xdr_simple(3N)          NETWORK FUNCTIONS          xdr_simple(3N)



NAME
     xdrsimple:   xdrbool, xdrchar, xdrdouble, xdrenum,
     xdrfloat, xdrfree, xdrint, xdrlong, xdrshort,
     xdruchar, xdrulong, xdrushort, xdrvoid - library rou-
     tines for external data representation

DESCRIPTION
     XDR library routines allow C programmers to describe  simple
     data structures in a machine-independent fashion.  Protocols
     such as remote procedure calls (RPC) use these  routines  to
     describe the format of the data.  These routines require the
     creation of XDR streams [see xdrcreate(3N)].

  Routines
     See rpc(3N) for the definition of the XDR data structure.
     #include <rpc/xdr.h>

     boolt
     xdrbool(XDR *xdrs, boolt *bp);

          xdrbool translates between booleans (C  integers)  and
          their  external  representations.   When encoding data,
          this filter produces values of either  1  or  0.   This
          routine returns 1 if it succeeds, 0 otherwise.
          boolt
          xdrchar(XDR *xdrs, char *cp);

          xdrchar translates  between  C  characters  and  their
          external representations.  This routine returns 1 if it
          succeeds, 0 otherwise.  Note:  encoded  characters  are
          not  packed,  and  occupy  4 bytes each.  For arrays of
          characters, it is  worthwhile  to  consider  xdrbytes,
          xdropaque or xdrstring [see xdrbytes, xdropaque and
          xdrstring in xdrcomplex(3N)].

          boolt
          xdrdouble(XDR *xdrs, double *dp);

          xdrdouble  translates  between  C   double   precision
          numbers  and their external representations.  This rou-
          tine returns 1 if it succeeds, 0 otherwise.
          boolt
          xdrenum(XDR *xdrs, enumt *ep);

          xdrenum translates between C enums (actually integers)
          and   their  external  representations.   This  routine
          returns 1 if it succeeds, 0 otherwise.

          boolt
          xdrfloat(XDR *xdrs, float *fp);

          xdrfloat translates between C floats and their  exter-
          nal  representations.   This  routine  returns  1 if it



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xdr_simple(3N)          NETWORK FUNCTIONS          xdr_simple(3N)



          succeeds, 0 otherwise.

          void
          xdrfree(xdrproct proc, char *objp);

          Generic freeing routine.  The first argument is the XDR
          routine  for  the object being freed.  The second argu-
          ment is a pointer to the  object  itself.   Note:   the
          pointer  passed  to this routine is not freed, but what
          it points to is freed (recursively).
          boolt
          xdrint(XDR *xdrs, int *ip);

          xdrint translates between C integers and their  exter-
          nal  representations.   This  routine  returns  1 if it
          succeeds, 0 otherwise.

          boolt
          xdrlong(XDR *xdrs, long *lp);

          xdrlong translates between C long integers  and  their
          external representations.  This routine returns 1 if it
          succeeds, 0 otherwise.
          boolt
          xdrshort(XDR *xdrs, short *sp);

          xdrshort translates between C short integers and their
          external representations.  This routine returns 1 if it
          succeeds, 0 otherwise.

          boolt
          xdruchar(XDR *xdrs, char *ucp);

          xdruchar translates between unsigned C characters and
          their external representations.  This routine returns 1
          if it succeeds, 0 otherwise.
          boolt
          xdrulong(XDR *xdrs, unsigned long *ulp);

          xdrulong translates between C unsigned long  integers
          and   their  external  representations.   This  routine
          returns 1 if it succeeds, 0 otherwise.

          boolt
          xdrushort(XDR *xdrs, unsigned short *usp);

          xdrushort  translates  between   C   unsigned   short
          integers and their external representations.  This rou-
          tine returns 1 if it succeeds, 0 otherwise.
          boolt
          xdrvoid(void);




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xdr_simple(3N)          NETWORK FUNCTIONS          xdr_simple(3N)



          This routine always returns 1.  It may be passed to RPC
          routines that require a function parameter, where noth-
          ing is to be done.

SEE ALSO
     rpc(3N), xdradmin(3N), xdrcomplex(3N), xdrcreate(3N).

















































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