authorgravatar for bblack@wikimedia.orgBrandon Black <bblack@wikimedia.org> 2026-09-03 10:37:53-05:00
committergravatar for bblack@wikimedia.orgBrandon Black <bblack@wikimedia.org> 2026-09-03 10:42:32-05:00
loge1c0f13ae54ced1505abb1934e3ae7e0f8d118a2
tree0ad46d9e20774e765bb2eadebe9a299ea6a76c3b
parente78ea8f2cb3677c0a104319b8aa5e37ea64d9cfa

std.c: define TCP options for several OSes

Primary motivation was the lack of TCP.NODELAY on multiple targets that should have it. Note that FreeBSD has a much larger set of defines in the "TCP_" namespace than what I've pasted here, including a bunch of non-option constants and extremely platform-specific features. I stuck to just the simpler and more traditional options only for now. The rest could be added later, and may need some thought as how to best represent them.

7 files changed, 122 insertions(+), 0 deletions(-)

lib/std/c.zig+6
...@@ -5997,8 +5997,14 @@ pub const SOCK = switch (native_os) {...@@ -5997,8 +5997,14 @@ pub const SOCK = switch (native_os) {
5997pub const TCP = switch (native_os) {5997pub const TCP = switch (native_os) {
5998 .driverkit, .ios, .maccatalyst, .macos, .tvos, .visionos, .watchos => darwin.TCP,5998 .driverkit, .ios, .maccatalyst, .macos, .tvos, .visionos, .watchos => darwin.TCP,
5999 .linux => linux.TCP,5999 .linux => linux.TCP,
6000 .freebsd => freebsd.TCP,
6001 .netbsd => netbsd.TCP,
6002 .openbsd => openbsd.TCP,
6003 .dragonfly => dragonfly.TCP,
6000 .emscripten => emscripten.TCP,6004 .emscripten => emscripten.TCP,
6001 .windows => ws2_32.TCP,6005 .windows => ws2_32.TCP,
6006 .illumos => illumos.TCP,
6007 .haiku => haiku.TCP,
6002 // https://github.com/SerenityOS/serenity/blob/61ac554a3403838f79ca746bd1c65ded6f97d124/Kernel/API/POSIX/netinet/tcp.h#L13-L146008 // https://github.com/SerenityOS/serenity/blob/61ac554a3403838f79ca746bd1c65ded6f97d124/Kernel/API/POSIX/netinet/tcp.h#L13-L14
6003 .serenity => struct {6009 .serenity => struct {
6004 pub const NODELAY = 10;6010 pub const NODELAY = 10;
lib/std/c/dragonfly.zig+14
...@@ -302,3 +302,17 @@ pub const IPTOS = struct {...@@ -302,3 +302,17 @@ pub const IPTOS = struct {
302 pub const ECN_CE = 0x03;302 pub const ECN_CE = 0x03;
303 pub const ECN_MASK = 0x03;303 pub const ECN_MASK = 0x03;
304};304};
305
306// https://github.com/DragonFlyBSD/DragonFlyBSD/blob/8410ea0817ce17438e0a10fc4ba6c9697281048a/sys/netinet/tcp.h#L156
307pub const TCP = struct {
308 pub const NODELAY = 0x01;
309 pub const MAXSEG = 0x02;
310 pub const NOPUSH = 0x04;
311 pub const NOOPT = 0x08;
312 pub const SIGNATURE_ENABLE = 0x10;
313 pub const KEEPINIT = 0x20;
314 pub const FASTKEEP = 0x80;
315 pub const KEEPIDLE = 0x100;
316 pub const KEEPINTVL = 0x200;
317 pub const KEEPCNT = 0x400;
318};
lib/std/c/freebsd.zig+43
...@@ -586,3 +586,46 @@ pub const IPTOS = struct {...@@ -586,3 +586,46 @@ pub const IPTOS = struct {
586 pub const ECN_CE = 0x03;586 pub const ECN_CE = 0x03;
587 pub const ECN_MASK = 0x03;587 pub const ECN_MASK = 0x03;
588};588};
589
590// https://cgit.freebsd.org/src/tree/sys/netinet/tcp.h?id=52c0d52b91e34f9190c9ba8fab7b6bc463bc4cbb#n183
591pub const TCP = struct {
592 pub const NODELAY = 1;
593 pub const MAXSEG = 2;
594 pub const NOPUSH = 4;
595 pub const NOOPT = 8;
596 pub const MD5SIG = 16;
597 pub const INFO = 32;
598 pub const STATS = 33;
599 pub const LOG = 34;
600 pub const LOGBUF = 35;
601 pub const LOGID = 36;
602 pub const LOGDUMP = 37;
603 pub const LOGDUMPID = 38;
604 pub const TXTLS_ENABLE = 39;
605 pub const TXTLS_MODE = 40;
606 pub const RXTLS_ENABLE = 41;
607 pub const RXTLS_MODE = 42;
608 pub const IWND_NB = 43;
609 pub const IWND_NSEG = 44;
610 pub const USE_DDP = 45;
611 pub const LOGID_CNT = 46;
612 pub const LOG_TAG = 47;
613 pub const USER_LOG = 48;
614 pub const CONGESTION = 64;
615 pub const CCALGOOPT = 65;
616 pub const MAXUNACKTIME = 68;
617 pub const IDLE_REDUCE = 70;
618 pub const REMOTE_UDP_ENCAPS_PORT = 71;
619 pub const DELACK = 72;
620 pub const FIN_IS_RST = 73;
621 pub const LOG_LIMIT = 74;
622 pub const SHARED_CWND_ALLOWED = 75;
623 pub const PROC_ACCOUNTING = 76;
624 pub const USE_CMP_ACKS = 77;
625 pub const PERF_INFO = 78;
626 pub const KEEPINIT = 128;
627 pub const KEEPIDLE = 256;
628 pub const KEEPINTVL = 512;
629 pub const KEEPCNT = 1024;
630 pub const FASTOPEN = 1025;
631};
lib/std/c/haiku.zig+8
...@@ -289,3 +289,11 @@ pub const IPTOS = struct {...@@ -289,3 +289,11 @@ pub const IPTOS = struct {
289 pub const THROUGHPUT = 0x08;289 pub const THROUGHPUT = 0x08;
290 pub const LOWDELAY = 0x10;290 pub const LOWDELAY = 0x10;
291};291};
292
293// https://github.com/haiku/haiku/blob/2ffb9aef511dde272ab57d545a5d8631705a5ec8/headers/posix/netinet/tcp.h#L74
294pub const TCP = struct {
295 pub const NODELAY = 0x01;
296 pub const MAXSEG = 0x02;
297 pub const NOPUSH = 0x04;
298 pub const NOOPT = 0x08;
299};
lib/std/c/illumos.zig+28
...@@ -455,3 +455,31 @@ pub const IPTOS = struct {...@@ -455,3 +455,31 @@ pub const IPTOS = struct {
455 pub const PREC_PRIORITY = 0x20;455 pub const PREC_PRIORITY = 0x20;
456 pub const PREC_ROUTINE = 0x00;456 pub const PREC_ROUTINE = 0x00;
457};457};
458
459// https://github.com/illumos/illumos-gate/blob/e1e6b944360d951edf36ef4198261818ed2d9b2f/usr/src/uts/common/netinet/tcp.h#L94
460pub const TCP = struct {
461 pub const NODELAY = 0x01;
462 pub const MAXSEG = 0x02;
463 pub const KEEPALIVE = 0x8;
464 pub const NOTIFY_THRESHOLD = 0x10;
465 pub const ABORT_THRESHOLD = 0x11;
466 pub const CONN_NOTIFY_THRESHOLD = 0x12;
467 pub const CONN_ABORT_THRESHOLD = 0x13;
468 pub const RECVDSTADDR = 0x14;
469 pub const INIT_CWND = 0x15;
470 pub const KEEPALIVE_THRESHOLD = 0x16;
471 pub const KEEPALIVE_ABORT_THRESHOLD = 0x17;
472 pub const CORK = 0x18;
473 pub const RTO_INITIAL = 0x19;
474 pub const RTO_MIN = 0x1A;
475 pub const RTO_MAX = 0x1B;
476 pub const LINGER2 = 0x1C;
477 pub const ANONPRIVBIND = 0x20;
478 pub const EXCLBIND = 0x21;
479 pub const KEEPIDLE = 0x22;
480 pub const KEEPCNT = 0x23;
481 pub const KEEPINTVL = 0x24;
482 pub const CONGESTION = 0x25;
483 pub const QUICKACK = 0x26;
484 pub const MD5SIG = 0x27;
485};
lib/std/c/netbsd.zig+13
...@@ -373,3 +373,16 @@ pub const IPTOS = struct {...@@ -373,3 +373,16 @@ pub const IPTOS = struct {
373 pub const PREC_PRIORITY = 0x20;373 pub const PREC_PRIORITY = 0x20;
374 pub const PREC_ROUTINE = 0x00;374 pub const PREC_ROUTINE = 0x00;
375};375};
376
377// https://github.com/NetBSD/src/blob/2579a44b3da9597de159e42cb1b5db0d382bd511/sys/netinet/tcp.h#L126
378pub const TCP = struct {
379 pub const NODELAY = 1;
380 pub const MAXSEG = 2;
381 pub const KEEPIDLE = 3;
382 pub const KEEPINTVL = 5;
383 pub const KEEPCNT = 6;
384 pub const KEEPINIT = 7;
385 pub const INFO = 9;
386 pub const MD5SIG = 0x10;
387 pub const CONGCTL = 0x20;
388};
lib/std/c/openbsd.zig+10
...@@ -443,3 +443,13 @@ pub const IPTOS = struct {...@@ -443,3 +443,13 @@ pub const IPTOS = struct {
443 pub const ECN_CE = 0x03;443 pub const ECN_CE = 0x03;
444 pub const ECN_MASK = 0x03;444 pub const ECN_MASK = 0x03;
445};445};
446
447// https://github.com/openbsd/src/blob/5761484065d1eed341f812f818ecf3f79138e7c6/sys/netinet/tcp.h#L215
448pub const TCP = struct {
449 pub const NODELAY = 0x01;
450 pub const MAXSEG = 0x02;
451 pub const MD5SIG = 0x04;
452 pub const SACK_ENABLE = 0x08;
453 pub const INFO = 0x09;
454 pub const NOPUSH = 0x10;
455};