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/*
* (c) Copyright 1990 Conor P. Cahill (uunet!virtech!cpcahil).
* You may copy, distribute, and use this software as long as this
* copyright statement is not removed.
*/
#include <stdio.h>
#include <fcntl.h>
#include "malloc.h"
/*
* Function: mallopt()
*
* Purpose: to set options for the malloc debugging library
*
* Arguments: none
*
* Returns: nothing of any value
*
* Narrative:
*
*/
#ifndef lint
static
char rcs_hdr[] = "$Id: mallopt.c,v 1.2 2006-07-25 10:09:05 rt Exp $";
#endif
int
mallopt(cmd,value)
int cmd;
union malloptarg value;
{
int i;
extern int malloc_checking;
extern char * malloc_data_start;
extern int malloc_errfd;
extern int malloc_fatal_level;
void malloc_init();
extern int malloc_warn_level;
register char * s;
/*
* If not initialized...
*/
if( malloc_data_start == (char *) 0)
{
malloc_init();
}
switch(cmd)
{
case MALLOC_WARN:
malloc_warn_level = value.i;
break;
case MALLOC_FATAL:
malloc_fatal_level = value.i;
break;
case MALLOC_CKCHAIN:
malloc_checking = value.i;
break;
case MALLOC_ERRFILE:
i = open(value.str,O_CREAT|O_APPEND|O_WRONLY,0666);
if( i == -1 )
{
(void) write(2,
"Unable to open malloc error file: ",
(unsigned) 34);
for(s=value.str; *s; s++)
{
/* do nothing */;
}
(void) write(2,value.str,
(unsigned)(s-value.str));
(void) write(2,"\n",(unsigned)1);
}
else
{
if( malloc_errfd != 2 )
{
(void) close(malloc_errfd);
}
malloc_errfd = i;
}
break;
default:
return(1);
}
return(0);
}
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