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-rw-r--r--nuttx/libc/net/lib_htonl.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/nuttx/libc/net/lib_htonl.c b/nuttx/libc/net/lib_htonl.c
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+/************************************************************
+ * libc/net/lib_ntohl.c
+ *
+ * Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ *
+ ************************************************************/
+
+/************************************************************
+ * Included Files
+ ************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <arpa/inet.h>
+
+/************************************************************
+ * Global Functions
+ ************************************************************/
+
+uint32_t htonl(uint32_t hl)
+{
+#ifdef CONFIG_ENDIAN_BIG
+ return hl;
+#else
+ return (( (hl) >> 24) |
+ (((hl) >> 8) & 0x0000ff00) |
+ (((hl) << 8) & 0x00ff0000) |
+ ( (hl) << 24));
+#endif
+}
+
+uint32_t ntohl(uint32_t nl)
+{
+#ifdef CONFIG_ENDIAN_BIG
+ return nl;
+#else
+ return htonl(nl);
+#endif
+}