namesolver.cpp
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/* ****************************************************************************
* Copyright 2019 Open Systems Development BV *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the "Software"), *
* to deal in the Software without restriction, including without limitation *
* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
* and/or sell copies of the Software, and to permit persons to whom the *
* Software is furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included in *
* all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
* DEALINGS IN THE SOFTWARE. *
* ***************************************************************************/
// Local
#include "namesolver.h"
#include "log.h"
// System
#include <string.h>
#include <errno.h>
using namespace osdev::components;
QStringList NameSolver::hostname_to_ip( const QString &host_name )
{
QStringList sResult;
char ip_arr[100];
struct addrinfo hints, *servinfo, *p;
struct sockaddr_in *h;
int rv;
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
if( ( rv = getaddrinfo( host_name.toLatin1().data(), nullptr, &hints, &servinfo ) ) != 0 )
{
LogInfo( "[NameSolver::hostname_to_ip]", QString( "getaddrinfo : %1" ).arg( gai_strerror( rv ) ) );
return sResult;
}
// Loop through all the results and connect to the first we can
for( p = servinfo; p != nullptr; p = p->ai_next )
{
h = reinterpret_cast<struct sockaddr_in *>( p->ai_addr );
strcpy( ip_arr, inet_ntoa( h->sin_addr ) );
sResult.append( QString( reinterpret_cast<const char*>( ip_arr ) ) );
}
freeaddrinfo( servinfo );
return sResult;
}