Lab7

pa/lab7/06_write_big_number.c

@@ -0,0 +1,29 @@
+// gcc -m32 -Wall -Wextra -ggdb -no-pie
+
+#include <stdio.h>
+#include <unistd.h>
+#include "get_flag.h"
+
+#define BUFFER_LEN 128
+
+unsigned int target_before = 0;
+unsigned int target = 0;
+unsigned int target_after = 0;
+
+void vuln() {
+    char buffer[BUFFER_LEN] = {0};
+    read(0, buffer, BUFFER_LEN-1);
+
+    printf(buffer);
+
+    if (target == 0xdeadbeef) {
+        printf("Success! You hit the target!\n");
+        printf("Here is your flag: %s\n", get_flag());
+    } else {
+        printf("Oops, not quite! The target was: 0xdeadbeef\nCurrent value is 0x%08x\n", target);
+    }
+}
+
+int main() {
+    vuln();
+}