Want C program for this please.

I need the code for this... plz help me out... Search c keyword;
1) The program will ask user to enter a file name (a C source file )
2) software will open file and search C language keywords in file
3) it will print keywords and their count after traversing through whole file in following format;

IF 1o
WHILE 7
INT 4
FLOAT 5

The program should also write above printed data into a file having following name

Filename _result.
Points to consider;

1) You have to make functions
2) Always pas parameters to function using pointers
3) File handling is must to read and write files
4) Comments in program