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

2 files changed, 7 insertions, 9 deletions

diff --git a/pkg/host/machine_info_linux.go b/pkg/host/machine_info_linux.go
index fb05382ba..fc3664c42 100644
--- a/pkg/host/machine_info_linux.go
+++ b/pkg/host/machine_info_linux.go
@@ -7,7 +7,6 @@ import (
 	"bufio"
 	"bytes"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -86,7 +85,7 @@ func allEqual(slice []string) bool {
 }
 
 func readKVMInfo(buffer *bytes.Buffer) error {
-	files, err := ioutil.ReadDir("/sys/module/")
+	files, err := os.ReadDir("/sys/module/")
 	if err != nil {
 		return err
 	}
@@ -98,7 +97,7 @@ func readKVMInfo(buffer *bytes.Buffer) error {
 		}
 
 		paramPath := filepath.Join("/sys", "module", name, "parameters")
-		params, err := ioutil.ReadDir(paramPath)
+		params, err := os.ReadDir(paramPath)
 		if err != nil {
 			if os.IsNotExist(err) {
 				continue
@@ -113,7 +112,7 @@ func readKVMInfo(buffer *bytes.Buffer) error {
 		fmt.Fprintf(buffer, "/sys/module/%s:\n", name)
 		for _, key := range params {
 			keyName := key.Name()
-			data, err := ioutil.ReadFile(filepath.Join(paramPath, keyName))
+			data, err := os.ReadFile(filepath.Join(paramPath, keyName))
 			if err != nil {
 				return err
 			}
@@ -127,7 +126,7 @@ func readKVMInfo(buffer *bytes.Buffer) error {
 
 func getModulesInfo() ([]KernelModule, error) {
 	var modules []KernelModule
-	modulesText, _ := ioutil.ReadFile("/proc/modules")
+	modulesText, _ := os.ReadFile("/proc/modules")
 	re := regexp.MustCompile(`(\w+) .*(0[x|X][a-fA-F0-9]+)[^\n]*`)
 	for _, m := range re.FindAllSubmatch(modulesText, -1) {
 		addr, err := strconv.ParseUint(string(m[2]), 0, 64)
diff --git a/pkg/host/syscalls_linux.go b/pkg/host/syscalls_linux.go
index 6425fcce7..67efd9295 100644
--- a/pkg/host/syscalls_linux.go
+++ b/pkg/host/syscalls_linux.go
@@ -6,7 +6,6 @@ package host
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"regexp"
 	"runtime"
@@ -58,7 +57,7 @@ func isSupportedSyscall(c *prog.Syscall, target *prog.Target) (bool, string) {
 	// Kallsyms seems to be the most reliable and fast. That's what we use first.
 	// If kallsyms is not present, we fallback to execution of syscalls.
 	kallsymsOnce.Do(func() {
-		kallsyms, _ := ioutil.ReadFile("/proc/kallsyms")
+		kallsyms, _ := os.ReadFile("/proc/kallsyms")
 		if len(kallsyms) == 0 {
 			return
 		}
@@ -390,7 +389,7 @@ func isSupportedSyzOpenDev(sandbox string, c *prog.Syscall) (bool, string) {
 
 func isSupportedLSM(c *prog.Syscall) string {
 	lsmOnce.Do(func() {
-		data, err := ioutil.ReadFile("/sys/kernel/security/lsm")
+		data, err := os.ReadFile("/sys/kernel/security/lsm")
 		if err != nil {
 			// securityfs may not be mounted, but it does not mean
 			// that no LSMs are enabled.
@@ -522,7 +521,7 @@ func isSupportedMount(c *prog.Syscall, sandbox string) (bool, string) {
 
 func isSupportedFilesystem(fstype string) (bool, string) {
 	filesystemsOnce.Do(func() {
-		filesystems, _ = ioutil.ReadFile("/proc/filesystems")
+		filesystems, _ = os.ReadFile("/proc/filesystems")
 	})
 	if !bytes.Contains(filesystems, []byte("\t"+fstype+"\n")) {
 		return false, fmt.Sprintf("/proc/filesystems does not contain %v", fstype)