resolver: fixed uninitialised var

src/ostypes.h

@@ -30,8 +30,11 @@ typedef unsigned short int uint16_t;
 typedef unsigned int uint32_t;
 typedef unsigned __int64 uint64_t; 
 
+#ifndef UINT16_MAX
+#define UINT16_MAX ((uint16_t)0xffff)
+#endif /* UINT16_MAX */
 #ifndef UINT32_MAX
-#define UINT32_MAX 0xffffffff
+#define UINT32_MAX ((uint32_t)0xffffffff)
 #endif /* UINT32_MAX */
 #ifndef SIZE_MAX
 #define SIZE_MAX UINT32_MAX

src/resolver.c

@@ -157,6 +157,7 @@ int resolver_srv_lookup_buf(const unsigned char *buf, size_t len,
      * RFC2052: A client MUST attempt to contact the target host
      * with the lowest-numbered priority it can reach.
      */
+    priority_min = UINT16_MAX;
     for (i = 0; i < header.ancount; ++i) {
         name_len = message_name_len(buf, len, j);
         j += name_len;