infget.c File Reference

#include "inflib.h"
#include <debug.h>

Include dependency graph for infget.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
static size_t	InfpSubstituteString (PINFCACHE Inf, const WCHAR *text, WCHAR *buffer, size_t size)
static void	ShortToHex (PWCHAR Buffer, USHORT Value)
static PCWSTR	InfpGetSubstitutionString (PINFCACHE Inf, PCWSTR str, size_t *len, BOOL no_trailing_slash)
static size_t	InfpSubstituteString (PINFCACHE Inf, PCWSTR text, PWSTR buffer, size_t size)
INFSTATUS	InfpFindFirstLine (PINFCACHE Cache, PCWSTR Section, PCWSTR Key, PINFCONTEXT *Context)
INFSTATUS	InfpFindNextLine (PINFCONTEXT ContextIn, PINFCONTEXT ContextOut)
INFSTATUS	InfpFindFirstMatchLine (PINFCONTEXT ContextIn, PCWSTR Key, PINFCONTEXT ContextOut)
INFSTATUS	InfpFindNextMatchLine (PINFCONTEXT ContextIn, PCWSTR Key, PINFCONTEXT ContextOut)
LONG	InfpGetLineCount (HINF InfHandle, PCWSTR Section)
LONG	InfpGetFieldCount (PINFCONTEXT Context)
INFSTATUS	InfpGetBinaryField (PINFCONTEXT Context, ULONG FieldIndex, PUCHAR ReturnBuffer, ULONG ReturnBufferSize, PULONG RequiredSize)
INFSTATUS	InfpGetIntField (PINFCONTEXT Context, ULONG FieldIndex, INT *IntegerValue)
INFSTATUS	InfpGetMultiSzField (PINFCONTEXT Context, ULONG FieldIndex, PWSTR ReturnBuffer, ULONG ReturnBufferSize, PULONG RequiredSize)
INFSTATUS	InfpGetStringField (PINFCONTEXT Context, ULONG FieldIndex, PWSTR ReturnBuffer, ULONG ReturnBufferSize, PULONG RequiredSize)
INFSTATUS	InfpGetData (PINFCONTEXT Context, PWCHAR *Key, PWCHAR *Data)
INFSTATUS	InfpGetDataField (PINFCONTEXT Context, ULONG FieldIndex, PWCHAR *Data)
VOID	InfpFreeContext (PINFCONTEXT Context)

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 13 of file infget.c.

Function Documentation

InfpFindFirstLine()

INFSTATUS InfpFindFirstLine	(	PINFCACHE	Cache,
		PCWSTR	Section,
		PCWSTR	Key,
		PINFCONTEXT *	Context
	)

Definition at line 173 of file infget.c.

{
  PINFCACHESECTION CacheSection;
  PINFCACHELINE CacheLine;
 
  if (Cache == NULL || Section == NULL || Context == NULL)
    {
      DPRINT1("Invalid parameter\n");
      return INF_STATUS_INVALID_PARAMETER;
    }
 
  CacheSection = InfpFindSection(Cache, Section);
  if (NULL == CacheSection)
    {
      DPRINT("Section not found\n");
      return INF_STATUS_NOT_FOUND;
    }
 
  if (Key != NULL)
    {
      CacheLine = InfpFindKeyLine(CacheSection, Key);
    }
  else
    {
      CacheLine = CacheSection->FirstLine;
    }
 
  if (NULL == CacheLine)
    {
      DPRINT("Key not found\n");
      return INF_STATUS_NOT_FOUND;
    }
 
  *Context = MALLOC(sizeof(INFCONTEXT));
  if (NULL == *Context)
    {
      DPRINT1("MALLOC() failed\n");
      return INF_STATUS_NO_MEMORY;
    }
  (*Context)->Inf = (PVOID)Cache;
  (*Context)->Section = CacheSection->Id;
  (*Context)->Line = CacheLine->Id;
 
  return INF_STATUS_SUCCESS;
}

Referenced by InfFindFirstLine(), InfHostFindFirstLine(), and InfpGetSubstitutionString().

InfpFindFirstMatchLine()

INFSTATUS InfpFindFirstMatchLine	(	PINFCONTEXT	ContextIn,
		PCWSTR	Key,
		PINFCONTEXT	ContextOut
	)

Definition at line 251 of file infget.c.

{
  PINFCACHESECTION Section;
  PINFCACHELINE CacheLine;
 
  if (ContextIn == NULL || ContextOut == NULL || Key == NULL || *Key == 0)
    return INF_STATUS_INVALID_PARAMETER;
 
  Section = InfpGetSectionForContext(ContextIn);
  if (Section == NULL)
      return INF_STATUS_INVALID_PARAMETER;
 
  CacheLine = Section->FirstLine;
  while (CacheLine != NULL)
    {
      if (CacheLine->Key != NULL && strcmpiW (CacheLine->Key, Key) == 0)
        {
 
          if (ContextIn != ContextOut)
            {
              ContextOut->Inf = ContextIn->Inf;
              ContextOut->Section = ContextIn->Section;
            }
          ContextOut->Line = CacheLine->Id;
 
          return INF_STATUS_SUCCESS;
        }
 
      CacheLine = CacheLine->Next;
    }
 
  return INF_STATUS_NOT_FOUND;
}

Referenced by InfFindFirstMatchLine(), and InfHostFindFirstMatchLine().

InfpFindNextLine()

INFSTATUS InfpFindNextLine	(	PINFCONTEXT	ContextIn,
		PINFCONTEXT	ContextOut
	)

Definition at line 224 of file infget.c.

{
  PINFCACHELINE CacheLine;
 
  if (ContextIn == NULL || ContextOut == NULL)
    return INF_STATUS_INVALID_PARAMETER;
 
  CacheLine = InfpGetLineForContext(ContextIn);
  if (CacheLine == NULL)
    return INF_STATUS_INVALID_PARAMETER;
 
  if (CacheLine->Next == NULL)
    return INF_STATUS_NOT_FOUND;
 
  if (ContextIn != ContextOut)
    {
      ContextOut->Inf = ContextIn->Inf;
      ContextOut->Section = ContextIn->Section;
    }
  ContextOut->Line = CacheLine->Next->Id;
 
  return INF_STATUS_SUCCESS;
}

Referenced by InfFindNextLine(), and InfHostFindNextLine().

InfpFindNextMatchLine()

INFSTATUS InfpFindNextMatchLine	(	PINFCONTEXT	ContextIn,
		PCWSTR	Key,
		PINFCONTEXT	ContextOut
	)

Definition at line 289 of file infget.c.

{
  PINFCACHESECTION Section;
  PINFCACHELINE CacheLine;
 
  if (ContextIn == NULL || ContextOut == NULL || Key == NULL || *Key == 0)
    return INF_STATUS_INVALID_PARAMETER;
 
  Section = InfpGetSectionForContext(ContextIn);
  if (Section == NULL)
      return INF_STATUS_INVALID_PARAMETER;
 
  CacheLine = InfpGetLineForContext(ContextIn);
  while (CacheLine != NULL)
    {
      if (CacheLine->Key != NULL && strcmpiW (CacheLine->Key, Key) == 0)
        {
 
          if (ContextIn != ContextOut)
            {
              ContextOut->Inf = ContextIn->Inf;
              ContextOut->Section = ContextIn->Section;
            }
          ContextOut->Line = CacheLine->Id;
 
          return INF_STATUS_SUCCESS;
        }
 
      CacheLine = CacheLine->Next;
    }
 
  return INF_STATUS_NOT_FOUND;
}

Referenced by InfFindNextMatchLine(), and InfHostFindNextMatchLine().

InfpFreeContext()

VOID InfpFreeContext

(

PINFCONTEXT

Context

)

Definition at line 679 of file infget.c.

{
  FREE(Context);
}

Referenced by InfFreeContext(), InfHostFreeContext(), and InfpGetSubstitutionString().

InfpGetBinaryField()

INFSTATUS InfpGetBinaryField	(	PINFCONTEXT	Context,
		ULONG	FieldIndex,
		PUCHAR	ReturnBuffer,
		ULONG	ReturnBufferSize,
		PULONG	RequiredSize
	)

Definition at line 377 of file infget.c.

{
  PINFCACHELINE CacheLine;
  PINFCACHEFIELD CacheField;
  ULONG Index;
  ULONG Size;
  PUCHAR Ptr;
 
  if (Context == NULL || FieldIndex == 0)
    {
      DPRINT("Invalid parameter\n");
      return INF_STATUS_INVALID_PARAMETER;
    }
 
  if (RequiredSize != NULL)
    *RequiredSize = 0;
 
  CacheLine = InfpGetLineForContext(Context);
 
  if (FieldIndex > (ULONG)CacheLine->FieldCount)
    return INF_STATUS_NOT_FOUND;
 
  CacheField = CacheLine->FirstField;
  for (Index = 1; Index < FieldIndex; Index++)
    CacheField = CacheField->Next;
 
  Size = (ULONG)CacheLine->FieldCount - FieldIndex + 1;
 
  if (RequiredSize != NULL)
    *RequiredSize = Size;
 
  if (ReturnBuffer != NULL)
    {
      if (ReturnBufferSize < Size)
        return INF_STATUS_BUFFER_OVERFLOW;
 
      /* Copy binary data */
      Ptr = ReturnBuffer;
      while (CacheField != NULL)
        {
          *Ptr = (UCHAR)strtoulW(CacheField->Data, NULL, 16);
 
          Ptr++;
          CacheField = CacheField->Next;
        }
    }
 
  return INF_STATUS_SUCCESS;
}

Referenced by InfGetBinaryField(), and InfHostGetBinaryField().

InfpGetData()

INFSTATUS InfpGetData	(	PINFCONTEXT	Context,
		PWCHAR *	Key,
		PWCHAR *	Data
	)

Definition at line 610 of file infget.c.

{
  PINFCACHELINE CacheKey;
 
  if (Context == NULL || Data == NULL)
    {
      DPRINT("Invalid parameter\n");
      return INF_STATUS_INVALID_PARAMETER;
    }
 
  CacheKey = InfpGetLineForContext(Context);
  if (Key != NULL)
    *Key = CacheKey->Key;
 
  if (Data != NULL)
    {
      if (CacheKey->FirstField == NULL)
        {
          *Data = NULL;
        }
      else
        {
          *Data = CacheKey->FirstField->Data;
        }
    }
 
  return INF_STATUS_SUCCESS;
}

Referenced by InfGetData(), InfHostGetData(), and InfpGetSubstitutionString().

InfpGetDataField()

INFSTATUS InfpGetDataField	(	PINFCONTEXT	Context,
		ULONG	FieldIndex,
		PWCHAR *	Data
	)

Definition at line 643 of file infget.c.

{
  PINFCACHELINE CacheLine;
  PINFCACHEFIELD CacheField;
  ULONG Index;
 
  if (Context == NULL || Data == NULL)
    {
      DPRINT("Invalid parameter\n");
      return INF_STATUS_INVALID_PARAMETER;
    }
 
  CacheLine = InfpGetLineForContext(Context);
 
  if (FieldIndex > (ULONG)CacheLine->FieldCount)
    return INF_STATUS_INVALID_PARAMETER;
 
  if (FieldIndex == 0)
    {
      *Data = CacheLine->Key;
    }
  else
    {
      CacheField = CacheLine->FirstField;
      for (Index = 1; Index < FieldIndex; Index++)
        CacheField = CacheField->Next;
 
      *Data = CacheField->Data;
    }
 
  return INF_STATUS_SUCCESS;
}

Referenced by InfGetDataField(), and InfHostGetDataField().

InfpGetFieldCount()

LONG InfpGetFieldCount

(

PINFCONTEXT

Context

)

Definition at line 365 of file infget.c.

{
  PINFCACHELINE Line;
 
  Line = InfpGetLineForContext(Context);
  if (Line == NULL)
    return 0;
  return Line->FieldCount;
}

Referenced by InfGetFieldCount(), and InfHostGetFieldCount().

InfpGetIntField()

INFSTATUS InfpGetIntField	(	PINFCONTEXT	Context,
		ULONG	FieldIndex,
		INT *	IntegerValue
	)

Definition at line 433 of file infget.c.

{
  PINFCACHELINE CacheLine;
  PINFCACHEFIELD CacheField;
  ULONG Index;
  PWCHAR Ptr;
 
  if (Context == NULL || IntegerValue == NULL)
    {
      DPRINT("Invalid parameter\n");
      return INF_STATUS_INVALID_PARAMETER;
    }
 
  CacheLine = InfpGetLineForContext(Context);
 
  if (FieldIndex > (ULONG)CacheLine->FieldCount)
    {
      DPRINT("Invalid parameter\n");
      return INF_STATUS_INVALID_PARAMETER;
    }
 
  if (FieldIndex == 0)
    {
      Ptr = CacheLine->Key;
    }
  else
    {
      CacheField = CacheLine->FirstField;
      for (Index = 1; Index < FieldIndex; Index++)
        CacheField = CacheField->Next;
 
      Ptr = CacheField->Data;
    }
 
  *IntegerValue = (LONG)strtolW(Ptr, NULL, 0);
 
  return INF_STATUS_SUCCESS;
}

Referenced by InfGetIntField(), and InfHostGetIntField().

InfpGetLineCount()

LONG InfpGetLineCount	(	HINF	InfHandle,
		PCWSTR	Section
	)

Definition at line 327 of file infget.c.

{
  PINFCACHE Cache;
  PINFCACHESECTION CacheSection;
 
  if (InfHandle == NULL || Section == NULL)
    {
      DPRINT("Invalid parameter\n");
      return -1;
    }
 
  Cache = (PINFCACHE)InfHandle;
 
  /* Iterate through list of sections */
  CacheSection = Cache->FirstSection;
  while (CacheSection != NULL)
    {
      /* Are the section names the same? */
      if (strcmpiW(CacheSection->Name, Section) == 0)
        {
          return CacheSection->LineCount;
        }
 
      /* Get the next section */
      CacheSection = CacheSection->Next;
    }
 
  DPRINT("Section not found\n");
 
  return -1;
}

Referenced by InfGetLineCount(), and InfHostGetLineCount().

InfpGetMultiSzField()

INFSTATUS InfpGetMultiSzField	(	PINFCONTEXT	Context,
		ULONG	FieldIndex,
		PWSTR	ReturnBuffer,
		ULONG	ReturnBufferSize,
		PULONG	RequiredSize
	)

Definition at line 476 of file infget.c.

{
  PINFCACHELINE CacheLine;
  PINFCACHEFIELD CacheField;
  PINFCACHEFIELD FieldPtr;
  ULONG Index;
  ULONG Size;
  PWCHAR Ptr;
 
  if (Context == NULL || FieldIndex == 0)
    {
      DPRINT("Invalid parameter\n");
      return INF_STATUS_INVALID_PARAMETER;
    }
 
  if (RequiredSize != NULL)
    *RequiredSize = 0;
 
  CacheLine = InfpGetLineForContext(Context);
 
  if (FieldIndex > (ULONG)CacheLine->FieldCount)
    return INF_STATUS_INVALID_PARAMETER;
 
  CacheField = CacheLine->FirstField;
  for (Index = 1; Index < FieldIndex; Index++)
    CacheField = CacheField->Next;
 
  /* Calculate the required buffer size */
  FieldPtr = CacheField;
  Size = 0;
  while (FieldPtr != NULL)
    {
      Size += ((ULONG)strlenW(FieldPtr->Data) + 1);
      FieldPtr = FieldPtr->Next;
    }
  Size++;
 
  if (RequiredSize != NULL)
    *RequiredSize = Size;
 
  if (ReturnBuffer != NULL)
    {
      if (ReturnBufferSize < Size)
        return INF_STATUS_BUFFER_OVERFLOW;
 
      /* Copy multi-sz string */
      Ptr = ReturnBuffer;
      FieldPtr = CacheField;
      while (FieldPtr != NULL)
        {
          Size = (ULONG)strlenW(FieldPtr->Data) + 1;
 
          strcpyW(Ptr, FieldPtr->Data);
 
          Ptr = Ptr + Size;
          FieldPtr = FieldPtr->Next;
        }
      *Ptr = 0;
    }
 
  return INF_STATUS_SUCCESS;
}

Referenced by InfGetMultiSzField(), and InfHostGetMultiSzField().

InfpGetStringField()

INFSTATUS InfpGetStringField	(	PINFCONTEXT	Context,
		ULONG	FieldIndex,
		PWSTR	ReturnBuffer,
		ULONG	ReturnBufferSize,
		PULONG	RequiredSize
	)

Definition at line 545 of file infget.c.

{
  PINFCACHELINE CacheLine;
  PINFCACHEFIELD CacheField;
  ULONG Index;
  PWCHAR Ptr;
  SIZE_T Size;
 
  if (Context == NULL)
    {
      DPRINT("Invalid parameter\n");
      return INF_STATUS_INVALID_PARAMETER;
    }
 
  if (RequiredSize != NULL)
    *RequiredSize = 0;
 
  CacheLine = InfpGetLineForContext(Context);
 
  if (FieldIndex > (ULONG)CacheLine->FieldCount)
    return INF_STATUS_INVALID_PARAMETER;
 
  if (FieldIndex == 0)
    {
      Ptr = CacheLine->Key;
    }
  else
    {
      CacheField = CacheLine->FirstField;
      for (Index = 1; Index < FieldIndex; Index++)
        CacheField = CacheField->Next;
 
      Ptr = CacheField->Data;
    }
 
//  Size = (ULONG)strlenW(Ptr) + 1;
  Size = InfpSubstituteString(Context->Inf,
                              Ptr,
                              NULL,
                              0);
 
  if (RequiredSize != NULL)
    *RequiredSize = (ULONG)Size + 1;
 
  if (ReturnBuffer != NULL)
    {
      if (ReturnBufferSize <= Size)
        return INF_STATUS_BUFFER_OVERFLOW;
 
//      strcpyW(ReturnBuffer, Ptr);
      InfpSubstituteString(Context->Inf,
                           Ptr,
                           ReturnBuffer,
                           ReturnBufferSize);
    }
 
  return INF_STATUS_SUCCESS;
}

Referenced by InfGetStringField(), and InfHostGetStringField().

InfpGetSubstitutionString()

static PCWSTR InfpGetSubstitutionString ( PINFCACHE  Inf, PCWSTR  str, size_t *  len, BOOL  no_trailing_slash  )

static

Definition at line 37 of file infget.c.

{
    static const WCHAR percent = '%';
 
    INFSTATUS Status = INF_STATUS_NOT_FOUND;
    PINFCONTEXT Context = NULL;
    PWCHAR Data = NULL;
    WCHAR ValueName[MAX_INF_STRING_LENGTH +1];
    WCHAR StringLangId[] = L"Strings.XXXX";
 
    if (!*len)  /* empty string (%%) is replaced by single percent */
    {
        *len = 1;
        return &percent;
    }
 
    memcpy(ValueName, str, *len * sizeof(WCHAR));
    ValueName[*len] = 0;
 
    DPRINT("Value name: %S\n", ValueName);
 
    if (Inf->LanguageId != 0)
    {
        ShortToHex(&StringLangId[sizeof("Strings.") - 1],
                   Inf->LanguageId);
 
        Status = InfpFindFirstLine(Inf,
                                   StringLangId,
                                   ValueName,
                                   &Context);
        if (Status != INF_STATUS_SUCCESS)
        {
            ShortToHex(&StringLangId[sizeof("Strings.") - 1],
                       MAKELANGID(PRIMARYLANGID(Inf->LanguageId), SUBLANG_NEUTRAL));
 
            Status = InfpFindFirstLine(Inf,
                                       StringLangId,
                                       ValueName,
                                       &Context);
            if (Status != INF_STATUS_SUCCESS)
            {
                Status = InfpFindFirstLine(Inf,
                                           L"Strings",
                                           ValueName,
                                           &Context);
            }
        }
    }
    else
    {
        Status = InfpFindFirstLine(Inf,
                                   L"Strings",
                                   ValueName,
                                   &Context);
    }
 
    if (Status != INF_STATUS_SUCCESS || Context == NULL)
        return NULL;
 
    Status = InfpGetData(Context,
                         NULL,
                         &Data);
 
    InfpFreeContext(Context);
 
    if (Status == STATUS_SUCCESS)
    {
        *len = strlenW(Data);
        DPRINT("Substitute: %S  Length: %zu\n", Data, *len);
        return Data;
    }
 
    return NULL;
}

Referenced by InfpSubstituteString().

InfpSubstituteString() [1/2]

static size_t InfpSubstituteString ( PINFCACHE  Inf, const WCHAR *  text, WCHAR *  buffer, size_t  size  )

static

Referenced by InfpGetStringField().

InfpSubstituteString() [2/2]

static size_t InfpSubstituteString ( PINFCACHE  Inf, PCWSTR  text, PWSTR  buffer, size_t  size  )

static

Definition at line 120 of file infget.c.

{
    const WCHAR *start, *subst, *p;
    size_t len, total = 0;
    int inside = 0;
 
    if (!buffer) size = MAX_INF_STRING_LENGTH + 1;
    for (p = start = text; *p; p++)
    {
        if (*p != '%') continue;
        inside = !inside;
        if (inside)  /* start of a %xx% string */
        {
            len = (p - start);
            if (len > size - 1) len = size - 1;
            if (buffer) memcpy( buffer + total, start, len * sizeof(WCHAR) );
            total += len;
            size -= len;
            start = p;
        }
        else /* end of the %xx% string, find substitution */
        {
            len = (p - start - 1);
            subst = InfpGetSubstitutionString( Inf, start + 1, &len, p[1] == '\\' );
            if (!subst)
            {
                subst = start;
                len = (p - start + 1);
            }
            if (len > size - 1) len = size - 1;
            if (buffer) memcpy( buffer + total, subst, len * sizeof(WCHAR) );
            total += len;
            size -= len;
            start = p + 1;
        }
    }
 
    if (start != p) /* unfinished string, copy it */
    {
        len = (unsigned int)(p - start);
        if (len > size - 1) len = size - 1;
        if (buffer) memcpy( buffer + total, start, len * sizeof(WCHAR) );
        total += len;
    }
    if (buffer && size) buffer[total] = 0;
    return total;
}

ShortToHex()

static void ShortToHex ( PWCHAR  Buffer, USHORT  Value  )

static

Definition at line 23 of file infget.c.

{
    WCHAR HexDigits[] = L"0123456789abcdef";
 
    Buffer[0] = HexDigits[Value >> 12 & 0xf];
    Buffer[1] = HexDigits[Value >>  8 & 0xf];
    Buffer[2] = HexDigits[Value >>  4 & 0xf];
    Buffer[3] = HexDigits[Value >>  0 & 0xf];
}

Referenced by InfpGetSubstitutionString().