mirror of
https://github.com/reactos/reactos.git
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56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: lib/rossym/frommem.c
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* PURPOSE: Creating rossym info from an in-memory image
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*
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* PROGRAMMERS: Ge van Geldorp (gvg@reactos.com)
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*/
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#define NTOSAPI
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#include <ntddk.h>
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#include <reactos/rossym.h>
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#include "rossympriv.h"
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#define NDEBUG
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#include <debug.h>
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BOOLEAN
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RosSymCreateFromRaw(PVOID RawData, ULONG_PTR DataSize, PROSSYM_INFO *RosSymInfo)
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{
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PROSSYM_HEADER RosSymHeader;
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RosSymHeader = (PROSSYM_HEADER) RawData;
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if (RosSymHeader->SymbolsOffset < sizeof(ROSSYM_HEADER)
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|| RosSymHeader->StringsOffset < RosSymHeader->SymbolsOffset + RosSymHeader->SymbolsLength
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|| DataSize < RosSymHeader->StringsOffset + RosSymHeader->StringsLength
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|| 0 != (RosSymHeader->SymbolsLength % sizeof(ROSSYM_ENTRY)))
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{
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DPRINT1("Invalid ROSSYM_HEADER\n");
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return FALSE;
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}
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/* Copy */
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*RosSymInfo = RosSymAllocMem(sizeof(ROSSYM_INFO) + RosSymHeader->SymbolsLength
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+ RosSymHeader->StringsLength + 1);
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if (NULL == *RosSymInfo)
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{
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DPRINT1("Failed to allocate memory for rossym\n");
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return FALSE;
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}
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(*RosSymInfo)->Symbols = (PROSSYM_ENTRY)((char *) *RosSymInfo + sizeof(ROSSYM_INFO));
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(*RosSymInfo)->SymbolsCount = RosSymHeader->SymbolsLength / sizeof(ROSSYM_ENTRY);
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(*RosSymInfo)->Strings = (PCHAR) *RosSymInfo + sizeof(ROSSYM_INFO) + RosSymHeader->SymbolsLength;
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(*RosSymInfo)->StringsLength = RosSymHeader->StringsLength;
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memcpy((*RosSymInfo)->Symbols, (char *) RosSymHeader + RosSymHeader->SymbolsOffset,
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RosSymHeader->SymbolsLength);
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memcpy((*RosSymInfo)->Strings, (char *) RosSymHeader + RosSymHeader->StringsOffset,
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RosSymHeader->StringsLength);
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/* Make sure the last string is null terminated, we allocated an extra byte for that */
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(*RosSymInfo)->Strings[(*RosSymInfo)->StringsLength] = '\0';
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return TRUE;
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}
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/* EOF */
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