Initial commit

1 files changed, 23 insertions, 0 deletions

diff --git a/src/skadns/skadns_cancel.c b/src/skadns/skadns_cancel.c
new file mode 100644
index 0000000..13db918
--- /dev/null
+++ b/src/skadns/skadns_cancel.c
@@ -0,0 +1,23 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/uint16.h>
+#include <skalibs/error.h>
+#include <skalibs/tai.h>
+#include <skalibs/gensetdyn.h>
+#include <skalibs/skaclient.h>
+#include <s6-dns/skadns.h>
+
+int skadns_cancel (skadns_t *a, uint16 id, tain_t const *deadline, tain_t *stamp)
+{
+  char pack[3] = "--q" ;
+  char err ;
+  register skadnsanswer_t *p = GENSETDYN_P(skadnsanswer_t, &a->q, id) ;
+  if (!error_isagain(p->status)) return skadns_release(a, id) ;
+  uint16_pack_big(pack, id) ;
+  if (!skaclient_send(&a->connection, pack, 3, &skaclient_default_cb, &err, deadline, stamp)) return 0 ;
+  if (!err) return gensetdyn_delete(&a->q, id) ;
+  if (err != ENOENT) return (errno = err, 0) ;
+  p->status = ECANCELED ;
+  return 1 ;
+}