mysticbbs/mdl/m_resolve_address.c

55 lines
1.3 KiB
C

#include <sys/socket.h>
#include <stdio.h>
#include <netdb.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <arpa/inet.h>
int32_t ResolveAddress_IPv6(const char *host, char *remote_address);
int32_t ResolveAddress_IPv6(const char *host, char *remote_address)
{
struct addrinfo *result;
struct addrinfo hints;
int error;
char *ptr_address;
ptr_address = remote_address + 1;
// Let's get the Ipv6 address if it exists
memset (&hints, 0, sizeof(hints));
hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_STREAM;
error = getaddrinfo(&host[1], 0, &hints, &result);
if (error == 0) {
inet_ntop(AF_INET6, &(((struct sockaddr_in6 *)(result->ai_addr))->sin6_addr), ptr_address, INET6_ADDRSTRLEN);
*remote_address = (char) strlen(ptr_address);
freeaddrinfo(result);
return AF_INET6;
}
// Nope, Let us check for an ipv4 address
memset (&hints, 0, sizeof(hints));
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
error = getaddrinfo(&host[1], 0, &hints, &result);
if (error == 0) {
inet_ntop(AF_INET, &(((struct sockaddr_in *)(result->ai_addr))->sin_addr), ptr_address, INET6_ADDRSTRLEN);
*remote_address = (char) strlen(ptr_address);
freeaddrinfo(result);
return AF_INET;
}
remote_address = 0;
return 0;
}