all: ioutil is deprecated in go1.19 (#3718)

4 files changed, 7 insertions, 11 deletions

diff --git a/pkg/osutil/fileutil.go b/pkg/osutil/fileutil.go
index f3bcf0e30..966560649 100644
--- a/pkg/osutil/fileutil.go
+++ b/pkg/osutil/fileutil.go
@@ -6,7 +6,6 @@ package osutil
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 )
 
@@ -54,7 +53,7 @@ func Rename(oldFile, newFile string) error {
 // WriteTempFile writes data to a temp file and returns its name.
 func WriteTempFile(data []byte) (string, error) {
 	// Note: pkg/report knows about "syzkaller" prefix as it appears in crashes as process name.
-	f, err := ioutil.TempFile("", "syzkaller")
+	f, err := os.CreateTemp("", "syzkaller")
 	if err != nil {
 		return "", fmt.Errorf("failed to create a temp file: %v", err)
 	}
diff --git a/pkg/osutil/osutil.go b/pkg/osutil/osutil.go
index 6ac96b344..ba1fb8729 100644
--- a/pkg/osutil/osutil.go
+++ b/pkg/osutil/osutil.go
@@ -9,7 +9,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -235,7 +234,7 @@ func CopyDirRecursively(srcDir, dstDir string) error {
 	if err := MkdirAll(dstDir); err != nil {
 		return err
 	}
-	files, err := ioutil.ReadDir(srcDir)
+	files, err := os.ReadDir(srcDir)
 	if err != nil {
 		return err
 	}
@@ -273,7 +272,7 @@ func MkdirAll(dir string) error {
 }
 
 func WriteFile(filename string, data []byte) error {
-	return ioutil.WriteFile(filename, data, DefaultFilePerm)
+	return os.WriteFile(filename, data, DefaultFilePerm)
 }
 
 func WriteGzipStream(filename string, reader io.Reader) error {
@@ -290,13 +289,13 @@ func WriteGzipStream(filename string, reader io.Reader) error {
 
 func WriteExecFile(filename string, data []byte) error {
 	os.Remove(filename)
-	return ioutil.WriteFile(filename, data, DefaultExecPerm)
+	return os.WriteFile(filename, data, DefaultExecPerm)
 }
 
 // TempFile creates a unique temp filename.
 // Note: the file already exists when the function returns.
 func TempFile(prefix string) (string, error) {
-	f, err := ioutil.TempFile("", prefix)
+	f, err := os.CreateTemp("", prefix)
 	if err != nil {
 		return "", fmt.Errorf("failed to create temp file: %v", err)
 	}
diff --git a/pkg/osutil/osutil_linux.go b/pkg/osutil/osutil_linux.go
index fb7a0670c..6585713ac 100644
--- a/pkg/osutil/osutil_linux.go
+++ b/pkg/osutil/osutil_linux.go
@@ -5,7 +5,6 @@ package osutil
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -20,7 +19,7 @@ import (
 
 // RemoveAll is similar to os.RemoveAll, but can handle more cases.
 func RemoveAll(dir string) error {
-	files, _ := ioutil.ReadDir(dir)
+	files, _ := os.ReadDir(dir)
 	for _, f := range files {
 		name := filepath.Join(dir, f.Name())
 		if f.IsDir() {
diff --git a/pkg/osutil/osutil_unix.go b/pkg/osutil/osutil_unix.go
index 33cb09e40..5563fb5fd 100644
--- a/pkg/osutil/osutil_unix.go
+++ b/pkg/osutil/osutil_unix.go
@@ -9,7 +9,6 @@ package osutil
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"os/signal"
 	"path/filepath"
@@ -54,7 +53,7 @@ func ProcessTempDir(where string) (string, error) {
 }
 
 func cleanupTempDir(path, pidfile string) bool {
-	data, err := ioutil.ReadFile(pidfile)
+	data, err := os.ReadFile(pidfile)
 	if err == nil && len(data) > 0 {
 		pid, err := strconv.Atoi(string(data))
 		if err == nil && pid > 1 {