The calls `Mmap` and `Munmap` were removed for z/OS.
Syscall removed occurred in: 508397

This change exposes them in a z/OS specific file
(to remove the accidental deletion of them in future refactors of the APIs for `unix-like` OSes).

Change-Id: Ice0cabfb4547cab2ffa7130b7c26d9cc38233afe
GitHub-Last-Rev: e7b4680
GitHub-Pull-Request: #186
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…rr error)

Fixes golang/go#66234

Change-Id: I1e4a94e1ca8c01a29bab18e0bf12238c511fe1c6
Reviewed-on: https://go-review.googlesource.com/c/sys/+/570435
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Serial ports are still widely used to communicate with a large range of
devices.

This change adds the remaining functions described in "Serial
Communications in Win32", enabling Go applications and libraries to be
written that support the full set of serial port functionality on
Windows.

x/sys/unix already has equivalent functionality through termios.

See https://learn.microsoft.com/en-us/previous-versions/ms810467(v=msdn.10).

Change-Id: I57f9ed6b7dbcc2331f740bd95b6483f141b0ad6f
GitHub-Last-Rev: 0a5a744
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This is a follow-up to https://go-review.googlesource.com/c/sys/+/572295
and specifically the comment
https://go-review.googlesource.com/c/sys/+/572295/comment/a00e1a2e_e3b01666/.

All other structs and methods us uint32 in golang.org/x/sys/windows
for flag bitmasks, so make the serial communication structs use uint32
to be consistent with the rest of the package.

As a side effect the DTR_CONTROL_* and RTS_CONTROL_* constants are
updated to reflect the positions of the bits in the 32-bit flags.

Change-Id: Ie19774a8ef5411d7df1e5b0d36806aa1d401fa86
GitHub-Last-Rev: bc93d94
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Change-Id: I88b628a97f5cfb76083968be2ff2e9857ce56557
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go.mod specifies go 1.18. Drop go1.n version tags for older, unsupported
versions.

Change-Id: I7a23a9f4ba558999ac417b7b4647fa1061d69c06
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Fixes golang/go#66952

Change-Id: Idaf2ce3b09baf33cf29079677a83a51ea9c4b255
GitHub-Last-Rev: eac0088
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This change syncs the IBM internal version of sys/unix with the public
repository.

There are a variety of new syscalls and const definitions that have been
accumulated over the past few years to support developers using Go on
the platform. Old simulations of calls like 'epoll' and 'fstatfs' have
been replaced with their real counterparts. The zos/s390x syscalls also
have extensive trampolining to handle zos systems that might not have
support for some of these new system calls.

Closes golang/go#67071

Change-Id: I973d9e0abca2b05365308cf2b890438e50ae5957
Reviewed-on: https://go-review.googlesource.com/c/sys/+/582035
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Change-Id: Ifcc90735b6e42b6c9971d4ba15c31b8169e005fe
Reviewed-on: https://go-review.googlesource.com/c/sys/+/579996
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In the go windows package, you can get user information by using
`NetUserGetInfo` along with a specified level. However, there is
no way to get a list of the users.
The only options are to
1. know the users,
2. brute force users, or
3. use an external tool or command (`net users`).

I suggest adding a function that implements the windows api for
`NetUserEnum`. This will allow a built in way to enumerate
users and follow the standard.

A side note is that I used `buf **byte` because
it is how the others are done, but using `buf *byte`
works just as well.

Change-Id: Ifcc916659eb1d796175cd18acd2e81f2661bfcd2
GitHub-Last-Rev: 3d01bca
GitHub-Pull-Request: #190
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Change-Id: Ib7bd9dabfcb8234c522ec357d32bfa3e87af53db
GitHub-Last-Rev: 4bea205
GitHub-Pull-Request: #194
Reviewed-on: https://go-review.googlesource.com/c/sys/+/585135
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Change-Id: I5c2b996180073ca10f1b7c86201a19eaf0557e43
GitHub-Last-Rev: a092f56
GitHub-Pull-Request: #195
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This CL skips IoctlGetEthtoolDrvinfo on busy interface tests since
ethtool getting the same result too.

Fixes golang/go#67350

Change-Id: Ia65678e3caab8a9dd42b9cdb8e4cb7f7f0b476da
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…dlerEx

windows.RegisterServiceCtrlHandlerEx context parameter is uintptr, so it
is unsafe to pass pointers in that parameter. Use theService global
variable in ctlHandler function instead.

Fixes golang/go#67437

Change-Id: I84c910eaa354603c2a5114421cd61788cb40b86f
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GetAce obtains a pointer to an access control entry (ACE) in an
discretionary access control list (DACL), which controls access to
an object.

Adds the ACE_HEADER and ACCESS_ALLOWED_ACE structs.
Adds GetEntriesFromACL function which returns an array of ACEs from the
given ACL if no errors have been encountered.

References:

- https://learn.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-ace_header
- https://learn.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-access_allowed_ace
- https://learn.microsoft.com/en-us/windows/win32/api/securitybaseapi/nf-securitybaseapi-getace

Fixes golang/go#66850

Change-Id: I98306ff7e947e586a58d563d364169a2555492f4
GitHub-Last-Rev: d14ca7f
GitHub-Pull-Request: #191
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Fixes golang/go#56123

Change-Id: I63a7a6fb3a5b1bb556ac19d76a1e0b04a03ebcfa
GitHub-Last-Rev: 39dbc8e
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NetBSD apparently doesn't allow remapping into used address space.
This means that the test that uses mremap to move a mmapped page
into a new address should first mmap (to reserve)
then munmap (to free) the destination.

Fixes golang/go#68180

Change-Id: If66b67e7166ca4dc4331a8cfc3e3a285416e9849
GitHub-Last-Rev: 92058c2
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OpenBSD apparently doesn't allow unmapping address space if part of the region is already unmapped.
This tweaks the test so that munmapping twice no longer happens.

Fixes golang/go#68181

Change-Id: I588255f5e10ec015dbb7188eac79cee6be570680
GitHub-Last-Rev: 2535abd
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Fixes golang/go#68226

Change-Id: I92052e2319e4edde21b5e1e47ddb5b261d81448a
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