Update s_client and s_server documentation about some missing arguments

Reviewed-by: NMatt Caswell <matt@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1837)

apps/s_client.c

@@ -567,7 +567,7 @@ const OPTIONS s_client_options[] = {
     {"proxy", OPT_PROXY, 's',
      "Connect to via specified proxy to the real server"},
 #ifdef AF_UNIX
-    {"unix", OPT_UNIX, 's', "Connect over unix domain sockets"},
+    {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
 #endif
     {"4", OPT_4, '-', "Use IPv4 only"},
 #ifdef AF_INET6

apps/s_server.c

@@ -684,7 +684,7 @@ const OPTIONS s_server_options[] = {
     {"port", OPT_PORT, 'p',
      "TCP/IP port to listen on for connections (default is " PORT ")"},
     {"accept", OPT_ACCEPT, 's',
-     "TCP/IP optional host and port to accept on (default is " PORT ")"},
+     "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"},
 #ifdef AF_UNIX
     {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"},
 #endif

doc/man1/s_client.pod

@@ -10,6 +10,9 @@ B<openssl> B<s_client>
 [B<-help>]
 [B<-connect host:port>]
 [B<-proxy host:port>]
+[B<-unix path>]
+[B<-4>]
+[B<-6>]
 [B<-servername name>]
 [B<-verify depth>]
 [B<-verify_return_error>]
@@ -132,6 +135,18 @@ When used with the B<-connect> flag, the program uses the host and port
 specified with this flag and issues an HTTP CONNECT command to connect
 to the desired server.
 
+=item B<-unix path>
+
+Connect over the specified Unix-domain socket.
+
+=item B<-4>
+
+Use IPv4 only.
+
+=item B<-6>
+
+Use IPv6 only.
+
 =item B<-servername name>
 
 Set the TLS SNI (Server Name Indication) extension in the ClientHello message.

doc/man1/s_server.pod

@@ -8,8 +8,13 @@ s_server - SSL/TLS server program
 
 B<openssl> B<s_server>
 [B<-help>]
-[B<-accept port>]
+[B<-port port>]
+[B<-accept val>]
 [B<-naccept count>]
+[B<-unix val>]
+[B<-unlink>]
+[B<-4>]
+[B<-6>]
 [B<-context id>]
 [B<-verify depth>]
 [B<-Verify depth>]
@@ -125,14 +130,34 @@ manual page.
 
 Print out a usage message.
 
-=item B<-accept port>
+=item B<-port port>
 
 The TCP port to listen on for connections. If not specified 4433 is used.
 
+=item B<-accept val>
+
+The optional TCP host and port to listen on for connections. If not specified, *:4433 is used.
+
 =item B<-naccept count>
 
 The server will exit after receiving B<number> connections, default unlimited.
 
+=item B<-unix val>
+
+Unix domain socket to accept on.
+
+=item B<-unlink>
+
+For -unix, unlink existing socket first.
+
+=item B<-4>
+
+Use IPv4 only.
+
+=item B<-6>
+
+Use IPv6 only.
+
 =item B<-context id>
 
 Sets the SSL context id. It can be given any string value. If this option