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Diffstat (limited to 'branches/1.0/tinySIGCOMP/src/tcomp_compressor_dummy.c')
| -rw-r--r-- | branches/1.0/tinySIGCOMP/src/tcomp_compressor_dummy.c | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/branches/1.0/tinySIGCOMP/src/tcomp_compressor_dummy.c b/branches/1.0/tinySIGCOMP/src/tcomp_compressor_dummy.c deleted file mode 100644 index 204caf0..0000000 --- a/branches/1.0/tinySIGCOMP/src/tcomp_compressor_dummy.c +++ /dev/null @@ -1,104 +0,0 @@ -/* -* Copyright (C) 2009-2010 Mamadou Diop. -* -* Contact: Mamadou Diop <diopmamadou(at)doubango.org> -* -* This file is part of Open Source Doubango Framework. -* -* DOUBANGO is free software: you can redistribute it and/or modify -* it under the terms of the GNU General Public License as published by -* the Free Software Foundation, either version 3 of the License, or -* (at your option) any later version. -* -* DOUBANGO is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. -* -* You should have received a copy of the GNU General Public License -* along with DOUBANGO. -* -*/ - -/**@file tcomp_compressor_dummy.h - * @brief SigComp Dummy compressor. Used if none match. See RFC 4896 subclause 11. - * - * @author Mamadou Diop <diopmamadou(at)yahoo.fr> - * - * @date Created: Sat Nov 8 16:54:58 2009 mdiop - */ - -#include "tcomp_compressor_dummy.h" -#include "tcomp_buffer.h" - -#include <string.h> - -#define UNCOMPRESSED_BYTECODE_LENGTH 13 -#define UNCOMPRESSED_BYTECODE_DESTINATION_CODE 0x01 /* 128 */ -#define DUMMYCOMPRESSOR_UNCOMPRESSED_BYTECODE \ - "\xf8\x00\xa1\x1c\x01\x86\x09\x22\x86\x01\x16\xf9\x23" - - - -//////////////////////////////////////////////////////////////////////////////////////////////////// -/// -/// @brief Dummy compressor as per RFC 4896 subclause 11. This function is used to create uncompressed sigcomp message. -/// Used if none match. -/// -/// @param [in,out] lpCompartment The compartment to use. -/// @param [in,out] input_ptr The input buffer containing the message to compress. -/// @param input_size The size of the input buffer. -/// @param [in,out] output_ptr The output buffer where to copy the compressed message. -/// @param [in,out] output_size The size of the output buffer. -/// @param stream Indicates whether it's a stream buffer or not. -/// -/// @return 1 if succedd and 0 otherwise. -//////////////////////////////////////////////////////////////////////////////////////////////////// -tsk_bool_t tcomp_compressor_dummy_compress(tcomp_compartment_t *lpCompartment, const void *input_ptr, tsk_size_t input_size, void *output_ptr, tsk_size_t *output_size, tsk_bool_t stream) -{ - tcomp_buffer_handle_t *output_buffer = tcomp_buffer_create_null(); - tsk_size_t pointer = 0; - uint8_t *header; - uint16_t codeLen; - - tcomp_buffer_referenceBuff(output_buffer, (uint8_t*)output_ptr, *output_size); - header = tcomp_buffer_getBufferAtPos(output_buffer, pointer++); - - /* SigComp Header */ - if(lpCompartment->lpReqFeedback && tcomp_buffer_getSize(lpCompartment->lpReqFeedback)){ - /* Return the requested feedback */ - *header = 0xfc; /* T=1 */ - memcpy(tcomp_buffer_getBufferAtPos(output_buffer, pointer), tcomp_buffer_getBuffer(lpCompartment->lpReqFeedback), tcomp_buffer_getSize(lpCompartment->lpReqFeedback)); - pointer += tcomp_buffer_getSize(lpCompartment->lpReqFeedback); - } - else{ - *header = 0xf8; - } - - codeLen = UNCOMPRESSED_BYTECODE_LENGTH; - /* first byte for codelen */ - *tcomp_buffer_getBufferAtPos(output_buffer, pointer++) = ((codeLen>>4)& 0x00ff); - - /* last 4 bits for codelen */ - *tcomp_buffer_getBufferAtPos(output_buffer, pointer) = ((codeLen & 0x000f)<<4); - - /* first and last 4 bits for destination */ - *tcomp_buffer_getBufferAtPos(output_buffer, pointer++) |= UNCOMPRESSED_BYTECODE_DESTINATION_CODE; - - /* - * Upload UDVM bytecode - */ - memcpy(tcomp_buffer_getBufferAtPos(output_buffer, pointer), (uint8_t*)DUMMYCOMPRESSOR_UNCOMPRESSED_BYTECODE, codeLen); - pointer += codeLen; - - /* - * Copy data uncompressed - */ - memcpy(tcomp_buffer_getBufferAtPos(output_buffer, pointer), input_ptr, input_size); - pointer += input_size; - *output_size = (pointer); - - TSK_OBJECT_SAFE_FREE(output_buffer); - - return tsk_true; -} |
