1 /*- 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)getcom.c 8.1 (Berkeley) 5/31/93 30 * $FreeBSD: src/games/battlestar/getcom.c,v 1.6.2.1 2001/03/05 11:45:36 kris Exp $ 31 * $DragonFly: src/games/battlestar/getcom.c,v 1.3 2006/08/08 16:47:20 pavalos Exp $ 32 */ 33 34 #include <ctype.h> 35 #include "externs.h" 36 37 char * 38 getcom(char *buf, int size, const char *prompt, const char *error) 39 { 40 for (;;) { 41 fputs(prompt, stdout); 42 if (fgets(buf, size, stdin) == 0) { 43 clearerr(stdin); 44 continue; 45 } 46 while (isspace(*buf)) 47 buf++; 48 if (*buf) 49 break; 50 if (error) 51 puts(error); 52 } 53 return (buf); 54 } 55 56 57 /* 58 * shifts to UPPERCASE if flag > 0, lowercase if flag < 0, 59 * and leaves it unchanged if flag = 0 60 */ 61 char * 62 getword(char *buf1, char *buf2, int flag) 63 { 64 while (isspace(*buf1)) 65 buf1++; 66 if (*buf1 != ',') { 67 if (!*buf1) { 68 *buf2 = 0; 69 return (0); 70 } 71 while (*buf1 && !isspace(*buf1) && *buf1 != ',') 72 if (flag < 0) { 73 if (isupper(*buf1)) 74 *buf2++ = tolower(*buf1++); 75 else 76 *buf2++ = *buf1++; 77 } else if (flag > 0) { 78 if (islower(*buf1)) 79 *buf2++ = toupper(*buf1++); 80 else 81 *buf2++ = *buf1++; 82 } else { 83 *buf2++ = *buf1++; 84 } 85 } else 86 *buf2++ = *buf1++; 87 *buf2 = 0; 88 while (isspace(*buf1)) 89 buf1++; 90 return (*buf1 ? buf1 : NULL); 91 } 92