X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/18067c75fc8494ce7968776cd61a1693d20d8380..d4fd1b83a197d73cbac114fe53f3448d8b5c7cc2:/src/src/dkim.c

diff --git a/src/src/dkim.c b/src/src/dkim.c
index 396e5b905..9731a63d9 100644
--- a/src/src/dkim.c
+++ b/src/src/dkim.c
@@ -73,6 +73,9 @@ for (rr = dns_next_rr(&dnsa, &dnss, RESET_ANSWERS);
       if (answer_offset >= PDKIM_DNS_TXT_MAX_RECLEN)
 	return PDKIM_FAIL;	/*XXX better error detail?  logging? */
       }
+
+    /* check if this looks like a DKIM record */
+    if (strncasecmp(answer, "v=dkim", 6) != 0) continue;
     return PDKIM_OK;
     }
 
@@ -143,12 +146,12 @@ uschar * s;
 
 if (!sig) return;
 
-logmsg = string_catn(NULL, "DKIM: ", 6);
+logmsg = string_catn(NULL, US"DKIM: ", 6);
 if (!(s = sig->domain)) s = US"<UNSET>";
 logmsg = string_append(logmsg, 2, "d=", s);
 if (!(s = sig->selector)) s = US"<UNSET>";
 logmsg = string_append(logmsg, 2, " s=", s);
-logmsg = string_append(logmsg, 7, 
+logmsg = string_append(logmsg, 7,
 " c=", sig->canon_headers == PDKIM_CANON_SIMPLE ? "simple" : "relaxed",
 "/",   sig->canon_body    == PDKIM_CANON_SIMPLE ? "simple" : "relaxed",
 " a=", dkim_sig_to_a_tag(sig),
@@ -169,68 +172,69 @@ if (  !dkim_verify_status
   switch (sig->verify_status)
     {
     case PDKIM_VERIFY_NONE:
-      logmsg = string_cat(logmsg, " [not verified]");
+      logmsg = string_cat(logmsg, US" [not verified]");
       break;
 
     case PDKIM_VERIFY_INVALID:
-      logmsg = string_cat(logmsg, " [invalid - ");
+      logmsg = string_cat(logmsg, US" [invalid - ");
       switch (sig->verify_ext_status)
 	{
 	case PDKIM_VERIFY_INVALID_PUBKEY_UNAVAILABLE:
 	  logmsg = string_cat(logmsg,
-			"public key record (currently?) unavailable]");
+			US"public key record (currently?) unavailable]");
 	  break;
 
 	case PDKIM_VERIFY_INVALID_BUFFER_SIZE:
-	  logmsg = string_cat(logmsg, "overlong public key record]");
+	  logmsg = string_cat(logmsg, US"overlong public key record]");
 	  break;
 
 	case PDKIM_VERIFY_INVALID_PUBKEY_DNSRECORD:
 	case PDKIM_VERIFY_INVALID_PUBKEY_IMPORT:
-	  logmsg = string_cat(logmsg, "syntax error in public key record]");
+	  logmsg = string_cat(logmsg, US"syntax error in public key record]");
 	  break;
 
 	case PDKIM_VERIFY_INVALID_SIGNATURE_ERROR:
-	  logmsg = string_cat(logmsg, "signature tag missing or invalid]");
+	  logmsg = string_cat(logmsg, US"signature tag missing or invalid]");
 	  break;
 
 	case PDKIM_VERIFY_INVALID_DKIM_VERSION:
-	  logmsg = string_cat(logmsg, "unsupported DKIM version]");
+	  logmsg = string_cat(logmsg, US"unsupported DKIM version]");
 	  break;
 
 	default:
-	  logmsg = string_cat(logmsg, "unspecified problem]");
+	  logmsg = string_cat(logmsg, US"unspecified problem]");
 	}
       break;
 
     case PDKIM_VERIFY_FAIL:
-      logmsg = string_cat(logmsg, " [verification failed - ");
+      logmsg = string_cat(logmsg, US" [verification failed - ");
       switch (sig->verify_ext_status)
 	{
 	case PDKIM_VERIFY_FAIL_BODY:
 	  logmsg = string_cat(logmsg,
-		       "body hash mismatch (body probably modified in transit)]");
+	       US"body hash mismatch (body probably modified in transit)]");
 	  break;
 
 	case PDKIM_VERIFY_FAIL_MESSAGE:
 	  logmsg = string_cat(logmsg,
-		       "signature did not verify (headers probably modified in transit)]");
+		US"signature did not verify "
+		"(headers probably modified in transit)]");
 	break;
 
 	default:
-	  logmsg = string_cat(logmsg, "unspecified reason]");
+	  logmsg = string_cat(logmsg, US"unspecified reason]");
 	}
       break;
 
     case PDKIM_VERIFY_PASS:
-      logmsg = string_cat(logmsg, " [verification succeeded]");
+      logmsg = string_cat(logmsg, US" [verification succeeded]");
       break;
     }
 else
   logmsg = string_append(logmsg, 5,
 	    US" [", dkim_verify_status, US" - ", dkim_verify_reason, US"]");
 
-log_write(0, LOG_MAIN, string_from_gstring(logmsg));
+log_write(0, LOG_MAIN, "%s", string_from_gstring(logmsg));
 return;
 }
 
@@ -370,7 +374,7 @@ for (sig = dkim_signatures; sig; sig = sig->next)
 
     dkim_verify_status = dkim_exim_expand_query(DKIM_VERIFY_STATUS);
     dkim_verify_reason = dkim_exim_expand_query(DKIM_VERIFY_REASON);
-    
+
     if ((rc = dkim_acl_call(id, res_ptr, user_msgptr, log_msgptr)) != OK)
       return rc;
     }
@@ -684,7 +688,7 @@ while ((dkim_signing_domain = string_nextinlist(&dkim_domain, &sep, NULL, 0)))
 
     pdkim_set_optional(sig,
 			CS dkim_sign_headers_expanded,
-			dkim_identity_expanded,
+			CS dkim_identity_expanded,
 			pdkim_canon,
 			pdkim_canon, -1, 0, 0);