sanity.cpp


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/** \file sanity.c
  Functions for performing sanity checks on the program state
*/
#include "config.h"

#include <stdlib.h>
#include <wchar.h>
#include <stdio.h>
#include <errno.h>
#include <termios.h>
#include <unistd.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>


#include "fallback.h"
#include "util.h"

#include "common.h"
#include "sanity.h"
#include "proc.h"
#include "history.h"
#include "reader.h"
#include "kill.h"
#include "wutil.h"


/**
   Status from earlier sanity checks
*/
static int insane;

void sanity_lose()
{
  debug( 0, _(L"Errors detected, shutting down. Break on sanity_lose() to debug.") );
  insane = 1;
}

int sanity_check()
{
  if( !insane )
    if( get_is_interactive() )
      history_sanity_check();
  if( !insane )
    reader_sanity_check();
  if( !insane )
    kill_sanity_check();
  if( !insane )
    proc_sanity_check();

  return insane;
}

void validate_pointer( const void *ptr, const wchar_t *err, int null_ok )
{

  /*
     Test if the pointer data crosses a segment boundary.
  */

  if( (0x00000003l & (intptr_t)ptr) != 0 )
  {
    debug( 0, _(L"The pointer '%ls' is invalid"), err );
    sanity_lose();
  }

  if((!null_ok) && (ptr==0))
  {
    debug( 0, _(L"The pointer '%ls' is null"), err );
    sanity_lose();
  }
}