1 /*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Cimarron D. Taylor of the University of California, Berkeley. 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. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef lint 38 /*static char sccsid[] = "from: @(#)misc.c 8.1 (Berkeley) 6/6/93";*/ 39 static char rcsid[] = "$Id: misc.c,v 1.4 1996/06/23 11:16:39 mrg Exp $"; 40 #endif /* not lint */ 41 42 #include <sys/types.h> 43 #include <sys/stat.h> 44 45 #include <err.h> 46 #include <errno.h> 47 #include <fts.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 52 #include "find.h" 53 54 /* 55 * brace_subst -- 56 * Replace occurrences of {} in orig with path, and place it in a malloced 57 * area of memory set in store. 58 */ 59 void 60 brace_subst(orig, store, path, len) 61 char *orig, **store, *path; 62 int len; 63 { 64 register int plen; 65 register char ch, *p; 66 67 plen = strlen(path); 68 for (p = *store; ch = *orig; ++orig) 69 if (ch == '{' && orig[1] == '}') { 70 while ((p - *store) + plen > len) 71 if (!(*store = realloc(*store, len *= 2))) 72 err(1, NULL); 73 memmove(p, path, plen); 74 p += plen; 75 ++orig; 76 } else 77 *p++ = ch; 78 *p = '\0'; 79 } 80 81 /* 82 * queryuser -- 83 * print a message to standard error and then read input from standard 84 * input. If the input is 'y' then 1 is returned. 85 */ 86 int 87 queryuser(argv) 88 register char **argv; 89 { 90 int ch, first, nl; 91 92 (void)fprintf(stderr, "\"%s", *argv); 93 while (*++argv) 94 (void)fprintf(stderr, " %s", *argv); 95 (void)fprintf(stderr, "\"? "); 96 (void)fflush(stderr); 97 98 first = ch = getchar(); 99 for (nl = 0;;) { 100 if (ch == '\n') { 101 nl = 1; 102 break; 103 } 104 if (ch == EOF) 105 break; 106 ch = getchar(); 107 } 108 109 if (!nl) { 110 (void)fprintf(stderr, "\n"); 111 (void)fflush(stderr); 112 } 113 return (first == 'y'); 114 } 115 116 /* 117 * emalloc -- 118 * malloc with error checking. 119 */ 120 void * 121 emalloc(len) 122 u_int len; 123 { 124 void *p; 125 126 if (p = malloc(len)) 127 return (p); 128 err(1, NULL); 129 } 130