xdr_array()

The xdr_array() call translates between an array and its external representation.

Syntax

#include <rpc\rpc.h>

bool_t
xdr_array(xdrs, arrp, sizep, maxsize, elsize, elproc)
XDR *xdrs;
char **arrp;
u_int *sizep;
u_int maxsize;
u_int elsize;
xdrproc_t elproc;

Parameters

xdrs

Pointer to an XDR stream.

Address of the pointer to the array.

Pointer to the element count of the array.

Maximum number of elements accepted.

Size of each of the array's elements, found using sizeof().

XDR routine that translates an individual array element.

Return Values

The value 1 indicates success; the value 0 indicates an error.

Examples

struct myarray   {
    int  *arrdata;
    u_int   arrlength;
   };

void
xdr_myarray(xdrsp,arrp)
XDR  *xdrsp;
struct myarray *arrp;
{
  xdr_array(xdrsp,(caddr_t *)&arrp->arrdata,&arrp->arrlength,
                                    MAXLEN,sizeof(int),xdr_int);
}

...
static int arrc_in[10],arrc_out[10];
...
u_long procnum;
register CLIENT *clnt;
enum clnt_stat cs;
struct timeval  total_timeout;
...
total_timeout.tv_sec = 20;
total_timeout.tv_usec = 0;
...
myarrc_in.arrdata =  & arrc_in&lbrk.0&rbrk.;
myarrc_in.arrlength = ( sizeof(arrc_in) / sizeof (int) );
myarrc_out.arrdata = & arrc_out&lbrk.0&rbrk.;
myarrc_out.arrlength = ( sizeof(arrc_out) / sizeof (int) );

cs=clnt_call(clnt, procnum, xdr_myarray, (char *) &myarrc_in, xdr_myarray,
                                 (char *)&myarrc_out, total_timeout);
if ( cs != RPC_SUCCESS)
        printf("*Error* clnt_call fail :\n");
...