# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1475499505 -10800
# Node ID cebf5fed00bf2ccc7d314ac91941560d672d2896
# Parent  bdf64ae3376b5cc9bbc594f6bb1f83a3c9c8baf2
Modules compatibility: removed unneeded IPV6_V6ONLY checks.

The IPV6_V6ONLY macro is now checked only while parsing appropriate flag
and when using the macro.

The ipv6only field in listen structures is always initialized to 1,
even if not supported on a given platform.  This is expected to prevent
a module compiled without IPV6_V6ONLY from accidentally creating dual
sockets if loaded into main binary with proper IPV6_V6ONLY support.

diff --git a/src/core/ngx_connection.h b/src/core/ngx_connection.h
--- a/src/core/ngx_connection.h
+++ b/src/core/ngx_connection.h
@@ -66,7 +66,7 @@ struct ngx_listening_s {
     unsigned            addr_ntop:1;
     unsigned            wildcard:1;
 
-#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
+#if (NGX_HAVE_INET6)
     unsigned            ipv6only:1;
 #endif
 #if (NGX_HAVE_REUSEPORT)
diff --git a/src/core/ngx_module.h b/src/core/ngx_module.h
--- a/src/core/ngx_module.h
+++ b/src/core/ngx_module.h
@@ -71,11 +71,7 @@
 #define NGX_MODULE_SIGNATURE_8   "0"
 #endif
 
-#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
 #define NGX_MODULE_SIGNATURE_9   "1"
-#else
-#define NGX_MODULE_SIGNATURE_9   "0"
-#endif
 
 #if (NGX_HAVE_REUSEPORT)
 #define NGX_MODULE_SIGNATURE_10  "1"
diff --git a/src/http/ngx_http.c b/src/http/ngx_http.c
--- a/src/http/ngx_http.c
+++ b/src/http/ngx_http.c
@@ -1756,7 +1756,7 @@ ngx_http_add_listening(ngx_conf_t *cf, n
     ls->deferred_accept = addr->opt.deferred_accept;
 #endif
 
-#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
+#if (NGX_HAVE_INET6)
     ls->ipv6only = addr->opt.ipv6only;
 #endif
 
diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -3939,7 +3939,7 @@ ngx_http_core_listen(ngx_conf_t *cf, ngx
     lsopt.fastopen = -1;
 #endif
     lsopt.wildcard = u.wildcard;
-#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
+#if (NGX_HAVE_INET6)
     lsopt.ipv6only = 1;
 #endif
 
diff --git a/src/http/ngx_http_core_module.h b/src/http/ngx_http_core_module.h
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -69,7 +69,7 @@ typedef struct {
     unsigned                   ssl:1;
 #endif
     unsigned                   http2:1;
-#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
+#if (NGX_HAVE_INET6)
     unsigned                   ipv6only:1;
 #endif
 #if (NGX_HAVE_REUSEPORT)
diff --git a/src/mail/ngx_mail.c b/src/mail/ngx_mail.c
--- a/src/mail/ngx_mail.c
+++ b/src/mail/ngx_mail.c
@@ -341,7 +341,7 @@ ngx_mail_optimize_servers(ngx_conf_t *cf
             ls->keepcnt = addr[i].opt.tcp_keepcnt;
 #endif
 
-#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
+#if (NGX_HAVE_INET6)
             ls->ipv6only = addr[i].opt.ipv6only;
 #endif
 
diff --git a/src/mail/ngx_mail.h b/src/mail/ngx_mail.h
--- a/src/mail/ngx_mail.h
+++ b/src/mail/ngx_mail.h
@@ -38,7 +38,7 @@ typedef struct {
 #if (NGX_MAIL_SSL)
     unsigned                ssl:1;
 #endif
-#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
+#if (NGX_HAVE_INET6)
     unsigned                ipv6only:1;
 #endif
     unsigned                so_keepalive:2;
diff --git a/src/mail/ngx_mail_core_module.c b/src/mail/ngx_mail_core_module.c
--- a/src/mail/ngx_mail_core_module.c
+++ b/src/mail/ngx_mail_core_module.c
@@ -353,7 +353,7 @@ ngx_mail_core_listen(ngx_conf_t *cf, ngx
     ls->wildcard = u.wildcard;
     ls->ctx = cf->ctx;
 
-#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
+#if (NGX_HAVE_INET6)
     ls->ipv6only = 1;
 #endif
 
diff --git a/src/stream/ngx_stream.c b/src/stream/ngx_stream.c
--- a/src/stream/ngx_stream.c
+++ b/src/stream/ngx_stream.c
@@ -506,7 +506,7 @@ ngx_stream_optimize_servers(ngx_conf_t *
             ls->keepcnt = addr[i].opt.tcp_keepcnt;
 #endif
 
-#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
+#if (NGX_HAVE_INET6)
             ls->ipv6only = addr[i].opt.ipv6only;
 #endif
 
diff --git a/src/stream/ngx_stream.h b/src/stream/ngx_stream.h
--- a/src/stream/ngx_stream.h
+++ b/src/stream/ngx_stream.h
@@ -52,7 +52,7 @@ typedef struct {
 #if (NGX_STREAM_SSL)
     unsigned                       ssl:1;
 #endif
-#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
+#if (NGX_HAVE_INET6)
     unsigned                       ipv6only:1;
 #endif
 #if (NGX_HAVE_REUSEPORT)
diff --git a/src/stream/ngx_stream_core_module.c b/src/stream/ngx_stream_core_module.c
--- a/src/stream/ngx_stream_core_module.c
+++ b/src/stream/ngx_stream_core_module.c
@@ -624,7 +624,7 @@ ngx_stream_core_listen(ngx_conf_t *cf, n
     ls->wildcard = u.wildcard;
     ls->ctx = cf->ctx;
 
-#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
+#if (NGX_HAVE_INET6)
     ls->ipv6only = 1;
 #endif