/*

* 栈溢出问题,用来学习gdb

*/

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int check_authentication(char *password) {

int auth_flag = 0;

char password_buffer[16];

strcpy(password_buffer, password);

if(strcmp(password_buffer, "Sn0rt") == 0)

auth_flag = 1;

if(strcmp(password_buffer, "Snort") == 0)

auth_flag = 1;

return auth_flag;

}

int main(int argc, char *argv[]) {

if(argc < 2) {

printf("Usage: %s <password>\n", argv[0]);

exit(0);

}

if(check_authentication(argv[1])) {

printf("\n-=-=-=-=-=-=-=-=-=-=-=-=-=-\n");

printf(" Access Granted.\n");

printf("-=-=-=-=-=-=-=-=-=-=-=-=-=-\n");

} else {

printf("\nAccess Denied.\n");

}

}