1#include <sys/stat.h>
 2#include <errno.h>
 3#include <fcntl.h>
 4#include "syscall.h"
 5
 6int fchmod(int fd, mode_t mode)
 7{
 8	int ret = __syscall(SYS_fchmod, fd, mode);
 9	if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0)
10		return __syscall_ret(ret);
11
12	char buf[15+3*sizeof(int)];
13	__procfdname(buf, fd);
14#ifdef SYS_chmod
15	return syscall(SYS_chmod, buf, mode);
16#else
17	return syscall(SYS_fchmodat, AT_FDCWD, buf, mode);
18#endif
19}