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Use Arc* infrastructure to read the .inf file

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svn path=/trunk/; revision=42539
This commit is contained in:
Hervé Poussineau 2009-08-08 21:23:23 +00:00
parent c2b74e4921
commit 945b08e99d
1 changed files with 80 additions and 64 deletions
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88
reactos/boot/freeldr/freeldr/inffile/inffile.c
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@ -873,75 +873,86 @@ InfOpenFile(PHINF InfHandle,
PCSTR FileName, PCSTR FileName,
PULONG ErrorLine) PULONG ErrorLine)
{ {
PFILE FileHandle; FILEINFORMATION Information;
ULONG FileId;
PCHAR FileBuffer; PCHAR FileBuffer;
ULONG FileSize; ULONG FileSize, Count;
PINFCACHE Cache; PINFCACHE Cache;
BOOLEAN Success; BOOLEAN Success;
LONG ret;
*InfHandle = NULL; *InfHandle = NULL;
*ErrorLine = (ULONG)-1; *ErrorLine = (ULONG)-1;
//
/* Open the inf file */ // Open the .inf file
FileHandle = FsOpenFile (FileName); //
if (FileHandle == NULL) FileId = FsOpenFile(FileName);
if (!FileId)
{ {
// DPRINT("NtOpenFile() failed (Status %lx)\n", Status);
return FALSE; return FALSE;
} }
// DPRINT("NtOpenFile() successful\n"); //
// Query file size
/* Query file size */ //
FileSize = FsGetFileSize (FileHandle); ret = ArcGetFileInformation(FileId, &Information);
if (FileSize == 0) if (ret != ESUCCESS || Information.EndingAddress.HighPart != 0)
{ {
// DPRINT("NtQueryInformationFile() failed (Status %lx)\n", Status); ArcClose(FileId);
FsCloseFile (FileHandle);
return FALSE; return FALSE;
} }
FileSize = Information.EndingAddress.LowPart;
// DPRINT("File size: %lu\n", FileLength); //
// Allocate buffer to cache the file
/* Allocate file buffer */ //
FileBuffer = MmHeapAlloc(FileSize + 1); FileBuffer = MmHeapAlloc(FileSize + 1);
if (FileBuffer == NULL) if (!FileBuffer)
{ {
// DPRINT1("RtlAllocateHeap() failed\n"); ArcClose(FileId);
FsCloseFile (FileHandle);
return FALSE; return FALSE;
} }
/* Read file */ //
Success = FsReadFile(FileHandle, FileSize, NULL, FileBuffer); // Read file into memory
//
FsCloseFile (FileHandle); ret = ArcRead(FileId, FileBuffer, FileSize, &Count);
if (!Success) if (ret != ESUCCESS || Count != FileSize)
{ {
// DPRINT("FsReadFile() failed\n"); ArcClose(FileId);
MmHeapFree(FileBuffer); MmHeapFree(FileBuffer);
return FALSE; return FALSE;
} }
/* Append string terminator */ //
// We don't need the file anymore. Close it
//
ArcClose(FileId);
//
// Append string terminator
//
FileBuffer[FileSize] = 0; FileBuffer[FileSize] = 0;
/* Allocate infcache header */ //
// Allocate infcache header
//
Cache = (PINFCACHE)MmHeapAlloc(sizeof(INFCACHE)); Cache = (PINFCACHE)MmHeapAlloc(sizeof(INFCACHE));
if (Cache == NULL) if (!Cache)
{ {
// DPRINT("RtlAllocateHeap() failed\n");
MmHeapFree (FileBuffer); MmHeapFree (FileBuffer);
return FALSE; return FALSE;
} }
/* Initialize inicache header */ //
RtlZeroMemory(Cache, // Initialize inicache header
sizeof(INFCACHE)); //
RtlZeroMemory(Cache, sizeof(INFCACHE));
/* Parse the inf buffer */ //
// Parse the inf buffer
//
Success = InfpParseBuffer(Cache, Success = InfpParseBuffer(Cache,
FileBuffer, FileBuffer,
FileBuffer + FileSize, FileBuffer + FileSize,
@ -952,9 +963,14 @@ InfOpenFile(PHINF InfHandle,
Cache = NULL; Cache = NULL;
} }
/* Free file buffer */ //
// Free file buffer, as it has been parsed
//
MmHeapFree(FileBuffer); MmHeapFree(FileBuffer);
//
// Return .inf parsed contents
//
*InfHandle = (HINF)Cache; *InfHandle = (HINF)Cache;
return Success; return Success;