/*++

Copyright (c)  1999 - 2002 Intel Corporation. All rights reserved
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.


Module Name:
  
  EfiCompressMain.c

Abstract:

  The main function for the compression utility.
  
--*/

#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>

#include <Common/UefiBaseTypes.h>

#include "EfiCompress.h"

int
main (
  INT32 argc,
  CHAR8 *argv[]
  )
/*++

Routine Description:

  Compresses the input files

Arguments:

  argc   - number of arguments passed into the command line.
  argv[] - files to compress and files to output compressed data to.

Returns:

  int: 0 for successful execution of the function.

--*/
{
  EFI_STATUS  Status;
  FILE        *infile;
  FILE        *outfile;
  UINT32      SrcSize;
  UINT32      DstSize;
  UINT8       *SrcBuffer;
  UINT8       *DstBuffer;
  UINT8       Buffer[8];

  //
  //  Added for makefile debug - KCE
  //
  INT32       arg_counter;
  printf ("\n\n");
  for (arg_counter = 0; arg_counter < argc; arg_counter++) {
    printf ("%s ", argv[arg_counter]);
  }

  printf ("\n\n");

  SrcBuffer             = DstBuffer = NULL;

  infile                = outfile = NULL;

  if (argc != 3) {
    printf ("Usage: EFICOMPRESS <infile> <outfile>\n");
    goto Done;
  }

  if ((outfile = fopen (argv[2], "wb")) == NULL) {
    printf ("Can't open output file\n");
    goto Done;
  }

  if ((infile = fopen (argv[1], "rb")) == NULL) {
    printf ("Can't open input file\n");
    goto Done;
  }
  //
  // Get the size of source file
  //
  SrcSize = 0;
  while (fread (Buffer, 1, 1, infile)) {
    SrcSize++;

  }
  //
  // Read in the source data
  //
  if ((SrcBuffer = malloc (SrcSize)) == NULL) {
    printf ("Can't allocate memory\n");
    goto Done;
  }

  rewind (infile);
  if (fread (SrcBuffer, 1, SrcSize, infile) != SrcSize) {
    printf ("Can't read from source\n");
    goto Done;
  }
  //
  // Get destination data size and do the compression
  //
  DstSize = 0;
  Status  = Compress (SrcBuffer, SrcSize, DstBuffer, &DstSize);
  if (Status == EFI_BUFFER_TOO_SMALL) {
    if ((DstBuffer = malloc (DstSize)) == NULL) {
      printf ("Can't allocate memory\n");
      goto Done;
    }

    Status = Compress (SrcBuffer, SrcSize, DstBuffer, &DstSize);
  }

  if (EFI_ERROR (Status)) {
    printf ("Compress Error\n");
    goto Done;
  }

  printf ("\nOrig Size = %ld\n", SrcSize);
  printf ("Comp Size = %ld\n", DstSize);

  if (DstBuffer == NULL) {
    printf ("No destination to write to.\n");
    goto Done;
  }
  //
  // Write out the result
  //
  if (fwrite (DstBuffer, 1, DstSize, outfile) != DstSize) {
    printf ("Can't write to destination file\n");
  }

Done:
  if (SrcBuffer) {
    free (SrcBuffer);
  }

  if (DstBuffer) {
    free (DstBuffer);
  }

  if (infile) {
    fclose (infile);
  }

  if (outfile) {
    fclose (outfile);
  }

  return 0;
}
