Add AIX platform support

console_other.go

@@ -1,5 +1,5 @@
-//go:build !darwin && !freebsd && !linux && !netbsd && !openbsd && !windows && !zos
-// +build !darwin,!freebsd,!linux,!netbsd,!openbsd,!windows,!zos
+//go:build !aix && !darwin && !freebsd && !linux && !netbsd && !openbsd && !windows && !zos
+// +build !aix,!darwin,!freebsd,!linux,!netbsd,!openbsd,!windows,!zos
 
 /*
  Copyright The containerd Authors.

console_test.go

@@ -1,5 +1,5 @@
-//go:build linux || zos || freebsd
-// +build linux zos freebsd
+//go:build aix || linux || zos || freebsd
+// +build aix linux zos freebsd
 
 /*
  Copyright The containerd Authors.

console_unix.go

@@ -1,5 +1,5 @@
-//go:build darwin || freebsd || linux || netbsd || openbsd || zos
-// +build darwin freebsd linux netbsd openbsd zos
+//go:build aix || darwin || freebsd || linux || netbsd || openbsd || zos
+// +build aix darwin freebsd linux netbsd openbsd zos
 
 /*
  Copyright The containerd Authors.

pty_aix.go

@@ -0,0 +1,31 @@
+//go:build aix
+// +build aix
+
+/*
+ Copyright The containerd Authors.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+package console
+
+import (
+	"os"
+
+	"golang.org/x/sys/unix"
+)
+
+// openpt allocates a new pseudo-terminal by opening the /dev/ptmx device
+func openpt() (*os.File, error) {
+	return os.OpenFile("/dev/ptc", unix.O_RDWR|unix.O_NOCTTY|unix.O_CLOEXEC, 0)
+}

tc_aix_cgo.go

@@ -0,0 +1,50 @@
+//go:build aix && cgo
+// +build aix,cgo
+
+/*
+ Copyright The containerd Authors.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+package console
+
+import (
+	"golang.org/x/sys/unix"
+)
+
+//#include <stdlib.h>
+import "C"
+
+const (
+	cmdTcGet = unix.TCGETS
+	cmdTcSet = unix.TCSETS
+)
+
+// ptsname retrieves the name of the first available pts for the given master.
+func ptsname(f File) (string, error) {
+	ptspath, err := C.ptsname(C.int(f.Fd()))
+	if err != nil {
+ return "", err
+	}
+	return C.GoString(ptspath), nil
+}
+
+// unlockpt unlocks the slave pseudoterminal device corresponding to the master pseudoterminal referred to by f.
+// unlockpt should be called before opening the slave side of a pty.
+func unlockpt(f File) error {
+	if _, err := C.grantpt(C.int(f.Fd())); err != nil {
+ return err
+	}
+	return nil
+}

tc_aix_nocgo.go

@@ -0,0 +1,46 @@
+//go:build aix && !cgo
+// +build aix,!cgo
+
+/*
+ Copyright The containerd Authors.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+//
+// Implementing the functions below requires cgo support. Non-cgo stubs
+// versions are defined below to enable cross-compilation of source code
+// that depends on these functions, but the resultant cross-compiled
+// binaries cannot actually be used. If the stub function(s) below are
+// actually invoked they will display an error message and cause the
+// calling process to exit.
+//
+
+package console
+
+import (
+	"golang.org/x/sys/unix"
+)
+
+const (
+	cmdTcGet = unix.TCGETS
+	cmdTcSet = unix.TCSETS
+)
+
+func ptsname(f File) (string, error) {
+	panic("ptsname() support requires cgo.")
+}
+
+func unlockpt(f File) error {
+	panic("unlockpt() support requires cgo.")
+}

tc_unix.go

@@ -1,5 +1,5 @@
-//go:build darwin || freebsd || linux || netbsd || openbsd || zos
-// +build darwin freebsd linux netbsd openbsd zos
+//go:build aix || darwin || freebsd || linux || netbsd || openbsd || zos
+// +build aix darwin freebsd linux netbsd openbsd zos
 
 /*
  Copyright The containerd Authors.