Function FS_FileIsInPAK

code/qcommon/files.cpp:1692–1740

*/

int	FS_FileIsInPAK(const char *filename ) {
	searchpath_t	*search;
	pack_t			*pak;
	fileInPack_t	*pakFile;
	long			hash = 0;

	FS_AssertInitialised();

	if ( !filename ) {
		Com_Error( ERR_FATAL, "FS_FOpenFileRead: NULL 'filename' parameter passed\n" );
	}

	// qpaths are not supposed to have a leading slash
	if ( filename[0] == '/' || filename[0] == '\\' ) {
		filename++;
	}

	// make absolutely sure that it can't back up the path.
	// The searchpaths do guarantee that something will always
	// be prepended, so we don't need to worry about "c:" or "//limbo"
	if ( strstr( filename, ".." ) || strstr( filename, "::" ) ) {
		return -1;
	}

	//
	// search through the path, one element at a time
	//

	for ( search = fs_searchpaths ; search ; search = search->next ) {
		//
		if (search->pack) {
			hash = FS_HashFileName(filename, search->pack->hashSize);
		}
		// is the element a pak file?
		if ( search->pack && search->pack->hashTable[hash] ) {
			// look through all the pak file elements
			pak = search->pack;
			pakFile = pak->hashTable[hash];
			do {
				// case and separator insensitive comparisons
				if ( !FS_FilenameCompare( pakFile->name, filename ) ) {
					return 1;
				}
				pakFile = pakFile->next;
			} while(pakFile != NULL);
		}
	}
	return -1;
}

/*
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