From 244efb6e50a2b084096f44587acfe84144821818 Mon Sep 17 00:00:00 2001
From: hniksic <devnull@localhost>
Date: Tue, 11 Nov 2003 13:48:35 -0800
Subject: [PATCH] [svn] Added (currently no-op) -4 and -6.

---
 src/ChangeLog |  4 ++++
 src/host.c    | 18 +++++++++---------
 src/init.c    |  4 ++++
 src/main.c    |  8 +++++++-
 src/options.h |  5 +++++
 5 files changed, 29 insertions(+), 10 deletions(-)

diff --git a/src/ChangeLog b/src/ChangeLog
index c8486ce9..bf6919b3 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2003-11-11  Hrvoje Niksic  <hniksic@xemacs.org>
+
+	* main.c: Added options --inet4-only and --inet6-only.
+
 2003-11-11  Hrvoje Niksic  <hniksic@xemacs.org>
 
 	* host.c (host_errstr): Use the more standard message "Unknown
diff --git a/src/host.c b/src/host.c
index 7bc5b2f7..3e29ad98 100644
--- a/src/host.c
+++ b/src/host.c
@@ -81,13 +81,6 @@ extern int h_errno;
 /* Mapping between known hosts and to lists of their addresses. */
 
 static struct hash_table *host_name_addresses_map;
-
-#ifdef ENABLE_IPV6
-/* The IP family to request when connecting to remote hosts.  This
-   should be moved to an entry in struct options when we implement the
-   --inet4/--inet6 flags.  */
-static int requested_family = AF_UNSPEC;
-#endif
 
 /* Lists of addresses.  This should eventually be extended to handle
    IPv6.  */
@@ -537,7 +530,8 @@ lookup_host (const char *host, int silent)
 
     xzero (hints);
     hints.ai_socktype = SOCK_STREAM;
-    hints.ai_family = requested_family;
+    hints.ai_family = AF_UNSPEC; /* #### should look at opt.ipv4_only
+				    and opt.ipv6_only */
     hints.ai_flags = 0;
 
     err = getaddrinfo_with_timeout (host, NULL, &hints, &res, opt.dns_timeout);
@@ -550,6 +544,11 @@ lookup_host (const char *host, int silent)
       }
     al = address_list_from_addrinfo (res);
     freeaddrinfo (res);
+    if (!al)
+      {
+	logprintf (LOG_VERBOSE, _("failed: No IPv4/IPv6 addresses.\n"));
+	return NULL;
+      }
   }
 #else
   {
@@ -619,7 +618,8 @@ lookup_host_passive (const char *host)
 
   xzero (hints);
   hints.ai_socktype = SOCK_STREAM;
-  hints.ai_family = requested_family;
+  hints.ai_family = AF_UNSPEC;	/* #### should look at opt.ipv4_only
+				   and opt.ipv6_only */
   hints.ai_flags = AI_PASSIVE;
 
   err = getaddrinfo (host, NULL, &hints, &res);
diff --git a/src/init.c b/src/init.c
index abafecdd..182c0648 100644
--- a/src/init.c
+++ b/src/init.c
@@ -167,6 +167,10 @@ static struct {
   { "ignoretags",	&opt.ignore_tags,	cmd_vector },
   { "includedirectories", &opt.includes,	cmd_directory_vector },
   { "input",		&opt.input_filename,	cmd_file },
+#ifdef ENABLE_IPV6
+  { "inet4only",	&opt.ipv4_only,		cmd_boolean },
+  { "inet6only",	&opt.ipv6_only,		cmd_boolean },
+#endif
   { "keepsessioncookies", &opt.keep_session_cookies, cmd_boolean },
   { "killlonger",	&opt.kill_longer,	cmd_boolean },
   { "limitrate",	&opt.limit_rate,	cmd_bytes },
diff --git a/src/main.c b/src/main.c
index 2cddd239..eb6570ab 100644
--- a/src/main.c
+++ b/src/main.c
@@ -194,6 +194,8 @@ struct cmdline_option option_data[] =
     { "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
     { "ignore-tags", 0, OPT_VALUE, "ignoretags", -1 },
     { "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
+    { "inet4-only", '4', OPT_BOOLEAN, "inet4only", -1 },
+    { "inet6-only", '6', OPT_BOOLEAN, "inet6only", -1 },
     { "input-file", 'i', OPT_VALUE, "input", -1 },
     { "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
     { "level", 'l', OPT_VALUE, "reclevel", -1 },
@@ -396,7 +398,7 @@ Logging and input file:\n"),
     N_("\
   -v,  --verbose             be verbose (this is the default).\n"),
     N_("\
-  -nv, --non-verbose         turn off verboseness, without being quiet.\n"),
+  -nv, --no-verbose         turn off verboseness, without being quiet.\n"),
     N_("\
   -i,  --input-file=FILE     download URLs found in FILE.\n"),
     N_("\
@@ -453,6 +455,10 @@ Download:\n"),
        --dns-cache=off           disable caching DNS lookups.\n"),
     N_("\
        --restrict-file-names=OS  restrict chars in file names to ones OS allows.\n"),
+    N_("\
+  -4,  --inet4-only              connect only to IPv4 addresses.\n"),
+    N_("\
+  -6,  --inet6-only              connect only to IPv6 addresses.\n"),
     "\n",
 
     N_("\
diff --git a/src/options.h b/src/options.h
index e107fb09..00d89c34 100644
--- a/src/options.h
+++ b/src/options.h
@@ -199,6 +199,11 @@ struct options
 
   int preserve_perm;           /* whether remote permissions are used
 				  or that what is set by umask. */
+
+#ifdef ENABLE_IPV6
+  int ipv4_only;		/* IPv4 connections have been requested. */
+  int ipv6_only;		/* IPv4 connections have been requested. */
+#endif
 };
 
 extern struct options opt;
-- 
2.39.2