view src/gpf2/misc/printtofile.c @ 516:1ed9de6c90bd

src/g23m-gsm/sms/sms_for.c: bogus malloc removed The new error handling code that was not present in TCS211 blob version contains a malloc call that is bogus for 3 reasons: 1) The memory allocation in question is not needed in the first place; 2) libc malloc is used instead of one of the firmware's proper ways; 3) The memory allocation is made inside a function and then never freed, i.e., a memory leak. This bug was caught in gcc-built FreeCalypso fw projects (Citrine and Selenite) because our gcc environment does not allow any use of libc malloc (any reference to malloc produces a link failure), but this code from TCS3.2 is wrong even for Magnetite: if this code path is executed repeatedly over a long time, the many small allocations made by this malloc call without a subsequent free will eventually exhaust the malloc heap provided by the TMS470 environment, malloc will start returning NULL, and the bogus code will treat it as an error. Because the memory allocation in question is not needed at all, the fix entails simply removing it.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 22 Jul 2018 06:04:49 +0000
parents cd37d228dae0
children
line wrap: on
line source

/* 
+------------------------------------------------------------------------------
|  File:       printToFile.c
+------------------------------------------------------------------------------
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
| Purpose:     This module implements some stream output functions.
+----------------------------------------------------------------------------- 
*/ 

#ifndef __PRINTTOFILE_C__
#define __PRINTTOFILE_C__
#endif
 
#ifndef _TARGET_

/*==== INCLUDES ===================================================*/

#include "printtofile.h"

#include "typedefs.h"
#ifndef _LINUX_
#include <string.h>
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include "windows.h"
#include "vsi.h"
#include "time.h"
#include <sys/types.h>
#include <sys/timeb.h>
#endif /* _LINUX_ */

/*==== TYPES ======================================================*/


/*==== CONSTANTS ==================================================*/


/*==== EXTERNALS ==================================================*/


/*==== VARIABLES ==================================================*/

#ifndef _LINUX_
static HANDLE mutEx;
#endif /* _LINUX_ */

/*==== FUNCTIONS ==================================================*/

#ifndef RUN_INT_RAM
/*
+------------------------------------------------------------------------------
|  Function     :  PrintToFile
+------------------------------------------------------------------------------
|  Description  :  print to file xx and do a printf() with ident. arguments
|
|  Parameters   :  const char *format, ... variable parameter list
|
|  Return       :  printf retval
|                  
+------------------------------------------------------------------------------
*/
void initPrintToFile()
{
#ifdef _LINUX_
  return;
#else /* _LINUX_ */
#ifndef _TARGET_
#ifdef _DEBUG
  FILE *fp;
#endif

  if ( (mutEx = OpenMutex (MUTEX_ALL_ACCESS, FALSE, "PrintToFile")) == NULL )
  {
    mutEx = CreateMutex( NULL, FALSE, "PrintToFile");
#ifdef _DEBUG
    fp = fopen("\\gpf\\BIN\\debug\\tstlog.txt", "w");
    PrintToFile("\n\nStart logging:\n");
#endif
  }

  if (mutEx == 0)
  {
    printf("PrintToFile semaphore creation failed!\n");
  }
#endif /* _LINUX_ */
#endif
}
#endif

#ifndef RUN_INT_RAM
/*
+------------------------------------------------------------------------------
|  Function     :  PrintToFile
+------------------------------------------------------------------------------
|  Description  :  print to file xx and do a printf() with ident. arguments
|
|  Parameters   :  const char *format, ... variable parameter list
|
|  Return       :  printf retval
|                  
+------------------------------------------------------------------------------
*/
int PrintToFile(const char *format, ... )
{
  int retval = 0;
#ifndef _LINUX_
#ifndef _TARGET_
  va_list unamedArgumentList;
  char* nextChar;
  int ival;
  char* sval;
#ifdef _DEBUG
  FILE *fp;
  struct _timeb timebuf;
  time_t seconds;
  unsigned long int t;
#endif
  
  if ( WaitForSingleObject (mutEx, INFINITE) == WAIT_FAILED )
  {
    printf("PrintToFile semaphore request failed! Is TST.exe up & running?\n");
    return -1;
  }
  va_start(unamedArgumentList, format);
#ifdef _DEBUG
  fp = fopen("\\gpf\\BIN\\debug\\tstlog.txt", "a");
  if ( fp != 0 )
  {
    time( &seconds );                   // seconds after 1.1.70 GMT
    _ftime( &timebuf );
    t = (unsigned long int)(seconds * 1000) + timebuf.millitm;

    /*lint -e668 */
    /*lint -e559 */
#ifdef _TOOLS_
  fprintf(fp, "TST   (%u): ", (unsigned int)t);
#else
  fprintf(fp, "Stack (%u): ", (unsigned int)t);
#endif
  }
#endif /* _DEBUG */

  /*lint -e662 */
  for (nextChar = (char*) format; *nextChar; nextChar++)
  {
    if (*nextChar != '%')
    {
      putchar(*nextChar);
#ifdef _DEBUG
      if (fp != 0)
      {
        fputc(*nextChar,fp);
      }
#endif
      continue;
    }

    switch (*++nextChar)
    {
      case 'd':
        ival = va_arg(unamedArgumentList, int);
        printf("%d", ival);
#ifdef _DEBUG
        if (fp != 0)
        {
          fprintf(fp, "%d", ival);
        }
#endif
        break;
      case 'x':
        ival = va_arg(unamedArgumentList, int);
        printf("%x", ival);
#ifdef _DEBUG
        if (fp != 0)
        {
          fprintf(fp, "%x", ival);
        }
#endif
        break;
      case 's':
        for(sval = va_arg(unamedArgumentList, char*); *sval; sval++)
        {
          putchar(*sval);
#ifdef _DEBUG
          if (fp != 0)
          {
            fputc(*sval,fp);
          }
#endif
        }
        break;
     default:
        putchar(*nextChar);
#ifdef _DEBUG
        if (fp != 0)
        {
          fputc(*nextChar,fp);
        }
#endif
        break;
    }
  }
  /*lint +e662 */
  va_end(unamedArgumentList);
#ifdef _DEBUG
  if (fp != 0)
  {
    fclose(fp);
  }
#endif
  ReleaseMutex(mutEx);
#endif /* !_LINUX_ */
#endif /* _TARGET_ */
  return retval;
}
#endif
#endif