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authorkx <kx@radix.pro>2024-06-04 06:43:08 +0300
committerkx <kx@radix.pro>2024-06-04 06:43:08 +0300
commit7e2ccccace24636f29ddc210b94606abd4c7e42b (patch)
tree545d43ea12671048956cafeb12303e84d601e571 /BaseTools/Source/C/Common/SimpleFileParsing.c
parent27b044605cd5f6b33a3d231576003850b3fe305b (diff)
downloadedk2-trunk.tar.xz
Renormalized end-of-lines from master@27b044605cd5f6b33a3d231576003850b3fe305btrunk
Diffstat (limited to 'BaseTools/Source/C/Common/SimpleFileParsing.c')
-rw-r--r--BaseTools/Source/C/Common/SimpleFileParsing.c2646
1 files changed, 1323 insertions, 1323 deletions
diff --git a/BaseTools/Source/C/Common/SimpleFileParsing.c b/BaseTools/Source/C/Common/SimpleFileParsing.c
index 382cd406cb..2dcc865931 100644
--- a/BaseTools/Source/C/Common/SimpleFileParsing.c
+++ b/BaseTools/Source/C/Common/SimpleFileParsing.c
@@ -1,1323 +1,1323 @@
-/** @file
-Generic but simple file parsing routines.
-
-Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
-SPDX-License-Identifier: BSD-2-Clause-Patent
-
---*/
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <ctype.h>
-
-#include "CommonLib.h"
-#include "EfiUtilityMsgs.h"
-#include "SimpleFileParsing.h"
-
-#ifndef MAX_PATH
-#define MAX_PATH 255
-#endif
-//
-// just in case we get in an endless loop.
-//
-#define MAX_NEST_DEPTH 20
-//
-// number of wchars
-//
-#define MAX_STRING_IDENTIFIER_NAME 100
-
-#define T_CHAR_SPACE ' '
-#define T_CHAR_NULL 0
-#define T_CHAR_CR '\r'
-#define T_CHAR_TAB '\t'
-#define T_CHAR_LF '\n'
-#define T_CHAR_SLASH '/'
-#define T_CHAR_BACKSLASH '\\'
-#define T_CHAR_DOUBLE_QUOTE '"'
-#define T_CHAR_LC_X 'x'
-#define T_CHAR_0 '0'
-#define T_CHAR_STAR '*'
-
-//
-// We keep a linked list of these for the source files we process
-//
-typedef struct _SOURCE_FILE {
- FILE *Fptr;
- CHAR8 *FileBuffer;
- CHAR8 *FileBufferPtr;
- UINTN FileSize;
- CHAR8 FileName[MAX_PATH];
- UINTN LineNum;
- BOOLEAN EndOfFile;
- BOOLEAN SkipToHash;
- struct _SOURCE_FILE *Previous;
- struct _SOURCE_FILE *Next;
- CHAR8 ControlCharacter;
-} SOURCE_FILE;
-
-typedef struct {
- CHAR8 *FileBufferPtr;
-} FILE_POSITION;
-
-//
-// Keep all our module globals in this structure
-//
-STATIC struct {
- SOURCE_FILE SourceFile;
- BOOLEAN VerboseFile;
- BOOLEAN VerboseToken;
-} mGlobals;
-
-STATIC
-UINTN
-t_strcmp (
- CHAR8 *Buffer,
- CHAR8 *Str
- );
-
-STATIC
-UINTN
-t_strncmp (
- CHAR8 *Str1,
- CHAR8 *Str2,
- INTN Len
- );
-
-STATIC
-UINTN
-t_strlen (
- CHAR8 *Str
- );
-
-STATIC
-VOID
-RewindFile (
- SOURCE_FILE *SourceFile
- );
-
-STATIC
-BOOLEAN
-IsWhiteSpace (
- SOURCE_FILE *SourceFile
- );
-
-STATIC
-UINTN
-SkipWhiteSpace (
- SOURCE_FILE *SourceFile
- );
-
-STATIC
-BOOLEAN
-EndOfFile (
- SOURCE_FILE *SourceFile
- );
-
-STATIC
-VOID
-PreprocessFile (
- SOURCE_FILE *SourceFile
- );
-
-STATIC
-CHAR8 *
-t_strcpy (
- CHAR8 *Dest,
- CHAR8 *Src
- );
-
-STATIC
-STATUS
-ProcessIncludeFile (
- SOURCE_FILE *SourceFile,
- SOURCE_FILE *ParentSourceFile
- );
-
-STATIC
-STATUS
-ProcessFile (
- SOURCE_FILE *SourceFile
- );
-
-STATIC
-STATUS
-GetFilePosition (
- FILE_POSITION *Fpos
- );
-
-STATIC
-STATUS
-SetFilePosition (
- FILE_POSITION *Fpos
- );
-
-/**
- @retval STATUS_SUCCESS always
-**/
-STATUS
-SFPInit (
- VOID
- )
-{
- memset ((VOID *) &mGlobals, 0, sizeof (mGlobals));
- return STATUS_SUCCESS;
-}
-
-/**
- Return the line number of the file we're parsing. Used
- for error reporting purposes.
-
- @return The line number, or 0 if no file is being processed
-**/
-UINTN
-SFPGetLineNumber (
- VOID
- )
-{
- return mGlobals.SourceFile.LineNum;
-}
-
-/**
- Return the name of the file we're parsing. Used
- for error reporting purposes.
-
- @return A pointer to the file name. Null if no file is being
- processed.
-**/
-CHAR8 *
-SFPGetFileName (
- VOID
- )
-{
- if (mGlobals.SourceFile.FileName[0]) {
- return mGlobals.SourceFile.FileName;
- }
-
- return NULL;
-}
-
-/**
- Open a file for parsing.
-
- @param FileName name of the file to parse
-**/
-STATUS
-SFPOpenFile (
- CHAR8 *FileName
- )
-{
- STATUS Status;
- t_strcpy (mGlobals.SourceFile.FileName, FileName);
- Status = ProcessIncludeFile (&mGlobals.SourceFile, NULL);
- return Status;
-}
-
-/**
- Check to see if the specified token is found at
- the current position in the input file.
-
- @note:
- We do a simple string comparison on this function. It is
- the responsibility of the caller to ensure that the token
- is not a subset of some other token.
-
- The file pointer is advanced past the token in the input file.
-
- @param Str the token to look for
-
- @retval TRUE the token is next
- @retval FALSE the token is not next
-**/
-BOOLEAN
-SFPIsToken (
- CHAR8 *Str
- )
-{
- UINTN Len;
- SkipWhiteSpace (&mGlobals.SourceFile);
- if (EndOfFile (&mGlobals.SourceFile)) {
- return FALSE;
- }
-
- if ((Len = t_strcmp (mGlobals.SourceFile.FileBufferPtr, Str)) > 0) {
- mGlobals.SourceFile.FileBufferPtr += Len;
- if (mGlobals.VerboseToken) {
- printf ("Token: '%s'\n", Str);
- }
-
- return TRUE;
- }
-
- return FALSE;
-}
-
-/**
- Check to see if the specified keyword is found at
- the current position in the input file.
-
- @note:
- A keyword is defined as a "special" string that has a non-alphanumeric
- character following it.
-
- @param Str keyword to look for
-
- @retval TRUE the keyword is next
- @retval FALSE the keyword is not next
-**/
-BOOLEAN
-SFPIsKeyword (
- CHAR8 *Str
- )
-{
- UINTN Len;
- SkipWhiteSpace (&mGlobals.SourceFile);
- if (EndOfFile (&mGlobals.SourceFile)) {
- return FALSE;
- }
-
- if ((Len = t_strcmp (mGlobals.SourceFile.FileBufferPtr, Str)) > 0) {
- if (isalnum ((int)mGlobals.SourceFile.FileBufferPtr[Len])) {
- return FALSE;
- }
-
- mGlobals.SourceFile.FileBufferPtr += Len;
- if (mGlobals.VerboseToken) {
- printf ("Token: '%s'\n", Str);
- }
-
- return TRUE;
- }
-
- return FALSE;
-}
-
-/**
- Get the next token from the input stream.
-
- @note:
- Preceding white space is ignored.
- The parser's buffer pointer is advanced past the end of the
- token.
-
- @param Str pointer to a copy of the next token
- @param Len size of buffer pointed to by Str
-
- @retval TRUE next token successfully returned
- @retval FALSE otherwise
-**/
-BOOLEAN
-SFPGetNextToken (
- CHAR8 *Str,
- UINTN Len
- )
-{
- UINTN Index;
- CHAR8 TempChar;
-
- SkipWhiteSpace (&mGlobals.SourceFile);
- if (EndOfFile (&mGlobals.SourceFile)) {
- return FALSE;
- }
- //
- // Have to have enough string for at least one char and a null-terminator
- //
- if (Len < 2) {
- return FALSE;
- }
- //
- // Look at the first character. If it's an identifier, then treat it
- // as such
- //
- TempChar = mGlobals.SourceFile.FileBufferPtr[0];
- if (((TempChar >= 'a') && (TempChar <= 'z')) || ((TempChar >= 'A') && (TempChar <= 'Z')) || (TempChar == '_')) {
- Str[0] = TempChar;
- mGlobals.SourceFile.FileBufferPtr++;
- Index = 1;
- while (!EndOfFile (&mGlobals.SourceFile) && (Index < Len)) {
- TempChar = mGlobals.SourceFile.FileBufferPtr[0];
- if (((TempChar >= 'a') && (TempChar <= 'z')) ||
- ((TempChar >= 'A') && (TempChar <= 'Z')) ||
- ((TempChar >= '0') && (TempChar <= '9')) ||
- (TempChar == '_')
- ) {
- Str[Index] = mGlobals.SourceFile.FileBufferPtr[0];
- mGlobals.SourceFile.FileBufferPtr++;
- Index++;
- } else {
- //
- // Invalid character for symbol name, so break out
- //
- break;
- }
- }
- //
- // Null terminate and return success
- //
- Str[Index] = 0;
- return TRUE;
- } else if ((TempChar == ')') || (TempChar == '(') || (TempChar == '*')) {
- Str[0] = mGlobals.SourceFile.FileBufferPtr[0];
- mGlobals.SourceFile.FileBufferPtr++;
- Str[1] = 0;
- return TRUE;
- } else {
- //
- // Everything else is white-space (or EOF) separated
- //
- Index = 0;
- while (!EndOfFile (&mGlobals.SourceFile) && (Index < Len)) {
- if (IsWhiteSpace (&mGlobals.SourceFile)) {
- if (Index > 0) {
- Str[Index] = 0;
- return TRUE;
- }
-
- return FALSE;
- } else {
- Str[Index] = mGlobals.SourceFile.FileBufferPtr[0];
- mGlobals.SourceFile.FileBufferPtr++;
- Index++;
- }
- }
- //
- // See if we just ran out of file contents, but did find a token
- //
- if ((Index > 0) && EndOfFile (&mGlobals.SourceFile)) {
- Str[Index] = 0;
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-/**
- Parse a GUID from the input stream. Stop when you discover white space.
-
- @param Str pointer to a copy of the next token
- @param Len size of buffer pointed to by Str
-
- @retval TRUE GUID string returned successfully
- @retval FALSE otherwise
-**/
-BOOLEAN
-SFPGetGuidToken (
- CHAR8 *Str,
- UINT32 Len
- )
-{
- UINT32 Index;
- SkipWhiteSpace (&mGlobals.SourceFile);
- if (EndOfFile (&mGlobals.SourceFile)) {
- return FALSE;
- }
-
- Index = 0;
- while (!EndOfFile (&mGlobals.SourceFile) && (Index < Len)) {
- if (IsWhiteSpace (&mGlobals.SourceFile)) {
- if (Index > 0) {
- Str[Index] = 0;
- return TRUE;
- }
-
- return FALSE;
- } else {
- Str[Index] = mGlobals.SourceFile.FileBufferPtr[0];
- mGlobals.SourceFile.FileBufferPtr++;
- Index++;
- }
- }
-
- return FALSE;
-}
-
-BOOLEAN
-SFPSkipToToken (
- CHAR8 *Str
- )
-{
- UINTN Len;
- CHAR8 *SavePos;
- Len = t_strlen (Str);
- SavePos = mGlobals.SourceFile.FileBufferPtr;
- SkipWhiteSpace (&mGlobals.SourceFile);
- while (!EndOfFile (&mGlobals.SourceFile)) {
- if (t_strncmp (Str, mGlobals.SourceFile.FileBufferPtr, Len) == 0) {
- mGlobals.SourceFile.FileBufferPtr += Len;
- return TRUE;
- }
-
- mGlobals.SourceFile.FileBufferPtr++;
- SkipWhiteSpace (&mGlobals.SourceFile);
- }
-
- mGlobals.SourceFile.FileBufferPtr = SavePos;
- return FALSE;
-}
-
-/**
- Check the token at the current file position for a numeric value.
- May be either decimal or hex.
-
- @param Value pointer where to store the value
-
- @retval FALSE current token is not a number
- @retval TRUE current token is a number
-**/
-BOOLEAN
-SFPGetNumber (
- UINTN *Value
- )
-{
- int Val;
-
- SkipWhiteSpace (&mGlobals.SourceFile);
- if (EndOfFile (&mGlobals.SourceFile)) {
- return FALSE;
- }
-
- if (isdigit ((int)mGlobals.SourceFile.FileBufferPtr[0])) {
- //
- // Check for hex value
- //
- if ((mGlobals.SourceFile.FileBufferPtr[0] == T_CHAR_0) && (mGlobals.SourceFile.FileBufferPtr[1] == T_CHAR_LC_X)) {
- if (!isxdigit ((int)mGlobals.SourceFile.FileBufferPtr[2])) {
- return FALSE;
- }
-
- mGlobals.SourceFile.FileBufferPtr += 2;
- sscanf (mGlobals.SourceFile.FileBufferPtr, "%x", &Val);
- *Value = (UINT32) Val;
- while (isxdigit ((int)mGlobals.SourceFile.FileBufferPtr[0])) {
- mGlobals.SourceFile.FileBufferPtr++;
- }
-
- return TRUE;
- } else {
- *Value = atoi (mGlobals.SourceFile.FileBufferPtr);
- while (isdigit ((int)mGlobals.SourceFile.FileBufferPtr[0])) {
- mGlobals.SourceFile.FileBufferPtr++;
- }
-
- return TRUE;
- }
- } else {
- return FALSE;
- }
-}
-
-/**
- Close the file being parsed.
-
- @retval STATUS_SUCCESS the file was closed
- @retval STATUS_ERROR no file is currently open
-**/
-STATUS
-SFPCloseFile (
- VOID
- )
-{
- if (mGlobals.SourceFile.FileBuffer != NULL) {
- free (mGlobals.SourceFile.FileBuffer);
- memset (&mGlobals.SourceFile, 0, sizeof (mGlobals.SourceFile));
- return STATUS_SUCCESS;
- }
-
- return STATUS_ERROR;
-}
-
-/**
- Given a source file, open the file and parse it
-
- @param SourceFile name of file to parse
- @param ParentSourceFile for error reporting purposes, the file that #included SourceFile.
-
- @return Standard status.
-**/
-STATIC
-STATUS
-ProcessIncludeFile (
- SOURCE_FILE *SourceFile,
- SOURCE_FILE *ParentSourceFile
- )
-{
- STATIC UINTN NestDepth = 0;
- CHAR8 FoundFileName[MAX_PATH];
- STATUS Status;
-
- Status = STATUS_SUCCESS;
- NestDepth++;
- //
- // Print the file being processed. Indent so you can tell the include nesting
- // depth.
- //
- if (mGlobals.VerboseFile) {
- fprintf (stdout, "%*cProcessing file '%s'\n", (int)NestDepth * 2, ' ', SourceFile->FileName);
- fprintf (stdout, "Parent source file = '%s'\n", ParentSourceFile->FileName);
- }
-
- //
- // Make sure we didn't exceed our maximum nesting depth
- //
- if (NestDepth > MAX_NEST_DEPTH) {
- Error (NULL, 0, 3001, "Not Supported", "%s exceeds max nesting depth (%u)", SourceFile->FileName, (unsigned) NestDepth);
- Status = STATUS_ERROR;
- goto Finish;
- }
- //
- // Try to open the file locally, and if that fails try along our include paths.
- //
- strcpy (FoundFileName, SourceFile->FileName);
- if ((SourceFile->Fptr = fopen (LongFilePath (FoundFileName), "rb")) == NULL) {
- return STATUS_ERROR;
- }
- //
- // Process the file found
- //
- ProcessFile (SourceFile);
-Finish:
- //
- // Close open files and return status
- //
- if (SourceFile->Fptr != NULL) {
- fclose (SourceFile->Fptr);
- SourceFile->Fptr = NULL;
- }
-
- return Status;
-}
-
-/**
- Given a source file that's been opened, read the contents into an internal
- buffer and pre-process it to remove comments.
-
- @param SourceFile structure containing info on the file to process
-
- @return Standard status.
-**/
-STATIC
-STATUS
-ProcessFile (
- SOURCE_FILE *SourceFile
- )
-{
- //
- // Get the file size, and then read the entire thing into memory.
- // Allocate extra space for a terminator character.
- //
- fseek (SourceFile->Fptr, 0, SEEK_END);
- SourceFile->FileSize = ftell (SourceFile->Fptr);
- if (mGlobals.VerboseFile) {
- printf ("FileSize = %u (0x%X)\n", (unsigned) SourceFile->FileSize, (unsigned) SourceFile->FileSize);
- }
-
- fseek (SourceFile->Fptr, 0, SEEK_SET);
- SourceFile->FileBuffer = (CHAR8 *) malloc (SourceFile->FileSize + sizeof (CHAR8 ));
- if (SourceFile->FileBuffer == NULL) {
- Error (NULL, 0, 4001, "Resource: memory cannot be allocated", NULL);
- return STATUS_ERROR;
- }
-
- fread ((VOID *) SourceFile->FileBuffer, SourceFile->FileSize, 1, SourceFile->Fptr);
- SourceFile->FileBuffer[(SourceFile->FileSize / sizeof (CHAR8 ))] = T_CHAR_NULL;
- //
- // Pre-process the file to replace comments with spaces
- //
- PreprocessFile (SourceFile);
- SourceFile->LineNum = 1;
- return STATUS_SUCCESS;
-}
-
-/**
- Preprocess a file to replace all carriage returns with NULLs so
- we can print lines (as part of error messages) from the file to the screen.
-
- @param SourceFile structure that we use to keep track of an input file.
-**/
-STATIC
-VOID
-PreprocessFile (
- SOURCE_FILE *SourceFile
- )
-{
- BOOLEAN InComment;
- BOOLEAN SlashSlashComment;
- int LineNum;
-
- RewindFile (SourceFile);
- InComment = FALSE;
- SlashSlashComment = FALSE;
- while (!EndOfFile (SourceFile)) {
- //
- // If a line-feed, then no longer in a comment if we're in a // comment
- //
- if (SourceFile->FileBufferPtr[0] == T_CHAR_LF) {
- SourceFile->FileBufferPtr++;
- SourceFile->LineNum++;
- if (InComment && SlashSlashComment) {
- InComment = FALSE;
- SlashSlashComment = FALSE;
- }
- } else if (SourceFile->FileBufferPtr[0] == T_CHAR_CR) {
- //
- // Replace all carriage returns with a NULL so we can print stuff
- //
- SourceFile->FileBufferPtr[0] = 0;
- SourceFile->FileBufferPtr++;
- //
- // Check for */ comment end
- //
- } else if (InComment &&
- !SlashSlashComment &&
- (SourceFile->FileBufferPtr[0] == T_CHAR_STAR) &&
- (SourceFile->FileBufferPtr[1] == T_CHAR_SLASH)
- ) {
- SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;
- SourceFile->FileBufferPtr++;
- SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;
- SourceFile->FileBufferPtr++;
- InComment = FALSE;
- } else if (InComment) {
- SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;
- SourceFile->FileBufferPtr++;
- //
- // Check for // comments
- //
- } else if ((SourceFile->FileBufferPtr[0] == T_CHAR_SLASH) && (SourceFile->FileBufferPtr[1] == T_CHAR_SLASH)) {
- InComment = TRUE;
- SlashSlashComment = TRUE;
- //
- // Check for /* comment start
- //
- } else if ((SourceFile->FileBufferPtr[0] == T_CHAR_SLASH) && (SourceFile->FileBufferPtr[1] == T_CHAR_STAR)) {
- SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;
- SourceFile->FileBufferPtr++;
- SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;
- SourceFile->FileBufferPtr++;
- SlashSlashComment = FALSE;
- InComment = TRUE;
- } else {
- SourceFile->FileBufferPtr++;
- }
- }
- //
- // Could check for end-of-file and still in a comment, but
- // should not be necessary. So just restore the file pointers.
- //
- RewindFile (SourceFile);
- //
- // Dump the reformatted file if verbose mode
- //
- if (mGlobals.VerboseFile) {
- LineNum = 1;
- printf ("%04d: ", LineNum);
- while (!EndOfFile (SourceFile)) {
- if (SourceFile->FileBufferPtr[0] == T_CHAR_LF) {
- printf ("'\n%04d: '", ++LineNum);
- } else {
- printf ("%c", SourceFile->FileBufferPtr[0]);
- }
-
- SourceFile->FileBufferPtr++;
- }
-
- printf ("'\n");
- printf ("FileSize = %u (0x%X)\n", (unsigned)SourceFile->FileSize, (unsigned)SourceFile->FileSize);
- RewindFile (SourceFile);
- }
-}
-
-/**
- Retrieve a quoted-string from the input file.
-
- @param Str pointer to a copy of the quoted string parsed
- @param Length size of buffer pointed to by Str
-
- @retval TRUE next token in input stream was a quoted string, and
- the string value was returned in Str
- @retval FALSE otherwise
-**/
-BOOLEAN
-SFPGetQuotedString (
- CHAR8 *Str,
- INTN Length
- )
-{
- SkipWhiteSpace (&mGlobals.SourceFile);
- if (EndOfFile (&mGlobals.SourceFile)) {
- return FALSE;
- }
-
- if (mGlobals.SourceFile.FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) {
- mGlobals.SourceFile.FileBufferPtr++;
- while (Length > 0) {
- if (EndOfFile (&mGlobals.SourceFile)) {
- return FALSE;
- }
- //
- // Check for closing quote
- //
- if (mGlobals.SourceFile.FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) {
- mGlobals.SourceFile.FileBufferPtr++;
- *Str = 0;
- return TRUE;
- }
-
- *Str = mGlobals.SourceFile.FileBufferPtr[0];
- Str++;
- Length--;
- mGlobals.SourceFile.FileBufferPtr++;
- }
- }
- //
- // First character was not a quote, or the input string length was
- // insufficient to contain the quoted string, so return failure code.
- //
- return FALSE;
-}
-
-/**
- Return TRUE of FALSE to indicate whether or not we've reached the end of the
- file we're parsing.
-
- @retval TRUE EOF reached
- @retval FALSE otherwise
-**/
-BOOLEAN
-SFPIsEOF (
- VOID
- )
-{
- SkipWhiteSpace (&mGlobals.SourceFile);
- return EndOfFile (&mGlobals.SourceFile);
-}
-
-#if 0
-STATIC
-CHAR8 *
-GetQuotedString (
- SOURCE_FILE *SourceFile,
- BOOLEAN Optional
- )
-{
- CHAR8 *String;
- CHAR8 *Start;
- CHAR8 *Ptr;
- UINTN Len;
- BOOLEAN PreviousBackslash;
-
- if (SourceFile->FileBufferPtr[0] != T_CHAR_DOUBLE_QUOTE) {
- if (Optional == FALSE) {
- Error (SourceFile->FileName, SourceFile->LineNum, 0, "expected quoted string", "%S", SourceFile->FileBufferPtr);
- }
-
- return NULL;
- }
-
- Len = 0;
- SourceFile->FileBufferPtr++;
- Start = Ptr = SourceFile->FileBufferPtr;
- PreviousBackslash = FALSE;
- while (!EndOfFile (SourceFile)) {
- if ((SourceFile->FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) && (PreviousBackslash == FALSE)) {
- break;
- } else if (SourceFile->FileBufferPtr[0] == T_CHAR_CR) {
- Warning (SourceFile->FileName, SourceFile->LineNum, 0, "carriage return found in quoted string", "%S", Start);
- PreviousBackslash = FALSE;
- } else if (SourceFile->FileBufferPtr[0] == T_CHAR_BACKSLASH) {
- PreviousBackslash = TRUE;
- } else {
- PreviousBackslash = FALSE;
- }
-
- SourceFile->FileBufferPtr++;
- Len++;
- }
-
- if (SourceFile->FileBufferPtr[0] != T_CHAR_DOUBLE_QUOTE) {
- Warning (SourceFile->FileName, SourceFile->LineNum, 0, "missing closing quote on string", "%S", Start);
- } else {
- SourceFile->FileBufferPtr++;
- }
- //
- // Now allocate memory for the string and save it off
- //
- String = (CHAR8 *) malloc ((Len + 1) * sizeof (CHAR8 ));
- if (String == NULL) {
- Error (NULL, 0, 4001, "Resource: memory cannot be allocated", NULL);
- return NULL;
- }
- //
- // Copy the string from the file buffer to the local copy.
- // We do no reformatting of it whatsoever at this point.
- //
- Ptr = String;
- while (Len > 0) {
- *Ptr = *Start;
- Start++;
- Ptr++;
- Len--;
- }
-
- *Ptr = 0;
- return String;
-}
-#endif
-STATIC
-BOOLEAN
-EndOfFile (
- SOURCE_FILE *SourceFile
- )
-{
- //
- // The file buffer pointer will typically get updated before the End-of-file flag in the
- // source file structure, so check it first.
- //
- if (SourceFile->FileBufferPtr >= SourceFile->FileBuffer + SourceFile->FileSize / sizeof (CHAR8 )) {
- SourceFile->EndOfFile = TRUE;
- return TRUE;
- }
-
- if (SourceFile->EndOfFile) {
- return TRUE;
- }
-
- return FALSE;
-}
-
-#if 0
-STATIC
-VOID
-ProcessTokenInclude (
- SOURCE_FILE *SourceFile
- )
-{
- CHAR8 IncludeFileName[MAX_PATH];
- CHAR8 *To;
- UINTN Len;
- BOOLEAN ReportedError;
- SOURCE_FILE IncludedSourceFile;
-
- ReportedError = FALSE;
- if (SkipWhiteSpace (SourceFile) == 0) {
- Warning (SourceFile->FileName, SourceFile->LineNum, 0, "expected whitespace following #include keyword", NULL);
- }
- //
- // Should be quoted file name
- //
- if (SourceFile->FileBufferPtr[0] != T_CHAR_DOUBLE_QUOTE) {
- Error (SourceFile->FileName, SourceFile->LineNum, 0, "expected quoted include file name", NULL);
- goto FailDone;
- }
-
- SourceFile->FileBufferPtr++;
- //
- // Copy the filename as ascii to our local string
- //
- To = IncludeFileName;
- Len = 0;
- while (!EndOfFile (SourceFile)) {
- if ((SourceFile->FileBufferPtr[0] == T_CHAR_CR) || (SourceFile->FileBufferPtr[0] == T_CHAR_LF)) {
- Error (SourceFile->FileName, SourceFile->LineNum, 0, "end-of-line found in quoted include file name", NULL);
- goto FailDone;
- }
-
- if (SourceFile->FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) {
- SourceFile->FileBufferPtr++;
- break;
- }
- //
- // If too long, then report the error once and process until the closing quote
- //
- Len++;
- if (!ReportedError && (Len >= sizeof (IncludeFileName))) {
- Error (SourceFile->FileName, SourceFile->LineNum, 0, "length of include file name exceeds limit", NULL);
- ReportedError = TRUE;
- }
-
- if (!ReportedError) {
- *To = (CHAR8 ) SourceFile->FileBufferPtr[0];
- To++;
- }
-
- SourceFile->FileBufferPtr++;
- }
-
- if (!ReportedError) {
- *To = 0;
- memset ((CHAR8 *) &IncludedSourceFile, 0, sizeof (SOURCE_FILE));
- strcpy (IncludedSourceFile.FileName, IncludeFileName);
- ProcessIncludeFile (&IncludedSourceFile, SourceFile);
- }
-
- return ;
-FailDone:
- //
- // Error recovery -- skip to next #
- //
- SourceFile->SkipToHash = TRUE;
-}
-#endif
-STATIC
-BOOLEAN
-IsWhiteSpace (
- SOURCE_FILE *SourceFile
- )
-{
- switch (*SourceFile->FileBufferPtr) {
- case T_CHAR_NULL:
- case T_CHAR_CR:
- case T_CHAR_SPACE:
- case T_CHAR_TAB:
- case T_CHAR_LF:
- return TRUE;
-
- default:
- return FALSE;
- }
-}
-
-UINTN
-SkipWhiteSpace (
- SOURCE_FILE *SourceFile
- )
-{
- UINTN Count;
-
- Count = 0;
- while (!EndOfFile (SourceFile)) {
- Count++;
- switch (*SourceFile->FileBufferPtr) {
- case T_CHAR_NULL:
- case T_CHAR_CR:
- case T_CHAR_SPACE:
- case T_CHAR_TAB:
- SourceFile->FileBufferPtr++;
- break;
-
- case T_CHAR_LF:
- SourceFile->FileBufferPtr++;
- SourceFile->LineNum++;
- break;
-
- default:
- return Count - 1;
- }
- }
- //
- // Some tokens require trailing whitespace. If we're at the end of the
- // file, then we count that as well.
- //
- if ((Count == 0) && (EndOfFile (SourceFile))) {
- Count++;
- }
-
- return Count;
-}
-
-/**
- Compare two strings for equality. The string pointed to by 'Buffer' may or may not be null-terminated,
- so only compare up to the length of Str.
-
- @param Buffer pointer to first (possibly not null-terminated) string
- @param Str pointer to null-terminated string to compare to Buffer
-
- @retval Number of bytes matched if exact match
- @retval 0 if Buffer does not start with Str
-**/
-STATIC
-UINTN
-t_strcmp (
- CHAR8 *Buffer,
- CHAR8 *Str
- )
-{
- UINTN Len;
-
- Len = 0;
- while (*Str && (*Str == *Buffer)) {
- Buffer++;
- Str++;
- Len++;
- }
-
- if (*Str) {
- return 0;
- }
-
- return Len;
-}
-
-STATIC
-UINTN
-t_strlen (
- CHAR8 *Str
- )
-{
- UINTN Len;
- Len = 0;
- while (*Str) {
- Len++;
- Str++;
- }
-
- return Len;
-}
-
-STATIC
-UINTN
-t_strncmp (
- CHAR8 *Str1,
- CHAR8 *Str2,
- INTN Len
- )
-{
- while (Len > 0) {
- if (*Str1 != *Str2) {
- return Len;
- }
-
- Len--;
- Str1++;
- Str2++;
- }
-
- return 0;
-}
-
-STATIC
-CHAR8 *
-t_strcpy (
- CHAR8 *Dest,
- CHAR8 *Src
- )
-{
- CHAR8 *SaveDest;
- SaveDest = Dest;
- while (*Src) {
- *Dest = *Src;
- Dest++;
- Src++;
- }
-
- *Dest = 0;
- return SaveDest;
-}
-
-STATIC
-VOID
-RewindFile (
- SOURCE_FILE *SourceFile
- )
-{
- SourceFile->LineNum = 1;
- SourceFile->FileBufferPtr = SourceFile->FileBuffer;
- SourceFile->EndOfFile = 0;
-}
-
-STATIC
-UINT32
-GetHexChars (
- CHAR8 *Buffer,
- UINT32 BufferLen
- )
-{
- UINT32 Len;
- Len = 0;
- while (!EndOfFile (&mGlobals.SourceFile) && (Len < BufferLen)) {
- if (isxdigit ((int)mGlobals.SourceFile.FileBufferPtr[0])) {
- Buffer[Len] = mGlobals.SourceFile.FileBufferPtr[0];
- Len++;
- mGlobals.SourceFile.FileBufferPtr++;
- } else {
- break;
- }
- }
- //
- // Null terminate if we can
- //
- if ((Len > 0) && (Len < BufferLen)) {
- Buffer[Len] = 0;
- }
-
- return Len;
-}
-
-/**
- Parse a GUID from the input stream. Stop when you discover white space.
-
- GUID styles
- Style[0] 12345678-1234-5678-AAAA-BBBBCCCCDDDD
-
- @param GuidStyle Style of the following GUID token
- @param Value pointer to EFI_GUID struct for output
-
- @retval TRUE GUID string parsed successfully
- @retval FALSE otherwise
-**/
-BOOLEAN
-SFPGetGuid (
- INTN GuidStyle,
- EFI_GUID *Value
- )
-{
- INT32 Value32;
- UINT32 Index;
- FILE_POSITION FPos;
- CHAR8 TempString[20];
- CHAR8 TempString2[3];
- CHAR8 *From;
- CHAR8 *To;
- UINT32 Len;
- BOOLEAN Status;
-
- Status = FALSE;
- //
- // Skip white space, then start parsing
- //
- SkipWhiteSpace (&mGlobals.SourceFile);
- GetFilePosition (&FPos);
- if (EndOfFile (&mGlobals.SourceFile)) {
- return FALSE;
- }
-
- if (GuidStyle == PARSE_GUID_STYLE_5_FIELDS) {
- //
- // Style[0] 12345678-1234-5678-AAAA-BBBBCCCCDDDD
- //
- Len = GetHexChars (TempString, sizeof (TempString));
- if ((Len == 0) || (Len > 8)) {
- goto Done;
- }
-
- sscanf (TempString, "%x", &Value32);
- Value->Data1 = Value32;
- //
- // Next two UINT16 fields
- //
- if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {
- goto Done;
- }
-
- mGlobals.SourceFile.FileBufferPtr++;
- Len = GetHexChars (TempString, sizeof (TempString));
- if ((Len == 0) || (Len > 4)) {
- goto Done;
- }
-
- sscanf (TempString, "%x", &Value32);
- Value->Data2 = (UINT16) Value32;
-
- if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {
- goto Done;
- }
-
- mGlobals.SourceFile.FileBufferPtr++;
- Len = GetHexChars (TempString, sizeof (TempString));
- if ((Len == 0) || (Len > 4)) {
- goto Done;
- }
-
- sscanf (TempString, "%x", &Value32);
- Value->Data3 = (UINT16) Value32;
- //
- // Parse the "AAAA" as two bytes
- //
- if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {
- goto Done;
- }
-
- mGlobals.SourceFile.FileBufferPtr++;
- Len = GetHexChars (TempString, sizeof (TempString));
- if ((Len == 0) || (Len > 4)) {
- goto Done;
- }
-
- sscanf (TempString, "%x", &Value32);
- Value->Data4[0] = (UINT8) (Value32 >> 8);
- Value->Data4[1] = (UINT8) Value32;
- if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {
- goto Done;
- }
-
- mGlobals.SourceFile.FileBufferPtr++;
- //
- // Read the last 6 bytes of the GUID
- //
- //
- Len = GetHexChars (TempString, sizeof (TempString));
- if ((Len == 0) || (Len > 12)) {
- goto Done;
- }
- //
- // Insert leading 0's to make life easier
- //
- if (Len != 12) {
- From = TempString + Len - 1;
- To = TempString + 11;
- TempString[12] = 0;
- while (From >= TempString) {
- *To = *From;
- To--;
- From--;
- }
-
- while (To >= TempString) {
- *To = '0';
- To--;
- }
- }
- //
- // Now parse each byte
- //
- TempString2[2] = 0;
- for (Index = 0; Index < 6; Index++) {
- //
- // Copy the two characters from the input string to something
- // we can parse.
- //
- TempString2[0] = TempString[Index * 2];
- TempString2[1] = TempString[Index * 2 + 1];
- sscanf (TempString2, "%x", &Value32);
- Value->Data4[Index + 2] = (UINT8) Value32;
- }
-
- Status = TRUE;
- } else {
- //
- // Unsupported GUID style
- //
- return FALSE;
- }
-
-Done:
- if (Status == FALSE) {
- SetFilePosition (&FPos);
- }
-
- return Status;
-}
-
-STATIC
-STATUS
-GetFilePosition (
- FILE_POSITION *Fpos
- )
-{
- Fpos->FileBufferPtr = mGlobals.SourceFile.FileBufferPtr;
- return STATUS_SUCCESS;
-}
-
-STATIC
-STATUS
-SetFilePosition (
- FILE_POSITION *Fpos
- )
-{
- //
- // Should check range of pointer
- //
- mGlobals.SourceFile.FileBufferPtr = Fpos->FileBufferPtr;
- return STATUS_SUCCESS;
-}
+/** @file
+Generic but simple file parsing routines.
+
+Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+--*/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include "CommonLib.h"
+#include "EfiUtilityMsgs.h"
+#include "SimpleFileParsing.h"
+
+#ifndef MAX_PATH
+#define MAX_PATH 255
+#endif
+//
+// just in case we get in an endless loop.
+//
+#define MAX_NEST_DEPTH 20
+//
+// number of wchars
+//
+#define MAX_STRING_IDENTIFIER_NAME 100
+
+#define T_CHAR_SPACE ' '
+#define T_CHAR_NULL 0
+#define T_CHAR_CR '\r'
+#define T_CHAR_TAB '\t'
+#define T_CHAR_LF '\n'
+#define T_CHAR_SLASH '/'
+#define T_CHAR_BACKSLASH '\\'
+#define T_CHAR_DOUBLE_QUOTE '"'
+#define T_CHAR_LC_X 'x'
+#define T_CHAR_0 '0'
+#define T_CHAR_STAR '*'
+
+//
+// We keep a linked list of these for the source files we process
+//
+typedef struct _SOURCE_FILE {
+ FILE *Fptr;
+ CHAR8 *FileBuffer;
+ CHAR8 *FileBufferPtr;
+ UINTN FileSize;
+ CHAR8 FileName[MAX_PATH];
+ UINTN LineNum;
+ BOOLEAN EndOfFile;
+ BOOLEAN SkipToHash;
+ struct _SOURCE_FILE *Previous;
+ struct _SOURCE_FILE *Next;
+ CHAR8 ControlCharacter;
+} SOURCE_FILE;
+
+typedef struct {
+ CHAR8 *FileBufferPtr;
+} FILE_POSITION;
+
+//
+// Keep all our module globals in this structure
+//
+STATIC struct {
+ SOURCE_FILE SourceFile;
+ BOOLEAN VerboseFile;
+ BOOLEAN VerboseToken;
+} mGlobals;
+
+STATIC
+UINTN
+t_strcmp (
+ CHAR8 *Buffer,
+ CHAR8 *Str
+ );
+
+STATIC
+UINTN
+t_strncmp (
+ CHAR8 *Str1,
+ CHAR8 *Str2,
+ INTN Len
+ );
+
+STATIC
+UINTN
+t_strlen (
+ CHAR8 *Str
+ );
+
+STATIC
+VOID
+RewindFile (
+ SOURCE_FILE *SourceFile
+ );
+
+STATIC
+BOOLEAN
+IsWhiteSpace (
+ SOURCE_FILE *SourceFile
+ );
+
+STATIC
+UINTN
+SkipWhiteSpace (
+ SOURCE_FILE *SourceFile
+ );
+
+STATIC
+BOOLEAN
+EndOfFile (
+ SOURCE_FILE *SourceFile
+ );
+
+STATIC
+VOID
+PreprocessFile (
+ SOURCE_FILE *SourceFile
+ );
+
+STATIC
+CHAR8 *
+t_strcpy (
+ CHAR8 *Dest,
+ CHAR8 *Src
+ );
+
+STATIC
+STATUS
+ProcessIncludeFile (
+ SOURCE_FILE *SourceFile,
+ SOURCE_FILE *ParentSourceFile
+ );
+
+STATIC
+STATUS
+ProcessFile (
+ SOURCE_FILE *SourceFile
+ );
+
+STATIC
+STATUS
+GetFilePosition (
+ FILE_POSITION *Fpos
+ );
+
+STATIC
+STATUS
+SetFilePosition (
+ FILE_POSITION *Fpos
+ );
+
+/**
+ @retval STATUS_SUCCESS always
+**/
+STATUS
+SFPInit (
+ VOID
+ )
+{
+ memset ((VOID *) &mGlobals, 0, sizeof (mGlobals));
+ return STATUS_SUCCESS;
+}
+
+/**
+ Return the line number of the file we're parsing. Used
+ for error reporting purposes.
+
+ @return The line number, or 0 if no file is being processed
+**/
+UINTN
+SFPGetLineNumber (
+ VOID
+ )
+{
+ return mGlobals.SourceFile.LineNum;
+}
+
+/**
+ Return the name of the file we're parsing. Used
+ for error reporting purposes.
+
+ @return A pointer to the file name. Null if no file is being
+ processed.
+**/
+CHAR8 *
+SFPGetFileName (
+ VOID
+ )
+{
+ if (mGlobals.SourceFile.FileName[0]) {
+ return mGlobals.SourceFile.FileName;
+ }
+
+ return NULL;
+}
+
+/**
+ Open a file for parsing.
+
+ @param FileName name of the file to parse
+**/
+STATUS
+SFPOpenFile (
+ CHAR8 *FileName
+ )
+{
+ STATUS Status;
+ t_strcpy (mGlobals.SourceFile.FileName, FileName);
+ Status = ProcessIncludeFile (&mGlobals.SourceFile, NULL);
+ return Status;
+}
+
+/**
+ Check to see if the specified token is found at
+ the current position in the input file.
+
+ @note:
+ We do a simple string comparison on this function. It is
+ the responsibility of the caller to ensure that the token
+ is not a subset of some other token.
+
+ The file pointer is advanced past the token in the input file.
+
+ @param Str the token to look for
+
+ @retval TRUE the token is next
+ @retval FALSE the token is not next
+**/
+BOOLEAN
+SFPIsToken (
+ CHAR8 *Str
+ )
+{
+ UINTN Len;
+ SkipWhiteSpace (&mGlobals.SourceFile);
+ if (EndOfFile (&mGlobals.SourceFile)) {
+ return FALSE;
+ }
+
+ if ((Len = t_strcmp (mGlobals.SourceFile.FileBufferPtr, Str)) > 0) {
+ mGlobals.SourceFile.FileBufferPtr += Len;
+ if (mGlobals.VerboseToken) {
+ printf ("Token: '%s'\n", Str);
+ }
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/**
+ Check to see if the specified keyword is found at
+ the current position in the input file.
+
+ @note:
+ A keyword is defined as a "special" string that has a non-alphanumeric
+ character following it.
+
+ @param Str keyword to look for
+
+ @retval TRUE the keyword is next
+ @retval FALSE the keyword is not next
+**/
+BOOLEAN
+SFPIsKeyword (
+ CHAR8 *Str
+ )
+{
+ UINTN Len;
+ SkipWhiteSpace (&mGlobals.SourceFile);
+ if (EndOfFile (&mGlobals.SourceFile)) {
+ return FALSE;
+ }
+
+ if ((Len = t_strcmp (mGlobals.SourceFile.FileBufferPtr, Str)) > 0) {
+ if (isalnum ((int)mGlobals.SourceFile.FileBufferPtr[Len])) {
+ return FALSE;
+ }
+
+ mGlobals.SourceFile.FileBufferPtr += Len;
+ if (mGlobals.VerboseToken) {
+ printf ("Token: '%s'\n", Str);
+ }
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/**
+ Get the next token from the input stream.
+
+ @note:
+ Preceding white space is ignored.
+ The parser's buffer pointer is advanced past the end of the
+ token.
+
+ @param Str pointer to a copy of the next token
+ @param Len size of buffer pointed to by Str
+
+ @retval TRUE next token successfully returned
+ @retval FALSE otherwise
+**/
+BOOLEAN
+SFPGetNextToken (
+ CHAR8 *Str,
+ UINTN Len
+ )
+{
+ UINTN Index;
+ CHAR8 TempChar;
+
+ SkipWhiteSpace (&mGlobals.SourceFile);
+ if (EndOfFile (&mGlobals.SourceFile)) {
+ return FALSE;
+ }
+ //
+ // Have to have enough string for at least one char and a null-terminator
+ //
+ if (Len < 2) {
+ return FALSE;
+ }
+ //
+ // Look at the first character. If it's an identifier, then treat it
+ // as such
+ //
+ TempChar = mGlobals.SourceFile.FileBufferPtr[0];
+ if (((TempChar >= 'a') && (TempChar <= 'z')) || ((TempChar >= 'A') && (TempChar <= 'Z')) || (TempChar == '_')) {
+ Str[0] = TempChar;
+ mGlobals.SourceFile.FileBufferPtr++;
+ Index = 1;
+ while (!EndOfFile (&mGlobals.SourceFile) && (Index < Len)) {
+ TempChar = mGlobals.SourceFile.FileBufferPtr[0];
+ if (((TempChar >= 'a') && (TempChar <= 'z')) ||
+ ((TempChar >= 'A') && (TempChar <= 'Z')) ||
+ ((TempChar >= '0') && (TempChar <= '9')) ||
+ (TempChar == '_')
+ ) {
+ Str[Index] = mGlobals.SourceFile.FileBufferPtr[0];
+ mGlobals.SourceFile.FileBufferPtr++;
+ Index++;
+ } else {
+ //
+ // Invalid character for symbol name, so break out
+ //
+ break;
+ }
+ }
+ //
+ // Null terminate and return success
+ //
+ Str[Index] = 0;
+ return TRUE;
+ } else if ((TempChar == ')') || (TempChar == '(') || (TempChar == '*')) {
+ Str[0] = mGlobals.SourceFile.FileBufferPtr[0];
+ mGlobals.SourceFile.FileBufferPtr++;
+ Str[1] = 0;
+ return TRUE;
+ } else {
+ //
+ // Everything else is white-space (or EOF) separated
+ //
+ Index = 0;
+ while (!EndOfFile (&mGlobals.SourceFile) && (Index < Len)) {
+ if (IsWhiteSpace (&mGlobals.SourceFile)) {
+ if (Index > 0) {
+ Str[Index] = 0;
+ return TRUE;
+ }
+
+ return FALSE;
+ } else {
+ Str[Index] = mGlobals.SourceFile.FileBufferPtr[0];
+ mGlobals.SourceFile.FileBufferPtr++;
+ Index++;
+ }
+ }
+ //
+ // See if we just ran out of file contents, but did find a token
+ //
+ if ((Index > 0) && EndOfFile (&mGlobals.SourceFile)) {
+ Str[Index] = 0;
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+/**
+ Parse a GUID from the input stream. Stop when you discover white space.
+
+ @param Str pointer to a copy of the next token
+ @param Len size of buffer pointed to by Str
+
+ @retval TRUE GUID string returned successfully
+ @retval FALSE otherwise
+**/
+BOOLEAN
+SFPGetGuidToken (
+ CHAR8 *Str,
+ UINT32 Len
+ )
+{
+ UINT32 Index;
+ SkipWhiteSpace (&mGlobals.SourceFile);
+ if (EndOfFile (&mGlobals.SourceFile)) {
+ return FALSE;
+ }
+
+ Index = 0;
+ while (!EndOfFile (&mGlobals.SourceFile) && (Index < Len)) {
+ if (IsWhiteSpace (&mGlobals.SourceFile)) {
+ if (Index > 0) {
+ Str[Index] = 0;
+ return TRUE;
+ }
+
+ return FALSE;
+ } else {
+ Str[Index] = mGlobals.SourceFile.FileBufferPtr[0];
+ mGlobals.SourceFile.FileBufferPtr++;
+ Index++;
+ }
+ }
+
+ return FALSE;
+}
+
+BOOLEAN
+SFPSkipToToken (
+ CHAR8 *Str
+ )
+{
+ UINTN Len;
+ CHAR8 *SavePos;
+ Len = t_strlen (Str);
+ SavePos = mGlobals.SourceFile.FileBufferPtr;
+ SkipWhiteSpace (&mGlobals.SourceFile);
+ while (!EndOfFile (&mGlobals.SourceFile)) {
+ if (t_strncmp (Str, mGlobals.SourceFile.FileBufferPtr, Len) == 0) {
+ mGlobals.SourceFile.FileBufferPtr += Len;
+ return TRUE;
+ }
+
+ mGlobals.SourceFile.FileBufferPtr++;
+ SkipWhiteSpace (&mGlobals.SourceFile);
+ }
+
+ mGlobals.SourceFile.FileBufferPtr = SavePos;
+ return FALSE;
+}
+
+/**
+ Check the token at the current file position for a numeric value.
+ May be either decimal or hex.
+
+ @param Value pointer where to store the value
+
+ @retval FALSE current token is not a number
+ @retval TRUE current token is a number
+**/
+BOOLEAN
+SFPGetNumber (
+ UINTN *Value
+ )
+{
+ int Val;
+
+ SkipWhiteSpace (&mGlobals.SourceFile);
+ if (EndOfFile (&mGlobals.SourceFile)) {
+ return FALSE;
+ }
+
+ if (isdigit ((int)mGlobals.SourceFile.FileBufferPtr[0])) {
+ //
+ // Check for hex value
+ //
+ if ((mGlobals.SourceFile.FileBufferPtr[0] == T_CHAR_0) && (mGlobals.SourceFile.FileBufferPtr[1] == T_CHAR_LC_X)) {
+ if (!isxdigit ((int)mGlobals.SourceFile.FileBufferPtr[2])) {
+ return FALSE;
+ }
+
+ mGlobals.SourceFile.FileBufferPtr += 2;
+ sscanf (mGlobals.SourceFile.FileBufferPtr, "%x", &Val);
+ *Value = (UINT32) Val;
+ while (isxdigit ((int)mGlobals.SourceFile.FileBufferPtr[0])) {
+ mGlobals.SourceFile.FileBufferPtr++;
+ }
+
+ return TRUE;
+ } else {
+ *Value = atoi (mGlobals.SourceFile.FileBufferPtr);
+ while (isdigit ((int)mGlobals.SourceFile.FileBufferPtr[0])) {
+ mGlobals.SourceFile.FileBufferPtr++;
+ }
+
+ return TRUE;
+ }
+ } else {
+ return FALSE;
+ }
+}
+
+/**
+ Close the file being parsed.
+
+ @retval STATUS_SUCCESS the file was closed
+ @retval STATUS_ERROR no file is currently open
+**/
+STATUS
+SFPCloseFile (
+ VOID
+ )
+{
+ if (mGlobals.SourceFile.FileBuffer != NULL) {
+ free (mGlobals.SourceFile.FileBuffer);
+ memset (&mGlobals.SourceFile, 0, sizeof (mGlobals.SourceFile));
+ return STATUS_SUCCESS;
+ }
+
+ return STATUS_ERROR;
+}
+
+/**
+ Given a source file, open the file and parse it
+
+ @param SourceFile name of file to parse
+ @param ParentSourceFile for error reporting purposes, the file that #included SourceFile.
+
+ @return Standard status.
+**/
+STATIC
+STATUS
+ProcessIncludeFile (
+ SOURCE_FILE *SourceFile,
+ SOURCE_FILE *ParentSourceFile
+ )
+{
+ STATIC UINTN NestDepth = 0;
+ CHAR8 FoundFileName[MAX_PATH];
+ STATUS Status;
+
+ Status = STATUS_SUCCESS;
+ NestDepth++;
+ //
+ // Print the file being processed. Indent so you can tell the include nesting
+ // depth.
+ //
+ if (mGlobals.VerboseFile) {
+ fprintf (stdout, "%*cProcessing file '%s'\n", (int)NestDepth * 2, ' ', SourceFile->FileName);
+ fprintf (stdout, "Parent source file = '%s'\n", ParentSourceFile->FileName);
+ }
+
+ //
+ // Make sure we didn't exceed our maximum nesting depth
+ //
+ if (NestDepth > MAX_NEST_DEPTH) {
+ Error (NULL, 0, 3001, "Not Supported", "%s exceeds max nesting depth (%u)", SourceFile->FileName, (unsigned) NestDepth);
+ Status = STATUS_ERROR;
+ goto Finish;
+ }
+ //
+ // Try to open the file locally, and if that fails try along our include paths.
+ //
+ strcpy (FoundFileName, SourceFile->FileName);
+ if ((SourceFile->Fptr = fopen (LongFilePath (FoundFileName), "rb")) == NULL) {
+ return STATUS_ERROR;
+ }
+ //
+ // Process the file found
+ //
+ ProcessFile (SourceFile);
+Finish:
+ //
+ // Close open files and return status
+ //
+ if (SourceFile->Fptr != NULL) {
+ fclose (SourceFile->Fptr);
+ SourceFile->Fptr = NULL;
+ }
+
+ return Status;
+}
+
+/**
+ Given a source file that's been opened, read the contents into an internal
+ buffer and pre-process it to remove comments.
+
+ @param SourceFile structure containing info on the file to process
+
+ @return Standard status.
+**/
+STATIC
+STATUS
+ProcessFile (
+ SOURCE_FILE *SourceFile
+ )
+{
+ //
+ // Get the file size, and then read the entire thing into memory.
+ // Allocate extra space for a terminator character.
+ //
+ fseek (SourceFile->Fptr, 0, SEEK_END);
+ SourceFile->FileSize = ftell (SourceFile->Fptr);
+ if (mGlobals.VerboseFile) {
+ printf ("FileSize = %u (0x%X)\n", (unsigned) SourceFile->FileSize, (unsigned) SourceFile->FileSize);
+ }
+
+ fseek (SourceFile->Fptr, 0, SEEK_SET);
+ SourceFile->FileBuffer = (CHAR8 *) malloc (SourceFile->FileSize + sizeof (CHAR8 ));
+ if (SourceFile->FileBuffer == NULL) {
+ Error (NULL, 0, 4001, "Resource: memory cannot be allocated", NULL);
+ return STATUS_ERROR;
+ }
+
+ fread ((VOID *) SourceFile->FileBuffer, SourceFile->FileSize, 1, SourceFile->Fptr);
+ SourceFile->FileBuffer[(SourceFile->FileSize / sizeof (CHAR8 ))] = T_CHAR_NULL;
+ //
+ // Pre-process the file to replace comments with spaces
+ //
+ PreprocessFile (SourceFile);
+ SourceFile->LineNum = 1;
+ return STATUS_SUCCESS;
+}
+
+/**
+ Preprocess a file to replace all carriage returns with NULLs so
+ we can print lines (as part of error messages) from the file to the screen.
+
+ @param SourceFile structure that we use to keep track of an input file.
+**/
+STATIC
+VOID
+PreprocessFile (
+ SOURCE_FILE *SourceFile
+ )
+{
+ BOOLEAN InComment;
+ BOOLEAN SlashSlashComment;
+ int LineNum;
+
+ RewindFile (SourceFile);
+ InComment = FALSE;
+ SlashSlashComment = FALSE;
+ while (!EndOfFile (SourceFile)) {
+ //
+ // If a line-feed, then no longer in a comment if we're in a // comment
+ //
+ if (SourceFile->FileBufferPtr[0] == T_CHAR_LF) {
+ SourceFile->FileBufferPtr++;
+ SourceFile->LineNum++;
+ if (InComment && SlashSlashComment) {
+ InComment = FALSE;
+ SlashSlashComment = FALSE;
+ }
+ } else if (SourceFile->FileBufferPtr[0] == T_CHAR_CR) {
+ //
+ // Replace all carriage returns with a NULL so we can print stuff
+ //
+ SourceFile->FileBufferPtr[0] = 0;
+ SourceFile->FileBufferPtr++;
+ //
+ // Check for */ comment end
+ //
+ } else if (InComment &&
+ !SlashSlashComment &&
+ (SourceFile->FileBufferPtr[0] == T_CHAR_STAR) &&
+ (SourceFile->FileBufferPtr[1] == T_CHAR_SLASH)
+ ) {
+ SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;
+ SourceFile->FileBufferPtr++;
+ SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;
+ SourceFile->FileBufferPtr++;
+ InComment = FALSE;
+ } else if (InComment) {
+ SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;
+ SourceFile->FileBufferPtr++;
+ //
+ // Check for // comments
+ //
+ } else if ((SourceFile->FileBufferPtr[0] == T_CHAR_SLASH) && (SourceFile->FileBufferPtr[1] == T_CHAR_SLASH)) {
+ InComment = TRUE;
+ SlashSlashComment = TRUE;
+ //
+ // Check for /* comment start
+ //
+ } else if ((SourceFile->FileBufferPtr[0] == T_CHAR_SLASH) && (SourceFile->FileBufferPtr[1] == T_CHAR_STAR)) {
+ SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;
+ SourceFile->FileBufferPtr++;
+ SourceFile->FileBufferPtr[0] = T_CHAR_SPACE;
+ SourceFile->FileBufferPtr++;
+ SlashSlashComment = FALSE;
+ InComment = TRUE;
+ } else {
+ SourceFile->FileBufferPtr++;
+ }
+ }
+ //
+ // Could check for end-of-file and still in a comment, but
+ // should not be necessary. So just restore the file pointers.
+ //
+ RewindFile (SourceFile);
+ //
+ // Dump the reformatted file if verbose mode
+ //
+ if (mGlobals.VerboseFile) {
+ LineNum = 1;
+ printf ("%04d: ", LineNum);
+ while (!EndOfFile (SourceFile)) {
+ if (SourceFile->FileBufferPtr[0] == T_CHAR_LF) {
+ printf ("'\n%04d: '", ++LineNum);
+ } else {
+ printf ("%c", SourceFile->FileBufferPtr[0]);
+ }
+
+ SourceFile->FileBufferPtr++;
+ }
+
+ printf ("'\n");
+ printf ("FileSize = %u (0x%X)\n", (unsigned)SourceFile->FileSize, (unsigned)SourceFile->FileSize);
+ RewindFile (SourceFile);
+ }
+}
+
+/**
+ Retrieve a quoted-string from the input file.
+
+ @param Str pointer to a copy of the quoted string parsed
+ @param Length size of buffer pointed to by Str
+
+ @retval TRUE next token in input stream was a quoted string, and
+ the string value was returned in Str
+ @retval FALSE otherwise
+**/
+BOOLEAN
+SFPGetQuotedString (
+ CHAR8 *Str,
+ INTN Length
+ )
+{
+ SkipWhiteSpace (&mGlobals.SourceFile);
+ if (EndOfFile (&mGlobals.SourceFile)) {
+ return FALSE;
+ }
+
+ if (mGlobals.SourceFile.FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) {
+ mGlobals.SourceFile.FileBufferPtr++;
+ while (Length > 0) {
+ if (EndOfFile (&mGlobals.SourceFile)) {
+ return FALSE;
+ }
+ //
+ // Check for closing quote
+ //
+ if (mGlobals.SourceFile.FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) {
+ mGlobals.SourceFile.FileBufferPtr++;
+ *Str = 0;
+ return TRUE;
+ }
+
+ *Str = mGlobals.SourceFile.FileBufferPtr[0];
+ Str++;
+ Length--;
+ mGlobals.SourceFile.FileBufferPtr++;
+ }
+ }
+ //
+ // First character was not a quote, or the input string length was
+ // insufficient to contain the quoted string, so return failure code.
+ //
+ return FALSE;
+}
+
+/**
+ Return TRUE of FALSE to indicate whether or not we've reached the end of the
+ file we're parsing.
+
+ @retval TRUE EOF reached
+ @retval FALSE otherwise
+**/
+BOOLEAN
+SFPIsEOF (
+ VOID
+ )
+{
+ SkipWhiteSpace (&mGlobals.SourceFile);
+ return EndOfFile (&mGlobals.SourceFile);
+}
+
+#if 0
+STATIC
+CHAR8 *
+GetQuotedString (
+ SOURCE_FILE *SourceFile,
+ BOOLEAN Optional
+ )
+{
+ CHAR8 *String;
+ CHAR8 *Start;
+ CHAR8 *Ptr;
+ UINTN Len;
+ BOOLEAN PreviousBackslash;
+
+ if (SourceFile->FileBufferPtr[0] != T_CHAR_DOUBLE_QUOTE) {
+ if (Optional == FALSE) {
+ Error (SourceFile->FileName, SourceFile->LineNum, 0, "expected quoted string", "%S", SourceFile->FileBufferPtr);
+ }
+
+ return NULL;
+ }
+
+ Len = 0;
+ SourceFile->FileBufferPtr++;
+ Start = Ptr = SourceFile->FileBufferPtr;
+ PreviousBackslash = FALSE;
+ while (!EndOfFile (SourceFile)) {
+ if ((SourceFile->FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) && (PreviousBackslash == FALSE)) {
+ break;
+ } else if (SourceFile->FileBufferPtr[0] == T_CHAR_CR) {
+ Warning (SourceFile->FileName, SourceFile->LineNum, 0, "carriage return found in quoted string", "%S", Start);
+ PreviousBackslash = FALSE;
+ } else if (SourceFile->FileBufferPtr[0] == T_CHAR_BACKSLASH) {
+ PreviousBackslash = TRUE;
+ } else {
+ PreviousBackslash = FALSE;
+ }
+
+ SourceFile->FileBufferPtr++;
+ Len++;
+ }
+
+ if (SourceFile->FileBufferPtr[0] != T_CHAR_DOUBLE_QUOTE) {
+ Warning (SourceFile->FileName, SourceFile->LineNum, 0, "missing closing quote on string", "%S", Start);
+ } else {
+ SourceFile->FileBufferPtr++;
+ }
+ //
+ // Now allocate memory for the string and save it off
+ //
+ String = (CHAR8 *) malloc ((Len + 1) * sizeof (CHAR8 ));
+ if (String == NULL) {
+ Error (NULL, 0, 4001, "Resource: memory cannot be allocated", NULL);
+ return NULL;
+ }
+ //
+ // Copy the string from the file buffer to the local copy.
+ // We do no reformatting of it whatsoever at this point.
+ //
+ Ptr = String;
+ while (Len > 0) {
+ *Ptr = *Start;
+ Start++;
+ Ptr++;
+ Len--;
+ }
+
+ *Ptr = 0;
+ return String;
+}
+#endif
+STATIC
+BOOLEAN
+EndOfFile (
+ SOURCE_FILE *SourceFile
+ )
+{
+ //
+ // The file buffer pointer will typically get updated before the End-of-file flag in the
+ // source file structure, so check it first.
+ //
+ if (SourceFile->FileBufferPtr >= SourceFile->FileBuffer + SourceFile->FileSize / sizeof (CHAR8 )) {
+ SourceFile->EndOfFile = TRUE;
+ return TRUE;
+ }
+
+ if (SourceFile->EndOfFile) {
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+#if 0
+STATIC
+VOID
+ProcessTokenInclude (
+ SOURCE_FILE *SourceFile
+ )
+{
+ CHAR8 IncludeFileName[MAX_PATH];
+ CHAR8 *To;
+ UINTN Len;
+ BOOLEAN ReportedError;
+ SOURCE_FILE IncludedSourceFile;
+
+ ReportedError = FALSE;
+ if (SkipWhiteSpace (SourceFile) == 0) {
+ Warning (SourceFile->FileName, SourceFile->LineNum, 0, "expected whitespace following #include keyword", NULL);
+ }
+ //
+ // Should be quoted file name
+ //
+ if (SourceFile->FileBufferPtr[0] != T_CHAR_DOUBLE_QUOTE) {
+ Error (SourceFile->FileName, SourceFile->LineNum, 0, "expected quoted include file name", NULL);
+ goto FailDone;
+ }
+
+ SourceFile->FileBufferPtr++;
+ //
+ // Copy the filename as ascii to our local string
+ //
+ To = IncludeFileName;
+ Len = 0;
+ while (!EndOfFile (SourceFile)) {
+ if ((SourceFile->FileBufferPtr[0] == T_CHAR_CR) || (SourceFile->FileBufferPtr[0] == T_CHAR_LF)) {
+ Error (SourceFile->FileName, SourceFile->LineNum, 0, "end-of-line found in quoted include file name", NULL);
+ goto FailDone;
+ }
+
+ if (SourceFile->FileBufferPtr[0] == T_CHAR_DOUBLE_QUOTE) {
+ SourceFile->FileBufferPtr++;
+ break;
+ }
+ //
+ // If too long, then report the error once and process until the closing quote
+ //
+ Len++;
+ if (!ReportedError && (Len >= sizeof (IncludeFileName))) {
+ Error (SourceFile->FileName, SourceFile->LineNum, 0, "length of include file name exceeds limit", NULL);
+ ReportedError = TRUE;
+ }
+
+ if (!ReportedError) {
+ *To = (CHAR8 ) SourceFile->FileBufferPtr[0];
+ To++;
+ }
+
+ SourceFile->FileBufferPtr++;
+ }
+
+ if (!ReportedError) {
+ *To = 0;
+ memset ((CHAR8 *) &IncludedSourceFile, 0, sizeof (SOURCE_FILE));
+ strcpy (IncludedSourceFile.FileName, IncludeFileName);
+ ProcessIncludeFile (&IncludedSourceFile, SourceFile);
+ }
+
+ return ;
+FailDone:
+ //
+ // Error recovery -- skip to next #
+ //
+ SourceFile->SkipToHash = TRUE;
+}
+#endif
+STATIC
+BOOLEAN
+IsWhiteSpace (
+ SOURCE_FILE *SourceFile
+ )
+{
+ switch (*SourceFile->FileBufferPtr) {
+ case T_CHAR_NULL:
+ case T_CHAR_CR:
+ case T_CHAR_SPACE:
+ case T_CHAR_TAB:
+ case T_CHAR_LF:
+ return TRUE;
+
+ default:
+ return FALSE;
+ }
+}
+
+UINTN
+SkipWhiteSpace (
+ SOURCE_FILE *SourceFile
+ )
+{
+ UINTN Count;
+
+ Count = 0;
+ while (!EndOfFile (SourceFile)) {
+ Count++;
+ switch (*SourceFile->FileBufferPtr) {
+ case T_CHAR_NULL:
+ case T_CHAR_CR:
+ case T_CHAR_SPACE:
+ case T_CHAR_TAB:
+ SourceFile->FileBufferPtr++;
+ break;
+
+ case T_CHAR_LF:
+ SourceFile->FileBufferPtr++;
+ SourceFile->LineNum++;
+ break;
+
+ default:
+ return Count - 1;
+ }
+ }
+ //
+ // Some tokens require trailing whitespace. If we're at the end of the
+ // file, then we count that as well.
+ //
+ if ((Count == 0) && (EndOfFile (SourceFile))) {
+ Count++;
+ }
+
+ return Count;
+}
+
+/**
+ Compare two strings for equality. The string pointed to by 'Buffer' may or may not be null-terminated,
+ so only compare up to the length of Str.
+
+ @param Buffer pointer to first (possibly not null-terminated) string
+ @param Str pointer to null-terminated string to compare to Buffer
+
+ @retval Number of bytes matched if exact match
+ @retval 0 if Buffer does not start with Str
+**/
+STATIC
+UINTN
+t_strcmp (
+ CHAR8 *Buffer,
+ CHAR8 *Str
+ )
+{
+ UINTN Len;
+
+ Len = 0;
+ while (*Str && (*Str == *Buffer)) {
+ Buffer++;
+ Str++;
+ Len++;
+ }
+
+ if (*Str) {
+ return 0;
+ }
+
+ return Len;
+}
+
+STATIC
+UINTN
+t_strlen (
+ CHAR8 *Str
+ )
+{
+ UINTN Len;
+ Len = 0;
+ while (*Str) {
+ Len++;
+ Str++;
+ }
+
+ return Len;
+}
+
+STATIC
+UINTN
+t_strncmp (
+ CHAR8 *Str1,
+ CHAR8 *Str2,
+ INTN Len
+ )
+{
+ while (Len > 0) {
+ if (*Str1 != *Str2) {
+ return Len;
+ }
+
+ Len--;
+ Str1++;
+ Str2++;
+ }
+
+ return 0;
+}
+
+STATIC
+CHAR8 *
+t_strcpy (
+ CHAR8 *Dest,
+ CHAR8 *Src
+ )
+{
+ CHAR8 *SaveDest;
+ SaveDest = Dest;
+ while (*Src) {
+ *Dest = *Src;
+ Dest++;
+ Src++;
+ }
+
+ *Dest = 0;
+ return SaveDest;
+}
+
+STATIC
+VOID
+RewindFile (
+ SOURCE_FILE *SourceFile
+ )
+{
+ SourceFile->LineNum = 1;
+ SourceFile->FileBufferPtr = SourceFile->FileBuffer;
+ SourceFile->EndOfFile = 0;
+}
+
+STATIC
+UINT32
+GetHexChars (
+ CHAR8 *Buffer,
+ UINT32 BufferLen
+ )
+{
+ UINT32 Len;
+ Len = 0;
+ while (!EndOfFile (&mGlobals.SourceFile) && (Len < BufferLen)) {
+ if (isxdigit ((int)mGlobals.SourceFile.FileBufferPtr[0])) {
+ Buffer[Len] = mGlobals.SourceFile.FileBufferPtr[0];
+ Len++;
+ mGlobals.SourceFile.FileBufferPtr++;
+ } else {
+ break;
+ }
+ }
+ //
+ // Null terminate if we can
+ //
+ if ((Len > 0) && (Len < BufferLen)) {
+ Buffer[Len] = 0;
+ }
+
+ return Len;
+}
+
+/**
+ Parse a GUID from the input stream. Stop when you discover white space.
+
+ GUID styles
+ Style[0] 12345678-1234-5678-AAAA-BBBBCCCCDDDD
+
+ @param GuidStyle Style of the following GUID token
+ @param Value pointer to EFI_GUID struct for output
+
+ @retval TRUE GUID string parsed successfully
+ @retval FALSE otherwise
+**/
+BOOLEAN
+SFPGetGuid (
+ INTN GuidStyle,
+ EFI_GUID *Value
+ )
+{
+ INT32 Value32;
+ UINT32 Index;
+ FILE_POSITION FPos;
+ CHAR8 TempString[20];
+ CHAR8 TempString2[3];
+ CHAR8 *From;
+ CHAR8 *To;
+ UINT32 Len;
+ BOOLEAN Status;
+
+ Status = FALSE;
+ //
+ // Skip white space, then start parsing
+ //
+ SkipWhiteSpace (&mGlobals.SourceFile);
+ GetFilePosition (&FPos);
+ if (EndOfFile (&mGlobals.SourceFile)) {
+ return FALSE;
+ }
+
+ if (GuidStyle == PARSE_GUID_STYLE_5_FIELDS) {
+ //
+ // Style[0] 12345678-1234-5678-AAAA-BBBBCCCCDDDD
+ //
+ Len = GetHexChars (TempString, sizeof (TempString));
+ if ((Len == 0) || (Len > 8)) {
+ goto Done;
+ }
+
+ sscanf (TempString, "%x", &Value32);
+ Value->Data1 = Value32;
+ //
+ // Next two UINT16 fields
+ //
+ if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {
+ goto Done;
+ }
+
+ mGlobals.SourceFile.FileBufferPtr++;
+ Len = GetHexChars (TempString, sizeof (TempString));
+ if ((Len == 0) || (Len > 4)) {
+ goto Done;
+ }
+
+ sscanf (TempString, "%x", &Value32);
+ Value->Data2 = (UINT16) Value32;
+
+ if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {
+ goto Done;
+ }
+
+ mGlobals.SourceFile.FileBufferPtr++;
+ Len = GetHexChars (TempString, sizeof (TempString));
+ if ((Len == 0) || (Len > 4)) {
+ goto Done;
+ }
+
+ sscanf (TempString, "%x", &Value32);
+ Value->Data3 = (UINT16) Value32;
+ //
+ // Parse the "AAAA" as two bytes
+ //
+ if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {
+ goto Done;
+ }
+
+ mGlobals.SourceFile.FileBufferPtr++;
+ Len = GetHexChars (TempString, sizeof (TempString));
+ if ((Len == 0) || (Len > 4)) {
+ goto Done;
+ }
+
+ sscanf (TempString, "%x", &Value32);
+ Value->Data4[0] = (UINT8) (Value32 >> 8);
+ Value->Data4[1] = (UINT8) Value32;
+ if (mGlobals.SourceFile.FileBufferPtr[0] != '-') {
+ goto Done;
+ }
+
+ mGlobals.SourceFile.FileBufferPtr++;
+ //
+ // Read the last 6 bytes of the GUID
+ //
+ //
+ Len = GetHexChars (TempString, sizeof (TempString));
+ if ((Len == 0) || (Len > 12)) {
+ goto Done;
+ }
+ //
+ // Insert leading 0's to make life easier
+ //
+ if (Len != 12) {
+ From = TempString + Len - 1;
+ To = TempString + 11;
+ TempString[12] = 0;
+ while (From >= TempString) {
+ *To = *From;
+ To--;
+ From--;
+ }
+
+ while (To >= TempString) {
+ *To = '0';
+ To--;
+ }
+ }
+ //
+ // Now parse each byte
+ //
+ TempString2[2] = 0;
+ for (Index = 0; Index < 6; Index++) {
+ //
+ // Copy the two characters from the input string to something
+ // we can parse.
+ //
+ TempString2[0] = TempString[Index * 2];
+ TempString2[1] = TempString[Index * 2 + 1];
+ sscanf (TempString2, "%x", &Value32);
+ Value->Data4[Index + 2] = (UINT8) Value32;
+ }
+
+ Status = TRUE;
+ } else {
+ //
+ // Unsupported GUID style
+ //
+ return FALSE;
+ }
+
+Done:
+ if (Status == FALSE) {
+ SetFilePosition (&FPos);
+ }
+
+ return Status;
+}
+
+STATIC
+STATUS
+GetFilePosition (
+ FILE_POSITION *Fpos
+ )
+{
+ Fpos->FileBufferPtr = mGlobals.SourceFile.FileBufferPtr;
+ return STATUS_SUCCESS;
+}
+
+STATIC
+STATUS
+SetFilePosition (
+ FILE_POSITION *Fpos
+ )
+{
+ //
+ // Should check range of pointer
+ //
+ mGlobals.SourceFile.FileBufferPtr = Fpos->FileBufferPtr;
+ return STATUS_SUCCESS;
+}