deps: upgrade to c-ares v1.16.0

Refs: https://github.com/c-ares/c-ares/releases/tag/cares-1_16_0

PR-URL: #32246
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>

deps/cares/cares.gyp

@@ -52,7 +52,9 @@
         'src/ares_fds.c',
         'src/ares_free_hostent.c',
         'src/ares_free_string.c',
+        'src/ares_freeaddrinfo.c',
         'src/ares_getenv.h',
+        'src/ares_getaddrinfo.c',
         'src/ares_gethostbyaddr.c',
         'src/ares_gethostbyname.c',
         'src/ares__get_hostent.c',
@@ -70,6 +72,7 @@
         'src/ares_nowarn.c',
         'src/ares_nowarn.h',
         'src/ares_options.c',
+        'src/ares__parse_into_addrinfo.c',
         'src/ares_parse_aaaa_reply.c',
         'src/ares_parse_a_reply.c',
         'src/ares_parse_mx_reply.c',
@@ -84,9 +87,11 @@
         'src/ares_process.c',
         'src/ares_query.c',
         'src/ares__read_line.c',
+        'src/ares__readaddrinfo.c',
         'src/ares_search.c',
         'src/ares_send.c',
         'src/ares_setup.h',
+        'src/ares__sortaddrinfo.c',
         'src/ares_strcasecmp.c',
         'src/ares_strcasecmp.h',
         'src/ares_strdup.c',

deps/cares/include/ares.h

@@ -135,6 +135,9 @@ extern "C" {
 /* More error codes */
 #define ARES_ECANCELLED         24          /* introduced in 1.7.0 */
 
+/* More ares_getaddrinfo error codes */
+#define ARES_ESERVICE           25          /* introduced in 1.?.0 */
+
 /* Flag values */
 #define ARES_FLAG_USEVC         (1 << 0)
 #define ARES_FLAG_PRIMARY       (1 << 1)
@@ -192,6 +195,8 @@ extern "C" {
 #define ARES_AI_V4MAPPED                (1 << 4)
 #define ARES_AI_ALL                     (1 << 5)
 #define ARES_AI_ADDRCONFIG              (1 << 6)
+#define ARES_AI_NOSORT                  (1 << 7)
+#define ARES_AI_ENVHOSTS                (1 << 8)
 /* Reserved for future use */
 #define ARES_AI_IDN                     (1 << 10)
 #define ARES_AI_IDN_ALLOW_UNASSIGNED    (1 << 11)
@@ -278,6 +283,8 @@ struct hostent;
 struct timeval;
 struct sockaddr;
 struct ares_channeldata;
+struct ares_addrinfo;
+struct ares_addrinfo_hints;
 
 typedef struct ares_channeldata *ares_channel;
 
@@ -306,6 +313,11 @@ typedef int  (*ares_sock_config_callback)(ares_socket_t socket_fd,
                                           int type,
                                           void *data);
 
+typedef void (*ares_addrinfo_callback)(void *arg,
+                                   int status,
+                                   int timeouts,
+                                   struct ares_addrinfo *res);
+
 CARES_EXTERN int ares_library_init(int flags);
 
 CARES_EXTERN int ares_library_init_mem(int flags,
@@ -369,6 +381,15 @@ CARES_EXTERN void ares_set_socket_configure_callback(ares_channel channel,
 CARES_EXTERN int ares_set_sortlist(ares_channel channel,
                                    const char *sortstr);
 
+CARES_EXTERN void ares_getaddrinfo(ares_channel channel,
+                                   const char* node,
+                                   const char* service,
+                                   const struct ares_addrinfo_hints* hints,
+                                   ares_addrinfo_callback callback,
+                                   void* arg);
+
+CARES_EXTERN void ares_freeaddrinfo(struct ares_addrinfo* ai);
+
 /*
  * Virtual function set to have user-managed socket IO.
  * Note that all functions need to be defined, and when
@@ -558,6 +579,44 @@ struct ares_soa_reply {
   unsigned int minttl;
 };
 
+/*
+ * Similar to addrinfo, but with extra ttl and missing canonname.
+ */
+struct ares_addrinfo_node {
+  int                        ai_ttl;
+  int                        ai_flags;
+  int                        ai_family;
+  int                        ai_socktype;
+  int                        ai_protocol;
+  ares_socklen_t             ai_addrlen;
+  struct sockaddr           *ai_addr;
+  struct ares_addrinfo_node *ai_next;
+};
+
+/*
+ * alias - label of the resource record.
+ * name - value (canonical name) of the resource record.
+ * See RFC2181 10.1.1. CNAME terminology.
+ */
+struct ares_addrinfo_cname {
+  int                         ttl;
+  char                       *alias;
+  char                       *name;
+  struct ares_addrinfo_cname *next;
+};
+
+struct ares_addrinfo {
+  struct ares_addrinfo_cname *cnames;
+  struct ares_addrinfo_node  *nodes;
+};
+
+struct ares_addrinfo_hints {
+  int ai_flags;
+  int ai_family;
+  int ai_socktype;
+  int ai_protocol;
+};
+
 /*
 ** Parse the buffer, starting at *abuf and of length alen bytes, previously
 ** obtained from an ares_search call.  Put the results in *host, if nonnull.

deps/cares/include/ares_version.h

@@ -3,15 +3,15 @@
 #define ARES__VERSION_H
 
 /* This is the global package copyright */
-#define ARES_COPYRIGHT "2004 - 2018 Daniel Stenberg, <daniel@haxx.se>."
+#define ARES_COPYRIGHT "2004 - 2020 Daniel Stenberg, <daniel@haxx.se>."
 
 #define ARES_VERSION_MAJOR 1
-#define ARES_VERSION_MINOR 15
+#define ARES_VERSION_MINOR 16
 #define ARES_VERSION_PATCH 0
 #define ARES_VERSION ((ARES_VERSION_MAJOR<<16)|\
                        (ARES_VERSION_MINOR<<8)|\
                        (ARES_VERSION_PATCH))
-#define ARES_VERSION_STR "1.15.0"
+#define ARES_VERSION_STR "1.16.0"
 
 #if (ARES_VERSION >= 0x010700)
 #  define CARES_HAVE_ARES_LIBRARY_INIT 1

deps/cares/src/README.md

@@ -2,9 +2,10 @@ c-ares
 ======
 
 [![Build Status](https://travis-ci.org/c-ares/c-ares.svg?branch=master)](https://travis-ci.org/c-ares/c-ares)
-[![Windows Build Status](https://ci.appveyor.com/api/projects/status/03i7151772eq3wn3/branch/master?svg=true)](https://ci.appveyor.com/project/c-ares/c-ares)
+[![Windows Build Status](https://ci.appveyor.com/api/projects/status/aevgc5914tm72pvs/branch/master?svg=true)](https://ci.appveyor.com/project/c-ares/c-ares/branch/master)
 [![Coverage Status](https://coveralls.io/repos/c-ares/c-ares/badge.svg?branch=master&service=github)](https://coveralls.io/github/c-ares/c-ares?branch=master)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/291/badge)](https://bestpractices.coreinfrastructure.org/projects/291)
+[![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/c-ares.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:c-ares)
 [![Releases](https://coderelease.io/badge/c-ares/c-ares)](https://coderelease.io/github/repository/c-ares/c-ares)
 
 This is c-ares, an asynchronous resolver library.  It is intended for

deps/cares/src/RELEASE-NOTES

@@ -1,43 +1,85 @@
-c-ares version 1.15.0
+c-ares version 1.16.0
 
 Changes:
- o Add ares_init_options() configurability for path to resolv.conf file [1]
- o Ability to exclude building of tools (adig, ahost, acountry) in CMake [3]
- o Android: Support for domain search suffix [4]
- o Report ARES_ENOTFOUND for .onion domain names as per RFC7686. [13]
+ o Introduction of ares_getaddrinfo() API which provides similar output
+   (including proper sorting as per RFC 6724) to the system native API, but
+   utilizes different data structures in order to provide additional information
+   such as TTLs and all aliases.  Please reference the respective man pages for
+   usage details. [3] [4] [5] [7] [8] [13] [14] [15] [16] [17] [22]
+ o Parse SOA records from ns_t_any response [29] [30]
+ o CMake: Provide c-ares version in package export file [24]
+ o CMake: Add CPACK functionality for DEB and RPM [28]
+ o CMake: Generate PDB files during build [33] [34]
+ o CMake: Support manpage installation [37] [38]
 
 Bug fixes:
- o AIX build fix for trying to include both nameser_compat.h and
-   onameser_compat.h [2]
- o Windows: Improve DNS suffixes extracting from WinNT registry [5]
- o Fix modern GCC warnings [6]
- o Apply the IPv6 server blacklist to all nameserver sources, not just Windows
-   [7]
- o Fix warnings emitted by MSVC when using -W4 [8]
- o Prevent changing name servers while queries are outstanding [9]
- o Harden and rationalize c-ares timeout computation [10]
- o Distribute ares_android.h [11]
- o ares_set_servers_csv() on failure should not leave channel in a bad state
-   [12]
- o Add missing docs to distribution
+ o Fix bad expectation in IPv6 localhost test. [1] [2]
+ o AutoTools: use XC_CHECK_BUILD_FLAGS instead of XC_CHECK_USER_FLAGS to prevent
+   complaints about CPPFLAGS in CFLAGS. [6]
+ o Fix .onion handling
+ o Command line usage was out of date for adig and ahost. [18]
+ o Typos in manpages [19] [20]
+ o If ares_getenv is defined, it must return a value on all platforms [21]
+ o If /etc/resolv.conf has invalid lookup values, use the defaults. [23]
+ o Tests: Separate live tests from SetServers* tests as only live tests should
+   require internet access. [25]
+ o ares_gethostbyname() should return ENODATA if no valid A or AAAA record is
+   found, but a CNAME was found. [26] [27]
+ o CMake: Rework library function checking to prevent unintended linking with
+   system libraries that aren't needed. [31] [32]
+ o Due to use of inet_addr() it was not possible to return 255.255.255.255 from
+   ares_gethostbyname(). [35] [36]
+ o CMake: Fix building of tests on Windows
 
 Thanks go to these friendly people for their efforts and contributions:
-  @afalin, Andi Schnebinger, Ben Noordhuis, Brad House, Brad Spencer,
-  David Hotham, @flyingdutchman23, John Schember, Ruslan Baratov,
-  Sarat Addepalli, Tobias Nießen (11 contributors)
+ Abhishek Arya (@inferno-chromium), Adam Majer (@AdamMajer),
+ Andrew Selivanov (@ki11roy), Ben Noordhuis (@bnoordhuis),
+ Brad House (@bradh352), Christian Ammer (@ChristianAmmer), Dan Noé (@dnoe),
+ Daniel Stenberg (@bagder), Darrin Cullop (@dwcullop),
+ Dron Rathore (@DronRathore), Fabrice Fontaine (@ffontaine),
+ Gregor Jasny (@gjasny), @kedixa, Khaidi Chu (@XadillaX),
+ Kyle Edwards (@KyleFromKitware), @lifenjoiner, Michal Rostecki (@mrostecki),
+ Peter Eisentraut (@petere), Piotr Pietraszkiewicz (@ppietrasa),
+ Stephen Bryant (@bf-bryants), @tjwalton, Vy Nguyen (@oontvoo)
+ (22 contributors)
 
 References to bug reports and discussions on issues:
- [1] = https://github.com/c-ares/c-ares/issues/220
- [2] = https://github.com/c-ares/c-ares/issues/224
- [3] = https://github.com/c-ares/c-ares/issues/200
- [4] = https://github.com/c-ares/c-ares/issues/207
- [5] = https://github.com/c-ares/c-ares/pull/202
- [6] = https://github.com/c-ares/c-ares/pull/201
- [7] = https://github.com/c-ares/c-ares/pull/193
- [8] = https://github.com/c-ares/c-ares/pull/192
- [9] = https://github.com/c-ares/c-ares/pull/191
+ [1] = https://github.com/c-ares/c-ares/pull/227
+ [2] = https://github.com/c-ares/c-ares/issues/85
+ [3] = https://github.com/c-ares/c-ares/pull/112
+ [4] = https://github.com/c-ares/c-ares/pull/233
+ [5] = https://github.com/c-ares/c-ares/pull/234
+ [6] = https://github.com/c-ares/c-ares/pull/236
+ [7] = https://github.com/c-ares/c-ares/pull/235
+ [8] = https://github.com/c-ares/c-ares/pull/239
+ [9] = https://github.com/c-ares/c-ares/pull/241
  [10] = https://github.com/c-ares/c-ares/pull/187
- [11] = https://c-ares.haxx.se/mail/c-ares-archive-2018-04/0000.shtml
- [12] = https://c-ares.haxx.se/mail/c-ares-archive-2018-03/0000.shtml
- [13] = https://github.com/c-ares/c-ares/issues/196
+ [11] = https://github.com/c-ares/c-ares/pull/252
+ [12] = https://github.com/c-ares/c-ares/issues/251
+ [13] = https://github.com/c-ares/c-ares/pull/258
+ [14] = https://github.com/c-ares/c-ares/pull/257
+ [15] = https://github.com/c-ares/c-ares/pull/262
+ [16] = https://github.com/c-ares/c-ares/pull/264
+ [17] = https://github.com/c-ares/c-ares/pull/265
+ [18] = https://github.com/c-ares/c-ares/pull/256
+ [19] = https://github.com/c-ares/c-ares/pull/269
+ [20] = https://github.com/c-ares/c-ares/pull/275
+ [21] = https://github.com/c-ares/c-ares/pull/279
+ [22] = https://github.com/c-ares/c-ares/pull/290
+ [23] = https://github.com/c-ares/c-ares/pull/274
+ [24] = https://github.com/c-ares/c-ares/pull/296
+ [25] = https://github.com/c-ares/c-ares/pull/299
+ [26] = https://github.com/c-ares/c-ares/pull/304
+ [27] = https://github.com/c-ares/c-ares/issues/303
+ [28] = https://github.com/c-ares/c-ares/pull/283
+ [29] = https://github.com/c-ares/c-ares/pull/103
+ [30] = https://github.com/c-ares/c-ares/issues/102
+ [31] = https://github.com/c-ares/c-ares/pull/310
+ [32] = https://github.com/c-ares/c-ares/issues/307
+ [33] = https://github.com/c-ares/c-ares/pull/311
+ [34] = https://github.com/c-ares/c-ares/issues/245
+ [35] = https://github.com/c-ares/c-ares/issues/309
+ [36] = https://github.com/c-ares/c-ares/pull/312
+ [37] = https://github.com/c-ares/c-ares/issues/297
+ [38] = https://github.com/c-ares/c-ares/pull/314
 

deps/cares/src/ares__close_sockets.c

@@ -48,14 +48,14 @@ void ares__close_sockets(ares_channel channel, struct server_state *server)
   if (server->tcp_socket != ARES_SOCKET_BAD)
     {
       SOCK_STATE_CALLBACK(channel, server->tcp_socket, 0, 0);
-      ares__socket_close(channel, server->tcp_socket);
+      ares__close_socket(channel, server->tcp_socket);
       server->tcp_socket = ARES_SOCKET_BAD;
       server->tcp_connection_generation = ++channel->tcp_connection_generation;
     }
   if (server->udp_socket != ARES_SOCKET_BAD)
     {
       SOCK_STATE_CALLBACK(channel, server->udp_socket, 0, 0);
-      ares__socket_close(channel, server->udp_socket);
+      ares__close_socket(channel, server->udp_socket);
       server->udp_socket = ARES_SOCKET_BAD;
     }
 }

deps/cares/src/ares__get_hostent.c

@@ -138,8 +138,7 @@ int ares__get_hostent(FILE *fp, int family, struct hostent **host)
       addr.addrV4.s_addr = INADDR_NONE;
       if ((family == AF_INET) || (family == AF_UNSPEC))
         {
-          addr.addrV4.s_addr = inet_addr(txtaddr);
-          if (addr.addrV4.s_addr != INADDR_NONE)
+          if (ares_inet_pton(AF_INET, txtaddr, &addr.addrV4) > 0)
             {
               /* Actual network address family and length. */
               addr.family = AF_INET;