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-rw-r--r--vendor/rustix/src/ioctl/bsd.rs24
1 files changed, 24 insertions, 0 deletions
diff --git a/vendor/rustix/src/ioctl/bsd.rs b/vendor/rustix/src/ioctl/bsd.rs
new file mode 100644
index 000000000..66b75b54b
--- /dev/null
+++ b/vendor/rustix/src/ioctl/bsd.rs
@@ -0,0 +1,24 @@
+//! `ioctl` opcode behavior for Linux platforms.
+
+use super::{Direction, RawOpcode};
+
+pub(super) const fn compose_opcode(
+ dir: Direction,
+ group: RawOpcode,
+ num: RawOpcode,
+ size: RawOpcode,
+) -> RawOpcode {
+ let dir = match dir {
+ Direction::None => NONE,
+ Direction::Read => READ,
+ Direction::Write => WRITE,
+ Direction::ReadWrite => READ | WRITE,
+ };
+
+ dir | num | (group << 8) | ((size & IOCPARAM_MASK) << 16)
+}
+
+pub const NONE: RawOpcode = 0x2000_0000;
+pub const WRITE: RawOpcode = 0x4000_0000;
+pub const READ: RawOpcode = 0x8000_0000;
+pub const IOCPARAM_MASK: RawOpcode = 0x1FFF;