usr/src/lib/libadm/common/ckint.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 /*LINTLIBRARY*/
  32 #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.3 */
  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 static void
  42 setmsg(char *msg, short base)
  43 {
  44         if ((base == 0) || (base == 10))
  45                 (void) sprintf(msg, "Please enter an integer.");
  46         else
  47                 (void) sprintf(msg, "Please enter a base %d integer.", base);
  48 }
  49
  50 static void
  51 setprmpt(char *prmpt, short base)
  52 {
  53         if ((base == 0) || (base == 10))
  54                 (void) sprintf(prmpt, "Enter an integer.");
  55         else
  56                 (void) sprintf(prmpt, "Enter a base %d integer.", base);
  57 }
  58
  59 int
  60 ckint_val(char *value, short base)
  61 {
  62         char    *ptr;
  63
  64         (void) strtol(value, &ptr, (int)base);
  65         if (*ptr == '\0')
  66                 return (0);
  67         return (1);
  68 }
  69
  70 void
  71 ckint_err(short base, char *error)
  72 {
  73         char    defmesg[64];
  74
  75         setmsg(defmesg, base);
  76         puterror(stdout, defmesg, error);
  77 }
  78
  79 void
  80 ckint_hlp(short base, char *help)
  81 {
  82         char    defmesg[64];
  83
  84         setmsg(defmesg, base);
  85         puthelp(stdout, defmesg, help);
  86 }
  87
  88 int
  89 ckint(long *intval, short base, char *defstr, char *error, char *help,
  90         char *prompt)
  91 {
  92         long    value;
  93         char    *ptr,
  94                 input[MAX_INPUT],
  95                 defmesg[64],
  96                 temp[64];
  97
  98         if (!prompt) {
  99                 setprmpt(temp, base);
 100                 prompt = temp;
 101         }
 102         setmsg(defmesg, base);
 103
 104 start:
 105         putprmpt(stderr, prompt, NULL, defstr);
 106         if (getinput(input))
 107                 return (1);
 108
 109         if (strlen(input) == 0) {
 110                 if (defstr) {
 111                         *intval = strtol(defstr, NULL, (int)base);
 112                         return (0);
 113                 }
 114                 puterror(stderr, defmesg, error);
 115                 goto start;
 116         } else if (strcmp(input, "?") == 0) {
 117                 puthelp(stderr, defmesg, help);
 118                 goto start;
 119         } else if (ckquit && (strcmp(input, "q") == 0))
 120                 return (3);
 121
 122         value = strtol(input, &ptr, (int)base);
 123         if (*ptr != '\0') {
 124                 puterror(stderr, defmesg, error);
 125                 goto start;
 126         }
 127         *intval = value;
 128         return (0);
 129 }