From be91b68e66b537e76c0301c413da553c62175edc Mon Sep 17 00:00:00 2001
From: Michael Dusan <michael.dusan@gmail.com>
Date: Mon, 7 Oct 2024 13:19:33 -0400
Subject: [PATCH] dragonfly std: more std.c support

---
 lib/std/c.zig | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 71 insertions(+), 1 deletion(-)

diff --git a/lib/std/c.zig b/lib/std/c.zig
index ab4f7e84e7..d28f5b0ac4 100644
--- a/lib/std/c.zig
+++ b/lib/std/c.zig
@@ -134,7 +134,7 @@ pub const mode_t = switch (native_os) {
     .linux => linux.mode_t,
     .emscripten => emscripten.mode_t,
     .openbsd, .haiku, .netbsd, .solaris, .illumos, .wasi => u32,
-    .freebsd, .macos, .ios, .tvos, .watchos, .visionos => u16,
+    .freebsd, .macos, .ios, .tvos, .watchos, .visionos, .dragonfly => u16,
     else => u0,
 };
 
@@ -3150,6 +3150,72 @@ pub const T = switch (native_os) {
         pub const IOCUCNTL = 0x80047466;
         pub const IOCXMTFRAME = 0x80087444;
     },
+    .dragonfly => struct {
+        pub const IOCMODG = 0x40047403;
+        pub const IOCMODS = 0x80047404;
+        pub const IOCM_LE = 0x00000001;
+        pub const IOCM_DTR = 0x00000002;
+        pub const IOCM_RTS = 0x00000004;
+        pub const IOCM_ST = 0x00000008;
+        pub const IOCM_SR = 0x00000010;
+        pub const IOCM_CTS = 0x00000020;
+        pub const IOCM_CAR = 0x00000040;
+        pub const IOCM_CD = 0x00000040;
+        pub const IOCM_RNG = 0x00000080;
+        pub const IOCM_RI = 0x00000080;
+        pub const IOCM_DSR = 0x00000100;
+        pub const IOCEXCL = 0x2000740d;
+        pub const IOCNXCL = 0x2000740e;
+        pub const IOCFLUSH = 0x80047410;
+        pub const IOCGETA = 0x402c7413;
+        pub const IOCSETA = 0x802c7414;
+        pub const IOCSETAW = 0x802c7415;
+        pub const IOCSETAF = 0x802c7416;
+        pub const IOCGETD = 0x4004741a;
+        pub const IOCSETD = 0x8004741b;
+        pub const IOCSBRK = 0x2000747b;
+        pub const IOCCBRK = 0x2000747a;
+        pub const IOCSDTR = 0x20007479;
+        pub const IOCCDTR = 0x20007478;
+        pub const IOCGPGRP = 0x40047477;
+        pub const IOCSPGRP = 0x80047476;
+        pub const IOCOUTQ = 0x40047473;
+        pub const IOCSTI = 0x80017472;
+        pub const IOCNOTTY = 0x20007471;
+        pub const IOCPKT = 0x80047470;
+        pub const IOCPKT_DATA = 0x00000000;
+        pub const IOCPKT_FLUSHREAD = 0x00000001;
+        pub const IOCPKT_FLUSHWRITE = 0x00000002;
+        pub const IOCPKT_STOP = 0x00000004;
+        pub const IOCPKT_START = 0x00000008;
+        pub const IOCPKT_NOSTOP = 0x00000010;
+        pub const IOCPKT_DOSTOP = 0x00000020;
+        pub const IOCPKT_IOCTL = 0x00000040;
+        pub const IOCSTOP = 0x2000746f;
+        pub const IOCSTART = 0x2000746e;
+        pub const IOCMSET = 0x8004746d;
+        pub const IOCMBIS = 0x8004746c;
+        pub const IOCMBIC = 0x8004746b;
+        pub const IOCMGET = 0x4004746a;
+        pub const IOCREMOTE = 0x80047469;
+        pub const IOCGWINSZ = 0x40087468;
+        pub const IOCSWINSZ = 0x80087467;
+        pub const IOCUCNTL = 0x80047466;
+        pub const IOCSTAT = 0x20007465;
+        pub const IOCGSID = 0x40047463;
+        pub const IOCCONS = 0x80047462;
+        pub const IOCSCTTY = 0x20007461;
+        pub const IOCEXT = 0x80047460;
+        pub const IOCSIG = 0x2000745f;
+        pub const IOCDRAIN = 0x2000745e;
+        pub const IOCMSDTRWAIT = 0x8004745b;
+        pub const IOCMGDTRWAIT = 0x4004745a;
+        pub const IOCTIMESTAMP = 0x40107459;
+        pub const IOCDCDTIMESTAMP = 0x40107458;
+        pub const IOCSDRAINWAIT = 0x80047457;
+        pub const IOCGDRAINWAIT = 0x40047456;
+        pub const IOCISPTMASTER = 0x20007455;
+    },
     else => void,
 };
 pub const IOCPARM_MASK = switch (native_os) {
@@ -9809,6 +9875,10 @@ pub const _ksiginfo = netbsd._ksiginfo;
 pub const _lwp_self = netbsd._lwp_self;
 pub const lwpid_t = netbsd.lwpid_t;
 
+pub const lwp_gettid = dragonfly.lwp_gettid;
+pub const umtx_sleep = dragonfly.umtx_sleep;
+pub const umtx_wakeup = dragonfly.umtx_wakeup;
+
 /// External definitions shared by two or more operating systems.
 const private = struct {
     extern "c" fn close(fd: fd_t) c_int;