[Dreamhack] Cherry write up
오랜만에 포너블 워게임 #include #include #include #include #include #include void alarm_handler() { puts("TIME OUT"); exit(-1); } void initialize() { setvbuf(stdin, NULL, _IONBF, 0); setvbuf(stdout, NULL, _IONBF, 0); signal(SIGALRM, alarm_handler); alarm(30); } void flag() { char *cmd = "/bin/sh"; char *args[] = {cmd, NULL}; execve(cmd, args, NULL); } int main(int argc, char *argv[]) { int stdin_fd = 0; i..