Multiple code fixes and optimizations

archive_read_support_format_rar5.c:
  Bitfield int -> signed int

Archive_write_set_format_iso9660.c:
  Bitfield int -> signed int

archive_write_set_format_xar.c:
  Bitfield int -> signed int

archive_write_set_format_7zip.c:
  Bitfield int -> signed int

archive_read_support_format_xar.c
  Remove useless comparsion

archive_read_support_format_rar.c:
  Fix invalid nested loop break.
  Comment out dead code sections.
  Simplify size comparsions of lensymbol and offsymbol.

archive_read_support_filter_uu.c:
  Remove useless comparsions

archive_read_disk_posix.c:
  Remove useless do-while-zero

Found by LGTM.com code analysis

1 files changed, 7 insertions, 7 deletions

diff --git a/libarchive/archive_write_set_format_iso9660.c b/libarchive/archive_write_set_format_iso9660.c
index cacbdde7..e3020cc9 100644
--- a/libarchive/archive_write_set_format_iso9660.c
+++ b/libarchive/archive_write_set_format_iso9660.c
@@ -289,12 +289,12 @@ struct isoent {
 		struct extr_rec	*current;
 	}			 extr_rec_list;
 
-	int			 virtual:1;
+	signed int		 virtual:1;
 	/* If set to one, this file type is a directory.
 	 * A convenience flag to be used as
 	 * "archive_entry_filetype(isoent->file->entry) == AE_IFDIR".
 	 */
-	int			 dir:1;
+	signed int		 dir:1;
 };
 
 struct hardlink {
@@ -755,9 +755,9 @@ struct iso9660 {
 
 	/* Used for making zisofs. */
 	struct {
-		int		 detect_magic:1;
-		int		 making:1;
-		int		 allzero:1;
+		signed int	 detect_magic:1;
+		signed int	 making:1;
+		signed int	 allzero:1;
 		unsigned char	 magic_buffer[64];
 		int		 magic_cnt;
 
@@ -7801,8 +7801,8 @@ struct zisofs_extract {
 	uint64_t	 pz_uncompressed_size;
 	size_t		 uncompressed_buffer_size;
 
-	int		 initialized:1;
-	int		 header_passed:1;
+	signed int	 initialized:1;
+	signed int	 header_passed:1;
 
 	uint32_t	 pz_offset;
 	unsigned char	*block_pointers;