From: Bram Moolenaar <Bram@vim.org>
Date: Sat, 14 Jan 2017 16:04:38 +0000 (+0100)
Subject: patch 8.0.0183: ubsan warns for unaligned address
X-Git-Tag: v8.0.0183
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7173b47958a238bb07f80b8f26fb232b0ea69b4a;p=vim

patch 8.0.0183: ubsan warns for unaligned address

Problem:    Ubsan warns for using a pointer that is not aligned.
Solution:   First copy the address. (Yegappan Lakshmanan)
---

diff --git a/src/channel.c b/src/channel.c
index f522e80c4..bd31bf3cb 100644
--- a/src/channel.c
+++ b/src/channel.c
@@ -710,7 +710,14 @@ channel_open(
 	channel_free(channel);
 	return NULL;
     }
-    memcpy((char *)&server.sin_addr, host->h_addr, host->h_length);
+    {
+	char		*p;
+
+	/* When using host->h_addr directly ubsan warns for it to not be
+	 * aligned.  First copy the pointer to aviod that. */
+	memcpy(&p, &host->h_addr, sizeof(p));
+	memcpy((char *)&server.sin_addr, p, host->h_length);
+    }
 
     /* On Mac and Solaris a zero timeout almost never works.  At least wait
      * one millisecond. Let's do it for all systems, because we don't know why
diff --git a/src/version.c b/src/version.c
index 806e86511..562757a72 100644
--- a/src/version.c
+++ b/src/version.c
@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    183,
 /**/
     182,
 /**/