diff options
Diffstat (limited to 'tinySIGCOMP/src/tcomp_compressor_dummy.c')
| -rwxr-xr-x | tinySIGCOMP/src/tcomp_compressor_dummy.c | 110 |
1 files changed, 55 insertions, 55 deletions
diff --git a/tinySIGCOMP/src/tcomp_compressor_dummy.c b/tinySIGCOMP/src/tcomp_compressor_dummy.c index 34d062d..f5efdf6 100755 --- a/tinySIGCOMP/src/tcomp_compressor_dummy.c +++ b/tinySIGCOMP/src/tcomp_compressor_dummy.c @@ -2,19 +2,19 @@ * Copyright (C) 2010-2011 Mamadou Diop. * * Contact: Mamadou Diop <diopmamadou(at)doubango[dot]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. * @@ -43,62 +43,62 @@ //////////////////////////////////////////////////////////////////////////////////////////////////// /// /// @brief Dummy compressor as per RFC 4896 subclause 11. This function is used to create uncompressed sigcomp message. -/// Used if none match. +/// 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] 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. +/// @param stream Indicates whether it's a stream buffer or not. /// -/// @return 1 if succedd and 0 otherwise. +/// @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; - uint32_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; + tcomp_buffer_handle_t *output_buffer = tcomp_buffer_create_null(); + tsk_size_t pointer = 0; + uint8_t *header; + uint32_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; } |
