view src/aci2/aci/line_edit.h @ 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 93999a60b835
children
line wrap: on
line source

/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   :  line
+----------------------------------------------------------------------------- 
|  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 modul ...
+----------------------------------------------------------------------------- 
*/ 

#ifndef LINE_EDIT_H
#define LINE_EDIT_H

/*
 ****************************************************************************************************
 * public stuff                                                                                     *
 ****************************************************************************************************
 */
typedef enum
{
  LEDIT_FAIL = -1,
  LEDIT_EXCT =  0,
  LEDIT_CMPL,
  LEDIT_COLLECT,
  LEDIT_ESC,     /* in text mode do nothing when received ESC */
  LEDIT_OK,      /* for single <CR> and simple "AT<CR>"       */
  LEDIT_IGNORE   /* ignore chars before A and between A..T    */
} T_LEDIT_RSLT;

#define LEDIT_ERR_NONE -1

typedef enum 
{
/*000*/  LEDIT_ERR_NoMemory    = 0,
/*001*/  LEDIT_ERR_NoMaintenance,
/*002*/  LEDIT_ERR_NoValidCommand,
/*003*/  LEDIT_ERR_LastCmdPending,
/*004*/  LEDIT_ERR_Unknown
} T_LEDIT_ERR_CODE;

typedef struct  /* error code - error message mapping */
{
  CHAR*            msg;  /* error message */
  T_LEDIT_ERR_CODE code; /* error code    */
} T_LEDIT_ERR;


typedef enum
{
  LEDIT_CTRL_ERROR,
  LEDIT_CTRL_CMPL,
  LEDIT_CTRL_REMOVE_SRC,
  LEDIT_CTRL_PROMPT,
  LEDIT_CTRL_CRLF_PROMPT,
  LEDIT_CTRL_MORE_CMDS
} T_LEDIT_CTRL;


typedef struct
{
  UBYTE  S3;    /* CR  */
  UBYTE  S4;    /* LF  */
  UBYTE  S5;    /* BS  */
  UBYTE  atE;   /* Command Echo: ON                   */
  UBYTE  smsEnd;/* want to be non V25.ter conform     */
} T_LEDIT;      /* initial  = {13, 10,  8, 1, 0x1a};  */
                /*             S3  S4  S5  E, smsEnd  */
                /* done by liblineedit.a              */
                /* can be overwritten by ledit_ctrl() */

typedef enum
{
  LEDIT_ATCMD_NIL        = 0x00,
  LEDIT_ATCMD_AND        = 0x26,  /* '&' */
  LEDIT_ATCMD_BASIC      = 0x42,  /* 'B' */
  LEDIT_ATCMD_DIAL       = 0x44,  /* 'D' */
  LEDIT_ATCMD_EXTENDED   = 0x45,  /* 'E' */
  LEDIT_ATCMD_S          = 0x53   /* 'S' */
} T_LEDIT_ATCMD_MAINTYPE;

typedef enum
{
  LEDIT_ATCMD_QUERY      = 0x51,
  LEDIT_ATCMD_SET        = 0x53,  /* 'S' */
  LEDIT_ATCMD_TEST       = 0x54   /* 'T' */
} T_LEDIT_ATCMD_SUBTYPE;

typedef struct
{
  T_LEDIT_ATCMD_MAINTYPE mType;
  T_LEDIT_ATCMD_SUBTYPE  sType;  
  UBYTE append_Flag;
} T_LEDIT_ATCMD_TYPE;


typedef struct
{
  T_LEDIT_ATCMD_TYPE  type;   
  char  *name;   
  char  *params;  
} T_LEDIT_ATCMD;

/*
 *  taken from ACI.doc, must be removed when including "P_ACI.val" !
 *  #define MAX_CMD_LEN 350
 */

/*
 * global echo buffer
 */
EXTERN char g_ledit_echoBuf[MAX_CMD_LEN+1];
/* 
 *  public functions
 */
EXTERN T_LEDIT_RSLT ledit_cmd        (UBYTE src_id, const UBYTE *chars, USHORT len);
EXTERN T_LEDIT_RSLT ledit_text       (UBYTE src_id, const UBYTE *chars, USHORT len);
EXTERN T_LEDIT_RSLT ledit_get_first  (UBYTE src_id, T_LEDIT_ATCMD **cmd);
EXTERN T_LEDIT_RSLT ledit_get_next   (UBYTE src_id, T_LEDIT_ATCMD **cmd);
EXTERN T_LEDIT_RSLT ledit_get_current(UBYTE src_id, T_LEDIT_ATCMD **cmd);
EXTERN T_LEDIT_RSLT ledit_get_text   (UBYTE src_id, char **txt);
EXTERN T_LEDIT_RSLT ledit_ctrl       (UBYTE src_id, T_LEDIT_CTRL ctrl, T_LEDIT_ERR **err);
EXTERN T_LEDIT_RSLT ledit_set_config (UBYTE src_id, T_LEDIT line);
EXTERN T_LEDIT_RSLT ledit_trace_line (UBYTE src_id, char *txt);

#endif