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#include "../include/sibs/IpAddress.hpp"
#include <cstring>
#if OS_FAMILY == OS_FAMILY_WINDOWS
// Source: https://stackoverflow.com/questions/15370033/how-to-use-inet-pton-with-the-mingw-compiler
#define NS_INADDRSZ 4
#define NS_IN6ADDRSZ 16
#define NS_INT16SZ 2
int inet_pton(int af, const char *src, void *dst)
{
switch (af)
{
case AF_INET:
return inet_pton4(src, dst);
case AF_INET6:
return inet_pton6(src, dst);
default:
return -1;
}
}
int inet_pton4(const char *src, void *_dst)
{
char *dst = (char*)_dst;
uint8_t tmp[NS_INADDRSZ], *tp;
int saw_digit = 0;
int octets = 0;
*(tp = tmp) = 0;
int ch;
while ((ch = *src++) != '\0')
{
if (ch >= '0' && ch <= '9')
{
uint32_t n = *tp * 10 + (ch - '0');
if (saw_digit && *tp == 0)
return 0;
if (n > 255)
return 0;
*tp = n;
if (!saw_digit)
{
if (++octets > 4)
return 0;
saw_digit = 1;
}
}
else if (ch == '.' && saw_digit)
{
if (octets == 4)
return 0;
*++tp = 0;
saw_digit = 0;
}
else
return 0;
}
if (octets < 4)
return 0;
memcpy(dst, tmp, NS_INADDRSZ);
return 1;
}
int inet_pton6(const char *src, void *_dst)
{
char *dst = (char*)_dst;
static const char xdigits[] = "0123456789abcdef";
uint8_t tmp[NS_IN6ADDRSZ];
uint8_t *tp = (uint8_t*) memset(tmp, '\0', NS_IN6ADDRSZ);
uint8_t *endp = tp + NS_IN6ADDRSZ;
uint8_t *colonp = NULL;
/* Leading :: requires some special handling. */
if (*src == ':')
{
if (*++src != ':')
return 0;
}
const char *curtok = src;
int saw_xdigit = 0;
uint32_t val = 0;
int ch;
while ((ch = tolower(*src++)) != '\0')
{
const char *pch = strchr(xdigits, ch);
if (pch != NULL)
{
val <<= 4;
val |= (pch - xdigits);
if (val > 0xffff)
return 0;
saw_xdigit = 1;
continue;
}
if (ch == ':')
{
curtok = src;
if (!saw_xdigit)
{
if (colonp)
return 0;
colonp = tp;
continue;
}
else if (*src == '\0')
{
return 0;
}
if (tp + NS_INT16SZ > endp)
return 0;
*tp++ = (uint8_t) (val >> 8) & 0xff;
*tp++ = (uint8_t) val & 0xff;
saw_xdigit = 0;
val = 0;
continue;
}
if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) &&
inet_pton4(curtok, (char*) tp) > 0)
{
tp += NS_INADDRSZ;
saw_xdigit = 0;
break; /* '\0' was seen by inet_pton4(). */
}
return 0;
}
if (saw_xdigit)
{
if (tp + NS_INT16SZ > endp)
return 0;
*tp++ = (uint8_t) (val >> 8) & 0xff;
*tp++ = (uint8_t) val & 0xff;
}
if (colonp != NULL)
{
/*
* Since some memmove()'s erroneously fail to handle
* overlapping regions, we'll do the shift by hand.
*/
const int n = tp - colonp;
if (tp == endp)
return 0;
for (int i = 1; i <= n; i++)
{
endp[-i] = colonp[n - i];
colonp[n - i] = 0;
}
tp = endp;
}
if (tp != endp)
return 0;
memcpy(dst, tmp, NS_IN6ADDRSZ);
return 1;
}
#endif
namespace sibs
{
Ipv4::Ipv4() : Ipv4(nullptr, 0)
{
}
Ipv4::Ipv4(const char *ip, unsigned short port)
{
address.sin_family = AF_INET;
address.sin_port = htons(port);
if(ip)
{
if(strlen(ip) > 15)
throw InvalidAddressException("Ip address is too long");
if(inet_pton(AF_INET, ip, &address.sin_addr.s_addr) != 1)
{
std::string errMsg = "Ip ";
errMsg += ip;
errMsg += " is not a valid ip";
throw InvalidAddressException(errMsg);
}
}
else
address.sin_addr.s_addr = INADDR_ANY;
memset(address.sin_zero, 0, sizeof(address.sin_zero));
}
Ipv4::Ipv4(u16 family, u32 addr, u16 port)
{
address.sin_family = family;
address.sin_addr.s_addr = addr;
address.sin_port = port;
memset(address.sin_zero, 0, sizeof(address.sin_zero));
}
Ipv4::Ipv4(const Ipv4 &other)
{
memcpy(&address, &other.address, sizeof(address));
}
Ipv4& Ipv4::operator = (const Ipv4 &other)
{
memcpy(&address, &other.address, sizeof(address));
return *this;
}
std::string Ipv4::getAddress() const
{
std::string result;
const int addrLen = sizeof(address);
char host[NI_MAXHOST];
char service[NI_MAXSERV];
getnameinfo((sockaddr *)&address, addrLen, host, sizeof(host), service, sizeof(service), NI_NUMERICHOST | NI_NUMERICSERV);
result += host;
return result;
}
unsigned short Ipv4::getPort() const
{
return ntohs(address.sin_port);
}
bool Ipv4::operator == (const Ipv4 &other) const
{
return address.sin_addr.s_addr == other.address.sin_addr.s_addr && address.sin_port == other.address.sin_port;
}
bool Ipv4::operator != (const Ipv4 &other) const
{
return !(*this == other);
}
}
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