changed repo structure

2025/cscg/pwn/intro2/intro-fmt.c

@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+// --------------------------------------------------- SETUP
+
+void ignore_me_init_buffering() {
+  setvbuf(stdin, NULL, _IONBF, 0);
+  setvbuf(stdout, NULL, _IONBF, 0);
+  setvbuf(stderr, NULL, _IONBF, 0);
+}
+
+// --------------------------------------------------- VULNERABLE FUNCTION
+
+int bug = 0;
+void vuln() {
+  char name[1024];
+  printf("What is your name?\n");
+  int number_read = read(STDIN_FILENO, name, sizeof(name) - 1);
+  name[number_read - 1] = 0;
+  printf("Thank you ");
+  printf(name);
+  printf("!\n");
+  if (bug) {
+    printf("Oh, you got here somehow, you must have triggered a bug.. Here is "
+           "the flag: ");
+    system("cat /flag");
+    exit(0);
+  }
+  printf("But our flag is in another branch!\n");
+}
+
+// --------------------------------------------------- MAIN
+
+int main(int argc, char **argv) {
+  (void)argc;
+  (void)argv;
+  ignore_me_init_buffering();
+
+  vuln();
+}