1 /* $OpenBSD: getcom.c,v 1.13 2006/10/10 21:38:16 cloder Exp $ */ 2 /* $NetBSD: getcom.c,v 1.3 1995/03/21 15:07:30 cgd Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 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 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)getcom.c 8.1 (Berkeley) 5/31/93"; 36 #else 37 static char rcsid[] = "$OpenBSD: getcom.c,v 1.13 2006/10/10 21:38:16 cloder Exp $"; 38 #endif 39 #endif /* not lint */ 40 41 #include "extern.h" 42 43 char * 44 getcom(char *buf, int size, const char *prompt, const char *error) 45 { 46 for (;;) { 47 fputs(prompt, stdout); 48 if (fgets(buf, size, stdin) == NULL) { 49 if (feof(stdin)) 50 die(0); 51 clearerr(stdin); 52 continue; 53 } 54 while (isspace(*buf)) 55 buf++; 56 if (*buf) 57 break; 58 if (error) 59 puts(error); 60 } 61 /* If we didn't get to the end of the line, don't read it in next time */ 62 if (buf[strlen(buf) - 1] != '\n') { 63 int i; 64 while ((i = getchar()) != '\n' && i != EOF) 65 ; 66 } 67 return (buf); 68 } 69 70 71 /* 72 * shifts to UPPERCASE if flag > 0, lowercase if flag < 0, 73 * and leaves it unchanged if flag = 0 74 */ 75 char * 76 getword(char *buf1, char *buf2, int flag) 77 { 78 int cnt; 79 80 cnt = 1; 81 while (isspace(*buf1)) 82 buf1++; 83 if (*buf1 != ',' && *buf1 != '.') { 84 if (!*buf1) { 85 *buf2 = '\0'; 86 return (0); 87 } 88 while (cnt < WORDLEN && *buf1 && !isspace(*buf1) && 89 *buf1 != ',' && *buf1 != '.') 90 if (flag < 0) { 91 if (isupper(*buf1)) { 92 *buf2++ = tolower(*buf1++); 93 cnt++; 94 } else { 95 *buf2++ = *buf1++; 96 cnt++; 97 } 98 } else if (flag > 0) { 99 if (islower(*buf1)) { 100 *buf2++ = toupper(*buf1++); 101 cnt++; 102 } else { 103 *buf2++ = *buf1++; 104 cnt++; 105 } 106 } else { 107 *buf2++ = *buf1++; 108 cnt++; 109 } 110 if (cnt == WORDLEN) 111 while (*buf1 && !isspace(*buf1)) 112 buf1++; 113 } else 114 *buf2++ = *buf1++; 115 *buf2 = '\0'; 116 while (isspace(*buf1)) 117 buf1++; 118 return (*buf1 ? buf1 : NULL); 119 } 120