mirror of
https://github.com/reactos/reactos.git
synced 2024-11-07 07:00:19 +00:00
515 lines
11 KiB
C
515 lines
11 KiB
C
/*
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* PROJECT: .inf file parser
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* LICENSE: GPL - See COPYING in the top level directory
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* PROGRAMMER: Royce Mitchell III
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* Eric Kohl
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* Ge van Geldorp <gvg@reactos.org>
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*/
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/* INCLUDES *****************************************************************/
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#include "inflib.h"
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#define NDEBUG
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#include <debug.h>
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INFSTATUS
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InfpFindFirstLine(PINFCACHE Cache,
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PCTSTR Section,
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PCTSTR Key,
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PINFCONTEXT *Context)
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{
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PINFCACHESECTION CacheSection;
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PINFCACHELINE CacheLine;
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if (Cache == NULL || Section == NULL || Context == NULL)
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{
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DPRINT1("Invalid parameter\n");
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return INF_STATUS_INVALID_PARAMETER;
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}
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CacheSection = InfpFindSection(Cache, Section);
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if (NULL == CacheSection)
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{
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DPRINT("Section not found\n");
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return INF_STATUS_NOT_FOUND;
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}
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if (Key != NULL)
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{
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CacheLine = InfpFindKeyLine(CacheSection, Key);
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}
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else
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{
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CacheLine = CacheSection->FirstLine;
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}
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if (NULL == CacheLine)
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{
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DPRINT("Key not found\n");
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return INF_STATUS_NOT_FOUND;
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}
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*Context = MALLOC(sizeof(INFCONTEXT));
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if (NULL == *Context)
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{
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DPRINT1("MALLOC() failed\n");
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return INF_STATUS_NO_MEMORY;
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}
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(*Context)->Inf = (PVOID)Cache;
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(*Context)->Section = (PVOID)CacheSection;
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(*Context)->Line = (PVOID)CacheLine;
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return INF_STATUS_SUCCESS;
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}
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INFSTATUS
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InfpFindNextLine(PINFCONTEXT ContextIn,
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PINFCONTEXT ContextOut)
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{
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PINFCACHELINE CacheLine;
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if (ContextIn == NULL || ContextOut == NULL)
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return INF_STATUS_INVALID_PARAMETER;
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if (ContextIn->Line == NULL)
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return INF_STATUS_INVALID_PARAMETER;
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CacheLine = (PINFCACHELINE)ContextIn->Line;
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if (CacheLine->Next == NULL)
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return INF_STATUS_NOT_FOUND;
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if (ContextIn != ContextOut)
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{
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ContextOut->Inf = ContextIn->Inf;
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ContextOut->Section = ContextIn->Section;
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}
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ContextOut->Line = (PVOID)(CacheLine->Next);
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return INF_STATUS_SUCCESS;
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}
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INFSTATUS
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InfpFindFirstMatchLine(PINFCONTEXT ContextIn,
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PCTSTR Key,
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PINFCONTEXT ContextOut)
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{
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PINFCACHELINE CacheLine;
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if (ContextIn == NULL || ContextOut == NULL || Key == NULL || *Key == 0)
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return INF_STATUS_INVALID_PARAMETER;
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if (ContextIn->Inf == NULL || ContextIn->Section == NULL)
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return INF_STATUS_INVALID_PARAMETER;
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CacheLine = ((PINFCACHESECTION)(ContextIn->Section))->FirstLine;
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while (CacheLine != NULL)
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{
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if (CacheLine->Key != NULL && _tcsicmp (CacheLine->Key, Key) == 0)
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{
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if (ContextIn != ContextOut)
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{
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ContextOut->Inf = ContextIn->Inf;
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ContextOut->Section = ContextIn->Section;
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}
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ContextOut->Line = (PVOID)CacheLine;
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return INF_STATUS_SUCCESS;
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}
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CacheLine = CacheLine->Next;
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}
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return INF_STATUS_NOT_FOUND;
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}
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INFSTATUS
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InfpFindNextMatchLine(PINFCONTEXT ContextIn,
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PCTSTR Key,
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PINFCONTEXT ContextOut)
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{
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PINFCACHELINE CacheLine;
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if (ContextIn == NULL || ContextOut == NULL || Key == NULL || *Key == 0)
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return INF_STATUS_INVALID_PARAMETER;
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if (ContextIn->Inf == NULL || ContextIn->Section == NULL || ContextIn->Line == NULL)
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return INF_STATUS_INVALID_PARAMETER;
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CacheLine = (PINFCACHELINE)ContextIn->Line;
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while (CacheLine != NULL)
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{
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if (CacheLine->Key != NULL && _tcsicmp (CacheLine->Key, Key) == 0)
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{
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if (ContextIn != ContextOut)
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{
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ContextOut->Inf = ContextIn->Inf;
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ContextOut->Section = ContextIn->Section;
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}
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ContextOut->Line = (PVOID)CacheLine;
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return INF_STATUS_SUCCESS;
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}
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CacheLine = CacheLine->Next;
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}
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return INF_STATUS_NOT_FOUND;
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}
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LONG
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InfpGetLineCount(HINF InfHandle,
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PCTSTR Section)
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{
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PINFCACHE Cache;
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PINFCACHESECTION CacheSection;
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if (InfHandle == NULL || Section == NULL)
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{
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DPRINT("Invalid parameter\n");
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return -1;
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}
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Cache = (PINFCACHE)InfHandle;
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/* Iterate through list of sections */
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CacheSection = Cache->FirstSection;
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while (CacheSection != NULL)
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{
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/* Are the section names the same? */
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if (_tcsicmp(CacheSection->Name, Section) == 0)
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{
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return CacheSection->LineCount;
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}
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/* Get the next section */
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CacheSection = CacheSection->Next;
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}
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DPRINT("Section not found\n");
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return -1;
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}
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/* InfpGetLineText */
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LONG
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InfpGetFieldCount(PINFCONTEXT Context)
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{
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if (Context == NULL || Context->Line == NULL)
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return 0;
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return ((PINFCACHELINE)Context->Line)->FieldCount;
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}
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INFSTATUS
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InfpGetBinaryField(PINFCONTEXT Context,
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ULONG FieldIndex,
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PUCHAR ReturnBuffer,
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ULONG ReturnBufferSize,
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PULONG RequiredSize)
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{
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PINFCACHELINE CacheLine;
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PINFCACHEFIELD CacheField;
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ULONG Index;
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ULONG Size;
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PUCHAR Ptr;
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if (Context == NULL || Context->Line == NULL || FieldIndex == 0)
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{
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DPRINT("Invalid parameter\n");
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return INF_STATUS_INVALID_PARAMETER;
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}
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if (RequiredSize != NULL)
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*RequiredSize = 0;
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CacheLine = (PINFCACHELINE)Context->Line;
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if (FieldIndex > (ULONG)CacheLine->FieldCount)
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return INF_STATUS_NOT_FOUND;
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CacheField = CacheLine->FirstField;
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for (Index = 1; Index < FieldIndex; Index++)
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CacheField = CacheField->Next;
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Size = CacheLine->FieldCount - FieldIndex + 1;
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if (RequiredSize != NULL)
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*RequiredSize = Size;
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if (ReturnBuffer != NULL)
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{
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if (ReturnBufferSize < Size)
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return INF_STATUS_BUFFER_OVERFLOW;
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/* Copy binary data */
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Ptr = ReturnBuffer;
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while (CacheField != NULL)
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{
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*Ptr = (UCHAR)_tcstoul (CacheField->Data, NULL, 16);
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Ptr++;
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CacheField = CacheField->Next;
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}
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}
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return INF_STATUS_SUCCESS;
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}
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INFSTATUS
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InfpGetIntField(PINFCONTEXT Context,
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ULONG FieldIndex,
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PLONG IntegerValue)
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{
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PINFCACHELINE CacheLine;
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PINFCACHEFIELD CacheField;
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ULONG Index;
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PTCHAR Ptr;
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if (Context == NULL || Context->Line == NULL || IntegerValue == NULL)
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{
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DPRINT("Invalid parameter\n");
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return INF_STATUS_INVALID_PARAMETER;
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}
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CacheLine = (PINFCACHELINE)Context->Line;
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if (FieldIndex > (ULONG)CacheLine->FieldCount)
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{
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DPRINT("Invalid parameter\n");
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return INF_STATUS_INVALID_PARAMETER;
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}
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if (FieldIndex == 0)
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{
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Ptr = CacheLine->Key;
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}
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else
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{
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CacheField = CacheLine->FirstField;
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for (Index = 1; Index < FieldIndex; Index++)
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CacheField = CacheField->Next;
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Ptr = CacheField->Data;
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}
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*IntegerValue = _tcstol(Ptr, NULL, 0);
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return INF_STATUS_SUCCESS;
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}
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INFSTATUS
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InfpGetMultiSzField(PINFCONTEXT Context,
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ULONG FieldIndex,
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PTSTR ReturnBuffer,
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ULONG ReturnBufferSize,
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PULONG RequiredSize)
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{
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PINFCACHELINE CacheLine;
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PINFCACHEFIELD CacheField;
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PINFCACHEFIELD FieldPtr;
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ULONG Index;
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ULONG Size;
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PTCHAR Ptr;
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if (Context == NULL || Context->Line == NULL || FieldIndex == 0)
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{
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DPRINT("Invalid parameter\n");
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return INF_STATUS_INVALID_PARAMETER;
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}
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if (RequiredSize != NULL)
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*RequiredSize = 0;
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CacheLine = (PINFCACHELINE)Context->Line;
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if (FieldIndex > (ULONG)CacheLine->FieldCount)
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return INF_STATUS_INVALID_PARAMETER;
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CacheField = CacheLine->FirstField;
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for (Index = 1; Index < FieldIndex; Index++)
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CacheField = CacheField->Next;
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/* Calculate the required buffer size */
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FieldPtr = CacheField;
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Size = 0;
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while (FieldPtr != NULL)
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{
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Size += (_tcslen (FieldPtr->Data) + 1);
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FieldPtr = FieldPtr->Next;
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}
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Size++;
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if (RequiredSize != NULL)
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*RequiredSize = Size;
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if (ReturnBuffer != NULL)
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{
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if (ReturnBufferSize < Size)
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return INF_STATUS_BUFFER_OVERFLOW;
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/* Copy multi-sz string */
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Ptr = ReturnBuffer;
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FieldPtr = CacheField;
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while (FieldPtr != NULL)
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{
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Size = _tcslen (FieldPtr->Data) + 1;
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_tcscpy (Ptr, FieldPtr->Data);
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Ptr = Ptr + Size;
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FieldPtr = FieldPtr->Next;
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}
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*Ptr = 0;
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}
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return INF_STATUS_SUCCESS;
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}
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INFSTATUS
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InfpGetStringField(PINFCONTEXT Context,
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ULONG FieldIndex,
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PTSTR ReturnBuffer,
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ULONG ReturnBufferSize,
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PULONG RequiredSize)
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{
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PINFCACHELINE CacheLine;
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PINFCACHEFIELD CacheField;
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ULONG Index;
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PTCHAR Ptr;
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ULONG Size;
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if (Context == NULL || Context->Line == NULL || FieldIndex == 0)
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{
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DPRINT("Invalid parameter\n");
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return INF_STATUS_INVALID_PARAMETER;
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}
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if (RequiredSize != NULL)
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*RequiredSize = 0;
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CacheLine = (PINFCACHELINE)Context->Line;
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if (FieldIndex > (ULONG)CacheLine->FieldCount)
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return INF_STATUS_INVALID_PARAMETER;
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if (FieldIndex == 0)
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{
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Ptr = CacheLine->Key;
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}
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else
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{
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CacheField = CacheLine->FirstField;
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for (Index = 1; Index < FieldIndex; Index++)
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CacheField = CacheField->Next;
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Ptr = CacheField->Data;
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}
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Size = _tcslen (Ptr) + 1;
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if (RequiredSize != NULL)
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*RequiredSize = Size;
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if (ReturnBuffer != NULL)
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{
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if (ReturnBufferSize < Size)
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return INF_STATUS_BUFFER_OVERFLOW;
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_tcscpy (ReturnBuffer, Ptr);
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}
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return INF_STATUS_SUCCESS;
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}
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INFSTATUS
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InfpGetData(PINFCONTEXT Context,
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PTCHAR *Key,
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PTCHAR *Data)
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{
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PINFCACHELINE CacheKey;
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if (Context == NULL || Context->Line == NULL || Data == NULL)
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{
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DPRINT("Invalid parameter\n");
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return INF_STATUS_INVALID_PARAMETER;
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}
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CacheKey = (PINFCACHELINE)Context->Line;
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if (Key != NULL)
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*Key = CacheKey->Key;
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if (Data != NULL)
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{
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if (CacheKey->FirstField == NULL)
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{
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*Data = NULL;
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}
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else
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{
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*Data = CacheKey->FirstField->Data;
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}
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}
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return INF_STATUS_SUCCESS;
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}
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INFSTATUS
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InfpGetDataField(PINFCONTEXT Context,
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ULONG FieldIndex,
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PTCHAR *Data)
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{
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PINFCACHELINE CacheLine;
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PINFCACHEFIELD CacheField;
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ULONG Index;
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if (Context == NULL || Context->Line == NULL || Data == NULL)
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{
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DPRINT("Invalid parameter\n");
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return INF_STATUS_INVALID_PARAMETER;
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}
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CacheLine = (PINFCACHELINE)Context->Line;
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if (FieldIndex > (ULONG)CacheLine->FieldCount)
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return INF_STATUS_INVALID_PARAMETER;
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if (FieldIndex == 0)
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{
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*Data = CacheLine->Key;
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}
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else
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{
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CacheField = CacheLine->FirstField;
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for (Index = 1; Index < FieldIndex; Index++)
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CacheField = CacheField->Next;
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*Data = CacheField->Data;
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}
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return INF_STATUS_SUCCESS;
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}
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VOID
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InfpFreeContext(PINFCONTEXT Context)
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{
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FREE(Context);
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}
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/* EOF */
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