#include <string.h>
#include <unistd.h>
#include <errno.h>
char *
getwd (char *buf)
{
char tmp[MAXPATHLEN];
if (buf == NULL)
errno = EINVAL;
return NULL;
}
if (getcwd (tmp, MAXPATHLEN) == NULL)
return strncpy (buf, tmp, MAXPATHLEN);