Fix the mutability requirement on Socket::send_msg

poscat0x04 · poscat0x04 · commit e23e390decf2 · 2025-10-01T16:28:58.000+08:00
diff --git a/library/std/src/sys/net/connection/socket/unix.rs b/library/std/src/sys/net/connection/socket/unix.rs
@@ -385,7 +385,7 @@ impl Socket {
     }
 
     #[cfg(any(target_os = "android", target_os = "linux", target_os = "cygwin"))]
-    pub fn send_msg(&self, msg: &mut libc::msghdr) -> io::Result<usize> {
+    pub fn send_msg(&self, msg: &libc::msghdr) -> io::Result<usize> {
         let n = cvt(unsafe { libc::sendmsg(self.as_raw_fd(), msg, 0) })?;
         Ok(n as usize)
     }

Original file line number	Diff line number	Diff line change
`@@ -385,7 +385,7 @@ impl Socket {`
`385`	`385`	`}`
`386`	`386`
`387`	`387`	`#[cfg(any(target_os = "android", target_os = "linux", target_os = "cygwin"))]`
`388`		`- pub fn send_msg(&self, msg: &mut libc::msghdr) -> io::Result<usize> {`
	`388`	`+ pub fn send_msg(&self, msg: &libc::msghdr) -> io::Result<usize> {`
`389`	`389`	`let n = cvt(unsafe { libc::sendmsg(self.as_raw_fd(), msg, 0) })?;`
`390`	`390`	`Ok(n as usize)`
`391`	`391`	`}`