diff options
Diffstat (limited to 'trans/streamio.c')
| -rw-r--r-- | trans/streamio.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/trans/streamio.c b/trans/streamio.c index a80975f3..5539c8ea 100644 --- a/trans/streamio.c +++ b/trans/streamio.c @@ -560,9 +560,6 @@ io_select_common (struct trivfs_protid *cred, if (!cred) return EOPNOTSUPP; - if (!(cred->po->openmodes & O_WRITE) && (*type & SELECT_WRITE)) - return EBADF; - *type &= SELECT_READ | SELECT_WRITE; if (*type == 0) @@ -575,11 +572,10 @@ io_select_common (struct trivfs_protid *cred, pthread_mutex_lock (&global_lock); if ((*type & SELECT_READ) && buffer_readable (input_buffer)) available |= SELECT_READ; - if (output_buffer) - { - if ((*type & SELECT_WRITE) && buffer_writable (output_buffer)) - available |= SELECT_WRITE; - } + if ((*type & SELECT_WRITE) && + (!(cred->po->openmodes & O_WRITE) || + (buffer_writable && buffer_writable (output_buffer)))) + available |= SELECT_WRITE; if (available) { |