X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fnetwork%2Fres_query.c;h=506dc231266d9e0795140782c05b8c91368f7ecb;hb=f897461d4fe72bb71854a6d0662de83008caccb7;hp=33543dcffab9eb1cfc52e07459eb4ba3c373b371;hpb=3fe595de83e398dbc3cdbe303cacaf8485c9ae08;p=musl

diff --git a/src/network/res_query.c b/src/network/res_query.c
index 33543dcf..506dc231 100644
--- a/src/network/res_query.c
+++ b/src/network/res_query.c
@@ -1,13 +1,26 @@
+#define _BSD_SOURCE
 #include <resolv.h>
 #include <netdb.h>
-#include "libc.h"
 
 int res_query(const char *name, int class, int type, unsigned char *dest, int len)
 {
 	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);
+	int r = __res_send(q, ql, dest, len);
+	if (r<12) {
+		h_errno = TRY_AGAIN;
+		return -1;
+	}
+	if ((dest[3] & 15) == 3) {
+		h_errno = HOST_NOT_FOUND;
+		return -1;
+	}
+	if ((dest[3] & 15) == 0 && !dest[6] && !dest[7]) {
+		h_errno = NO_DATA;
+		return -1;
+	}
+	return r;
 }
 
 weak_alias(res_query, res_search);