sha1-file: add a constant for hash block size

diff --git a/sha1-file.c b/sha1-file.c
index a4367b8f044c6e9254d2a253149187bdb2be6dd2..9aadaf0c8d657e388a6c7a8ad4f66ac2d9157dec 100644 (file)
--- a/sha1-file.c
+++ b/sha1-file.c
@@ -90,6 +90,7 @@ const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = {
                0x00000000,
                0,
                0,
+               0,
                git_hash_unknown_init,
                git_hash_unknown_update,
                git_hash_unknown_final,
@@ -97,11 +98,12 @@ const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = {
                NULL,
        },
        {
-               "sha-1",
+               "sha1",
                /* "sha1", big-endian */
                0x73686131,
                GIT_SHA1_RAWSZ,
                GIT_SHA1_HEXSZ,
+               GIT_SHA1_BLKSZ,
                git_hash_sha1_init,
                git_hash_sha1_update,
                git_hash_sha1_final,
@@ -122,6 +124,27 @@ const char *empty_blob_oid_hex(void)
        return oid_to_hex_r(buf, the_hash_algo->empty_blob);
 }
 
+int hash_algo_by_name(const char *name)
+{
+       int i;
+       if (!name)
+               return GIT_HASH_UNKNOWN;
+       for (i = 1; i < GIT_HASH_NALGOS; i++)
+               if (!strcmp(name, hash_algos[i].name))
+                       return i;
+       return GIT_HASH_UNKNOWN;
+}
+
+int hash_algo_by_id(uint32_t format_id)
+{
+       int i;
+       for (i = 1; i < GIT_HASH_NALGOS; i++)
+               if (format_id == hash_algos[i].format_id)
+                       return i;
+       return GIT_HASH_UNKNOWN;
+}
+
+
 /*
  * This is meant to hold a *small* number of objects that you would
  * want read_sha1_file() to be able to return, but yet you do not want