XDR Subroutine Format
An eXternal Data Representation (XDR) subroutine is associated with each data type.
XDR subroutines have the following format:
xdr_XXX (XDRS, FP)
XDR *XDRS;
XXX *FP;
{
}
The parameters are described as follows:
| Item | Description |
|---|---|
| XXX | Requires an XDR data type. |
| XDRS | Specifies an opaque handle that points to an XDR stream. The opaque handle pointer is passed to the primitive XDR routines. |
| FP | Specifies an address of the data value that provides data to the stream or receives data from it. |
The XDR subroutines usually return a value of 1 if successful. If unsuccessful, the return value is 0. Return values other than these are noted within the description of the appropriate subroutine.