Blame SOURCES/openssl-1.1.1-detected-addr-ipv6.patch

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diff -up openssl-1.1.1k/apps/s_socket.c.addr-ipv6 openssl-1.1.1k/apps/s_socket.c
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--- openssl-1.1.1k/apps/s_socket.c.addr-ipv6	2021-07-16 15:14:08.491986682 +0200
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+++ openssl-1.1.1k/apps/s_socket.c	2021-07-16 15:23:21.271329197 +0200
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@@ -214,6 +214,8 @@ int do_server(int *accept_sock, const ch
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     const BIO_ADDRINFO *next;
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     int sock_family, sock_type, sock_protocol, sock_port;
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     const BIO_ADDR *sock_address;
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+    int sock_family_fallback = AF_UNSPEC;
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+    const BIO_ADDR *sock_address_fallback = NULL;
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     int sock_options = BIO_SOCK_REUSEADDR;
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     int ret = 0;
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@@ -244,6 +246,10 @@ int do_server(int *accept_sock, const ch
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             && BIO_ADDRINFO_protocol(next) == sock_protocol) {
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         if (sock_family == AF_INET
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                 && BIO_ADDRINFO_family(next) == AF_INET6) {
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+            /* In case AF_INET6 is returned but not supported by the
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+             * kernel, retry with the first detected address family */
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+            sock_family_fallback = sock_family;
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+            sock_address_fallback = sock_address;
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             sock_family = AF_INET6;
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             sock_address = BIO_ADDRINFO_address(next);
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         } else if (sock_family == AF_INET6
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@@ -253,6 +259,10 @@ int do_server(int *accept_sock, const ch
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     }
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     asock = BIO_socket(sock_family, sock_type, sock_protocol, 0);
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+	if (asock == INVALID_SOCKET && sock_family_fallback != AF_UNSPEC) {
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+       asock = BIO_socket(sock_family_fallback, sock_type, sock_protocol, 0);
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+       sock_address = sock_address_fallback;
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+	}
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     if (asock == INVALID_SOCKET
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         || !BIO_listen(asock, sock_address, sock_options)) {
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         BIO_ADDRINFO_free(res);