/edk2/EdkCompatibilityPkg/Sample/Tools/Source/ModifyInf/ModifyInf.c

/*++



Copyright (c) 1999 - 2010, Intel Corporation. All rights reserved.<BR>

This program and the accompanying materials                          

are licensed and made available under the terms and conditions of the BSD License         

which accompanies this distribution.  The full text of the license may be found at        

http://opensource.org/licenses/bsd-license.php                                            

                                                                                          

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     

WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             



Module Name:



  ModifyInf.c



Abstract:



  It is a simple tool to modify some fields in a FV inf file 

  and output a new FV inf file.  



--*/



#include "stdio.h"

#include "string.h"



#define UTILITY_NAME    "ModifyInf"

#define UTILITY_VERSION "v1.0"

//

// Read a line into buffer including '\r\n'

//

int

ReadLine (

  char *LineBuffer,

  FILE *fp

  )

/*++



Routine Description:



  GC_TODO: Add function description



Arguments:



  LineBuffer  - GC_TODO: add argument description

  fp          - GC_TODO: add argument description



Returns:



  GC_TODO: add return values



--*/

{

  int   CharC;

  char  *Line;



  Line = LineBuffer;



  while ((CharC = fgetc (fp)) != EOF) {

    *Line++ = (char) CharC;

    if (CharC == 0x0a) {

      break;

    }

  }



  *Line = 0;



  if (CharC == EOF) {

    return 0;

  } else {

    return 1;

  }



}

//

// Write a line into output file

//

int

WriteLine (

  char *Line,

  FILE *fp

  )

/*++



Routine Description:



  GC_TODO: Add function description



Arguments:



  Line  - GC_TODO: add argument description

  fp    - GC_TODO: add argument description



Returns:



  GC_TODO: add return values



--*/

{

  fwrite (Line, strlen (Line), 1, fp);

  return 0;

}

//

// Apply patterns to a line

// Currently there are 2 patterns to support

// '==' replace a field value with a new value

// '+=' append a string at the end of original line

// '-'  prevent the line from applying any patterns

//      it has the highest priority

//

int

ApplyPattern (

  char *Line,

  char *argv[],

  int  argc

  )

/*++



Routine Description:



  GC_TODO: Add function description



Arguments:



  Line  - GC_TODO: add argument description

  ]     - GC_TODO: add argument description

  argc  - GC_TODO: add argument description



Returns:



  GC_TODO: add return values



--*/

{

  static char Section[256];

  int         SectionLength;

  char        PatternBuffer[256];

  char        *Pattern;

  char        *Pattern1;

  char        *Pattern2;

  int         PatternNum;

  char        *Ptr;



  Pattern     = PatternBuffer;



  PatternNum  = argc;



  //

  // For section field

  // record current scope section into static buffer

  //

  Ptr = Line;

  if (*Ptr == '[') {

    while (*Ptr != ']') {

      if (!(*Ptr++)) {

        return -1;

      }

    }

    SectionLength = Ptr - Line + 1;

    SectionLength = SectionLength > 255 ? 255 : SectionLength;

    strncpy (Section, Line, SectionLength);

    Section[SectionLength] = 0;

  }

  //

  // Apply each pattern on the line

  //

  while (PatternNum-- > 3) {



    strcpy (Pattern, argv[PatternNum]);



    //

    // For pattern '-'

    // keep it unmodified by other patterns

    //

    if (*Pattern == '-') {

      if (strstr (Line, Pattern + 1)) {

        return 0;

      } else {

        continue;

      }

    }

    //

    // For other patterns

    // get its section at first if it has

    //

    if (*Pattern == '[') {

      if (strncmp (Section, Pattern, strlen (Section))) {

        //

        // This pattern can't be appied for current section

        //

        continue;

      }

      //

      // Strip the section field

      //

      while (*Pattern != ']') {

        if (!(*Pattern++)) {

          return -1;

        }

      }



      Pattern++;

    }

    //

    // Apply patterns

    //

    Pattern1  = strstr (Pattern, "==");

    Pattern2  = strstr (Pattern, "+=");

    if (Pattern1) {

      //

      // For pattern '=='

      // replace the field value with a new string

      //

      if (!strncmp (Line, Pattern, Pattern1 - Pattern)) {

        Pattern1 += 2;

        Ptr = strstr (Line, "=");

        if (!Ptr) {

          return -1;

        }



        while (*(++Ptr) == ' ')

          ;

        *Ptr = 0;

        strcat (Line, Pattern1);

        strcat (Line, "\r\n");

      }

    } else if (Pattern2) {

      //

      // For pattern '+='

      // append a string at end of the original string

      //

      if (!strncmp (Line, Pattern, Pattern2 - Pattern)) {

        Pattern2 += 2;

        Ptr = Line;

        while (*Ptr != 0x0D && *Ptr != 0x0A) {

          Ptr++;

        }



        *Ptr = 0;

        strcat (Line, Pattern2);

        strcat (Line, "\r\n");

      }

    }

  }



  return 0;

}



void

Usage (

  void

  )

/*++



Routine Description:



  GC_TODO: Add function description



Arguments:



  None



Returns:



  GC_TODO: add return values



--*/

{

  int         Index;

  const char  *Str[] = {

    UTILITY_NAME" "UTILITY_VERSION" - Intel Modify INF File Utility",

    "  Copyright (C), 1999 - 2008 Intel Corporation",

    

#if ( defined(UTILITY_BUILD) && defined(UTILITY_VENDOR) )

    "  Built from "UTILITY_BUILD", project of "UTILITY_VENDOR,

#endif

    "",

    "Usage:",

    "  "UTILITY_NAME" SOURCE DEST [PATTERN]",

    NULL

  };

  for (Index = 0; Str[Index] != NULL; Index++) {

    fprintf (stdout, "%s\n", Str[Index]);

  }  

}



int

main (

  int argc,

  char*argv[]

  )

/*++



Routine Description:



  GC_TODO: Add function description



Arguments:



  argc  - GC_TODO: add argument description

  ]     - GC_TODO: add argument description



Returns:



  GC_TODO: add return values



--*/

{

  char  LineBuffer[256];

  FILE  *fpin;

  FILE  *fpout;



  if (argc < 3) {

    Usage ();

    return -1;

  }



  fpin = fopen (argv[1], "rb");

  if (!fpin) {

    printf ("Can't open input file!\r\n");

    return -1;

  }



  fpout = fopen (argv[2], "wb");

  if (!fpout) {

    fclose (fpin);

    printf ("Can't create output file!\r\n");

    return -1;

  }



  while (ReadLine (LineBuffer, fpin)) {

    ApplyPattern (LineBuffer, argv, argc);

    WriteLine (LineBuffer, fpout);

  }



  fclose (fpin);

  fclose (fpout);



  return 0;

}