1/* $OpenBSD: getinp.c,v 1.12 2016/01/08 18:20:33 mestre Exp $ */ 2/* $NetBSD: getinp.c,v 1.4 1995/04/24 12:24:20 cgd Exp $ */ 3 4/* 5 * Copyright (c) 1980, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#include <ctype.h> 34#include <stdio.h> 35#include <stdlib.h> 36#include <string.h> 37 38#include "monop.ext" 39 40#define LINE 70 41 42static char buf[257]; 43 44static int comp(char *); 45 46int 47getinp(char *prompt, char *list[]) 48{ 49 int i, n_match, match; 50 char *sp; 51 52 for (;;) { 53 printf("%s", prompt); 54 fgets(buf, sizeof(buf), stdin); 55 if ((feof(stdin))) { 56 printf("user closed input stream, quitting...\n"); 57 exit(0); 58 } 59 if (buf[0] == '?' /* && buf[1] == '\n' */ ) { 60 printf("Valid inputs are: "); 61 for (i = 0, match = 18; list[i]; i++) { 62 if ((match += (n_match = strlen(list[i]))) > LINE) { 63 printf("\n\t"); 64 match = n_match + 8; 65 } 66 if (*list[i] == '\0') { 67 match += 8; 68 printf("<RETURN>"); 69 } 70 else 71 printf("%s", list[i]); 72 if (list[i+1]) 73 printf(", "); 74 else 75 putchar('\n'); 76 match += 2; 77 } 78 continue; 79 } 80 if ((sp = strchr(buf, '\n')) != NULL) 81 *sp = '\0'; 82 for (sp = buf; *sp; sp++) 83 if (isupper((unsigned char)*sp)) 84 *sp = tolower((unsigned char)*sp); 85 for (i = n_match = 0; list[i]; i++) 86 if (comp(list[i])) { 87 n_match++; 88 match = i; 89 } 90 if (n_match == 1) 91 return match; 92 else if (buf[0] != '\0') 93 printf("Illegal response: \"%s\". Use '?' to get list of valid answers\n", buf); 94 } 95 return 0; 96} 97 98static int 99comp(char *s1) 100{ 101 char *sp, *tsp, c; 102 103 if (buf[0] != '\0') 104 for (sp = buf, tsp = s1; *sp; ) { 105 c = isupper((unsigned char)*tsp) ? 106 tolower((unsigned char)*tsp) : *tsp; 107 tsp++; 108 if (c != *sp++) 109 return 0; 110 } 111 else if (*s1 != '\0') 112 return 0; 113 return 1; 114} 115