#include <stdlib.h>
#include <string.h>
#include <gclib/mem.h>
#include <gclib/strfuncs.h>

/*
 * Like strndup, but only returns NULL if str is NULL.
 * Note that this routine copies n bytes rather than n characters.
 */
char *str_ndup(const char *str,size_t n)
{
    char *dup;
    if (!str)
	return NULL;
    dup=mem_alloc0(n+1,1);
    strncpy(dup,str,n);
    return dup;
}

/*
 * Like strdup, but only returns NULL if str is NULL.
 */
char *str_dup(const char *str)
{
    return str_ndup(str,strlen(str));
}