165 lines
4.5 KiB
C++
165 lines
4.5 KiB
C++
/*
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www.sourceforge.net/projects/dfhack
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Copyright (c) 2009 Petr Mrázek (peterix), Kenneth Ferland (Impaler[WrG]), dorf
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any
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damages arising from the use of this software.
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Permission is granted to anyone to use this software for any
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purpose, including commercial applications, and to alter it and
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redistribute it freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must
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not claim that you wrote the original software. If you use this
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software in a product, an acknowledgment in the product documentation
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would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and
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must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*/
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#include "DFCommonInternal.h"
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using namespace DFHack;
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DfVector DMWindows40d::readVector (uint32_t offset, uint32_t item_size)
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{
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/*
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MSVC++ vector is four pointers long
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ptr allocator
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ptr start
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ptr end
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ptr alloc_end
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we don't care about alloc_end because we don't try to add stuff
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we also don't care about the allocator thing in front
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*/
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uint32_t start = MreadDWord(offset+4);
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uint32_t end = MreadDWord(offset+8);
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uint32_t size = (end - start) /4;
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return DfVector(start,size,item_size);
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}
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size_t DMWindows40d::readSTLString (uint32_t offset, char * buffer, size_t bufcapacity)
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{
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/*
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MSVC++ string
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ptr allocator
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union
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{
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char[16] start;
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char * start_ptr
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}
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Uint32 length
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Uint32 capacity
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*/
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uint32_t start_offset = offset + 4;
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size_t length = MreadDWord(offset + 20);
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size_t capacity = MreadDWord(offset + 24);
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size_t read_real = min(length, bufcapacity-1);// keep space for null termination
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// read data from inside the string structure
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if(capacity < 16)
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{
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Mread(start_offset, read_real , (uint8_t *)buffer);
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}
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else // read data from what the offset + 4 dword points to
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{
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start_offset = MreadDWord(start_offset);// dereference the start offset
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Mread(start_offset, read_real, (uint8_t *)buffer);
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}
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buffer[read_real] = 0;
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return read_real;
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}
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const string DMWindows40d::readSTLString (uint32_t offset)
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{
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/*
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MSVC++ string
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ptr allocator
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union
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{
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char[16] start;
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char * start_ptr
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}
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Uint32 length
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Uint32 capacity
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*/
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uint32_t start_offset = offset + 4;
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uint32_t length = MreadDWord(offset + 20);
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uint32_t capacity = MreadDWord(offset + 24);
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char * temp = new char[capacity+1];
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// read data from inside the string structure
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if(capacity < 16)
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{
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Mread(start_offset, capacity, (uint8_t *)temp);
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}
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else // read data from what the offset + 4 dword points to
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{
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start_offset = MreadDWord(start_offset);// dereference the start offset
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Mread(start_offset, capacity, (uint8_t *)temp);
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}
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temp[length] = 0;
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string ret = temp;
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delete temp;
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return ret;
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}
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DfVector DMLinux40d::readVector (uint32_t offset, uint32_t item_size)
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{
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/*
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GNU libstdc++ vector is three pointers long
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ptr start
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ptr end
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ptr alloc_end
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we don't care about alloc_end because we don't try to add stuff
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*/
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uint32_t start = MreadDWord(offset);
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uint32_t end = MreadDWord(offset+4);
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uint32_t size = (end - start) /4;
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return DfVector(start,size,item_size);
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}
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struct _Rep_base
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{
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uint32_t _M_length;
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uint32_t _M_capacity;
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uint32_t _M_refcount;
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};
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size_t DMLinux40d::readSTLString (uint32_t offset, char * buffer, size_t bufcapacity)
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{
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_Rep_base header;
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offset = MreadDWord(offset);
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Mread(offset - sizeof(_Rep_base),sizeof(_Rep_base),(uint8_t *)&header);
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size_t read_real = min((size_t)header._M_length, bufcapacity-1);// keep space for null termination
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Mread(offset,read_real,(uint8_t * )buffer);
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buffer[read_real] = 0;
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return read_real;
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}
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const string DMLinux40d::readSTLString (uint32_t offset)
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{
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_Rep_base header;
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offset = MreadDWord(offset);
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Mread(offset - sizeof(_Rep_base),sizeof(_Rep_base),(uint8_t *)&header);
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// FIXME: use char* everywhere, avoid string
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char * temp = new char[header._M_length+1];
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Mread(offset,header._M_length+1,(uint8_t * )temp);
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string ret(temp);
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delete temp;
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return ret;
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}
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