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    #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
    #![cfg_attr(not(feature = "std"), no_std)]

    #[cfg(feature = "std")]
    pub use std::os::raw as ctypes;

    #[cfg(all(not(feature = "std"), feature = "no_std"))]
    pub mod ctypes {
        // The signedness of `char` is platform-specific, however a consequence
        // of it being platform-specific is that any code which depends on the
        // signedness of `char` is already non-portable. So we can just use `u8`
        // here and no portable code will notice.
        pub type c_char = u8;

        // The following assumes that Linux is always either ILP32 or LP64,
        // and char is always 8-bit.
        //
        // In theory, `c_long` and `c_ulong` could be `isize` and `usize`
        // respectively, however in practice Linux doesn't use them in that way
        // consistently. So stick with the convention followed by `libc` and
        // others and use the fixed-width types.
        pub type c_schar = i8;
        pub type c_uchar = u8;
        pub type c_short = i16;
        pub type c_ushort = u16;
        pub type c_int = i32;
        pub type c_uint = u32;
        #[cfg(target_pointer_width = "32")]
        pub type c_long = i32;
        #[cfg(target_pointer_width = "32")]
        pub type c_ulong = u32;
        #[cfg(target_pointer_width = "64")]
        pub type c_long = i64;
        #[cfg(target_pointer_width = "64")]
        pub type c_ulong = u64;
        pub type c_longlong = i64;
        pub type c_ulonglong = u64;
        pub type c_float = f32;
        pub type c_double = f64;

        pub use core::ffi::c_void;
    }

    // Confirm that our type definitions above match the actual type definitions.
    #[cfg(test)]
    mod assertions {
        use super::ctypes;
        static_assertions::assert_eq_size!(ctypes::c_char, libc::c_char);
        static_assertions::assert_type_eq_all!(ctypes::c_schar, libc::c_schar);
        static_assertions::assert_type_eq_all!(ctypes::c_uchar, libc::c_uchar);
        static_assertions::assert_type_eq_all!(ctypes::c_short, libc::c_short);
        static_assertions::assert_type_eq_all!(ctypes::c_ushort, libc::c_ushort);
        static_assertions::assert_type_eq_all!(ctypes::c_int, libc::c_int);
        static_assertions::assert_type_eq_all!(ctypes::c_uint, libc::c_uint);
        static_assertions::assert_type_eq_all!(ctypes::c_long, libc::c_long);
        static_assertions::assert_type_eq_all!(ctypes::c_ulong, libc::c_ulong);
        static_assertions::assert_type_eq_all!(ctypes::c_longlong, libc::c_longlong);
        static_assertions::assert_type_eq_all!(ctypes::c_ulonglong, libc::c_ulonglong);
        static_assertions::assert_type_eq_all!(ctypes::c_float, libc::c_float);
        static_assertions::assert_type_eq_all!(ctypes::c_double, libc::c_double);
    }

    // We don't enable `derive_eq` in bindgen because adding `PartialEq`/`Eq` to
    // *all* structs noticeably increases compile times. But we can add a few
    // manual impls where they're especially useful.
    #[cfg(feature = "general")]
    impl PartialEq for general::__kernel_timespec {
        fn eq(&self, other: &Self) -> bool {
            ({
                let Self { tv_sec, tv_nsec } = self;
                (tv_sec, tv_nsec)
            }) == ({
                let Self { tv_sec, tv_nsec } = other;
                (tv_sec, tv_nsec)
            })
        }
    }
    #[cfg(feature = "general")]
    impl Eq for general::__kernel_timespec {}

    #[cfg(feature = "general")]
    pub mod cmsg_macros {
        use crate::ctypes::{c_long, c_uint, c_uchar};
        use crate::general::{cmsghdr, msghdr};
        use core::mem::size_of;
        use core::ptr;

        pub unsafe fn CMSG_ALIGN(len: c_uint) -> c_uint {
            let c_long_size = size_of::<c_long>() as c_uint;
            (len + c_long_size - 1) & !(c_long_size - 1)
        }

        pub unsafe fn CMSG_DATA(cmsg: *const cmsghdr) -> *mut c_uchar {
            (cmsg as *mut c_uchar).offset(size_of::<cmsghdr>() as isize)
        }

        pub unsafe fn CMSG_SPACE(len: c_uint) -> c_uint {
            size_of::<cmsghdr>() as c_uint + CMSG_ALIGN(len)
        }

        pub unsafe fn CMSG_LEN(len: c_uint) -> c_uint {
            size_of::<cmsghdr>() as c_uint + len
        }

        pub unsafe fn CMSG_FIRSTHDR(mhdr: *const msghdr) -> *mut cmsghdr {
            if (*mhdr).msg_controllen < size_of::<cmsghdr>() as _ {
                return ptr::null_mut();
            }

            (*mhdr).msg_control as *mut cmsghdr
        }

        pub unsafe fn CMSG_NXTHDR(mhdr: *const msghdr, cmsg: *const cmsghdr) -> *mut cmsghdr {
            // We convert from raw pointers to isize here, which may not be sound in a future version of Rust.
            // Once the provenance rules are set in stone, it will be a good idea to give this function a once-over.

            let cmsg_len = (*cmsg).cmsg_len;
            let next_cmsg = (cmsg as *mut u8).offset(CMSG_ALIGN(cmsg_len as _) as isize) as *mut cmsghdr;
            let max = ((*mhdr).msg_control as usize) + ((*mhdr).msg_controllen as usize);

            if cmsg_len < size_of::<cmsghdr>() as _ {
                return ptr::null_mut();
            }

            if next_cmsg.offset(1) as usize > max || next_cmsg as usize + CMSG_ALIGN(cmsg_len as _) as usize > max
            {
                return ptr::null_mut();
            }

            next_cmsg
        }
    }

    // The rest of this file is auto-generated!
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "arm")]
    #[path = "arm/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "arm")]
    #[path = "arm/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "arm")]
    #[path = "arm/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "arm")]
    #[path = "arm/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "aarch64")]
    #[path = "aarch64/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "aarch64")]
    #[path = "aarch64/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "aarch64")]
    #[path = "aarch64/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "aarch64")]
    #[path = "aarch64/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "mips")]
    #[path = "mips/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "mips")]
    #[path = "mips/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "mips")]
    #[path = "mips/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "mips")]
    #[path = "mips/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "mips64")]
    #[path = "mips64/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "mips64")]
    #[path = "mips64/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "mips64")]
    #[path = "mips64/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "mips64")]
    #[path = "mips64/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "powerpc")]
    #[path = "powerpc/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "powerpc")]
    #[path = "powerpc/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "powerpc")]
    #[path = "powerpc/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "powerpc")]
    #[path = "powerpc/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "powerpc64")]
    #[path = "powerpc64/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "powerpc64")]
    #[path = "powerpc64/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "powerpc64")]
    #[path = "powerpc64/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "powerpc64")]
    #[path = "powerpc64/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "riscv32")]
    #[path = "riscv32/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "riscv32")]
    #[path = "riscv32/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "riscv32")]
    #[path = "riscv32/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "riscv32")]
    #[path = "riscv32/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "riscv64")]
    #[path = "riscv64/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "riscv64")]
    #[path = "riscv64/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "riscv64")]
    #[path = "riscv64/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "riscv64")]
    #[path = "riscv64/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "s390x")]
    #[path = "s390x/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "s390x")]
    #[path = "s390x/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "s390x")]
    #[path = "s390x/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "s390x")]
    #[path = "s390x/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "sparc")]
    #[path = "sparc/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "sparc")]
    #[path = "sparc/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "sparc")]
    #[path = "sparc/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "sparc")]
    #[path = "sparc/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "sparc64")]
    #[path = "sparc64/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "sparc64")]
    #[path = "sparc64/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "sparc64")]
    #[path = "sparc64/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "sparc64")]
    #[path = "sparc64/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(target_arch = "x86")]
    #[path = "x86/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(target_arch = "x86")]
    #[path = "x86/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(target_arch = "x86")]
    #[path = "x86/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(target_arch = "x86")]
    #[path = "x86/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
    #[path = "x86_64/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
    #[path = "x86_64/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
    #[path = "x86_64/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
    #[path = "x86_64/netlink.rs"]
    pub mod netlink;
    #[cfg(feature = "errno")]
    #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
    #[path = "x32/errno.rs"]
    pub mod errno;
    #[cfg(feature = "general")]
    #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
    #[path = "x32/general.rs"]
    pub mod general;
    #[cfg(feature = "ioctl")]
    #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
    #[path = "x32/ioctl.rs"]
    pub mod ioctl;
    #[cfg(feature = "netlink")]
    #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
    #[path = "x32/netlink.rs"]
    pub mod netlink;