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Adds workaround for socket creation on older Windows variants

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Since the WSA_FLAG_NO_HANDLE_INHERIT is only supported on Windows 7 SP1 and above the socket creation fails on older Windows Systems.
     
Let's try to create a socket the old way in this case.
     
Reference:
https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsasocketa
     
WSA_FLAG_NO_HANDLE_INHERIT:
This flag is supported on Windows 7 with SP1, Windows Server 2008 R2 with SP1, and later
This commit is contained in:
Ben Gräf 2019-12-18 07:49:36 +01:00
parent c776454c84
commit 094a6a614a
1 changed files with 16 additions and 0 deletions
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16
httplib.h
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@ -1302,6 +1302,22 @@ socket_t create_socket(const char *host, int port, Fn fn,
#ifdef _WIN32
auto sock = WSASocketW(rp->ai_family, rp->ai_socktype, rp->ai_protocol,
nullptr, 0, WSA_FLAG_NO_HANDLE_INHERIT);
/**
* Since the WSA_FLAG_NO_HANDLE_INHERIT is only supported on Windows 7 SP1 and above
* the socket creation fails on older Windows Systems.
*
* Let's try to create a socket the old way in this case.
*
* Reference:
* https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsasocketa
*
* WSA_FLAG_NO_HANDLE_INHERIT:
* This flag is supported on Windows 7 with SP1, Windows Server 2008 R2 with SP1, and later
*
*/
if (sock == INVALID_SOCKET) {
sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
}
#else
auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
#endif