/* $Id: xstrdup.c,v 1.4 2002/03/02 20:35:52 sverrehu Exp $ */
/*------------------------------------------------------------------------
 |  FILE            xstrdup.c
 |  MODULE OF       xalloc - memory allocation with error checking
 |
 |  DESCRIPTION     strdup-matching routine. Aborts program or calls a
 |                  user supplied function if no more memory left.
 |
 |  WRITTEN BY      Sverre H. Huseby <shh@thathost.com>
 +----------------------------------------------------------------------*/

#include <stdlib.h>
#include <string.h>

#include "xalloc.h"

extern void _xaOutOfMem(void);

/*-----------------------------------------------------------------------+
|  PUBLIC FUNCTIONS                                                      |
+-----------------------------------------------------------------------*/

/*------------------------------------------------------------------------
 |  NAME          xstrdup
 |
 |  FUNCTION      Do as strdup(3), but with error handling.
 |
 |  SYNOPSIS      #include "xalloc.h"
 |                char *xstrdup(size_t size);
 |
 |  INPUT         size    number of bytes to allocate.
 |
 |  RETURNS       Pointer to buffer allocated. Never returns in case
 |                of error.
 */
char *
xstrdup(const char *s)
{
    char *ret;

    if ((ret = strdup(s)) == NULL)
	_xaOutOfMem();
    return ret;
}