src/libs6/s6_fdholder_retrieve_async.c


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/* ISC license. */

#include <sys/uio.h>
#include <string.h>
#include <errno.h>
#include <skalibs/unixmessage.h>
#include <s6/s6-fdholder.h>

int s6_fdholder_retrieve_maybe_delete_async (s6_fdholder_t *a, char const *id, int dodelete)
{
  size_t idlen = strlen(id) ;
  char pack[3] = "R" ;
  struct iovec v[2] = { { .iov_base = pack, .iov_len = 3 }, { .iov_base = (char *)id, .iov_len = idlen + 1 } } ;
  unixmessage_v_t m = { .v = v, .vlen = 2, .fds = 0, .nfds = 0 } ;
  if (idlen > S6_FDHOLDER_ID_SIZE) return (errno = ENAMETOOLONG, 0) ;
  pack[1] = !!dodelete ;
  pack[2] = (unsigned char)idlen ;
  return unixmessage_putv(&a->connection.out, &m) ;
}