deps: sync with upstream c-ares/c-ares@2bae2d5

PR-URL: #5090
Reviewed-By: Saúl Ibarra Corretgé <[email protected]>

Author: indutny

deps/cares/include/ares.h

@@ -19,6 +19,8 @@
 #define ARES__H
 
 #include "ares_version.h"  /* c-ares version defines   */
+#include "ares_build.h"    /* c-ares build definitions */
+#include "ares_rules.h"    /* c-ares rules enforcement */
 
 /*
  * Define WIN32 when build target is Win32 API
@@ -29,9 +31,6 @@
 #  define WIN32
 #endif
 
-/* Data type definition of ares_socklen_t. */
-typedef unsigned ares_socklen_t;
-
 #include <sys/types.h>
 
 /* HP-UX systems version 9, 10 and 11 lack sys/select.h and so does oldish
@@ -297,6 +296,13 @@ typedef int  (*ares_sock_create_callback)(ares_socket_t socket_fd,
 
 CARES_EXTERN int ares_library_init(int flags);
 
+CARES_EXTERN int ares_library_init_mem(int flags,
+                                       void *(*amalloc)(size_t size),
+                                       void (*afree)(void *ptr),
+                                       void *(*arealloc)(void *ptr, size_t size));
+
+CARES_EXTERN int ares_library_initialized(void);
+
 CARES_EXTERN void ares_library_cleanup(void);
 
 CARES_EXTERN const char *ares_version(int *version);
@@ -338,6 +344,9 @@ CARES_EXTERN void ares_set_socket_callback(ares_channel channel,
                                            ares_sock_create_callback callback,
                                            void *user_data);
 
+CARES_EXTERN int ares_set_sortlist(ares_channel channel,
+                                   const char *sortstr);
+
 CARES_EXTERN void ares_send(ares_channel channel,
                             const unsigned char *qbuf,
                             int qlen,
@@ -473,8 +482,17 @@ 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 */
+};
+
+/* NOTE: This structure is a superset of ares_txt_reply
+ */
+struct ares_txt_ext {
+  struct ares_txt_ext      *next;
+  unsigned char            *txt;
+  size_t                   length;
+  /* 1 - if start of new record
+   * 0 - if a chunk in the same record */
+  unsigned char            record_start;
 };
 
 struct ares_naptr_reply {
@@ -540,6 +558,10 @@ CARES_EXTERN int ares_parse_txt_reply(const unsigned char* abuf,
                                       int alen,
                                       struct ares_txt_reply** txt_out);
 
+CARES_EXTERN int ares_parse_txt_reply_ext(const unsigned char* abuf,
+                                          int alen,
+                                          struct ares_txt_ext** txt_out);
+
 CARES_EXTERN int ares_parse_naptr_reply(const unsigned char* abuf,
                                         int alen,
                                         struct ares_naptr_reply** naptr_out);
@@ -556,7 +578,6 @@ CARES_EXTERN void ares_free_data(void *dataptr);
 
 CARES_EXTERN const char *ares_strerror(int code);
 
-/* TODO:  Hold port here as well. */
 struct ares_addr_node {
   struct ares_addr_node *next;
   int family;
@@ -566,15 +587,32 @@ struct ares_addr_node {
   } addr;
 };
 
+struct ares_addr_port_node {
+  struct ares_addr_port_node *next;
+  int family;
+  union {
+    struct in_addr       addr4;
+    struct ares_in6_addr addr6;
+  } addr;
+  int udp_port;
+  int tcp_port;
+};
+
 CARES_EXTERN int ares_set_servers(ares_channel channel,
                                   struct ares_addr_node *servers);
+CARES_EXTERN int ares_set_servers_ports(ares_channel channel,
+                                        struct ares_addr_port_node *servers);
 
 /* Incomming string format: host[:port][,host[:port]]... */
 CARES_EXTERN int ares_set_servers_csv(ares_channel channel,
                                       const char* servers);
+CARES_EXTERN int ares_set_servers_ports_csv(ares_channel channel,
+                                            const char* servers);
 
 CARES_EXTERN int ares_get_servers(ares_channel channel,
                                   struct ares_addr_node **servers);
+CARES_EXTERN int ares_get_servers_ports(ares_channel channel,
+                                        struct ares_addr_port_node **servers);
 
 CARES_EXTERN const char *ares_inet_ntop(int af, const void *src, char *dst,
                                         ares_socklen_t size);

deps/cares/include/ares_build.h

@@ -0,0 +1,117 @@
+/* ares_build.h.  Generated from ares_build.h.in by configure.  */
+#ifndef __CARES_BUILD_H
+#define __CARES_BUILD_H
+
+
+/* Copyright (C) 2009 by Daniel Stenberg et al
+ *
+ * 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.
+ */
+
+/* ================================================================ */
+/*               NOTES FOR CONFIGURE CAPABLE SYSTEMS                */
+/* ================================================================ */
+
+/*
+ * NOTE 1:
+ * -------
+ *
+ * Nothing in this file is intended to be modified or adjusted by the
+ * c-ares library user nor by the c-ares library builder.
+ *
+ * If you think that something actually needs to be changed, adjusted
+ * or fixed in this file, then, report it on the c-ares development
+ * mailing list: http://cool.haxx.se/mailman/listinfo/c-ares/
+ *
+ * This header file shall only export symbols which are 'cares' or 'CARES'
+ * prefixed, otherwise public name space would be polluted.
+ *
+ * NOTE 2:
+ * -------
+ *
+ * Right now you might be staring at file ares_build.h.in or ares_build.h,
+ * this is due to the following reason:
+ *
+ * On systems capable of running the configure script, the configure process
+ * will overwrite the distributed ares_build.h file with one that is suitable
+ * and specific to the library being configured and built, which is generated
+ * from the ares_build.h.in template file.
+ *
+ */
+
+/* ================================================================ */
+/*  DEFINITION OF THESE SYMBOLS SHALL NOT TAKE PLACE ANYWHERE ELSE  */
+/* ================================================================ */
+
+#ifdef CARES_SIZEOF_LONG
+#  error "CARES_SIZEOF_LONG shall not be defined except in ares_build.h"
+   Error Compilation_aborted_CARES_SIZEOF_LONG_already_defined
+#endif
+
+#ifdef CARES_TYPEOF_ARES_SOCKLEN_T
+#  error "CARES_TYPEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
+   Error Compilation_aborted_CARES_TYPEOF_ARES_SOCKLEN_T_already_defined
+#endif
+
+#ifdef CARES_SIZEOF_ARES_SOCKLEN_T
+#  error "CARES_SIZEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
+   Error Compilation_aborted_CARES_SIZEOF_ARES_SOCKLEN_T_already_defined
+#endif
+
+/* ================================================================ */
+/*  EXTERNAL INTERFACE SETTINGS FOR CONFIGURE CAPABLE SYSTEMS ONLY  */
+/* ================================================================ */
+
+/* Configure process defines this to 1 when it finds out that system  */
+/* header file ws2tcpip.h must be included by the external interface. */
+
+#ifdef WIN32
+#  define CARES_PULL_WS2TCPIP_H 1
+#else
+#  define CARES_PULL_SYS_TYPES_H 1
+#  define CARES_PULL_SYS_SOCKET_H 1
+#endif
+
+/* #undef CARES_PULL_WS2TCPIP_H */
+#ifdef CARES_PULL_WS2TCPIP_H
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN
+#  endif
+#  include <windows.h>
+#  include <winsock2.h>
+#  include <ws2tcpip.h>
+#endif
+
+/* Configure process defines this to 1 when it finds out that system   */
+/* header file sys/types.h must be included by the external interface. */
+#ifdef CARES_PULL_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+
+/* Configure process defines this to 1 when it finds out that system    */
+/* header file sys/socket.h must be included by the external interface. */
+#ifdef CARES_PULL_SYS_SOCKET_H
+#  include <sys/socket.h>
+#endif
+
+/* The size of `long', as computed by sizeof. */
+/* #undef CARES_SIZEOF_LONG */
+
+/* Integral data type used for ares_socklen_t. */
+#define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
+
+/* The size of `ares_socklen_t', as computed by sizeof. */
+#define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+/* Data type definition of ares_socklen_t. */
+typedef CARES_TYPEOF_ARES_SOCKLEN_T ares_socklen_t;
+
+#endif /* __CARES_BUILD_H */

deps/cares/src/ares_rules.h deps/cares/include/ares_rules.h

@@ -30,14 +30,14 @@ void ares__close_sockets(ares_channel channel, struct server_state *server)
       sendreq = server->qhead;
       server->qhead = sendreq->next;
       if (sendreq->data_storage != NULL)
-        free(sendreq->data_storage);
-      free(sendreq);
+        ares_free(sendreq->data_storage);
+      ares_free(sendreq);
     }
   server->qtail = NULL;
 
   /* Reset any existing input buffer. */
   if (server->tcp_buffer)
-    free(server->tcp_buffer);
+    ares_free(server->tcp_buffer);
   server->tcp_buffer = NULL;
   server->tcp_lenbuf_pos = 0;
 

deps/cares/src/ares__close_sockets.c

@@ -94,7 +94,7 @@ int ares__get_hostent(FILE *fp, int family, struct hostent **host)
         p++;
       if (!*p)
         /* Ignore line if reached end of line. */
-        continue;
+        continue;  /* LCOV_EXCL_LINE: trailing whitespace already stripped */
 
       /* Pointer to start of host name. */
       txthost = p;
@@ -164,7 +164,7 @@ int ares__get_hostent(FILE *fp, int family, struct hostent **host)
       */
 
       /* Allocate memory for the hostent structure. */
-      hostent = malloc(sizeof(struct hostent));
+      hostent = ares_malloc(sizeof(struct hostent));
       if (!hostent)
         break;
 
@@ -173,16 +173,16 @@ int ares__get_hostent(FILE *fp, int family, struct hostent **host)
       hostent->h_addr_list = NULL;
 
       /* Copy official host name. */
-      hostent->h_name = strdup(txthost);
+      hostent->h_name = ares_strdup(txthost);
       if (!hostent->h_name)
         break;
 
       /* Copy network address. */
-      hostent->h_addr_list = malloc(2 * sizeof(char *));
+      hostent->h_addr_list = ares_malloc(2 * sizeof(char *));
       if (!hostent->h_addr_list)
         break;
       hostent->h_addr_list[1] = NULL;
-      hostent->h_addr_list[0] = malloc(addrlen);
+      hostent->h_addr_list[0] = ares_malloc(addrlen);
       if (!hostent->h_addr_list[0])
         break;
       if (addr.family == AF_INET)
@@ -191,7 +191,7 @@ int ares__get_hostent(FILE *fp, int family, struct hostent **host)
         memcpy(hostent->h_addr_list[0], &addr.addrV6, sizeof(addr.addrV6));
 
       /* Copy aliases. */
-      hostent->h_aliases = malloc((naliases + 1) * sizeof(char *));
+      hostent->h_aliases = ares_malloc((naliases + 1) * sizeof(char *));
       if (!hostent->h_aliases)
         break;
       alias = hostent->h_aliases;
@@ -207,7 +207,7 @@ int ares__get_hostent(FILE *fp, int family, struct hostent **host)
           while (*q && ISSPACE(*q))
             q++;
           *p = '\0';
-          if ((*alias = strdup(txtalias)) == NULL)
+          if ((*alias = ares_strdup(txtalias)) == NULL)
             break;
           alias++;
           txtalias = *q ? q : NULL;
@@ -221,7 +221,7 @@ int ares__get_hostent(FILE *fp, int family, struct hostent **host)
       hostent->h_length = aresx_uztoss(addrlen);
 
       /* Free line buffer. */
-      free(line);
+      ares_free(line);
 
       /* Return hostent successfully */
       *host = hostent;
@@ -231,28 +231,28 @@ int ares__get_hostent(FILE *fp, int family, struct hostent **host)
 
   /* If allocated, free line buffer. */
   if (line)
-    free(line);
+    ares_free(line);
 
   if (status == ARES_SUCCESS)
     {
       /* Memory allocation failure; clean up. */
       if (hostent)
         {
           if (hostent->h_name)
-            free((char *) hostent->h_name);
+            ares_free((char *) hostent->h_name);
           if (hostent->h_aliases)
             {
               for (alias = hostent->h_aliases; *alias; alias++)
-                free(*alias);
-              free(hostent->h_aliases);
+                ares_free(*alias);
+              ares_free(hostent->h_aliases);
             }
           if (hostent->h_addr_list)
             {
               if (hostent->h_addr_list[0])
-                free(hostent->h_addr_list[0]);
-              free(hostent->h_addr_list);
+                ares_free(hostent->h_addr_list[0]);
+              ares_free(hostent->h_addr_list);
             }
-          free(hostent);
+          ares_free(hostent);
         }
       return ARES_ENOMEM;
     }

deps/cares/src/ares__get_hostent.c

@@ -36,7 +36,7 @@ int ares__read_line(FILE *fp, char **buf, size_t *bufsize)
 
   if (*buf == NULL)
     {
-      *buf = malloc(128);
+      *buf = ares_malloc(128);
       if (!*buf)
         return ARES_ENOMEM;
       *bufsize = 128;
@@ -59,10 +59,11 @@ int ares__read_line(FILE *fp, char **buf, size_t *bufsize)
         continue;
 
       /* Allocate more space. */
-      newbuf = realloc(*buf, *bufsize * 2);
+      newbuf = ares_realloc(*buf, *bufsize * 2);
       if (!newbuf)
         {
-          free(*buf);
+          ares_free(*buf);
+          *buf = NULL;
           return ARES_ENOMEM;
         }
       *buf = newbuf;

deps/cares/src/ares__read_line.c

@@ -56,7 +56,7 @@ struct timeval ares__tvnow(void)
   */
 #ifdef HAVE_GETTIMEOFDAY
   else
-    (void)gettimeofday(&now, NULL);
+    (void)gettimeofday(&now, NULL);  /* LCOV_EXCL_LINE */
 #else
   else {
     now.tv_sec = (long)time(NULL);

deps/cares/src/ares__timeval.c

@@ -130,7 +130,7 @@ int ares_create_query(const char *name, int dnsclass, int type,
     return ARES_EBADNAME;
 
   *buflen = len + HFIXEDSZ + QFIXEDSZ + (max_udp_size ? EDNSFIXEDSZ : 0);
-  *buf = malloc(*buflen);
+  *buf = ares_malloc(*buflen);
   if (!*buf)
       return ARES_ENOMEM;