faccessat(2): Honor AT_SYMLINK_NOFOLLOW

Make the system call honor `AT_SYMLINK_NOFOLLOW`.

Also enable this from `linux_faccessat2` where the issue arised the first time.
Update manual pages accordi

faccessat(2): Honor AT_SYMLINK_NOFOLLOW

Make the system call honor `AT_SYMLINK_NOFOLLOW`.

Also enable this from `linux_faccessat2` where the issue arised the first time.
Update manual pages accordingly.

PR: 275295
Reported by: kenrap@kennethraplee.com
Approved by: kib@
Differential Revision: https://reviews.freebsd.org/D46267

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access(2): Discourage use of these system calls.

Fixes: 421025a274fb
PR: 262895
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D45240

access.2: Mention that lstat(2) should be used for symbolic links

access(), eaccess() and faccessat() will always dereference
symbolic links.

So add a note in the manual page, that lstat(2) should

access.2: Mention that lstat(2) should be used for symbolic links

access(), eaccess() and faccessat() will always dereference
symbolic links.

So add a note in the manual page, that lstat(2) should be
used in the case of symbolic links.

PR: 262895
Reviewed by: gbe, pauamma_gundo.com
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D44890

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libsys: relocate implementations and manpages

Remove core system call implementations and documentation to lib/libsys
and lib/libsys/<arch> from lib/libc/sys and lib/libc/<arch>/<sys>.
Update paths

libsys: relocate implementations and manpages

Remove core system call implementations and documentation to lib/libsys
and lib/libsys/<arch> from lib/libc/sys and lib/libc/<arch>/<sys>.
Update paths to allow libc to find them in their new home.

Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908

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lib: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl s

lib: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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Remove $FreeBSD$: one-line nroff pattern

Remove /^\.\\"\s*\$FreeBSD\$$\n/

Add AT_EMPTY_PATH for several *at(2) syscalls

It is currently allowed to fchownat(2), fchmodat(2), fchflagsat(2),
utimensat(2), fstatat(2), and linkat(2).

For linkat(2), PRIV_VFS_FHOPEN privilege i

Add AT_EMPTY_PATH for several *at(2) syscalls

It is currently allowed to fchownat(2), fchmodat(2), fchflagsat(2),
utimensat(2), fstatat(2), and linkat(2).

For linkat(2), PRIV_VFS_FHOPEN privilege is required to exercise the flag.
It allows to link any open file.

Requested by: trasz
Tested by: pho, trasz
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D29111

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open(2): Remove O_BENEATH and AT_BENEATH

with the reasoning that the flags did not worked properly, and were not
shipped in a release.

O_RESOLVE_BENEATH is kept as useful.

Reviewed by: markj
Teste

open(2): Remove O_BENEATH and AT_BENEATH

with the reasoning that the flags did not worked properly, and were not
shipped in a release.

O_RESOLVE_BENEATH is kept as useful.

Reviewed by: markj
Tested by: arichardson, pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D28907

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Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths.

PR: 248335
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revisi

Document {O,AT}_RESOLVE_BENEATH and new O_BENEATH behavior for relative paths.

PR: 248335
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D25886

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Document EINTEGRITY errors for many system calls.

EINTEGRITY was previously documented as a UFS-specific error for
mount(2). This documents EINTEGRITY as a filesystem-independent error
that may be

Document EINTEGRITY errors for many system calls.

EINTEGRITY was previously documented as a UFS-specific error for
mount(2). This documents EINTEGRITY as a filesystem-independent error
that may be reported by the backing store of a filesystem.

While here, document EIO as a filesystem-independent error for both
mount(2) and posix_fadvise(2). EIO was previously only documented for
UFS for mount(2).

Reviewed by: mckusick
Suggested by: mckusick
MFC after: 2 weeks
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24168

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First draft of documentation for AT/O_BENEATH handling of the absolute
paths.

It was decided that committing the code and drafting of the man page
update is better than allowing the code to rot unti

First draft of documentation for AT/O_BENEATH handling of the absolute
paths.

It was decided that committing the code and drafting of the man page
update is better than allowing the code to rot until wordsmithing
happens.

Reviewed by: jilles (previous version)
Discussed with: brooks, jilles, emaste
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D17714

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Implement O_BENEATH and AT_BENEATH.

Flags prevent open(2) and *at(2) vfs syscalls name lookup from
escaping the starting directory. Supposedly the interface is similar
to the same proposed Linux fl

Implement O_BENEATH and AT_BENEATH.

Flags prevent open(2) and *at(2) vfs syscalls name lookup from
escaping the starting directory. Supposedly the interface is similar
to the same proposed Linux flags.

Reviewed by: jilles (code, previous version of manpages), 0mp (manpages)
Discussed with: allanjude, emaste, jonathan
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D17547

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Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

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Various mdoc fixes and a few EOL whitespace removals.

Found with: mandoc -Tlint

Bump .Dd for the content change done to access(2) in r271655

PR: 181155
Sponsored by: EMC / Isilon Storage Division

Validate the mode argument in access, eaccess, and faccessat for optional
POSIX compliance and to improve compatibility with Linux and NetBSD

The issue was identified with lib/libc/sys/t_access:acce

Validate the mode argument in access, eaccess, and faccessat for optional
POSIX compliance and to improve compatibility with Linux and NetBSD

The issue was identified with lib/libc/sys/t_access:access_inval from
NetBSD

Update the manpage accordingly

PR: 181155
Reviewed by: jilles (code), jmmv (code), wblock (manpage), wollman (code)
MFC after: 4 weeks
Phabric: D678 (code), D786 (manpage)
Sponsored by: EMC / Isilon Storage Division

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mdoc: move CAVEATS, BUGS and SECURITY CONSIDERATIONS sections to the
bottom of the manpages and order them consistently.

GNU groff doesn't care about the ordering, and doesn't even mention
CAVEATS a

mdoc: move CAVEATS, BUGS and SECURITY CONSIDERATIONS sections to the
bottom of the manpages and order them consistently.

GNU groff doesn't care about the ordering, and doesn't even mention
CAVEATS and SECURITY CONSIDERATIONS as common sections and where to put
them.

Found by: mdocml lint run
Reviewed by: ru

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Man pages for the openat(2), fexecve(2) and related syscalls.

Reviewed by: ru

After issueing a ntpdate [1] I noticed it's already 2008, reflect that
in the last modified date.

Noticed by: brueffer [1]

Fix typo (s/existance/existence/)

Noticed by: ceri

Fix some style nits.

Prodded by: brueffer
MFC After: 3 days

Make the warning a bit less 'broad' then it used to be. The access
is seems to be a problem for SUID applications, which we like to
prevent as much as possible.

PR: docs/39530
Submitted by: Soren

Make the warning a bit less 'broad' then it used to be. The access
is seems to be a problem for SUID applications, which we like to
prevent as much as possible.

PR: docs/39530
Submitted by: Soren Spies <sspies at apple dot com>
MFC After: 3 days

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Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

mdoc(7) police: "The .Fa argument.".

mdoc(7) police: Tidy up the syscall language.

Stop calling system calls "function calls".

Use "The .Fn system call" a-la "The .Nm utility".

When referring to a non-BSD implementation in
the HISTOR

mdoc(7) police: Tidy up the syscall language.

Stop calling system calls "function calls".

Use "The .Fn system call" a-la "The .Nm utility".

When referring to a non-BSD implementation in
the HISTORY section, call syscall a function,
to be safe.

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