Initial commit

1 files changed, 41 insertions, 0 deletions

diff --git a/src/skadns/skadns_send.c b/src/skadns/skadns_send.c
new file mode 100644
index 0000000..7ee04c7
--- /dev/null
+++ b/src/skadns/skadns_send.c
@@ -0,0 +1,41 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/uint16.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/siovec.h>
+#include <skalibs/tai.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/gensetdyn.h>
+#include <skalibs/skaclient.h>
+#include <s6-dns/s6dns-domain.h>
+#include <s6-dns/skadns.h>
+
+static skadnsanswer_t const skadnsanswer_initial = { .status = EAGAIN, .data = 0, .len = 0 } ;
+
+int skadns_send (skadns_t *a, uint16 *u, s6dns_domain_t const *d, uint16 qtype, tain_t const *limit, tain_t const *deadline, tain_t *stamp)
+{
+  unsigned int i ;
+  char tmp[17] = "--Q" ;
+  char err ;
+  siovec_t v[2] = { { .s = tmp, .len = 17 }, { .s = d->s, .len = d->len } } ;
+  if (!gensetdyn_new(&a->q, &i)) return 0 ;
+  uint16_pack_big(tmp, (uint16)i) ;
+  uint16_pack_big(tmp + 3, qtype) ;
+  if (limit) tain_pack(tmp + 5, limit) ; else byte_zero(tmp + 5, 12) ;
+  if (!skaclient_sendv(&a->connection, v, 2, &skaclient_default_cb, &err, deadline, stamp))
+  {
+    register int e = errno ;
+    gensetdyn_delete(&a->q, i) ;
+    errno = e ;
+    return 0 ;
+  }
+  if (err)
+  {
+    gensetdyn_delete(&a->q, i) ;
+    return (errno = err, 0) ;
+  }
+  *GENSETDYN_P(skadnsanswer_t, &a->q, i) = skadnsanswer_initial ;
+  *u = i ;
+  return 1 ;
+}