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test thoi đừng merge #1

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46 changes: 46 additions & 0 deletions Challenge Test/test.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,46 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int fuzz(char *);

int main(int argc, char **argv) {
printf("Let's see if you passed the right flag...\n");
if (argc == 2)
if (strlen(*(argv + 1)) == 32)
if (!fuzz(*(argv + 1)))
printf("Wrong Direction.");
else if (!strncmp(*(argv + 1), "302753d5b52596eb75b8", 0x14))
if (!strncmp(*(argv + 1) + 20, "9c11cc30e5c7", 12))
printf("True.");
else
printf("Try again.");
else
printf("Try again.");
else
printf("Try again.");
else
printf("Try again.");
}

int fuzz(char *key) {
char char1[10], char2[10], char3[10], char4[10];
memset(char1, 0, 10);
memset(char2, 0, 10);
memset(char3, 0, 10);
memset(char4, 0, 10);

strncpy(char1, key, 8);
strncpy(char2, key + 8, 8);
strncpy(char3, key + 16, 8);
strncpy(char4, key + 24, 8);

memset(key, 0, 32);

strcat(key, char3);
strcat(key, char1);
strcat(key, char4);
strcat(key, char2);

return 1;
}