Intermediate changes

1 files changed, 90 insertions, 0 deletions

diff --git a/contrib/libs/c-ares/src/lib/ares_parse_a_reply.c b/contrib/libs/c-ares/src/lib/ares_parse_a_reply.c
new file mode 100644
index 0000000000..ee903c7510
--- /dev/null
+++ b/contrib/libs/c-ares/src/lib/ares_parse_a_reply.c
@@ -0,0 +1,90 @@
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ * Copyright (C) 2019 by Andrew Selivanov
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_NETINET_IN_H
+#  include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+#  include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#  include <arpa/inet.h>
+#endif
+
+#include "ares_nameser.h"
+
+#ifdef HAVE_STRINGS_H
+#  include <strings.h>
+#endif
+
+#ifdef HAVE_LIMITS_H
+#  include <limits.h>
+#endif
+
+#include "ares.h"
+#include "ares_dns.h"
+#include "ares_private.h"
+
+int ares_parse_a_reply(const unsigned char *abuf, int alen,
+                       struct hostent **host, struct ares_addrttl *addrttls,
+                       int *naddrttls)
+{
+  struct ares_addrinfo ai;
+  char *question_hostname = NULL;
+  int status;
+  int req_naddrttls = 0;
+
+  if (naddrttls)
+    {
+      req_naddrttls = *naddrttls;
+      *naddrttls = 0;
+    }
+
+  memset(&ai, 0, sizeof(ai));
+
+  status = ares__parse_into_addrinfo(abuf, alen, 0, 0, &ai);
+  if (status != ARES_SUCCESS && status != ARES_ENODATA)
+    {
+      goto fail;
+    }
+
+  if (host != NULL)
+    {
+      status = ares__addrinfo2hostent(&ai, AF_INET, host);
+      if (status != ARES_SUCCESS && status != ARES_ENODATA)
+        {
+          goto fail;
+        }
+    }
+
+  if (addrttls != NULL && req_naddrttls)
+   {
+     ares__addrinfo2addrttl(&ai, AF_INET, req_naddrttls, addrttls,
+                            NULL, naddrttls);
+   }
+
+
+fail:
+  ares__freeaddrinfo_cnames(ai.cnames);
+  ares__freeaddrinfo_nodes(ai.nodes);
+  ares_free(ai.name);
+  ares_free(question_hostname);
+
+  return status;
+}