1 files changed, 25 insertions, 0 deletions
diff --git a/src/libstddjb/socket_waitconn.c b/src/libstddjb/socket_waitconn.c
new file mode 100644
index 0000000..6e5c352
--- /dev/null
+++ b/src/libstddjb/socket_waitconn.c
@@ -0,0 +1,25 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/allreadwrite.h>
+#include <skalibs/tai.h>
+#include <skalibs/iopause.h>
+#include <skalibs/socket.h>
+
+int socket_waitconn (int s, tain_t const *deadline, tain_t *stamp)
+{
+  iopause_fd x = { s, IOPAUSE_WRITE, 0 } ;
+  for (;;)
+  {
+    register int r = iopause_stamp(&x, 1, deadline, stamp) ;
+    if (r < 0) return 0 ;
+    if (!r) return (errno = ETIMEDOUT, 0) ;
+    if (x.revents & IOPAUSE_WRITE) break ;
+    if (x.revents & IOPAUSE_EXCEPT)
+    {
+      fd_write(s, "", 1) ; /* sets errno */
+      return 0 ;
+    }
+  }
+  return socket_connected(s) ;
+}