# HG changeset patch
# User Pali Rohár <pali.rohar@gmail.com>
# Date 1465134495 -7200
# Node ID 91278ef69de74a5cdcb1fa27d6a981d54f7295f9
# Parent  528bd5a67923a2ca72c7e99ca07e6eb88259d19f
lib-mail: message_address_write: Fix generating group list with empty name

Empty name for group list must be quoted.

Test case:

  { { name = NULL, mailbox = "", domain = NULL }, { name = NULL, mailbox = NULL, domain = NULL } }

converts to:

  "":;

diff -r 528bd5a67923 -r 91278ef69de7 src/lib-mail/message-address.c
--- a/src/lib-mail/message-address.c	Sun Jun 05 15:48:14 2016 +0200
+++ b/src/lib-mail/message-address.c	Sun Jun 05 15:48:15 2016 +0200
@@ -358,8 +358,12 @@
 			if (!in_group) {
 				/* beginning of group. mailbox is the group
 				   name, others are NULL. */
-				if (addr->mailbox != NULL)
+				if (addr->mailbox != NULL && *addr->mailbox != '\0') {
 					str_append(str, addr->mailbox);
+				} else {
+					/* empty group name needs to be quoted */
+					str_append(str, "\"\"");
+				}
 				str_append(str, ": ");
 				first = TRUE;
 			} else {