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 * @(#)misc.c 8.2 (Berkeley) 4/1/94
37 */
38
39#include <sys/cdefs.h>
40__FBSDID("$FreeBSD: head/usr.bin/find/misc.c 207677 2010-05-05 21:24:18Z delphij $");
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 */
58void
59brace_subst(char *orig, char **store, char *path, int len)
60{
61 int plen;
62 char ch, *p;
63
64 plen = strlen(path);
65 for (p = *store; (ch = *orig) != '\0'; ++orig)
66 if (ch == '{' && orig[1] == '}') {
67 while ((p - *store) + plen > len)
68 if (!(*store = realloc(*store, len *= 2)))
69 err(1, NULL);
70 memmove(p, path, plen);
71 p += plen;
72 ++orig;
73 } else
74 *p++ = ch;
75 *p = '\0';
76}
77
78/*
79 * queryuser --
80 * print a message to standard error and then read input from standard
81 * input. If the input is an affirmative response (according to the
82 * current locale) then 1 is returned.
83 */
84int
85queryuser(char *argv[])
86{
87 char *p, resp[256];
88
89 (void)fprintf(stderr, "\"%s", *argv);
90 while (*++argv)
91 (void)fprintf(stderr, " %s", *argv);
92 (void)fprintf(stderr, "\"? ");
93 (void)fflush(stderr);
94
95 if (fgets(resp, sizeof(resp), stdin) == NULL)
96 *resp = '\0';
97 if ((p = strchr(resp, '\n')) != NULL)
98 *p = '\0';
99 else {
100 (void)fprintf(stderr, "\n");
101 (void)fflush(stderr);
102 }
103 return (rpmatch(resp) == 1);
104}