diff options
Diffstat (limited to 'pkg/p9/handlers.go')
| -rw-r--r-- | pkg/p9/handlers.go | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/pkg/p9/handlers.go b/pkg/p9/handlers.go index ba9a55d6d..51869c7d6 100644 --- a/pkg/p9/handlers.go +++ b/pkg/p9/handlers.go @@ -272,15 +272,15 @@ func (t *Tlopen) handle(cs *connState) message { return newErr(syscall.EINVAL) } - // Are flags valid? - flags := t.Flags &^ OpenFlagsIgnoreMask - if flags&^OpenFlagsModeMask != 0 { - return newErr(syscall.EINVAL) - } - - // Is this an attempt to open a directory as writable? Don't accept. - if ref.mode.IsDir() && flags != ReadOnly { - return newErr(syscall.EINVAL) + if ref.mode.IsDir() { + // Directory must be opened ReadOnly. + if t.Flags&OpenFlagsModeMask != ReadOnly { + return newErr(syscall.EISDIR) + } + // Directory not truncatable. + if t.Flags&OpenTruncate != 0 { + return newErr(syscall.EISDIR) + } } var ( |