Lab7

pa/lab7/07_call_functions.c

@@ -0,0 +1,24 @@
+// gcc -m32 -Wall -Wextra -ggdb -no-pie
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#define BUFFER_LEN 128
+
+void win() {
+    printf("You win!");
+    system("cat /home/ctf/flag");
+}
+
+void vuln() {
+    char buffer[BUFFER_LEN] = {0};
+    read(0, buffer, BUFFER_LEN-1);
+
+    printf(buffer);
+    puts("Bye!\n");
+}
+
+int main() {
+    vuln();
+}