67 lines
2.0 KiB
Go
67 lines
2.0 KiB
Go
package sys
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import "syscall"
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// These are errors not defined in the syscall package. They are prefixed with
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// underscore to avoid exporting them.
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//
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// See https://learn.microsoft.com/en-us/windows/win32/debug/system-error-codes--0-499-
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const (
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// _ERROR_INVALID_HANDLE is a Windows error returned by syscall.Write
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// instead of syscall.EBADF
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_ERROR_INVALID_HANDLE = syscall.Errno(6)
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// _ERROR_INVALID_NAME is a Windows error returned by open when a file
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// path has a trailing slash
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_ERROR_INVALID_NAME = syscall.Errno(0x7B)
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// _ERROR_NEGATIVE_SEEK is a Windows error returned by os.Truncate
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// instead of syscall.EINVAL
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_ERROR_NEGATIVE_SEEK = syscall.Errno(0x83)
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// _ERROR_DIRECTORY is a Windows error returned by syscall.Rmdir
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// instead of syscall.ENOTDIR
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_ERROR_DIRECTORY = syscall.Errno(0x10B)
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// _ERROR_NOT_A_REPARSE_POINT is a Windows error returned by os.Readlink
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// instead of syscall.EINVAL
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_ERROR_NOT_A_REPARSE_POINT = syscall.Errno(0x1126)
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// _ERROR_INVALID_SOCKET is a Windows error returned by winsock_select
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// when a given handle is not a socket.
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_ERROR_INVALID_SOCKET = syscall.Errno(0x2736)
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)
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func errorToErrno(err error) Errno {
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switch err := err.(type) {
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case Errno:
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return err
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case syscall.Errno:
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// Note: In windows, _ERROR_PATH_NOT_FOUND(0x3) maps to syscall.ENOTDIR
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switch err {
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case syscall.ERROR_ALREADY_EXISTS:
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return EEXIST
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case _ERROR_DIRECTORY:
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return ENOTDIR
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case syscall.ERROR_DIR_NOT_EMPTY:
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return ENOTEMPTY
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case syscall.ERROR_FILE_EXISTS:
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return EEXIST
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case _ERROR_INVALID_HANDLE, _ERROR_INVALID_SOCKET:
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return EBADF
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case syscall.ERROR_ACCESS_DENIED:
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// POSIX read and write functions expect EBADF, not EACCES when not
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// open for reading or writing.
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return EBADF
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case syscall.ERROR_PRIVILEGE_NOT_HELD:
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return EPERM
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case _ERROR_NEGATIVE_SEEK, _ERROR_INVALID_NAME, _ERROR_NOT_A_REPARSE_POINT:
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return EINVAL
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}
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errno, _ := syscallToErrno(err)
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return errno
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default:
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return EIO
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}
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}
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