1#include <unistd.h>
2#include <errno.h>
3#include <fcntl.h>
4#include "syscall.h"
5
6void __procfdname(char *, unsigned);
7
8int fchdir(int fd)
9{
10	int ret = __syscall(SYS_fchdir, fd);
11	if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0)
12		return __syscall_ret(ret);
13
14	char buf[15+3*sizeof(int)];
15	__procfdname(buf, fd);
16	return syscall(SYS_chdir, buf);
17}
18