read_index(): fix reading extension size on BE 64-bit archs

On big endian platforms with 8-byte unsigned long, the code reads the
size of the index extension section (which is a 4-byte network byte
order integer) incorrectly.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/read-cache.c b/read-cache.c
index 82a6238b7783ef41896834dae11a528e77f4e447..053bcf19167ccc8b1d04365da244bc0b358831fe 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -1016,7 +1016,7 @@ int read_index_from(struct index_state *istate, const char *path)
                 * extension name (4-byte) and section length
                 * in 4-byte network byte order.
                 */
-               unsigned long extsize;
+               uint32_t extsize;
                memcpy(&extsize, (char *)mmap + src_offset + 4, 4);
                extsize = ntohl(extsize);
                if (read_index_extension(istate,