		@@ -38,2 +38,6 @@ use std::env::var;

		// Check for `RUSTFLAGS=--cfg=rustix_no_linux_raw`. This allows Linux users to
		// enable the libc backend without the linux raw dependency.
		let cfg_no_linux_raw = var("CARGO_CFG_RUSTIX_NO_LINUX_RAW").is_ok();

		// Check for `--features=rustc-dep-of-std`.
		@@ -83,2 +87,11 @@ let rustc_dep_of_std = var("CARGO_FEATURE_RUSTC_DEP_OF_STD").is_ok();

		// `LowerExp`/`UpperExp` for `NonZeroI32` etc.
		if has_lower_upper_exp_for_non_zero() {
		use_feature("lower_upper_exp_for_non_zero");
		}

		if can_compile("#[diagnostic::on_unimplemented()] trait Foo {}") {
		use_feature("rustc_diagnostics")
		}

		// WASI support can utilize wasi_ext if present.
		@@ -108,2 +121,6 @@ if os == "wasi" {
		if libc {
		if os != "android" && os == "linux" && !cfg_no_linux_raw {
		use_feature("linux_raw_dep");
		}

		// Use the libc backend.
		@@ -113,2 +130,3 @@ use_feature("libc");
		// Use the linux_raw backend.
		use_feature("linux_raw_dep");
		use_feature("linux_raw");
		@@ -195,2 +213,8 @@ if rustix_use_experimental_asm {

		fn has_lower_upper_exp_for_non_zero() -> bool {
		// LowerExp/UpperExp for NonZero* were added in Rust 1.84.
		// <https://doc.rust-lang.org/stable/std/fmt/trait.LowerExp.html#impl-LowerExp-for-NonZero%3CT%3E>
		can_compile("fn a(x: &core::num::NonZeroI32, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result { core::fmt::LowerExp::fmt(x, f) }")
		}

		fn use_feature_or_nothing(feature: &str) {
		@@ -242,3 +266,3 @@ if has_feature(feature) {
		.arg("-o")
		.arg("-")
		.arg(std::env::temp_dir().join("rustix_test_can_compile"))
		.stdout(Stdio::null()); // We don't care about the output (only whether it builds or not)
		@@ -245,0 +269,0 @@

+87

-81

Cargo.lock

		@@ -61,5 +61,5 @@ # This file is automatically @generated by Cargo.
		name = "bumpalo"
		version = "3.18.1"
		version = "3.19.0"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "793db76d6187cd04dff33004d8e6c9cc4e05cd330500379d2394209271b4aeee"
		checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43"

		@@ -74,5 +74,5 @@ [[package]]
		name = "cfg-if"
		version = "1.0.1"
		version = "1.0.3"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "9555578bc9e57714c812a1f84e4fc5b4d21fcb063490c624de019f7464c91268"
		checksum = "2fd1289c04a9ea8cb22300a459a72a385d7c73d3259e2ed7dcb2af674838cfa9"

		@@ -135,5 +135,5 @@ [[package]]
		name = "crc32fast"
		version = "1.4.2"
		version = "1.5.0"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "a97769d94ddab943e4510d138150169a2758b5ef3eb191a9ee688de3e23ef7b3"
		checksum = "9481c1c90cbf2ac953f07c8d4a58aa3945c425b7185c9154d67a65e4230da511"
		dependencies = [
		@@ -206,5 +206,5 @@ "cfg-if",
		name = "crunchy"
		version = "0.2.3"
		version = "0.2.4"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "43da5946c66ffcc7745f48db692ffbb10a83bfe0afd96235c5c2a4fb23994929"
		checksum = "460fbee9c2c2f33933d720630a6a0bac33ba7053db5344fac858d4b8952d77d5"

		@@ -237,3 +237,3 @@ [[package]]
		"libc",
		"windows-sys 0.60.2",
		"windows-sys",
		]
		@@ -404,5 +404,5 @@
		name = "js-sys"
		version = "0.3.77"
		version = "0.3.78"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "1cfaf33c695fc6e08064efbc1f72ec937429614f25eef83af942d0e227c3a28f"
		checksum = "0c0b063578492ceec17683ef2f8c5e89121fbd0b172cbc280635ab7567db2738"
		dependencies = [
		@@ -421,5 +421,5 @@ "once_cell",
		name = "libc"
		version = "0.2.174"
		version = "0.2.175"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "1171693293099992e19cddea4e8b849964e9846f4acee11b3948bcc337be8776"
		checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543"

		@@ -437,2 +437,11 @@ [[package]]
		[[package]]
		name = "linux-raw-sys"
		version = "0.11.0"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "df1d3c3b53da64cf5760482273a98e575c651a67eec7f77df96b5b642de8f039"
		dependencies = [
		"rustc-std-workspace-core",
		]

		[[package]]
		name = "lock_api"
		@@ -449,5 +458,5 @@ version = "0.4.13"
		name = "log"
		version = "0.4.27"
		version = "0.4.28"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "13dc2df351e3202783a1fe0d44375f7295ffb4049267b0f3018346dc122a1d94"
		checksum = "34080505efa8e45a4b816c349525ebe327ceaa8559756f0356cba97ef3bf7432"

		@@ -570,5 +579,5 @@ [[package]]
		name = "proc-macro2"
		version = "1.0.95"
		version = "1.0.101"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
		checksum = "89ae43fd86e4158d6db51ad8e2b80f313af9cc74f5c0e03ccb87de09998732de"
		dependencies = [
		@@ -595,5 +604,5 @@ "unicode-ident",
		name = "rayon"
		version = "1.10.0"
		version = "1.11.0"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "b418a60154510ca1a002a752ca9714984e21e4241e804d32555251faf8b78ffa"
		checksum = "368f01d005bf8fd9b1206fb6fa653e6c4a81ceb1466406b81792d87c5677a58f"
		dependencies = [
		@@ -606,5 +615,5 @@ "either",
		name = "rayon-core"
		version = "1.12.1"
		version = "1.13.0"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "1465873a3dfdaa8ae7cb14b4383657caab0b3e8a0aa9ae8e04b044854c8dfce2"
		checksum = "22e18b0f0062d30d4230b2e85ff77fdfe4326feb054b9783a3460d8435c8ab91"
		dependencies = [
		@@ -617,5 +626,5 @@ "crossbeam-deque",
		name = "redox_syscall"
		version = "0.5.13"
		version = "0.5.17"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "0d04b7d0ee6b4a0207a0a7adb104d23ecb0b47d6beae7152d0fa34b692b29fd6"
		checksum = "5407465600fb0548f1442edf71dd20683c6ed326200ace4b1ef0763521bb3b77"
		dependencies = [
		@@ -627,5 +636,5 @@ "bitflags 2.9.1",
		name = "regex"
		version = "1.11.1"
		version = "1.11.2"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "b544ef1b4eac5dc2db33ea63606ae9ffcfac26c1416a2806ae0bf5f56b201191"
		checksum = "23d7fd106d8c02486a8d64e778353d1cffe08ce79ac2e82f540c86d0facf6912"
		dependencies = [
		@@ -640,5 +649,5 @@ "aho-corasick",
		name = "regex-automata"
		version = "0.4.9"
		version = "0.4.10"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "809e8dc61f6de73b46c85f4c96486310fe304c434cfa43669d7b40f711150908"
		checksum = "6b9458fa0bfeeac22b5ca447c63aaf45f28439a709ccd244698632f9aa6394d6"
		dependencies = [
		@@ -652,5 +661,5 @@ "aho-corasick",
		name = "regex-syntax"
		version = "0.8.5"
		version = "0.8.6"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
		checksum = "caf4aa5b0f434c91fe5c7f1ecb6a5ece2130b02ad2a590589dda5146df959001"

		@@ -671,5 +680,5 @@ [[package]]
		name = "rustix"
		version = "1.0.7"
		version = "1.0.8"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "c71e83d6afe7ff64890ec6b71d6a69bb8a610ab78ce364b3352876bb4c801266"
		checksum = "11181fbabf243db407ef8df94a6ce0b2f9a733bd8be4ad02b4eda9602296cac8"
		dependencies = [
		@@ -679,4 +688,4 @@ "bitflags 2.9.1",
		"libc",
		"linux-raw-sys",
		"windows-sys 0.59.0",
		"linux-raw-sys 0.9.4",
		"windows-sys",
		]
		@@ -686,3 +695,3 @@
		name = "rustix"
		version = "1.0.8"
		version = "1.1.0"
		dependencies = [
		@@ -694,3 +703,4 @@ "bitflags 2.9.1",
		"libc",
		"linux-raw-sys",
		"linux-raw-sys 0.11.0",
		"linux-raw-sys 0.9.4",
		"memoffset",
		@@ -703,3 +713,3 @@ "once_cell",
		"tempfile",
		"windows-sys 0.59.0",
		"windows-sys",
		]
		@@ -709,5 +719,5 @@
		name = "rustversion"
		version = "1.0.21"
		version = "1.0.22"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "8a0d197bd2c9dc6e53b84da9556a69ba4cdfab8619eb41a8bd1cc2027a0f6b1d"
		checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"

		@@ -757,5 +767,5 @@ [[package]]
		name = "serde_json"
		version = "1.0.140"
		version = "1.0.143"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
		checksum = "d401abef1d108fbd9cbaebc3e46611f4b1021f714a0597a71f41ee463f5f4a5a"
		dependencies = [
		@@ -795,5 +805,5 @@ "itoa",
		name = "slab"
		version = "0.4.10"
		version = "0.4.11"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "04dc19736151f35336d325007ac991178d504a119863a2fcb3758cdb5e52c50d"
		checksum = "7a2ae44ef20feb57a68b23d846850f861394c2e02dc425a50098ae8c90267589"

		@@ -814,5 +824,5 @@ [[package]]
		name = "syn"
		version = "2.0.103"
		version = "2.0.106"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "e4307e30089d6fd6aff212f2da3a1f9e32f3223b1f010fb09b7c95f90f3ca1e8"
		checksum = "ede7c438028d4436d71104916910f5bb611972c5cfd7f89b8300a8186e6fada6"
		dependencies = [
		@@ -826,5 +836,5 @@ "proc-macro2",
		name = "tempfile"
		version = "3.20.0"
		version = "3.21.0"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "e8a64e3985349f2441a1a9ef0b853f869006c3855f2cda6862a94d26ebb9d6a1"
		checksum = "15b61f8f20e3a6f7e0649d825294eaf317edce30f82cf6026e7e4cb9222a7d1e"
		dependencies = [
		@@ -834,4 +844,4 @@ "fastrand",
		"once_cell",
		"rustix 1.0.7",
		"windows-sys 0.59.0",
		"rustix 1.0.8",
		"windows-sys",
		]
		@@ -873,7 +883,7 @@
		name = "wasi"
		version = "0.14.2+wasi-0.2.4"
		version = "0.14.4+wasi-0.2.4"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "9683f9a5a998d873c0d21fcbe3c083009670149a8fab228644b8bd36b2c48cb3"
		checksum = "88a5f4a424faf49c3c2c344f166f0662341d470ea185e939657aaff130f0ec4a"
		dependencies = [
		"wit-bindgen-rt",
		"wit-bindgen",
		]
		@@ -883,5 +893,5 @@
		name = "wasm-bindgen"
		version = "0.2.100"
		version = "0.2.101"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "1edc8929d7499fc4e8f0be2262a241556cfc54a0bea223790e71446f2aab1ef5"
		checksum = "7e14915cadd45b529bb8d1f343c4ed0ac1de926144b746e2710f9cd05df6603b"
		dependencies = [
		@@ -892,2 +902,3 @@ "cfg-if",
		"wasm-bindgen-macro",
		"wasm-bindgen-shared",
		]
		@@ -897,5 +908,5 @@
		name = "wasm-bindgen-backend"
		version = "0.2.100"
		version = "0.2.101"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "2f0a0651a5c2bc21487bde11ee802ccaf4c51935d0d3d42a6101f98161700bc6"
		checksum = "e28d1ba982ca7923fd01448d5c30c6864d0a14109560296a162f80f305fb93bb"
		dependencies = [
		@@ -912,5 +923,5 @@ "bumpalo",
		name = "wasm-bindgen-macro"
		version = "0.2.100"
		version = "0.2.101"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "7fe63fc6d09ed3792bd0897b314f53de8e16568c2b3f7982f468c0bf9bd0b407"
		checksum = "7c3d463ae3eff775b0c45df9da45d68837702ac35af998361e2c84e7c5ec1b0d"
		dependencies = [
		@@ -923,5 +934,5 @@ "quote",
		name = "wasm-bindgen-macro-support"
		version = "0.2.100"
		version = "0.2.101"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de"
		checksum = "7bb4ce89b08211f923caf51d527662b75bdc9c9c7aab40f86dcb9fb85ac552aa"
		dependencies = [
		@@ -937,5 +948,5 @@ "proc-macro2",
		name = "wasm-bindgen-shared"
		version = "0.2.100"
		version = "0.2.101"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "1a05d73b933a847d6cccdda8f838a22ff101ad9bf93e33684f39c1f5f0eece3d"
		checksum = "f143854a3b13752c6950862c906306adb27c7e839f7414cec8fea35beab624c1"
		dependencies = [
		@@ -947,5 +958,5 @@ "unicode-ident",
		name = "web-sys"
		version = "0.3.77"
		version = "0.3.78"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "33b6dd2ef9186f1f2072e409e99cd22a975331a6b3591b12c764e0e55c60d5d2"
		checksum = "77e4b637749ff0d92b8fad63aa1f7cff3cbe125fd49c175cd6345e7272638b12"
		dependencies = [
		@@ -974,7 +985,7 @@ "js-sys",
		name = "winapi-util"
		version = "0.1.9"
		version = "0.1.11"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
		checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
		dependencies = [
		"windows-sys 0.59.0",
		"windows-sys",
		]
		@@ -989,9 +1000,6 @@
		[[package]]
		name = "windows-sys"
		version = "0.59.0"
		name = "windows-link"
		version = "0.1.3"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
		dependencies = [
		"windows-targets 0.52.6",
		]
		checksum = "5e6ad25900d524eaabdbbb96d20b4311e1e7ae1699af4fb28c17ae66c80d798a"

		@@ -1004,3 +1012,3 @@ [[package]]
		dependencies = [
		"windows-targets 0.53.2",
		"windows-targets 0.53.3",
		]
		@@ -1026,6 +1034,7 @@
		name = "windows-targets"
		version = "0.53.2"
		version = "0.53.3"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "c66f69fcc9ce11da9966ddb31a40968cad001c5bedeb5c2b82ede4253ab48aef"
		checksum = "d5fe6031c4041849d7c496a8ded650796e7b6ecc19df1a431c1a363342e5dc91"
		dependencies = [
		"windows-link",
		"windows_aarch64_gnullvm 0.53.0",
		@@ -1138,8 +1147,5 @@ "windows_aarch64_msvc 0.53.0",
		[[package]]
		name = "wit-bindgen-rt"
		version = "0.39.0"
		name = "wit-bindgen"
		version = "0.45.1"
		source = "registry+https://github.com/rust-lang/crates.io-index"
		checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
		dependencies = [
		"bitflags 2.9.1",
		]
		checksum = "5c573471f125075647d03df72e026074b7203790d41351cd6edc96f46bcccd36"

+11

-7

Cargo.toml

		@@ -16,3 +16,3 @@ # THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
		name = "rustix"
		version = "1.0.8"
		version = "1.1.0"
		authors = [
		@@ -176,3 +176,3 @@ "Dan Gohman <dev@sunfishcode.online>",
		[dev-dependencies.libc]
		version = "0.2.168"
		version = "0.2.171"

		@@ -196,3 +196,3 @@ [dev-dependencies.libc_errno]

		[target.'cfg(all(any(target_os = "android", target_os = "linux"), any(rustix_use_libc, miri, not(all(target_os = "linux", any(target_endian = "little", any(target_arch = "s390x", target_arch = "powerpc")), any(target_arch = "arm", all(target_arch = "aarch64", target_pointer_width = "64"), target_arch = "riscv64", all(rustix_use_experimental_asm, target_arch = "powerpc"), all(rustix_use_experimental_asm, target_arch = "powerpc64"), all(rustix_use_experimental_asm, target_arch = "s390x"), all(rustix_use_experimental_asm, target_arch = "mips"), all(rustix_use_experimental_asm, target_arch = "mips32r6"), all(rustix_use_experimental_asm, target_arch = "mips64"), all(rustix_use_experimental_asm, target_arch = "mips64r6"), target_arch = "x86", all(target_arch = "x86_64", target_pointer_width = "64")))))))'.dependencies.linux-raw-sys]
		[target.'cfg(all(any(target_os = "linux"), any(rustix_use_libc, miri, not(all(target_os = "linux", any(target_endian = "little", any(target_arch = "s390x", target_arch = "powerpc")), any(target_arch = "arm", all(target_arch = "aarch64", target_pointer_width = "64"), target_arch = "riscv64", all(rustix_use_experimental_asm, target_arch = "powerpc"), all(rustix_use_experimental_asm, target_arch = "powerpc64"), all(rustix_use_experimental_asm, target_arch = "s390x"), all(rustix_use_experimental_asm, target_arch = "mips"), all(rustix_use_experimental_asm, target_arch = "mips32r6"), all(rustix_use_experimental_asm, target_arch = "mips64"), all(rustix_use_experimental_asm, target_arch = "mips64r6"), target_arch = "x86", all(target_arch = "x86_64", target_pointer_width = "64")))))))'.dependencies.linux-raw-sys]
		version = "0.9.2"
		@@ -210,3 +210,3 @@ features = [
		[target.'cfg(all(not(rustix_use_libc), not(miri), target_os = "linux", any(target_endian = "little", any(target_arch = "s390x", target_arch = "powerpc")), any(target_arch = "arm", all(target_arch = "aarch64", target_pointer_width = "64"), target_arch = "riscv64", all(rustix_use_experimental_asm, target_arch = "powerpc"), all(rustix_use_experimental_asm, target_arch = "powerpc64"), all(rustix_use_experimental_asm, target_arch = "s390x"), all(rustix_use_experimental_asm, target_arch = "mips"), all(rustix_use_experimental_asm, target_arch = "mips32r6"), all(rustix_use_experimental_asm, target_arch = "mips64"), all(rustix_use_experimental_asm, target_arch = "mips64r6"), target_arch = "x86", all(target_arch = "x86_64", target_pointer_width = "64"))))'.dependencies.libc]
		version = "0.2.168"
		version = "0.2.171"
		optional = true
		@@ -222,4 +222,5 @@ default-features = false
		[target.'cfg(all(not(rustix_use_libc), not(miri), target_os = "linux", any(target_endian = "little", any(target_arch = "s390x", target_arch = "powerpc")), any(target_arch = "arm", all(target_arch = "aarch64", target_pointer_width = "64"), target_arch = "riscv64", all(rustix_use_experimental_asm, target_arch = "powerpc"), all(rustix_use_experimental_asm, target_arch = "powerpc64"), all(rustix_use_experimental_asm, target_arch = "s390x"), all(rustix_use_experimental_asm, target_arch = "mips"), all(rustix_use_experimental_asm, target_arch = "mips32r6"), all(rustix_use_experimental_asm, target_arch = "mips64"), all(rustix_use_experimental_asm, target_arch = "mips64r6"), target_arch = "x86", all(target_arch = "x86_64", target_pointer_width = "64"))))'.dependencies.linux-raw-sys]
		version = "0.9.2"
		version = "0.11.0"
		features = [
		"auxvec",
		"general",
		@@ -234,3 +235,3 @@ "errno",
		[target.'cfg(all(not(windows), any(rustix_use_libc, miri, not(all(target_os = "linux", any(target_endian = "little", any(target_arch = "s390x", target_arch = "powerpc")), any(target_arch = "arm", all(target_arch = "aarch64", target_pointer_width = "64"), target_arch = "riscv64", all(rustix_use_experimental_asm, target_arch = "powerpc"), all(rustix_use_experimental_asm, target_arch = "powerpc64"), all(rustix_use_experimental_asm, target_arch = "s390x"), all(rustix_use_experimental_asm, target_arch = "mips"), all(rustix_use_experimental_asm, target_arch = "mips32r6"), all(rustix_use_experimental_asm, target_arch = "mips64"), all(rustix_use_experimental_asm, target_arch = "mips64r6"), target_arch = "x86", all(target_arch = "x86_64", target_pointer_width = "64")))))))'.dependencies.libc]
		version = "0.2.168"
		version = "0.2.171"
		default-features = false
		@@ -249,3 +250,3 @@
		[target."cfg(windows)".dependencies.windows-sys]
		version = ">=0.52, <0.61"
		version = ">=0.52, <0.62"
		features = [
		@@ -280,4 +281,7 @@ "Win32_Foundation",
		"cfg(linux_raw)",
		"cfg(linux_raw_dep)",
		"cfg(lower_upper_exp_for_non_zero)",
		"cfg(netbsdlike)",
		"cfg(rustc_attrs)",
		"cfg(rustc_diagnostics)",
		"cfg(solarish)",
		@@ -284,0 +288,0 @@ "cfg(staged_api)",

+90

-28

src/backend/libc/c.rs

		@@ -22,46 +22,48 @@ //! Libc and supplemental types and constants.
		// TODO: Upstream these.
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_TSN: c_int = linux_raw_sys::if_ether::ETH_P_TSN as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_ERSPAN2: c_int = linux_raw_sys::if_ether::ETH_P_ERSPAN2 as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_ERSPAN: c_int = linux_raw_sys::if_ether::ETH_P_ERSPAN as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_PROFINET: c_int = linux_raw_sys::if_ether::ETH_P_PROFINET as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_REALTEK: c_int = linux_raw_sys::if_ether::ETH_P_REALTEK as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_ETHERCAT: c_int = linux_raw_sys::if_ether::ETH_P_ETHERCAT as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_PREAUTH: c_int = linux_raw_sys::if_ether::ETH_P_PREAUTH as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_LLDP: c_int = linux_raw_sys::if_ether::ETH_P_LLDP as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_MRP: c_int = linux_raw_sys::if_ether::ETH_P_MRP as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_NCSI: c_int = linux_raw_sys::if_ether::ETH_P_NCSI as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_CFM: c_int = linux_raw_sys::if_ether::ETH_P_CFM as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_IBOE: c_int = linux_raw_sys::if_ether::ETH_P_IBOE as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_HSR: c_int = linux_raw_sys::if_ether::ETH_P_HSR as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_NSH: c_int = linux_raw_sys::if_ether::ETH_P_NSH as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_DSA_8021Q: c_int = linux_raw_sys::if_ether::ETH_P_DSA_8021Q as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_DSA_A5PSW: c_int = linux_raw_sys::if_ether::ETH_P_DSA_A5PSW as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_IFE: c_int = linux_raw_sys::if_ether::ETH_P_IFE as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_CAN: c_int = linux_raw_sys::if_ether::ETH_P_CAN as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_CANXL: c_int = linux_raw_sys::if_ether::ETH_P_CANXL as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_XDSA: c_int = linux_raw_sys::if_ether::ETH_P_XDSA as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_MAP: c_int = linux_raw_sys::if_ether::ETH_P_MAP as _;
		#[cfg(all(linux_kernel, feature = "net"))]
		#[cfg(all(linux_raw_dep, feature = "net"))]
		pub(crate) const ETH_P_MCTP: c_int = linux_raw_sys::if_ether::ETH_P_MCTP as _;
		#[cfg(all(linux_kernel, feature = "mount"))]
		pub(crate) const MS_NOSYMFOLLOW: c_ulong = linux_raw_sys::general::MS_NOSYMFOLLOW as _;

		@@ -93,3 +95,3 @@ #[cfg(all(
		// so libc implementations may leave it undefined or defined to zero.
		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		pub(crate) const O_LARGEFILE: c_int = linux_raw_sys::general::O_LARGEFILE as _;
		@@ -494,3 +496,8 @@
		linux_like,
		not(any(target_os = "android", target_os = "emscripten", target_env = "gnu"))
		linux_raw_dep,
		not(any(
		target_os = "emscripten",
		target_env = "gnu",
		all(target_arch = "loongarch64", target_env = "musl")
		))
		))]
		@@ -513,3 +520,8 @@ mod statx_flags {
		linux_like,
		not(any(target_os = "android", target_os = "emscripten", target_env = "gnu"))
		linux_raw_dep,
		not(any(
		target_os = "emscripten",
		target_env = "gnu",
		all(target_arch = "loongarch64", target_env = "musl")
		))
		))]
		@@ -522,6 +534,56 @@ pub(crate) use statx_flags::*;

		#[cfg(feature = "mm")]
		#[cfg(target_os = "android")]
		pub(crate) const MAP_DROPPABLE: c_int = bitcast!(linux_raw_sys::general::MAP_DROPPABLE);
		// FreeBSD added `timerfd_*` in FreeBSD 14. NetBSD added then in NetBSD 10.
		#[cfg(all(feature = "time", any(target_os = "freebsd", target_os = "netbsd")))]
		syscall!(pub(crate) fn timerfd_create(
		clockid: c_int,
		flags: c_int
		) via SYS_timerfd_create -> c_int);
		#[cfg(all(feature = "time", any(target_os = "freebsd", target_os = "netbsd")))]
		syscall!(pub(crate) fn timerfd_gettime(
		fd: c_int,
		curr_value: *mut itimerspec
		) via SYS_timerfd_gettime -> c_int);
		#[cfg(all(feature = "time", any(target_os = "freebsd", target_os = "netbsd")))]
		syscall!(pub(crate) fn timerfd_settime(
		fd: c_int,
		flags: c_int,
		new_value: *const itimerspec,
		old_value: *mut itimerspec
		) via SYS_timerfd_settime -> c_int);

		#[cfg(all(feature = "time", target_os = "illumos"))]
		extern "C" {
		pub(crate) fn timerfd_create(clockid: c_int, flags: c_int) -> c_int;
		pub(crate) fn timerfd_gettime(fd: c_int, curr_value: *mut itimerspec) -> c_int;
		pub(crate) fn timerfd_settime(
		fd: c_int,
		flags: c_int,
		new_value: *const itimerspec,
		old_value: *mut itimerspec,
		) -> c_int;
		}

		// illumos and NetBSD timerfd support.
		// Submitted upstream in <https://github.com/rust-lang/libc/pull/4333>.

		// <https://code.illumos.org/plugins/gitiles/illumos-gate/+/refs/heads/master/usr/src/uts/common/sys/timerfd.h#34>
		#[cfg(all(feature = "time", target_os = "illumos"))]
		pub(crate) const TFD_CLOEXEC: i32 = 0o2000000;
		#[cfg(all(feature = "time", target_os = "illumos"))]
		pub(crate) const TFD_NONBLOCK: i32 = 0o4000;
		#[cfg(all(feature = "time", target_os = "illumos"))]
		pub(crate) const TFD_TIMER_ABSTIME: i32 = 1 << 0;
		#[cfg(all(feature = "time", target_os = "illumos"))]
		pub(crate) const TFD_TIMER_CANCEL_ON_SET: i32 = 1 << 1;

		// <https://nxr.netbsd.org/xref/src/sys/sys/timerfd.h#44>
		#[cfg(all(feature = "time", target_os = "netbsd"))]
		pub(crate) const TFD_CLOEXEC: i32 = O_CLOEXEC;
		#[cfg(all(feature = "time", target_os = "netbsd"))]
		pub(crate) const TFD_NONBLOCK: i32 = O_NONBLOCK;
		#[cfg(all(feature = "time", target_os = "netbsd"))]
		pub(crate) const TFD_TIMER_ABSTIME: i32 = O_WRONLY;
		#[cfg(all(feature = "time", target_os = "netbsd"))]
		pub(crate) const TFD_TIMER_CANCEL_ON_SET: i32 = O_RDWR;

		#[cfg(test)]
		@@ -528,0 +590,0 @@ mod tests {

+1

-9

src/backend/libc/fs/dir.rs

		@@ -27,9 +27,3 @@ #[cfg(not(any(
		use crate::fs::{fstatfs, StatFs};
		#[cfg(not(any(
		solarish,
		target_os = "haiku",
		target_os = "redox",
		target_os = "vita",
		target_os = "wasi"
		)))]
		#[cfg(not(any(solarish, target_os = "vita", target_os = "wasi")))]
		use crate::fs::{fstatvfs, StatVfs};
		@@ -247,5 +241,3 @@ use crate::io;
		solarish,
		target_os = "haiku",
		target_os = "horizon",
		target_os = "redox",
		target_os = "vita",
		@@ -252,0 +244,0 @@ target_os = "wasi"

+5

-2

src/backend/libc/fs/mod.rs

		@@ -19,7 +19,10 @@ #[cfg(all(feature = "alloc", not(any(target_os = "espidf", target_os = "redox"))))]
		// TODO: Fix linux-raw-sys to define ioctl codes for sparc.
		#[cfg(all(linux_kernel, any(target_arch = "sparc", target_arch = "sparc64")))]
		#[cfg(all(linux_raw_dep, any(target_arch = "sparc", target_arch = "sparc64")))]
		pub(crate) const EXT4_IOC_RESIZE_FS: crate::ioctl::Opcode = 0x8008_6610;

		#[cfg(all(linux_kernel, not(any(target_arch = "sparc", target_arch = "sparc64"))))]
		#[cfg(all(
		linux_raw_dep,
		not(any(target_arch = "sparc", target_arch = "sparc64"))
		))]
		pub(crate) const EXT4_IOC_RESIZE_FS: crate::ioctl::Opcode =
		linux_raw_sys::ioctl::EXT4_IOC_RESIZE_FS as crate::ioctl::Opcode;

+7

-4

src/backend/libc/fs/types.rs

		@@ -739,2 +739,5 @@ use crate::backend::c;
		const FUTURE_WRITE = bitcast!(c::F_SEAL_FUTURE_WRITE);
		/// `F_SEAL_EXEC` (since Linux 6.3)
		#[cfg(linux_kernel)]
		const EXEC = bitcast!(c::F_SEAL_EXEC);

		@@ -846,3 +849,3 @@ /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>

		#[cfg(not(any(target_os = "haiku", target_os = "redox", target_os = "wasi")))]
		#[cfg(not(target_os = "wasi"))]
		bitflags! {
		@@ -879,7 +882,7 @@ /// `ST_*` constants for use with [`StatVfs`].
		/// `ST_NOSUID`
		#[cfg(not(any(target_os = "espidf", target_os = "horizon", target_os = "vita")))]
		#[cfg(not(any(target_os = "espidf", target_os = "haiku", target_os = "horizon", target_os = "redox", target_os = "vita")))]
		const NOSUID = c::ST_NOSUID as u64;

		/// `ST_RDONLY`
		#[cfg(not(any(target_os = "espidf", target_os = "horizon", target_os = "vita")))]
		#[cfg(not(any(target_os = "espidf", target_os = "haiku", target_os = "horizon", target_os = "redox", target_os = "vita")))]
		const RDONLY = c::ST_RDONLY as u64;
		@@ -1080,3 +1083,3 @@
		/// [`fstatvfs`]: crate::fs::fstatvfs
		#[cfg(not(any(target_os = "haiku", target_os = "redox", target_os = "wasi")))]
		#[cfg(not(target_os = "wasi"))]
		#[allow(missing_docs)]
		@@ -1083,0 +1086,0 @@ pub struct StatVfs {

+3

-3

src/backend/libc/io/syscalls.rs

		@@ -16,3 +16,3 @@ //! libc syscalls supporting `rustix::io`.
		use crate::io::DupFlags;
		#[cfg(linux_kernel)]
		#[cfg(all(linux_kernel, not(target_os = "android")))]
		use crate::io::ReadWriteFlags;
		@@ -154,3 +154,3 @@ use crate::io::{self, FdFlags};

		#[cfg(linux_kernel)]
		#[cfg(all(linux_kernel, not(target_os = "android")))]
		pub(crate) fn preadv2(
		@@ -175,3 +175,3 @@ fd: BorrowedFd<'_>,

		#[cfg(linux_kernel)]
		#[cfg(all(linux_kernel, not(target_os = "android")))]
		pub(crate) fn pwritev2(
		@@ -178,0 +178,0 @@ fd: BorrowedFd<'_>,

+6

-6

src/backend/libc/io/types.rs

		@@ -20,3 +20,3 @@ use crate::backend::c;

		#[cfg(linux_kernel)]
		#[cfg(all(linux_kernel, not(target_os = "android")))]
		bitflags! {
		@@ -31,11 +31,11 @@ /// `RWF_*` constants for use with [`preadv2`] and [`pwritev2`].
		/// `RWF_DSYNC` (since Linux 4.7)
		const DSYNC = linux_raw_sys::general::RWF_DSYNC;
		const DSYNC = libc::RWF_DSYNC as u32;
		/// `RWF_HIPRI` (since Linux 4.6)
		const HIPRI = linux_raw_sys::general::RWF_HIPRI;
		const HIPRI = libc::RWF_HIPRI as u32;
		/// `RWF_SYNC` (since Linux 4.7)
		const SYNC = linux_raw_sys::general::RWF_SYNC;
		const SYNC = libc::RWF_SYNC as u32;
		/// `RWF_NOWAIT` (since Linux 4.14)
		const NOWAIT = linux_raw_sys::general::RWF_NOWAIT;
		const NOWAIT = libc::RWF_NOWAIT as u32;
		/// `RWF_APPEND` (since Linux 4.16)
		const APPEND = linux_raw_sys::general::RWF_APPEND;
		const APPEND = libc::RWF_APPEND as u32;

		@@ -42,0 +42,0 @@ /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>

+6

-6

src/backend/libc/mm/types.rs

		@@ -47,15 +47,15 @@ use crate::backend::c;
		/// `PROT_SEM`
		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		const SEM = linux_raw_sys::general::PROT_SEM;
		/// `PROT_BTI`
		#[cfg(all(linux_kernel, target_arch = "aarch64"))]
		#[cfg(all(linux_raw_dep, target_arch = "aarch64"))]
		const BTI = linux_raw_sys::general::PROT_BTI;
		/// `PROT_MTE`
		#[cfg(all(linux_kernel, target_arch = "aarch64"))]
		#[cfg(all(linux_raw_dep, target_arch = "aarch64"))]
		const MTE = linux_raw_sys::general::PROT_MTE;
		/// `PROT_SAO`
		#[cfg(all(linux_kernel, any(target_arch = "powerpc", target_arch = "powerpc64")))]
		#[cfg(all(linux_raw_dep, any(target_arch = "powerpc", target_arch = "powerpc64")))]
		const SAO = linux_raw_sys::general::PROT_SAO;
		/// `PROT_ADI`
		#[cfg(all(linux_kernel, any(target_arch = "sparc", target_arch = "sparc64")))]
		#[cfg(all(linux_raw_dep, any(target_arch = "sparc", target_arch = "sparc64")))]
		const ADI = linux_raw_sys::general::PROT_ADI;
		@@ -256,3 +256,3 @@
		/// `MAP_DROPPABLE`
		#[cfg(linux_kernel)]
		#[cfg(all(linux_kernel, not(target_os = "android")))]
		const DROPPABLE = bitcast!(c::MAP_DROPPABLE);
		@@ -259,0 +259,0 @@

+3

-0

src/backend/libc/mount/types.rs

		@@ -59,2 +59,5 @@ use crate::backend::c;

		/// `MS_NOSYMFOLLOW`
		const NOSYMFOLLOW = c::MS_NOSYMFOLLOW;

		/// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
		@@ -61,0 +64,0 @@ const _ = !0;

+7

-12

src/backend/libc/net/netdevice.rs

		@@ -5,4 +5,2 @@ //! Wrappers for netdevice ioctls.

		#[cfg(feature = "alloc")]
		use crate::alloc::string::String;
		use crate::backend::c;
		@@ -12,5 +10,3 @@ use crate::backend::io::syscalls::ioctl;
		use crate::io;
		#[cfg(feature = "alloc")]
		use c::SIOCGIFNAME;
		use c::{__c_anonymous_ifr_ifru, c_char, ifreq, IFNAMSIZ, SIOCGIFINDEX};
		use c::{__c_anonymous_ifr_ifru, c_char, ifreq, IFNAMSIZ, SIOCGIFINDEX, SIOCGIFNAME};

		@@ -36,4 +32,3 @@ pub(crate) fn name_to_index(fd: BorrowedFd<'_>, if_name: &str) -> io::Result<u32> {

		#[cfg(feature = "alloc")]
		pub(crate) fn index_to_name(fd: BorrowedFd<'_>, index: u32) -> io::Result<String> {
		pub(crate) fn index_to_name(fd: BorrowedFd<'_>, index: u32) -> io::Result<(usize, [u8; 16])> {
		let mut ifreq = ifreq {
		@@ -49,8 +44,8 @@ ifr_name: [0; 16],
		if let Some(nul_byte) = ifreq.ifr_name.iter().position(\|char\| *char == 0) {
		let name: String = ifreq.ifr_name[..nul_byte]
		.iter()
		.map(\|v\| *v as u8 as char)
		.collect();
		let mut buf = [0u8; 16];
		ifreq.ifr_name.iter().enumerate().for_each(\|(idx, c)\| {
		buf[idx] = *c as u8;
		});

		Ok(name)
		Ok((nul_byte, buf))
		} else {
		@@ -57,0 +52,0 @@ Err(io::Errno::INVAL)

+68

-3

src/backend/libc/net/sockopt.rs

		@@ -17,2 +17,4 @@ //! libc syscalls supporting `rustix::net::sockopt`.
		use crate::net::sockopt::Timeout;
		#[cfg(linux_kernel)]
		use crate::net::sockopt::{Ipv4PathMtuDiscovery, Ipv6PathMtuDiscovery};
		#[cfg(target_os = "linux")]
		@@ -54,5 +56,9 @@ use crate::net::xdp::{XdpMmapOffsets, XdpOptionsFlags, XdpRingOffset, XdpStatistics, XdpUmemReg};
		use crate::net::SocketAddrV4;
		#[cfg(all(target_os = "linux", feature = "time"))]
		use crate::net::TxTimeFlags;
		use crate::net::{Ipv4Addr, Ipv6Addr, SocketType};
		#[cfg(linux_kernel)]
		use crate::net::{SocketAddrV6, UCred};
		#[cfg(all(target_os = "linux", feature = "time"))]
		use crate::time::ClockId;
		use crate::utils::as_mut_ptr;
		@@ -81,3 +87,3 @@ #[cfg(feature = "alloc")]
		use core::time::Duration;
		#[cfg(target_os = "linux")]
		#[cfg(linux_raw_dep)]
		use linux_raw_sys::xdp::{xdp_mmap_offsets, xdp_statistics, xdp_statistics_v1};
		@@ -506,3 +512,33 @@

		#[cfg(linux_kernel)]
		#[inline]
		pub(crate) fn set_ip_mtu_discover(
		fd: BorrowedFd<'_>,
		value: Ipv4PathMtuDiscovery,
		) -> io::Result<()> {
		setsockopt(fd, c::IPPROTO_IP, c::IP_MTU_DISCOVER, value)
		}

		#[cfg(linux_kernel)]
		#[inline]
		pub(crate) fn ip_mtu_discover(fd: BorrowedFd<'_>) -> io::Result<Ipv4PathMtuDiscovery> {
		getsockopt(fd, c::IPPROTO_IP, c::IP_MTU_DISCOVER)
		}

		#[cfg(linux_kernel)]
		#[inline]
		pub(crate) fn set_ipv6_mtu_discover(
		fd: BorrowedFd<'_>,
		value: Ipv6PathMtuDiscovery,
		) -> io::Result<()> {
		setsockopt(fd, c::IPPROTO_IPV6, c::IPV6_MTU_DISCOVER, value)
		}

		#[cfg(linux_kernel)]
		#[inline]
		pub(crate) fn ipv6_mtu_discover(fd: BorrowedFd<'_>) -> io::Result<Ipv6PathMtuDiscovery> {
		getsockopt(fd, c::IPPROTO_IPV6, c::IPV6_MTU_DISCOVER)
		}

		#[inline]
		pub(crate) fn set_ip_multicast_if(fd: BorrowedFd<'_>, value: &Ipv4Addr) -> io::Result<()> {
		@@ -1065,2 +1101,31 @@ setsockopt(fd, c::IPPROTO_IP, c::IP_MULTICAST_IF, to_imr_addr(value))

		#[cfg(all(target_os = "linux", feature = "time"))]
		#[inline]
		pub(crate) fn set_txtime(
		fd: BorrowedFd<'_>,
		clockid: ClockId,
		flags: TxTimeFlags,
		) -> io::Result<()> {
		setsockopt(
		fd,
		c::SOL_SOCKET,
		c::SO_TXTIME,
		c::sock_txtime {
		clockid: clockid as _,
		flags: flags.bits(),
		},
		)
		}

		#[cfg(all(target_os = "linux", feature = "time"))]
		#[inline]
		pub(crate) fn get_txtime(fd: BorrowedFd<'_>) -> io::Result<(ClockId, TxTimeFlags)> {
		let txtime: c::sock_txtime = getsockopt(fd, c::SOL_SOCKET, c::SO_TXTIME)?;

		Ok((
		txtime.clockid.try_into().map_err(\|_\| io::Errno::RANGE)?,
		TxTimeFlags::from_bits(txtime.flags).ok_or(io::Errno::RANGE)?,
		))
		}

		#[cfg(target_os = "linux")]
		@@ -1096,3 +1161,3 @@ #[inline]

		#[cfg(target_os = "linux")]
		#[cfg(linux_raw_dep)]
		#[inline]
		@@ -1184,3 +1249,3 @@ pub(crate) fn xdp_mmap_offsets(fd: BorrowedFd<'_>) -> io::Result<XdpMmapOffsets> {

		#[cfg(target_os = "linux")]
		#[cfg(linux_raw_dep)]
		#[inline]
		@@ -1187,0 +1252,0 @@ pub(crate) fn xdp_statistics(fd: BorrowedFd<'_>) -> io::Result<XdpStatistics> {

+14

-1

src/backend/libc/termios/syscalls.rs

		@@ -496,3 +496,16 @@ //! libc syscalls supporting `rustix::termios`.
		pub(crate) fn cfmakeraw(termios: &mut Termios) {
		unsafe { c::cfmakeraw(as_mut_ptr(termios).cast()) }
		unsafe {
		// On AIX, cfmakeraw() has a return type of 'int' instead of 'void'.
		// If the argument 'termios' is NULL, it returns -1; otherwise, it returns 0.
		// We believe it is safe to ignore the return value.
		#[cfg(target_os = "aix")]
		{
		let _ = c::cfmakeraw(as_mut_ptr(termios).cast());
		}

		#[cfg(not(target_os = "aix"))]
		{
		c::cfmakeraw(as_mut_ptr(termios).cast());
		}
		}
		}
		@@ -499,0 +512,0 @@

+20

-8

src/backend/libc/thread/syscalls.rs

		@@ -401,5 +401,5 @@ //! libc syscalls supporting `rustix::thread`.
		pub(crate) fn setresuid_thread(
		ruid: crate::ugid::Uid,
		euid: crate::ugid::Uid,
		suid: crate::ugid::Uid,
		ruid: Option<crate::ugid::Uid>,
		euid: Option<crate::ugid::Uid>,
		suid: Option<crate::ugid::Uid>,
		) -> io::Result<()> {
		@@ -415,3 +415,9 @@ #[cfg(any(target_arch = "x86", target_arch = "arm", target_arch = "sparc"))]

		unsafe { ret(setresuid(ruid.as_raw(), euid.as_raw(), suid.as_raw())) }
		unsafe {
		ret(setresuid(
		ruid.map_or(-1_i32 as u32, \|x\| x.as_raw()),
		euid.map_or(-1_i32 as u32, \|x\| x.as_raw()),
		suid.map_or(-1_i32 as u32, \|x\| x.as_raw()),
		))
		}
		}
		@@ -432,5 +438,5 @@
		pub(crate) fn setresgid_thread(
		rgid: crate::ugid::Gid,
		egid: crate::ugid::Gid,
		sgid: crate::ugid::Gid,
		rgid: Option<crate::ugid::Gid>,
		egid: Option<crate::ugid::Gid>,
		sgid: Option<crate::ugid::Gid>,
		) -> io::Result<()> {
		@@ -446,3 +452,9 @@ #[cfg(any(target_arch = "x86", target_arch = "arm", target_arch = "sparc"))]

		unsafe { ret(setresgid(rgid.as_raw(), egid.as_raw(), sgid.as_raw())) }
		unsafe {
		ret(setresgid(
		rgid.map_or(-1_i32 as u32, \|x\| x.as_raw()),
		egid.map_or(-1_i32 as u32, \|x\| x.as_raw()),
		sgid.map_or(-1_i32 as u32, \|x\| x.as_raw()),
		))
		}
		}
		@@ -449,0 +461,0 @@

+52

-10

src/backend/libc/time/syscalls.rs

		@@ -5,3 +5,9 @@ //! libc syscalls supporting `rustix::time`.
		use crate::backend::conv::ret;
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[cfg(any(all(target_env = "gnu", fix_y2038), not(fix_y2038)))]
		@@ -25,3 +31,9 @@ use crate::backend::time::types::LibcItimerspec;
		use core::mem::MaybeUninit;
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		use {
		@@ -39,6 +51,6 @@ crate::backend::conv::{borrowed_fd, ret_owned_fd},
		weak!(fn __clock_getres64(c::clockid_t, *mut LibcTimespec) -> c::c_int);
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(linux_kernel, target_os = "freebsd", target_os = "fuchsia"))]
		#[cfg(all(target_env = "gnu", fix_y2038))]
		weak!(fn __timerfd_gettime64(c::c_int, *mut LibcItimerspec) -> c::c_int);
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(linux_kernel, target_os = "freebsd", target_os = "fuchsia"))]
		#[cfg(all(target_env = "gnu", fix_y2038))]
		@@ -178,3 +190,3 @@ weak!(fn __timerfd_settime64(c::c_int, c::c_int, const LibcItimerspec, mut LibcItimerspec) -> c::c_int);

		#[cfg(linux_kernel)]
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		DynamicClockId::RealtimeAlarm => c::CLOCK_REALTIME_ALARM,
		@@ -305,3 +317,9 @@

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		pub(crate) fn timerfd_create(id: TimerfdClockId, flags: TimerfdFlags) -> io::Result<OwnedFd> {
		@@ -311,3 +329,9 @@ unsafe { ret_owned_fd(c::timerfd_create(id as c::clockid_t, bitflags_bits!(flags))) }

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		pub(crate) fn timerfd_settime(
		@@ -354,3 +378,9 @@ fd: BorrowedFd<'_>,

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[cfg(fix_y2038)]
		@@ -422,3 +452,9 @@ fn timerfd_settime_old(

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		pub(crate) fn timerfd_gettime(fd: BorrowedFd<'_>) -> io::Result<Itimerspec> {
		@@ -454,3 +490,9 @@ // Old 32-bit version: libc has `timerfd_gettime` but it is not y2038 safe

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[cfg(fix_y2038)]
		@@ -457,0 +499,0 @@ fn timerfd_gettime_old(fd: BorrowedFd<'_>) -> io::Result<Itimerspec> {

+102

-15

src/backend/libc/time/types.rs

		@@ -1,13 +0,43 @@
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		use crate::backend::c;
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		use crate::time::Itimerspec;
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[cfg(fix_y2038)]
		use crate::timespec::LibcTimespec;
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		use bitflags::bitflags;

		/// On most platforms, `LibcItimerspec` is just `Itimerspec`.
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[cfg(not(fix_y2038))]
		@@ -18,3 +48,9 @@ pub(crate) type LibcItimerspec = Itimerspec;
		/// define our own struct, with bidirectional `From` impls.
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[cfg(fix_y2038)]
		@@ -28,3 +64,9 @@ #[repr(C)]

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[cfg(fix_y2038)]
		@@ -41,3 +83,9 @@ impl From<LibcItimerspec> for Itimerspec {

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[cfg(fix_y2038)]
		@@ -54,3 +102,9 @@ impl From<Itimerspec> for LibcItimerspec {

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[cfg(not(fix_y2038))]
		@@ -65,3 +119,9 @@ pub(crate) fn as_libc_itimerspec_ptr(itimerspec: &Itimerspec) -> *const c::itimerspec {

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[cfg(not(fix_y2038))]
		@@ -78,3 +138,9 @@ pub(crate) fn as_libc_itimerspec_mut_ptr(

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		bitflags! {
		@@ -100,3 +166,9 @@ /// `TFD_*` flags for use with [`timerfd_create`].

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		bitflags! {
		@@ -114,3 +186,3 @@ /// `TFD_TIMER_*` flags for use with [`timerfd_settime`].
		/// `TFD_TIMER_CANCEL_ON_SET`
		#[cfg(linux_kernel)]
		#[cfg(not(target_os = "fuchsia"))]
		#[doc(alias = "TFD_TIMER_CANCEL_ON_SET")]
		@@ -127,3 +199,9 @@ const CANCEL_ON_SET = bitcast!(c::TFD_TIMER_CANCEL_ON_SET);
		/// [`timerfd_create`]: crate::time::timerfd_create
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
		@@ -158,2 +236,3 @@ #[repr(u32)]
		#[doc(alias = "CLOCK_BOOTTIME")]
		#[cfg(any(linux_kernel, target_os = "fuchsia", target_os = "openbsd"))]
		Boottime = bitcast!(c::CLOCK_BOOTTIME),
		@@ -166,2 +245,3 @@
		/// Use of this clock requires the `CAP_WAKE_ALARM` Linux capability.
		#[cfg(linux_kernel)]
		#[doc(alias = "CLOCK_REALTIME_ALARM")]
		@@ -175,2 +255,3 @@ RealtimeAlarm = bitcast!(c::CLOCK_REALTIME_ALARM),
		/// Use of this clock requires the `CAP_WAKE_ALARM` Linux capability.
		#[cfg(any(linux_kernel, target_os = "cygwin", target_os = "fuchsia"))]
		#[doc(alias = "CLOCK_BOOTTIME_ALARM")]
		@@ -185,3 +266,9 @@ BoottimeAlarm = bitcast!(c::CLOCK_BOOTTIME_ALARM),

		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		#[test]
		@@ -188,0 +275,0 @@ fn test_types() {

+25

-9

src/backend/linux_raw/c.rs

		@@ -13,3 +13,3 @@ //! Adapt the Linux API to resemble a POSIX-style libc API.
		pub(crate) use linux_raw_sys::general::{__kernel_fd_set as fd_set, __FD_SETSIZE as FD_SETSIZE};
		pub(crate) use linux_raw_sys::ioctl::{FIONBIO, FIONREAD};
		pub(crate) use linux_raw_sys::ioctl::{FIOCLEX, FIONBIO, FIONCLEX, FIONREAD};
		// Import the kernel's `uid_t` and `gid_t` if they're 32-bit.
		@@ -88,10 +88,13 @@ #[cfg(feature = "thread")]
		AF_LLC, AF_NETBEUI, AF_NETLINK, AF_NETROM, AF_PACKET, AF_PHONET, AF_PPPOX, AF_RDS, AF_ROSE,
		AF_RXRPC, AF_SECURITY, AF_SNA, AF_TIPC, AF_UNIX, AF_UNSPEC, AF_WANPIPE, AF_X25, AF_XDP,
		IP6T_SO_ORIGINAL_DST, IPPROTO_FRAGMENT, IPPROTO_ICMPV6, IPPROTO_MH, IPPROTO_ROUTING,
		IPV6_ADD_MEMBERSHIP, IPV6_DROP_MEMBERSHIP, IPV6_FREEBIND, IPV6_MULTICAST_HOPS,
		IPV6_MULTICAST_LOOP, IPV6_RECVTCLASS, IPV6_TCLASS, IPV6_UNICAST_HOPS, IPV6_V6ONLY,
		IP_ADD_MEMBERSHIP, IP_ADD_SOURCE_MEMBERSHIP, IP_DROP_MEMBERSHIP, IP_DROP_SOURCE_MEMBERSHIP,
		IP_FREEBIND, IP_MULTICAST_LOOP, IP_MULTICAST_TTL, IP_RECVTOS, IP_TOS, IP_TTL,
		MSG_CMSG_CLOEXEC, MSG_CONFIRM, MSG_CTRUNC, MSG_DONTROUTE, MSG_DONTWAIT, MSG_EOR,
		MSG_ERRQUEUE, MSG_MORE, MSG_NOSIGNAL, MSG_OOB, MSG_PEEK, MSG_TRUNC, MSG_WAITALL,
		AF_RXRPC, AF_SECURITY, AF_SNA, AF_TIPC, AF_UNIX, AF_UNSPEC, AF_VSOCK, AF_WANPIPE, AF_X25,
		AF_XDP, IP6T_SO_ORIGINAL_DST, IPPROTO_FRAGMENT, IPPROTO_ICMPV6, IPPROTO_MH,
		IPPROTO_ROUTING, IPV6_ADD_MEMBERSHIP, IPV6_DROP_MEMBERSHIP, IPV6_FREEBIND,
		IPV6_MULTICAST_HOPS, IPV6_MULTICAST_LOOP, IPV6_PMTUDISC_DO, IPV6_PMTUDISC_DONT,
		IPV6_PMTUDISC_INTERFACE, IPV6_PMTUDISC_OMIT, IPV6_PMTUDISC_PROBE, IPV6_PMTUDISC_WANT,
		IPV6_RECVTCLASS, IPV6_TCLASS, IPV6_UNICAST_HOPS, IPV6_V6ONLY, IP_ADD_MEMBERSHIP,
		IP_ADD_SOURCE_MEMBERSHIP, IP_DROP_MEMBERSHIP, IP_DROP_SOURCE_MEMBERSHIP, IP_FREEBIND,
		IP_MULTICAST_LOOP, IP_MULTICAST_TTL, IP_PMTUDISC_DO, IP_PMTUDISC_DONT,
		IP_PMTUDISC_INTERFACE, IP_PMTUDISC_OMIT, IP_PMTUDISC_PROBE, IP_PMTUDISC_WANT, IP_RECVTOS,
		IP_TOS, IP_TTL, MSG_CMSG_CLOEXEC, MSG_CONFIRM, MSG_CTRUNC, MSG_DONTROUTE, MSG_DONTWAIT,
		MSG_EOR, MSG_ERRQUEUE, MSG_MORE, MSG_NOSIGNAL, MSG_OOB, MSG_PEEK, MSG_TRUNC, MSG_WAITALL,
		SCM_CREDENTIALS, SCM_RIGHTS, SHUT_RD, SHUT_RDWR, SHUT_WR, SOCK_DGRAM, SOCK_RAW, SOCK_RDM,
		@@ -119,2 +122,15 @@ SOCK_SEQPACKET, SOCK_STREAM, SOL_SOCKET, SOL_XDP, SO_ACCEPTCONN, SO_BROADCAST, SO_COOKIE,

		#[cfg(feature = "time")]
		pub use linux_raw_sys::general::__kernel_clockid_t as clockid_t;

		#[cfg(all(feature = "net", feature = "time"))]
		pub use linux_raw_sys::net::{sock_txtime, SCM_TXTIME, SO_TXTIME};

		#[cfg(all(feature = "net", feature = "time"))]
		pub(crate) const SOF_TXTIME_DEADLINE_MODE: u32 =
		linux_raw_sys::net::txtime_flags::SOF_TXTIME_DEADLINE_MODE as _;
		#[cfg(all(feature = "net", feature = "time"))]
		pub(crate) const SOF_TXTIME_REPORT_ERRORS: u32 =
		linux_raw_sys::net::txtime_flags::SOF_TXTIME_REPORT_ERRORS as _;

		// Cast away bindgen's `enum` type to make these consistent with the other
		@@ -121,0 +137,0 @@ // `setsockopt`/`getsockopt` level values.

+16

-0

src/backend/linux_raw/conv.rs

		@@ -845,2 +845,10 @@ //! Convert values to [`ArgReg`] and from [`RetReg`].

		#[cfg(feature = "thread")]
		impl<'a, Num: ArgNumber> From<Option<crate::ugid::Uid>> for ArgReg<'a, Num> {
		#[inline]
		fn from(t: Option<crate::ugid::Uid>) -> Self {
		c_uint(t.map_or(-1_i32 as u32, \|x\| x.as_raw()))
		}
		}

		#[cfg(any(feature = "process", feature = "thread"))]
		@@ -854,2 +862,10 @@ impl<'a, Num: ArgNumber> From<crate::ugid::Gid> for ArgReg<'a, Num> {

		#[cfg(feature = "thread")]
		impl<'a, Num: ArgNumber> From<Option<crate::ugid::Gid>> for ArgReg<'a, Num> {
		#[inline]
		fn from(t: Option<crate::ugid::Gid>) -> Self {
		c_uint(t.map_or(-1_i32 as u32, \|x\| x.as_raw()))
		}
		}

		#[cfg(feature = "runtime")]
		@@ -856,0 +872,0 @@ impl<'a, Num: ArgNumber> From<crate::runtime::How> for ArgReg<'a, Num> {

+2

-0

src/backend/linux_raw/fs/types.rs

		@@ -499,2 +499,4 @@ use crate::ffi;
		const FUTURE_WRITE = linux_raw_sys::general::F_SEAL_FUTURE_WRITE;
		/// `F_SEAL_EXEC` (since Linux 6.3)
		const EXEC = linux_raw_sys::general::F_SEAL_EXEC;

		@@ -501,0 +503,0 @@ /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>

+6

-10

src/backend/linux_raw/net/netdevice.rs

		@@ -11,8 +11,4 @@ //! Wrappers for netdevice ioctls.
		use linux_raw_sys::ctypes::c_char;
		use linux_raw_sys::ioctl::SIOCGIFINDEX;
		#[cfg(feature = "alloc")]
		use linux_raw_sys::ioctl::SIOCGIFNAME;
		use linux_raw_sys::ioctl::{SIOCGIFINDEX, SIOCGIFNAME};
		use linux_raw_sys::net::{ifreq, ifreq__bindgen_ty_1, ifreq__bindgen_ty_2, IFNAMSIZ};
		#[cfg(feature = "alloc")]
		use {alloc::borrow::ToOwned, alloc::string::String};

		@@ -44,4 +40,3 @@ pub(crate) fn name_to_index(fd: BorrowedFd<'_>, if_name: &str) -> io::Result<u32> {

		#[cfg(feature = "alloc")]
		pub(crate) fn index_to_name(fd: BorrowedFd<'_>, index: u32) -> io::Result<String> {
		pub(crate) fn index_to_name(fd: BorrowedFd<'_>, index: u32) -> io::Result<(usize, [u8; 16])> {
		let mut ifreq = ifreq {
		@@ -66,5 +61,6 @@ ifr_ifrn: ifreq__bindgen_ty_1 { ifrn_name: [0; 16] },

		str::from_utf8(ifrn_name)
		.map_err(\|_\| io::Errno::ILSEQ)
		.map(ToOwned::to_owned)
		let mut name_buf = [0; 16];
		name_buf[..ifrn_name.len()].copy_from_slice(ifrn_name);

		Ok((nul_byte, name_buf))
		} else {
		@@ -71,0 +67,0 @@ Err(io::Errno::INVAL)

+63

-2

src/backend/linux_raw/net/sockopt.rs

		@@ -10,2 +10,4 @@ //! linux_raw syscalls supporting `rustix::net::sockopt`.
		use crate::backend::conv::{by_mut, c_uint, ret, socklen_t};
		#[cfg(all(target_os = "linux", feature = "time"))]
		use crate::clockid::ClockId;
		use crate::fd::BorrowedFd;
		@@ -15,5 +17,7 @@ #[cfg(feature = "alloc")]
		use crate::io;
		use crate::net::sockopt::Timeout;
		use crate::net::sockopt::{Ipv4PathMtuDiscovery, Ipv6PathMtuDiscovery, Timeout};
		#[cfg(target_os = "linux")]
		use crate::net::xdp::{XdpMmapOffsets, XdpOptionsFlags, XdpRingOffset, XdpStatistics, XdpUmemReg};
		#[cfg(all(target_os = "linux", feature = "time"))]
		use crate::net::TxTimeFlags;
		use crate::net::{
		@@ -30,3 +34,5 @@ AddressFamily, Ipv4Addr, Ipv6Addr, Protocol, RawProtocol, SocketAddrBuf, SocketAddrV4,
		use linux_raw_sys::general::{__kernel_old_timeval, __kernel_sock_timeval};
		use linux_raw_sys::net::{IPV6_MTU, IPV6_MULTICAST_IF, IP_MTU, IP_MULTICAST_IF};
		use linux_raw_sys::net::{
		IPV6_MTU, IPV6_MTU_DISCOVER, IPV6_MULTICAST_IF, IP_MTU, IP_MTU_DISCOVER, IP_MULTICAST_IF,
		};
		#[cfg(target_os = "linux")]
		@@ -469,2 +475,28 @@ use linux_raw_sys::xdp::{xdp_mmap_offsets, xdp_statistics, xdp_statistics_v1};
		#[inline]
		pub(crate) fn set_ip_mtu_discover(
		fd: BorrowedFd<'_>,
		value: Ipv4PathMtuDiscovery,
		) -> io::Result<()> {
		setsockopt(fd, c::IPPROTO_IP, IP_MTU_DISCOVER, value)
		}

		#[inline]
		pub(crate) fn ip_mtu_discover(fd: BorrowedFd<'_>) -> io::Result<Ipv4PathMtuDiscovery> {
		getsockopt(fd, c::IPPROTO_IP, IP_MTU_DISCOVER)
		}

		#[inline]
		pub(crate) fn set_ipv6_mtu_discover(
		fd: BorrowedFd<'_>,
		value: Ipv6PathMtuDiscovery,
		) -> io::Result<()> {
		setsockopt(fd, c::IPPROTO_IPV6, IPV6_MTU_DISCOVER, value)
		}

		#[inline]
		pub(crate) fn ipv6_mtu_discover(fd: BorrowedFd<'_>) -> io::Result<Ipv6PathMtuDiscovery> {
		getsockopt(fd, c::IPPROTO_IPV6, IPV6_MTU_DISCOVER)
		}

		#[inline]
		pub(crate) fn set_ip_multicast_if_with_ifindex(
		@@ -855,2 +887,31 @@ fd: BorrowedFd<'_>,

		#[cfg(all(target_os = "linux", feature = "time"))]
		#[inline]
		pub(crate) fn set_txtime(
		fd: BorrowedFd<'_>,
		clockid: ClockId,
		flags: TxTimeFlags,
		) -> io::Result<()> {
		setsockopt(
		fd,
		c::SOL_SOCKET,
		c::SO_TXTIME,
		c::sock_txtime {
		clockid: clockid as _,
		flags: flags.bits(),
		},
		)
		}

		#[cfg(all(target_os = "linux", feature = "time"))]
		#[inline]
		pub(crate) fn get_txtime(fd: BorrowedFd<'_>) -> io::Result<(ClockId, TxTimeFlags)> {
		let txtime: c::sock_txtime = getsockopt(fd, c::SOL_SOCKET, c::SO_TXTIME)?;

		Ok((
		txtime.clockid.try_into().map_err(\|_\| io::Errno::RANGE)?,
		TxTimeFlags::from_bits(txtime.flags).ok_or(io::Errno::RANGE)?,
		))
		}

		#[cfg(target_os = "linux")]
		@@ -857,0 +918,0 @@ #[inline]

+3

-3

src/backend/linux_raw/param/auxv.rs

		@@ -23,10 +23,10 @@ //! Linux auxv support.
		use core::sync::atomic::{AtomicPtr, AtomicUsize};
		use linux_raw_sys::elf::*;
		use linux_raw_sys::general::{
		use linux_raw_sys::auxvec::{
		AT_CLKTCK, AT_EXECFN, AT_HWCAP, AT_HWCAP2, AT_MINSIGSTKSZ, AT_NULL, AT_PAGESZ, AT_SYSINFO_EHDR,
		};
		#[cfg(feature = "runtime")]
		use linux_raw_sys::general::{
		use linux_raw_sys::auxvec::{
		AT_EGID, AT_ENTRY, AT_EUID, AT_GID, AT_PHDR, AT_PHENT, AT_PHNUM, AT_RANDOM, AT_SECURE, AT_UID,
		};
		use linux_raw_sys::elf::*;
		#[cfg(feature = "alloc")]
		@@ -33,0 +33,0 @@ use {alloc::borrow::Cow, alloc::vec};

+3

-3

src/backend/linux_raw/param/init.rs

		@@ -16,8 +16,8 @@ //! Linux auxv `init` function, for "use-explicitly-provided-auxv" mode.
		use core::sync::atomic::{AtomicPtr, AtomicUsize, Ordering};
		use linux_raw_sys::elf::*;
		use linux_raw_sys::general::{
		use linux_raw_sys::auxvec::{
		AT_CLKTCK, AT_EXECFN, AT_HWCAP, AT_HWCAP2, AT_MINSIGSTKSZ, AT_NULL, AT_PAGESZ, AT_SYSINFO_EHDR,
		};
		#[cfg(feature = "runtime")]
		use linux_raw_sys::general::{AT_ENTRY, AT_PHDR, AT_PHENT, AT_PHNUM, AT_RANDOM, AT_SECURE};
		use linux_raw_sys::auxvec::{AT_ENTRY, AT_PHDR, AT_PHENT, AT_PHNUM, AT_RANDOM, AT_SECURE};
		use linux_raw_sys::elf::*;

		@@ -24,0 +24,0 @@ #[cfg(feature = "param")]

+6

-6

src/backend/linux_raw/thread/syscalls.rs

		@@ -408,5 +408,5 @@ //! linux_raw syscalls supporting `rustix::thread`.
		pub(crate) fn setresuid_thread(
		ruid: crate::ugid::Uid,
		euid: crate::ugid::Uid,
		suid: crate::ugid::Uid,
		ruid: Option<crate::ugid::Uid>,
		euid: Option<crate::ugid::Uid>,
		suid: Option<crate::ugid::Uid>,
		) -> io::Result<()> {
		@@ -430,5 +430,5 @@ #[cfg(any(target_arch = "x86", target_arch = "arm", target_arch = "sparc"))]
		pub(crate) fn setresgid_thread(
		rgid: crate::ugid::Gid,
		egid: crate::ugid::Gid,
		sgid: crate::ugid::Gid,
		rgid: Option<crate::ugid::Gid>,
		egid: Option<crate::ugid::Gid>,
		sgid: Option<crate::ugid::Gid>,
		) -> io::Result<()> {
		@@ -435,0 +435,0 @@ #[cfg(any(target_arch = "x86", target_arch = "arm", target_arch = "sparc"))]

+9

-0

src/buffer.rs

		@@ -97,2 +97,11 @@ //! Utilities for functions that return data via buffers.
		/// that. See `error_retry_closure_uninit` in examples/buffer_errors.rs.
		#[cfg_attr(
		rustc_diagnostics,
		diagnostic::on_unimplemented(
		message = "rustix does not accept `{Self}` buffers",
		label = "Unsupported buffer type",
		note = "only (potentially uninitialized) byte arrays, slices, and Vecs are supported",
		note = "please read the docs: https://docs.rs/rustix/latest/rustix/buffer/trait.Buffer.html"
		)
		)]
		pub trait Buffer<T>: private::Sealed<T> {}
		@@ -99,0 +108,0 @@

+62

-1

src/clockid.rs

		use crate::backend::c;
		use crate::fd::BorrowedFd;
		use crate::io;

		@@ -100,2 +101,47 @@ /// `CLOCK_*` constants for use with [`clock_gettime`].

		#[cfg(not(any(apple, target_os = "wasi")))]
		impl TryFrom<c::clockid_t> for ClockId {
		type Error = io::Errno;

		fn try_from(value: c::clockid_t) -> Result<Self, Self::Error> {
		match value {
		c::CLOCK_REALTIME => Ok(ClockId::Realtime),
		c::CLOCK_MONOTONIC => Ok(ClockId::Monotonic),
		#[cfg(any(freebsdlike, target_os = "openbsd"))]
		c::CLOCK_UPTIME => Ok(ClockId::Uptime),
		#[cfg(not(any(
		solarish,
		target_os = "horizon",
		target_os = "netbsd",
		target_os = "redox",
		target_os = "vita"
		)))]
		c::CLOCK_PROCESS_CPUTIME_ID => Ok(ClockId::ProcessCPUTime),
		#[cfg(not(any(
		solarish,
		target_os = "horizon",
		target_os = "netbsd",
		target_os = "redox",
		target_os = "vita"
		)))]
		c::CLOCK_THREAD_CPUTIME_ID => Ok(ClockId::ThreadCPUTime),
		#[cfg(any(linux_kernel, target_os = "freebsd"))]
		c::CLOCK_REALTIME_COARSE => Ok(ClockId::RealtimeCoarse),
		#[cfg(any(linux_kernel, target_os = "freebsd"))]
		c::CLOCK_MONOTONIC_COARSE => Ok(ClockId::MonotonicCoarse),
		#[cfg(linux_kernel)]
		c::CLOCK_MONOTONIC_RAW => Ok(ClockId::MonotonicRaw),
		#[cfg(linux_kernel)]
		c::CLOCK_REALTIME_ALARM => Ok(ClockId::RealtimeAlarm),
		#[cfg(all(linux_kernel, feature = "linux_4_11"))]
		c::CLOCK_TAI => Ok(ClockId::Tai),
		#[cfg(any(linux_kernel, target_os = "fuchsia", target_os = "openbsd"))]
		c::CLOCK_BOOTTIME => Ok(ClockId::Boottime),
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		c::CLOCK_BOOTTIME_ALARM => Ok(ClockId::BoottimeAlarm),
		_ => Err(io::Errno::RANGE),
		}
		}
		}

		/// `CLOCK_*` constants for use with [`clock_gettime`].
		@@ -131,2 +177,17 @@ ///

		#[cfg(apple)]
		impl TryFrom<c::clockid_t> for ClockId {
		type Error = io::Errno;

		fn try_from(value: c::clockid_t) -> Result<Self, Self::Error> {
		match value {
		c::CLOCK_REALTIME => Ok(ClockId::Realtime),
		c::CLOCK_MONOTONIC => Ok(ClockId::Monotonic),
		c::CLOCK_PROCESS_CPUTIME_ID => Ok(ClockId::ProcessCPUTime),
		c::CLOCK_THREAD_CPUTIME_ID => Ok(ClockId::ThreadCPUTime),
		_ => Err(io::Errno::RANGE),
		}
		}
		}

		/// `CLOCK_*` constants for use with [`clock_gettime_dynamic`].
		@@ -150,3 +211,3 @@ ///
		/// `CLOCK_REALTIME_ALARM`
		#[cfg(linux_kernel)]
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[doc(alias = "CLOCK_REALTIME_ALARM")]
		@@ -153,0 +214,0 @@ RealtimeAlarm,

+2

-2

src/fs/abs.rs

		@@ -18,3 +18,3 @@ //! POSIX-style filesystem functions which operate on bare paths.
		use crate::fs::StatFs;
		#[cfg(not(any(target_os = "haiku", target_os = "redox", target_os = "wasi")))]
		#[cfg(not(any(target_os = "haiku", target_os = "wasi")))]
		use crate::fs::StatVfs;
		@@ -287,3 +287,3 @@ use crate::fs::{Mode, OFlags, Stat};
		/// [Linux]: https://man7.org/linux/man-pages/man2/statvfs.2.html
		#[cfg(not(any(target_os = "haiku", target_os = "redox", target_os = "wasi")))]
		#[cfg(not(any(target_os = "haiku", target_os = "wasi")))]
		#[inline]
		@@ -290,0 +290,0 @@ pub fn statvfs<P: path::Arg>(path: P) -> io::Result<StatVfs> {

+18

-0

src/fs/at.rs

		@@ -472,2 +472,20 @@ //! POSIX-style `*at` functions.

		/// `mkfifoat(dirfd, path, mode)`—Make a FIFO special file.
		///
		/// # References
		/// - [POSIX]
		///
		/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/mkfifoat.html
		#[cfg(not(any(
		apple,
		target_os = "espidf",
		target_os = "horizon",
		target_os = "vita",
		target_os = "wasi"
		)))]
		#[inline]
		pub fn mkfifoat<P: path::Arg, Fd: AsFd>(dirfd: Fd, path: P, mode: Mode) -> io::Result<()> {
		mknodat(dirfd, path, FileType::Fifo, mode, 0)
		}

		/// `fchownat(dirfd, path, owner, group, flags)`—Sets file or directory
		@@ -474,0 +492,0 @@ /// ownership.

+8

-4

src/fs/constants.rs

		@@ -59,3 +59,3 @@ //! Filesystem API constants, translated into `bitflags` constants.
		fn test_layouts() {
		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		assert_eq_size!(FsWord, linux_raw_sys::general::__fsword_t);
		@@ -65,3 +65,3 @@
		// `u16`.
		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		#[cfg(not(any(
		@@ -75,3 +75,3 @@ target_arch = "x86",

		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		#[cfg(any(
		@@ -353,4 +353,8 @@ target_arch = "x86",
		#[cfg(linux_raw)]
		check_renamed_struct_field!(Statx, statx, __spare1);
		check_renamed_struct_field!(Statx, statx, stx_dio_read_offset_align);
		#[cfg(linux_raw)]
		check_renamed_struct_field!(Statx, statx, stx_atomic_write_unit_max_opt);
		#[cfg(linux_raw)]
		check_renamed_struct_field!(Statx, statx, __spare2);
		#[cfg(linux_raw)]
		check_renamed_struct_field!(Statx, statx, __spare3);
		@@ -357,0 +361,0 @@ }

+2

-2

src/fs/fd.rs

		@@ -43,3 +43,3 @@ //! Functions which operate on file descriptors.
		use backend::fs::types::StatFs;
		#[cfg(not(any(target_os = "haiku", target_os = "redox", target_os = "wasi")))]
		#[cfg(not(target_os = "wasi"))]
		use backend::fs::types::StatVfs;
		@@ -200,3 +200,3 @@
		/// [Linux]: https://man7.org/linux/man-pages/man2/fstatvfs.2.html
		#[cfg(not(any(target_os = "haiku", target_os = "redox", target_os = "wasi")))]
		#[cfg(not(target_os = "wasi"))]
		#[inline]
		@@ -203,0 +203,0 @@ pub fn fstatvfs<Fd: AsFd>(fd: Fd) -> io::Result<StatVfs> {

+4

-4

src/fs/ioctl.rs

		@@ -61,3 +61,3 @@ //! Filesystem-oriented `ioctl` functions.
		/// `ioctl(fd, EXT4_IOC_RESIZE_FS, blocks)`—Resize ext4 filesystem on fd.
		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		#[inline]
		@@ -98,3 +98,3 @@ #[doc(alias = "EXT4_IOC_RESIZE_FS")]

		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		bitflags! {
		@@ -141,3 +141,3 @@ /// `FS_*` constants for use with [`ioctl_getflags`].
		/// [inode flags]: https://man7.org/linux/man-pages/man2/ioctl_iflags.2.html
		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		#[inline]
		@@ -159,3 +159,3 @@ #[doc(alias = "FS_IOC_GETFLAGS")]
		/// [inode flags]: https://man7.org/linux/man-pages/man2/ioctl_iflags.2.html
		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		#[inline]
		@@ -162,0 +162,0 @@ #[doc(alias = "FS_IOC_SETFLAGS")]

+3

-3

src/fs/mod.rs

		@@ -33,3 +33,3 @@ //! Filesystem operations.
		mod id;
		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		pub mod inotify;
		@@ -49,3 +49,3 @@ #[cfg(linux_kernel)]
		mod memfd_create;
		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		mod openat2;
		@@ -115,3 +115,3 @@ #[cfg(linux_kernel)]
		pub use memfd_create::memfd_create;
		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		pub use openat2::openat2;
		@@ -118,0 +118,0 @@ #[cfg(linux_kernel)]

+4

-0

src/fs/raw_dir.rs

		@@ -10,2 +10,6 @@ //! `RawDir` and `RawDirEntry`.
		use core::mem::{align_of, MaybeUninit};

		#[cfg(not(linux_raw_dep))]
		use libc::dirent64 as linux_dirent64;
		#[cfg(linux_raw_dep)]
		use linux_raw_sys::general::linux_dirent64;
		@@ -12,0 +16,0 @@

+4

-2

src/fs/statx.rs

		@@ -47,4 +47,6 @@ //! Linux `statx`.
		pub stx_atomic_write_segments_max: u32,
		pub(crate) __spare1: [u32; 1],
		pub(crate) __spare3: [u64; 9],
		pub stx_dio_read_offset_align: u32,
		pub stx_atomic_write_unit_max_opt: u32,
		pub __spare2: [u32; 1usize],
		pub __spare3: [u64; 8usize],
		}
		@@ -51,0 +53,0 @@

+22

-1

src/io/ioctl.rs

		@@ -19,3 +19,6 @@ //! The Unix `ioctl` function is effectively lots of different functions hidden
		/// clearing any other flags that might be set.
		#[cfg(apple)]
		///
		/// Linux: Note that `ioctl` can not be used on `OFlags::PATH` file
		/// descriptors.
		#[cfg(any(apple, linux_kernel))]
		#[inline]
		@@ -32,2 +35,20 @@ #[doc(alias = "FIOCLEX")]

		/// `ioctl(fd, FIONCLEX, NULL)`—Remove the close-on-exec flag.
		///
		/// This is similar to `fcntl_setfd(fd, FdFlags::empty())`, except that it avoids
		/// clearing any other flags that might be set.
		///
		/// Linux: Note that `ioctl` can not be used on `OFlags::PATH` file
		/// descriptors.
		#[cfg(any(apple, linux_kernel))]
		#[inline]
		#[doc(alias = "FIONCLEX")]
		pub fn ioctl_fionclex<Fd: AsFd>(fd: Fd) -> io::Result<()> {
		// SAFETY: `FIONCLEX` is a no-argument setter opcode.
		unsafe {
		let ctl = ioctl::NoArg::<{ c::FIONCLEX }>::new();
		ioctl::ioctl(fd, ctl)
		}
		}

		/// `ioctl(fd, FIONBIO, &value)`—Enables or disables non-blocking mode.
		@@ -34,0 +55,0 @@ ///

+3

-3

src/io/read_write.rs

		@@ -13,3 +13,3 @@ //! `read` and `write`, optionally positioned, optionally vectored.

		#[cfg(linux_kernel)]
		#[cfg(all(linux_kernel, not(target_os = "android")))]
		pub use backend::io::types::ReadWriteFlags;
		@@ -281,3 +281,3 @@
		/// [glibc]: https://sourceware.org/glibc/manual/latest/html_node/Scatter_002dGather.html#index-preadv64v2
		#[cfg(linux_kernel)]
		#[cfg(all(linux_kernel, not(target_os = "android")))]
		#[inline]
		@@ -303,3 +303,3 @@ pub fn preadv2<Fd: AsFd>(
		/// [glibc]: https://sourceware.org/glibc/manual/latest/html_node/Scatter_002dGather.html#index-pwritev64v2
		#[cfg(linux_kernel)]
		#[cfg(all(linux_kernel, not(target_os = "android")))]
		#[inline]
		@@ -306,0 +306,0 @@ pub fn pwritev2<Fd: AsFd>(

+2

-2

src/ioctl/linux.rs

		@@ -91,3 +91,3 @@ //! `ioctl` opcode behavior for Linux platforms.

		#[cfg(not(any(
		#[cfg(all(linux_raw_dep, not(any(
		// These have no ioctl opcodes defined in linux_raw_sys so we can't use
		@@ -97,3 +97,3 @@ // that as a known-good value for this test.
		target_arch = "sparc64"
		)))]
		))))]
		#[test]
		@@ -100,0 +100,0 @@ fn check_known_opcodes() {

+1

-1

src/ioctl/mod.rs

		@@ -347,3 +347,3 @@ //! Unsafe `ioctl` API.

		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		#[cfg(not(any(target_arch = "sparc", target_arch = "sparc64")))]
		@@ -350,0 +350,0 @@ #[cfg(test)]

+44

-31

src/mount/fsopen.rs

		@@ -6,3 +6,3 @@ //! `fsopen` and related functions in Linux's `mount` API.
		};
		use crate::fd::{BorrowedFd, OwnedFd};
		use crate::fd::{AsFd, OwnedFd};
		use crate::{backend, io, path};
		@@ -28,8 +28,8 @@
		#[inline]
		pub fn fsmount(
		fs_fd: BorrowedFd<'_>,
		pub fn fsmount<Fd: AsFd>(
		fs_fd: Fd,
		flags: FsMountFlags,
		attr_flags: MountAttrFlags,
		) -> io::Result<OwnedFd> {
		backend::mount::syscalls::fsmount(fs_fd, flags, attr_flags)
		backend::mount::syscalls::fsmount(fs_fd.as_fd(), flags, attr_flags)
		}
		@@ -48,9 +48,11 @@
		#[inline]
		pub fn move_mount<From: path::Arg, To: path::Arg>(
		from_dfd: BorrowedFd<'_>,
		pub fn move_mount<From: path::Arg, To: path::Arg, FromFd: AsFd, ToFd: AsFd>(
		from_dfd: FromFd,
		from_pathname: From,
		to_dfd: BorrowedFd<'_>,
		to_dfd: ToFd,
		to_pathname: To,
		flags: MoveMountFlags,
		) -> io::Result<()> {
		let from_dfd = from_dfd.as_fd();
		let to_dfd = to_dfd.as_fd();
		from_pathname.into_with_c_str(\|from_pathname\| {
		@@ -76,7 +78,8 @@ to_pathname.into_with_c_str(\|to_pathname\| {
		#[inline]
		pub fn open_tree<Path: path::Arg>(
		dfd: BorrowedFd<'_>,
		pub fn open_tree<Path: path::Arg, Fd: AsFd>(
		dfd: Fd,
		filename: Path,
		flags: OpenTreeFlags,
		) -> io::Result<OwnedFd> {
		let dfd = dfd.as_fd();
		filename.into_with_c_str(\|filename\| backend::mount::syscalls::open_tree(dfd, filename, flags))
		@@ -92,7 +95,8 @@ }
		#[inline]
		pub fn fspick<Path: path::Arg>(
		dfd: BorrowedFd<'_>,
		pub fn fspick<Path: path::Arg, Fd: AsFd>(
		dfd: Fd,
		path: Path,
		flags: FsPickFlags,
		) -> io::Result<OwnedFd> {
		let dfd = dfd.as_fd();
		path.into_with_c_str(\|path\| backend::mount::syscalls::fspick(dfd, path, flags))
		@@ -109,3 +113,4 @@ }
		#[doc(alias = "fsconfig")]
		pub fn fsconfig_set_flag<Key: path::Arg>(fs_fd: BorrowedFd<'_>, key: Key) -> io::Result<()> {
		pub fn fsconfig_set_flag<Key: path::Arg, Fd: AsFd>(fs_fd: Fd, key: Key) -> io::Result<()> {
		let fs_fd = fs_fd.as_fd();
		key.into_with_c_str(\|key\| backend::mount::syscalls::fsconfig_set_flag(fs_fd, key))
		@@ -122,7 +127,8 @@ }
		#[doc(alias = "fsconfig")]
		pub fn fsconfig_set_string<Key: path::Arg, Value: path::Arg>(
		fs_fd: BorrowedFd<'_>,
		pub fn fsconfig_set_string<Key: path::Arg, Value: path::Arg, Fd: AsFd>(
		fs_fd: Fd,
		key: Key,
		value: Value,
		) -> io::Result<()> {
		let fs_fd = fs_fd.as_fd();
		key.into_with_c_str(\|key\| {
		@@ -143,7 +149,8 @@ value.into_with_c_str(\|value\| {
		#[doc(alias = "fsconfig")]
		pub fn fsconfig_set_binary<Key: path::Arg>(
		fs_fd: BorrowedFd<'_>,
		pub fn fsconfig_set_binary<Key: path::Arg, Fd: AsFd>(
		fs_fd: Fd,
		key: Key,
		value: &[u8],
		) -> io::Result<()> {
		let fs_fd = fs_fd.as_fd();
		key.into_with_c_str(\|key\| backend::mount::syscalls::fsconfig_set_binary(fs_fd, key, value))
		@@ -160,8 +167,10 @@ }
		#[doc(alias = "fsconfig")]
		pub fn fsconfig_set_path<Key: path::Arg, Path: path::Arg>(
		fs_fd: BorrowedFd<'_>,
		pub fn fsconfig_set_path<Key: path::Arg, Path: path::Arg, Fd: AsFd, AuxFd: AsFd>(
		fs_fd: Fd,
		key: Key,
		path: Path,
		fd: BorrowedFd<'_>,
		fd: AuxFd,
		) -> io::Result<()> {
		let fs_fd = fs_fd.as_fd();
		let fd = fd.as_fd();
		key.into_with_c_str(\|key\| {
		@@ -182,7 +191,9 @@ path.into_with_c_str(\|path\| {
		#[doc(alias = "fsconfig")]
		pub fn fsconfig_set_path_empty<Key: path::Arg>(
		fs_fd: BorrowedFd<'_>,
		pub fn fsconfig_set_path_empty<Key: path::Arg, Fd: AsFd, AuxFd: AsFd>(
		fs_fd: Fd,
		key: Key,
		fd: BorrowedFd<'_>,
		fd: AuxFd,
		) -> io::Result<()> {
		let fs_fd = fs_fd.as_fd();
		let fd = fd.as_fd();
		key.into_with_c_str(\|key\| backend::mount::syscalls::fsconfig_set_path_empty(fs_fd, key, fd))
		@@ -199,7 +210,9 @@ }
		#[doc(alias = "fsconfig")]
		pub fn fsconfig_set_fd<Key: path::Arg>(
		fs_fd: BorrowedFd<'_>,
		pub fn fsconfig_set_fd<Key: path::Arg, Fd: AsFd, AuxFd: AsFd>(
		fs_fd: Fd,
		key: Key,
		fd: BorrowedFd<'_>,
		fd: AuxFd,
		) -> io::Result<()> {
		let fs_fd = fs_fd.as_fd();
		let fd = fd.as_fd();
		key.into_with_c_str(\|key\| backend::mount::syscalls::fsconfig_set_fd(fs_fd, key, fd))
		@@ -216,4 +229,4 @@ }
		#[doc(alias = "fsconfig")]
		pub fn fsconfig_create(fs_fd: BorrowedFd<'_>) -> io::Result<()> {
		backend::mount::syscalls::fsconfig_create(fs_fd)
		pub fn fsconfig_create<Fd: AsFd>(fs_fd: Fd) -> io::Result<()> {
		backend::mount::syscalls::fsconfig_create(fs_fd.as_fd())
		}
		@@ -229,4 +242,4 @@
		#[doc(alias = "fsconfig")]
		pub fn fsconfig_reconfigure(fs_fd: BorrowedFd<'_>) -> io::Result<()> {
		backend::mount::syscalls::fsconfig_reconfigure(fs_fd)
		pub fn fsconfig_reconfigure<Fd: AsFd>(fs_fd: Fd) -> io::Result<()> {
		backend::mount::syscalls::fsconfig_reconfigure(fs_fd.as_fd())
		}
		@@ -244,4 +257,4 @@
		#[doc(alias = "fsconfig")]
		pub fn fsconfig_create_exclusive(fs_fd: BorrowedFd<'_>) -> io::Result<()> {
		backend::mount::syscalls::fsconfig_create_excl(fs_fd)
		pub fn fsconfig_create_exclusive<Fd: AsFd>(fs_fd: Fd) -> io::Result<()> {
		backend::mount::syscalls::fsconfig_create_excl(fs_fd.as_fd())
		}

+102

-3

src/net/netdevice.rs

		@@ -22,3 +22,3 @@ //! Low-level Linux network device access
		#[cfg(feature = "alloc")]
		use alloc::string::String;
		use alloc::{borrow::ToOwned, string::String};

		@@ -46,2 +46,4 @@ /// `ioctl(fd, SIOCGIFINDEX, ifreq)`—Returns the interface index for a given
		///
		/// See also [`index_to_name_inlined`] which does not require `alloc` feature.
		///
		/// # References
		@@ -57,8 +59,80 @@ /// - [Linux]
		pub fn index_to_name<Fd: AsFd>(fd: Fd, index: u32) -> io::Result<String> {
		crate::backend::net::netdevice::index_to_name(fd.as_fd(), index)
		let (len, ifrn_name) = crate::backend::net::netdevice::index_to_name(fd.as_fd(), index)?;

		core::str::from_utf8(&ifrn_name[..len])
		.map_err(\|_\| io::Errno::ILSEQ)
		.map(ToOwned::to_owned)
		}

		/// `ioctl(fd, SIOCGIFNAME, ifreq)`—Returns the interface name for a given
		/// index.
		///
		/// See the [module-level documentation] for information about `fd` usage.
		///
		/// # References
		/// - [Linux]
		///
		/// [module-level documentation]: self
		/// [Linux]: https://man7.org/linux/man-pages/man7/netdevice.7.html
		#[inline]
		#[doc(alias = "SIOCGIFNAME")]
		pub fn index_to_name_inlined<Fd: AsFd>(fd: Fd, index: u32) -> io::Result<InlinedName> {
		let (len, ifrn_name) = crate::backend::net::netdevice::index_to_name(fd.as_fd(), index)?;

		// Check if the name is valid UTF-8.
		core::str::from_utf8(&ifrn_name[..len])
		.map_err(\|_\| io::Errno::ILSEQ)
		.map(\|_\| InlinedName {
		len,
		name: ifrn_name,
		})
		}

		/// The inlined interface name.
		#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
		pub struct InlinedName {
		len: usize,
		name: [u8; 16],
		}

		impl InlinedName {
		/// Returns the str representation of the inlined name.
		pub fn as_str(&self) -> &str {
		self.as_ref()
		}

		/// Returns the bytes representation of the inlined name.
		pub fn as_bytes(&self) -> &[u8] {
		self.as_ref()
		}
		}

		impl AsRef<[u8]> for InlinedName {
		fn as_ref(&self) -> &[u8] {
		&self.name[..self.len]
		}
		}

		impl AsRef<str> for InlinedName {
		fn as_ref(&self) -> &str {
		// SAFETY: `InlinedName` is constructed with valid UTF-8.
		core::str::from_utf8(&self.name[..self.len]).unwrap()
		}
		}

		impl core::borrow::Borrow<str> for InlinedName {
		fn borrow(&self) -> &str {
		self.as_ref()
		}
		}

		impl core::fmt::Display for InlinedName {
		fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
		self.as_str().fmt(f)
		}
		}

		#[cfg(test)]
		mod tests {
		use crate::backend::net::netdevice::{index_to_name, name_to_index};
		use super::{index_to_name, index_to_name_inlined, name_to_index};
		use crate::fd::AsFd;
		@@ -88,2 +162,27 @@ use crate::net::{AddressFamily, SocketFlags, SocketType};
		#[test]
		fn test_index_to_name_inlined() {
		let fd = crate::net::socket_with(
		AddressFamily::INET,
		SocketType::DGRAM,
		SocketFlags::CLOEXEC,
		None,
		)
		.unwrap();

		let loopback_index = std::fs::read_to_string("/sys/class/net/lo/ifindex")
		.unwrap()
		.as_str()
		.split_at(1)
		.0
		.parse::<u32>()
		.unwrap();
		assert_eq!(
		"lo",
		index_to_name_inlined(fd.as_fd(), loopback_index)
		.unwrap()
		.as_str(),
		);
		}

		#[test]
		#[cfg(feature = "alloc")]
		@@ -90,0 +189,0 @@ fn test_index_to_name() {

+26

-0

src/net/send_recv/msg.rs

		@@ -69,2 +69,7 @@ //! [`recvmsg`], [`sendmsg`], and related functions.
		};
		(TxTime($len:expr)) => {
		$crate::net::__cmsg_space(
		$len * ::core::mem::size_of::<u64>(),
		)
		};

		@@ -98,2 +103,7 @@ // Combo Rules
		};
		(TxTime($len:expr)) => {
		$crate::net::__cmsg_aligned_space(
		$len * ::core::mem::size_of::<u64>(),
		)
		};

		@@ -143,2 +153,9 @@ // Combo Rules
		ScmCredentials(UCred),
		/// Transmission time, in nanoseconds. The value will be interpreted by
		/// whichever clock was configured on the socket with [`set_txtime`].
		///
		/// [`set_txtime`]: crate::net::sockopt::set_txtime
		#[cfg(target_os = "linux")]
		#[doc(alias = "SCM_TXTIME")]
		TxTime(u64),
		}
		@@ -156,2 +173,4 @@
		Self::ScmCredentials(_) => cmsg_space!(ScmCredentials(1)),
		#[cfg(target_os = "linux")]
		Self::TxTime(_) => cmsg_space!(TxTime(1)),
		}
		@@ -298,2 +317,9 @@ }
		}
		#[cfg(target_os = "linux")]
		SendAncillaryMessage::TxTime(tx_time) => {
		let tx_time_bytes = unsafe {
		slice::from_raw_parts(addr_of!(tx_time).cast::<u8>(), size_of_val(&tx_time))
		};
		self.push_ancillary(tx_time_bytes, c::SOL_SOCKET as _, c::SO_TXTIME as _)
		}
		}
		@@ -300,0 +326,0 @@ }

+172

-2

src/net/sockopt.rs

		@@ -146,2 +146,4 @@ //! `getsockopt` and `setsockopt` functions.

		#[cfg(all(target_os = "linux", feature = "time"))]
		use crate::clockid::ClockId;
		#[cfg(target_os = "linux")]
		@@ -176,2 +178,4 @@ use crate::net::xdp::{XdpMmapOffsets, XdpOptionsFlags, XdpStatistics, XdpUmemReg};
		use crate::net::SocketAddrV6;
		#[cfg(all(target_os = "linux", feature = "time"))]
		use crate::net::TxTimeFlags;
		use crate::net::{Ipv4Addr, Ipv6Addr, SocketType};
		@@ -203,2 +207,106 @@ use crate::{backend, io};

		/// A type for holding raw integer IPv4 Path MTU Discovery options.
		#[cfg(linux_kernel)]
		pub type RawIpv4PathMtuDiscovery = i32;

		/// IPv4 Path MTU Discovery option values (`IP_PMTUDISC_*`) for use with
		/// [`set_ip_mtu_discover`] and [`ip_mtu_discover`].
		///
		/// # References
		/// - [Linux]
		/// - [Linux INET header]
		///
		/// [Linux]: https://man7.org/linux/man-pages/man7/ip.7.html
		/// [Linux INET header]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/in.h?h=v6.14#n135
		#[cfg(linux_kernel)]
		#[derive(Debug, Clone, Copy, Eq, PartialEq, Hash)]
		#[repr(transparent)]
		pub struct Ipv4PathMtuDiscovery(RawIpv4PathMtuDiscovery);

		#[cfg(linux_kernel)]
		impl Ipv4PathMtuDiscovery {
		/// `IP_PMTUDISC_DONT`
		#[doc(alias = "IP_PMTUDISC_DONT")]
		pub const DONT: Self = Self(c::IP_PMTUDISC_DONT as _);
		/// `IP_PMTUDISC_WANT`
		#[doc(alias = "IP_PMTUDISC_WANT")]
		pub const WANT: Self = Self(c::IP_PMTUDISC_WANT as _);
		/// `IP_PMTUDISC_DO`
		#[doc(alias = "IP_PMTUDISC_DO")]
		pub const DO: Self = Self(c::IP_PMTUDISC_DO as _);
		/// `IP_PMTUDISC_PROBE`
		#[doc(alias = "IP_PMTUDISC_PROBE")]
		pub const PROBE: Self = Self(c::IP_PMTUDISC_PROBE as _);
		/// `IP_PMTUDISC_INTERFACE`
		#[doc(alias = "IP_PMTUDISC_INTERFACE")]
		pub const INTERFACE: Self = Self(c::IP_PMTUDISC_INTERFACE as _);
		/// `IP_PMTUDISC_OMIT`
		#[doc(alias = "IP_PMTUDISC_OMIT")]
		pub const OMIT: Self = Self(c::IP_PMTUDISC_OMIT as _);

		/// Constructs an option from a raw integer.
		#[inline]
		pub const fn from_raw(raw: RawIpv4PathMtuDiscovery) -> Self {
		Self(raw)
		}

		/// Returns the raw integer for this option.
		#[inline]
		pub const fn as_raw(self) -> RawIpv4PathMtuDiscovery {
		self.0
		}
		}

		/// A type for holding raw integer IPv6 Path MTU Discovery options.
		#[cfg(linux_kernel)]
		pub type RawIpv6PathMtuDiscovery = i32;

		/// IPv6 Path MTU Discovery option values (`IPV6_PMTUDISC_*`) for use with
		/// [`set_ipv6_mtu_discover`] and [`ipv6_mtu_discover`].
		///
		/// # References
		/// - [Linux]
		/// - [Linux INET6 header]
		///
		/// [Linux]: https://man7.org/linux/man-pages/man7/ipv6.7.html
		/// [Linux INET6 header]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/in6.h?h=v6.14#n185
		#[cfg(linux_kernel)]
		#[derive(Debug, Clone, Copy, Eq, PartialEq, Hash)]
		#[repr(transparent)]
		pub struct Ipv6PathMtuDiscovery(RawIpv6PathMtuDiscovery);

		#[cfg(linux_kernel)]
		impl Ipv6PathMtuDiscovery {
		/// `IPV6_PMTUDISC_DONT`
		#[doc(alias = "IPV6_PMTUDISC_DONT")]
		pub const DONT: Self = Self(c::IPV6_PMTUDISC_DONT as _);
		/// `IPV6_PMTUDISC_WANT`
		#[doc(alias = "IPV6_PMTUDISC_WANT")]
		pub const WANT: Self = Self(c::IPV6_PMTUDISC_WANT as _);
		/// `IPV6_PMTUDISC_DO`
		#[doc(alias = "IPV6_PMTUDISC_DO")]
		pub const DO: Self = Self(c::IPV6_PMTUDISC_DO as _);
		/// `IPV6_PMTUDISC_PROBE`
		#[doc(alias = "IPV6_PMTUDISC_PROBE")]
		pub const PROBE: Self = Self(c::IPV6_PMTUDISC_PROBE as _);
		/// `IPV6_PMTUDISC_INTERFACE`
		#[doc(alias = "IPV6_PMTUDISC_INTERFACE")]
		pub const INTERFACE: Self = Self(c::IPV6_PMTUDISC_INTERFACE as _);
		/// `IPV6_PMTUDISC_OMIT`
		#[doc(alias = "IPV6_PMTUDISC_OMIT")]
		pub const OMIT: Self = Self(c::IPV6_PMTUDISC_OMIT as _);

		/// Constructs an option from a raw integer.
		#[inline]
		pub const fn from_raw(raw: RawIpv6PathMtuDiscovery) -> Self {
		Self(raw)
		}

		/// Returns the raw integer for this option.
		#[inline]
		pub const fn as_raw(self) -> RawIpv6PathMtuDiscovery {
		self.0
		}
		}

		/// `getsockopt(fd, SOL_SOCKET, SO_TYPE)`—Returns the type of a socket.
		@@ -692,2 +800,50 @@ ///

		/// `setsockopt(fd, IPPROTO_IP, IP_MTU_DISCOVER, value)`
		///
		/// See the [module-level documentation] for more.
		///
		/// [module-level documentation]: self#references-for-get_ip_-and-set_ip_-functions
		#[cfg(linux_kernel)]
		#[inline]
		#[doc(alias = "IP_MTU_DISCOVER")]
		pub fn set_ip_mtu_discover<Fd: AsFd>(fd: Fd, value: Ipv4PathMtuDiscovery) -> io::Result<()> {
		backend::net::sockopt::set_ip_mtu_discover(fd.as_fd(), value)
		}

		/// `getsockopt(fd, IPPROTO_IP, IP_MTU_DISCOVER)`
		///
		/// See the [module-level documentation] for more.
		///
		/// [module-level documentation]: self#references-for-get_ip_-and-set_ip_-functions
		#[cfg(linux_kernel)]
		#[inline]
		#[doc(alias = "IP_MTU_DISCOVER")]
		pub fn ip_mtu_discover<Fd: AsFd>(fd: Fd) -> io::Result<Ipv4PathMtuDiscovery> {
		backend::net::sockopt::ip_mtu_discover(fd.as_fd())
		}

		/// `setsockopt(fd, IPPROTO_IPV6, IPV6_MTU_DISCOVER, value)`
		///
		/// See the [module-level documentation] for more.
		///
		/// [module-level documentation]: self#references-for-get_ipv6_-and-set_ipv6_-functions
		#[cfg(linux_kernel)]
		#[inline]
		#[doc(alias = "IPV6_MTU_DISCOVER")]
		pub fn set_ipv6_mtu_discover<Fd: AsFd>(fd: Fd, value: Ipv6PathMtuDiscovery) -> io::Result<()> {
		backend::net::sockopt::set_ipv6_mtu_discover(fd.as_fd(), value)
		}

		/// `getsockopt(fd, IPPROTO_IPV6, IPV6_MTU_DISCOVER)`
		///
		/// See the [module-level documentation] for more.
		///
		/// [module-level documentation]: self#references-for-get_ipv6_-and-set_ipv6_-functions
		#[cfg(linux_kernel)]
		#[inline]
		#[doc(alias = "IPV6_MTU_DISCOVER")]
		pub fn ipv6_mtu_discover<Fd: AsFd>(fd: Fd) -> io::Result<Ipv6PathMtuDiscovery> {
		backend::net::sockopt::ipv6_mtu_discover(fd.as_fd())
		}

		/// `setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF, value)`
		@@ -1543,2 +1699,16 @@ ///

		/// `getsockopt(fd, SOL_SOCKET, SO_TXTIME)` — Get transmission timing configuration.
		#[cfg(all(target_os = "linux", feature = "time"))]
		#[doc(alias = "SO_TXTIME")]
		pub fn get_txtime<Fd: AsFd>(fd: Fd) -> io::Result<(ClockId, TxTimeFlags)> {
		backend::net::sockopt::get_txtime(fd.as_fd())
		}

		/// `setsockopt(fd, SOL_SOCKET, SO_TXTIME)` — Configure transmission timing.
		#[cfg(all(target_os = "linux", feature = "time"))]
		#[doc(alias = "SO_TXTIME")]
		pub fn set_txtime<Fd: AsFd>(fd: Fd, clockid: ClockId, flags: TxTimeFlags) -> io::Result<()> {
		backend::net::sockopt::set_txtime(fd.as_fd(), clockid, flags)
		}

		/// `setsockopt(fd, SOL_XDP, XDP_UMEM_REG, value)`
		@@ -1612,3 +1782,3 @@ ///
		/// [Linux]: https://www.kernel.org/doc/html/next/networking/af_xdp.html
		#[cfg(target_os = "linux")]
		#[cfg(linux_raw_dep)]
		#[doc(alias = "XDP_MMAP_OFFSETS")]
		@@ -1625,3 +1795,3 @@ pub fn xdp_mmap_offsets<Fd: AsFd>(fd: Fd) -> io::Result<XdpMmapOffsets> {
		/// [Linux]: https://www.kernel.org/doc/html/next/networking/af_xdp.html#xdp-statistics-getsockopt
		#[cfg(target_os = "linux")]
		#[cfg(linux_raw_dep)]
		#[doc(alias = "XDP_STATISTICS")]
		@@ -1628,0 +1798,0 @@ pub fn xdp_statistics<Fd: AsFd>(fd: Fd) -> io::Result<XdpStatistics> {

+48

-1

src/pid.rs

		@@ -5,3 +5,3 @@ //! The `Pid` type.

		use core::num::NonZeroI32;
		use core::{fmt, num::NonZeroI32};

		@@ -82,2 +82,10 @@ /// A process identifier as a raw integer.

		/// Converts a `Pid` into a `RawPid`.
		///
		/// This is the same as `self.as_raw_nonzero().get()`.
		#[inline]
		pub const fn as_raw_pid(self) -> RawPid {
		self.0.get()
		}

		/// Converts an `Option<Pid>` into a `RawPid`.
		@@ -99,2 +107,40 @@ #[inline]

		impl fmt::Display for Pid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::Binary for Pid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::Octal for Pid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::LowerHex for Pid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::UpperHex for Pid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		#[cfg(lower_upper_exp_for_non_zero)]
		impl fmt::LowerExp for Pid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		#[cfg(lower_upper_exp_for_non_zero)]
		impl fmt::UpperExp for Pid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}

		#[cfg(test)]
		@@ -130,2 +176,3 @@ mod tests {
		);
		assert_eq!(Pid::from_raw(77).unwrap().as_raw_pid(), 77);
		assert_eq!(Pid::as_raw(Pid::from_raw(77)), 77);
		@@ -132,0 +179,0 @@ }

+14

-4

src/thread/id.rs

		@@ -108,4 +108,9 @@ //! CPU and thread identifiers.
		#[inline]
		pub fn set_thread_res_uid(ruid: Uid, euid: Uid, suid: Uid) -> io::Result<()> {
		backend::thread::syscalls::setresuid_thread(ruid, euid, suid)
		pub fn set_thread_res_uid<R, E, S>(ruid: R, euid: E, suid: S) -> io::Result<()>
		where
		R: Into<Option<Uid>>,
		E: Into<Option<Uid>>,
		S: Into<Option<Uid>>,
		{
		backend::thread::syscalls::setresuid_thread(ruid.into(), euid.into(), suid.into())
		}
		@@ -158,4 +163,9 @@
		#[inline]
		pub fn set_thread_res_gid(rgid: Gid, egid: Gid, sgid: Gid) -> io::Result<()> {
		backend::thread::syscalls::setresgid_thread(rgid, egid, sgid)
		pub fn set_thread_res_gid<R, E, S>(rgid: R, egid: E, sgid: S) -> io::Result<()>
		where
		R: Into<Option<Gid>>,
		E: Into<Option<Gid>>,
		S: Into<Option<Gid>>,
		{
		backend::thread::syscalls::setresgid_thread(rgid.into(), egid.into(), sgid.into())
		}
		@@ -162,0 +172,0 @@

+11

-7

src/thread/libcap.rs

		@@ -11,9 +11,13 @@ use bitflags::bitflags;
		/// `__user_cap_data_struct.effective`
		pub effective: CapabilityFlags,
		pub effective: CapabilitySet,
		/// `__user_cap_data_struct.permitted`
		pub permitted: CapabilityFlags,
		pub permitted: CapabilitySet,
		/// `__user_cap_data_struct.inheritable`
		pub inheritable: CapabilityFlags,
		pub inheritable: CapabilitySet,
		}

		/// Previous name of `CapabilitySet`.
		#[deprecated(since = "1.1.0", note = "Renamed to CapabilitySet")]
		pub type CapabilityFlags = CapabilitySet;

		bitflags! {
		@@ -23,3 +27,3 @@ /// `CAP_*` constants.
		#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
		pub struct CapabilityFlags: u64 {
		pub struct CapabilitySet: u64 {
		/// `CAP_CHOWN`
		@@ -161,5 +165,5 @@ const CHOWN = 1 << linux_raw_sys::general::CAP_CHOWN;
		Ok(CapabilitySets {
		effective: CapabilityFlags::from_bits_retain(effective),
		permitted: CapabilityFlags::from_bits_retain(permitted),
		inheritable: CapabilityFlags::from_bits_retain(inheritable),
		effective: CapabilitySet::from_bits_retain(effective),
		permitted: CapabilitySet::from_bits_retain(permitted),
		inheritable: CapabilitySet::from_bits_retain(inheritable),
		})
		@@ -166,0 +170,0 @@ }

+3

-1

src/thread/mod.rs

		@@ -26,3 +26,5 @@ //! Thread-associated operations.
		#[cfg(linux_kernel)]
		pub use libcap::{capabilities, set_capabilities, CapabilityFlags, CapabilitySets};
		// #[expect(deprecated, reason = "CapabilityFlags is deprecated")]
		#[allow(deprecated)]
		pub use libcap::{capabilities, set_capabilities, CapabilityFlags, CapabilitySet, CapabilitySets};
		#[cfg(linux_kernel)]
		@@ -29,0 +31,0 @@ pub use membarrier::*;

+125

-10

src/thread/prctl.rs

		@@ -24,2 +24,3 @@ //! Linux `prctl` wrappers.
		use crate::io;
		use crate::io::Errno;
		use crate::pid::Pid;
		@@ -31,2 +32,4 @@ use crate::prctl::{

		use super::CapabilitySet;

		//
		@@ -183,2 +186,3 @@ // PR_GET_KEEPCAPS/PR_SET_KEEPCAPS
		/// Linux per-thread capability.
		#[deprecated(since = "1.1.0", note = "Use CapabilitySet with a single bit instead")]
		#[derive(Copy, Clone, Debug, Eq, PartialEq)]
		@@ -389,2 +393,71 @@ #[repr(u32)]

		mod private {
		pub trait Sealed {}
		pub struct Token;

		#[allow(deprecated)]
		impl Sealed for crate::thread::Capability {}
		impl Sealed for crate::thread::CapabilitySet {}
		}
		/// Compatibility trait to keep existing code that uses the deprecated [`Capability`] type working.
		///
		/// This trait and its methods are sealed. It must not be used downstream.
		pub trait CompatCapability: private::Sealed + Copy {
		#[doc(hidden)]
		fn as_capability_set(self, _: private::Token) -> CapabilitySet;
		}
		#[allow(deprecated)]
		impl CompatCapability for Capability {
		fn as_capability_set(self, _: private::Token) -> CapabilitySet {
		match self {
		Self::ChangeOwnership => CapabilitySet::CHOWN,
		Self::DACOverride => CapabilitySet::DAC_OVERRIDE,
		Self::DACReadSearch => CapabilitySet::DAC_READ_SEARCH,
		Self::FileOwner => CapabilitySet::FOWNER,
		Self::FileSetID => CapabilitySet::FSETID,
		Self::Kill => CapabilitySet::KILL,
		Self::SetGroupID => CapabilitySet::SETGID,
		Self::SetUserID => CapabilitySet::SETUID,
		Self::SetPermittedCapabilities => CapabilitySet::SETPCAP,
		Self::LinuxImmutable => CapabilitySet::LINUX_IMMUTABLE,
		Self::NetBindService => CapabilitySet::NET_BIND_SERVICE,
		Self::NetBroadcast => CapabilitySet::NET_BROADCAST,
		Self::NetAdmin => CapabilitySet::NET_ADMIN,
		Self::NetRaw => CapabilitySet::NET_RAW,
		Self::IPCLock => CapabilitySet::IPC_LOCK,
		Self::IPCOwner => CapabilitySet::IPC_OWNER,
		Self::SystemModule => CapabilitySet::SYS_MODULE,
		Self::SystemRawIO => CapabilitySet::SYS_RAWIO,
		Self::SystemChangeRoot => CapabilitySet::SYS_CHROOT,
		Self::SystemProcessTrace => CapabilitySet::SYS_PTRACE,
		Self::SystemProcessAccounting => CapabilitySet::SYS_PACCT,
		Self::SystemAdmin => CapabilitySet::SYS_ADMIN,
		Self::SystemBoot => CapabilitySet::SYS_BOOT,
		Self::SystemNice => CapabilitySet::SYS_NICE,
		Self::SystemResource => CapabilitySet::SYS_RESOURCE,
		Self::SystemTime => CapabilitySet::SYS_TIME,
		Self::SystemTTYConfig => CapabilitySet::SYS_TTY_CONFIG,
		Self::MakeNode => CapabilitySet::MKNOD,
		Self::Lease => CapabilitySet::LEASE,
		Self::AuditWrite => CapabilitySet::AUDIT_WRITE,
		Self::AuditControl => CapabilitySet::AUDIT_CONTROL,
		Self::SetFileCapabilities => CapabilitySet::SETFCAP,
		Self::MACOverride => CapabilitySet::MAC_OVERRIDE,
		Self::MACAdmin => CapabilitySet::MAC_ADMIN,
		Self::SystemLog => CapabilitySet::SYSLOG,
		Self::WakeAlarm => CapabilitySet::WAKE_ALARM,
		Self::BlockSuspend => CapabilitySet::BLOCK_SUSPEND,
		Self::AuditRead => CapabilitySet::AUDIT_READ,
		Self::PerformanceMonitoring => CapabilitySet::PERFMON,
		Self::BerkeleyPacketFilters => CapabilitySet::BPF,
		Self::CheckpointRestore => CapabilitySet::CHECKPOINT_RESTORE,
		}
		}
		}
		impl CompatCapability for CapabilitySet {
		fn as_capability_set(self, _: private::Token) -> CapabilitySet {
		self
		}
		}

		/// Check if the specified capability is in the calling thread's capability
		@@ -398,4 +471,11 @@ /// bounding set.
		#[inline]
		pub fn capability_is_in_bounding_set(capability: Capability) -> io::Result<bool> {
		unsafe { prctl_2args(PR_CAPBSET_READ, capability as usize as *mut _) }.map(\|r\| r != 0)
		pub fn capability_is_in_bounding_set(capability: impl CompatCapability) -> io::Result<bool> {
		let capset = capability.as_capability_set(private::Token).bits();
		if capset.count_ones() != 1 {
		return Err(Errno::INVAL);
		}
		let cap = capset.trailing_zeros();

		// as *mut _ should be ptr::without_provenance_mut but our MSRV does not allow it.
		unsafe { prctl_2args(PR_CAPBSET_READ, cap as usize as *mut _) }.map(\|r\| r != 0)
		}
		@@ -414,4 +494,11 @@
		#[inline]
		pub fn remove_capability_from_bounding_set(capability: Capability) -> io::Result<()> {
		unsafe { prctl_2args(PR_CAPBSET_DROP, capability as usize as *mut _) }.map(\|_r\| ())
		pub fn remove_capability_from_bounding_set(capability: impl CompatCapability) -> io::Result<()> {
		let capset = capability.as_capability_set(private::Token).bits();
		if capset.count_ones() != 1 {
		return Err(Errno::INVAL);
		}
		let cap = capset.trailing_zeros();

		// as *mut _ should be ptr::without_provenance_mut but our MSRV does not allow it.
		unsafe { prctl_2args(PR_CAPBSET_DROP, cap as usize as *mut _) }.map(\|_r\| ())
		}
		@@ -617,5 +704,18 @@
		#[inline]
		pub fn capability_is_in_ambient_set(capability: Capability) -> io::Result<bool> {
		let cap = capability as usize as *mut _;
		unsafe { prctl_3args(PR_CAP_AMBIENT, PR_CAP_AMBIENT_IS_SET as *mut _, cap) }.map(\|r\| r != 0)
		pub fn capability_is_in_ambient_set(capability: impl CompatCapability) -> io::Result<bool> {
		let capset = capability.as_capability_set(private::Token).bits();
		if capset.count_ones() != 1 {
		return Err(Errno::INVAL);
		}
		let cap = capset.trailing_zeros();

		unsafe {
		prctl_3args(
		PR_CAP_AMBIENT,
		PR_CAP_AMBIENT_IS_SET as *mut _,
		// as *mut _ should be ptr::without_provenance_mut but our MSRV does not allow it.
		cap as usize as *mut _,
		)
		}
		.map(\|r\| r != 0)
		}
		@@ -646,3 +746,6 @@
		#[inline]
		pub fn configure_capability_in_ambient_set(capability: Capability, enable: bool) -> io::Result<()> {
		pub fn configure_capability_in_ambient_set(
		capability: impl CompatCapability,
		enable: bool,
		) -> io::Result<()> {
		let sub_operation = if enable {
		@@ -653,5 +756,17 @@ PR_CAP_AMBIENT_RAISE
		};
		let cap = capability as usize as *mut _;
		let capset = capability.as_capability_set(private::Token).bits();
		if capset.count_ones() != 1 {
		return Err(Errno::INVAL);
		}
		let cap = capset.trailing_zeros();

		unsafe { prctl_3args(PR_CAP_AMBIENT, sub_operation as *mut _, cap) }.map(\|_r\| ())
		unsafe {
		prctl_3args(
		PR_CAP_AMBIENT,
		sub_operation as *mut _,
		// as *mut _ should be ptr::without_provenance_mut but our MSRV does not allow it.
		cap as usize as *mut _,
		)
		}
		.map(\|_r\| ())
		}
		@@ -658,0 +773,0 @@

+14

-2

src/time/mod.rs

		//! Time-related operations.

		mod clock;
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		mod timerfd;
		@@ -10,3 +16,9 @@
		pub use clock::*;
		#[cfg(any(linux_kernel, target_os = "fuchsia"))]
		#[cfg(any(
		linux_kernel,
		target_os = "freebsd",
		target_os = "fuchsia",
		target_os = "illumos",
		target_os = "netbsd"
		))]
		pub use timerfd::*;

+18

-0

src/time/timerfd.rs

		@@ -28,4 +28,10 @@ use crate::fd::{AsFd, OwnedFd};
		/// - [Linux]
		/// - [FreeBSD]
		/// - [illumos]
		/// - [NetBSD]
		///
		/// [Linux]: https://man7.org/linux/man-pages/man2/timerfd_create.2.html
		/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=timerfd_create&sektion=2
		/// [illumos]: https://illumos.org/man/3C/timerfd_create
		/// [NetBSD]: https://man.netbsd.org/timerfd_create.2
		#[inline]
		@@ -40,4 +46,10 @@ pub fn timerfd_create(clockid: TimerfdClockId, flags: TimerfdFlags) -> io::Result<OwnedFd> {
		/// - [Linux]
		/// - [FreeBSD]
		/// - [illumos]
		/// - [NetBSD]
		///
		/// [Linux]: https://man7.org/linux/man-pages/man2/timerfd_settime.2.html
		/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=timerfd_settime&sektion=2
		/// [illumos]: https://illumos.org/man/3C/timerfd_settime
		/// [NetBSD]: https://man.netbsd.org/timerfd_settime.2
		#[inline]
		@@ -56,4 +68,10 @@ pub fn timerfd_settime<Fd: AsFd>(
		/// - [Linux]
		/// - [FreeBSD]
		/// - [illumos]
		/// - [NetBSD]
		///
		/// [Linux]: https://man7.org/linux/man-pages/man2/timerfd_gettime.2.html
		/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=timerfd_gettime&sektion=2
		/// [illumos]: https://illumos.org/man/3C/timerfd_gettime
		/// [NetBSD]: https://man.netbsd.org/timerfd_gettime.2
		#[inline]
		@@ -60,0 +78,0 @@ pub fn timerfd_gettime<Fd: AsFd>(fd: Fd) -> io::Result<Itimerspec> {

+1

-1

src/timespec.rs

		@@ -414,3 +414,3 @@ //! `Timespec` and related types, which are used by multiple public API
		// Test that `Timespec` matches Linux's `__kernel_timespec`.
		#[cfg(linux_kernel)]
		#[cfg(linux_raw_dep)]
		#[test]
		@@ -417,0 +417,0 @@ fn test_against_kernel_timespec() {

+74

-0

src/ugid.rs

		//! User and Group ID types.

		use core::fmt;

		use crate::backend::c;
		@@ -89,2 +91,74 @@ use crate::ffi;

		impl fmt::Display for Uid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::Binary for Uid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::Octal for Uid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::LowerHex for Uid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::UpperHex for Uid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::LowerExp for Uid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::UpperExp for Uid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}

		impl fmt::Display for Gid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::Binary for Gid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::Octal for Gid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::LowerHex for Gid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::UpperHex for Gid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::LowerExp for Gid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}
		impl fmt::UpperExp for Gid {
		fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
		self.0.fmt(f)
		}
		}

		// Return the raw value of the IDs. In case of `None` it returns `!0` since it
		@@ -91,0 +165,0 @@ // has the same bit pattern as `-1` indicating no change to the owner/group ID.

+4

-4

src/weak.rs

		@@ -149,4 +149,4 @@ // Implementation derived from `weak` in Rust's
		macro_rules! syscall {
		(fn $name:ident($($arg_name:ident: $t:ty),*) via $_sys_name:ident -> $ret:ty) => (
		unsafe fn $name($($arg_name: $t),*) -> $ret {
		($vis:vis fn $name:ident($($arg_name:ident: $t:ty),*) via $_sys_name:ident -> $ret:ty) => (
		$vis unsafe fn $name($($arg_name: $t),*) -> $ret {
		weak! { fn $name($($t),*) -> $ret }
		@@ -166,4 +166,4 @@
		macro_rules! syscall {
		(fn $name:ident($($arg_name:ident: $t:ty),*) via $sys_name:ident -> $ret:ty) => (
		unsafe fn $name($($arg_name:$t),*) -> $ret {
		($vis:vis fn $name:ident($($arg_name:ident: $t:ty),*) via $sys_name:ident -> $ret:ty) => (
		$vis unsafe fn $name($($arg_name:$t),*) -> $ret {
		// This looks like a hack, but `concat_idents` only accepts idents
		@@ -170,0 +170,0 @@ // (not paths).

Cargo.toml.orig

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src/backend/libc/fs/syscalls.rs

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src/net/types.rs

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