5 int __res_mkquery(int op, const char *dname, int class, int type,
6 const unsigned char *data, int datalen,
7 const unsigned char *newrr, unsigned char *buf, int buflen)
12 size_t l = strnlen(dname, 255);
15 if (l && dname[l-1]=='.') l--;
17 if (l>253 || buflen<n || op>15u || class>255u || type>255u)
20 /* Construct query template - ID will be filled later */
24 memcpy((char *)q+13, dname, l);
25 for (i=13; q[i]; i=j+1) {
26 for (j=i; q[j] && q[j] != '.'; j++);
27 if (j-i-1u > 62u) return -1;
33 /* Make a reasonably unpredictable id */
34 clock_gettime(CLOCK_REALTIME, &ts);
35 id = ts.tv_nsec + ts.tv_nsec/65536UL & 0xffff;
43 weak_alias(__res_mkquery, res_mkquery);