nuttx/libs/libc/netdb/lib_netdb.c
Alin Jerpelea b5d4a01821 libs: Author Gregory Nutt: update licenses to Apache
Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-03-03 18:52:53 -08:00

97 lines
2.8 KiB
C

/****************************************************************************
* libs/libc/netdb/lib_netdb.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <netdb.h>
#include "netdb/lib_netdb.h"
#ifdef CONFIG_LIBC_NETDB
/****************************************************************************
* Public Data
****************************************************************************/
struct hostent g_hostent;
char g_hostbuffer[CONFIG_NETDB_BUFSIZE];
/* When the <netdb.h> header is included, h_errno shall be available as a
* modifiable lvalue of type int. It is unspecified whether h_errno is a
* macro or an identifier declared with external linkage.
*/
int h_errno;
/****************************************************************************
* Public Functions
****************************************************************************/
bool convert_hostent(const FAR struct hostent_s *in,
int type, FAR struct hostent *out)
{
int i;
int j;
/* Initialize the output of hostent */
out->h_name = in->h_name;
out->h_aliases = in->h_aliases;
if (type != AF_UNSPEC)
{
out->h_addrtype = type;
if (type == AF_INET)
{
out->h_length = sizeof(struct in_addr);
}
else
{
out->h_length = sizeof(struct in6_addr);
}
}
else
{
type = in->h_addrtypes[0];
out->h_addrtype = in->h_addrtypes[0];
out->h_length = in->h_lengths[0];
}
out->h_addr_list = in->h_addr_list;
/* Remove different type from list */
for (i = j = 0; in->h_addr_list[i]; i++)
{
if (type == in->h_addrtypes[i])
{
in->h_addr_list[j++] = in->h_addr_list[i];
}
}
in->h_addr_list[j] = NULL;
return j != 0;
}
#endif /* CONFIG_LIBC_NETDB */