1 files changed, 20 insertions, 0 deletions
diff --git a/src/libs6/s6_fdholder_store_async.c b/src/libs6/s6_fdholder_store_async.c
new file mode 100644
index 0000000..dfaab05
--- /dev/null
+++ b/src/libs6/s6_fdholder_store_async.c
@@ -0,0 +1,20 @@
+ /* ISC license. */
+
+#include <errno.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/tai.h>
+#include <skalibs/siovec.h>
+#include <skalibs/unixmessage.h>
+#include <s6/s6-fdholder.h>
+
+int s6_fdholder_store_async (s6_fdholder_t *a, int fd, char const *id, tain_t const *limit)
+{
+  unsigned int idlen = str_len(id) ;
+  char pack[2 + TAIN_PACK] = "S" ;
+  siovec_t v[2] = { { .s = pack, .len = 2 + TAIN_PACK }, { .s = id, .len = idlen + 1 } } ;
+  unixmessage_v_t m = { .v = v, .vlen = 2, .fds = &fd, .nfds = 1 } ;
+  if (idlen > S6_FDHOLDER_ID_SIZE) return (errno = ENAMETOOLONG, 0) ;
+  pack[1] = (unsigned char)idlen ;
+  tain_pack(pack + 2, limit) ;
+  return unixmessage_putv(&a->connection.out, &m) ;
+}