xref: /illumos-gate/usr/src/lib/libadm/common/ckrange.c (revision 1da57d55)
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 
33 #include <stdio.h>
34 #include <string.h>
35 #include <stdlib.h>
36 #include <limits.h>
37 #include <sys/types.h>
38 #include "libadm.h"
39 
40 #define	MSGSIZ	256
41 #define	PROMPT10	"Enter an integer between %ld and %ld"
42 #define	PROMPT		"Enter a base %d integer between %ld and %ld"
43 #define	MESG10		"Please enter an integer between %ld and %ld."
44 #define	MESG		"Please enter a base %d integer between %ld and %ld."
45 
46 static void
setmsg(char * msg,long lower,long upper,int base)47 setmsg(char *msg, long lower, long upper, int base)
48 {
49 	if ((base == 10) || (base == 0))
50 		(void) sprintf(msg, MESG10, lower, upper);
51 	else
52 		(void) sprintf(msg, MESG, base, lower, upper);
53 }
54 
55 void
ckrange_err(long lower,long upper,int base,char * error)56 ckrange_err(long lower, long upper, int base, char *error)
57 {
58 	char	defmesg[MSGSIZ];
59 
60 	setmsg(defmesg, lower, upper, base);
61 	puterror(stdout, defmesg, error);
62 }
63 
64 void
ckrange_hlp(long lower,long upper,int base,char * help)65 ckrange_hlp(long lower, long upper, int base, char *help)
66 {
67 	char	defmesg[MSGSIZ];
68 
69 	setmsg(defmesg, lower, upper, base);
70 	puthelp(stdout, defmesg, help);
71 }
72 
73 int
ckrange_val(long lower,long upper,int base,char * input)74 ckrange_val(long lower, long upper, int base, char *input)
75 {
76 	char	*ptr;
77 	long	value;
78 
79 	value = strtol(input, &ptr, base);
80 	if ((*ptr != '\0') || (value < lower) || (value > upper))
81 		return (1);
82 	return (0);
83 }
84 
85 int
ckrange(long * rngval,long lower,long upper,short base,char * defstr,char * error,char * help,char * prompt)86 ckrange(long *rngval, long lower, long upper, short base, char *defstr,
87 	char *error, char *help, char *prompt)
88 {
89 	int	valid, n;
90 	long	value;
91 	char	*ptr;
92 	char	input[MAX_INPUT];
93 	char	defmesg[MSGSIZ];
94 	char	defpmpt[128];
95 	char	buffer[64];
96 	char	*choices[2];
97 
98 	if (lower >= upper)
99 		return (2);
100 
101 	(void) sprintf(buffer, "%ld-%ld", lower, upper);
102 
103 	if (base == 0)
104 		base = 10;
105 
106 	if (!prompt) {
107 		if (base == 10)
108 			(void) sprintf(defpmpt, PROMPT10, lower, upper);
109 		else
110 			(void) sprintf(defpmpt, PROMPT, base, lower, upper);
111 		prompt = defpmpt;
112 	}
113 
114 	setmsg(defmesg, lower, upper, base);
115 	choices[0] = buffer;
116 	choices[1] = NULL;
117 
118 start:
119 	putprmpt(stderr, prompt, choices, defstr);
120 	if (getinput(input))
121 		return (1);
122 
123 	n = (int)strlen(input);
124 	if (n == 0) {
125 		if (defstr) {
126 			*rngval = strtol(defstr, NULL, base);
127 			return (0);
128 		}
129 		puterror(stderr, defmesg, error);
130 		goto start;
131 	}
132 	if (strcmp(input, "?") == 0) {
133 		puthelp(stderr, defmesg, help);
134 		goto start;
135 	}
136 	if (ckquit && (strcmp(input, "q") == 0))
137 		return (3);
138 
139 	value = strtol(input, &ptr, base);
140 	if (*ptr == '\0')
141 		valid = ((value >= lower) && (value <= upper));
142 	else
143 		valid = 0;
144 	if (!valid) {
145 		puterror(stderr, defmesg, error);
146 		goto start;
147 	}
148 	*rngval = value;
149 	return (0);
150 }
151