| 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 | } |