From d58bac75655a16d6c2fdc25286b6f6dfa2af980e Mon Sep 17 00:00:00 2001
From: Qiu Chaofan <qcf@ecnelises.com>
Date: Wed, 24 Jul 2024 10:54:38 +0800
Subject: [PATCH] Add AIX support

---
 src/lib.rs    |   5 ++
 src/os/aix.rs | 155 ++++++++++++++++++++++++++++++++++++++++++++++++++
 src/os/mod.rs |   2 +
 3 files changed, 162 insertions(+)
 create mode 100644 src/os/aix.rs

diff --git a/src/lib.rs b/src/lib.rs
index 9484c0f..66978a6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -119,6 +119,11 @@
 //!     cfsetspeed(termios, termios::os::illumos::B921600)
 //! }
 //!
+//! #[cfg(target_os = "aix")]
+//! fn set_fastest_speed(termios: &mut Termios) -> io::Result<()> {
+//!     cfsetspeed(termios, termios::os::aix::B38400)
+//! }
+//!
 //! # let fd = 1;
 //! let mut termios = Termios::from_fd(fd).unwrap();
 //! set_fastest_speed(&mut termios).unwrap();
diff --git a/src/os/aix.rs b/src/os/aix.rs
new file mode 100644
index 0000000..67d5ad2
--- /dev/null
+++ b/src/os/aix.rs
@@ -0,0 +1,155 @@
+#![allow(non_camel_case_types)]
+
+use libc::{c_int, c_uchar, c_uint};
+
+pub type cc_t = c_uchar;
+pub type speed_t = c_uint;
+pub type tcflag_t = c_uint;
+
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+#[repr(C)]
+pub struct termios {
+    pub c_iflag: tcflag_t,
+    pub c_oflag: tcflag_t,
+    pub c_cflag: tcflag_t,
+    pub c_lflag: tcflag_t,
+    pub c_cc: [cc_t; NCCS],
+}
+
+pub const NCCS: usize = 16;
+
+// c_cc characters
+pub const VINTR: usize = 0;
+pub const VQUIT: usize = 1;
+pub const VERASE: usize = 2;
+pub const VKILL: usize = 3;
+pub const VMIN: usize = 4;
+pub const VEOF: usize = 4;
+pub const VTIME: usize = 5;
+pub const VEOL: usize = 5;
+pub const VEOL2: usize = 6;
+pub const VSTART: usize = 7;
+pub const VSTOP: usize = 8;
+pub const VSUSP: usize = 9;
+pub const VDSUSP: usize = 10;
+pub const VREPRINT: usize = 11;
+pub const VDISCRD: usize = 12;
+pub const VWERSE: usize = 13;
+pub const VLNEXT: usize = 14;
+
+// c_iflag bits
+pub const IGNBRK: tcflag_t = 0o000001;
+pub const BRKINT: tcflag_t = 0o000002;
+pub const IGNPAR: tcflag_t = 0o000004;
+pub const PARMRK: tcflag_t = 0o000010;
+pub const INPCK: tcflag_t = 0o000020;
+pub const ISTRIP: tcflag_t = 0o000040;
+pub const INLCR: tcflag_t = 0o000100;
+pub const IGNCR: tcflag_t = 0o000200;
+pub const ICRNL: tcflag_t = 0o000400;
+pub const IUCLC: tcflag_t = 0o4000;
+pub const IXON: tcflag_t = 0o1000;
+pub const IXANY: tcflag_t = 0o10000;
+pub const IXOFF: tcflag_t = 0o2000;
+pub const IMAXBEL: tcflag_t = 0o200000;
+
+// c_oflag bits
+pub const OPOST: tcflag_t = 0o000001;
+pub const OLCUC: tcflag_t = 0o000002;
+pub const ONLCR: tcflag_t = 0o000004;
+pub const OCRNL: tcflag_t = 0o000010;
+pub const ONOCR: tcflag_t = 0o000020;
+pub const ONLRET: tcflag_t = 0o000040;
+pub const OFILL: tcflag_t = 0o000100;
+pub const OFDEL: tcflag_t = 0o000200;
+pub const NLDLY: tcflag_t = 0o40000;
+pub const NL0: tcflag_t = 0o00000;
+pub const NL1: tcflag_t = 0o40000;
+pub const CRDLY: tcflag_t = 0o1400;
+pub const CR0: tcflag_t = 0o000000;
+pub const CR1: tcflag_t = 0o400;
+pub const CR2: tcflag_t = 0o1000;
+pub const CR3: tcflag_t = 0o1400;
+pub const TABDLY: tcflag_t = 0o6000;
+pub const TAB0: tcflag_t = 0o0000;
+pub const TAB1: tcflag_t = 0o2000;
+pub const TAB2: tcflag_t = 0o4000;
+pub const TAB3: tcflag_t = 0o6000;
+pub const BSDLY: tcflag_t = 0o10000;
+pub const BS0: tcflag_t = 0o00000;
+pub const BS1: tcflag_t = 0o10000;
+pub const FFDLY: tcflag_t = 0o20000;
+pub const FF0: tcflag_t = 0o00000;
+pub const FF1: tcflag_t = 0o20000;
+pub const VTDLY: tcflag_t = 0o100000;
+pub const VT0: tcflag_t = 0o000000;
+pub const VT1: tcflag_t = 0o040000;
+pub const XTABS: tcflag_t = 0o6000;
+
+// c_cflag bits
+pub const CBAUD: tcflag_t = 0o17;
+pub const CSIZE: tcflag_t = 0o000060;
+pub const CS5: tcflag_t = 0o000000;
+pub const CS6: tcflag_t = 0o000020;
+pub const CS7: tcflag_t = 0o000040;
+pub const CS8: tcflag_t = 0o000060;
+pub const CSTOPB: tcflag_t = 0o000100;
+pub const CREAD: tcflag_t = 0o000200;
+pub const PARENB: tcflag_t = 0o000400;
+pub const PARODD: tcflag_t = 0o001000;
+pub const HUPCL: tcflag_t = 0o002000;
+pub const CLOCAL: tcflag_t = 0o004000;
+pub const CIBAUD: tcflag_t = 0o170000;
+
+// c_lflag bits
+pub const ISIG: tcflag_t = 0o000001;
+pub const ICANON: tcflag_t = 0o000002;
+pub const XCASE: tcflag_t = 0o000004;
+pub const ECHO: tcflag_t = 0o000010;
+pub const ECHOE: tcflag_t = 0o000020;
+pub const ECHOK: tcflag_t = 0o000040;
+pub const ECHONL: tcflag_t = 0o000100;
+pub const NOFLSH: tcflag_t = 0o000200;
+pub const TOSTOP: tcflag_t = 0o200000;
+pub const ECHOCTL: tcflag_t = 0o400000;
+pub const ECHOPRT: tcflag_t = 0o1000000;
+pub const ECHOKE: tcflag_t = 0o2000000;
+pub const FLUSHO: tcflag_t = 0o4000000;
+pub const PENDIN: tcflag_t = 0o4000000000;
+pub const IEXTEN: tcflag_t = 0o10000000;
+
+// baud rates
+pub const B0: speed_t = 0o000000;
+pub const B50: speed_t = 0o000001;
+pub const B75: speed_t = 0o000002;
+pub const B110: speed_t = 0o000003;
+pub const B134: speed_t = 0o000004;
+pub const B150: speed_t = 0o000005;
+pub const B200: speed_t = 0o000006;
+pub const B300: speed_t = 0o000007;
+pub const B600: speed_t = 0o000010;
+pub const B1200: speed_t = 0o000011;
+pub const B1800: speed_t = 0o000012;
+pub const B2400: speed_t = 0o000013;
+pub const B4800: speed_t = 0o000014;
+pub const B9600: speed_t = 0o000015;
+pub const B19200: speed_t = 0o000016;
+pub const B38400: speed_t = 0o000017;
+pub const EXTA: speed_t = B19200;
+pub const EXTB: speed_t = B38400;
+
+// tcflow()
+pub const TCOOFF: c_int = 0;
+pub const TCOON: c_int = 1;
+pub const TCIOFF: c_int = 2;
+pub const TCION: c_int = 3;
+
+// tcflush()
+pub const TCIFLUSH: c_int = 0;
+pub const TCOFLUSH: c_int = 1;
+pub const TCIOFLUSH: c_int = 2;
+
+// tcsetattr()
+pub const TCSANOW: c_int = 0;
+pub const TCSADRAIN: c_int = 1;
+pub const TCSAFLUSH: c_int = 2;
diff --git a/src/os/mod.rs b/src/os/mod.rs
index 7ac120f..161255a 100644
--- a/src/os/mod.rs
+++ b/src/os/mod.rs
@@ -9,6 +9,7 @@
 #[cfg(target_os = "dragonfly")] pub use self::dragonfly as target;
 #[cfg(target_os = "solaris")] pub use self::solaris as target;
 #[cfg(target_os = "illumos")] pub use self::illumos as target;
+#[cfg(target_os = "aix")] pub use self::aix as target;
 
 #[cfg(target_os = "linux")] pub mod linux;
 #[cfg(target_os = "android")] pub mod android;
@@ -19,3 +20,4 @@
 #[cfg(target_os = "dragonfly")] pub mod dragonfly;
 #[cfg(target_os = "solaris")] pub mod solaris;
 #[cfg(target_os = "illumos")] pub mod illumos;
+#[cfg(target_os = "aix")] pub mod aix;