Create strcpy_example2.c

buffer_overflow_example/strcpy_example2.c

@@ -0,0 +1,32 @@
+#include <stdio.h> 
+#include <string.h> 
+#include <stdlib.h> 
+  
+int main(int argc, char *argv[]) 
+{ 
+  
+       // Reserve 5 byte of buffer plus the terminating NULL. 
+       // should allocate 8 bytes = 2 double words, 
+       // To overflow, need more than 8 bytes... 
+       char buffer[5];  // If more than 8 characters input 
+                        // by user, there will be access  
+                        // violation, segmentation fault 
+  
+       // a prompt how to execute the program... 
+       if (argc < 2) 
+       { 
+              printf("strcpy() NOT executed....\n"); 
+              printf("Syntax: %s <characters>\n", argv[0]); 
+              exit(0); 
+       } 
+  
+       // copy the user input to mybuffer, without any 
+       // bound checking a secure version is srtcpy_s() 
+       strcpy(buffer, argv[1]); 
+       printf("buffer content= %s\n", buffer); 
+  
+       // you may want to try strcpy_s() 
+       printf("strcpy() executed...\n"); 
+  
+       return 0; 
+}