[PATCH v1] pool: Fix a potential NULL pointer de-reference in test code

From: Frank Lichtenheld <[email protected]>

Identified by cppcheck. Probably has been a long time
since that code has been compiled, though.

Change-Id: I09ebbf6f3555dd68ce8d75bfa844ecac518a0cf2
Signed-off-by: Frank Lichtenheld <[email protected]>
Acked-by: Gert Doering <[email protected]>
Gerrit URL: https://gerrit.openvpn.net/c/openvpn/+/1676
---

This change was reviewed on Gerrit and approved by at least one
developer. I request to merge it to master.

Gerrit URL: https://gerrit.openvpn.net/c/openvpn/+/1676
This mail reflects revision 1 of this Change.

Acked-by according to Gerrit (reflected above):
Gert Doering <[email protected]>

        
diff --git a/src/openvpn/pool.c b/src/openvpn/pool.c
index 15004c0..ff74e7c 100644
--- a/src/openvpn/pool.c
+++ b/src/openvpn/pool.c
@@ -757,7 +757,7 @@
             break;
         }
         msg(M_INFO | M_NOPREFIX, "IFCONFIG_POOL TEST pass 1: l=%s r=%s cn=%s",
-            print_in_addr_t(local, 0, &gc), print_in_addr_t(remote, 0, &gc), cn);
+            print_in_addr_t(local, 0, &gc), print_in_addr_t(remote, 0, &gc), cn ? cn : "[NULL]");
         array[i] = h;
     }
 
@@ -793,7 +793,7 @@
             break;
         }
         msg(M_INFO | M_NOPREFIX, "IFCONFIG_POOL TEST pass 3: l=%s r=%s cn=%s",
-            print_in_addr_t(local, 0, &gc), print_in_addr_t(remote, 0, &gc), cn);
+            print_in_addr_t(local, 0, &gc), print_in_addr_t(remote, 0, &gc), cn ? cn : "[NULL]");
         array[i] = h;
     }