Add textclient, fix some textmessage issues

1 files changed, 30 insertions, 0 deletions

diff --git a/src/libunixonacid/textclient_server_init_frompipe.c b/src/libunixonacid/textclient_server_init_frompipe.c
new file mode 100644
index 0000000..fb85b44
--- /dev/null
+++ b/src/libunixonacid/textclient_server_init_frompipe.c
@@ -0,0 +1,30 @@
+/* ISC license. */
+
+#include <sys/uio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <skalibs/types.h>
+#include <skalibs/error.h>
+#include <skalibs/allreadwrite.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/textmessage.h>
+#include <skalibs/textclient.h>
+
+int textclient_server_init_frompipe (textmessage_receiver_t *in, textmessage_sender_t *syncout, textmessage_sender_t *asyncout, char const *before, size_t beforelen, char const *after, size_t afterlen, tain_t const *deadline, tain_t *stamp)
+{
+  struct iovec v ;
+  unsigned int asyncfd ;
+  char *x = getenv(SKALIBS_CHILD_SPAWN_FDS_ENVVAR) ;
+  if (!x
+   || !uint0_scan(x, &asyncfd)
+   || asyncfd == textmessage_sender_fd(syncout)
+   || asyncfd == textmessage_receiver_fd(in)) return (errno = EPROTO, 0) ;
+  if (sanitize_read(textmessage_timed_receive(in, &v, deadline, stamp)) <= 0) return 0 ;
+  if (v.iov_len != beforelen || memcmp(v.iov_base, before, beforelen)) return (errno = EPROTO, 0) ;
+  if (fcntl(asyncfd, F_GETFD) < 0) return 0 ;
+  if (!textmessage_timed_send(syncout, after, afterlen, deadline, stamp)) return 0 ;
+  textmessage_sender_init(asyncout, asyncfd) ;
+  if (!textmessage_timed_send(asyncout, after, afterlen, deadline, stamp)) return 0 ;
+  return 1 ;
+}