On Windows a pair end now reports POLLIN after the peer's shutdown or close.
The console also reports POLLHUP after close; the loopback connection cannot
tell a close from a shutdown.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
WSAPoll reports POLLHUP alone for a stream socket whose peer has closed, so
poll never returned POLLIN for it and a caller waiting for POLLIN did not see
the end of the stream. sopoll_generic reports a socket that can receive no
more as readable and adds POLLHUP only once it can send no more either.
poll now adds the requested read bit and keeps POLLHUP only after the socket
shut its own sending side. A reset or refused connection keeps WSAPoll's flags.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
FreeBSD 11.4's soreceive_generic waits in sbwait (sys/kern/uipc_socket.c,
uipc_sockbuf.c), whose msleep_sbt on so_rcv.sb_timeo returns EWOULDBLOCK
(35) for every socket type when SO_RCVTIMEO expires. On Windows the host
socket is non-blocking and native_transfer enforces the timeout itself,
but it reported WSAETIMEDOUT, which only datagram receives turned into
EAGAIN; a stream receive failed with ETIMEDOUT (60). A receive that
reaches the stored timeout now reports WSAEWOULDBLOCK, so every
receive returns EAGAIN, and a host WSAETIMEDOUT still maps to ETIMEDOUT.
FreeBSD 11 sendfile checks the file descriptor first, then looks up the
socket with getsock_cap, which answers ENOTSOCK for an open descriptor
that is not a socket and EBADF for one that is not open
(sys/kern/kern_sendfile.c, sys/kern/uipc_syscalls.c).
sendfile replaced the errno that Lookup had already set with EBADF. It
now reports the errno Lookup chose, so an open non-socket gives ENOTSOCK
and a closed descriptor still gives EBADF. The sentence about this gap
is cut from the sendfile debt entry and guest_sendfile covers both cases.
FreeBSD 11 fopen opens the path with _open, and vn_open_vnode refuses a
directory only for FWRITE or O_TRUNC, so fopen of a directory in a read
mode succeeds; Linux hosts already open it. On Windows CreateFileW
without FILE_FLAG_BACKUP_SEMANTICS refused it with EACCES.
fopen now opens such a path as a libkernel directory descriptor, which
libkernel registers in libc when it loads, and fclose and freopen remove
it from libkernel's table. Reads on the stream fail with EISDIR and set
the error indicator, as on a Linux host and FreeBSD's tmpfs: the Windows
CRT fails them already but reports EINVAL. Writes fail with EBADF, and
fseek, ftell and ungetc work, as on any read-only stream.
A PS5 (firmware 13.60) allocates with any flag value, zero-fills only for
flag 2 and returns 64-byte aligned blocks. Record the measured behaviour of
sceNetGetIfName, sceNetGetRandom, sceNetGetSystemTime, sceNetMemoryFree and
sceNetUsleep, which already match the console, and keep only their open gaps.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
FreeBSD 11.4's sys_flock only requires a vnode descriptor, so flock on a directory descriptor succeeds. On Windows the call reached LockFileEx, which rejects a directory handle with ERROR_INVALID_PARAMETER, and flock_nid_postfix turned that into a runtime_error that aborted the process. A directory descriptor now returns 0 without taking a lock; the new guest_file_lock_directory case covers it and the debt entry records that no lock is held.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
A payload on a PS5 (firmware 13.60) shows sceHttpUriCopy clears the
whole output and all prepare bytes of the pool before it reads the
source, so a source that is the output or lies in the pool copies as
empty. Read the source after clearing, clear the output with its
padding, and test the measured layout, failures and aliasing.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Romans Pokrovskis