char *help)
  67 {
  68         char    defmesg[MSGSIZ];
  69
  70         setmsg(defmesg, lower, upper, base);
  71         puthelp(stdout, defmesg, help);
  72 }
  73
  74 int
  75 ckrange_val(long lower, long upper, int base, char *input)
  76 {
  77         char    *ptr;
  78         long    value;
  79
  80         value = strtol(input, &ptr, base);
  81         if ((*ptr != '\0') || (value < lower) || (value > upper))
  82                 return (1);
  83         return (0);
  84 }
  85
  86 int
  87 ckrange(long *rngval, long lower, long upper, short base, char *defstr,
  88         char *error, char *help, char *prompt)
  89 {
  90         int     valid, n;
  91         long    value;
  92         char    *ptr;
  93         char    input[MAX_INPUT];
  94         char    defmesg[MSGSIZ];
  95         char    defpmpt[128];
  96         char    buffer[64];
  97         char    *choices[2];
  98
  99         if (lower >= upper)
 100                 return (2);
 101
 102         (void) sprintf(buffer, "%ld-%ld", lower, upper);
 103
 104         if (base == 0)
 105                 base = 10;
 106
 107         if (!prompt) {
 108                 if (base == 10)
 109                         (void) sprintf(defpmpt, PROMPT10, lower, upper);
 110                 else
 111                         (void) sprintf(defpmpt, PROMPT, base, lower, upper);
 112                 prompt = defpmpt;
 113         }
 114
 115         setmsg(defmesg, lower, upper, base);
 116         choices[0] = buffer;
 117         choices[1] = NULL;
 118
 119 start:
 120         putprmpt(stderr, prompt, choices, defstr);
 121         if (getinput(input))
 122                 return (1);
 123
 124         n = (int)strlen(input);
 125         if (n == 0) {
 126                 if (defstr) {
 127                         *rngval = strtol(defstr, NULL, base);
 128                         return (0);
 129                 }
 130                 puterror(stderr, defmesg, error);
 131                 goto start;
 132         }
 133         if (strcmp(input, "?") == 0) {
 134                 puthelp(stderr, defmesg, help);
 135                 goto start;
 136         }
 137         if (ckquit && (strcmp(input, "q") == 0))
 138                 return (3);
 139
 140         value = strtol(input, &ptr, base);
 141         if (*ptr == '\0')
 142                 valid = ((value >= lower) && (value <= upper));
 143         else
 144                 valid = 0;
 145         if (!valid) {
 146                 puterror(stderr, defmesg, error);
 147                 goto start;
 148         }
 149         *rngval = value;
 150         return (0);
 151 }