deps: sync with upstream c-ares/c-ares@bba4dc5

Fixes: #1676
PR-URL: #1678
Reviewed-By: Fedor Indutny <fedor@indutny.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>

deps/cares/cares.gyp

@@ -26,7 +26,6 @@
       'direct_dependent_settings': {
         'include_dirs': [ 'include' ]
       },
-      'defines': [ 'HAVE_CONFIG_H' ],
       'sources': [
         'common.gypi',
         'include/ares.h',
@@ -96,7 +95,6 @@
         'src/inet_ntop.c',
         'src/ares_inet_net_pton.h',
         'src/setup_once.h',
-        'src/windows_port.c'
       ],
       'conditions': [
         [ 'library=="static_library"', {
@@ -107,7 +105,7 @@
         [ 'OS=="win"', {
           'include_dirs': [ 'config/win32' ],
           'sources': [
-            'config/win32/ares_config.h',
+            'src/config-win32.h',
             'src/windows_port.c',
             'src/ares_getenv.c',
             'src/ares_iphlpapi.h',
@@ -126,6 +124,7 @@
             '-Wextra',
             '-Wno-unused-parameter'
           ],
+          'defines': [ 'HAVE_CONFIG_H' ],
         }],
         [ 'OS not in "win android"', {
           'cflags': [

deps/cares/include/ares.h

@@ -29,55 +29,8 @@
 #  define WIN32
 #endif
 
-/*************************** libuv patch ***************/
-
-/*
- * We want to avoid autoconf altogether since there are a finite number of
- * operating systems and simply build c-ares. Therefore we do not want the
- * configurations provided by ares_build.h since we are always statically
- * linking c-ares into libuv. Having a system dependent ares_build.h forces
- * all users of ares.h to include the correct ares_build.h.  We do not care
- * about the linking checks provided by ares_rules.h. This would complicate
- * the libuv build process.
- */
-
-
-#if defined(WIN32)
-/* Configure process defines this to 1 when it finds out that system  */
-/* header file ws2tcpip.h must be included by the external interface. */
-/* #undef CARES_PULL_WS2TCPIP_H */
-# include <winsock2.h>
-# include <ws2tcpip.h>
-# include <windows.h>
-
-#else /* Not Windows */
-
-# include <sys/time.h>
-# include <sys/types.h>
-# include <sys/socket.h>
-#endif
-
-#if 0
-/* The size of `long', as computed by sizeof. */
-#define CARES_SIZEOF_LONG 4
-#endif
-
-/* Integral data type used for ares_socklen_t. */
-#define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
-
-#if 0
-/* The size of `ares_socklen_t', as computed by sizeof. */
-#define CARES_SIZEOF_ARES_SOCKLEN_T 4
-#endif
-
 /* Data type definition of ares_socklen_t. */
-typedef int ares_socklen_t;
-
-#if 0 /* libuv disabled */
-#include "ares_rules.h"    /* c-ares rules enforcement */
-#endif
-
-/*********************** end libuv patch ***************/
+typedef unsigned ares_socklen_t;
 
 #include <sys/types.h>
 
@@ -520,8 +473,6 @@ struct ares_txt_reply {
   struct ares_txt_reply  *next;
   unsigned char          *txt;
   size_t                  length;  /* length excludes null termination */
-  unsigned char           record_start;  /* 1 - if start of new record
-                                          * 0 - if a chunk in the same record */
 };
 
 struct ares_naptr_reply {

deps/cares/include/ares_version.h

@@ -7,11 +7,11 @@
 
 #define ARES_VERSION_MAJOR 1
 #define ARES_VERSION_MINOR 10
-#define ARES_VERSION_PATCH 0
+#define ARES_VERSION_PATCH 1
 #define ARES_VERSION ((ARES_VERSION_MAJOR<<16)|\
                        (ARES_VERSION_MINOR<<8)|\
                        (ARES_VERSION_PATCH))
-#define ARES_VERSION_STR "1.10.0-DEV"
+#define ARES_VERSION_STR "1.10.1-DEV"
 
 #if (ARES_VERSION >= 0x010700)
 #  define CARES_HAVE_ARES_LIBRARY_INIT 1

deps/cares/src/ares__read_line.c

@@ -61,7 +61,10 @@ int ares__read_line(FILE *fp, char **buf, size_t *bufsize)
       /* Allocate more space. */
       newbuf = realloc(*buf, *bufsize * 2);
       if (!newbuf)
-        return ARES_ENOMEM;
+        {
+          free(*buf);
+          return ARES_ENOMEM;
+        }
       *buf = newbuf;
       *bufsize *= 2;
     }

deps/cares/src/ares_gethostbyname.c

@@ -188,8 +188,9 @@ static void host_callback(void *arg, int status, int timeouts,
       else if (hquery->sent_family == AF_INET6)
         {
           status = ares_parse_aaaa_reply(abuf, alen, &host, NULL, NULL);
-          if ((status == ARES_ENODATA || status == ARES_EBADRESP) &&
-               hquery->want_family == AF_UNSPEC) {
+          if ((status == ARES_ENODATA || status == ARES_EBADRESP ||
+               (status == ARES_SUCCESS && host && host->h_addr_list[0] == NULL)) &&
+                hquery->want_family == AF_UNSPEC) {
             /* The query returned something but either there were no AAAA
                records (e.g. just CNAME) or the response was malformed.  Try
                looking up A instead. */

deps/cares/src/ares_getnameinfo.c

@@ -281,6 +281,8 @@ static char *lookup_service(unsigned short port, int flags,
   struct servent se;
 #endif
   char tmpbuf[4096];
+  char *name;
+  size_t name_len;
 
   if (port)
     {
@@ -323,14 +325,20 @@ static char *lookup_service(unsigned short port, int flags,
 #endif
         }
       if (sep && sep->s_name)
-        /* get service name */
-        strcpy(tmpbuf, sep->s_name);
+        {
+          /* get service name */
+          name = sep->s_name;
+        }
       else
-        /* get port as a string */
-        sprintf(tmpbuf, "%u", (unsigned int)ntohs(port));
-      if (strlen(tmpbuf) < buflen)
+        {
+          /* get port as a string */
+          sprintf(tmpbuf, "%u", (unsigned int)ntohs(port));
+          name = tmpbuf;
+        }
+      name_len = strlen(name);
+      if (name_len < buflen)
         /* return it if buffer big enough */
-        strcpy(buf, tmpbuf);
+        memcpy(buf, name, name_len + 1);
       else
         /* avoid reusing previous one */
         buf[0] = '\0';

deps/cares/src/ares_getsock.c

@@ -30,17 +30,15 @@ int ares_getsock(ares_channel channel,
   /* Are there any active queries? */
   int active_queries = !ares__is_list_empty(&(channel->all_queries));
 
-  for (i = 0;
-       (i < channel->nservers) && (sockindex < ARES_GETSOCK_MAXNUM);
-       i++)
+  for (i = 0; i < channel->nservers; i++)
     {
       server = &channel->servers[i];
       /* We only need to register interest in UDP sockets if we have
        * outstanding queries.
        */
       if (active_queries && server->udp_socket != ARES_SOCKET_BAD)
         {
-          if(sockindex >= numsocks)
+          if(sockindex >= numsocks || sockindex >= ARES_GETSOCK_MAXNUM)
             break;
           socks[sockindex] = server->udp_socket;
           bitmap |= ARES_GETSOCK_READABLE(setbits, sockindex);
@@ -52,7 +50,7 @@ int ares_getsock(ares_channel channel,
        */
       if (server->tcp_socket != ARES_SOCKET_BAD)
        {
-         if(sockindex >= numsocks)
+         if(sockindex >= numsocks || sockindex >= ARES_GETSOCK_MAXNUM)
            break;
          socks[sockindex] = server->tcp_socket;
          bitmap |= ARES_GETSOCK_READABLE(setbits, sockindex);

deps/cares/src/ares_init.c

@@ -266,7 +266,10 @@ int ares_dup(ares_channel *dest, ares_channel src)
      which is most of them */
   rc = ares_save_options(src, &opts, &optmask);
   if(rc)
+  {
+    ares_destroy_options(&opts);
     return rc;
+  }
 
   /* Then create the new channel with those options */
   rc = ares_init_options(dest, &opts, optmask);
@@ -1158,20 +1161,24 @@ static int init_by_resolv_conf(ares_channel channel)
     FILE *fp;
     size_t linesize;
     int error;
+    int update_domains;
 
     /* Don't read resolv.conf and friends if we don't have to */
     if (ARES_CONFIG_CHECK(channel))
         return ARES_SUCCESS;
 
+    /* Only update search domains if they're not already specified */
+    update_domains = (channel->ndomains == -1);
+
     fp = fopen(PATH_RESOLV_CONF, "r");
     if (fp) {
       while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
       {
-        if ((p = try_config(line, "domain", ';')))
+        if ((p = try_config(line, "domain", ';')) && update_domains)
           status = config_domain(channel, p);
         else if ((p = try_config(line, "lookup", ';')) && !channel->lookups)
           status = config_lookup(channel, p, "bind", "file");
-        else if ((p = try_config(line, "search", ';')))
+        else if ((p = try_config(line, "search", ';')) && update_domains)
           status = set_search(channel, p);
         else if ((p = try_config(line, "nameserver", ';')) &&
                  channel->nservers == -1)
@@ -1410,7 +1417,7 @@ static int init_by_defaults(ares_channel channel)
         goto error;
       }
 
-    } WHILE_FALSE;
+    } while (res != 0);
 
     dot = strchr(hostname, '.');
     if (dot) {

deps/cares/src/ares_ipv6.h

@@ -71,7 +71,7 @@ struct addrinfo
 #endif
 #endif
 
-/* Defined in ares_net_pton.c for no particular reason. */
+/* Defined in inet_net_pton.c for no particular reason. */
 extern const struct ares_in6_addr ares_in6addr_any; /* :: */
 
 

deps/cares/src/ares_library_init.c

@@ -45,7 +45,7 @@ static int ares_win32_init(void)
 #ifdef USE_WINSOCK
 
   hnd_iphlpapi = 0;
-  hnd_iphlpapi = LoadLibraryW(L"iphlpapi.dll");
+  hnd_iphlpapi = LoadLibrary("iphlpapi.dll");
   if (!hnd_iphlpapi)
     return ARES_ELOADIPHLPAPI;
 
@@ -73,7 +73,7 @@ static int ares_win32_init(void)
    */
 
   hnd_advapi32 = 0;
-  hnd_advapi32 = LoadLibraryW(L"advapi32.dll");
+  hnd_advapi32 = LoadLibrary("advapi32.dll");
   if (hnd_advapi32)
     {
       ares_fpSystemFunction036 = (fpSystemFunction036_t)

deps/cares/src/ares_nowarn.c

@@ -1,5 +1,5 @@
 
-/* Copyright (C) 2010-2012 by Daniel Stenberg
+/* Copyright (C) 2010-2013 by Daniel Stenberg
  *
  * Permission to use, copy, modify, and distribute this
  * software and its documentation for any purpose and without
@@ -21,6 +21,10 @@
 #  include <assert.h>
 #endif
 
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+
 #if defined(__INTEL_COMPILER) && defined(__unix__)
 
 #ifdef HAVE_NETINET_IN_H
@@ -36,13 +40,43 @@
 
 #include "ares_nowarn.h"
 
-#define CARES_MASK_USHORT (~(unsigned short) 0)
-#define CARES_MASK_UINT   (~(unsigned int) 0)
-#define CARES_MASK_ULONG  (~(unsigned long) 0)
+#if (SIZEOF_SHORT == 2)
+#  define CARES_MASK_SSHORT  0x7FFF
+#  define CARES_MASK_USHORT  0xFFFF
+#elif (SIZEOF_SHORT == 4)
+#  define CARES_MASK_SSHORT  0x7FFFFFFF
+#  define CARES_MASK_USHORT  0xFFFFFFFF
+#elif (SIZEOF_SHORT == 8)
+#  define CARES_MASK_SSHORT  0x7FFFFFFFFFFFFFFF
+#  define CARES_MASK_USHORT  0xFFFFFFFFFFFFFFFF
+#else
+#  error "SIZEOF_SHORT not defined"
+#endif
 
-#define CARES_MASK_SSHORT (CARES_MASK_USHORT >> 1)
-#define CARES_MASK_SINT   (CARES_MASK_UINT >> 1)
-#define CARES_MASK_SLONG  (CARES_MASK_ULONG >> 1)
+#if (SIZEOF_INT == 2)
+#  define CARES_MASK_SINT  0x7FFF
+#  define CARES_MASK_UINT  0xFFFF
+#elif (SIZEOF_INT == 4)
+#  define CARES_MASK_SINT  0x7FFFFFFF
+#  define CARES_MASK_UINT  0xFFFFFFFF
+#elif (SIZEOF_INT == 8)
+#  define CARES_MASK_SINT  0x7FFFFFFFFFFFFFFF
+#  define CARES_MASK_UINT  0xFFFFFFFFFFFFFFFF
+#elif (SIZEOF_INT == 16)
+#  define CARES_MASK_SINT  0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
+#  define CARES_MASK_UINT  0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
+#else
+#  error "SIZEOF_INT not defined"
+#endif
+
+#ifndef HAVE_LIMITS_H
+/* systems without <limits.h> we guess have 32 bit longs */
+#define CARES_MASK_SLONG  0x7FFFFFFFL
+#define CARES_MASK_ULONG  0xFFFFFFFFUL
+#else
+#define CARES_MASK_ULONG  ULONG_MAX
+#define CARES_MASK_SLONG  LONG_MAX
+#endif
 
 /*
 ** unsigned size_t to signed long

deps/cares/src/ares_options.c

@@ -158,6 +158,9 @@ int ares_set_servers_csv(ares_channel channel,
      return ARES_SUCCESS; /* blank all servers */
 
   csv = malloc(i + 2);
+  if (!csv)
+    return ARES_ENOMEM;
+
   strcpy(csv, _csv);
   if (csv[i-1] != ',') { /* make parsing easier by ensuring ending ',' */
     csv[i] = ',';

deps/cares/src/ares_parse_soa_reply.c

@@ -86,7 +86,10 @@ ares_parse_soa_reply(const unsigned char *abuf, int alen,
   /* allocate result struct */
   soa = ares_malloc_data(ARES_DATATYPE_SOA_REPLY);
   if (!soa)
-    return ARES_ENOMEM;
+    {
+      status = ARES_ENOMEM;
+      goto failed_stat;
+    }
 
   /* nsname */
   status = ares__expand_name_for_response(aptr, abuf, alen, &soa->nsname, &len);

deps/cares/src/ares_parse_txt_reply.c

@@ -133,6 +133,8 @@ ares_parse_txt_reply (const unsigned char *abuf, int alen,
                   break;
                 }
 
+              ++strptr;
+
               /* Allocate storage for this TXT answer appending it to the list */
               txt_curr = ares_malloc_data(ARES_DATATYPE_TXT_REPLY);
               if (!txt_curr)
@@ -150,16 +152,13 @@ ares_parse_txt_reply (const unsigned char *abuf, int alen,
                 }
               txt_last = txt_curr;
 
-              txt_curr->record_start = strptr == aptr;
               txt_curr->length = substr_len;
               txt_curr->txt = malloc (substr_len + 1/* Including null byte */);
               if (txt_curr->txt == NULL)
                 {
                   status = ARES_ENOMEM;
                   break;
                 }
-
-              ++strptr;
               memcpy ((char *) txt_curr->txt, strptr, substr_len);
 
               /* Make sure we NULL-terminate */