#include "cache.h"
+#include "config.h"
 #include "run-command.h"
 #include "strbuf.h"
 #include "gpg-interface.h"
 
 void signature_check_clear(struct signature_check *sigc)
 {
-       free(sigc->payload);
-       free(sigc->gpg_output);
-       free(sigc->gpg_status);
-       free(sigc->signer);
-       free(sigc->key);
-       sigc->payload = NULL;
-       sigc->gpg_output = NULL;
-       sigc->gpg_status = NULL;
-       sigc->signer = NULL;
-       sigc->key = NULL;
+       FREE_AND_NULL(sigc->payload);
+       FREE_AND_NULL(sigc->gpg_output);
+       FREE_AND_NULL(sigc->gpg_status);
+       FREE_AND_NULL(sigc->signer);
+       FREE_AND_NULL(sigc->key);
 }
 
 static struct {
        { 'B', "\n[GNUPG:] BADSIG " },
        { 'U', "\n[GNUPG:] TRUST_NEVER" },
        { 'U', "\n[GNUPG:] TRUST_UNDEFINED" },
+       { 'E', "\n[GNUPG:] ERRSIG "},
+       { 'X', "\n[GNUPG:] EXPSIG "},
+       { 'Y', "\n[GNUPG:] EXPKEYSIG "},
+       { 'R', "\n[GNUPG:] REVKEYSIG "},
 };
 
 void parse_gpg_output(struct signature_check *sigc)
                /* The trust messages are not followed by key/signer information */
                if (sigc->result != 'U') {
                        sigc->key = xmemdupz(found, 16);
-                       found += 17;
-                       next = strchrnul(found, '\n');
-                       sigc->signer = xmemdupz(found, next - found);
+                       /* The ERRSIG message is not followed by signer information */
+                       if (sigc-> result != 'E') {
+                               found += 17;
+                               next = strchrnul(found, '\n');
+                               sigc->signer = xmemdupz(found, next - found);
+                       }
                }
        }
 }