보호되어 있는 글입니다.

// gcc -o tcache_dup tcache_dup.c -no-pie #include #include #include #include char *ptr[10]; void alarm_handler() { exit(-1); } void initialize() { setvbuf(stdin, NULL, _IONBF, 0); setvbuf(stdout, NULL, _IONBF, 0); signal(SIGALRM, alarm_handler); alarm(60); } int create(int cnt) { int size; if(cnt > 10) { return -1; } printf("Size: "); scanf("%d", &size); ptr[cnt] = malloc(size); if(!ptr[cnt]) {..

// Name: tcache_poison.c // Compile: gcc -o tcache_poison tcache_poison.c -no-pie -Wl,-z,relro,-z,now #include #include #include int main() { void *chunk = NULL; unsigned int size; int idx; setvbuf(stdin, 0, 2, 0); setvbuf(stdout, 0, 2, 0); while (1) { printf("1. Allocate\n"); printf("2. Free\n"); printf("3. Print\n"); printf("4. Edit\n"); scanf("%d", &idx); switch (idx) { case 1: printf("Size: ..