#include "gnetworkingprivate.h"
#include "gasyncresult.h"
#include "ginetaddress.h"
-#include "ginetsocketaddress.h"
#include "gsimpleasyncresult.h"
#include "gtask.h"
#include "gsrvtarget.h"
/* Make sure _g_networking_init() has been called */
g_type_ensure (G_TYPE_INET_ADDRESS);
- /* Initialize _g_resolver_addrinfo_hints */
-#ifdef AI_ADDRCONFIG
- _g_resolver_addrinfo_hints.ai_flags |= AI_ADDRCONFIG;
-#endif
- /* These two don't actually matter, they just get copied into the
- * returned addrinfo structures (and then we ignore them). But if
- * we leave them unset, we'll get back duplicate answers.
- */
- _g_resolver_addrinfo_hints.ai_socktype = SOCK_STREAM;
- _g_resolver_addrinfo_hints.ai_protocol = IPPROTO_TCP;
-
/**
* GResolver::reload:
* @resolver: a #GResolver
* Since: 2.22
*/
G_DEFINE_QUARK (g-resolver-error-quark, g_resolver_error)
-
-static GResolverError
-g_resolver_error_from_addrinfo_error (gint err)
-{
- switch (err)
- {
- case EAI_FAIL:
-#if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME)
- case EAI_NODATA:
-#endif
- case EAI_NONAME:
- return G_RESOLVER_ERROR_NOT_FOUND;
-
- case EAI_AGAIN:
- return G_RESOLVER_ERROR_TEMPORARY_FAILURE;
-
- default:
- return G_RESOLVER_ERROR_INTERNAL;
- }
-}
-
-struct addrinfo _g_resolver_addrinfo_hints;
-
-/* Private method to process a getaddrinfo() response. */
-GList *
-_g_resolver_addresses_from_addrinfo (const char *hostname,
- struct addrinfo *res,
- gint gai_retval,
- GError **error)
-{
- struct addrinfo *ai;
- GSocketAddress *sockaddr;
- GInetAddress *addr;
- GList *addrs;
-
- if (gai_retval != 0)
- {
- g_set_error (error, G_RESOLVER_ERROR,
- g_resolver_error_from_addrinfo_error (gai_retval),
- _("Error resolving '%s': %s"),
- hostname, gai_strerror (gai_retval));
- return NULL;
- }
-
- g_return_val_if_fail (res != NULL, NULL);
-
- addrs = NULL;
- for (ai = res; ai; ai = ai->ai_next)
- {
- sockaddr = g_socket_address_new_from_native (ai->ai_addr, ai->ai_addrlen);
- if (!sockaddr || !G_IS_INET_SOCKET_ADDRESS (sockaddr))
- continue;
-
- addr = g_object_ref (g_inet_socket_address_get_address ((GInetSocketAddress *)sockaddr));
- addrs = g_list_prepend (addrs, addr);
- g_object_unref (sockaddr);
- }
-
- return g_list_reverse (addrs);
-}
-
-/* Private method to set up a getnameinfo() request */
-void
-_g_resolver_address_to_sockaddr (GInetAddress *address,
- struct sockaddr_storage *sa,
- gsize *len)
-{
- GSocketAddress *sockaddr;
-
- sockaddr = g_inet_socket_address_new (address, 0);
- g_socket_address_to_native (sockaddr, (struct sockaddr *)sa, sizeof (*sa), NULL);
- *len = g_socket_address_get_native_size (sockaddr);
- g_object_unref (sockaddr);
-}
-
-/* Private method to process a getnameinfo() response. */
-char *
-_g_resolver_name_from_nameinfo (GInetAddress *address,
- const gchar *name,
- gint gni_retval,
- GError **error)
-{
- if (gni_retval != 0)
- {
- gchar *phys;
-
- phys = g_inet_address_to_string (address);
- g_set_error (error, G_RESOLVER_ERROR,
- g_resolver_error_from_addrinfo_error (gni_retval),
- _("Error reverse-resolving '%s': %s"),
- phys ? phys : "(unknown)", gai_strerror (gni_retval));
- g_free (phys);
- return NULL;
- }
-
- return g_strdup (name);
-}
-
-#if defined(G_OS_UNIX)
-
-static gboolean
-parse_short (guchar **p,
- guchar *end,
- guint16 *value)
-{
- if (*p + 2 > end)
- return FALSE;
- GETSHORT (*value, *p);
- return TRUE;
-}
-
-static gboolean
-parse_long (guchar **p,
- guchar *end,
- guint32 *value)
-{
- if (*p + 4 > end)
- return FALSE;
- GETLONG (*value, *p);
- return TRUE;
-}
-
-static GVariant *
-parse_res_srv (guchar *answer,
- guchar *end,
- guchar *p)
-{
- gchar namebuf[1024];
- guint16 priority, weight, port;
- gint n;
-
- if (!parse_short (&p, end, &priority) ||
- !parse_short (&p, end, &weight) ||
- !parse_short (&p, end, &port))
- return NULL;
-
- n = dn_expand (answer, end, p, namebuf, sizeof (namebuf));
- if (n < 0)
- return NULL;
- *p += n;
-
- return g_variant_new ("(qqqs)",
- priority,
- weight,
- port,
- namebuf);
-}
-
-static GVariant *
-parse_res_soa (guchar *answer,
- guchar *end,
- guchar *p)
-{
- gchar mnamebuf[1024];
- gchar rnamebuf[1024];
- guint32 serial, refresh, retry, expire, ttl;
- gint n;
-
- n = dn_expand (answer, end, p, mnamebuf, sizeof (mnamebuf));
- if (n < 0)
- return NULL;
- p += n;
-
- n = dn_expand (answer, end, p, rnamebuf, sizeof (rnamebuf));
- if (n < 0)
- return NULL;
- p += n;
-
- if (!parse_long (&p, end, &serial) ||
- !parse_long (&p, end, &refresh) ||
- !parse_long (&p, end, &retry) ||
- !parse_long (&p, end, &expire) ||
- !parse_long (&p, end, &ttl))
- return NULL;
-
- return g_variant_new ("(ssuuuuu)",
- mnamebuf,
- rnamebuf,
- serial,
- refresh,
- retry,
- expire,
- ttl);
-}
-
-static GVariant *
-parse_res_ns (guchar *answer,
- guchar *end,
- guchar *p)
-{
- gchar namebuf[1024];
- gint n;
-
- n = dn_expand (answer, end, p, namebuf, sizeof (namebuf));
- if (n < 0)
- return NULL;
-
- return g_variant_new ("(s)", namebuf);
-}
-
-static GVariant *
-parse_res_mx (guchar *answer,
- guchar *end,
- guchar *p)
-{
- gchar namebuf[1024];
- guint16 preference;
- gint n;
-
- if (!parse_short (&p, end, &preference))
- return NULL;
-
- n = dn_expand (answer, end, p, namebuf, sizeof (namebuf));
- if (n < 0)
- return NULL;
- p += n;
-
- return g_variant_new ("(qs)",
- preference,
- namebuf);
-}
-
-static GVariant *
-parse_res_txt (guchar *answer,
- guchar *end,
- guchar *p)
-{
- GVariant *record;
- GPtrArray *array;
- gsize len;
-
- array = g_ptr_array_new_with_free_func (g_free);
- while (p < end)
- {
- len = *(p++);
- if (len > p - end)
- break;
- g_ptr_array_add (array, g_strndup ((gchar *)p, len));
- p += len;
- }
-
- record = g_variant_new ("(@as)",
- g_variant_new_strv ((const gchar **)array->pdata, array->len));
- g_ptr_array_free (array, TRUE);
- return record;
-}
-
-gint
-_g_resolver_record_type_to_rrtype (GResolverRecordType type)
-{
- switch (type)
- {
- case G_RESOLVER_RECORD_SRV:
- return T_SRV;
- case G_RESOLVER_RECORD_TXT:
- return T_TXT;
- case G_RESOLVER_RECORD_SOA:
- return T_SOA;
- case G_RESOLVER_RECORD_NS:
- return T_NS;
- case G_RESOLVER_RECORD_MX:
- return T_MX;
- }
- g_return_val_if_reached (-1);
-}
-
-/* Private method to process a res_query response into GSrvTargets */
-GList *
-_g_resolver_records_from_res_query (const gchar *rrname,
- gint rrtype,
- guchar *answer,
- gint len,
- gint herr,
- GError **error)
-{
- gint count;
- guchar *end, *p;
- guint16 type, qclass, rdlength;
- guint32 ttl;
- HEADER *header;
- GList *records;
- GVariant *record;
- gint n, i;
-
- if (len <= 0)
- {
- GResolverError errnum;
- const gchar *format;
-
- if (len == 0 || herr == HOST_NOT_FOUND || herr == NO_DATA)
- {
- errnum = G_RESOLVER_ERROR_NOT_FOUND;
- format = _("No DNS record of the requested type for '%s'");
- }
- else if (herr == TRY_AGAIN)
- {
- errnum = G_RESOLVER_ERROR_TEMPORARY_FAILURE;
- format = _("Temporarily unable to resolve '%s'");
- }
- else
- {
- errnum = G_RESOLVER_ERROR_INTERNAL;
- format = _("Error resolving '%s'");
- }
-
- g_set_error (error, G_RESOLVER_ERROR, errnum, format, rrname);
- return NULL;
- }
-
- records = NULL;
-
- header = (HEADER *)answer;
- p = answer + sizeof (HEADER);
- end = answer + len;
-
- /* Skip query */
- count = ntohs (header->qdcount);
- for (i = 0; i < count && p < end; i++)
- {
- n = dn_skipname (p, end);
- if (n < 0)
- break;
- p += n;
- p += 4;
- }
-
- /* Incomplete response */
- if (i < count)
- {
- g_set_error (error, G_RESOLVER_ERROR, G_RESOLVER_ERROR_TEMPORARY_FAILURE,
- _("Incomplete data received for '%s'"), rrname);
- return NULL;
- }
-
- /* Read answers */
- count = ntohs (header->ancount);
- for (i = 0; i < count && p < end; i++)
- {
- n = dn_skipname (p, end);
- if (n < 0)
- break;
- p += n;
-
- if (!parse_short (&p, end, &type) ||
- !parse_short (&p, end, &qclass) ||
- !parse_long (&p, end, &ttl) ||
- !parse_short (&p, end, &rdlength))
- break;
-
- ttl = ttl; /* To avoid -Wunused-but-set-variable */
-
- if (p + rdlength > end)
- break;
-
- if (type == rrtype && qclass == C_IN)
- {
- switch (rrtype)
- {
- case T_SRV:
- record = parse_res_srv (answer, end, p);
- break;
- case T_MX:
- record = parse_res_mx (answer, end, p);
- break;
- case T_SOA:
- record = parse_res_soa (answer, end, p);
- break;
- case T_NS:
- record = parse_res_ns (answer, end, p);
- break;
- case T_TXT:
- record = parse_res_txt (answer, p + rdlength, p);
- break;
- default:
- g_warn_if_reached ();
- record = NULL;
- break;
- }
-
- if (record != NULL)
- records = g_list_prepend (records, record);
- }
-
- p += rdlength;
- }
-
- /* Somehow got a truncated response */
- if (i < count)
- {
- g_list_free_full (records, (GDestroyNotify)g_variant_unref);
- g_set_error (error, G_RESOLVER_ERROR, G_RESOLVER_ERROR_TEMPORARY_FAILURE,
- _("Incomplete data received for '%s'"), rrname);
- return NULL;
- }
-
- return records;
-}
-
-#elif defined(G_OS_WIN32)
-static GVariant *
-parse_dns_srv (DNS_RECORD *rec)
-{
- return g_variant_new ("(qqqs)",
- (guint16)rec->Data.SRV.wPriority,
- (guint16)rec->Data.SRV.wWeight,
- (guint16)rec->Data.SRV.wPort,
- rec->Data.SRV.pNameTarget);
-}
-
-static GVariant *
-parse_dns_soa (DNS_RECORD *rec)
-{
- return g_variant_new ("(ssuuuuu)",
- rec->Data.SOA.pNamePrimaryServer,
- rec->Data.SOA.pNameAdministrator,
- (guint32)rec->Data.SOA.dwSerialNo,
- (guint32)rec->Data.SOA.dwRefresh,
- (guint32)rec->Data.SOA.dwRetry,
- (guint32)rec->Data.SOA.dwExpire,
- (guint32)rec->Data.SOA.dwDefaultTtl);
-}
-
-static GVariant *
-parse_dns_ns (DNS_RECORD *rec)
-{
- return g_variant_new ("(s)", rec->Data.NS.pNameHost);
-}
-
-static GVariant *
-parse_dns_mx (DNS_RECORD *rec)
-{
- return g_variant_new ("(qs)",
- (guint16)rec->Data.MX.wPreference,
- rec->Data.MX.pNameExchange);
-}
-
-static GVariant *
-parse_dns_txt (DNS_RECORD *rec)
-{
- GVariant *record;
- GPtrArray *array;
- DWORD i;
-
- array = g_ptr_array_new ();
- for (i = 0; i < rec->Data.TXT.dwStringCount; i++)
- g_ptr_array_add (array, rec->Data.TXT.pStringArray[i]);
- record = g_variant_new ("(@as)",
- g_variant_new_strv ((const gchar **)array->pdata, array->len));
- g_ptr_array_free (array, TRUE);
- return record;
-}
-
-WORD
-_g_resolver_record_type_to_dnstype (GResolverRecordType type)
-{
- switch (type)
- {
- case G_RESOLVER_RECORD_SRV:
- return DNS_TYPE_SRV;
- case G_RESOLVER_RECORD_TXT:
- return DNS_TYPE_TEXT;
- case G_RESOLVER_RECORD_SOA:
- return DNS_TYPE_SOA;
- case G_RESOLVER_RECORD_NS:
- return DNS_TYPE_NS;
- case G_RESOLVER_RECORD_MX:
- return DNS_TYPE_MX;
- }
- g_return_val_if_reached (-1);
-}
-
-/* Private method to process a DnsQuery response into GVariants */
-GList *
-_g_resolver_records_from_DnsQuery (const gchar *rrname,
- WORD dnstype,
- DNS_STATUS status,
- DNS_RECORD *results,
- GError **error)
-{
- DNS_RECORD *rec;
- gpointer record;
- GList *records;
-
- if (status != ERROR_SUCCESS)
- {
- GResolverError errnum;
- const gchar *format;
-
- if (status == DNS_ERROR_RCODE_NAME_ERROR)
- {
- errnum = G_RESOLVER_ERROR_NOT_FOUND;
- format = _("No DNS record of the requested type for '%s'");
- }
- else if (status == DNS_ERROR_RCODE_SERVER_FAILURE)
- {
- errnum = G_RESOLVER_ERROR_TEMPORARY_FAILURE;
- format = _("Temporarily unable to resolve '%s'");
- }
- else
- {
- errnum = G_RESOLVER_ERROR_INTERNAL;
- format = _("Error resolving '%s'");
- }
-
- g_set_error (error, G_RESOLVER_ERROR, errnum, format, rrname);
- return NULL;
- }
-
- records = NULL;
- for (rec = results; rec; rec = rec->pNext)
- {
- if (rec->wType != dnstype)
- continue;
- switch (dnstype)
- {
- case DNS_TYPE_SRV:
- record = parse_dns_srv (rec);
- break;
- case DNS_TYPE_SOA:
- record = parse_dns_soa (rec);
- break;
- case DNS_TYPE_NS:
- record = parse_dns_ns (rec);
- break;
- case DNS_TYPE_MX:
- record = parse_dns_mx (rec);
- break;
- case DNS_TYPE_TEXT:
- record = parse_dns_txt (rec);
- break;
- default:
- g_warn_if_reached ();
- record = NULL;
- break;
- }
- if (record != NULL)
- records = g_list_prepend (records, g_variant_ref_sink (record));
- }
-
- return records;
-}
-
-#endif
#include "gnetworkingprivate.h"
#include "gcancellable.h"
+#include "ginetaddress.h"
+#include "ginetsocketaddress.h"
#include "gtask.h"
#include "gsocketaddress.h"
+#include "gsrvtarget.h"
G_DEFINE_TYPE (GThreadedResolver, g_threaded_resolver, G_TYPE_RESOLVER)
{
}
+static GResolverError
+g_resolver_error_from_addrinfo_error (gint err)
+{
+ switch (err)
+ {
+ case EAI_FAIL:
+#if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME)
+ case EAI_NODATA:
+#endif
+ case EAI_NONAME:
+ return G_RESOLVER_ERROR_NOT_FOUND;
+
+ case EAI_AGAIN:
+ return G_RESOLVER_ERROR_TEMPORARY_FAILURE;
+
+ default:
+ return G_RESOLVER_ERROR_INTERNAL;
+ }
+}
+
+static struct addrinfo addrinfo_hints;
+
static void
do_lookup_by_name (GTask *task,
gpointer source_object,
struct addrinfo *res = NULL;
GList *addresses;
gint retval;
- GError *error = NULL;
- retval = getaddrinfo (hostname, NULL, &_g_resolver_addrinfo_hints, &res);
- addresses = _g_resolver_addresses_from_addrinfo (hostname, res, retval, &error);
- if (res)
- freeaddrinfo (res);
+ retval = getaddrinfo (hostname, NULL, &addrinfo_hints, &res);
- if (addresses)
+ if (retval == 0)
{
+ struct addrinfo *ai;
+ GSocketAddress *sockaddr;
+ GInetAddress *addr;
+
+ addresses = NULL;
+ for (ai = res; ai; ai = ai->ai_next)
+ {
+ sockaddr = g_socket_address_new_from_native (ai->ai_addr, ai->ai_addrlen);
+ if (!sockaddr || !G_IS_INET_SOCKET_ADDRESS (sockaddr))
+ continue;
+
+ addr = g_object_ref (g_inet_socket_address_get_address ((GInetSocketAddress *)sockaddr));
+ addresses = g_list_prepend (addresses, addr);
+ g_object_unref (sockaddr);
+ }
+
+ addresses = g_list_reverse (addresses);
g_task_return_pointer (task, addresses,
(GDestroyNotify)g_resolver_free_addresses);
}
else
- g_task_return_error (task, error);
+ {
+ g_task_return_new_error (task,
+ G_RESOLVER_ERROR,
+ g_resolver_error_from_addrinfo_error (retval),
+ _("Error resolving '%s': %s"),
+ hostname, gai_strerror (retval));
+ }
+
+ if (res)
+ freeaddrinfo (res);
}
static GList *
GInetAddress *address = task_data;
struct sockaddr_storage sockaddr;
gsize sockaddr_size;
- gchar namebuf[NI_MAXHOST], *name;
+ GSocketAddress *gsockaddr;
+ gchar name[NI_MAXHOST];
gint retval;
- GError *error = NULL;
- _g_resolver_address_to_sockaddr (address, &sockaddr, &sockaddr_size);
- retval = getnameinfo ((struct sockaddr *)&sockaddr, sockaddr_size,
- namebuf, sizeof (namebuf), NULL, 0, NI_NAMEREQD);
- name = _g_resolver_name_from_nameinfo (address, namebuf, retval, &error);
+ gsockaddr = g_inet_socket_address_new (address, 0);
+ g_socket_address_to_native (gsockaddr, (struct sockaddr *)&sockaddr,
+ sizeof (sockaddr), NULL);
+ sockaddr_size = g_socket_address_get_native_size (gsockaddr);
+ g_object_unref (gsockaddr);
- if (name)
- g_task_return_pointer (task, name, g_free);
+ retval = getnameinfo ((struct sockaddr *)&sockaddr, sockaddr_size,
+ name, sizeof (name), NULL, 0, NI_NAMEREQD);
+ if (retval == 0)
+ g_task_return_pointer (task, g_strdup (name), g_free);
else
- g_task_return_error (task, error);
+ {
+ gchar *phys;
+
+ phys = g_inet_address_to_string (address);
+ g_task_return_new_error (task,
+ G_RESOLVER_ERROR,
+ g_resolver_error_from_addrinfo_error (retval),
+ _("Error reverse-resolving '%s': %s"),
+ phys ? phys : "(unknown)",
+ gai_strerror (retval));
+ g_free (phys);
+ }
}
static gchar *
}
+#if defined(G_OS_UNIX)
+static GVariant *
+parse_res_srv (guchar *answer,
+ guchar *end,
+ guchar **p)
+{
+ gchar namebuf[1024];
+ guint16 priority, weight, port;
+
+ GETSHORT (priority, *p);
+ GETSHORT (weight, *p);
+ GETSHORT (port, *p);
+ *p += dn_expand (answer, end, *p, namebuf, sizeof (namebuf));
+
+ return g_variant_new ("(qqqs)",
+ priority,
+ weight,
+ port,
+ namebuf);
+}
+
+static GVariant *
+parse_res_soa (guchar *answer,
+ guchar *end,
+ guchar **p)
+{
+ gchar mnamebuf[1024];
+ gchar rnamebuf[1024];
+ guint32 serial, refresh, retry, expire, ttl;
+
+ *p += dn_expand (answer, end, *p, mnamebuf, sizeof (mnamebuf));
+ *p += dn_expand (answer, end, *p, rnamebuf, sizeof (rnamebuf));
+
+ GETLONG (serial, *p);
+ GETLONG (refresh, *p);
+ GETLONG (retry, *p);
+ GETLONG (expire, *p);
+ GETLONG (ttl, *p);
+
+ return g_variant_new ("(ssuuuuu)",
+ mnamebuf,
+ rnamebuf,
+ serial,
+ refresh,
+ retry,
+ expire,
+ ttl);
+}
+
+static GVariant *
+parse_res_ns (guchar *answer,
+ guchar *end,
+ guchar **p)
+{
+ gchar namebuf[1024];
+
+ *p += dn_expand (answer, end, *p, namebuf, sizeof (namebuf));
+
+ return g_variant_new ("(s)", namebuf);
+}
+
+static GVariant *
+parse_res_mx (guchar *answer,
+ guchar *end,
+ guchar **p)
+{
+ gchar namebuf[1024];
+ guint16 preference;
+
+ GETSHORT (preference, *p);
+
+ *p += dn_expand (answer, end, *p, namebuf, sizeof (namebuf));
+
+ return g_variant_new ("(qs)",
+ preference,
+ namebuf);
+}
+
+static GVariant *
+parse_res_txt (guchar *answer,
+ guchar *end,
+ guchar **p)
+{
+ GVariant *record;
+ GPtrArray *array;
+ guchar *at = *p;
+ gsize len;
+
+ array = g_ptr_array_new_with_free_func (g_free);
+ while (at < end)
+ {
+ len = *(at++);
+ if (len > at - end)
+ break;
+ g_ptr_array_add (array, g_strndup ((gchar *)at, len));
+ at += len;
+ }
+
+ *p = at;
+ record = g_variant_new ("(@as)",
+ g_variant_new_strv ((const gchar **)array->pdata, array->len));
+ g_ptr_array_free (array, TRUE);
+ return record;
+}
+
+static gint
+g_resolver_record_type_to_rrtype (GResolverRecordType type)
+{
+ switch (type)
+ {
+ case G_RESOLVER_RECORD_SRV:
+ return T_SRV;
+ case G_RESOLVER_RECORD_TXT:
+ return T_TXT;
+ case G_RESOLVER_RECORD_SOA:
+ return T_SOA;
+ case G_RESOLVER_RECORD_NS:
+ return T_NS;
+ case G_RESOLVER_RECORD_MX:
+ return T_MX;
+ }
+ g_return_val_if_reached (-1);
+}
+
+static GList *
+g_resolver_records_from_res_query (const gchar *rrname,
+ gint rrtype,
+ guchar *answer,
+ gint len,
+ gint herr,
+ GError **error)
+{
+ gint count;
+ gchar namebuf[1024];
+ guchar *end, *p;
+ guint16 type, qclass, rdlength;
+ guint32 ttl;
+ HEADER *header;
+ GList *records;
+ GVariant *record;
+
+ if (len <= 0)
+ {
+ GResolverError errnum;
+ const gchar *format;
+
+ if (len == 0 || herr == HOST_NOT_FOUND || herr == NO_DATA)
+ {
+ errnum = G_RESOLVER_ERROR_NOT_FOUND;
+ format = _("No DNS record of the requested type for '%s'");
+ }
+ else if (herr == TRY_AGAIN)
+ {
+ errnum = G_RESOLVER_ERROR_TEMPORARY_FAILURE;
+ format = _("Temporarily unable to resolve '%s'");
+ }
+ else
+ {
+ errnum = G_RESOLVER_ERROR_INTERNAL;
+ format = _("Error resolving '%s'");
+ }
+
+ g_set_error (error, G_RESOLVER_ERROR, errnum, format, rrname);
+ return NULL;
+ }
+
+ records = NULL;
+
+ header = (HEADER *)answer;
+ p = answer + sizeof (HEADER);
+ end = answer + len;
+
+ /* Skip query */
+ count = ntohs (header->qdcount);
+ while (count-- && p < end)
+ {
+ p += dn_expand (answer, end, p, namebuf, sizeof (namebuf));
+ p += 4;
+
+ /* To silence gcc warnings */
+ namebuf[0] = namebuf[1];
+ }
+
+ /* Read answers */
+ count = ntohs (header->ancount);
+ while (count-- && p < end)
+ {
+ p += dn_expand (answer, end, p, namebuf, sizeof (namebuf));
+ GETSHORT (type, p);
+ GETSHORT (qclass, p);
+ GETLONG (ttl, p);
+ ttl = ttl; /* To avoid -Wunused-but-set-variable */
+ GETSHORT (rdlength, p);
+
+ if (type != rrtype || qclass != C_IN)
+ {
+ p += rdlength;
+ continue;
+ }
+
+ switch (rrtype)
+ {
+ case T_SRV:
+ record = parse_res_srv (answer, end, &p);
+ break;
+ case T_MX:
+ record = parse_res_mx (answer, end, &p);
+ break;
+ case T_SOA:
+ record = parse_res_soa (answer, end, &p);
+ break;
+ case T_NS:
+ record = parse_res_ns (answer, end, &p);
+ break;
+ case T_TXT:
+ record = parse_res_txt (answer, p + rdlength, &p);
+ break;
+ default:
+ g_warn_if_reached ();
+ record = NULL;
+ break;
+ }
+
+ if (record != NULL)
+ records = g_list_prepend (records, record);
+ }
+
+ return records;
+}
+
+#elif defined(G_OS_WIN32)
+
+static GVariant *
+parse_dns_srv (DNS_RECORD *rec)
+{
+ return g_variant_new ("(qqqs)",
+ (guint16)rec->Data.SRV.wPriority,
+ (guint16)rec->Data.SRV.wWeight,
+ (guint16)rec->Data.SRV.wPort,
+ rec->Data.SRV.pNameTarget);
+}
+
+static GVariant *
+parse_dns_soa (DNS_RECORD *rec)
+{
+ return g_variant_new ("(ssuuuuu)",
+ rec->Data.SOA.pNamePrimaryServer,
+ rec->Data.SOA.pNameAdministrator,
+ (guint32)rec->Data.SOA.dwSerialNo,
+ (guint32)rec->Data.SOA.dwRefresh,
+ (guint32)rec->Data.SOA.dwRetry,
+ (guint32)rec->Data.SOA.dwExpire,
+ (guint32)rec->Data.SOA.dwDefaultTtl);
+}
+
+static GVariant *
+parse_dns_ns (DNS_RECORD *rec)
+{
+ return g_variant_new ("(s)", rec->Data.NS.pNameHost);
+}
+
+static GVariant *
+parse_dns_mx (DNS_RECORD *rec)
+{
+ return g_variant_new ("(qs)",
+ (guint16)rec->Data.MX.wPreference,
+ rec->Data.MX.pNameExchange);
+}
+
+static GVariant *
+parse_dns_txt (DNS_RECORD *rec)
+{
+ GVariant *record;
+ GPtrArray *array;
+ DWORD i;
+
+ array = g_ptr_array_new ();
+ for (i = 0; i < rec->Data.TXT.dwStringCount; i++)
+ g_ptr_array_add (array, rec->Data.TXT.pStringArray[i]);
+ record = g_variant_new ("(@as)",
+ g_variant_new_strv ((const gchar **)array->pdata, array->len));
+ g_ptr_array_free (array, TRUE);
+ return record;
+}
+
+static WORD
+g_resolver_record_type_to_dnstype (GResolverRecordType type)
+{
+ switch (type)
+ {
+ case G_RESOLVER_RECORD_SRV:
+ return DNS_TYPE_SRV;
+ case G_RESOLVER_RECORD_TXT:
+ return DNS_TYPE_TEXT;
+ case G_RESOLVER_RECORD_SOA:
+ return DNS_TYPE_SOA;
+ case G_RESOLVER_RECORD_NS:
+ return DNS_TYPE_NS;
+ case G_RESOLVER_RECORD_MX:
+ return DNS_TYPE_MX;
+ }
+ g_return_val_if_reached (-1);
+}
+
+static GList *
+g_resolver_records_from_DnsQuery (const gchar *rrname,
+ WORD dnstype,
+ DNS_STATUS status,
+ DNS_RECORD *results,
+ GError **error)
+{
+ DNS_RECORD *rec;
+ gpointer record;
+ GList *records;
+
+ if (status != ERROR_SUCCESS)
+ {
+ GResolverError errnum;
+ const gchar *format;
+
+ if (status == DNS_ERROR_RCODE_NAME_ERROR)
+ {
+ errnum = G_RESOLVER_ERROR_NOT_FOUND;
+ format = _("No DNS record of the requested type for '%s'");
+ }
+ else if (status == DNS_ERROR_RCODE_SERVER_FAILURE)
+ {
+ errnum = G_RESOLVER_ERROR_TEMPORARY_FAILURE;
+ format = _("Temporarily unable to resolve '%s'");
+ }
+ else
+ {
+ errnum = G_RESOLVER_ERROR_INTERNAL;
+ format = _("Error resolving '%s'");
+ }
+
+ g_set_error (error, G_RESOLVER_ERROR, errnum, format, rrname);
+ return NULL;
+ }
+
+ records = NULL;
+ for (rec = results; rec; rec = rec->pNext)
+ {
+ if (rec->wType != dnstype)
+ continue;
+ switch (dnstype)
+ {
+ case DNS_TYPE_SRV:
+ record = parse_dns_srv (rec);
+ break;
+ case DNS_TYPE_SOA:
+ record = parse_dns_soa (rec);
+ break;
+ case DNS_TYPE_NS:
+ record = parse_dns_ns (rec);
+ break;
+ case DNS_TYPE_MX:
+ record = parse_dns_mx (rec);
+ break;
+ case DNS_TYPE_TEXT:
+ record = parse_dns_txt (rec);
+ break;
+ default:
+ g_warn_if_reached ();
+ record = NULL;
+ break;
+ }
+ if (record != NULL)
+ records = g_list_prepend (records, g_variant_ref_sink (record));
+ }
+
+ return records;
+}
+
+#endif
+
typedef struct {
char *rrname;
GResolverRecordType record_type;
LookupRecordsData *lrd = task_data;
GList *records;
GError *error = NULL;
+
#if defined(G_OS_UNIX)
gint len = 512;
gint herr;
GByteArray *answer;
gint rrtype;
- rrtype = _g_resolver_record_type_to_rrtype (lrd->record_type);
+ rrtype = g_resolver_record_type_to_rrtype (lrd->record_type);
answer = g_byte_array_new ();
for (;;)
{
* On overflow some res_query's return the length needed, others
* return the full length entered. This code works in either case.
*/
- }
+ }
herr = h_errno;
- records = _g_resolver_records_from_res_query (lrd->rrname, rrtype, answer->data, len, herr, &error);
+ records = g_resolver_records_from_res_query (lrd->rrname, rrtype, answer->data, len, herr, &error);
g_byte_array_free (answer, TRUE);
-#elif defined(G_OS_WIN32)
+#else
+
DNS_STATUS status;
DNS_RECORD *results = NULL;
WORD dnstype;
- dnstype = _g_resolver_record_type_to_dnstype (lrd->record_type);
+ dnstype = g_resolver_record_type_to_dnstype (lrd->record_type);
status = DnsQuery_A (lrd->rrname, dnstype, DNS_QUERY_STANDARD, NULL, &results, NULL);
- records = _g_resolver_records_from_DnsQuery (lrd->rrname, dnstype, status, results, &error);
+ records = g_resolver_records_from_DnsQuery (lrd->rrname, dnstype, status, results, &error);
if (results != NULL)
DnsRecordListFree (results, DnsFreeRecordList);
+
#endif
if (records)
- {
- g_task_return_pointer (task, records, (GDestroyNotify) free_records);
- }
+ g_task_return_pointer (task, records, (GDestroyNotify) free_records);
else
g_task_return_error (task, error);
}
resolver_class->lookup_records = lookup_records;
resolver_class->lookup_records_async = lookup_records_async;
resolver_class->lookup_records_finish = lookup_records_finish;
+
+ /* Initialize _g_resolver_addrinfo_hints */
+#ifdef AI_ADDRCONFIG
+ addrinfo_hints.ai_flags |= AI_ADDRCONFIG;
+#endif
+ /* These two don't actually matter, they just get copied into the
+ * returned addrinfo structures (and then we ignore them). But if
+ * we leave them unset, we'll get back duplicate answers.
+ */
+ addrinfo_hints.ai_socktype = SOCK_STREAM;
+ addrinfo_hints.ai_protocol = IPPROTO_TCP;
}
projects / platform / upstream / glib.git / commitdiff