Get the Docker Engine to build clean on Solaris

Signed-off-by: Amit Krishnan <krish.amit@gmail.com>

parsers/operatingsystem/operatingsystem_solaris.go

@@ -0,0 +1,37 @@
+// +build solaris,cgo
+
+package operatingsystem
+
+/*
+#include <zone.h>
+*/
+import "C"
+
+import (
+	"bytes"
+	"errors"
+	"io/ioutil"
+)
+
+var etcOsRelease = "/etc/release"
+
+// GetOperatingSystem gets the name of the current operating system.
+func GetOperatingSystem() (string, error) {
+	b, err := ioutil.ReadFile(etcOsRelease)
+	if err != nil {
+		return "", err
+	}
+	if i := bytes.Index(b, []byte("\n")); i >= 0 {
+		b = bytes.Trim(b[:i], " ")
+		return string(b), nil
+	}
+	return "", errors.New("release not found")
+}
+
+// IsContainerized returns true if we are running inside a container.
+func IsContainerized() (bool, error) {
+	if C.getzoneid() != 0 {
+		return true, nil
+	}
+	return false, nil
+}