Make sure that it does not lost number by overflow.

SVN-Revision: 1523

diff --git a/libarchive/archive_read_support_format_iso9660.c b/libarchive/archive_read_support_format_iso9660.c
index 40ded335e82b4cb0fb303c74f2844687c88f5335..07bd9688098269cb4ab58292816df32656bf8645 100644 (file)
--- a/libarchive/archive_read_support_format_iso9660.c
+++ b/libarchive/archive_read_support_format_iso9660.c
@@ -1723,7 +1723,7 @@ register_CE(struct iso9660 *iso9660, int32_t location,
        uint64_t offset;
        int i;
 
-       offset = location * iso9660->logical_block_size;
+       offset = ((uint64_t)location) * (uint64_t)iso9660->logical_block_size;
        if (((file->mode & AE_IFMT) == AE_IFREG &&
            offset >= file->offset) ||
            offset < iso9660->current_position) {