implement new dns backend, res_send and other legacy resolver functions

[musl] / src / network / res_query.c

diff --git a/src/network/res_query.c b/src/network/res_query.c
index 3847da3..2b4e4bb 100644 (file)
--- a/src/network/res_query.c
+++ b/src/network/res_query.c
@@ -1,25 +1,17 @@
-#define _GNU_SOURCE
 #include <resolv.h>
 #include <netdb.h>
-#include "__dns.h"
 #include "libc.h"
 
-int res_query(const char *name, int class, int type, unsigned char *dest, int len)
+int __res_mkquery(int, const char *, int, int, const unsigned char *, int, const unsigned char*, unsigned char *, int);
+int __res_send(const unsigned char *, int, unsigned char *, int);
+
+int __res_query(const char *name, int class, int type, unsigned char *dest, int len)
 {
-       if (class != 1 || len < 512)
-               return -1;
-       switch(__dns_doqueries(dest, name, &type, 1)) {
-       case EAI_NONAME:
-               h_errno = HOST_NOT_FOUND;
-               return -1;
-       case EAI_AGAIN:
-               h_errno = TRY_AGAIN;
-               return -1;
-       case EAI_FAIL:
-               h_errno = NO_RECOVERY;
-               return -1;
-       }
-       return 512;
+       unsigned char q[280];
+       int ql = __res_mkquery(0, name, class, type, 0, 0, 0, q, sizeof q);
+       if (ql < 0) return ql;
+       return __res_send(q, ql, dest, len);
 }
 
-weak_alias(res_query, res_search);
+weak_alias(__res_query, res_query);
+weak_alias(__res_query, res_search);