indent style issue

Hello,

            I am using indent program where in am using a specific style
and against that style am checking the difference between the two


For Eg:
indent -gnu test.c > temp
diff test.c tem

this gives me the difference.. So rather then giving  the difference i just
want to print that its not following the given style, is there  a command
for the same or can i make  changes to the code if so where should i do..


Regards,
Zinat Shaikh