2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1990, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * Cimarron D. Taylor of the University of California, Berkeley.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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
36 static char sccsid[] = "@(#)misc.c 8.2 (Berkeley) 4/1/94";
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
42 #include <sys/types.h>
56 * Replace occurrences of {} in s1 with s2 and return the result string.
59 brace_subst(char *orig, char **store, char *path, size_t len)
61 const char *pastorigend, *p, *q;
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");
74 *store = reallocf(*store, newlen);
79 for (p = orig; (q = strstr(p, "{}")) != NULL; p = q + 2) {
80 memcpy(dst, p, q - p);
82 memcpy(dst, path, plen);
85 memcpy(dst, p, pastorigend - p);
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.
95 queryuser(char *argv[])
99 (void)fprintf(stderr, "\"%s", *argv);
101 (void)fprintf(stderr, " %s", *argv);
102 (void)fprintf(stderr, "\"? ");
103 (void)fflush(stderr);
105 if (fgets(resp, sizeof(resp), stdin) == NULL)
107 if ((p = strchr(resp, '\n')) != NULL)
110 (void)fprintf(stderr, "\n");
111 (void)fflush(stderr);
113 return (rpmatch(resp) == 1);