accept4: Implement cancellation

.. and add proper prototype, move it into it's own obj and other such
cleanups.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/sys/socket.h b/include/sys/socket.h
index 0824fc855..5d38f1105 100644
--- a/include/sys/socket.h
+++ b/include/sys/socket.h
@@ -227,6 +227,15 @@ extern int accept (int __fd, __SOCKADDR_ARG __addr,
 		   socklen_t *__restrict __addr_len);
 libc_hidden_proto(accept)
 
+#ifdef __USE_GNU
+/* Similar to 'accept' but takes an additional parameter to specify flags.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int accept4 (int __fd, __SOCKADDR_ARG __addr,
+		    socklen_t *__restrict __addr_len, int __flags);
+#endif
+
 /* Shut down all or part of the connection open on socket FD.
    HOW determines what to shut down:
      SHUT_RD   = No more receptions;