commit cbd75b484f783e4b388ef4b0fb3662fb4c43bbfa (tree)
parent d96d7353387e10a2306f05d98955ac22db6e89e7
Author: Andrew Kelley <andrew@ziglang.org>
Date: Wed, 7 Jan 2026 15:08:00 -0800
std.posix: remove recvfrom, recvmsg
see #6600
Diffstat:
| M | lib/std/posix.zig | | | 133 | ------------------------------------------------------------------------------- |
1 file changed, 0 insertions(+), 133 deletions(-)
diff --git a/lib/std/posix.zig b/lib/std/posix.zig
@@ -1608,139 +1608,6 @@ pub fn ppoll(fds: []pollfd, timeout: ?*const timespec, mask: ?*const sigset_t) P
}
}
-pub const RecvFromError = error{
- /// The socket is marked nonblocking and the requested operation would block, and
- /// there is no global event loop configured.
- WouldBlock,
-
- /// A remote host refused to allow the network connection, typically because it is not
- /// running the requested service.
- ConnectionRefused,
-
- /// Could not allocate kernel memory.
- SystemResources,
-
- ConnectionResetByPeer,
- Timeout,
-
- /// The socket has not been bound.
- SocketNotBound,
-
- /// The UDP message was too big for the buffer and part of it has been discarded
- MessageOversize,
-
- /// The network subsystem has failed.
- NetworkDown,
-
- /// The socket is not connected (connection-oriented sockets only).
- SocketUnconnected,
-
- /// The other end closed the socket unexpectedly or a read is executed on a shut down socket
- BrokenPipe,
-} || UnexpectedError;
-
-pub fn recv(sock: socket_t, buf: []u8, flags: u32) RecvFromError!usize {
- return recvfrom(sock, buf, flags, null, null);
-}
-
-/// If `sockfd` is opened in non blocking mode, the function will
-/// return error.WouldBlock when EAGAIN is received.
-pub fn recvfrom(
- sockfd: socket_t,
- buf: []u8,
- flags: u32,
- src_addr: ?*sockaddr,
- addrlen: ?*socklen_t,
-) RecvFromError!usize {
- while (true) {
- const rc = system.recvfrom(sockfd, buf.ptr, buf.len, flags, src_addr, addrlen);
- if (native_os == .windows) {
- if (rc == windows.ws2_32.SOCKET_ERROR) {
- switch (windows.ws2_32.WSAGetLastError()) {
- .NOTINITIALISED => unreachable,
- .ECONNRESET => return error.ConnectionResetByPeer,
- .EINVAL => return error.SocketNotBound,
- .EMSGSIZE => return error.MessageOversize,
- .ENETDOWN => return error.NetworkDown,
- .ENOTCONN => return error.SocketUnconnected,
- .EWOULDBLOCK => return error.WouldBlock,
- .ETIMEDOUT => return error.Timeout,
- // TODO: handle more errors
- else => |err| return windows.unexpectedWSAError(err),
- }
- } else {
- return @intCast(rc);
- }
- } else {
- switch (errno(rc)) {
- .SUCCESS => return @intCast(rc),
- .BADF => unreachable, // always a race condition
- .FAULT => unreachable,
- .INVAL => unreachable,
- .NOTCONN => return error.SocketUnconnected,
- .NOTSOCK => unreachable,
- .INTR => continue,
- .AGAIN => return error.WouldBlock,
- .NOMEM => return error.SystemResources,
- .CONNREFUSED => return error.ConnectionRefused,
- .CONNRESET => return error.ConnectionResetByPeer,
- .TIMEDOUT => return error.Timeout,
- .PIPE => return error.BrokenPipe,
- else => |err| return unexpectedErrno(err),
- }
- }
- }
-}
-
-pub const RecvMsgError = RecvFromError || error{
- /// Reception of SCM_RIGHTS fds via ancillary data in msg.control would
- /// exceed some system limit (generally this is retryable by trying to
- /// receive fewer fds or closing some existing fds)
- SystemFdQuotaExceeded,
-
- /// Reception of SCM_RIGHTS fds via ancillary data in msg.control would
- /// exceed some process limit (generally this is retryable by trying to
- /// receive fewer fds, closing some existing fds, or changing the ulimit)
- ProcessFdQuotaExceeded,
-};
-
-/// If `sockfd` is opened in non blocking mode, the function will
-/// return error.WouldBlock when EAGAIN is received.
-pub fn recvmsg(
- /// The file descriptor of the sending socket.
- sockfd: socket_t,
- /// Message header and iovecs
- msg: *msghdr,
- flags: u32,
-) RecvMsgError!usize {
- if (@TypeOf(system.recvmsg) == void)
- @compileError("recvmsg() not supported on this OS");
- while (true) {
- const rc = system.recvmsg(sockfd, msg, flags);
- switch (errno(rc)) {
- .SUCCESS => return @intCast(rc),
- .AGAIN => return error.WouldBlock,
- .BADF => unreachable, // always a race condition
- .NFILE => return error.SystemFdQuotaExceeded,
- .MFILE => return error.ProcessFdQuotaExceeded,
- .INTR => continue,
- .FAULT => unreachable, // An invalid user space address was specified for an argument.
- .INVAL => unreachable, // Invalid argument passed.
- .ISCONN => unreachable, // connection-mode socket was connected already but a recipient was specified
- .NOBUFS => return error.SystemResources,
- .NOMEM => return error.SystemResources,
- .NOTCONN => return error.SocketUnconnected,
- .NOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
- .MSGSIZE => return error.MessageOversize,
- .PIPE => return error.BrokenPipe,
- .OPNOTSUPP => unreachable, // Some bit in the flags argument is inappropriate for the socket type.
- .CONNRESET => return error.ConnectionResetByPeer,
- .NETDOWN => return error.NetworkDown,
- else => |err| return unexpectedErrno(err),
- }
- }
-}
-
pub const SetSockOptError = error{
/// The socket is already connected, and a specified option cannot be set while the socket is connected.
AlreadyConnected,
