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Description: Add the ares_get_config() routine used by Unreal IRCd.
Originally taken from the Unreal IRCd distribution, later modified
by me to properly support IPv6 nameserver addresses since c-ares-1.7.1.
Origin: the Unreal IRCd distribution
Author: Peter Pentchev <roam@FreeBSD.org>
Forwarded: no
Last-Update: 2010-12-19
--- ares.h.orig
+++ ares.h
@@ -260,6 +260,14 @@
int nsort;
};
+/** Public available config (readonly) interface for ares_get_config(). */
+struct ares_config_info {
+ int timeout;
+ int tries;
+ int numservers;
+ char **servers;
+};
+
struct hostent;
struct timeval;
struct sockaddr;
@@ -530,6 +538,8 @@
CARES_EXTERN int ares_get_servers(ares_channel channel,
struct ares_addr_node **servers);
+CARES_EXTERN int ares_get_config(struct ares_config_info *d, ares_channel c);
+
#ifdef __cplusplus
}
#endif
--- ares_init.c.orig 2013-02-17 11:44:02.000000000 -0500
+++ ares_init.c 2013-05-15 13:43:31.000000000 -0400
@@ -1875,6 +1875,36 @@
}
#endif /* !WIN32 & !WATT32 & !ANDROID & !__ANDROID__ */
+int ares_get_config(struct ares_config_info *d, ares_channel c)
+{
+ int i;
+ const char *p;
+ char tmp[sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")];
+
+ memset(d, 0, sizeof(struct ares_config_info));
+
+ d->timeout = c->timeout;
+ d->tries = c->tries;
+ d->numservers = c->nservers;
+ d->servers = calloc(sizeof(char *), c->nservers);
+ for (i = 0; i < c->nservers; i++)
+ {
+ if (c->servers[i].addr.family == AF_INET)
+ p = ares_inet_ntop(c->servers[i].addr.family,
+ (const char *)&c->servers[i].addr.addrV4,
+ tmp, sizeof(tmp));
+ else if (c->servers[i].addr.family == AF_INET6)
+ p = ares_inet_ntop(c->servers[i].addr.family,
+ (const char *)&c->servers[i].addr.addrV6,
+ tmp, sizeof(tmp));
+ else
+ p = NULL;
+ d->servers[i] = p ? strdup(p) : NULL;
+ }
+
+ return ARES_SUCCESS;
+}
+
/* initialize an rc4 key. If possible a cryptographically secure random key
is generated using a suitable function (for example win32's RtlGenRandom as
described in
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