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create SendToError (#7417)

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* add SendToError

* remove error catch

* add missing SendToError entries

* add mappings to new errors for posix

* map windows sendto() errors
This commit is contained in:
luna 2020-12-15 16:56:42 -03:00 committed by GitHub
parent 5f7352b5b5
commit 0c33624a45
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2 changed files with 45 additions and 4 deletions
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1
lib/std/fs/file.zig
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@ -698,7 +698,6 @@ pub const File = struct {
error.FastOpenAlreadyInProgress,
error.MessageTooBig,
error.FileDescriptorNotASocket,
error.AddressFamilyNotSupported,
=> return self.writeFileAllUnseekable(in_file, args),
else => |e| return e,

48
lib/std/os.zig
View File

@ -4774,9 +4774,34 @@ pub const SendError = error{
BrokenPipe,
FileDescriptorNotASocket,
AddressFamilyNotSupported,
} || UnexpectedError;
pub const SendToError = SendError || error{
/// The passed address didn't have the correct address family in its sa_family field.
AddressFamilyNotSupported,
/// Returned when socket is AF_UNIX and the given path has a symlink loop.
SymLinkLoop,
/// Returned when socket is AF_UNIX and the given path length exceeds `MAX_PATH_BYTES` bytes.
NameTooLong,
/// Returned when socket is AF_UNIX and the given path does not point to an existing file.
FileNotFound,
NotDir,
/// Network is unreachable.
NetworkUnreachable,
/// Insufficient memory was available to fulfill the request.
SystemResources,
/// The socket is not connected (connection-oriented sockets only).
SocketNotConnected,
WouldBlock,
AddressNotAvailable,
};
/// Transmit a message to another socket.
///
/// The `sendto` call may be used only when the socket is in a connected state (so that the intended
@ -4810,19 +4835,31 @@ pub fn sendto(
flags: u32,
dest_addr: ?*const sockaddr,
addrlen: socklen_t,
) SendError!usize {
) SendToError!usize {
while (true) {
const rc = system.sendto(sockfd, buf.ptr, buf.len, flags, dest_addr, addrlen);
if (builtin.os.tag == .windows) {
if (rc == windows.ws2_32.SOCKET_ERROR) {
switch (windows.ws2_32.WSAGetLastError()) {
.WSAEACCES => return error.AccessDenied,
.WSAEADDRNOTAVAIL => return error.AddressNotAvailable,
.WSAECONNRESET => return error.ConnectionResetByPeer,
.WSAEMSGSIZE => return error.MessageTooBig,
.WSAENOBUFS => return error.SystemResources,
.WSAENOTSOCK => return error.FileDescriptorNotASocket,
.WSAEAFNOSUPPORT => return error.AddressFamilyNotSupported,
// TODO: handle more errors
.WSAEDESTADDRREQ => unreachable, // A destination address is required.
.WSAEFAULT => unreachable, // The lpBuffers, lpTo, lpOverlapped, lpNumberOfBytesSent, or lpCompletionRoutine parameters are not part of the user address space, or the lpTo parameter is too small.
.WSAEHOSTUNREACH => return error.NetworkUnreachable,
// TODO: WSAEINPROGRESS, WSAEINTR
.WSAEINVAL => unreachable,
.WSAENETDOWN => return error.NetworkUnreachable,
.WSAENETRESET => return error.ConnectionResetByPeer,
.WSAENETUNREACH => return error.NetworkUnreachable,
.WSAENOTCONN => return error.SocketNotConnected,
.WSAESHUTDOWN => unreachable, // The socket has been shut down; it is not possible to WSASendTo on a socket after shutdown has been invoked with how set to SD_SEND or SD_BOTH.
.WSAEWOULDBLOCK => return error.WouldBlock,
.WSANOTINITIALISED => unreachable, // A successful WSAStartup call must occur before using this function.
else => |err| return windows.unexpectedWSAError(err),
}
} else {
@ -4850,6 +4887,11 @@ pub fn sendto(
EOPNOTSUPP => unreachable, // Some bit in the flags argument is inappropriate for the socket type.
EPIPE => return error.BrokenPipe,
EAFNOSUPPORT => return error.AddressFamilyNotSupported,
ELOOP => return error.SymLinkLoop,
ENAMETOOLONG => return error.NameTooLong,
ENOENT => return error.FileNotFound,
ENOTDIR => return error.NotDir,
EHOSTUNREACH => return error.NetworkUnreachable,
else => |err| return unexpectedErrno(err),
}
}