archival/libunarchive/find_list_entry.c

/* vi: set sw=4 ts=4: */
/*
 * Copyright (C) 2002 by Glenn McGrath
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

#include <fnmatch.h>
#include "libbb.h"
#include "unarchive.h"

/* Find a string in a shell pattern list */
const llist_t* FAST_FUNC find_list_entry(const llist_t *list, const char *filename)
{
	while (list) {
		if (fnmatch(list->data, filename, 0) == 0) {
			return list;
		}
		list = list->link;
	}
	return NULL;
}

/* Same, but compares only path components present in pattern
 * (extra trailing path components in filename are assumed to match)
 */
const llist_t* FAST_FUNC find_list_entry2(const llist_t *list, const char *filename)
{
	char buf[PATH_MAX];
	int pattern_slash_cnt;
	const char *c;
	char *d;

	while (list) {
		c = list->data;
		pattern_slash_cnt = 0;
		while (*c)
			if (*c++ == '/') pattern_slash_cnt++;
		c = filename;
		d = buf;
		/* paranoia is better than buffer overflows */
		while (*c && d != buf + sizeof(buf)-1) {
			if (*c == '/' && --pattern_slash_cnt < 0)
				break;
			*d++ = *c++;
		}
		*d = '\0';
		if (fnmatch(list->data, buf, 0) == 0) {
			return list;
		}
		list = list->link;
	}
	return NULL;
}
1	niro	532	/* vi: set sw=4 ts=4: */
2			/*
3			* Copyright (C) 2002 by Glenn McGrath
4			*
5			* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
6			*/
7
8			#include <fnmatch.h>
9	niro	816	#include "libbb.h"
10	niro	532	#include "unarchive.h"
11
12			/* Find a string in a shell pattern list */
13	niro	816	const llist_t* FAST_FUNC find_list_entry(const llist_t list, const char filename)
14	niro	532	{
15			while (list) {
16			if (fnmatch(list->data, filename, 0) == 0) {
17			return list;
18			}
19			list = list->link;
20			}
21			return NULL;
22			}
23
24			/* Same, but compares only path components present in pattern
25			* (extra trailing path components in filename are assumed to match)
26			*/
27	niro	816	const llist_t* FAST_FUNC find_list_entry2(const llist_t list, const char filename)
28	niro	532	{
29			char buf[PATH_MAX];
30			int pattern_slash_cnt;
31			const char *c;
32			char *d;
33
34			while (list) {
35			c = list->data;
36			pattern_slash_cnt = 0;
37			while (*c)
38			if (*c++ == '/') pattern_slash_cnt++;
39			c = filename;
40			d = buf;
41	niro	816	/* paranoia is better than buffer overflows */
42	niro	532	while (*c && d != buf + sizeof(buf)-1) {
43			if (*c == '/' && --pattern_slash_cnt < 0)
44			break;
45			d++ = c++;
46			}
47			*d = '\0';
48			if (fnmatch(list->data, buf, 0) == 0) {
49			return list;
50			}
51			list = list->link;
52			}
53			return NULL;
54			}