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Results tagged with crack.c
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user 1090
2
votes
PSET2, crack.c Did this problem fall out of the sky from week 115? Am I overthinking this?
Crack is a 'more comfortable' problem, so it assumes that you have programming experience and that you have a knowledge of arrays, strings, loops, etc. If you don't consider yourself in the 'more com …
- 18.7k
1
vote
Accepted
Basic use of crypt in crack.c? (Hash "ROLF")
Unfortunately, there was a typo in the spec. The first example given was correct:
./crack 50fkUxYHbnXGw
rofl
but when repeated later in the spec, it showed ROFL in error.
This has been correc …
- 18.7k
0
votes
My crack code works for rofl but not for all
You don't appear to be handling passwords that are fewer than 4 chars.
edited to add example
You have 4 nested loops. Each one sets the value of the char but later chars in the string are not reset, …
- 18.7k
1
vote
Accepted
crack.c: error: implicit declaration of function 'crypt' is invalid in C99
The spec is perfectly correct. More than likely, you don't have
#define _XOPEN_SOURCE
#include <unistd.h>
At the very top of your program (ie, before any other #includes). If you move that to th …
- 18.7k
1
vote
Accepted
pset2 crack: Takes too long
Keep in mind that a "string" in C is simply a character array that is null terminated.
As such, your salt variable is not a string, nor is your temp variable in all cases.
As a consequence, when you …
- 18.7k