BaseTools/VfrCompile: Remove unused local variables

[mirror_edk2.git] / BaseTools / Source / C / Common / ParseGuidedSectionTools.c

/** @file\r
Helper functions for parsing GuidedSectionTools.txt\r
\r
Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials                          \r
are licensed and made available under the terms and conditions of the BSD License         \r
which accompanies this distribution.  The full text of the license may be found at        \r
http://opensource.org/licenses/bsd-license.php                                            \r
                                                                                          \r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
**/\r
\r
#include <assert.h>\r
#include <string.h>\r
#include <ctype.h>\r
#include <stdlib.h>\r
#include "MemoryFile.h"\r
#include "CommonLib.h"\r
#include "EfiUtilityMsgs.h"\r
#include "ParseInf.h"\r
#include "ParseGuidedSectionTools.h"\r
#include "StringFuncs.h"\r
\r
\r
//\r
// Local types / structures\r
//\r
\r
typedef struct _GUID_SEC_TOOL_ENTRY {\r
  EFI_GUID   Guid;\r
  CHAR8*     Name;\r
  CHAR8*     Path;\r
  struct _GUID_SEC_TOOL_ENTRY *Next;\r
} GUID_SEC_TOOL_ENTRY;\r
\r
//\r
// Functin Implementation\r
//\r
\r
EFI_HANDLE\r
ParseGuidedSectionToolsFile (\r
  IN CHAR8    *InputFile\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  This function parses the tools_def.txt file.  It returns a\r
  EFI_HANDLE object which can be used for the other library\r
  functions and should be passed to FreeParsedGuidedSectionToolsHandle\r
  to free resources when the tools_def.txt information is no\r
  longer needed.\r
\r
Arguments:\r
\r
  InputFile     Path name of file to read\r
\r
Returns:\r
\r
  NULL if error parsing\r
  A non-NULL EFI_HANDLE otherwise\r
\r
--*/\r
{\r
  EFI_STATUS Status;\r
  EFI_HANDLE MemoryFile;\r
  EFI_HANDLE ParsedGuidedSectionTools;\r
\r
  Status = GetMemoryFile (InputFile, &MemoryFile);\r
  if (EFI_ERROR (Status)) {\r
    return NULL;\r
  }\r
\r
  ParsedGuidedSectionTools = ParseGuidedSectionToolsMemoryFile (MemoryFile);\r
\r
  FreeMemoryFile (MemoryFile);\r
  \r
  return ParsedGuidedSectionTools;\r
}\r
\r
\r
EFI_HANDLE\r
ParseGuidedSectionToolsMemoryFile (\r
  IN EFI_HANDLE    InputFile\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  This function parses the tools_def.txt file.  It returns a\r
  EFI_HANDLE object which can be used for the other library\r
  functions and should be passed to FreeParsedGuidedSectionToolsHandle\r
  to free resources when the tools_def.txt information is no\r
  longer needed.\r
\r
Arguments:\r
\r
  InputFile     Memory file image.\r
\r
Returns:\r
\r
  NULL if error or EOF\r
  InputBuffer otherwise\r
\r
--*/\r
{\r
  EFI_STATUS  Status;\r
  CHAR8       *NextLine;\r
  STRING_LIST *Tool;\r
  EFI_GUID    Guid;\r
  GUID_SEC_TOOL_ENTRY *FirstGuidTool;\r
  GUID_SEC_TOOL_ENTRY *LastGuidTool;\r
  GUID_SEC_TOOL_ENTRY *NewGuidTool;\r
\r
  FirstGuidTool = NULL;\r
  LastGuidTool  = NULL;\r
\r
  while (TRUE) {\r
    NextLine = ReadMemoryFileLine (InputFile);\r
    if (NextLine == NULL) {\r
      break;\r
    }\r
    \r
    Status = StripInfDscStringInPlace (NextLine);\r
    if (EFI_ERROR (Status)) {\r
      break;\r
    }\r
\r
    if (NextLine[0] == '\0') {\r
      continue;\r
    }\r
\r
    Tool = SplitStringByWhitespace (NextLine);\r
    if ((Tool != NULL) &&\r
        (Tool->Count == 3)\r
       ) {\r
      Status = StringToGuid (Tool->Strings[0], &Guid);\r
      if (!EFI_ERROR (Status)) {\r
        NewGuidTool = malloc (sizeof (GUID_SEC_TOOL_ENTRY));\r
        if (NewGuidTool != NULL) {\r
          memcpy (&(NewGuidTool->Guid), &Guid, sizeof (Guid));\r
          NewGuidTool->Name = CloneString(Tool->Strings[1]);\r
          NewGuidTool->Path = CloneString(Tool->Strings[2]);\r
          NewGuidTool->Next = NULL;\r
\r
          if (FirstGuidTool == NULL) {\r
            FirstGuidTool = NewGuidTool;\r
          } else {\r
            LastGuidTool->Next = NewGuidTool;\r
          }\r
          LastGuidTool = NewGuidTool;\r
        }\r
      }\r
      FreeStringList (Tool);\r
    }\r
  }\r
\r
  return FirstGuidTool;\r
}\r
\r
\r
CHAR8*\r
LookupGuidedSectionToolPath (\r
  IN EFI_HANDLE ParsedGuidedSectionToolsHandle,\r
  IN EFI_GUID   *SectionGuid\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  This function looks up the appropriate tool to use for extracting\r
  a GUID defined FV section.\r
\r
Arguments:\r
\r
  ParsedGuidedSectionToolsHandle    A parsed GUID section tools handle.\r
  SectionGuid                       The GUID for the section.\r
\r
Returns:\r
\r
  NULL     - if no tool is found or there is another error\r
  Non-NULL - The tool to use to access the section contents.  (The caller\r
             must free the memory associated with this string.)\r
\r
--*/\r
{\r
  GUID_SEC_TOOL_ENTRY *GuidTool;\r
\r
  GuidTool = (GUID_SEC_TOOL_ENTRY*)ParsedGuidedSectionToolsHandle;\r
  if (GuidTool == NULL) {\r
    return NULL;\r
  }\r
\r
  for ( ; GuidTool != NULL; GuidTool = GuidTool->Next) {\r
    if (CompareGuid (&(GuidTool->Guid), SectionGuid) == 0) {\r
      return CloneString (GuidTool->Path);\r
    }\r
  }\r
\r
  return NULL;\r
}\r
\r
\r