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-rw-r--r--doc/ref/posix.texi17
-rw-r--r--libguile/socket.c2
2 files changed, 18 insertions, 1 deletions
diff --git a/doc/ref/posix.texi b/doc/ref/posix.texi
index 7633bd5a3..50085cd80 100644
--- a/doc/ref/posix.texi
+++ b/doc/ref/posix.texi
@@ -2524,7 +2524,22 @@ Make an IPv4 Internet address by combining the network number
@cindex IPv6
An IPv6 Internet address is a 16-byte value, represented in Guile as
-an integer in host byte order, so that say ``::1'' is 1.
+an integer in host byte order, so that say ``::1'' is 1. The following
+constants are defined for convenience.
+
+@defvar IN6ADDR_ANY
+For a server, this can be used with @code{bind} (@pxref{Network Sockets
+and Communication}) to allow connections from any IPv6 interface on the
+machine.
+@end defvar
+
+@defvar IN6ADDR_LOOPBACK
+The address of the local host using the loopback device, ie.@:
+@samp{::1}.
+@end defvar
+
+The procedures below convert an IPv6 @emph{or} an IPv4 address to and
+from its textual representation.
@deffn {Scheme Procedure} inet-ntop family address
@deffnx {C Function} scm_inet_ntop (family, address)
diff --git a/libguile/socket.c b/libguile/socket.c
index 4818d62bd..3d5b89e63 100644
--- a/libguile/socket.c
+++ b/libguile/socket.c
@@ -1656,6 +1656,7 @@ scm_init_socket ()
/* standard addresses. */
#ifdef INADDR_ANY
scm_c_define ("INADDR_ANY", scm_from_ulong (INADDR_ANY));
+ scm_c_define ("IN6ADDR_ANY", scm_from_ulong (0));
#endif
#ifdef INADDR_BROADCAST
scm_c_define ("INADDR_BROADCAST", scm_from_ulong (INADDR_BROADCAST));
@@ -1665,6 +1666,7 @@ scm_init_socket ()
#endif
#ifdef INADDR_LOOPBACK
scm_c_define ("INADDR_LOOPBACK", scm_from_ulong (INADDR_LOOPBACK));
+ scm_c_define ("IN6ADDR_LOOPBACK", scm_from_ulong (1));
#endif
/* socket types.