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 #endif 38 39 #include <sys/cdefs.h> 40 __FBSDID("$FreeBSD$"); 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 s1 with s2 and return the result string. 57 */ 58 void 59 brace_subst(char *orig, char **store, char *path, size_t len) 60 { 61 const char *pastorigend, *p, *q; 62 char *dst; 63 size_t newlen, plen; 64 65 plen = strlen(path); 66 newlen = strlen(orig) + 1; 67 pastorigend = orig + newlen; 68 for (p = orig; (q = strstr(p, "{}")) != NULL; p = q + 2) { 69 if (plen > 2 && newlen + plen - 2 < newlen) 70 errx(2, "brace_subst overflow"); 71 newlen += plen - 2; 72 } 73 if (newlen > len) { 74 *store = reallocf(*store, newlen); 75 if (*store == NULL) 76 err(2, NULL); 77 } 78 dst = *store; 79 for (p = orig; (q = strstr(p, "{}")) != NULL; p = q + 2) { 80 memcpy(dst, p, q - p); 81 dst += q - p; 82 memcpy(dst, path, plen); 83 dst += plen; 84 } 85 memcpy(dst, p, pastorigend - p); 86 } 87 88 /* 89 * queryuser -- 90 * print a message to standard error and then read input from standard 91 * input. If the input is an affirmative response (according to the 92 * current locale) then 1 is returned. 93 */ 94 int 95 queryuser(char *argv[]) 96 { 97 char *p, resp[256]; 98 99 (void)fprintf(stderr, "\"%s", *argv); 100 while (*++argv) 101 (void)fprintf(stderr, " %s", *argv); 102 (void)fprintf(stderr, "\"? "); 103 (void)fflush(stderr); 104 105 if (fgets(resp, sizeof(resp), stdin) == NULL) 106 *resp = '\0'; 107 if ((p = strchr(resp, '\n')) != NULL) 108 *p = '\0'; 109 else { 110 (void)fprintf(stderr, "\n"); 111 (void)fflush(stderr); 112 } 113 return (rpmatch(resp) == 1); 114 } 115