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/* POSIX emulation layer for Windows.
*
* (C) 2008-2024 Anope Team
* Contact us at team@anope.org
*
* Please read COPYING and README for further details.
*/
#define WIN32_NO_OVERRIDE
#include "services.h"
inline static bool is_socket(int fd)
{
int optval;
socklen_t optlen = sizeof(optval);
return getsockopt(fd, SOL_SOCKET, SO_TYPE, reinterpret_cast<char *>(&optval), &optlen) == 0;
}
int read(int fd, char *buf, size_t count)
{
if (is_socket(fd))
return recv(fd, buf, count, 0);
else
return _read(fd, buf, count);
}
int write(int fd, const char *buf, size_t count)
{
if (is_socket(fd))
return send(fd, buf, count, 0);
else
return _write(fd, buf, count);
}
int windows_close(int fd)
{
if (is_socket(fd))
return closesocket(fd);
else
return close(fd);
}
int windows_accept(int fd, struct sockaddr *addr, int *addrlen)
{
int i = accept(fd, addr, addrlen);
if (i == INVALID_SOCKET)
return -1;
return i;
}
/** This is inet_pton, but it works on Windows
* @param af The protocol type, AF_INET or AF_INET6
* @param src The address
* @param dst Struct to put results in
* @return 1 on success, -1 on error
*/
int windows_inet_pton(int af, const char *src, void *dst)
{
int address_length;
sockaddr_storage sa;
sockaddr_in *sin = reinterpret_cast<sockaddr_in *>(&sa);
sockaddr_in6 *sin6 = reinterpret_cast<sockaddr_in6 *>(&sa);
switch (af)
{
case AF_INET:
address_length = sizeof(sockaddr_in);
break;
case AF_INET6:
address_length = sizeof(sockaddr_in6);
break;
default:
return -1;
}
if (!WSAStringToAddress(static_cast<LPSTR>(const_cast<char *>(src)), af, NULL, reinterpret_cast<LPSOCKADDR>(&sa), &address_length))
{
switch (af)
{
case AF_INET:
memcpy(dst, &sin->sin_addr, sizeof(in_addr));
break;
case AF_INET6:
memcpy(dst, &sin6->sin6_addr, sizeof(in6_addr));
break;
}
return 1;
}
return 0;
}
/** This is inet_ntop, but it works on Windows
* @param af The protocol type, AF_INET or AF_INET6
* @param src Network address structure
* @param dst After converting put it here
* @param size sizeof the dest
* @return dst
*/
const char *windows_inet_ntop(int af, const void *src, char *dst, size_t size)
{
int address_length;
DWORD string_length = size;
sockaddr_storage sa;
sockaddr_in *sin = reinterpret_cast<sockaddr_in *>(&sa);
sockaddr_in6 *sin6 = reinterpret_cast<sockaddr_in6 *>(&sa);
memset(&sa, 0, sizeof(sa));
switch (af)
{
case AF_INET:
address_length = sizeof(sockaddr_in);
sin->sin_family = af;
memcpy(&sin->sin_addr, src, sizeof(in_addr));
break;
case AF_INET6:
address_length = sizeof(sockaddr_in6);
sin6->sin6_family = af;
memcpy(&sin6->sin6_addr, src, sizeof(in6_addr));
break;
default:
return NULL;
}
if (!WSAAddressToString(reinterpret_cast<LPSOCKADDR>(&sa), address_length, NULL, dst, &string_length))
return dst;
return NULL;
}
int fcntl(int fd, int cmd, int arg)
{
if (cmd == F_GETFL)
{
return 0;
}
else if (cmd == F_SETFL)
{
if (arg & O_NONBLOCK)
{
unsigned long opt = 1;
return ioctlsocket(fd, FIONBIO, &opt);
}
else
{
unsigned long opt = 0;
return ioctlsocket(fd, FIONBIO, &opt);
}
}
return -1;
}
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