patch to github.com/zstyblik/go-facter/lib/host/host.go

host.go.patch

--- host.orig.go	2017-02-03 23:03:06.070727000 -0800
+++ host.go	2017-02-03 23:03:22.349835000 -0800
@@ -53,6 +53,19 @@
 	return strings.TrimRight(string(b), "\x00")
 }
 
+// uint8ToString converts [65]uint8 in syscall.Utsname to string
+func uint8ToString(bs [65]uint8) string {
+	b := make([]byte, len(bs))
+	for i, v := range bs {
+		if v < 0 {
+			b[i] = byte(256 + uint(v))
+		} else {
+			b[i] = byte(v)
+		}
+	}
+	return strings.TrimRight(string(b), "\x00")
+}
+
 // GetHostFacts gathers facts related to Host
 func GetHostFacts(f Facter) error {
 	hostInfo, err := h.Info()
@@ -105,14 +118,14 @@
 	var uname syscall.Utsname
 	err = syscall.Uname(&uname)
 	if err == nil {
-		kernelRelease := int8ToString(uname.Release)
+		kernelRelease := uint8ToString(uname.Release)
 		kernelVersion := strings.Split(kernelRelease, "-")[0]
 		kvSplitted := strings.Split(kernelVersion, ".")
 		f.Add("kernelrelease", kernelRelease)
 		f.Add("kernelversion", kernelVersion)
 		f.Add("kernelmajversion", strings.Join(kvSplitted[0:2], "."))
 
-		hardwareModel := int8ToString(uname.Machine)
+		hardwareModel := uint8ToString(uname.Machine)
 		f.Add("hardwaremodel", hardwareModel)
 		f.Add("architecture", guessArch(hardwareModel))
 	}