xnu-1456.1.26.tar.gz

[apple/xnu.git] / bsd / sys / _endian.h

diff --git a/bsd/sys/_endian.h b/bsd/sys/_endian.h
index 67c8fc0c3f412d33e474f868f16e97f9bc97ea1a..3fb0f062fdbf174b7c14a0563b434a5cc477bc9a 100644 (file)
--- a/bsd/sys/_endian.h
+++ b/bsd/sys/_endian.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2004, 2006 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -95,29 +95,45 @@
 /*
  * Macros for network/external number representation conversion.
  */
-#if !defined(__ASSEMBLER__) 
 
-#include <stdint.h>
-#include <libkern/OSByteOrder.h>
- 
+#if defined(lint)
+
 __BEGIN_DECLS
-uint16_t       ntohs(uint16_t);
-uint16_t       htons(uint16_t);
-uint32_t       ntohl(uint32_t);
-uint32_t       htonl(uint32_t);
+__uint16_t     ntohs(__uint16_t);
+__uint16_t     htons(__uint16_t);
+__uint32_t     ntohl(__uint32_t);
+__uint32_t     htonl(__uint32_t);
 __END_DECLS
-#endif /* !defined(__ASSEMBLER__) */
 
-#define ntohs(x)       OSSwapBigToHostInt16(x)
-#define htons(x)       OSSwapHostToBigInt16(x)
+#elif __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN
+
+#define ntohl(x)        ((__uint32_t)(x))
+#define ntohs(x)        ((__uint16_t)(x))
+#define htonl(x)        ((__uint32_t)(x))
+#define htons(x)        ((__uint16_t)(x))
+
+#if     defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
+#define NTOHL(x)        (x)
+#define NTOHS(x)        (x)
+#define HTONL(x)        (x)
+#define HTONS(x)        (x)
+#endif /* defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) */
+
+#else  /* __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN */
+
+#include <libkern/_OSByteOrder.h>
+
+#define ntohs(x)       __DARWIN_OSSwapInt16(x)
+#define htons(x)       __DARWIN_OSSwapInt16(x)
 
-#define ntohl(x)       OSSwapBigToHostInt32(x)
-#define htonl(x)       OSSwapHostToBigInt32(x)
+#define ntohl(x)       __DARWIN_OSSwapInt32(x)
+#define htonl(x)       __DARWIN_OSSwapInt32(x)
 
-#if    defined(KERNEL) || !defined(_POSIX_C_SOURCE)
-#define        NTOHL(x)        (x) = ntohl((u_long)x)
-#define        NTOHS(x)        (x) = ntohs((u_short)x)
-#define        HTONL(x)        (x) = htonl((u_long)x)
-#define        HTONS(x)        (x) = htons((u_short)x)
-#endif /* defined(KERNEL) || !defined(_POSIX_C_SOURCE) */
+#if    defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
+#define        NTOHL(x)        (x) = ntohl((__uint32_t)x)
+#define        NTOHS(x)        (x) = ntohs((__uint16_t)x)
+#define        HTONL(x)        (x) = htonl((__uint32_t)x)
+#define        HTONS(x)        (x) = htons((__uint16_t)x)
+#endif /* defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) */
+#endif /* __DARWIN_BYTE_ORDER */
 #endif /* !_SYS__ENDIAN_H_ */