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[git.git] / sha1_file.c

diff --git a/sha1_file.c b/sha1_file.c
index aa09b46..58edec0 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -864,7 +864,7 @@ void packed_object_info_detail(struct pack_entry *e,
                               char *type,
                               unsigned long *size,
                               unsigned long *store_size,
-                              int *delta_chain_length,
+                              unsigned int *delta_chain_length,
                               unsigned char *base_sha1)
 {
        struct packed_git *p = e->p;
@@ -878,7 +878,7 @@ void packed_object_info_detail(struct pack_entry *e,
        if (kind != OBJ_DELTA)
                *delta_chain_length = 0;
        else {
-               int chain_length = 0;
+               unsigned int chain_length = 0;
                memcpy(base_sha1, pack, 20);
                do {
                        struct pack_entry base_ent;
@@ -973,6 +973,16 @@ static void *unpack_delta_entry(unsigned char *base_sha1,
 
        if (left < 20)
                die("truncated pack file");
+
+       /* The base entry _must_ be in the same pack */
+       if (!find_pack_entry_one(base_sha1, &base_ent, p))
+               die("failed to find delta-pack base object %s",
+                   sha1_to_hex(base_sha1));
+       base = unpack_entry_gently(&base_ent, type, &base_size);
+       if (!base)
+               die("failed to read delta-pack base object %s",
+                   sha1_to_hex(base_sha1));
+
        data = base_sha1 + 20;
        data_size = left - 20;
        delta_data = xmalloc(delta_size);
@@ -990,14 +1000,6 @@ static void *unpack_delta_entry(unsigned char *base_sha1,
        if ((st != Z_STREAM_END) || stream.total_out != delta_size)
                die("delta data unpack failed");
 
-       /* The base entry _must_ be in the same pack */
-       if (!find_pack_entry_one(base_sha1, &base_ent, p))
-               die("failed to find delta-pack base object %s",
-                   sha1_to_hex(base_sha1));
-       base = unpack_entry_gently(&base_ent, type, &base_size);
-       if (!base)
-               die("failed to read delta-pack base object %s",
-                   sha1_to_hex(base_sha1));
        result = patch_delta(base, base_size,
                             delta_data, delta_size,
                             &result_size);