+++ /dev/null
-/* @(#)xdr.h 2.2 88/07/29 4.0 RPCSRC */
-/*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
-/* @(#)xdr.h 1.19 87/04/22 SMI */
-
-/*
- * xdr.h, External Data Representation Serialization Routines.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- */
-
-#ifndef __XDR_HEADER__
-#define __XDR_HEADER__
-
-/*
- * XDR provides a conventional way for converting between C data
- * types and an external bit-string representation. Library supplied
- * routines provide for the conversion on built-in C data types. These
- * routines and utility routines defined here are used to help implement
- * a type encode/decode routine for each user-defined type.
- *
- * Each data type provides a single procedure which takes two arguments:
- *
- * bool_t
- * xdrproc(xdrs, argresp)
- * XDR *xdrs;
- * <type> *argresp;
- *
- * xdrs is an instance of a XDR handle, to which or from which the data
- * type is to be converted. argresp is a pointer to the structure to be
- * converted. The XDR handle contains an operation field which indicates
- * which of the operations (ENCODE, DECODE * or FREE) is to be performed.
- *
- * XDR_DECODE may allocate space if the pointer argresp is null. This
- * data can be freed with the XDR_FREE operation.
- *
- * We write only one procedure per data type to make it easy
- * to keep the encode and decode procedures for a data type consistent.
- * In many cases the same code performs all operations on a user defined type,
- * because all the hard work is done in the component type routines.
- * decode as a series of calls on the nested data types.
- */
-
-/*
- * Xdr operations. XDR_ENCODE causes the type to be encoded into the
- * stream. XDR_DECODE causes the type to be extracted from the stream.
- * XDR_FREE can be used to release the space allocated by an XDR_DECODE
- * request.
- */
-enum xdr_op {
- XDR_ENCODE=0,
- XDR_DECODE=1,
- XDR_FREE=2
-};
-
-/*
- * This is the number of bytes per unit of external data.
- */
-#define BYTES_PER_XDR_UNIT (4)
-#define RNDUP(x) ((((x) + BYTES_PER_XDR_UNIT - 1) / BYTES_PER_XDR_UNIT) \
- * BYTES_PER_XDR_UNIT)
-
-/*
- * A xdrproc_t exists for each data type which is to be encoded or decoded.
- *
- * The second argument to the xdrproc_t is a pointer to an opaque pointer.
- * The opaque pointer generally points to a structure of the data type
- * to be decoded. If this pointer is 0, then the type routines should
- * allocate dynamic storage of the appropriate size and return it.
- * bool_t (*xdrproc_t)(XDR *, caddr_t *);
- */
-typedef bool_t (*xdrproc_t)();
-
-/*
- * The XDR handle.
- * Contains operation which is being applied to the stream,
- * an operations vector for the paticular implementation (e.g. see xdr_mem.c),
- * and two private fields for the use of the particular impelementation.
- */
-typedef struct {
- enum xdr_op x_op; /* operation; fast additional param */
- struct xdr_ops {
- bool_t (*x_getlong)(); /* get a long from underlying stream */
- bool_t (*x_putlong)(); /* put a long to " */
- bool_t (*x_getbytes)();/* get some bytes from " */
- bool_t (*x_putbytes)();/* put some bytes to " */
- u_int (*x_getpostn)();/* returns bytes off from beginning */
- bool_t (*x_setpostn)();/* lets you reposition the stream */
- long * (*x_inline)(); /* buf quick ptr to buffered data */
- void (*x_destroy)(); /* free privates of this xdr_stream */
- } *x_ops;
- caddr_t x_public; /* users' data */
- caddr_t x_private; /* pointer to private data */
- caddr_t x_base; /* private used for position info */
- int x_handy; /* extra private word */
-} XDR;
-
-/*
- * Operations defined on a XDR handle
- *
- * XDR *xdrs;
- * long *longp;
- * caddr_t addr;
- * u_int len;
- * u_int pos;
- */
-#define XDR_GETLONG(xdrs, longp) \
- (*(xdrs)->x_ops->x_getlong)(xdrs, longp)
-#define xdr_getlong(xdrs, longp) \
- (*(xdrs)->x_ops->x_getlong)(xdrs, longp)
-
-#define XDR_PUTLONG(xdrs, longp) \
- (*(xdrs)->x_ops->x_putlong)(xdrs, longp)
-#define xdr_putlong(xdrs, longp) \
- (*(xdrs)->x_ops->x_putlong)(xdrs, longp)
-
-#define XDR_GETBYTES(xdrs, addr, len) \
- (*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len)
-#define xdr_getbytes(xdrs, addr, len) \
- (*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len)
-
-#define XDR_PUTBYTES(xdrs, addr, len) \
- (*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len)
-#define xdr_putbytes(xdrs, addr, len) \
- (*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len)
-
-#define XDR_GETPOS(xdrs) \
- (*(xdrs)->x_ops->x_getpostn)(xdrs)
-#define xdr_getpos(xdrs) \
- (*(xdrs)->x_ops->x_getpostn)(xdrs)
-
-#define XDR_SETPOS(xdrs, pos) \
- (*(xdrs)->x_ops->x_setpostn)(xdrs, pos)
-#define xdr_setpos(xdrs, pos) \
- (*(xdrs)->x_ops->x_setpostn)(xdrs, pos)
-
-#define XDR_INLINE(xdrs, len) \
- (void *)((*(xdrs)->x_ops->x_inline)(xdrs, len))
-#define xdr_inline(xdrs, len) \
- (*(xdrs)->x_ops->x_inline)(xdrs, len)
-
-#define XDR_DESTROY(xdrs) \
- if ((xdrs)->x_ops->x_destroy) \
- (*(xdrs)->x_ops->x_destroy)(xdrs)
-#define xdr_destroy(xdrs) \
- if ((xdrs)->x_ops->x_destroy) \
- (*(xdrs)->x_ops->x_destroy)(xdrs)
-
-/*
- * Support struct for discriminated unions.
- * You create an array of xdrdiscrim structures, terminated with
- * a entry with a null procedure pointer. The xdr_union routine gets
- * the discriminant value and then searches the array of structures
- * for a matching value. If a match is found the associated xdr routine
- * is called to handle that part of the union. If there is
- * no match, then a default routine may be called.
- * If there is no match and no default routine it is an error.
- */
-#define NULL_xdrproc_t ((xdrproc_t)0)
-struct xdr_discrim {
- int value;
- xdrproc_t proc;
-};
-
-/*
- * In-line routines for fast encode/decode of primitve data types.
- * Caveat emptor: these use single memory cycles to get the
- * data from the underlying buffer, and will fail to operate
- * properly if the data is not aligned. The standard way to use these
- * is to say:
- * if ((buf = XDR_INLINE(xdrs, count)) == NULL)
- * return (FALSE);
- * <<< macro calls >>>
- * where ``count'' is the number of bytes of data occupied
- * by the primitive data types.
- *
- * N.B. and frozen for all time: each data type here uses 4 bytes
- * of external representation.
- */
-#define IXDR_GET_LONG(buf) ((long)ntohl((u_long)*(buf)++))
-#define IXDR_PUT_LONG(buf, v) (*(buf)++ = (long)htonl((u_long)v))
-
-#define IXDR_GET_BOOL(buf) ((bool_t)IXDR_GET_LONG(buf))
-#define IXDR_GET_ENUM(buf, t) ((t)IXDR_GET_LONG(buf))
-#define IXDR_GET_U_LONG(buf) ((u_long)IXDR_GET_LONG(buf))
-#define IXDR_GET_SHORT(buf) ((short)IXDR_GET_LONG(buf))
-#define IXDR_GET_U_SHORT(buf) ((u_short)IXDR_GET_LONG(buf))
-
-#define IXDR_PUT_BOOL(buf, v) IXDR_PUT_LONG((buf), ((long)(v)))
-#define IXDR_PUT_ENUM(buf, v) IXDR_PUT_LONG((buf), ((long)(v)))
-#define IXDR_PUT_U_LONG(buf, v) IXDR_PUT_LONG((buf), ((long)(v)))
-#define IXDR_PUT_SHORT(buf, v) IXDR_PUT_LONG((buf), ((long)(v)))
-#define IXDR_PUT_U_SHORT(buf, v) IXDR_PUT_LONG((buf), ((long)(v)))
-
-/*
- * These are the "generic" xdr routines.
- */
-extern bool_t xdr_void();
-extern bool_t xdr_int();
-extern bool_t xdr_u_int();
-extern bool_t xdr_long();
-extern bool_t xdr_u_long();
-extern bool_t xdr_short();
-extern bool_t xdr_u_short();
-extern bool_t xdr_bool();
-extern bool_t xdr_enum();
-extern bool_t xdr_array();
-extern bool_t xdr_bytes();
-extern bool_t xdr_opaque();
-extern bool_t xdr_string();
-extern bool_t xdr_union();
-extern bool_t xdr_char();
-extern bool_t xdr_u_char();
-extern bool_t xdr_vector();
-extern bool_t xdr_float();
-extern bool_t xdr_double();
-extern bool_t xdr_reference();
-extern bool_t xdr_pointer();
-extern bool_t xdr_wrapstring();
-
-/*
- * Common opaque bytes objects used by many rpc protocols;
- * declared here due to commonality.
- */
-#define MAX_NETOBJ_SZ 1024
-struct netobj {
- u_int n_len;
- char *n_bytes;
-};
-typedef struct netobj netobj;
-extern bool_t xdr_netobj();
-
-/*
- * These are the public routines for the various implementations of
- * xdr streams.
- */
-extern void xdrmem_create(); /* XDR using memory buffers */
-extern void xdrstdio_create(); /* XDR using stdio library */
-extern void xdrrec_create(); /* XDR pseudo records for tcp */
-extern bool_t xdrrec_endofrecord(); /* make end of xdr record */
-extern bool_t xdrrec_skiprecord(); /* move to beginning of next record */
-extern bool_t xdrrec_eof(); /* true if no more input */
-
-/* RWMJ */
-extern void xdr_free (xdrproc_t, char *);
-extern bool_t xdr_uint64_t (XDR *xdrs, uint64_t *uip);
-extern bool_t xdr_int64_t (XDR *xdrs, int64_t *uip);
-
-#define xdr_u_quad_t xdr_uint64_t
-#define xdr_quad_t xdr_int64_t
-
-#define IXDR_PUT_INT32 IXDR_PUT_LONG
-#define IXDR_GET_INT32 IXDR_GET_LONG
-
-#define XDR_PUTINT32(xdrs, int32p) \
- (*(xdrs)->x_ops->x_putlong)(xdrs, int32p)
-#define XDR_GETINT32(xdrs, int32p) \
- (*(xdrs)->x_ops->x_getlong)(xdrs, int32p)
-
-#endif /* __XDR_HEADER__ */
git.annexia.org / portablexdr.git / blobdiff