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 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 #pragma ident "%Z%%M% %I% %E% SMI" 32 33 #include <stdio.h> 34 #include <string.h> 35 #include <limits.h> 36 #include <sys/types.h> 37 #include "libadm.h" 38 39 /* 40 * This file is the only one anywhere to need these functions, 41 * so we declare them here, not in libadm.h 42 */ 43 extern char *__compile(char *, char *, const char *, int); 44 extern int __step(const char *, const char *); 45 46 #define ESIZE 1024 47 48 #define ERRMSG0 "Input is required." 49 #define ERRMSG1 "Please enter a string containing no more than %d characters." 50 #define ERRMSG2 \ 51 "Pattern matching has failed." 52 #define ERRMSG3 \ 53 "Please enter a string which contains no imbedded, \ 54 leading or trailing spaces or tabs." 55 56 #define HLPMSG0 "Please enter a string" 57 #define HLPMSG1 "Please enter a string containing no more than %d characters" 58 #define HLPMSG2 "matches one of the following patterns:" 59 #define HLPMSG3 "matches the following pattern:" 60 #define HLPMSG4 "contains no imbedded, leading or trailing spaces or tabs." 61 62 static char *errstr; 63 64 static char * 65 sethlp(char *msg, char *regexp[], int length) 66 { 67 int i; 68 69 if (length) 70 (void) sprintf(msg, HLPMSG1, length); 71 else 72 (void) strcpy(msg, HLPMSG0); 73 74 (void) strcat(msg, length ? " and " : " which "); 75 76 if (regexp && regexp[0]) { 77 (void) strcat(msg, regexp[1] ? HLPMSG2 : HLPMSG3); 78 for (i = 0; regexp[i]; i++) { 79 (void) strcat(msg, "\\n\\t"); 80 (void) strcat(msg, regexp[i]); 81 } 82 } else 83 (void) strcat(msg, HLPMSG4); 84 return (msg); 85 } 86 87 int 88 ckstr_val(char *regexp[], int length, char *input) 89 { 90 char expbuf[ESIZE]; 91 int i, valid; 92 93 valid = 1; 94 if (length && (strlen(input) > (size_t)length)) { 95 errstr = ERRMSG1; 96 return (1); 97 } 98 if (regexp && regexp[0]) { 99 valid = 0; 100 for (i = 0; !valid && regexp[i]; ++i) { 101 if (!__compile(regexp[i], expbuf, &expbuf[ESIZE], '\0')) 102 return (2); 103 valid = __step(input, expbuf); 104 } 105 if (!valid) 106 errstr = ERRMSG2; 107 } else if (strpbrk(input, " \t")) { 108 errstr = ERRMSG3; 109 valid = 0; 110 } 111 return (valid == 0); 112 } 113 114 void 115 ckstr_err(char *regexp[], int length, char *error, char *input) 116 { 117 char *defhlp; 118 char temp[1024]; 119 120 if (input) { 121 if (ckstr_val(regexp, length, input)) { 122 (void) sprintf(temp, errstr, length); 123 puterror(stdout, temp, error); 124 return; 125 } 126 } 127 128 defhlp = sethlp(temp, regexp, length); 129 puterror(stdout, defhlp, error); 130 } 131 132 void 133 ckstr_hlp(char *regexp[], int length, char *help) 134 { 135 char *defhlp; 136 char hlpbuf[1024]; 137 138 defhlp = sethlp(hlpbuf, regexp, length); 139 puthelp(stdout, defhlp, help); 140 } 141 142 int 143 ckstr(char *strval, char *regexp[], int length, char *defstr, char *error, 144 char *help, char *prompt) 145 { 146 int n; 147 char *defhlp; 148 char input[MAX_INPUT], 149 hlpbuf[1024], 150 errbuf[1024]; 151 152 defhlp = NULL; 153 if (!prompt) 154 prompt = "Enter an appropriate value"; 155 156 start: 157 putprmpt(stderr, prompt, NULL, defstr); 158 if (getinput(input)) 159 return (1); 160 161 n = (int)strlen(input); 162 if (n == 0) { 163 if (defstr) { 164 (void) strcpy(strval, defstr); 165 return (0); 166 } 167 puterror(stderr, ERRMSG0, error); 168 goto start; 169 } 170 if (strcmp(input, "?") == 0) { 171 if (defhlp == NULL) 172 defhlp = sethlp(hlpbuf, regexp, length); 173 puthelp(stderr, defhlp, help); 174 goto start; 175 } 176 if (ckquit && (strcmp(input, "q") == 0)) { 177 (void) strcpy(strval, input); 178 return (3); 179 } 180 if (ckstr_val(regexp, length, input)) { 181 (void) sprintf(errbuf, errstr, length); 182 puterror(stderr, errbuf, error); 183 goto start; 184 } 185 (void) strcpy(strval, input); 186 return (0); 187 } 188