2 * Copyright (c) 1995 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
3 * Copyright (c) 1989, 1993
4 * The Regents of the University of California. All rights reserved.
6 * This code is derived from software contributed to Berkeley by
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * $FreeBSD: src/usr.bin/locate/locate/util.c,v 1.6.2.1 2001/12/20 04:21:48 mikeh Exp $
44 #include <sys/param.h>
49 char **colon __P((char **, char*, char*));
50 char *patprep __P((char *));
51 void print_matches __P((u_int));
52 u_char *tolower_word __P((u_char *));
53 int getwm __P((caddr_t));
54 int getwf __P((FILE *));
55 int check_bigram_char __P((int));
58 * Validate bigram chars. If the test failed the database is corrupt
59 * or the database is obviously not a locate database.
65 /* legal bigram: 0, ASCII_MIN ... ASCII_MAX */
67 (ch >= ASCII_MIN && ch <= ASCII_MAX))
71 "locate database header corrupt, bigram char outside 0, %d-%d: %d",
72 ASCII_MIN, ASCII_MAX, ch);
76 /* split a colon separated string into a char vector
78 * "bla:foo" -> {"foo", "bla"}
79 * "bla:" -> {"foo", dot}
88 char *dot; /* default for single ':' */
95 if ((dbv = malloc(sizeof(char **))) == NULL)
102 warnx("empty database name, ignored");
106 /* length of string vector */
107 for(vlen = 0, pv = dbv; *pv != NULL; pv++, vlen++);
109 for (ch = c = path; ; ch++) {
111 (!*ch && !(*(ch - 1) == ':' && ch == 1+ path))) {
112 /* single colon -> dot */
118 if ((p = malloc(sizeof(char) * (slen + 1)))
124 /* increase dbv with element p */
125 if ((dbv = realloc(dbv, sizeof(char **) * (vlen + 2)))
129 *(dbv + ++vlen) = NULL;
139 print_matches(counter)
142 (void)printf("%d\n", counter);
147 * extract last glob-free subpattern in name for fast pre-match; prepend
148 * '\0' for backwards match; return end of new pattern
150 static char globfree[100];
156 register char *endmark, *p, *subp;
159 *subp++ = '\0'; /* set first element to '\0' */
160 p = name + strlen(name) - 1;
162 /* skip trailing metacharacters */
163 for (; p >= name; p--)
164 if (index(LOCATE_REG, *p) == NULL)
168 * check if maybe we are in a character class
174 (index(p, '[') != NULL || index(p, ']') != NULL)) {
175 for (p = name; *p != '\0'; p++)
176 if (*p == ']' || *p == '[')
181 * cannot find a non-meta character, give up
185 if (p >= name && index(LOCATE_REG, *p) != NULL)
190 /* only meta chars: "???", force '/' search */
194 for (endmark = p; p >= name; p--)
195 if (index(LOCATE_REG, *p) != NULL)
198 (p <= endmark) && subp < (globfree + sizeof(globfree));)
212 for(p = word; *p != '\0'; p++)
220 * Read integer from mmap pointer.
221 * Essential a simple ``return *(int *)p'' but avoid sigbus
222 * for integer alignment (SunOS 4.x, 5.x).
224 * Convert network byte order to host byte order if neccessary.
225 * So we can read on FreeBSD/i386 (little endian) a locate database
226 * which was built on SunOS/sparc (big endian).
233 static char buf[INTSIZE];
236 for (i = 0; i < INTSIZE; i++)
241 if (i > MAXPATHLEN || i < -(MAXPATHLEN)) {
243 if (i > MAXPATHLEN || i < -(MAXPATHLEN))
244 errx(1, "integer out of +-MAXPATHLEN (%d): %d",
245 MAXPATHLEN, abs(i) < abs(htonl(i)) ? i : htonl(i));
251 * Read integer from stream.
253 * Convert network byte order to host byte order if neccessary.
254 * So we can read on FreeBSD/i386 (little endian) a locate database
255 * which was built on SunOS/sparc (big endian).
266 if (word > MAXPATHLEN || word < -(MAXPATHLEN)) {
268 if (word > MAXPATHLEN || word < -(MAXPATHLEN))
269 errx(1, "integer out of +-MAXPATHLEN (%d): %d",
270 MAXPATHLEN, abs(word) < abs(htonl(word)) ? word :