sqlcmd specs and fixes

Author: Meatballs1

lib/msf/core/post/windows/mssql.rb

@@ -75,20 +75,16 @@ def get_sql_client
         #
         # @return [Boolean] true if osql is present
         def check_osql
-          running_services1 = run_cmd("osql -?")
-          services_array1 = running_services1.split("\n")
-          services_array1.join =~ /(SQL Server Command Line Tool)|(usage: osql)/i
+          result = run_cmd('osql -?')
+          result =~ /(SQL Server Command Line Tool)|(usage: osql)/i
         end
 
         # Attempts to run the sqlcmd command line tool
         #
         # @return [Boolean] true if sqlcmd is present
         def check_sqlcmd
-          running_services = run_cmd("sqlcmd -?")
-          services_array = running_services.split("\n")
-          services_array.each do |service|
-            return true if service =~ /SQL Server Command Line Tool/i
-          end
+          result = run_cmd('sqlcmd -?')
+          result =~ /SQL Server Command Line Tool/i
         end
 
         # Runs a SQL query using the identified command line tool

spec/lib/msf/core/post/windows/mssql_spec.rb

@@ -268,4 +268,64 @@
       end
     end
   end
+
+  describe "#run_cmd" do
+
+  end
+
+  let(:osql) do
+    'osql'
+  end
+
+  let(:sql_command) do
+    'sqlcmd'
+  end
+
+  describe "#check_osql" do
+    it "should return nil if no osql" do
+      expect(subject).to receive(:run_cmd).with('osql -?').and_return('blah')
+      subject.check_osql.should be_falsey
+    end
+
+    it "should return true if present" do
+      expect(subject).to receive(:run_cmd).with('osql -?').and_return('(usage: osql)')
+      subject.check_osql.should be_truthy
+    end
+  end
+
+  describe "#check_sqlcmd" do
+    it "should return nil if no sqlcmd" do
+      expect(subject).to receive(:run_cmd).and_return('blah')
+      subject.check_sqlcmd.should be_falsey
+    end
+
+    it "should return true if present" do
+      expect(subject).to receive(:run_cmd).and_return('SQL Server Command Line Tool')
+      subject.check_sqlcmd.should be_truthy
+    end
+
+  end
+
+  describe "#get_sql_client" do
+    it "should return nil if no client is available" do
+      expect(subject).to receive(:check_sqlcmd).and_return(false)
+      expect(subject).to receive(:check_osql).and_return(false)
+      subject.get_sql_client.should be_nil
+      subject.sql_client.should be_nil
+    end
+
+    it "should return 'osql' if osql is available" do
+      expect(subject).to receive(:check_sqlcmd).and_return(false)
+      expect(subject).to receive(:check_osql).and_return(true)
+      subject.get_sql_client.should eq osql
+      subject.sql_client.should eq osql
+    end
+
+    it "should return 'sqlcmd' if sqlcmd is available" do
+      allow(subject).to receive(:check_osql).and_return(true)
+      expect(subject).to receive(:check_sqlcmd).and_return(true)
+      subject.get_sql_client.should eq sql_command
+      subject.sql_client.should eq sql_command
+    end
+  end
 end