dragora/patches/inetutils/0038-ping6-Fix-memleak-in-ping_set_dest.patch

From 9ab7dff9279f8640752ffc640dd90ad1dcd19a2b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tim=20R=C3=BChsen?= <tim.ruehsen@gmx.de>
Date: Mon, 17 Feb 2020 21:40:22 +0100
Subject: [PATCH 38/60] ping6: Fix memleak in ping_set_dest

---
 ping/ping6.c | 18 +++++++++++-------
 ping/ping6.h |  2 +-
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/ping/ping6.c b/ping/ping6.c
index b0e0bf1f..8bc92a8f 100644
--- a/ping/ping6.c
+++ b/ping/ping6.c
@@ -998,7 +998,7 @@ ping_recv (PING * p)
 }
 
 static int
-ping_set_dest (PING * ping, char *host)
+ping_set_dest (PING * ping, const char *host)
 {
   int err;
   struct addrinfo *result, hints;
@@ -1008,8 +1008,9 @@ ping_set_dest (PING * ping, char *host)
   err = idna_to_ascii_lz (host, &rhost, 0);
   if (err)
     return 1;
+  host = rhost;
 #else /* !HAVE_IDN */
-  rhost = host;
+  rhost = NULL;
 #endif
 
   memset (&hints, 0, sizeof (hints));
@@ -1022,19 +1023,22 @@ ping_set_dest (PING * ping, char *host)
   hints.ai_flags |= AI_CANONIDN;
 #endif
 
-  err = getaddrinfo (rhost, NULL, &hints, &result);
+  err = getaddrinfo (host, NULL, &hints, &result);
   if (err)
-    return 1;
+    {
+      free (rhost);
+      return 1;
+    }
 
   memcpy (&ping->ping_dest.ping_sockaddr6, result->ai_addr, result->ai_addrlen);
 
   if (result->ai_canonname)
     ping->ping_hostname = strdup (result->ai_canonname);
   else
-    ping->ping_hostname = strdup (rhost);
-
 #if HAVE_IDN
-  free (rhost);
+    ping->ping_hostname = host;
+#else
+  ping->ping_hostname = strdup (host);
 #endif
   freeaddrinfo (result);
 
diff --git a/ping/ping6.h b/ping/ping6.h
index 76fc6b09..b15a407f 100644
--- a/ping/ping6.h
+++ b/ping/ping6.h
@@ -24,7 +24,7 @@
 #define USE_IPV6 1
 
 static PING *ping_init (int type, int ident);
-static int ping_set_dest (PING * ping, char *host);
+static int ping_set_dest (PING * ping, const char *host);
 static int ping_recv (PING * p);
 static int ping_xmit (PING * p);
 
-- 
2.26.0.292.g33ef6b2f38