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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)getcom.c 8.1 (Berkeley) 5/31/93 34 * $FreeBSD: src/games/battlestar/getcom.c,v 1.6.2.1 2001/03/05 11:45:36 kris Exp $ 35 * $DragonFly: src/games/battlestar/getcom.c,v 1.3 2006/08/08 16:47:20 pavalos Exp $ 36 */ 37 38 #include <ctype.h> 39 #include "externs.h" 40 41 char * 42 getcom(char *buf, int size, const char *prompt, const char *error) 43 { 44 for (;;) { 45 fputs(prompt, stdout); 46 if (fgets(buf, size, stdin) == 0) { 47 clearerr(stdin); 48 continue; 49 } 50 while (isspace(*buf)) 51 buf++; 52 if (*buf) 53 break; 54 if (error) 55 puts(error); 56 } 57 return (buf); 58 } 59 60 61 /* 62 * shifts to UPPERCASE if flag > 0, lowercase if flag < 0, 63 * and leaves it unchanged if flag = 0 64 */ 65 char * 66 getword(char *buf1, char *buf2, int flag) 67 { 68 while (isspace(*buf1)) 69 buf1++; 70 if (*buf1 != ',') { 71 if (!*buf1) { 72 *buf2 = 0; 73 return (0); 74 } 75 while (*buf1 && !isspace(*buf1) && *buf1 != ',') 76 if (flag < 0) 77 if (isupper(*buf1)) 78 *buf2++ = tolower(*buf1++); 79 else 80 *buf2++ = *buf1++; 81 else if (flag > 0) 82 if (islower(*buf1)) 83 *buf2++ = toupper(*buf1++); 84 else 85 *buf2++ = *buf1++; 86 else 87 *buf2++ = *buf1++; 88 } else 89 *buf2++ = *buf1++; 90 *buf2 = 0; 91 while (isspace(*buf1)) 92 buf1++; 93 return (*buf1 ? buf1 : 0); 94 } 95