Add a "fork" of musl as //fusl.

fusl/src/network/res_querydomain.c

+#include <resolv.h>
+#include <string.h>
+
+int res_querydomain(const char *name, const char *domain, int class, int type, unsigned char *dest, int len)
+{
+        char tmp[255];
+        size_t nl = strnlen(name, 255);
+        size_t dl = strnlen(domain, 255);
+        if (nl+dl+1 > 254) return -1;
+        memcpy(tmp, name, nl);
+        tmp[nl] = '.';
+        memcpy(tmp+nl+1, domain, dl+1);
+        return res_query(tmp, class, type, dest, len);
+}