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-rw-r--r--vendor/nix/src/sys/ioctl/bsd.rs129
1 files changed, 129 insertions, 0 deletions
diff --git a/vendor/nix/src/sys/ioctl/bsd.rs b/vendor/nix/src/sys/ioctl/bsd.rs
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+++ b/vendor/nix/src/sys/ioctl/bsd.rs
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+/// The datatype used for the ioctl number
+#[doc(hidden)]
+#[cfg(not(target_os = "illumos"))]
+pub type ioctl_num_type = ::libc::c_ulong;
+
+#[doc(hidden)]
+#[cfg(target_os = "illumos")]
+pub type ioctl_num_type = ::libc::c_int;
+
+/// The datatype used for the 3rd argument
+#[doc(hidden)]
+pub type ioctl_param_type = ::libc::c_int;
+
+mod consts {
+ use crate::sys::ioctl::ioctl_num_type;
+ #[doc(hidden)]
+ pub const VOID: ioctl_num_type = 0x2000_0000;
+ #[doc(hidden)]
+ pub const OUT: ioctl_num_type = 0x4000_0000;
+ #[doc(hidden)]
+ #[allow(overflowing_literals)]
+ pub const IN: ioctl_num_type = 0x8000_0000;
+ #[doc(hidden)]
+ pub const INOUT: ioctl_num_type = IN | OUT;
+ #[doc(hidden)]
+ pub const IOCPARM_MASK: ioctl_num_type = 0x1fff;
+}
+
+pub use self::consts::*;
+
+#[macro_export]
+#[doc(hidden)]
+macro_rules! ioc {
+ ($inout:expr, $group:expr, $num:expr, $len:expr) => {
+ $inout
+ | (($len as $crate::sys::ioctl::ioctl_num_type
+ & $crate::sys::ioctl::IOCPARM_MASK)
+ << 16)
+ | (($group as $crate::sys::ioctl::ioctl_num_type) << 8)
+ | ($num as $crate::sys::ioctl::ioctl_num_type)
+ };
+}
+
+/// Generate an ioctl request code for a command that passes no data.
+///
+/// This is equivalent to the `_IO()` macro exposed by the C ioctl API.
+///
+/// You should only use this macro directly if the `ioctl` you're working
+/// with is "bad" and you cannot use `ioctl_none!()` directly.
+///
+/// # Example
+///
+/// ```
+/// # #[macro_use] extern crate nix;
+/// const KVMIO: u8 = 0xAE;
+/// ioctl_write_int_bad!(kvm_create_vm, request_code_none!(KVMIO, 0x03));
+/// # fn main() {}
+/// ```
+#[macro_export(local_inner_macros)]
+macro_rules! request_code_none {
+ ($g:expr, $n:expr) => {
+ ioc!($crate::sys::ioctl::VOID, $g, $n, 0)
+ };
+}
+
+/// Generate an ioctl request code for a command that passes an integer
+///
+/// This is equivalent to the `_IOWINT()` macro exposed by the C ioctl API.
+///
+/// You should only use this macro directly if the `ioctl` you're working
+/// with is "bad" and you cannot use `ioctl_write_int!()` directly.
+#[macro_export(local_inner_macros)]
+macro_rules! request_code_write_int {
+ ($g:expr, $n:expr) => {
+ ioc!(
+ $crate::sys::ioctl::VOID,
+ $g,
+ $n,
+ ::std::mem::size_of::<$crate::libc::c_int>()
+ )
+ };
+}
+
+/// Generate an ioctl request code for a command that reads.
+///
+/// This is equivalent to the `_IOR()` macro exposed by the C ioctl API.
+///
+/// You should only use this macro directly if the `ioctl` you're working
+/// with is "bad" and you cannot use `ioctl_read!()` directly.
+///
+/// The read/write direction is relative to userland, so this
+/// command would be userland is reading and the kernel is
+/// writing.
+#[macro_export(local_inner_macros)]
+macro_rules! request_code_read {
+ ($g:expr, $n:expr, $len:expr) => {
+ ioc!($crate::sys::ioctl::OUT, $g, $n, $len)
+ };
+}
+
+/// Generate an ioctl request code for a command that writes.
+///
+/// This is equivalent to the `_IOW()` macro exposed by the C ioctl API.
+///
+/// You should only use this macro directly if the `ioctl` you're working
+/// with is "bad" and you cannot use `ioctl_write!()` directly.
+///
+/// The read/write direction is relative to userland, so this
+/// command would be userland is writing and the kernel is
+/// reading.
+#[macro_export(local_inner_macros)]
+macro_rules! request_code_write {
+ ($g:expr, $n:expr, $len:expr) => {
+ ioc!($crate::sys::ioctl::IN, $g, $n, $len)
+ };
+}
+
+/// Generate an ioctl request code for a command that reads and writes.
+///
+/// This is equivalent to the `_IOWR()` macro exposed by the C ioctl API.
+///
+/// You should only use this macro directly if the `ioctl` you're working
+/// with is "bad" and you cannot use `ioctl_readwrite!()` directly.
+#[macro_export(local_inner_macros)]
+macro_rules! request_code_readwrite {
+ ($g:expr, $n:expr, $len:expr) => {
+ ioc!($crate::sys::ioctl::INOUT, $g, $n, $len)
+ };
+}