From a2ce0a752600a44979da94b19aa1b367c6850bd7 Mon Sep 17 00:00:00 2001 From: "brian m. carlson" Date: Wed, 14 Nov 2018 04:09:33 +0000 Subject: sha1-file: add a constant for hash block size There is one place we need the hash algorithm block size: the HMAC code for push certs. Expose this constant in struct git_hash_algo and expose values for SHA-1 and for the largest value of any hash. Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano --- cache.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'cache.h') diff --git a/cache.h b/cache.h index 85a8e7b101..5d969727f9 100644 --- a/cache.h +++ b/cache.h @@ -45,10 +45,14 @@ unsigned long git_deflate_bound(git_zstream *, unsigned long); /* The length in bytes and in hex digits of an object name (SHA-1 value). */ #define GIT_SHA1_RAWSZ 20 #define GIT_SHA1_HEXSZ (2 * GIT_SHA1_RAWSZ) +/* The block size of SHA-1. */ +#define GIT_SHA1_BLKSZ 64 /* The length in byte and in hex digits of the largest possible hash value. */ #define GIT_MAX_RAWSZ GIT_SHA1_RAWSZ #define GIT_MAX_HEXSZ GIT_SHA1_HEXSZ +/* The largest possible block size for any supported hash. */ +#define GIT_MAX_BLKSZ GIT_SHA1_BLKSZ struct object_id { unsigned char hash[GIT_MAX_RAWSZ]; -- cgit v1.3