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Diffstat (limited to 'sha1_file.c')
-rw-r--r--sha1_file.c47
1 files changed, 11 insertions, 36 deletions
diff --git a/sha1_file.c b/sha1_file.c
index be991ed..12d2ef2 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -972,7 +972,7 @@ void *map_sha1_file(const unsigned char *sha1, unsigned long *size)
return map;
}
-int legacy_loose_object(unsigned char *map)
+static int legacy_loose_object(unsigned char *map)
{
unsigned int word;
@@ -1034,6 +1034,14 @@ static int unpack_sha1_header(z_stream *stream, unsigned char *map, unsigned lon
return inflate(stream, 0);
}
+
+ /*
+ * There used to be a second loose object header format which
+ * was meant to mimic the in-pack format, allowing for direct
+ * copy of the object data. This format turned up not to be
+ * really worth it and we don't write it any longer. But we
+ * can still read it.
+ */
used = unpack_object_header_gently(map, mapsize, &type, &size);
if (!used || !valid_loose_object_type[type])
return -1;
@@ -1962,40 +1970,6 @@ static int write_buffer(int fd, const void *buf, size_t len)
return 0;
}
-static int write_binary_header(unsigned char *hdr, enum object_type type, unsigned long len)
-{
- int hdr_len;
- unsigned char c;
-
- c = (type << 4) | (len & 15);
- len >>= 4;
- hdr_len = 1;
- while (len) {
- *hdr++ = c | 0x80;
- hdr_len++;
- c = (len & 0x7f);
- len >>= 7;
- }
- *hdr = c;
- return hdr_len;
-}
-
-static void setup_object_header(z_stream *stream, const char *type, unsigned long len)
-{
- int obj_type, hdrlen;
-
- if (use_legacy_headers) {
- while (deflate(stream, 0) == Z_OK)
- /* nothing */;
- return;
- }
- obj_type = type_from_string(type);
- hdrlen = write_binary_header(stream->next_out, obj_type, len);
- stream->total_out = hdrlen;
- stream->next_out += hdrlen;
- stream->avail_out -= hdrlen;
-}
-
int hash_sha1_file(const void *buf, unsigned long len, const char *type,
unsigned char *sha1)
{
@@ -2062,7 +2036,8 @@ int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned cha
/* First header.. */
stream.next_in = (unsigned char *)hdr;
stream.avail_in = hdrlen;
- setup_object_header(&stream, type, len);
+ while (deflate(&stream, 0) == Z_OK)
+ /* nothing */;
/* Then the data itself.. */
stream.next_in = buf;