xdr_string()--Translate between Strings and Their XDR

Syntax

 #include <rpc/xdr.h>

 bool_t xdr_string(XDR *xdrs,
                   char **sp,
                   u_int maxsize);

  Service Program Name: QZNFTRPC

  Default Public Authority: *USE

  Threadsafe: No

The xdr_string() function is a filter primitive that translates between C-language strings and their corresponding external representations.

Parameters

xdrs (Input): A pointer to the External Data Representation (XDR) stream handle.
sp (I/O): The address of the pointer to the string. If decoding and *sp==NULL, XDR allocated the storage needed for the decoded string.
maxsize (Input): The maximum length of the string in bytes allowed during encoding or decoding.

Authorities

No authorization is required.

Return Value

TRUE (1)	Successful
FALSE (0)	Unsuccessful

Error Conditions

None.

Error Messages

Message ID	Error Message Text
CPE3418 E	Possible APAR condition or hardware failure.
CPF3CF2 E	Error(s) occurred during running of &1 API.
CPF9872 E	Program or service program &1 in library &2 ended. Reason code &3.

Example

The following example shows how xdr_string() is used.

Note: By using the code examples, you agree to the terms of the Code license and disclaimer information.

#include <stdio.h>
#include <xdr.h>

#define MAX_LENGTH 100

typedef struct adress
{
        char  street[MAX_LENGTH];
        int   number;
        int   apartment;
} address ;

bool_t xdr_address(XDR *xdrs, address *p_address)
{
        if!(xdr_string(xdrs,&(p_address->street),
        MAX_LENGTH))
                return FALSE;
        if(!xdr_int(xdrs,&(p_address->number)))
                return FALSE;
        return xdr_int(xdrs,&(p_address->apartment));
}

API introduced: V4R2

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