Fix SockaddrLike::from_raw with unaligned inputs

The major users of this function are functions like gethostname, which
will always properly align their buffers.  But out-of-crate consumers
could manually construct an unaligned buffer.  Handle that correctly.

Enable Clippy's cast_ptr_alignment lint.  It's disabled by default as it
reports many false positives, but it would've caught this problem.

Reported-by:	Miri
Fixes:		1769

1 files changed, 1 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 68939209..770258dd 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -53,6 +53,7 @@
 #![deny(missing_debug_implementations)]
 #![warn(missing_docs)]
 #![cfg_attr(docsrs, feature(doc_cfg))]
+#![deny(clippy::cast_ptr_alignment)]
 
 // Re-exported external crates
 pub use libc;