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authorMike Barcroft <mike@FreeBSD.org>2002-04-26 22:48:23 +0000
committerMike Barcroft <mike@FreeBSD.org>2002-04-26 22:48:23 +0000
commita30d4b3270b3a065096f171c369b8e9f03b2e3d5 (patch)
tree115cd24c3ccb3e000a42bda8da856032a6fe36b5 /sys/sys/endian.h
parentcbd53e95fe848544e46bcef04e75112cdf35f9f1 (diff)
downloadsrc-a30d4b3270b3a065096f171c369b8e9f03b2e3d5.tar.gz
src-a30d4b3270b3a065096f171c369b8e9f03b2e3d5.zip
Move the new byte order function prototypes from <sys/param.h> to
<sys/endian.h>. This puts us in line with NetBSD and OpenBSD.
Notes
Notes: svn path=/head/; revision=95533
Diffstat (limited to 'sys/sys/endian.h')
-rw-r--r--sys/sys/endian.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/sys/sys/endian.h b/sys/sys/endian.h
new file mode 100644
index 000000000000..0675457e4632
--- /dev/null
+++ b/sys/sys/endian.h
@@ -0,0 +1,76 @@
+/*-
+ * Copyright (c) 2002 Thomas Moestl <tmm@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _SYS_ENDIAN_H_
+#define _SYS_ENDIAN_H_
+
+#include <sys/cdefs.h>
+#include <machine/endian.h>
+
+/*
+ * General byte order swapping functions.
+ */
+#define bswap16(x) __bswap16(x)
+#define bswap32(x) __bswap32(x)
+#define bswap64(x) __bswap64(x)
+
+/*
+ * Host to big endian, host to little endian, big endian to host, and little
+ * endian to host byte order functions as detailed in byteorder(9).
+ */
+#if _BYTE_ORDER == _LITTLE_ENDIAN
+#define htobe16(x) bswap16((x))
+#define htobe32(x) bswap32((x))
+#define htobe64(x) bswap64((x))
+#define htole16(x) ((__uint16_t)(x))
+#define htole32(x) ((__uint32_t)(x))
+#define htole64(x) ((__uint64_t)(x))
+
+#define be16toh(x) bswap16((x))
+#define be32toh(x) bswap32((x))
+#define be64toh(x) bswap64((x))
+#define le16toh(x) ((__uint16_t)(x))
+#define le32toh(x) ((__uint32_t)(x))
+#define le64toh(x) ((__uint64_t)(x))
+#else /* _BYTE_ORDER != _LITTLE_ENDIAN */
+#define htobe16(x) ((__uint16_t)(x))
+#define htobe32(x) ((__uint32_t)(x))
+#define htobe64(x) ((__uint64_t)(x))
+#define htole16(x) bswap16((x))
+#define htole32(x) bswap32((x))
+#define htole64(x) bswap64((x))
+
+#define be16toh(x) ((__uint16_t)(x))
+#define be32toh(x) ((__uint32_t)(x))
+#define be64toh(x) ((__uint64_t)(x))
+#define le16toh(x) bswap16((x))
+#define le32toh(x) bswap32((x))
+#define le64toh(x) bswap64((x))
+#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */
+
+#endif /* _SYS_ENDIAN_H_ */