1 files changed, 22 insertions, 0 deletions
diff --git a/src/libskabus/skabus_pub_subunsub_async.c b/src/libskabus/skabus_pub_subunsub_async.c
new file mode 100644
index 0000000..d41ed98
--- /dev/null
+++ b/src/libskabus/skabus_pub_subunsub_async.c
@@ -0,0 +1,22 @@
+/* ISC license. */
+
+#include <string.h>
+#include <sys/uio.h>
+#include <errno.h>
+
+#include <skalibs/skaclient.h>
+
+#include <skabus/pub.h>
+
+int skabus_pub_subunsub_async (skabus_pub_t *a, char what, char const *id, unsigned char *err)
+{
+  size_t idlen = strlen(id) ;
+  char pack[2] = { what, (unsigned char)idlen } ;
+  struct iovec v[2] =
+  {
+    { .iov_base = pack, .iov_len = 2 },
+    { .iov_base = (char *)id, .iov_len = idlen+1 }
+  } ;
+  if (idlen > SKABUS_PUB_IDSTR_SIZE) return (errno = ERANGE, 0) ;
+  return skaclient_putv(&a->connection, v, 2, &skaclient_default_cb, err) ;
+}