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 <stdlib.h>
#include "unarchive.h"

/* Find a string in a shell pattern list */
const llist_t *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 *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 that 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	/* 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	#include <stdlib.h>
10	#include "unarchive.h"
11
12	/* Find a string in a shell pattern list */
13	const llist_t find_list_entry(const llist_t list, const char *filename)
14	{
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	const llist_t find_list_entry2(const llist_t list, const char *filename)
28	{
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	/* paranoia is better that buffer overflows */
42	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	}