1 /* $NetBSD: misc.c,v 1.5 1997/01/09 20:19:15 tls Exp $ */ 2 3 /*- 4 * Copyright (c) 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Cimarron D. Taylor of the University of California, Berkeley. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 */ 38 39 #ifndef lint 40 /*static char sccsid[] = "from: @(#)misc.c 8.1 (Berkeley) 6/6/93";*/ 41 static char rcsid[] = "$NetBSD: misc.c,v 1.5 1997/01/09 20:19:15 tls Exp $"; 42 #endif /* not lint */ 43 44 #include <sys/types.h> 45 #include <sys/stat.h> 46 47 #include <err.h> 48 #include <errno.h> 49 #include <fts.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 54 #include "find.h" 55 56 /* 57 * brace_subst -- 58 * Replace occurrences of {} in orig with path, and place it in a malloced 59 * area of memory set in store. 60 */ 61 void 62 brace_subst(orig, store, path, len) 63 char *orig, **store, *path; 64 int len; 65 { 66 register int plen; 67 register char ch, *p; 68 69 plen = strlen(path); 70 for (p = *store; ch = *orig; ++orig) 71 if (ch == '{' && orig[1] == '}') { 72 while ((p - *store) + plen > len) 73 if (!(*store = realloc(*store, len *= 2))) 74 err(1, NULL); 75 memmove(p, path, plen); 76 p += plen; 77 ++orig; 78 } else 79 *p++ = ch; 80 *p = '\0'; 81 } 82 83 /* 84 * queryuser -- 85 * print a message to standard error and then read input from standard 86 * input. If the input is 'y' then 1 is returned. 87 */ 88 int 89 queryuser(argv) 90 register char **argv; 91 { 92 int ch, first, nl; 93 94 (void)fprintf(stderr, "\"%s", *argv); 95 while (*++argv) 96 (void)fprintf(stderr, " %s", *argv); 97 (void)fprintf(stderr, "\"? "); 98 (void)fflush(stderr); 99 100 first = ch = getchar(); 101 for (nl = 0;;) { 102 if (ch == '\n') { 103 nl = 1; 104 break; 105 } 106 if (ch == EOF) 107 break; 108 ch = getchar(); 109 } 110 111 if (!nl) { 112 (void)fprintf(stderr, "\n"); 113 (void)fflush(stderr); 114 } 115 return (first == 'y'); 116 } 117 118 /* 119 * emalloc -- 120 * malloc with error checking. 121 */ 122 void * 123 emalloc(len) 124 u_int len; 125 { 126 void *p; 127 128 if (p = malloc(len)) 129 return (p); 130 err(1, NULL); 131 } 132