unix: add Renameat on dragonfly
Also add a test now that all unices have Renameat.
Change-Id: I9098662569e9910122dc686559bbd04be06328fa
Reviewed-on: https://go-review.googlesource.com/c/157898
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/unix/syscall_dragonfly.go b/unix/syscall_dragonfly.go
index 891c94d..962eee3 100644
--- a/unix/syscall_dragonfly.go
+++ b/unix/syscall_dragonfly.go
@@ -304,6 +304,7 @@
//sys read(fd int, p []byte) (n int, err error)
//sys Readlink(path string, buf []byte) (n int, err error)
//sys Rename(from string, to string) (err error)
+//sys Renameat(fromfd int, from string, tofd int, to string) (err error)
//sys Revoke(path string) (err error)
//sys Rmdir(path string) (err error)
//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
diff --git a/unix/syscall_unix_test.go b/unix/syscall_unix_test.go
index c1b1ea5..c393f68 100644
--- a/unix/syscall_unix_test.go
+++ b/unix/syscall_unix_test.go
@@ -623,6 +623,29 @@
}
}
+func TestRenameat(t *testing.T) {
+ defer chtmpdir(t)()
+
+ from, to := "renamefrom", "renameto"
+
+ touch(t, from)
+
+ err := unix.Renameat(unix.AT_FDCWD, from, unix.AT_FDCWD, to)
+ if err != nil {
+ t.Fatalf("Renameat: unexpected error: %v", err)
+ }
+
+ _, err = os.Stat(to)
+ if err != nil {
+ t.Error(err)
+ }
+
+ _, err = os.Stat(from)
+ if err == nil {
+ t.Errorf("Renameat: stat of renamed file %q unexpectedly suceeded", from)
+ }
+}
+
// mktmpfifo creates a temporary FIFO and provides a cleanup function.
func mktmpfifo(t *testing.T) (*os.File, func()) {
err := unix.Mkfifo("fifo", 0666)
diff --git a/unix/zsyscall_dragonfly_amd64.go b/unix/zsyscall_dragonfly_amd64.go
index da9986d..ae9f1a2 100644
--- a/unix/zsyscall_dragonfly_amd64.go
+++ b/unix/zsyscall_dragonfly_amd64.go
@@ -1194,6 +1194,26 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+func Renameat(fromfd int, from string, tofd int, to string) (err error) {
+ var _p0 *byte
+ _p0, err = BytePtrFromString(from)
+ if err != nil {
+ return
+ }
+ var _p1 *byte
+ _p1, err = BytePtrFromString(to)
+ if err != nil {
+ return
+ }
+ _, _, e1 := Syscall6(SYS_RENAMEAT, uintptr(fromfd), uintptr(unsafe.Pointer(_p0)), uintptr(tofd), uintptr(unsafe.Pointer(_p1)), 0, 0)
+ if e1 != 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
func Revoke(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
