* Rearrange includes and drop unneccessary ones.
* Don't pull in cygwin/socket.h into sys/un.h just to get
sa_family_t. Include sys/types.h and use __sa_family_t instead.
* start including Windows headers using the w32api/ path prefix
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
fhandler_cygdrive has a size of 696 bytes on x86_64, while the next
biggest fhandler type, fhandler_pty_master, is 584 bytes. The members
responsible for the size are private to opendir/readdir/closedir usage.
fhandler_disk_file stores private readdir data in DIR->__d_internal
instead. Use equivalent method with fhandler_cygdrive. This drops
the size to 464 bytes.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Make distinct from AF_LOCAL for testing purposes. This will have
to be reverted as soon as fhandler_socket_unix goes life.
* Move saw_reuseaddr flag back to fhandler_socket status
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Insert another class fhandler_socket_wsock between fhandler_socket
and fhandler_socket_inet/fhandler_socket_local.
Also, add a new method fhandler::is_wsock_socket to allow asking
for sockets in general (is_socket) vs. Winsock-based sockets
(is_wsock_socket).
This allows to develop a new handler_socket_unix class as derived
class from fhandler_socket without any trace of wsock code left
in fhandler_socket.
While this is basically a temporary measure at this time, it may
prove useful for later interoperability with the upcoming Windows 10
AF_UNIX implementation at one point.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Rename DEV_TCP_MAJOR to DEV_SOCK_MAJOR
* Drop FH_TCP, FH_UDP, FH_ICMP in favor of single FH_INET
* Drop FH_UNIX, FH_STREAM, FH_DGRAM in favor of single FH_LOCAL
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
First cut, still incomplete
* fhandler_socket is now base class for other socket classes
* fhandler_socket_inet handles AF_INET and AF_INET6 sockets
* fhandler_socket_local handles AF_LOCAL/AF_UNIX sockets
* finally get rid of fdsock by using set_socket_handle in accept4
* align file-related calls (fstat, fstatvfs, fchown, fchmod, facl)
to Linux.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
- Move definition of windows to POSIX error mapping struct into
cygerrno.h
- Move declaration of winsock errno functions to cygerrno.h
- Input to error mapping functions is DWORD
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Dropping the 'LL' specifier leads to 32 bit truncation during timestamp
computation. Revert it. Exempt MSPERSEC which is used for 32 bit values.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Add fhandler_socket::socket method
Add fhandler_socket::set_socket_handle method, basically duplicating
what fdsock is doing. This is the first step in getting rid of fdsock.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Windows does not remove FILE_ATTRIBUTE_TEMPORARY by itself after a
file has been closed. It's just some attribute which can be set or
removed at will, despite its purpose.
Apparently there are tools out there which use FILE_ATTRIBUTE_TEMPORARY
accidentally or wrongly, even Microsoft's own tools are affected. In
the end, the filesystem is potentially full of files with this attribute
set.
Implement O_TMPFILE files with FILE_ATTRIBUTE_TEMPORARY and
FILE_ATTRIBUTE_HIDDEN set. This combination is pretty unlikely.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Fix an incorrect condition to recognize AF_LOCAL sockets in
file-related functions (fchmod, fchown, fstat, fsttavfs, facl, link).
* Return successfully when called on unnamed or abstract AF_LOCAL sockets,
except link, just as on Linux.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Use 64 bit timestamps
* Use System boot and process start time to compute starttime value per
Linux proc.5 description.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
The previous patch introduced a compiler warning on x86.
Given time_t is only 4 bytes on x86 we get a long vs. unsigned long
comparison in timeval_to_ms. Fix it by careful casting.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Redefine NSPERSEC to NS100PERSEC
* Define NSPERSEC as nanosecs per second
* Define USPERSEC as microsecs per second
* Use above constants throughout where appropriate
* Rename to_us to timespec_to_us and inline
* Rename it_bad to timespec_bad and inline
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Rearrange setsockopt/getsockopt into per level/per optname
preprocessing switch, actual call, per level/per optname
postprocessing switch for better readability as well as
extensibility.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Workaround the problem that bind doesn't fail with EADDRINUSE
if a socket with the same local address is still in TIME_WAIT.
Use IP Helper functions to check if such a socket exist and don't
even try this port, if so.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Assuming the address parameter is non-NULL, the test in
cygwin_bindresvport_sa only tests if the address family is
supported at all, which is insufficient.
Check if the incoming address family matches the socket
address family and for being AF_INET in cygwin_bindresvport
since the latter doesn't support any other family.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
We're still using ~SO_REUSEADDR because SO_EXCLUSIVEADDRUSE wasn't
defined in Mingw. But it is in Mingw-w64, so fix it.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This new function returns the name of the calling thread; works for both
cygthreads and pthreads. All calls to cygthread::name(/*void*/) replaced
by calls to mythreadname(/*void*/).
While POSIX mandates that certain socket types shall be defined by the
inclusing of <netinet/in.h>, it also says that this header may also make
visible all <sys/socket.h> symbols. Glibc does this, and without out it,
some packages end up requiring an additional #include <sys/socket.h>.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
POSIX does not mention the inclusion of <sys/time.h> in <sys/socket.h>
or <netinet/in.h>, nor is there anything in the latter two that would
require the former.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
When reading/writing block devices, Cygwin emulates Linux, providing
a byte-exact file position, albeit the underlying device drivers don't.
Unfortunately this only worked correctly for reading. The raw_write
method failed to revalidate the buffer after the read-modify-write
cycle in case len is not a multiple of the sector length. This in
turn resulted in lseek reporting a wrong file pointer.
Also, fix a condition for invalidating the buffer after writing from
a remaining read buffer.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Rounddown incoming addr on a page boundary. Without this, we may end
up with a fork error for private, anonymous maps. The reason is, we
use VirtualAlloc in this case which will potentially overcommit if
addr is not on a page boundary. This isn't taken into account in
bookkeeping, but fixup_mmaps_after_fork will eventually stumble over
this when trying to reproduce the copy-on-write pages: VirtualQuery
returns a region reaching beyond the supposedly allocated address
range and from there it goes downhill.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* change memcpy to internal _memcpy not setting the return value in %rax
* implement all memcpy-like functions as caller to _memcpy, setting %rax
to correct return value beforehand. This is possible because _memcpy
does not use %rax at all
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Since commit 8128f5482f, we have all the
non-tracing functions listed in posixoptions(7). The tracing functions
are gated by their own option, and are obsolecent anyway.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
* Don't use a bool var to store three states (-1, 0, 1).
* Correctly check for NT_SUCCESS of a function returning NTSTATUS.
* Straighten out code for better readability.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Commit 603ef545bd broke this snippet and
commit 5b312b4747 didn't help at all since
FILE_CREATE is exactly *not* the situation the test was originally
supposed to handle.
In fact, none of the open flags used by fhandler_base::open actually
hits this problem anymore, so just drop the code.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Difference to Linux: We can't create files which don't show up
in the filesystem due to OS restrictions. As a kludge, make a
(half-hearted) attempt to hide the file in the filesystem.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Fix the maximum number of sockets allowed in the session to 2048,
instead of making it relative to sizeof(wsa_event).
The original choice of 2048 was in order to fit the wsa_events array
in the .cygwin_dll_common shared section, but there is still enough
room to grow there to have 2048 sockets on 64-bit as well.
* Return an error and set errno=ENOBUF if a socket can't be created
due to this limit being reached.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Also updates the fhandler_*::ftruncate implementations to adhere to the same
semantics. The error handling semantics of those syscalls that use
fhandler_*::ftruncate are moved to the implementations of those syscalls (
in particular ftruncate() and friends still set errno and return -1 on error
but that logic is handled in the syscall implementation).
Under some not quite clear conditions, NFS fails to use its
unlink workaround to rename a file to ".nfsXYZ". The problem has been
reproduced with the GAWK testext.awk testcase. To workaround this in
Cygwin, we now call try_to_bin on NFS, too. For some reason NFS doesn't
fail to rename the .cygXYZ file to .nfsXYZ after this Cygwin rename.
Fix comment in unlink_nt accordingly.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
The "final trick" code in try_to_bin accidentally never worked on
remote drives because it relies on rootdir. Which isn't set for
remote unlinks. The code now creates a full path for remote files.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
The try_to_bin function isn't called for netapp FSes anyway, so testing
for this FS type in the function is moot.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
The first argument of gethostbyaddr needs to accept a generic pointer
to be compatible with e.g. struct in_addr *. This caused an issue
compiling krb5-1.15.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
herror etc. are MISC, rcmd etc. are BSD, addrinfo functions are
POSIX.1-2001, except for IDN functionality which is GNU.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
When fork fails, we can use "%s" now with system_sprintf for the errmsg
rather than a (potentially too small) buffer for the format string.
* fork.cc (fork): Use "%s" with system_printf now.
With "%C" format string, argument may convert in up to MB_LEN_MAX bytes.
Relying on sys_wcstombs to add a trailing zero here requires us to
provide a large enough buffer.
* smallprint.c (__small_vsprintf): Use MB_LEN_MAX+1 bufsize for "%C".
The third argument of RtlLookupFunctionEntry actually is documented as
_Inout_opt_ for both x64 and ARM, although generic doc says _Out_ only.
* exceptions.cc (__unwind_single_frame): Initialize hist variable.
In order to avoid the year 2038 problem, define time_t to a signed
integer with at least 64-bits. The type for time_t can be forced to
long with the --enable-newlib-long-time_t configure option or with the
_USE_LONG_TIME_T system configuration define.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
Corinna Vinschen
Mark Geisert
Yaakov Selkowitz
Xiaofeng Liu
Erik M. Bray
Yaakov Selkowitz
Michael Haubenwallner
Ken Brown
Sebastian Huber
Brian Inglis