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#include "lib.h"
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include "dir.h"

int
ftruncate(int fd, off_t length)
{
        Dir d;

        if(length < 0){
                errno = EINVAL;
                return -1;
        }
        _nulldir(&d);
        d.length = length;
        if(_dirfwstat(fd, &d) < 0){
                _syserrno();
                return -1;
        }
        return 0;
}