Update upstream source from tag 'upstream/4.7'

Update to upstream version '4.7'
with Debian dir d3e11463c915e5c39507206197eb3acd42bb8f5f

1 files changed, 16 insertions, 0 deletions

diff --git a/doc/socket_functions.rst b/doc/socket_functions.rst
new file mode 100644
index 0000000..fe2b69d
--- /dev/null
+++ b/doc/socket_functions.rst
@@ -0,0 +1,16 @@
+================
+Socket functions
+================
+
+.. code-block:: c
+
+	#include <libHX/socket.h>
+
+	int HX_socket_from_env(const struct addrinfo *ai, const char *intf);
+
+``HX_socket_from_env``
+	The function looks up the current process's file descriptors for a
+	socket that is listening and which matches the given addrinfo and
+	(optionally) intf if the latter is not NULL``. Upon success, the fd
+	number is returned, or -1 if no file descriptor matched. No errors are
+	signalled.