2 * Copyright (c) 1990, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Cimarron D. Taylor of the University of California, Berkeley.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 static char sccsid[] = "@(#)misc.c 8.2 (Berkeley) 4/1/94";
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
43 #include <sys/types.h>
57 * Replace occurrences of {} in s1 with s2 and return the result string.
60 brace_subst(char *orig, char **store, char *path, size_t len)
62 const char *pastorigend, *p, *q;
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");
75 *store = reallocf(*store, newlen);
80 for (p = orig; (q = strstr(p, "{}")) != NULL; p = q + 2) {
81 memcpy(dst, p, q - p);
83 memcpy(dst, path, plen);
86 memcpy(dst, p, pastorigend - p);
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.
96 queryuser(char *argv[])
100 (void)fprintf(stderr, "\"%s", *argv);
102 (void)fprintf(stderr, " %s", *argv);
103 (void)fprintf(stderr, "\"? ");
104 (void)fflush(stderr);
106 if (fgets(resp, sizeof(resp), stdin) == NULL)
108 if ((p = strchr(resp, '\n')) != NULL)
111 (void)fprintf(stderr, "\n");
112 (void)fflush(stderr);
114 return (rpmatch(resp) == 1);