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golem.c #include #include extern char **environ; main(int argc, char *argv[]) { char buffer[40]; int i; if(argc < 2){ printf("argv error\n"); exit(0); } if(argv[1][47] != '\xbf') { printf("stack is still your friend.\n"); exit(0); } strcpy(buffer, argv[1]); printf("%s\n", buffer); // stack destroyer! memset(buffer, 0, 44); memset(buffer+48, 0, 0xbfffffff - (int)(buffer+48)); } golem은 모든 버퍼를 다 비워..

skeleton.c #include #include extern char **environ; main(int argc, char *argv[]) { char buffer[40]; int i, saved_argc; if(argc 48){ printf("ar..