pkg/host: use unix.Utsname instead of syscall.Utsname

syscall.Utsname is hard to use portably, see:
https://github.com/google/syzkaller/pull/2418#issuecomment-774858512
Switch to unix.Utsname which does not have this problem.

1 files changed, 23 insertions, 0 deletions

diff --git a/pkg/host/features_linux_test.go b/pkg/host/features_linux_test.go
new file mode 100644
index 000000000..35d6197c1
--- /dev/null
+++ b/pkg/host/features_linux_test.go
@@ -0,0 +1,23 @@
+// Copyright 2021 syzkaller project authors. All rights reserved.
+// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
+
+package host
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestRequireKernel(t *testing.T) {
+	if what := requireKernel(2, 999); what != "" {
+		t.Fatalf("requireKernel(2, 999) failed: %v", what)
+	}
+	if what := requireKernel(3, 0); what != "" {
+		t.Fatalf("requireKernel(3, 0) failed: %v", what)
+	}
+	if what := requireKernel(99, 1); what == "" {
+		t.Fatalf("requireKernel(99, 1) succeeded")
+	} else if !strings.HasPrefix(what, "kernel 99.1 required") {
+		t.Fatalf("requireKernel(99, 1) failed: %v", what)
+	}
+}