ConvertLengthToIpv4Mask (Compact 2013)
3/26/2014
This function converts an IPv4 prefix length to an IPv4 subnet mask.
Syntax
NETIO_STATUS WINAPI ConvertLengthToIpv4Mask(
__in ULONG MaskLength,
__out PULONG Mask
);
Parameters
- MaskLength
The IPv4 prefix length, in bits.
- Mask
A pointer to a LONG value to hold the IPv4 subnet mask when the function returns successfully.
Return Value
On success, ConvertLengthToIpv4Mask returns NO_ERROR. Any nonzero return value indicates failure and the Mask parameter is set to INADDR_NONE defined in the Ws2def.h header file.
Error code |
Meaning |
|---|---|
ERROR_INVALID_PARAMETER |
One of the parameters was invalid. This error is returned if the MaskLength parameter was invalid. |