libtar: some minor cleanups

 - Use is_memory_zero from libutil
 - Move checksum update function to tar writer code
 - Move checksum verify function to tar reader code
 - Only export the function to compute the checksum

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 1 insertions, 3 deletions

diff --git a/include/tar/format.h b/include/tar/format.h
index 53a4665..c3e372d 100644
--- a/include/tar/format.h
+++ b/include/tar/format.h
@@ -94,9 +94,7 @@ int read_octal(const char *str, int digits, sqfs_u64 *out);
 
 int read_number(const char *str, int digits, sqfs_u64 *out);
 
-void update_checksum(tar_header_t *hdr);
-
-bool is_checksum_valid(const tar_header_t *hdr);
+unsigned int tar_compute_checksum(const tar_header_t *hdr);
 
 #ifdef __cplusplus
 }