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*** 0 ****
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+ /*
+ XDS - OSSP Extensible Data Serialization Library
+ Copyright (c) 2001 The OSSP Project (http://www.ossp.org/)
+ Copyright (c) 2001 Cable & Wireless Deutschland (http://www.cw.com/de/)
+
+ This file is part of OSSP XDS, an extensible data serialization
+ library which can be found at http://www.ossp.com/pkg/xds/.
+
+ Permission to use, copy, modify, and distribute this software for
+ any purpose with or without fee is hereby granted, provided that
+ the above copyright notice and this permission notice appear in all
+ copies.
+
+ THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
+ 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.
+ */
+
+ #include <stdio.h>
+ #include <string.h>
+ #include <assert.h>
+ #include "../internal.h"
+
+ struct mystruct
+ {
+ int32_t small;
+ int64_t big;
+ u_int32_t positive;
+ };
+
+ static int encode_mystruct_engine(xds_t* xds, void* engine_context, void* buffer, size_t buffer_size, va_list* args)
+ {
+ int rc;
+ struct mystruct* ms;
+
+ assert(xds != NULL);
+ assert(buffer != NULL);
+ assert(buffer_size != 0);
+ assert(args != NULL);
+
+ if (buffer_size >= sizeof(struct mystruct))
+ {
+ ms = va_arg(*args, struct mystruct*);
+ rc = xds_encode(xds, "int32 int64 uint32", ms->small, ms->big, ms->positive);
+ if (rc != XDS_OK)
+ return rc;
+ }
+ else
+ return sizeof(struct mystruct);
+
+ return 0;
+ }
+
+ static int decode_mystruct_engine(xds_t* xds, void* engine_context, void* buffer, size_t buffer_size, va_list* args)
+ {
+ int rc;
+ struct mystruct* ms;
+
+ assert(xds != NULL);
+ assert(buffer != NULL);
+ assert(buffer_size != 0);
+ assert(args != NULL);
+
+ if (buffer_size >= sizeof(struct mystruct))
+ {
+ ms = va_arg(*args, struct mystruct*);
+ rc = xds_decode(xds, "int32 int64 uint32", &(ms->small), &(ms->big), &(ms->positive));
+ if (rc != XDS_OK)
+ return rc;
+ }
+ else
+ return XDS_ERR_UNDERFLOW;
+
+ return 0;
+ }
+
+ int main()
+ {
+ xds_t* xds;
+ char* buffer;
+ size_t buffer_size;
+
+ struct mystruct ms, new_ms;
+ ms.small = -0x1234567;
+ ms.big = -0x1234567890abcdeLL;
+ ms.positive = 42;
+
+ /* Encode our copy of mystruct using our encoding callback. Then
+ get a the buffer and destroy the context again. */
+
+ xds = xds_init(XDS_ENCODE);
+ if (xds == NULL)
+ {
+ printf("Failed to initialize XDS context.\n");
+ return 1;
+ }
+ if (xds_register(xds, "mystruct", &encode_mystruct_engine, NULL) != XDS_OK ||
+ xds_register(xds, "int32", &xdr_encode_int32, NULL) != XDS_OK ||
+ xds_register(xds, "int64", &xdr_encode_int64, NULL) != XDS_OK ||
+ xds_register(xds, "uint32", &xdr_encode_uint32, NULL) != XDS_OK)
+ {
+ printf("Failed to register my encoding engines.\n");
+ return 1;
+ }
+ if (xds_encode(xds, "mystruct", &ms) != XDS_OK)
+ {
+ printf("xds_encode() failed!\n");
+ return 1;
+ }
+ if (xds_getbuffer(xds, XDS_GIFT, (void**)&buffer, &buffer_size) != XDS_OK)
+ {
+ printf("xds_setbuffer() failed!\n");
+ return 1;
+ }
+ xds_destroy(xds);
+
+ /* Now create a decoding context and decode the whole thing again. */
+
+ xds = xds_init(XDS_DECODE);
+ if (xds == NULL)
+ {
+ printf("Failed to initialize XDS context.\n");
+ return 1;
+ }
+ if (xds_register(xds, "mystruct", &decode_mystruct_engine, NULL) != XDS_OK ||
+ xds_register(xds, "int32", &xdr_decode_int32, NULL) != XDS_OK ||
+ xds_register(xds, "int64", &xdr_decode_int64, NULL) != XDS_OK ||
+ xds_register(xds, "uint32", &xdr_decode_uint32, NULL) != XDS_OK)
+ {
+ printf("Failed to register my decoding engines.\n");
+ return 1;
+ }
+ if (xds_setbuffer(xds, XDS_GIFT, buffer, buffer_size) != XDS_OK)
+ {
+ printf("xds_setbuffer() failed!\n");
+ return 1;
+ }
+ if (xds_decode(xds, "mystruct", &new_ms) != XDS_OK)
+ {
+ printf("xds_decode() failed!\n");
+ return 1;
+ }
+ xds_destroy(xds);
+
+ /* Both structures must be identical. */
+
+ if (memcmp(&ms, &new_ms, sizeof(struct mystruct)) != 0)
+ {
+ printf("Decoded data does not match the original!\n");
+ return 1;
+ }
+
+ /* Everything went fine. */
+
+ return 0;
+ }
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