1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
//! The Unix `ioctl` function is effectively lots of different functions
//! hidden behind a single dynamic dispatch interface. In order to provide
//! a type-safe API, rustix makes them all separate functions so that they
//! can have dedicated static type signatures.

use crate::{backend, io};
use backend::fd::AsFd;

/// `ioctl(fd, TIOCEXCL)`—Enables exclusive mode on a terminal.
///
/// # References
///  - [Linux]
///  - [FreeBSD]
///  - [NetBSD]
///  - [OpenBSD]
///
/// [Linux]: https://man7.org/linux/man-pages/man4/tty_ioctl.4.html
/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=tty&sektion=4
/// [NetBSD]: https://man.netbsd.org/tty.4
/// [OpenBSD]: https://man.openbsd.org/tty.4
#[cfg(not(any(windows, target_os = "haiku", target_os = "redox", target_os = "wasi")))]
#[inline]
#[doc(alias = "TIOCEXCL")]
pub fn ioctl_tiocexcl<Fd: AsFd>(fd: Fd) -> io::Result<()> {
    backend::io::syscalls::ioctl_tiocexcl(fd.as_fd())
}

/// `ioctl(fd, TIOCNXCL)`—Disables exclusive mode on a terminal.
///
/// # References
///  - [Linux]
///  - [FreeBSD]
///  - [NetBSD]
///  - [OpenBSD]
///
/// [Linux]: https://man7.org/linux/man-pages/man4/tty_ioctl.4.html
/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=tty&sektion=4
/// [NetBSD]: https://man.netbsd.org/tty.4
/// [OpenBSD]: https://man.openbsd.org/tty.4
#[cfg(not(any(windows, target_os = "haiku", target_os = "redox", target_os = "wasi")))]
#[inline]
#[doc(alias = "TIOCNXCL")]
pub fn ioctl_tiocnxcl<Fd: AsFd>(fd: Fd) -> io::Result<()> {
    backend::io::syscalls::ioctl_tiocnxcl(fd.as_fd())
}

/// `ioctl(fd, FIOCLEX, NULL)`—Set the close-on-exec flag.
///
/// Also known as `fcntl(fd, F_SETFD, FD_CLOEXEC)`.
///
/// # References
///  - [Winsock2]
///  - [NetBSD]
///  - [OpenBSD]
///
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-ioctlsocket
/// [NetBSD]: https://man.netbsd.org/ioctl.2#GENERIC%20IOCTLS
/// [OpenBSD]: https://man.openbsd.org/ioctl.2#GENERIC_IOCTLS
#[cfg(apple)]
#[inline]
#[doc(alias = "FIOCLEX")]
#[doc(alias = "FD_CLOEXEC")]
pub fn ioctl_fioclex<Fd: AsFd>(fd: Fd) -> io::Result<()> {
    backend::io::syscalls::ioctl_fioclex(fd.as_fd())
}

/// `ioctl(fd, FIONBIO, &value)`—Enables or disables non-blocking mode.
///
/// # References
///  - [Winsock2]
///  - [NetBSD]
///  - [OpenBSD]
///
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/winsock/winsock-ioctls#unix-ioctl-codes
/// [NetBSD]: https://man.netbsd.org/ioctl.2#GENERIC%20IOCTLS
/// [OpenBSD]: https://man.openbsd.org/ioctl.2#GENERIC_IOCTLS
#[inline]
#[doc(alias = "FIONBIO")]
pub fn ioctl_fionbio<Fd: AsFd>(fd: Fd, value: bool) -> io::Result<()> {
    backend::io::syscalls::ioctl_fionbio(fd.as_fd(), value)
}

/// `ioctl(fd, FIONREAD)`—Returns the number of bytes ready to be read.
///
/// The result of this function gets silently coerced into a C `int`
/// by the OS, so it may contain a wrapped value.
///
/// # References
///  - [Linux]
///  - [Winsock2]
///  - [FreeBSD]
///  - [NetBSD]
///  - [OpenBSD]
///
/// [Linux]: https://man7.org/linux/man-pages/man2/ioctl_tty.2.html
/// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/winsock/winsock-ioctls#unix-ioctl-codes
/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=ioctl&sektion=2#GENERIC%09IOCTLS
/// [NetBSD]: https://man.netbsd.org/ioctl.2#GENERIC%20IOCTLS
/// [OpenBSD]: https://man.openbsd.org/ioctl.2#GENERIC_IOCTLS
#[cfg(not(target_os = "redox"))]
#[inline]
#[doc(alias = "FIONREAD")]
pub fn ioctl_fionread<Fd: AsFd>(fd: Fd) -> io::Result<u64> {
    backend::io::syscalls::ioctl_fionread(fd.as_fd())
}

/// `ioctl(fd, BLKSSZGET)`—Returns the logical block size of a block device.
///
/// This is mentioned in the [Linux `openat` manual page].
///
/// [Linux `openat` manual page]: https://man7.org/linux/man-pages/man2/openat.2.html
#[cfg(any(target_os = "android", target_os = "linux"))]
#[inline]
#[doc(alias = "BLKSSZGET")]
pub fn ioctl_blksszget<Fd: AsFd>(fd: Fd) -> io::Result<u32> {
    backend::io::syscalls::ioctl_blksszget(fd.as_fd())
}

/// `ioctl(fd, BLKPBSZGET)`—Returns the physical block size of a block device.
#[cfg(any(target_os = "android", target_os = "linux"))]
#[inline]
#[doc(alias = "BLKPBSZGET")]
pub fn ioctl_blkpbszget<Fd: AsFd>(fd: Fd) -> io::Result<u32> {
    backend::io::syscalls::ioctl_blkpbszget(fd.as_fd())
}

/// `ioctl(fd, FICLONE, src_fd)`—Share data between open files.
///
/// # References
///  - [Linux]
///
/// [Linux]: https://man7.org/linux/man-pages/man2/ioctl_ficlone.2.html
#[cfg(any(target_os = "android", target_os = "linux"))]
#[inline]
#[doc(alias = "FICLONE")]
pub fn ioctl_ficlone<Fd: AsFd, SrcFd: AsFd>(fd: Fd, src_fd: SrcFd) -> io::Result<()> {
    backend::io::syscalls::ioctl_ficlone(fd.as_fd(), src_fd.as_fd())
}