Add the TCP_FUNCTION_BLK and TCP_FUNCTION_ALIAS socket options

For FreeBSD only

(backport <rust-lang#4047>)
(cherry picked from commit 2e8be88)

Author: asomers

libc-test/build.rs

@@ -2585,6 +2585,9 @@ fn test_freebsd(target: &str) {
             // FIXME: The values has been changed in FreeBSD 15:
             "CLOCK_BOOTTIME" if Some(15) <= freebsd_ver => true,
 
+            // Added in FreeBSD 14.0
+            "TCP_FUNCTION_ALIAS" if Some(14) > freebsd_ver => true,
+
             _ => false,
         }
     });

libc-test/semver/freebsd.txt

@@ -1505,6 +1505,8 @@ TCP_DELACK
 TCP_FASTOPEN
 TCP_FASTOPEN_PSK_LEN
 TCP_FIN_IS_RST
+TCP_FUNCTION_ALIAS
+TCP_FUNCTION_BLK
 TCP_FUNCTION_NAME_LEN_MAX
 TCP_IDLE_REDUCE
 TCP_INFO

src/unix/bsd/freebsdlike/freebsd/mod.rs

@@ -3895,6 +3895,8 @@ pub const TCP_KEEPINIT: ::c_int = 128;
 pub const TCP_FASTOPEN: ::c_int = 1025;
 pub const TCP_PCAP_OUT: ::c_int = 2048;
 pub const TCP_PCAP_IN: ::c_int = 4096;
+pub const TCP_FUNCTION_BLK: ::c_int = 8192;
+pub const TCP_FUNCTION_ALIAS: ::c_int = 8193;
 pub const TCP_FASTOPEN_PSK_LEN: ::c_int = 16;
 pub const TCP_FUNCTION_NAME_LEN_MAX: ::c_int = 32;