diff options
| -rw-r--r-- | Cargo.toml | 3 | ||||
| -rw-r--r-- | src/macros.rs | 13 | ||||
| -rw-r--r-- | src/sys/socket/addr.rs | 1 | ||||
| -rw-r--r-- | src/sys/socket/mod.rs | 1 |
4 files changed, 5 insertions, 13 deletions
@@ -36,6 +36,9 @@ libc = { version = "0.2.82", features = [ "extra_traits" ] } bitflags = "1.1" cfg-if = "1.0" +[target.'cfg(not(target_os = "redox"))'.dependencies] +memoffset = "0.6.3" + [target.'cfg(target_os = "dragonfly")'.build-dependencies] cc = "1" diff --git a/src/macros.rs b/src/macros.rs index feb02ea7..7d6ac8df 100644 --- a/src/macros.rs +++ b/src/macros.rs @@ -203,16 +203,3 @@ macro_rules! libc_enum { } }; } - -/// A Rust version of the familiar C `offset_of` macro. It returns the byte -/// offset of `field` within struct `ty` -#[cfg(not(target_os = "redox"))] -macro_rules! offset_of { - ($ty:ty, $field:ident) => {{ - // Safe because we don't actually read from the dereferenced pointer - #[allow(unused_unsafe)] // for when the macro is used in an unsafe block - unsafe { - &(*(ptr::null() as *const $ty)).$field as *const _ as usize - } - }} -} diff --git a/src/sys/socket/addr.rs b/src/sys/socket/addr.rs index 1f7f4ec6..71b2c973 100644 --- a/src/sys/socket/addr.rs +++ b/src/sys/socket/addr.rs @@ -1,6 +1,7 @@ use super::sa_family_t; use crate::{Error, Result, NixPath}; use crate::errno::Errno; +use memoffset::offset_of; use std::{fmt, mem, net, ptr, slice}; use std::ffi::OsStr; use std::hash::{Hash, Hasher}; diff --git a/src/sys/socket/mod.rs b/src/sys/socket/mod.rs index 2725e57c..4301ee1f 100644 --- a/src/sys/socket/mod.rs +++ b/src/sys/socket/mod.rs @@ -5,6 +5,7 @@ use cfg_if::cfg_if; use crate::{Error, Result, errno::Errno}; use libc::{self, c_void, c_int, iovec, socklen_t, size_t, CMSG_FIRSTHDR, CMSG_NXTHDR, CMSG_DATA, CMSG_LEN}; +use memoffset::offset_of; use std::{mem, ptr, slice}; use std::os::unix::io::RawFd; use crate::sys::time::TimeVal; |