2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
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25 * Sun Microsystems, Inc.
27 * Mountain View, California 94043
30 /* This file has the contents of Sun's orginal types.h file added. */
32 /* @(#)types.h 1.1 86/02/03 SMI */
35 * Rpc additions to <sys/types.h>
38 #ifndef __XDR_INCLUDE__
39 #define __XDR_INCLUDE__
40 #include <afs/param.h>
56 #define __dontcare__ -1
59 #define mem_alloc(bsize) malloc(bsize)
63 #define mem_free(ptr, bsize) free(ptr)
67 #define osi_alloc afs_osi_Alloc
68 #define osi_free afs_osi_Free
70 /* keep here for now, 64 bit issues */
71 extern void *afs_osi_Alloc(size_t x);
72 extern void *afs_osi_Alloc_NoSleep(size_t x);
73 extern void afs_osi_Free(void *x, size_t asize);
76 #define xdr_void afs_xdr_void
77 #define xdr_int afs_xdr_int
78 #define xdr_u_int afs_xdr_u_int
79 #define xdr_short afs_xdr_short
80 #define xdr_u_short afs_xdr_u_short
81 #define xdr_long afs_xdr_long
82 #define xdr_u_long afs_xdr_u_long
83 #define xdr_char afs_xdr_char
84 #define xdr_u_char afs_xdr_u_char
85 #define xdr_bool afs_xdr_bool
86 #define xdr_enum afs_xdr_enum
87 #define xdr_array afs_xdr_array
88 #define xdr_arrayN afs_xdr_arrayN
89 #define xdr_bytes afs_xdr_bytes
90 #define xdr_opaque afs_xdr_opaque
91 #define xdr_string afs_xdr_string
92 #define xdr_union afs_xdr_union
93 #define xdr_float afs_xdr_float
94 #define xdr_double afs_xdr_double
95 #define xdr_reference afs_xdr_reference
96 #define xdr_wrapstring afs_xdr_wrapstring
97 #define xdr_vector afs_xdr_vector
98 #define xdr_int64 afs_xdr_int64
99 #define xdr_uint64 afs_xdr_uint64
102 #ifndef major /* ouch! */
103 #include <sys/types.h>
106 /* @(#)xdr.h 1.1 86/02/03 SMI */
109 * xdr.h, External Data Representation Serialization Routines.
111 * Copyright (C) 1984, Sun Microsystems, Inc.
115 * XDR provides a conventional way for converting between C data
116 * types and an external bit-string representation. Library supplied
117 * routines provide for the conversion on built-in C data types. These
118 * routines and utility routines defined here are used to help implement
119 * a type encode/decode routine for each user-defined type.
121 * Each data type provides a single procedure which takes two arguments:
124 * xdrproc(xdrs, argresp)
128 * xdrs is an instance of a XDR handle, to which or from which the data
129 * type is to be converted. argresp is a pointer to the structure to be
130 * converted. The XDR handle contains an operation field which indicates
131 * which of the operations (ENCODE, DECODE * or FREE) is to be performed.
133 * XDR_DECODE may allocate space if the pointer argresp is null. This
134 * data can be freed with the XDR_FREE operation.
136 * We write only one procedure per data type to make it easy
137 * to keep the encode and decode procedures for a data type consistent.
138 * In many cases the same code performs all operations on a user defined type,
139 * because all the hard work is done in the component type routines.
140 * decode as a series of calls on the nested data types.
144 * Xdr operations. XDR_ENCODE causes the type to be encoded into the
145 * stream. XDR_DECODE causes the type to be extracted from the stream.
146 * XDR_FREE can be used to release the space allocated by an XDR_DECODE
156 * This is the number of bytes per unit of external data.
158 #define BYTES_PER_XDR_UNIT (4)
161 * A xdrproc_t exists for each data type which is to be encoded or decoded.
163 * The second argument to the xdrproc_t is a pointer to an opaque pointer.
164 * The opaque pointer generally points to a structure of the data type
165 * to be decoded. If this pointer is 0, then the type routines should
166 * allocate dynamic storage of the appropriate size and return it.
167 * bool_t (*xdrproc_t)(XDR *, caddr_t *);
170 typedef bool_t (*xdrproc_t)();
172 typedef bool_t (*xdrproc_t) (void *, ...);
178 * Contains operation which is being applied to the stream,
179 * an operations vector for the paticular implementation (e.g. see xdr_mem.c),
180 * and two private fields for the use of the particular impelementation.
183 enum xdr_op x_op; /* operation; fast additional param */
185 #if defined(AFS_SGI61_ENV) && defined(KERNEL) && (_MIPS_SZLONG != _MIPS_SZINT)
186 /* NOTE: SGI 6.1 adds two routines to the xdr_ops if the size of a long is
187 * 64 bits. I've only done this for the kernel, since other changes may
188 * be necessary if we make a 64 bit user version of AFS.
190 bool_t (*x_getint64)(void *xdrs, afs_int64 *lp); /* get 32 bits into a long */
191 bool_t (*x_putint64)(void *xdrs, afs_int64 *lp); /* send 32 bits of a long */
192 #endif /* AFS_SGI61_ENV */
193 #if !(defined(KERNEL) && defined(AFS_SUN57_ENV))
194 bool_t (*x_getint32)(void *xdrs, afs_int32 *lp); /* get an afs_int32 from underlying stream */
195 bool_t (*x_putint32)(void *xdrs, afs_int32 *lp); /* put an afs_int32 to " */
197 bool_t (*x_getbytes)(void *xdrs, caddr_t addr, u_int len);/* get some bytes from " */
198 bool_t (*x_putbytes)(void *xdrs, caddr_t addr, u_int len);/* put some bytes to " */
199 u_int (*x_getpostn)(void *xdrs);/* returns bytes off from beginning */
200 bool_t (*x_setpostn)(void *xdrs, u_int pos);/* lets you reposition the stream */
201 afs_int32 * (*x_inline)(void *xdrs, u_int len); /* buf quick ptr to buffered data */
202 void (*x_destroy)(void *xdrs); /* free privates of this xdr_stream */
203 #if defined(KERNEL) && defined(AFS_SUN57_ENV)
204 bool_t (*x_control)(void *xdrs);
205 bool_t (*x_getint32)(void *xdrs, afs_int32 *lp);
206 bool_t (*x_putint32)(void *xdrs, afs_int32 *lp);
209 caddr_t x_public; /* users' data */
210 caddr_t x_private; /* pointer to private data */
211 caddr_t x_base; /* private used for position info */
212 int x_handy; /* extra private word */
216 * Operations defined on a XDR handle
224 #if defined(AFS_SGI61_ENV) && defined(KERNEL) && (_MIPS_SZLONG != _MIPS_SZINT)
225 #define XDR_GETINT64(xdrs, int64p) \
226 (*(xdrs)->x_ops->x_getint64)(xdrs, int64p)
227 #define xdr_getint64(xdrs, int64p) \
228 (*(xdrs)->x_ops->x_getint64)(xdrs, int64p)
230 #define XDR_PUTINT64(xdrs, int64p) \
231 (*(xdrs)->x_ops->x_putint64)(xdrs, int64p)
232 #define xdr_putint64(xdrs, int64p) \
233 (*(xdrs)->x_ops->x_putint64)(xdrs, int64p)
234 #endif /* defined(AFS_SGI61_ENV) && KERNEL && (_MIPS_SZLONG != _MIPS_SZINT) */
236 #define XDR_GETINT32(xdrs, int32p) \
237 (*(xdrs)->x_ops->x_getint32)(xdrs, int32p)
238 #define xdr_getint32(xdrs, int32p) \
239 (*(xdrs)->x_ops->x_getint32)(xdrs, int32p)
241 #define XDR_PUTINT32(xdrs, int32p) \
242 (*(xdrs)->x_ops->x_putint32)(xdrs, int32p)
243 #define xdr_putint32(xdrs, int32p) \
244 (*(xdrs)->x_ops->x_putint32)(xdrs, int32p)
246 #define XDR_GETBYTES(xdrs, addr, len) \
247 (*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len)
248 #define xdr_getbytes(xdrs, addr, len) \
249 (*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len)
251 #define XDR_PUTBYTES(xdrs, addr, len) \
252 (*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len)
253 #define xdr_putbytes(xdrs, addr, len) \
254 (*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len)
256 #define XDR_GETPOS(xdrs) \
257 (*(xdrs)->x_ops->x_getpostn)(xdrs)
258 #define xdr_getpos(xdrs) \
259 (*(xdrs)->x_ops->x_getpostn)(xdrs)
261 #define XDR_SETPOS(xdrs, pos) \
262 (*(xdrs)->x_ops->x_setpostn)(xdrs, pos)
263 #define xdr_setpos(xdrs, pos) \
264 (*(xdrs)->x_ops->x_setpostn)(xdrs, pos)
266 #define XDR_INLINE(xdrs, len) \
267 (*(xdrs)->x_ops->x_inline)(xdrs, len)
268 #define xdr_inline(xdrs, len) \
269 (*(xdrs)->x_ops->x_inline)(xdrs, len)
271 #define XDR_DESTROY(xdrs) \
272 if ((xdrs)->x_ops->x_destroy) \
273 (*(xdrs)->x_ops->x_destroy)(xdrs)
274 #define xdr_destroy(xdrs) \
275 if ((xdrs)->x_ops->x_destroy) \
276 (*(xdrs)->x_ops->x_destroy)(xdrs)
279 * Support struct for discriminated unions.
280 * You create an array of xdrdiscrim structures, terminated with
281 * a entry with a null procedure pointer. The xdr_union routine gets
282 * the discriminant value and then searches the array of structures
283 * for a matching value. If a match is found the associated xdr routine
284 * is called to handle that part of the union. If there is
285 * no match, then a default routine may be called.
286 * If there is no match and no default routine it is an error.
288 #define NULL_xdrproc_t ((xdrproc_t)0)
295 * In-line routines for fast encode/decode of primitve data types.
296 * Caveat emptor: these use single memory cycles to get the
297 * data from the underlying buffer, and will fail to operate
298 * properly if the data is not aligned. The standard way to use these
300 * if ((buf = XDR_INLINE(xdrs, count)) == NULL)
302 * <<< macro calls >>>
303 * where ``count'' is the number of bytes of data occupied
304 * by the primitive data types.
306 * N.B. and frozen for all time: each data type here uses 4 bytes
307 * of external representation.
309 #define IXDR_GET_INT32(buf) ntohl(*buf++)
310 #define IXDR_PUT_INT32(buf, v) (*buf++ = htonl(v))
312 #define IXDR_GET_BOOL(buf) ((bool_t)IXDR_GET_INT32(buf))
313 #define IXDR_GET_ENUM(buf, t) ((t)IXDR_GET_INT32(buf))
314 #define IXDR_GET_U_INT32(buf) ((afs_uint32)IXDR_GET_INT32(buf))
315 #define IXDR_GET_SHORT(buf) ((short)IXDR_GET_INT32(buf))
316 #define IXDR_GET_U_SHORT(buf) ((u_short)IXDR_GET_INT32(buf))
318 #define IXDR_PUT_BOOL(buf, v) IXDR_PUT_INT32((buf), ((afs_int32)(v)))
319 #define IXDR_PUT_ENUM(buf, v) IXDR_PUT_INT32((buf), ((afs_int32)(v)))
320 #define IXDR_PUT_U_INT32(buf, v) IXDR_PUT_INT32((buf), ((afs_int32)(v)))
321 #define IXDR_PUT_SHORT(buf, v) IXDR_PUT_INT32((buf), ((afs_int32)(v)))
322 #define IXDR_PUT_U_SHORT(buf, v) IXDR_PUT_INT32((buf), ((afs_int32)(v)))
324 #include "xdr_prototypes.h"
326 #endif /* __XDR_INCLUDE__ */