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bsd_close_socket preserves the error code #196

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bsd_close_socket preserves the error code #196

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7 changes: 7 additions & 0 deletions src/bsd.c
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Original file line number Diff line number Diff line change
Expand Up @@ -300,10 +300,17 @@ LIBUS_SOCKET_DESCRIPTOR bsd_create_socket(int domain, int type, int protocol) {
}

void bsd_close_socket(LIBUS_SOCKET_DESCRIPTOR fd) {
// errno is rewritten by close(fd), and the actual error number is lost.
#ifdef _WIN32
DWORD error;
error = GetLastError();
closesocket(fd);
SetLastError(error);
#else
int error;
error = errno;
close(fd);
errno = error;
#endif
}

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