1 /*- 2 * Copyright (c) 1990, 1993, 1994 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[] = "@(#)misc.c 8.2 (Berkeley) 4/1/94"; 39 #endif /* not lint */ 40 41 #include <sys/types.h> 42 #include <sys/stat.h> 43 44 #include <err.h> 45 #include <errno.h> 46 #include <fts.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 51 #include "find.h" 52 53 /* 54 * brace_subst -- 55 * Replace occurrences of {} in s1 with s2 and return the result string. 56 */ 57 void 58 brace_subst(orig, store, path, len) 59 char *orig, **store, *path; 60 int len; 61 { 62 register int plen; 63 register char ch, *p; 64 65 plen = strlen(path); 66 for (p = *store; (ch = *orig) != '\0'; ++orig) 67 if (ch == '{' && orig[1] == '}') { 68 while ((p - *store) + plen > len) 69 if (!(*store = realloc(*store, len *= 2))) 70 err(1, NULL); 71 memmove(p, path, plen); 72 p += plen; 73 ++orig; 74 } else 75 *p++ = ch; 76 *p = '\0'; 77 } 78 79 /* 80 * queryuser -- 81 * print a message to standard error and then read input from standard 82 * input. If the input is 'y' then 1 is returned. 83 */ 84 int 85 queryuser(argv) 86 register char **argv; 87 { 88 int ch, first, nl; 89 90 (void)fprintf(stderr, "\"%s", *argv); 91 while (*++argv) 92 (void)fprintf(stderr, " %s", *argv); 93 (void)fprintf(stderr, "\"? "); 94 (void)fflush(stderr); 95 96 first = ch = getchar(); 97 for (nl = 0;;) { 98 if (ch == '\n') { 99 nl = 1; 100 break; 101 } 102 if (ch == EOF) 103 break; 104 ch = getchar(); 105 } 106 107 if (!nl) { 108 (void)fprintf(stderr, "\n"); 109 (void)fflush(stderr); 110 } 111 return (first == 'y'); 112 } 113 114 /* 115 * emalloc -- 116 * malloc with error checking. 117 */ 118 void * 119 emalloc(len) 120 u_int len; 121 { 122 void *p; 123 124 if ((p = malloc(len)) == NULL) 125 err(1, NULL); 126 return (p); 127 } 128