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



NAME
     xdr_simple:   xdr_bool, xdr_char, xdr_double, xdr_enum,
     xdr_float, xdr_free, xdr_int, xdr_long, xdr_short,
     xdr_u_char, xdr_u_long, xdr_u_short, xdr_void - 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 xdr_create(3N)].

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

     bool_t
     xdr_bool(XDR *xdrs, bool_t *bp);

          xdr_bool 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.
          bool_t
          xdr_char(XDR *xdrs, char *cp);

          xdr_char 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  xdr_bytes,
          xdr_opaque or xdr_string [see xdr_bytes, xdr_opaque and
          xdr_string in xdr_complex(3N)].

          bool_t
          xdr_double(XDR *xdrs, double *dp);

          xdr_double  translates  between  C   double   precision
          numbers  and their external representations.  This rou-
          tine returns 1 if it succeeds, 0 otherwise.
          bool_t
          xdr_enum(XDR *xdrs, enum_t *ep);

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

          bool_t
          xdr_float(XDR *xdrs, float *fp);

          xdr_float 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
          xdr_free(xdrproc_t 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).
          bool_t
          xdr_int(XDR *xdrs, int *ip);

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

          bool_t
          xdr_long(XDR *xdrs, long *lp);

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

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

          bool_t
          xdr_u_char(XDR *xdrs, char *ucp);

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

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

          bool_t
          xdr_u_short(XDR *xdrs, unsigned short *usp);

          xdr_u_short  translates  between   C   unsigned   short
          integers and their external representations.  This rou-
          tine returns 1 if it succeeds, 0 otherwise.
          bool_t
          xdr_void(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), xdr_admin(3N), xdr_complex(3N), xdr_create(3N).

















































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