SilcBool silc_net_gethostbyaddr(const char *addr, char *name,
SilcUInt32 name_len)
{
#ifdef HAVE_IPV6
struct addrinfo req, *ai;
memset(&req, 0, sizeof(req));
req.ai_socktype = SOCK_STREAM;
req.ai_flags = AI_CANONNAME;
if (getaddrinfo(addr, NULL, &req, &ai))
return FALSE;
if (getnameinfo(ai->ai_addr, ai->ai_addrlen, name, name_len, NULL, 0, 0)) {
freeaddrinfo(ai);
return FALSE;
}
freeaddrinfo(ai);
#else
struct hostent *hp;
unsigned char a[4];
if (!silc_net_addr2bin(addr, a, sizeof(a)))
return FALSE;
hp = gethostbyaddr(a, 4, AF_INET);
if (!hp)
return FALSE;
if (name_len < strlen(hp->h_name))
return FALSE;
memset(name, 0, name_len);
strncpy(name, hp->h_name, strlen(hp->h_name));
#endif
return TRUE;
}
static SilcBool silc_net_set_sockaddr(SilcSockaddr *addr, const char *ip_addr,
int port)
{
int len;
memset(addr, 0, sizeof(*addr));
/* Check for IPv4 and IPv6 addresses */
if (ip_addr) {
if (!silc_net_is_ip(ip_addr)) {
SILC_LOG_ERROR(("%s is not IP address", ip_addr));
return FALSE;
}
if (silc_net_is_ip4(ip_addr)) {
/* IPv4 address */
len = sizeof(addr->sin.sin_addr);
silc_net_addr2bin(ip_addr,
(unsigned char *)&addr->sin.sin_addr.s_addr, len);
addr->sin.sin_family = AF_INET;
addr->sin.sin_port = port ? htons(port) : 0;
} else {
#ifdef HAVE_IPV6
/* IPv6 address */
len = sizeof(addr->sin6.sin6_addr);
silc_net_addr2bin(ip_addr,
(unsigned char *)&addr->sin6.sin6_addr, len);
addr->sin6.sin6_family = AF_INET6;
addr->sin6.sin6_port = port ? htons(port) : 0;
#else
SILC_LOG_ERROR(("IPv6 support is not compiled in"));
return FALSE;
#endif
}
} else {
/* Any address */
addr->sin.sin_family = AF_INET;
addr->sin.sin_addr.s_addr = INADDR_ANY;
if (port)
addr->sin.sin_port = htons(port);
}
return TRUE;
}
static SilcBool silc_net_set_sockaddr(TInetAddr *addr, const char *ip_addr,
int port)
{
/* Check for IPv4 and IPv6 addresses */
if (ip_addr) {
if (!silc_net_is_ip(ip_addr)) {
SILC_LOG_ERROR(("%s is not IP address", ip_addr));
return FALSE;
}
if (silc_net_is_ip4(ip_addr)) {
/* IPv4 address */
unsigned char buf[4];
TUint32 a;
if (!silc_net_addr2bin(ip_addr, buf, sizeof(buf)))
return FALSE;
SILC_GET32_MSB(a, buf);
addr->SetAddress(a);
addr->SetPort(port);
} else {
#ifdef HAVE_IPV6
SILC_LOG_ERROR(("IPv6 not supported"));
return FALSE;
#else
SILC_LOG_ERROR(("Operating System does not support IPv6"));
return FALSE;
#endif
}
} else {
addr->SetAddress(0);
addr->SetPort(port);
}
return TRUE;
}
