std.os: make EBADF return error for read and write
parent
374e3e42e0
commit
f47c6d3c6b
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@ -551,6 +551,7 @@ fn preadNoEof(file: std.fs.File, buf: []u8, offset: u64) !void {
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error.InputOutput => return error.FileSystem,
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error.Unexpected => return error.Unexpected,
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error.WouldBlock => return error.Unexpected,
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error.NotOpenForReading => return error.Unexpected,
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};
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if (len == 0) return error.UnexpectedEndOfFile;
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i += len;
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@ -296,6 +296,7 @@ pub const ReadError = error{
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BrokenPipe,
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ConnectionResetByPeer,
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ConnectionTimedOut,
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NotOpenForReading,
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/// This error occurs when no global event loop is configured,
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/// and reading from the file descriptor would block.
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@ -359,7 +360,7 @@ pub fn read(fd: fd_t, buf: []u8) ReadError!usize {
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} else {
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return error.WouldBlock;
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},
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EBADF => unreachable, // Always a race condition.
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EBADF => return error.NotOpenForReading, // Can be a race condition.
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EIO => return error.InputOutput,
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EISDIR => return error.IsDir,
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ENOBUFS => return error.SystemResources,
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@ -420,7 +421,7 @@ pub fn readv(fd: fd_t, iov: []const iovec) ReadError!usize {
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} else {
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return error.WouldBlock;
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},
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EBADF => unreachable, // always a race condition
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EBADF => return error.NotOpenForReading, // can be a race condition
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EIO => return error.InputOutput,
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EISDIR => return error.IsDir,
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ENOBUFS => return error.SystemResources,
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@ -483,7 +484,7 @@ pub fn pread(fd: fd_t, buf: []u8, offset: u64) PReadError!usize {
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} else {
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return error.WouldBlock;
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},
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EBADF => unreachable, // Always a race condition.
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EBADF => return error.NotOpenForReading, // Can be a race condition.
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EIO => return error.InputOutput,
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EISDIR => return error.IsDir,
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ENOBUFS => return error.SystemResources,
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@ -623,7 +624,7 @@ pub fn preadv(fd: fd_t, iov: []const iovec, offset: u64) PReadError!usize {
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} else {
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return error.WouldBlock;
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},
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EBADF => unreachable, // always a race condition
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EBADF => return error.NotOpenForReading, // can be a race condition
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EIO => return error.InputOutput,
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EISDIR => return error.IsDir,
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ENOBUFS => return error.SystemResources,
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@ -645,6 +646,7 @@ pub const WriteError = error{
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BrokenPipe,
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SystemResources,
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OperationAborted,
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NotOpenForWriting,
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/// This error occurs when no global event loop is configured,
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/// and reading from the file descriptor would block.
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@ -720,7 +722,7 @@ pub fn write(fd: fd_t, bytes: []const u8) WriteError!usize {
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} else {
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return error.WouldBlock;
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},
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EBADF => unreachable, // Always a race condition.
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EBADF => return error.NotOpenForWriting, // can be a race condition.
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EDESTADDRREQ => unreachable, // `connect` was never called.
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EDQUOT => return error.DiskQuota,
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EFBIG => return error.FileTooBig,
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@ -792,7 +794,7 @@ pub fn writev(fd: fd_t, iov: []const iovec_const) WriteError!usize {
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} else {
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return error.WouldBlock;
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},
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EBADF => unreachable, // Always a race condition.
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EBADF => return error.NotOpenForWriting, // Can be a race condition.
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EDESTADDRREQ => unreachable, // `connect` was never called.
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EDQUOT => return error.DiskQuota,
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EFBIG => return error.FileTooBig,
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@ -880,7 +882,7 @@ pub fn pwrite(fd: fd_t, bytes: []const u8, offset: u64) PWriteError!usize {
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} else {
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return error.WouldBlock;
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},
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EBADF => unreachable, // Always a race condition.
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EBADF => return error.NotOpenForWriting, // Can be a race condition.
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EDESTADDRREQ => unreachable, // `connect` was never called.
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EDQUOT => return error.DiskQuota,
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EFBIG => return error.FileTooBig,
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@ -967,7 +969,7 @@ pub fn pwritev(fd: fd_t, iov: []const iovec_const, offset: u64) PWriteError!usiz
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} else {
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return error.WouldBlock;
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},
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EBADF => unreachable, // Always a race condition.
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EBADF => return error.NotOpenForWriting, // Can be a race condition.
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EDESTADDRREQ => unreachable, // `connect` was never called.
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EDQUOT => return error.DiskQuota,
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EFBIG => return error.FileTooBig,
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@ -1162,7 +1164,7 @@ pub fn dup2(old_fd: fd_t, new_fd: fd_t) !void {
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EBUSY, EINTR => continue,
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EMFILE => return error.ProcessFdQuotaExceeded,
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EINVAL => unreachable, // invalid parameters passed to dup2
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EBADF => unreachable, // always a race condition
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EBADF => unreachable, // invalid file descriptor
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else => |err| return unexpectedErrno(err),
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}
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}
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@ -851,6 +851,7 @@ pub const NativeTargetInfo = struct {
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const len = file.pread(buf[i .. buf.len - i], offset + i) catch |err| switch (err) {
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error.OperationAborted => unreachable, // Windows-only
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error.WouldBlock => unreachable, // Did not request blocking mode
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error.NotOpenForReading => unreachable,
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error.SystemResources => return error.SystemResources,
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error.IsDir => return error.UnableToReadElfFile,
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error.BrokenPipe => return error.UnableToReadElfFile,
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@ -696,6 +696,7 @@ const FmtError = error{
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LinkQuotaExceeded,
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FileBusy,
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EndOfStream,
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NotOpenForWriting,
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} || fs.File.OpenError;
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fn fmtPath(fmt: *Fmt, file_path: []const u8, check_mode: bool, dir: fs.Dir, sub_path: []const u8) FmtError!void {
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@ -761,6 +762,7 @@ fn fmtPathFile(
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const source_code = source_file.readAllAlloc(fmt.gpa, stat.size, max_src_size) catch |err| switch (err) {
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error.ConnectionResetByPeer => unreachable,
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error.ConnectionTimedOut => unreachable,
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error.NotOpenForReading => unreachable,
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else => |e| return e,
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};
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source_file.close();
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@ -153,6 +153,7 @@ export fn stage2_render_ast(tree: *ast.Tree, output_file: *FILE) Error {
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const c_out_stream = std.io.cOutStream(output_file);
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_ = std.zig.render(std.heap.c_allocator, c_out_stream, tree) catch |e| switch (e) {
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error.WouldBlock => unreachable, // stage1 opens stuff in exclusively blocking mode
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error.NotOpenForWriting => unreachable,
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error.SystemResources => return .SystemResources,
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error.OperationAborted => return .OperationAborted,
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error.BrokenPipe => return .BrokenPipe,
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@ -585,6 +586,8 @@ export fn stage2_libc_parse(stage1_libc: *Stage2LibCInstallation, libc_file_z: [
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error.SystemResources => return .SystemResources,
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error.OperationAborted => return .OperationAborted,
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error.WouldBlock => unreachable,
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error.NotOpenForWriting => unreachable,
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error.NotOpenForReading => unreachable,
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error.Unexpected => return .Unexpected,
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error.EndOfStream => return .EndOfFile,
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error.IsDir => return .IsDir,
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@ -640,6 +643,7 @@ export fn stage2_libc_render(stage1_libc: *Stage2LibCInstallation, output_file:
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const c_out_stream = std.io.cOutStream(output_file);
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libc.render(c_out_stream) catch |err| switch (err) {
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error.WouldBlock => unreachable, // stage1 opens stuff in exclusively blocking mode
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error.NotOpenForWriting => unreachable,
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error.SystemResources => return .SystemResources,
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error.OperationAborted => return .OperationAborted,
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error.BrokenPipe => return .BrokenPipe,
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