rename archival/libunarchive -> archival/libarchive; move bz/ into it

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

archival/libarchive/find_list_entry.c

@@ -0,0 +1,54 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Copyright (C) 2002 by Glenn McGrath
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+#include <fnmatch.h>
+#include "libbb.h"
+#include "archive.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;
+}