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Diffstat (limited to 'REORG.TODO/sunrpc/xdr_ref.c')
| -rw-r--r-- | REORG.TODO/sunrpc/xdr_ref.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/REORG.TODO/sunrpc/xdr_ref.c b/REORG.TODO/sunrpc/xdr_ref.c new file mode 100644 index 0000000000..eab3b74227 --- /dev/null +++ b/REORG.TODO/sunrpc/xdr_ref.c @@ -0,0 +1,140 @@ +/* + * xdr_reference.c, Generic XDR routines implementation. + * + * Copyright (c) 2010, Oracle America, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * * Neither the name of the "Oracle America, Inc." nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * These are the "non-trivial" xdr primitives used to serialize and + * de-serialize "pointers". See xdr.h for more info on the interface to xdr. + */ + +#include <stdio.h> +#include <string.h> +#include <rpc/types.h> +#include <rpc/xdr.h> +#include <libintl.h> +#include <wchar.h> +#include <libio/iolibio.h> +#include <shlib-compat.h> + +#define LASTUNSIGNED ((u_int)0-1) + +/* + * XDR an indirect pointer + * xdr_reference is for recursively translating a structure that is + * referenced by a pointer inside the structure that is currently being + * translated. pp references a pointer to storage. If *pp is null + * the necessary storage is allocated. + * size is the size of the referneced structure. + * proc is the routine to handle the referenced structure. + */ +bool_t +xdr_reference (XDR *xdrs, + /* the pointer to work on */ + caddr_t *pp, + /* size of the object pointed to */ + u_int size, + /* xdr routine to handle the object */ + xdrproc_t proc) +{ + caddr_t loc = *pp; + bool_t stat; + + if (loc == NULL) + switch (xdrs->x_op) + { + case XDR_FREE: + return TRUE; + + case XDR_DECODE: + *pp = loc = (caddr_t) calloc (1, size); + if (loc == NULL) + { + (void) __fxprintf (NULL, "%s: %s", __func__, _("out of memory\n")); + return FALSE; + } + break; + default: + break; + } + + stat = (*proc) (xdrs, loc, LASTUNSIGNED); + + if (xdrs->x_op == XDR_FREE) + { + mem_free (loc, size); + *pp = NULL; + } + return stat; +} +libc_hidden_nolink_sunrpc (xdr_reference, GLIBC_2_0) + + +/* + * xdr_pointer(): + * + * XDR a pointer to a possibly recursive data structure. This + * differs with xdr_reference in that it can serialize/deserialize + * trees correctly. + * + * What's sent is actually a union: + * + * union object_pointer switch (boolean b) { + * case TRUE: object_data data; + * case FALSE: void nothing; + * } + * + * > objpp: Pointer to the pointer to the object. + * > obj_size: size of the object. + * > xdr_obj: routine to XDR an object. + * + */ +bool_t +xdr_pointer (XDR *xdrs, char **objpp, u_int obj_size, xdrproc_t xdr_obj) +{ + + bool_t more_data; + + more_data = (*objpp != NULL); + if (!xdr_bool (xdrs, &more_data)) + { + return FALSE; + } + if (!more_data) + { + *objpp = NULL; + return TRUE; + } + return xdr_reference (xdrs, objpp, obj_size, xdr_obj); +} +#ifdef EXPORT_RPC_SYMBOLS +libc_hidden_def (xdr_pointer) +#else +libc_hidden_nolink_sunrpc (xdr_pointer, GLIBC_2_0) +#endif |