What is Wsadata used for?
Remarks
| Caller version support | Winsock DLL version support | wVersion returned |
|---|---|---|
| 1.0 | 1.0 1.1 | 1.0 |
| 1.1 | 1.0 1.1 | 1.1 |
| 1.1 | 1.0 | 1.0 |
| 1.0 | 1.1 | — |
What is ws2_32 lib?
The library ws2_32. lib is an import library. It consist of small stubs that will redirect to the actual implementation in ws2_32. dll. The DLL will be loaded at program load time.
Does Winsock work on Linux?
Linux doesn’t have winsock2. h, or winsock at all for that matter. It’s called Winsock because of Win for Windows, and sock for sockets.
Can socket programming be done in Windows?
The windows api to socket programming is called winsock. Sockets are the fundamental “things” behind any kind of network communications done by your computer.
Where is winsock2h?
/um folder
Upon inspecting the Windows 10 SDK, winsock2. h is located within the include/um folder.
What is wsock32 lib?
The ws2_32. lib file is for Winsock 2, while wsock32. lib is for the obsolete, older version. lib) is an extension to Winsock 1 (wsock32. dll).
Which is the high order byte in wsadata?
The high-order byte specifies the minor version number; the low-order byte specifies the major version number. This is the same value as the wVersion member when the version requested in the wVersionRequested parameter passed to the WSAStartup function is the highest version of the Windows Sockets specification that the Ws2_32.dll can support.
What does the wsadata structure in Win32 mean?
The WSADATA structure contains information about the Windows Sockets implementation. The version of the Windows Sockets specification that the Ws2_32.dll expects the caller to use. The high-order byte specifies the minor version number; the low-order byte specifies the major version number.
Which is version of wsadata does wsastartup return?
The WSAStartup function returns a pointer to the WSADATA structure in the lpWSAData parameter. The current version of the Windows Sockets specification returned in the wHighVersion member of the WSADATA structure is version 2.2 encoded with the major version number in the low-byte and the minor version number in the high-byte.
When to use imaxudpdg in wsadata stack?
The iMaxUdpDg member is retained for compatibility with Windows Sockets specification 1.1, but should not be used when developing new applications. The architecture of Windows Sockets changed in version 2 to support multiple providers, and the WSADATA structure no longer applies to a single vendor’s stack.