-hdr = pdkim_headcat(&col, hdr, &hdr_size, &hdr_len, US";", US"a=",
- dkim_sig_to_a_tag(sig));
-hdr = pdkim_headcat(&col, hdr, &hdr_size, &hdr_len, US";", US"q=",
- pdkim_querymethods[sig->querymethod]);
-hdr = pdkim_headcat(&col, hdr, &hdr_size, &hdr_len, US";", US"c=",
- canon_all);
-hdr = pdkim_headcat(&col, hdr, &hdr_size, &hdr_len, US";", US"d=",
- sig->domain);
-hdr = pdkim_headcat(&col, hdr, &hdr_size, &hdr_len, US";", US"s=",
- sig->selector);
+hdr = pdkim_headcat(&col, hdr, US";", US"a=", dkim_sig_to_a_tag(sig));
+hdr = pdkim_headcat(&col, hdr, US";", US"q=", pdkim_querymethods[sig->querymethod]);
+hdr = pdkim_headcat(&col, hdr, US";", US"c=", canon_all->s);
+hdr = pdkim_headcat(&col, hdr, US";", US"d=", sig->domain);
+hdr = pdkim_headcat(&col, hdr, US";", US"s=", sig->selector);