70 lines
2.7 KiB
C
70 lines
2.7 KiB
C
/****************************************************************************
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* libs/libc/net/lib_etherntoa.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <net/ethernet.h>
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#include <netinet/ether.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: ether_ntoa_r
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*
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* Description:
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* The ether_ntoa_r() function converts the Ethernet host address addr
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* given in network byte order to a string in standard
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* hex-digits-and-colons notation.
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*
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****************************************************************************/
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FAR char *ether_ntoa_r(FAR const struct ether_addr *addr, FAR char *buf)
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{
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sprintf(buf, "%02x:%02x:%02x:%02x:%02x:%02x",
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addr->ether_addr_octet[0], addr->ether_addr_octet[1],
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addr->ether_addr_octet[2], addr->ether_addr_octet[3],
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addr->ether_addr_octet[4], addr->ether_addr_octet[5]);
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return buf;
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}
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/****************************************************************************
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* Name: ether_ntoa
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*
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* Description:
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* The ether_ntoa() function converts the Ethernet host address addr given
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* in network byte order to a string in standard hex-digits-and-colons
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* notation. The string is returned in a statically allocated buffer, which
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* subsequent calls will overwrite.
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*
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****************************************************************************/
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FAR char *ether_ntoa(FAR const struct ether_addr *addr)
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{
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static char buffer[20];
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return ether_ntoa_r(addr, buffer);
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}
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