more ctf stuff

training/h4tum/binex_training/cscg_2024_intro_pwn/pwn1.c

@@ -0,0 +1,68 @@
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+// pwn1: gcc pwn1.c -o pwn1
+
+// --------------------------------------------------- SETUP
+
+void ignore_me_init_buffering() {
+  setvbuf(stdout, NULL, _IONBF, 0);
+  setvbuf(stdin, NULL, _IONBF, 0);
+  setvbuf(stderr, NULL, _IONBF, 0);
+}
+
+void kill_on_timeout(int sig) {
+  if (sig == SIGALRM) {
+    printf("[!] Anti DoS Signal. Patch me out for testing.");
+    _exit(0);
+  }
+}
+
+void ignore_me_init_signal() {
+  signal(SIGALRM, kill_on_timeout);
+  alarm(60);
+}
+
+// --------------------------------------------------- MENU
+
+void WINgardium_leviosa() {
+  printf("┌───────────────────────┐\n");
+  printf("│ You are a Slytherin.. │\n");
+  printf("└───────────────────────┘\n");
+  system("/bin/sh");
+}
+
+void welcome() {
+  char read_buf[0xff];
+  printf("Enter your witch name:\n");
+  gets(read_buf);
+  printf("┌───────────────────────┐\n");
+  printf("│ You are a Hufflepuff! │\n");
+  printf("└───────────────────────┘\n");
+  printf(read_buf);
+}
+
+void AAAAAAAA() {
+  char read_buf[0xff];
+
+  printf(" enter your magic spell:\n");
+  gets(read_buf);
+  if (strcmp(read_buf, "Expelliarmus") == 0) {
+    printf("~ Protego!\n");
+  } else {
+    printf("-10 Points for Hufflepuff!\n");
+    _exit(0);
+  }
+}
+// --------------------------------------------------- MAIN
+
+void main(int argc, char *argv[]) {
+  ignore_me_init_buffering();
+  ignore_me_init_signal();
+
+  welcome();
+  AAAAAAAA();
+}