Lab6

pa/lab6/check.c

@@ -0,0 +1,30 @@
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include "general.h"
+
+int check_password(char* password) {
+  char buffer[32];
+
+  strcpy(buffer, password);
+
+  if(strcmp(buffer, getflag()) == 0)
+    return 1;
+
+  return 0;
+}
+
+int main() {
+  init();
+
+  char pass[64] = {0};
+  // we know how to make this secure. No gets in here.
+  read(0, pass, 63);
+
+  if(check_password(pass)){
+      printf("Welcome back! Here is the secret flag that you already knew: %s\n", getflag());
+  } else {
+      printf("Unauthorized user/passwd\n");
+  }
+}