Add a new get_be64 macro to enable 64 bit endian conversions on memory
that may or may not be aligned.
Signed-off-by: Ben Peart <benpeart@xxxxxxxxxxxxx>
---
compat/bswap.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/compat/bswap.h b/compat/bswap.h
index d47c003544..f89fe7f4b5 100644
--- a/compat/bswap.h
+++ b/compat/bswap.h
@@ -158,6 +158,7 @@ static inline uint64_t git_bswap64(uint64_t x)
#define get_be16(p) ntohs(*(unsigned short *)(p))
#define get_be32(p) ntohl(*(unsigned int *)(p))
+#define get_be64(p) ntohll(*(uint64_t *)(p))
#define put_be32(p, v) do { *(unsigned int *)(p) = htonl(v); } while (0)
#else
@@ -170,6 +171,9 @@ static inline uint64_t git_bswap64(uint64_t x)
(*((unsigned char *)(p) + 1) << 16) | \
(*((unsigned char *)(p) + 2) << 8) | \
(*((unsigned char *)(p) + 3) << 0) )
+#define get_be64(p) ( \
+ ((uint64_t)get_be32((unsigned char *)(p) + 0) << 32) | \
+ ((uint64_t)get_be32((unsigned char *)(p) + 4) << 0)
#define put_be32(p, v) do { \
unsigned int __v = (v); \
*((unsigned char *)(p) + 0) = __v >> 24; \
--
2.13.0