From 65bc5a2c045c38b35709964be614f5ceabc637ed Mon Sep 17 00:00:00 2001
From: "Hoa V. DINH" <dinh.viet.hoa@gmail.com>
Date: Fri, 24 Mar 2017 22:35:07 -0700
Subject: Fixed some crashes

---
 src/core/abstract/MCAddress.cpp |  6 +++++-
 src/core/imap/MCIMAPSession.cpp | 11 ++++++++---
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/core/abstract/MCAddress.cpp b/src/core/abstract/MCAddress.cpp
index 335bc68b..505b064e 100644
--- a/src/core/abstract/MCAddress.cpp
+++ b/src/core/abstract/MCAddress.cpp
@@ -175,7 +175,11 @@ Array * Address::addressesWithRFC822String(String * string)
     struct mailimf_address_list * addr_list;
     Array * result;
     int r;
-    
+
+    if (string == NULL) {
+        return NULL;
+    }
+
     utf8String = string->UTF8Characters();
     currentIndex = 0;
     
diff --git a/src/core/imap/MCIMAPSession.cpp b/src/core/imap/MCIMAPSession.cpp
index 4cfcfa95..4d23da60 100644
--- a/src/core/imap/MCIMAPSession.cpp
+++ b/src/core/imap/MCIMAPSession.cpp
@@ -644,11 +644,16 @@ void IMAPSession::connect(ErrorCode * pError)
     int r;
     
     setup();
-    
+
     MCLog("connect %s", MCUTF8DESC(this));
-    
+
     MCAssert(mState == STATE_DISCONNECTED);
-    
+
+    if (mHostname == NULL) {
+        * pError = ErrorConnection;
+        goto close;
+    }
+
     switch (mConnectionType) {
         case ConnectionTypeStartTLS:
         MCLog("STARTTLS connect");
-- 
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