return errno
	}
	return nil
}

//go:cgo_import_dynamic libc_ptsname_r ptsname_r "/usr/lib/libSystem.B.dylib"
func libc_ptsname_r_trampoline()

func Ptsname(fd int) (string, error) {
	buf := make([]byte, 256)
	_, _, errno := syscall_syscall6(abi.FuncPCABI0(libc_ptsname_r_trampoline),
		uintptr(fd),
		uintptr(unsafe.Pointer(&buf[0])),
		uintptr(len(buf)-1),
		0, 0, 0)
	if errno != 0 {
		return "", errno
	}

TEXT ·libc_grantpt_trampoline(SB),NOSPLIT,$0-0; JMP libc_grantpt(SB)
TEXT ·libc_unlockpt_trampoline(SB),NOSPLIT,$0-0; JMP libc_unlockpt(SB)
TEXT ·libc_ptsname_r_trampoline(SB),NOSPLIT,$0-0; JMP libc_ptsname_r(SB)
TEXT ·libc_posix_openpt_trampoline(SB),NOSPLIT,$0-0; JMP libc_posix_openpt(SB)
TEXT ·libc_getgrouplist_trampoline(SB),NOSPLIT,$0-0; JMP libc_getgrouplist(SB)