ahhyun98 님의 블로그

Source code#include #include #include #include int main(int argc, char **argv){ volatile int modified; char buffer[64]; if(argc == 1) { errx(1, "please specify an argument\n"); } modified = 0; strcpy(buffer, argv[1]); if(modified == 0x61626364) { printf("you have correctly got the variable to the right value\n"); } else { printf("Try again, you got 0x%08x\n", modified); }..

Source code#include #include #include int main(int argc, char **argv){ volatile int modified; char buffer[64]; modified = 0; gets(buffer); if(modified != 0) { printf("you have changed the 'modified' variable\n"); } else { printf("Try again?\n"); }} : sub $0x60,%esp96바이트만큼의 스택 공간을 확보한다. : movl $0x0,0x5c(%esp)esp+0x5c 위치에 0 저장 => 소스코드에서 보면 modified =0으로 초기화 modified : [esp+0x5..