net: ipv6 support, merge unix+ip;[pack:x] attribute (#9904)

vlib/net/address_test.v

@@ -0,0 +1,98 @@
+module net
+
+$if windows {
+	$if msvc {
+		// Force these to be included before afunix!
+		#include <winsock2.h>
+		#include <ws2tcpip.h>
+		#include <afunix.h>
+	} $else {
+		#include "@VROOT/vlib/net/afunix.h"
+	}
+} $else {
+	#include <sys/un.h>
+}
+
+fn test_diagnostics() {
+	dump(net.aoffset)
+	eprintln('--------')
+	in6 := C.sockaddr_in6{}
+	our_ip6 := Ip6{}
+	$if macos {
+		dump(__offsetof(C.sockaddr_in6, sin6_len))
+	}
+	dump(__offsetof(C.sockaddr_in6, sin6_family))
+	dump(__offsetof(C.sockaddr_in6, sin6_port))
+	dump(__offsetof(C.sockaddr_in6, sin6_addr))
+	$if macos {
+		dump(sizeof(in6.sin6_len))
+	}
+	dump(sizeof(in6.sin6_family))
+	dump(sizeof(in6.sin6_port))
+	dump(sizeof(in6.sin6_addr))
+	dump(sizeof(in6))
+	eprintln('')
+	dump(__offsetof(Ip6, port))
+	dump(__offsetof(Ip6, addr))
+	dump(sizeof(our_ip6.port))
+	dump(sizeof(our_ip6.addr))
+	dump(sizeof(our_ip6))
+	eprintln('--------')
+	in4 := C.sockaddr_in{}
+	our_ip4 := Ip{}
+	$if macos {
+		dump(__offsetof(C.sockaddr_in, sin_len))
+	}
+	dump(__offsetof(C.sockaddr_in, sin_family))
+	dump(__offsetof(C.sockaddr_in, sin_port))
+	dump(__offsetof(C.sockaddr_in, sin_addr))
+	$if macos {
+		dump(sizeof(in4.sin_len))
+	}
+	dump(sizeof(in4.sin_family))
+	dump(sizeof(in4.sin_port))
+	dump(sizeof(in4.sin_addr))
+	dump(sizeof(in4))
+	eprintln('')
+	dump(__offsetof(Ip, port))
+	dump(__offsetof(Ip, addr))
+	dump(sizeof(our_ip4.port))
+	dump(sizeof(our_ip4.addr))
+	dump(sizeof(our_ip4))
+	eprintln('--------')
+	dump(__offsetof(C.sockaddr_un, sun_path))
+	dump(__offsetof(Unix, path))
+	eprintln('--------')
+}
+
+fn test_sizes_unix_sun_path() {
+	x1 := C.sockaddr_un{}
+	x2 := Unix{}
+	assert sizeof(x1.sun_path) == sizeof(x2.path)
+}
+
+fn test_offsets_ipv6() {
+	assert __offsetof(C.sockaddr_in6, sin6_addr) == __offsetof(Ip6, addr) + net.aoffset
+	assert __offsetof(C.sockaddr_in6, sin6_port) == __offsetof(Ip6, port) + net.aoffset
+}
+
+fn test_offsets_ipv4() {
+	assert __offsetof(C.sockaddr_in, sin_addr) == __offsetof(Ip, addr) + net.aoffset
+	assert __offsetof(C.sockaddr_in, sin_port) == __offsetof(Ip, port) + net.aoffset
+}
+
+fn test_offsets_unix() {
+	assert __offsetof(C.sockaddr_un, sun_path) == __offsetof(Unix, path) + net.aoffset
+}
+
+fn test_sizes_ipv6() {
+	assert sizeof(C.sockaddr_in6) == sizeof(Ip6) + aoffset
+}
+
+fn test_sizes_ipv4() {
+	assert sizeof(C.sockaddr_in) == sizeof(Ip) + aoffset
+}
+
+fn test_sizes_unix() {
+	assert sizeof(C.sockaddr_un) == sizeof(Unix) + aoffset
+}