From 401cb929543e3370726574c01fd90d965c5b3c60 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 12 Mar 2019 08:37:18 +0100
Subject: [PATCH] memdebug: log pointer before freeing its data

Coverity warned for two potentional "Use after free" cases. Both are false
positives because the memory wasn't used, it was only the actual pointer
value that was logged.

The fix still changes the order of execution to avoid the warnings.

Coverity CID 1443033 and 1443034

Closes #3671
---
 lib/curl_addrinfo.c | 4 ++--
 lib/memdebug.c      | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/curl_addrinfo.c b/lib/curl_addrinfo.c
index 961311fa3..16c4779c1 100644
--- a/lib/curl_addrinfo.c
+++ b/lib/curl_addrinfo.c
@@ -550,13 +550,13 @@ void
 curl_dbg_freeaddrinfo(struct addrinfo *freethis,
                       int line, const char *source)
 {
+  curl_dbg_log("ADDR %s:%d freeaddrinfo(%p)\n",
+               source, line, (void *)freethis);
 #ifdef USE_LWIPSOCK
   lwip_freeaddrinfo(freethis);
 #else
   (freeaddrinfo)(freethis);
 #endif
-  curl_dbg_log("ADDR %s:%d freeaddrinfo(%p)\n",
-               source, line, (void *)freethis);
 }
 #endif /* defined(CURLDEBUG) && defined(HAVE_FREEADDRINFO) */
 
diff --git a/lib/memdebug.c b/lib/memdebug.c
index 5fcddc4e1..e3ac8edf7 100644
--- a/lib/memdebug.c
+++ b/lib/memdebug.c
@@ -463,11 +463,11 @@ int curl_dbg_fclose(FILE *file, int line, const char *source)
 
   DEBUGASSERT(file != NULL);
 
-  res = fclose(file);
-
   if(source)
     curl_dbg_log("FILE %s:%d fclose(%p)\n",
-                source, line, (void *)file);
+                 source, line, (void *)file);
+
+  res = fclose(file);
 
   return res;
 }