NDH 2k10 public wargame, level4

/***********************************
|            level4.c              |
|  http://wargame.nuitduhack.com/  |
|  http://www.nuitduhack.com/      |
***********************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

// gcc -o level4 level4.c -fno-stack-protector -z execstack -mpreferred-stack-boundary=2

int checkIdent(char *login, char *pwd)
{
    char buffer[8] = {'\0'};
    int i;

    strcpy(buffer, login);
    buffer[strlen("guest1")] = '\0';

    if(strcmp(buffer, "guest1"))
        return 0;

    strcpy(buffer, pwd);
    buffer[strlen("guest1")] = '\0';

    if(strcmp(buffer, "guest1"))
        return 0;

    return 1;
}

int main(int argc, char *argv[])
{
    if(argc != 3) {
        printf("%s <login> <pass>\n", argv[0]);
        exit(-1);
    }

    if(checkIdent(argv[1], argv[2])) {
        printf("Logged :)\n");
        exit(1);
    }

    printf("Oh noes\n");
    return 0;
}