net: implement OpenBSD and NetBSD support & add stubs for other targets & cleanup

19 files changed, 502 insertions, 277 deletions

diff --git a/core/net/addr.odin b/core/net/addr.odin
index 6e2881ac8..a3fa02cce 100644
--- a/core/net/addr.odin
+++ b/core/net/addr.odin
@@ -1,4 +1,3 @@
-#+build windows, linux, darwin, freebsd
 package net
 
 /*
@@ -22,7 +21,6 @@ package net
 
 import "core:strconv"
 import "core:strings"
-import "core:fmt"
 
 /*
 	Expects an IPv4 address with no leading or trailing whitespace:
@@ -473,13 +471,20 @@ join_port :: proc(address_or_host: string, port: int, allocator := context.alloc
 	addr := parse_address(addr_or_host)
 	if addr == nil {
 		// hostname
-		fmt.sbprintf(&b, "%v:%v", addr_or_host, port)
+		strings.write_string(&b, addr_or_host)
+		strings.write_string(&b, ":")
+		strings.write_int(&b, port)
 	} else {
 		switch _ in addr {
 		case IP4_Address:
-			fmt.sbprintf(&b, "%v:%v", address_to_string(addr), port)
+			strings.write_string(&b, address_to_string(addr))
+			strings.write_string(&b, ":")
+			strings.write_int(&b, port)
 		case IP6_Address:
-			fmt.sbprintf(&b, "[%v]:%v", address_to_string(addr), port)
+			strings.write_string(&b, "[")
+			strings.write_string(&b, address_to_string(addr))
+			strings.write_string(&b, "]:")
+			strings.write_int(&b, port)
 		}
 	}
 	return strings.to_string(b)
@@ -509,7 +514,13 @@ address_to_string :: proc(addr: Address, allocator := context.temp_allocator) ->
 	b := strings.builder_make(allocator)
 	switch v in addr {
 	case IP4_Address:
-		fmt.sbprintf(&b, "%v.%v.%v.%v", v[0], v[1], v[2], v[3])
+		strings.write_uint(&b, uint(v[0]))
+		strings.write_byte(&b, '.')
+		strings.write_uint(&b, uint(v[1]))
+		strings.write_byte(&b, '.')
+		strings.write_uint(&b, uint(v[2]))
+		strings.write_byte(&b, '.')
+		strings.write_uint(&b, uint(v[3]))
 	case IP6_Address:
 		// First find the longest run of zeroes.
 		Zero_Run :: struct {
@@ -563,25 +574,33 @@ address_to_string :: proc(addr: Address, allocator := context.temp_allocator) ->
 		for val, i in v {
 			if best.start == i || best.end == i {
 				// For the left and right side of the best zero run, print a `:`.
-				fmt.sbprint(&b, ":")
+				strings.write_string(&b, ":")
 			} else if i < best.start {
 				/*
 					If we haven't made it to the best run yet, print the digit.
 					Make sure we only print a `:` after the digit if it's not
 					immediately followed by the run's own leftmost `:`.
 				*/
-				fmt.sbprintf(&b, "%x", val)
+
+				buf: [32]byte
+				str := strconv.write_bits(buf[:], u64(val), 16, false, size_of(val), strconv.digits, {})
+				strings.write_string(&b, str)
+
 				if i < best.start - 1 {
-					fmt.sbprintf(&b, ":")
+					strings.write_string(&b, ":")
 				}
 			} else if i > best.end {
 				/*
 					If there are any digits after the zero run, print them.
 					But don't print the `:` at the end of the IP number.
 				*/
-				fmt.sbprintf(&b, "%x", val)
+
+				buf: [32]byte
+				str := strconv.write_bits(buf[:], u64(val), 16, false, size_of(val), strconv.digits, {})
+				strings.write_string(&b, str)
+
 				if i != 7 {
-					fmt.sbprintf(&b, ":")
+					strings.write_string(&b, ":")
 				}
 			}
 		}
@@ -598,8 +617,14 @@ endpoint_to_string :: proc(ep: Endpoint, allocator := context.temp_allocator) ->
 		s := address_to_string(ep.address, context.temp_allocator)
 		b := strings.builder_make(allocator)
 		switch a in ep.address {
-		case IP4_Address:  fmt.sbprintf(&b, "%v:%v",   s, ep.port)
-		case IP6_Address:  fmt.sbprintf(&b, "[%v]:%v", s, ep.port)
+		case IP4_Address:
+			strings.write_string(&b, s)
+			strings.write_int(&b, ep.port)
+		case IP6_Address:
+			strings.write_string(&b, "[")
+			strings.write_string(&b, s)
+			strings.write_string(&b, "]:")
+			strings.write_int(&b, ep.port)
 		}
 		return strings.to_string(b)
 	}
diff --git a/core/net/common.odin b/core/net/common.odin
index 70523050f..2758a7359 100644
--- a/core/net/common.odin
+++ b/core/net/common.odin
@@ -1,4 +1,3 @@
-#+build windows, linux, darwin, freebsd
 package net
 
 /*
@@ -91,6 +90,7 @@ Parse_Endpoint_Error :: enum u32 {
 Resolve_Error :: enum u32 {
 	None = 0,
 	Unable_To_Resolve = 1,
+	Allocation_Failure,
 }
 
 DNS_Error :: enum u32 {
@@ -144,11 +144,11 @@ Address :: union {IP4_Address, IP6_Address}
 IP4_Loopback :: IP4_Address{127, 0, 0, 1}
 IP6_Loopback :: IP6_Address{0, 0, 0, 0, 0, 0, 0, 1}
 
-IP4_Any := IP4_Address{}
-IP6_Any := IP6_Address{}
+IP4_Any :: IP4_Address{}
+IP6_Any :: IP6_Address{}
 
-IP4_mDNS_Broadcast := Endpoint{address=IP4_Address{224, 0, 0, 251}, port=5353}
-IP6_mDNS_Broadcast := Endpoint{address=IP6_Address{65282, 0, 0, 0, 0, 0, 0, 251}, port = 5353}
+IP4_mDNS_Broadcast :: Endpoint{address=IP4_Address{224, 0, 0, 251}, port=5353}
+IP6_mDNS_Broadcast :: Endpoint{address=IP6_Address{65282, 0, 0, 0, 0, 0, 0, 251}, port = 5353}
 
 Endpoint :: struct {
 	address: Address,
diff --git a/core/net/dns.odin b/core/net/dns.odin
index 540991fe7..983f82681 100644
--- a/core/net/dns.odin
+++ b/core/net/dns.odin
@@ -1,4 +1,3 @@
-#+build windows, linux, darwin, freebsd
 package net
 
 /*
@@ -22,13 +21,18 @@ package net
 		Haesbaert:       Security fixes
 */
 
-@(require) import "base:runtime"
+@(require)
+import "base:runtime"
+
+import "core:bufio"
+import "core:io"
+import "core:math/rand"
 import "core:mem"
 import "core:strings"
 import "core:time"
-import "core:os"
-import "core:math/rand"
-@(require) import "core:sync"
+
+@(require)
+import "core:sync"
 
 dns_config_initialized: sync.Once
 when ODIN_OS == .Windows {
@@ -42,20 +46,12 @@ when ODIN_OS == .Windows {
 		hosts_file  = "/etc/hosts",
 	}
 } else {
-	#panic("Please add a configuration for this OS.")
+	DEFAULT_DNS_CONFIGURATION :: DNS_Configuration{}
 }
 
-/*
-	Replaces environment placeholders in `dns_configuration`. Only necessary on Windows.
-	Is automatically called, once, by `get_dns_records_*`.
-*/
-@(private)
 init_dns_configuration :: proc() {
 	when ODIN_OS == .Windows {
-		runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
-		val := os.replace_environment_placeholders(dns_configuration.hosts_file, context.temp_allocator)
-		copy(dns_configuration.hosts_file_buf[:], val)
-		dns_configuration.hosts_file = string(dns_configuration.hosts_file_buf[:len(val)])
+		_init_dns_configuration()
 	}
 }
 
@@ -178,9 +174,7 @@ resolve_ip6 :: proc(hostname_and_maybe_port: string) -> (ep6: Endpoint, err: Net
 	See `destroy_records`.
 */
 get_dns_records_from_os :: proc(hostname: string, type: DNS_Record_Type, allocator := context.allocator) -> (records: []DNS_Record, err: DNS_Error) {
-	when ODIN_OS == .Windows {
-		sync.once_do(&dns_config_initialized, init_dns_configuration)
-	}
+	init_dns_configuration()
 	return _get_dns_records_os(hostname, type, allocator)
 }
 
@@ -196,51 +190,14 @@ get_dns_records_from_os :: proc(hostname: string, type: DNS_Record_Type, allocat
 	See `destroy_records`.
 */
 get_dns_records_from_nameservers :: proc(hostname: string, type: DNS_Record_Type, name_servers: []Endpoint, host_overrides: []DNS_Record, allocator := context.allocator) -> (records: []DNS_Record, err: DNS_Error) {
-	when ODIN_OS == .Windows {
-		sync.once_do(&dns_config_initialized, init_dns_configuration)
-	}
+	init_dns_configuration()
 	context.allocator = allocator
 
-	if type != .SRV {
-		// NOTE(tetra): 'hostname' can contain underscores when querying SRV records
-		ok := validate_hostname(hostname)
-		if !ok {
-			return nil, .Invalid_Hostname_Error
-		}
-	}
-
-	hdr := DNS_Header{
-		id = u16be(rand.uint32()),
-		is_response = false,
-		opcode = 0,
-		is_authoritative = false,
-		is_truncated = false,
-		is_recursion_desired = true,
-		is_recursion_available = false,
-		response_code = DNS_Response_Code.No_Error,
-	}
+	id := u16be(rand.uint32())
+	dns_packet_buf: [DNS_PACKET_MIN_LEN]byte = ---
+	dns_packet := make_dns_packet(dns_packet_buf[:], id, hostname, type) or_return
 
-	id, bits := pack_dns_header(hdr)
-	dns_hdr := [6]u16be{}
-	dns_hdr[0] = id
-	dns_hdr[1] = bits
-	dns_hdr[2] = 1
-
-	dns_query := [2]u16be{ u16be(type), 1 }
-
-	output := [(size_of(u16be) * 6) + NAME_MAX + (size_of(u16be) * 2)]u8{}
-	b := strings.builder_from_slice(output[:])
-
-	strings.write_bytes(&b, mem.slice_data_cast([]u8, dns_hdr[:]))
-	ok := encode_hostname(&b, hostname)
-	if !ok {
-		return nil, .Invalid_Hostname_Error
-	}
-	strings.write_bytes(&b, mem.slice_data_cast([]u8, dns_query[:]))
-
-	dns_packet := output[:strings.builder_len(b)]
-
-	dns_response_buf := [4096]u8{}
+	dns_response_buf: [4096]u8 = ---
 	dns_response: []u8
 	for name_server in name_servers {
 		conn, sock_err := make_unbound_udp_socket(family_from_endpoint(name_server))
@@ -283,6 +240,42 @@ get_dns_records_from_nameservers :: proc(hostname: string, type: DNS_Record_Type
 	return
 }
 
+DNS_PACKET_MIN_LEN :: (size_of(u16be) * 6) + NAME_MAX + (size_of(u16be) * 2)
+
+make_dns_packet :: proc(buf: []byte, id: u16be, hostname: string, type: DNS_Record_Type) -> (packet: []byte, err: DNS_Error) {
+	assert(len(buf) >= DNS_PACKET_MIN_LEN)
+
+	hdr := DNS_Header{
+		id = id,
+		is_response = false,
+		opcode = 0,
+		is_authoritative = false,
+		is_truncated = false,
+		is_recursion_desired = true,
+		is_recursion_available = false,
+		response_code = DNS_Response_Code.No_Error,
+	}
+
+	_, bits := pack_dns_header(hdr)
+	dns_hdr := [6]u16be{}
+	dns_hdr[0] = id
+	dns_hdr[1] = bits
+	dns_hdr[2] = 1
+
+	dns_query := [2]u16be{ u16be(type), 1 }
+
+	b := strings.builder_from_slice(buf[:])
+
+	strings.write_bytes(&b, mem.slice_data_cast([]u8, dns_hdr[:]))
+	ok := encode_hostname(&b, hostname)
+	if !ok {
+		return nil, .Invalid_Hostname_Error
+	}
+	strings.write_bytes(&b, mem.slice_data_cast([]u8, dns_query[:]))
+
+	return buf[:strings.builder_len(b)], nil
+}
+
 // `records` slice is also destroyed.
 destroy_dns_records :: proc(records: []DNS_Record, allocator := context.allocator) {
 	context.allocator = allocator
@@ -364,13 +357,8 @@ unpack_dns_header :: proc(id: u16be, bits: u16be) -> (hdr: DNS_Header) {
 	return hdr
 }
 
-load_resolv_conf :: proc(resolv_conf_path: string, allocator := context.allocator) -> (name_servers: []Endpoint, ok: bool) {
-	context.allocator = allocator
-
-	res := os.read_entire_file_from_filename(resolv_conf_path) or_return
-	defer delete(res)
-	resolv_str := string(res)
-
+parse_resolv_conf :: proc(resolv_str: string, allocator := context.allocator) -> (name_servers: []Endpoint) {
+	resolv_str := resolv_str
 	id_str := "nameserver"
 	id_len := len(id_str)
 
@@ -401,41 +389,51 @@ load_resolv_conf :: proc(resolv_conf_path: string, allocator := context.allocato
 		append(&_name_servers, endpoint)
 	}
 
-	return _name_servers[:], true
+	return _name_servers[:]
 }
 
-load_hosts :: proc(hosts_file_path: string, allocator := context.allocator) -> (hosts: []DNS_Host_Entry, ok: bool) {
-	context.allocator = allocator
+parse_hosts :: proc(stream: io.Stream, allocator := context.allocator) -> (hosts: []DNS_Host_Entry, ok: bool) {
+	s := bufio.scanner_init(&{}, stream, allocator)
+	defer bufio.scanner_destroy(s)
 
-	res := os.read_entire_file_from_filename(hosts_file_path, allocator) or_return
-	defer delete(res)
+	resize(&s.buf, 256)
 
-	_hosts := make([dynamic]DNS_Host_Entry, 0, allocator)
-	hosts_str := string(res)
-	for line in strings.split_lines_iterator(&hosts_str) {
-		if len(line) == 0 || line[0] == '#' {
-			continue
+	_hosts: [dynamic]DNS_Host_Entry
+	_hosts.allocator = allocator
+	defer if !ok {
+		for host in _hosts {
+			delete(host.name, allocator)
 		}
+		delete(_hosts)
+	}
 
-		splits := strings.fields(line)
-		defer delete(splits)
+	for bufio.scanner_scan(s) {
+		line := bufio.scanner_text(s)
 
-		(len(splits) >= 2) or_continue
+		line, _, _ = strings.partition(line, "#")
+		(len(line) > 0) or_continue
+
+		ip_str := strings.fields_iterator(&line) or_continue
 
-		ip_str := splits[0]
 		addr := parse_address(ip_str)
-		if addr == nil {
-			continue
-		}
+		(addr != nil) or_continue
 
-		for hostname in splits[1:] {
-			if len(hostname) != 0 {
-				append(&_hosts, DNS_Host_Entry{hostname, addr})
-			}
+		for hostname in strings.fields_iterator(&line) {
+			(len(hostname) > 0) or_continue
+
+			clone, alloc_err := strings.clone(hostname, allocator)
+			if alloc_err != nil { return }
+
+			_, alloc_err = append(&_hosts, DNS_Host_Entry{clone, addr})
+			if alloc_err != nil { return }
 		}
 	}
 
-	return _hosts[:], true
+	if bufio.scanner_error(s) != nil { return }
+
+	hosts = _hosts[:]
+	ok    = true
+	return
 }
 
 // www.google.com -> 3www6google3com0
@@ -594,7 +592,7 @@ decode_hostname :: proc(packet: []u8, start_idx: int, allocator := context.alloc
 
 // Uses RFC 952 & RFC 1123
 validate_hostname :: proc(hostname: string) -> (ok: bool) {
-	if len(hostname) > 255 || len(hostname) == 0 {
+	if len(hostname) > NAME_MAX || len(hostname) == 0 {
 		return
 	}
 
@@ -604,7 +602,7 @@ validate_hostname :: proc(hostname: string) -> (ok: bool) {
 
 	_hostname := hostname
 	for label in strings.split_iterator(&_hostname, ".") {
-		if len(label) > 63 || len(label) == 0 {
+		if len(label) > LABEL_MAX || len(label) == 0 {
 			return
 		}
 
@@ -868,4 +866,4 @@ parse_response :: proc(response: []u8, filter: DNS_Record_Type = nil, allocator
 	xid = hdr.id
 
 	return _records[:], xid, true
-}
\ No newline at end of file
+}
diff --git a/core/net/dns_os.odin b/core/net/dns_os.odin
new file mode 100644
index 000000000..19db0097a
--- /dev/null
+++ b/core/net/dns_os.odin
@@ -0,0 +1,24 @@
+#+build darwin, freebsd, openbsd, netbsd, linux, windows, wasi
+#+private
+package net
+
+import "core:os"
+
+load_resolv_conf :: proc(resolv_conf_path: string, allocator := context.allocator) -> (name_servers: []Endpoint, ok: bool) {
+	context.allocator = allocator
+
+	res := os.read_entire_file_from_filename(resolv_conf_path) or_return
+	defer delete(res)
+	resolv_str := string(res)
+
+	return parse_resolv_conf(resolv_str), true
+}
+
+load_hosts :: proc(hosts_file_path: string, allocator := context.allocator) -> (hosts: []DNS_Host_Entry, ok: bool) {
+	hosts_file, err := os.open(hosts_file_path)
+	if err != nil { return }
+	defer os.close(hosts_file)
+
+	return parse_hosts(os.stream_from_handle(hosts_file), allocator)
+}
+
diff --git a/core/net/dns_others.odin b/core/net/dns_others.odin
new file mode 100644
index 000000000..842e833aa
--- /dev/null
+++ b/core/net/dns_others.odin
@@ -0,0 +1,12 @@
+#+build !windows
+#+build !linux
+#+build !darwin
+#+build !freebsd
+#+build !netbsd
+#+build !openbsd
+package net
+
+@(private)
+_get_dns_records_os :: proc(hostname: string, type: DNS_Record_Type, allocator := context.allocator) -> (records: []DNS_Record, err: DNS_Error) {
+	return
+}
diff --git a/core/net/dns_unix.odin b/core/net/dns_unix.odin
index fbc1909cd..be95b8341 100644
--- a/core/net/dns_unix.odin
+++ b/core/net/dns_unix.odin
@@ -1,4 +1,4 @@
-#+build linux, darwin, freebsd
+#+build linux, darwin, freebsd, openbsd, netbsd
 package net
 /*
 	Package net implements cross-platform Berkeley Sockets, DNS resolution and associated procedures.
@@ -42,14 +42,19 @@ _get_dns_records_os :: proc(hostname: string, type: DNS_Record_Type, allocator :
 	}
 
 	hosts, hosts_ok := load_hosts(dns_configuration.hosts_file)
-	defer delete(hosts)
 	if !hosts_ok {
 		return nil, .Invalid_Hosts_Config_Error
 	}
+	defer {
+		for h in hosts {
+			delete(h.name)
+		}
+		delete(hosts)
+	}
 
 	host_overrides := make([dynamic]DNS_Record)
 	for host in hosts {
-		if strings.compare(host.name, hostname) != 0 {
+		if host.name != hostname {
 			continue
 		}
 
@@ -79,4 +84,4 @@ _get_dns_records_os :: proc(hostname: string, type: DNS_Record_Type, allocator :
 	}
 
 	return get_dns_records_from_nameservers(hostname, type, name_servers, host_overrides[:])
-}
\ No newline at end of file
+}
diff --git a/core/net/dns_windows.odin b/core/net/dns_windows.odin
index b1e7da97d..393df5fa7 100644
--- a/core/net/dns_windows.odin
+++ b/core/net/dns_windows.odin
@@ -20,11 +20,29 @@ package net
 		Feoramund:       FreeBSD platform code
 */
 
-import "core:strings"
+import "base:runtime"
+
 import "core:mem"
+import "core:os"
+import "core:strings"
+import "core:sync"
 
 import win "core:sys/windows"
 
+/*
+	Replaces environment placeholders in `dns_configuration`. Only necessary on Windows.
+	Is automatically called, once, by `get_dns_records_*`.
+*/
+@(private)
+_init_dns_configuration :: proc() {
+	sync.once_do(&dns_config_initialized, proc() {
+		runtime.DEFAULT_TEMP_ALLOCATOR_TEMP_GUARD()
+		val := os.replace_environment_placeholders(dns_configuration.hosts_file, context.temp_allocator)
+		copy(dns_configuration.hosts_file_buf[:], val)
+		dns_configuration.hosts_file = string(dns_configuration.hosts_file_buf[:len(val)])
+	})
+}
+
 @(private)
 _get_dns_records_os :: proc(hostname: string, type: DNS_Record_Type, allocator := context.allocator) -> (records: []DNS_Record, err: DNS_Error) {
 	context.allocator = allocator
@@ -171,4 +189,4 @@ _get_dns_records_os :: proc(hostname: string, type: DNS_Record_Type, allocator :
 
 	records = recs[:]
 	return
-}
\ No newline at end of file
+}
diff --git a/core/net/errors.odin b/core/net/errors.odin
index de53640fc..28153375c 100644
--- a/core/net/errors.odin
+++ b/core/net/errors.odin
@@ -139,6 +139,11 @@ Accept_Error :: enum i32 {
 	Unknown,
 }
 
+Recv_Error :: union #shared_nil {
+	TCP_Recv_Error,
+	UDP_Recv_Error,
+}
+
 TCP_Recv_Error :: enum i32 {
 	None,
 	// No network connection, or the network stack is not initialized.
@@ -187,6 +192,11 @@ UDP_Recv_Error :: enum i32 {
 	Unknown,
 }
 
+Send_Error :: union #shared_nil {
+	TCP_Send_Error,
+	UDP_Send_Error,
+}
+
 TCP_Send_Error :: enum i32 {
 	None,
 	// No network connection, or the network stack is not initialized.
diff --git a/core/net/errors_others.odin b/core/net/errors_others.odin
index b80ead79c..3a752d58e 100644
--- a/core/net/errors_others.odin
+++ b/core/net/errors_others.odin
@@ -2,6 +2,8 @@
 #+build !linux
 #+build !freebsd
 #+build !windows
+#+build !netbsd
+#+build !openbsd
 package net
 
 @(private="file", thread_local)
@@ -18,10 +20,3 @@ _last_platform_error_string :: proc() -> string {
 _set_last_platform_error :: proc(err: i32) {
 	_last_error = err
 }
-
-Parse_Endpoint_Error :: enum u32 {
-	None          = 0,
-	Bad_Port      = 1,
-	Bad_Address,
-	Bad_Hostname,
-}
\ No newline at end of file
diff --git a/core/net/errors_darwin.odin b/core/net/errors_posix.odin
index a35e96bc0..b59cbc30b 100644
--- a/core/net/errors_darwin.odin
+++ b/core/net/errors_posix.odin
@@ -1,4 +1,4 @@
-#+build darwin
+#+build darwin, netbsd, openbsd
 package net
 
 /*
diff --git a/core/net/errors_windows.odin b/core/net/errors_windows.odin
index 83c45ee7f..6d3724c82 100644
--- a/core/net/errors_windows.odin
+++ b/core/net/errors_windows.odin
@@ -63,7 +63,7 @@ _dial_error :: proc() -> Dial_Error {
 		return .Already_Connecting
 	case .WSAEADDRNOTAVAIL, .WSAEAFNOSUPPORT, .WSAEFAULT, .WSAENOTSOCK, .WSAEINPROGRESS, .WSAEINVAL:
 		return .Invalid_Argument
-	case .WSAECONNREFUSED:
+	case .WSAECONNREFUSED, .CONNECTION_REFUSED:
 		return .Refused
 	case .WSAEISCONN:
 		return .Already_Connected
@@ -122,7 +122,7 @@ _accept_error :: proc() -> Accept_Error {
 		return .Aborted
 	case .WSAEFAULT, .WSAEINPROGRESS, .WSAENOTSOCK:
 		return .Invalid_Argument
-	case .WSAEINTR:
+	case .WSAEINTR, .OPERATION_ABORTED:
 		return .Interrupted
 	case .WSAEINVAL:
 		return .Not_Listening
diff --git a/core/net/interface_others.odin b/core/net/interface_others.odin
new file mode 100644
index 000000000..9a8a141df
--- /dev/null
+++ b/core/net/interface_others.odin
@@ -0,0 +1,11 @@
+#+build !darwin
+#+build !linux
+#+build !freebsd
+#+build !windows
+#+build !netbsd
+#+build !openbsd
+package net
+
+_enumerate_interfaces :: proc(allocator := context.allocator) -> (interfaces: []Network_Interface, err: Interfaces_Error) {
+	return
+}
diff --git a/core/net/interface_darwin.odin b/core/net/interface_posix.odin
index f18cff995..202951b29 100644
--- a/core/net/interface_darwin.odin
+++ b/core/net/interface_posix.odin
@@ -1,4 +1,4 @@
-#+build darwin
+#+build darwin, openbsd, netbsd
 package net
 
 /*
@@ -117,32 +117,47 @@ IF_Flag :: enum u32 {
 	BROADCAST,
 	DEBUG,
 	LOOPBACK,
-	POINTTOPOINT,
-	NOTRAILERS,
-	RUNNING,
-	NOARP,
-	PROMISC,
-	ALLMULTI,
-	OACTIVE,
-	SIMPLEX,
-	LINK0,
-	LINK1,
-	LINK2,
-	MULTICAST,
+	// NOTE: different order on other BSDs but we don't even need these.
+	// POINTTOPOINT,
+	// NOTRAILERS,
+	// RUNNING,
+	// NOARP,
+	// PROMISC,
+	// ALLMULTI,
+	// OACTIVE,
+	// SIMPLEX,
+	// LINK0,
+	// LINK1,
+	// LINK2,
+	// MULTICAST,
 }
 
 @(private)
 IF_Flags :: bit_set[IF_Flag; u32]
 
-@(private)
-ifaddrs :: struct {
-	next:    ^ifaddrs,
-	name:    cstring,
-	flags:   IF_Flags,
-	addr:    ^posix.sockaddr,
-	netmask: ^posix.sockaddr,
-	dstaddr: ^posix.sockaddr,
-	data:    rawptr,
+when ODIN_OS == .Darwin || ODIN_OS == .OpenBSD {
+	@(private)
+	ifaddrs :: struct {
+		next:    ^ifaddrs,
+		name:    cstring,
+		flags:   IF_Flags,
+		addr:    ^posix.sockaddr,
+		netmask: ^posix.sockaddr,
+		dstaddr: ^posix.sockaddr,
+		data:    rawptr,
+	}
+} else when ODIN_OS == .NetBSD {
+	@(private)
+	ifaddrs :: struct {
+		next:      ^ifaddrs,
+		name:      cstring,
+		flags:     IF_Flags,
+		addr:      ^posix.sockaddr,
+		netmask:   ^posix.sockaddr,
+		dstaddr:   ^posix.sockaddr,
+		data:      rawptr,
+		addrflags: u32,
+	}
 }
 
 @(private)
diff --git a/core/net/socket.odin b/core/net/socket.odin
index edb47cd0b..e2f96e2f3 100644
--- a/core/net/socket.odin
+++ b/core/net/socket.odin
@@ -1,4 +1,3 @@
-#+build windows, linux, darwin, freebsd
 package net
 
 /*
@@ -20,6 +19,35 @@ package net
 		Feoramund:       FreeBSD platform code
 */
 
+Socket_Option :: enum i32 {
+	Broadcast                 = i32(_SOCKET_OPTION_BROADCAST),
+	Reuse_Address             = i32(_SOCKET_OPTION_REUSE_ADDRESS),
+	Keep_Alive                = i32(_SOCKET_OPTION_KEEP_ALIVE),
+	Out_Of_Bounds_Data_Inline = i32(_SOCKET_OPTION_OUT_OF_BOUNDS_DATA_INLINE),
+	Linger                    = i32(_SOCKET_OPTION_LINGER),
+	Receive_Buffer_Size       = i32(_SOCKET_OPTION_RECEIVE_BUFFER_SIZE),
+	Send_Buffer_Size          = i32(_SOCKET_OPTION_SEND_BUFFER_SIZE),
+	Receive_Timeout           = i32(_SOCKET_OPTION_RECEIVE_TIMEOUT),
+	Send_Timeout              = i32(_SOCKET_OPTION_SEND_TIMEOUT),
+
+	TCP_Nodelay               = i32(_SOCKET_OPTION_TCP_NODELAY),
+
+	Use_Loopback              = i32(_SOCKET_OPTION_USE_LOOPBACK),
+	Reuse_Port                = i32(_SOCKET_OPTION_REUSE_PORT),
+	No_SIGPIPE_From_EPIPE     = i32(_SOCKET_OPTION_NO_SIGPIPE_FROM_EPIPE),
+	Reuse_Port_Load_Balancing = i32(_SOCKET_OPTION_REUSE_PORT_LOAD_BALANCING),
+
+	Exclusive_Addr_Use        = i32(_SOCKET_OPTION_EXCLUSIVE_ADDR_USE),
+	Conditional_Accept        = i32(_SOCKET_OPTION_CONDITIONAL_ACCEPT),
+	Dont_Linger               = i32(_SOCKET_OPTION_DONT_LINGER),
+}
+
+Shutdown_Manner :: enum i32 {
+	Receive = i32(_SHUTDOWN_MANNER_RECEIVE),
+	Send    = i32(_SHUTDOWN_MANNER_SEND),
+	Both    = i32(_SHUTDOWN_MANNER_BOTH),
+}
+
 any_socket_to_socket :: proc "contextless" (socket: Any_Socket) -> Socket {
 	switch s in socket {
 	case TCP_Socket:  return Socket(s)
diff --git a/core/net/socket_freebsd.odin b/core/net/socket_freebsd.odin
index fa20742cb..bd600fd99 100644
--- a/core/net/socket_freebsd.odin
+++ b/core/net/socket_freebsd.odin
@@ -20,45 +20,35 @@ package net
 		Feoramund:       FreeBSD platform code
 */
 
-import "core:c"
 import "core:sys/freebsd"
 import "core:time"
 
 Fd :: freebsd.Fd
 
-Socket_Option :: enum c.int {
-	// TODO: Test and implement more socket options.
-	// DEBUG
-	Reuse_Address             = cast(c.int)freebsd.Socket_Option.REUSEADDR,
-	Keep_Alive                = cast(c.int)freebsd.Socket_Option.KEEPALIVE,
-	// DONTROUTE
-	Broadcast                 = cast(c.int)freebsd.Socket_Option.BROADCAST,
-	Use_Loopback              = cast(c.int)freebsd.Socket_Option.USELOOPBACK,
-	Linger                    = cast(c.int)freebsd.Socket_Option.LINGER,
-	Out_Of_Bounds_Data_Inline = cast(c.int)freebsd.Socket_Option.OOBINLINE,
-	Reuse_Port                = cast(c.int)freebsd.Socket_Option.REUSEPORT,
-	// TIMESTAMP
-	No_SIGPIPE_From_EPIPE     = cast(c.int)freebsd.Socket_Option.NOSIGPIPE,
-	// ACCEPTFILTER
-	// BINTIME
-	// NO_OFFLOAD
-	// NO_DDP
-	Reuse_Port_Load_Balancing = cast(c.int)freebsd.Socket_Option.REUSEPORT_LB,
-	// RERROR
-
-	Send_Buffer_Size          = cast(c.int)freebsd.Socket_Option.SNDBUF,
-	Receive_Buffer_Size       = cast(c.int)freebsd.Socket_Option.RCVBUF,
-	// SNDLOWAT
-	// RCVLOWAT
-	Send_Timeout              = cast(c.int)freebsd.Socket_Option.SNDTIMEO,
-	Receive_Timeout           = cast(c.int)freebsd.Socket_Option.RCVTIMEO,
-}
+_SOCKET_OPTION_BROADCAST                 :: freebsd.Socket_Option.BROADCAST
+_SOCKET_OPTION_REUSE_ADDRESS             :: freebsd.Socket_Option.REUSEADDR
+_SOCKET_OPTION_KEEP_ALIVE                :: freebsd.Socket_Option.KEEPALIVE
+_SOCKET_OPTION_OUT_OF_BOUNDS_DATA_INLINE :: freebsd.Socket_Option.OOBINLINE
+_SOCKET_OPTION_LINGER                    :: freebsd.Socket_Option.LINGER
+_SOCKET_OPTION_RECEIVE_BUFFER_SIZE       :: freebsd.Socket_Option.RCVBUF
+_SOCKET_OPTION_SEND_BUFFER_SIZE          :: freebsd.Socket_Option.SNDBUF
+_SOCKET_OPTION_RECEIVE_TIMEOUT           :: freebsd.Socket_Option.RCVTIMEO
+_SOCKET_OPTION_SEND_TIMEOUT              :: freebsd.Socket_Option.SNDTIMEO
 
-Shutdown_Manner :: enum c.int {
-	Receive = cast(c.int)freebsd.Shutdown_Method.RD,
-	Send    = cast(c.int)freebsd.Shutdown_Method.WR,
-	Both    = cast(c.int)freebsd.Shutdown_Method.RDWR,
-}
+_SOCKET_OPTION_TCP_NODELAY :: -1
+
+_SOCKET_OPTION_USE_LOOPBACK              :: freebsd.Socket_Option.USELOOPBACK
+_SOCKET_OPTION_REUSE_PORT                :: freebsd.Socket_Option.REUSEPORT
+_SOCKET_OPTION_NO_SIGPIPE_FROM_EPIPE     :: freebsd.Socket_Option.NOSIGPIPE
+_SOCKET_OPTION_REUSE_PORT_LOAD_BALANCING :: freebsd.Socket_Option.REUSEPORT_LB
+
+_SOCKET_OPTION_EXCLUSIVE_ADDR_USE :: -1
+_SOCKET_OPTION_CONDITIONAL_ACCEPT :: -1
+_SOCKET_OPTION_DONT_LINGER        :: -1
+
+_SHUTDOWN_MANNER_RECEIVE :: freebsd.Shutdown_Method.RD
+_SHUTDOWN_MANNER_SEND    :: freebsd.Shutdown_Method.WR
+_SHUTDOWN_MANNER_BOTH    :: freebsd.Shutdown_Method.RDWR
 
 @(private)
 _create_socket :: proc(family: Address_Family, protocol: Socket_Protocol) -> (socket: Any_Socket, err: Create_Socket_Error) {
@@ -272,7 +262,7 @@ _set_option :: proc(socket: Any_Socket, option: Socket_Option, value: any, loc :
 	ptr: rawptr
 	len: freebsd.socklen_t
 
-	switch option {
+	#partial switch option {
 	case
 		.Reuse_Address,
 		.Keep_Alive,
@@ -344,7 +334,7 @@ _set_option :: proc(socket: Any_Socket, option: Socket_Option, value: any, loc :
 			ptr = &int_value
 			len = size_of(int_value)
 	case:
-		unimplemented("set_option() option not yet implemented", loc)
+		return .Invalid_Option
 	}
 
 	real_socket := any_socket_to_socket(socket)
diff --git a/core/net/socket_linux.odin b/core/net/socket_linux.odin
index 9719ff61b..8348ce114 100644
--- a/core/net/socket_linux.odin
+++ b/core/net/socket_linux.odin
@@ -21,28 +21,33 @@ package net
 		Feoramund:       FreeBSD platform code
 */
 
-import "core:c"
 import "core:time"
 import "core:sys/linux"
 
-Socket_Option :: enum c.int {
-	Reuse_Address             = c.int(linux.Socket_Option.REUSEADDR),
-	Keep_Alive                = c.int(linux.Socket_Option.KEEPALIVE),
-	Out_Of_Bounds_Data_Inline = c.int(linux.Socket_Option.OOBINLINE),
-	TCP_Nodelay               = c.int(linux.Socket_TCP_Option.NODELAY),
-	Linger                    = c.int(linux.Socket_Option.LINGER),
-	Receive_Buffer_Size       = c.int(linux.Socket_Option.RCVBUF),
-	Send_Buffer_Size          = c.int(linux.Socket_Option.SNDBUF),
-	Receive_Timeout           = c.int(linux.Socket_Option.RCVTIMEO),
-	Send_Timeout              = c.int(linux.Socket_Option.SNDTIMEO),
-	Broadcast                 = c.int(linux.Socket_Option.BROADCAST),
-}
+_SOCKET_OPTION_BROADCAST                 :: linux.Socket_Option.BROADCAST
+_SOCKET_OPTION_REUSE_ADDRESS             :: linux.Socket_Option.REUSEADDR
+_SOCKET_OPTION_KEEP_ALIVE                :: linux.Socket_Option.KEEPALIVE
+_SOCKET_OPTION_OUT_OF_BOUNDS_DATA_INLINE :: linux.Socket_Option.OOBINLINE
+_SOCKET_OPTION_LINGER                    :: linux.Socket_Option.LINGER
+_SOCKET_OPTION_RECEIVE_BUFFER_SIZE       :: linux.Socket_Option.RCVBUF
+_SOCKET_OPTION_SEND_BUFFER_SIZE          :: linux.Socket_Option.SNDBUF
+_SOCKET_OPTION_RECEIVE_TIMEOUT           :: linux.Socket_Option.RCVTIMEO
+_SOCKET_OPTION_SEND_TIMEOUT              :: linux.Socket_Option.SNDTIMEO
 
-Shutdown_Manner :: enum c.int {
-	Receive = c.int(linux.Shutdown_How.RD),
-	Send    = c.int(linux.Shutdown_How.WR),
-	Both    = c.int(linux.Shutdown_How.RDWR),
-}
+_SOCKET_OPTION_TCP_NODELAY :: linux.Socket_TCP_Option.NODELAY
+
+_SOCKET_OPTION_USE_LOOPBACK              :: -1
+_SOCKET_OPTION_REUSE_PORT                :: -1
+_SOCKET_OPTION_NO_SIGPIPE_FROM_EPIPE     :: -1
+_SOCKET_OPTION_REUSE_PORT_LOAD_BALANCING :: -1
+
+_SOCKET_OPTION_EXCLUSIVE_ADDR_USE :: -1
+_SOCKET_OPTION_CONDITIONAL_ACCEPT :: -1
+_SOCKET_OPTION_DONT_LINGER        :: -1
+
+_SHUTDOWN_MANNER_RECEIVE :: linux.Shutdown_How.RD
+_SHUTDOWN_MANNER_SEND    :: linux.Shutdown_How.WR
+_SHUTDOWN_MANNER_BOTH    :: linux.Shutdown_How.RDWR
 
 // Wrappers and unwrappers for system-native types
 
@@ -347,7 +352,7 @@ _set_option :: proc(sock: Any_Socket, option: Socket_Option, value: any, loc :=
 	int_value: i32
 	timeval_value: linux.Time_Val
 	errno: linux.Errno
-	switch option {
+	#partial switch option {
 	case
 		.Reuse_Address,
 		.Keep_Alive,
@@ -400,10 +405,14 @@ _set_option :: proc(sock: Any_Socket, option: Socket_Option, value: any, loc :=
 				panic("set_option() value must be an integer here", loc)
 			}
 			errno = linux.setsockopt(os_sock, level, int(option), &int_value)
+	case:
+		return .Invalid_Socket
 	}
+
 	if errno != .NONE {
 		return _socket_option_error(errno)
 	}
+
 	return nil
 }
 
diff --git a/core/net/socket_others.odin b/core/net/socket_others.odin
new file mode 100644
index 000000000..61cf7240e
--- /dev/null
+++ b/core/net/socket_others.odin
@@ -0,0 +1,105 @@
+#+build !darwin
+#+build !linux
+#+build !freebsd
+#+build !windows
+#+build !netbsd
+#+build !openbsd
+#+private
+package net
+
+_SOCKET_OPTION_BROADCAST                 :: -1
+_SOCKET_OPTION_REUSE_ADDRESS             :: -1
+_SOCKET_OPTION_KEEP_ALIVE                :: -1
+_SOCKET_OPTION_OUT_OF_BOUNDS_DATA_INLINE :: -1
+_SOCKET_OPTION_LINGER                    :: -1
+_SOCKET_OPTION_RECEIVE_BUFFER_SIZE       :: -1
+_SOCKET_OPTION_SEND_BUFFER_SIZE          :: -1
+_SOCKET_OPTION_RECEIVE_TIMEOUT           :: -1
+_SOCKET_OPTION_SEND_TIMEOUT              :: -1
+
+_SOCKET_OPTION_TCP_NODELAY :: -1
+
+_SOCKET_OPTION_USE_LOOPBACK              :: -1
+_SOCKET_OPTION_REUSE_PORT                :: -1
+_SOCKET_OPTION_NO_SIGPIPE_FROM_EPIPE     :: -1
+_SOCKET_OPTION_REUSE_PORT_LOAD_BALANCING :: -1
+
+_SOCKET_OPTION_EXCLUSIVE_ADDR_USE :: -1
+_SOCKET_OPTION_CONDITIONAL_ACCEPT :: -1
+_SOCKET_OPTION_DONT_LINGER        :: -1
+
+_SHUTDOWN_MANNER_RECEIVE :: -1
+_SHUTDOWN_MANNER_SEND    :: -1
+_SHUTDOWN_MANNER_BOTH    :: -1
+
+_dial_tcp_from_endpoint :: proc(endpoint: Endpoint, options := DEFAULT_TCP_OPTIONS) -> (sock: TCP_Socket, err: Network_Error) {
+	err = Create_Socket_Error.Network_Unreachable
+	return
+}
+
+_create_socket :: proc(family: Address_Family, protocol: Socket_Protocol) -> (sock: Any_Socket, err: Create_Socket_Error) {
+	err = .Network_Unreachable
+	return
+}
+
+_bind :: proc(skt: Any_Socket, ep: Endpoint) -> (err: Bind_Error) {
+	err = .Network_Unreachable
+	return
+}
+
+_listen_tcp :: proc(interface_endpoint: Endpoint, backlog := 1000) -> (skt: TCP_Socket, err: Network_Error) {
+	err = Create_Socket_Error.Network_Unreachable
+	return
+}
+
+_bound_endpoint :: proc(sock: Any_Socket) -> (ep: Endpoint, err: Socket_Info_Error) {
+	err = .Network_Unreachable
+	return
+}
+
+_peer_endpoint :: proc(sock: Any_Socket) -> (ep: Endpoint, err: Socket_Info_Error) {
+	err = .Network_Unreachable
+	return
+}
+
+_accept_tcp :: proc(sock: TCP_Socket, options := DEFAULT_TCP_OPTIONS) -> (client: TCP_Socket, source: Endpoint, err: Accept_Error) {
+	err = .Network_Unreachable
+	return
+}
+
+_close :: proc(skt: Any_Socket) {
+}
+
+_recv_tcp :: proc(skt: TCP_Socket, buf: []byte) -> (bytes_read: int, err: TCP_Recv_Error) {
+	err = .Network_Unreachable
+	return
+}
+
+_recv_udp :: proc(skt: UDP_Socket, buf: []byte) -> (bytes_read: int, remote_endpoint: Endpoint, err: UDP_Recv_Error) {
+	err = .Network_Unreachable
+	return
+}
+
+_send_tcp :: proc(skt: TCP_Socket, buf: []byte) -> (bytes_written: int, err: TCP_Send_Error) {
+	err = .Network_Unreachable
+	return
+}
+
+_send_udp :: proc(skt: UDP_Socket, buf: []byte, to: Endpoint) -> (bytes_written: int, err: UDP_Send_Error) {
+	err = .Network_Unreachable
+	return
+}
+
+_shutdown :: proc(skt: Any_Socket, manner: Shutdown_Manner) -> (err: Shutdown_Error) {
+	err = .Network_Unreachable
+	return
+}
+
+_set_option :: proc(s: Any_Socket, option: Socket_Option, value: any, loc := #caller_location) -> Socket_Option_Error {
+	return .Network_Unreachable
+}
+
+_set_blocking :: proc(socket: Any_Socket, should_block: bool) -> (err: Set_Blocking_Error) {
+	err = .Network_Unreachable
+	return
+}
diff --git a/core/net/socket_darwin.odin b/core/net/socket_posix.odin
index 8e01eb4a8..243b2e06f 100644
--- a/core/net/socket_darwin.odin
+++ b/core/net/socket_posix.odin
@@ -1,4 +1,4 @@
-#+build darwin
+#+build darwin, netbsd, openbsd
 package net
 
 /*
@@ -20,28 +20,33 @@ package net
 		Feoramund:       FreeBSD platform code
 */
 
-import "core:c"
 import "core:sys/posix"
 import "core:time"
 
-Socket_Option :: enum c.int {
-	Broadcast                 = c.int(posix.Sock_Option.BROADCAST),
-	Reuse_Address             = c.int(posix.Sock_Option.REUSEADDR),
-	Keep_Alive                = c.int(posix.Sock_Option.KEEPALIVE),
-	Out_Of_Bounds_Data_Inline = c.int(posix.Sock_Option.OOBINLINE),
-	TCP_Nodelay               = c.int(posix.TCP_NODELAY),
-	Linger                    = c.int(posix.Sock_Option.LINGER),
-	Receive_Buffer_Size       = c.int(posix.Sock_Option.RCVBUF),
-	Send_Buffer_Size          = c.int(posix.Sock_Option.SNDBUF),
-	Receive_Timeout           = c.int(posix.Sock_Option.RCVTIMEO),
-	Send_Timeout              = c.int(posix.Sock_Option.SNDTIMEO),
-}
+_SOCKET_OPTION_BROADCAST                 :: posix.Sock_Option.BROADCAST
+_SOCKET_OPTION_REUSE_ADDRESS             :: posix.Sock_Option.REUSEADDR
+_SOCKET_OPTION_KEEP_ALIVE                :: posix.Sock_Option.KEEPALIVE
+_SOCKET_OPTION_OUT_OF_BOUNDS_DATA_INLINE :: posix.Sock_Option.OOBINLINE
+_SOCKET_OPTION_LINGER                    :: posix.Sock_Option.LINGER
+_SOCKET_OPTION_RECEIVE_BUFFER_SIZE       :: posix.Sock_Option.RCVBUF
+_SOCKET_OPTION_SEND_BUFFER_SIZE          :: posix.Sock_Option.SNDBUF
+_SOCKET_OPTION_RECEIVE_TIMEOUT           :: posix.Sock_Option.RCVTIMEO
+_SOCKET_OPTION_SEND_TIMEOUT              :: posix.Sock_Option.SNDTIMEO
 
-Shutdown_Manner :: enum c.int {
-	Receive = c.int(posix.SHUT_RD),
-	Send    = c.int(posix.SHUT_WR),
-	Both    = c.int(posix.SHUT_RDWR),
-}
+_SOCKET_OPTION_TCP_NODELAY :: posix.TCP_NODELAY
+
+_SOCKET_OPTION_USE_LOOPBACK              :: -1
+_SOCKET_OPTION_REUSE_PORT                :: -1
+_SOCKET_OPTION_NO_SIGPIPE_FROM_EPIPE     :: -1
+_SOCKET_OPTION_REUSE_PORT_LOAD_BALANCING :: -1
+
+_SOCKET_OPTION_EXCLUSIVE_ADDR_USE :: -1
+_SOCKET_OPTION_CONDITIONAL_ACCEPT :: -1
+_SOCKET_OPTION_DONT_LINGER        :: -1
+
+_SHUTDOWN_MANNER_RECEIVE :: posix.SHUT_RD
+_SHUTDOWN_MANNER_SEND    :: posix.SHUT_WR
+_SHUTDOWN_MANNER_BOTH    :: posix.SHUT_RDWR
 
 @(private)
 _create_socket :: proc(family: Address_Family, protocol: Socket_Protocol) -> (socket: Any_Socket, err: Create_Socket_Error) {
@@ -273,7 +278,7 @@ _set_option :: proc(s: Any_Socket, option: Socket_Option, value: any, loc := #ca
 	ptr: rawptr
 	len: posix.socklen_t
 
-	switch option {
+	#partial switch option {
 	case
 		.Broadcast,
 		.Reuse_Address,
@@ -327,6 +332,8 @@ _set_option :: proc(s: Any_Socket, option: Socket_Option, value: any, loc := #ca
 			}
 			ptr = &int_value
 			len = size_of(int_value)
+	case:
+		return .Invalid_Option
 	}
 
 	skt := any_socket_to_socket(s)
diff --git a/core/net/socket_windows.odin b/core/net/socket_windows.odin
index 6dd2f0458..4eea0ea65 100644
--- a/core/net/socket_windows.odin
+++ b/core/net/socket_windows.odin
@@ -24,59 +24,30 @@ import "core:c"
 import win "core:sys/windows"
 import "core:time"
 
-Socket_Option :: enum c.int {
-	// bool: Whether the address that this socket is bound to can be reused by other sockets.
-	//       This allows you to bypass the cooldown period if a program dies while the socket is bound.
-	Reuse_Address             = win.SO_REUSEADDR,
-
-	// bool: Whether other programs will be inhibited from binding the same endpoint as this socket.
-	Exclusive_Addr_Use        = win.SO_EXCLUSIVEADDRUSE,
-
-	// bool: When true, keepalive packets will be automatically be sent for this connection. TODO: verify this understanding
-	Keep_Alive                = win.SO_KEEPALIVE, 
-
-	// bool: When true, client connections will immediately be sent a TCP/IP RST response, rather than being accepted.
-	Conditional_Accept        = win.SO_CONDITIONAL_ACCEPT,
-
-	// bool: If true, when the socket is closed, but data is still waiting to be sent, discard that data.
-	Dont_Linger               = win.SO_DONTLINGER,
-
-	// bool: When true, 'out-of-band' data sent over the socket will be read by a normal net.recv() call, the same as normal 'in-band' data.
-	Out_Of_Bounds_Data_Inline = win.SO_OOBINLINE,   
-
-	// bool: When true, disables send-coalescing, therefore reducing latency.
-	TCP_Nodelay               = win.TCP_NODELAY, 
-
-	// win.LINGER: Customizes how long (if at all) the socket will remain open when there
-	// is some remaining data waiting to be sent, and net.close() is called.
-	Linger                    = win.SO_LINGER, 
-
-	// win.DWORD: The size, in bytes, of the OS-managed receive-buffer for this socket.
-	Receive_Buffer_Size       = win.SO_RCVBUF, 
-
-	// win.DWORD: The size, in bytes, of the OS-managed send-buffer for this socket.
-	Send_Buffer_Size          = win.SO_SNDBUF,
-
-	// win.DWORD: For blocking sockets, the time in milliseconds to wait for incoming data to be received, before giving up and returning .Timeout.
-	//            For non-blocking sockets, ignored.
-	//            Use a value of zero to potentially wait forever.
-	Receive_Timeout           = win.SO_RCVTIMEO,
-
-	// win.DWORD: For blocking sockets, the time in milliseconds to wait for outgoing data to be sent, before giving up and returning .Timeout.
-	//            For non-blocking sockets, ignored.
-	//            Use a value of zero to potentially wait forever.
-	Send_Timeout              = win.SO_SNDTIMEO,
-
-	// bool: Allow sending to, receiving from, and binding to, a broadcast address.
-	Broadcast                 = win.SO_BROADCAST, 
-}
-
-
-Shutdown_Manner :: enum c.int {
-	Receive = win.SD_RECEIVE,
-	Send    = win.SD_SEND,
-	Both    = win.SD_BOTH,
-}
+_SOCKET_OPTION_BROADCAST                 :: win.SO_BROADCAST
+_SOCKET_OPTION_REUSE_ADDRESS             :: win.SO_REUSEADDR
+_SOCKET_OPTION_KEEP_ALIVE                :: win.SO_KEEPALIVE
+_SOCKET_OPTION_OUT_OF_BOUNDS_DATA_INLINE :: win.SO_OOBINLINE
+_SOCKET_OPTION_LINGER                    :: win.SO_LINGER
+_SOCKET_OPTION_RECEIVE_BUFFER_SIZE       :: win.SO_RCVBUF
+_SOCKET_OPTION_SEND_BUFFER_SIZE          :: win.SO_SNDBUF
+_SOCKET_OPTION_RECEIVE_TIMEOUT           :: win.SO_RCVTIMEO
+_SOCKET_OPTION_SEND_TIMEOUT              :: win.SO_SNDTIMEO
+
+_SOCKET_OPTION_TCP_NODELAY :: win.TCP_NODELAY
+
+_SOCKET_OPTION_USE_LOOPBACK              :: -1
+_SOCKET_OPTION_REUSE_PORT                :: -1
+_SOCKET_OPTION_NO_SIGPIPE_FROM_EPIPE     :: -1
+_SOCKET_OPTION_REUSE_PORT_LOAD_BALANCING :: -1
+
+_SOCKET_OPTION_EXCLUSIVE_ADDR_USE :: win.SO_EXCLUSIVEADDRUSE
+_SOCKET_OPTION_CONDITIONAL_ACCEPT :: win.SO_CONDITIONAL_ACCEPT
+_SOCKET_OPTION_DONT_LINGER        :: win.SO_DONTLINGER
+
+_SHUTDOWN_MANNER_RECEIVE :: win.SD_RECEIVE
+_SHUTDOWN_MANNER_SEND    :: win.SD_SEND
+_SHUTDOWN_MANNER_BOTH    :: win.SD_BOTH
 
 @(init, private)
 ensure_winsock_initialized :: proc "contextless" () {
@@ -322,7 +293,7 @@ _set_option :: proc(s: Any_Socket, option: Socket_Option, value: any, loc := #ca
 	ptr: rawptr
 	len: c.int
 
-	switch option {
+	#partial switch option {
 	case
 		.Reuse_Address,
 		.Exclusive_Addr_Use,
@@ -383,6 +354,8 @@ _set_option :: proc(s: Any_Socket, option: Socket_Option, value: any, loc := #ca
 			}
 			ptr = &int_value
 			len = size_of(int_value)
+	case:
+		return .Invalid_Option
 	}
 
 	socket := any_socket_to_socket(s)