windows: Implement socketpair() using TCP sockets
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87a79e6a03
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@ -15,6 +15,8 @@
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#include "utils.h"
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#include <errno.h>
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/**
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* See header
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*/
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@ -33,3 +35,65 @@ void windows_deinit()
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{
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WSACleanup();
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}
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/**
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* See header
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*/
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int socketpair(int domain, int type, int protocol, int sv[2])
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{
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struct sockaddr_in addr = {
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.sin_family = AF_INET,
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.sin_addr.s_addr = htonl(INADDR_LOOPBACK),
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};
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socklen_t len = sizeof(addr);
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int s, c, sc;
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BOOL on;
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/* We don't check domain for AF_INET, as we use it as replacement for
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* AF_UNIX. */
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if (type != SOCK_STREAM)
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{
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errno = EINVAL;
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return -1;
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}
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if (protocol != 0 && protocol != IPPROTO_TCP)
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{
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errno = EINVAL;
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return -1;
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}
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s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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if (s == -1)
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{
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return -1;
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}
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c = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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if (c == -1)
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{
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closesocket(c);
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return -1;
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}
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if (bind(s, (struct sockaddr*)&addr, sizeof(addr)) == 0 &&
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getsockname(s,(struct sockaddr*)&addr, &len) == 0 &&
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listen(s, 0) == 0 &&
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connect(c, (struct sockaddr*)&addr, sizeof(addr)) == 0)
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{
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sc = accept(s, NULL, NULL);
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if (sc > 0)
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{
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closesocket(s);
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s = sc;
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if (setsockopt(s, IPPROTO_TCP, TCP_NODELAY,
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(void*)&on, sizeof(on)) == 0 &&
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setsockopt(c, IPPROTO_TCP, TCP_NODELAY,
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(void*)&on, sizeof(on)) == 0)
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{
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sv[0] = s;
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sv[1] = c;
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return 0;
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}
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}
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}
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closesocket(s);
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closesocket(c);
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return -1;
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}
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@ -246,6 +246,11 @@ static inline int dlclose(void *handle)
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return FreeLibrary((HMODULE)handle);
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}
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/**
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* socketpair(2) for SOCK_STREAM, uses TCP on loopback
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*/
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int socketpair(int domain, int type, int protocol, int sv[2]);
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/* Windows does not support "ll" format printf length modifiers. Mingw
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* therefore maps these to the Windows specific I64 length modifier. That
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* won't work for us, as we use our own printf backend on Windows, which works
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