1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1990, 1993, 1994 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #if 0 36 static char sccsid[] = "@(#)misc.c 8.2 (Berkeley) 4/1/94"; 37 #else 38 #endif 39 40 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 #include <sys/types.h> 44 #include <sys/stat.h> 45 46 #include <err.h> 47 #include <errno.h> 48 #include <fts.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 53 #include "find.h" 54 55 /* 56 * brace_subst -- 57 * Replace occurrences of {} in s1 with s2 and return the result string. 58 */ 59 void 60 brace_subst(char *orig, char **store, char *path, size_t len) 61 { 62 const char *pastorigend, *p, *q; 63 char *dst; 64 size_t newlen, plen; 65 66 plen = strlen(path); 67 newlen = strlen(orig) + 1; 68 pastorigend = orig + newlen; 69 for (p = orig; (q = strstr(p, "{}")) != NULL; p = q + 2) { 70 if (plen > 2 && newlen + plen - 2 < newlen) 71 errx(2, "brace_subst overflow"); 72 newlen += plen - 2; 73 } 74 if (newlen > len) { 75 *store = reallocf(*store, newlen); 76 if (*store == NULL) 77 err(2, NULL); 78 } 79 dst = *store; 80 for (p = orig; (q = strstr(p, "{}")) != NULL; p = q + 2) { 81 memcpy(dst, p, q - p); 82 dst += q - p; 83 memcpy(dst, path, plen); 84 dst += plen; 85 } 86 memcpy(dst, p, pastorigend - p); 87 } 88 89 /* 90 * queryuser -- 91 * print a message to standard error and then read input from standard 92 * input. If the input is an affirmative response (according to the 93 * current locale) then 1 is returned. 94 */ 95 int 96 queryuser(char *argv[]) 97 { 98 char *p, resp[256]; 99 100 (void)fprintf(stderr, "\"%s", *argv); 101 while (*++argv) 102 (void)fprintf(stderr, " %s", *argv); 103 (void)fprintf(stderr, "\"? "); 104 (void)fflush(stderr); 105 106 if (fgets(resp, sizeof(resp), stdin) == NULL) 107 *resp = '\0'; 108 if ((p = strchr(resp, '\n')) != NULL) 109 *p = '\0'; 110 else { 111 (void)fprintf(stderr, "\n"); 112 (void)fflush(stderr); 113 } 114 return (rpmatch(resp) == 1); 115 } 116