ubuntuvm@ubuntuvm-VirtualBox:~/stack_overflow$ ./so hi
[BEFORE] buffer_two is at 0x7ffd58ef9440 and contains 'two'
[BEFORE] buffer_one is at 0x7ffd58ef9430 and contains 'one'
[BEFORE] value is at 0x7ffd58ef942c and is 5 (0x00000005)

[STRCPY] copying 2 bytes into buffer_two

[AFTER] buffer_two is at 0x7ffd58ef9440 and contains 'hi'
[AFTER] buffer_one is at 0x7ffd58ef9430 and contains 'one'
[AFTER] value is at 0x7ffd58ef942c and is 5 (0x00000005)
ubuntuvm@ubuntuvm-VirtualBox:~/stack_overflow$ ./so hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
[BEFORE] buffer_two is at 0x7ffd4247a830 and contains 'two'
[BEFORE] buffer_one is at 0x7ffd4247a820 and contains 'one'
[BEFORE] value is at 0x7ffd4247a81c and is 5 (0x00000005)

[STRCPY] copying 39 bytes into buffer_two

[AFTER] buffer_two is at 0x7ffd4247a830 and contains 'hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii'
[AFTER] buffer_one is at 0x7ffd4247a820 and contains 'one'
[AFTER] value is at 0x7ffd4247a81c and is 5 (0x00000005)
*** stack smashing detected ***: ./so terminated
Aborted (core dumped)