bsd.own.mk: rename GCC_NO_* to CC_WNO_*

Rename compiler-warning-disable variables from
GCC_NO_warning
to
CC_WNO_warning
where warning is the full warning name as used by the compiler.

GCC_NO_IMPLICIT_FALLTHRU is CC_WNO_IMPLICIT_FALLTHROUGH

Using the convention CC_compilerflag, where compilerflag
is based on the full compiler flag name.

make umount NAME= work

introduce some common variables for use in GCC warning disables:

GCC_NO_FORMAT_TRUNCATION -Wno-format-truncation (GCC 7/8)
GCC_NO_STRINGOP_TRUNCATION -Wno-stringop-truncation (GCC 8)
GCC_NO_STRINGOP_OVERFLOW -Wno-stringop-overflow (GCC 8)
GCC_NO_CAST_FUNCTION_TYPE -Wno-cast-function-type (GCC 8)

use these to turn off warnings for most GCC-8 complaints. many
of these are false positives, most of the real bugs are already
commited, or are yet to come.


we plan to introduce versions of (some?) of these that use the
"-Wno-error=" form, which still displays the warnings but does
not make it an error, and all of the above will be re-considered
as either being "fix me" (warning still displayed) or "warning
is wrong."

branches: 1.18.28;
Instead of borrowing the mount code to get the nfs arguments, just use
the system call directly. It is shorter and works...

Use the protocol we mounted the filesystem with instead of always udp.
(untested, but should fail back to udp).

Izumi Tsutsui pointed out that we don't need vfslist.c (from ../mount)
if we are defining SMALL.

Set -DSMALL if SMALLPROG defined - ie building install ramdisk images.
Removes the code that uses rpc to query remote systems about nfs mounts.
The last references to the xdr routines escape - saving 64k+

WARNS=2 is the default defined in sbin/Makefile.inc. (thanks wiz)

Remove main() prototype; WARNS=2

Use ${NETBSDSRCDIR}/some/path instead of ${.CURDIR}/../../some/path

CFLAGS->CPPFLAGS

resolve conflicts from lite-2 merge

convert to new RCS Id conventions; reduce my headache

specify man pages the new way.

Fix a couple of Makefile bogons.

Update from 4.4-Lite, with local changes.

there is no librpc any more

Add RCS indentifiers.

changed "Id" to "Header" for rcsids

added rcs ids to all files

branches: 1.1.1;
Initial revision

PR bin/59495

Make umount less noisy when a single -v is used (just say
what has been unmounted), and only include details of
running (or not running) external umount_fstype progs
when more than one -v is given.

While here, make it more clear in the messages produce
when the -F (fake it) option is used, that nothing was
actually unmounted (just what would have been).

Man page updated to match.

umount.8: note a limitation of the -d option

(As discussed in PR bin/57903.)

umount.8: some minor corrections after -d addition

Use the term "unconfigure" rather than "detach", since that's what's
consistently used elsewhere to describe this on NetBSD (as opposed to
other OSes the commit is mimicking). Also fix grammar and reflect the
date this materially changed, source-wise (rather than the day the
patch arrived, over a year ago).

GitHub/31: Ricardo Branco: Add -d flag to umount to detach vnds, like FreeBSD
and Linux.

branches: 1.19.4;
Fix grammar

s/filesystem/file system/

umount appeared in V1
http://minnie.tuhs.org/cgi-bin/utree.pl?file=V1/man/man1/umount.1

Amend HISTORY.
Bump date.

Document external unmount programs. PR 698. Bump date.

Add an exmaple of unmounting all file systems apart from NFS and MFS
e.g,

umount -a -t nonfs,mfs

This makes it clear that the "no prefix" only needs to be on the first
file-system argument to -t. The mount(8) man page has a clear example
of this but for some reason umount(8) was missing one.

Typo fix (to umount is not yet a verb). Via OpenBSD bugs mailing list.

Call -t argument fstypelist, to be in sync with code
and usage. Okayed by christos.

Make options match reality and agree with the source.
Don't document -A; it is there for compatibility only, and we want to
deprecate its use.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22308, verified by myself.

.Nm does not need a dummy argument ("") before punctuation or
for correct formatting of the SYNOPSIS any longer.

Drop arguments of .Os.

change ``-a'' to be a synonym for ``-A''.
addresses PR 7629.

branches: 1.7.8;
Changes to implement "-R" (raw) option to umount, per PR#4030.

document -F flag; part of PR 4030 from der Mouse

Fix .Nm usage.

resolve conflicts from lite-2 merge

* cleanup for WARNS=1
* fix .Nm usage

convert to new RCS Id conventions; reduce my headache

branches: 1.1.1;
Update from 4.4-Lite, with local changes.

PR bin/59495

Make umount less noisy when a single -v is used (just say
what has been unmounted), and only include details of
running (or not running) external umount_fstype progs
when more than one -v is given.

While here, make it more clear in the messages produce
when the -F (fake it) option is used, that nothing was
actually unmounted (just what would have been).

Man page updated to match.

move sfs declaration in #ifdef SMALL

GitHub/31: Ricardo Branco: Add -d flag to umount to detach vnds, like FreeBSD
and Linux.

branches: 1.53.8;
make umount NAME= work

Don't assume that getaddrinfo sets the result pointer to null when it
fails. (In fact it probably doesn't...)

Fix previous to avoid using an uninitialized pointer when using -R (raw).

If an external unmount program of the form "umount_TYPE" exists
(e.g. umount_ffs, umount_nfs, etc.) exec it instead of calling
unmount(2).

Closes PR 698.

Note that the original plan for the PR also involved adding a generic
facility to store an alternate FS type name in the kernel to use when
unmounting. This was intended to support filesystems implemented as
loopback nfs servers, where the visible mount would be of type "nfs"
pointing at localhost; in that case one would want to be able to
provide an additional string in order to run an unmount program that
would both remove that mount and also shut down the loopback nfs
server daemon.

However, in the 21+ years since the PR was filed, loopback nfs servers
have gone out of favor (for good reasons) so I don't see any need to
worry about this case at present, especially since the PR has been
hanging around this long anyway. (If anyone still has a loopback nfs
server that they want to use a custom unmount program with, file a new
PR and assign it to me and I'll deal with it specifically in the nfs
mount args structure, which unmount already knows how to retrieve and
examine.)

It is my understanding that filesystems implemented with fuse (which
has displaced the loopback nfs server model) can already set the FS
type field so no further work is needed to allow them to use a custom
unmount program. If this is not the case, please let me know and I'll
attend to it.

There is no longer any need that I see to provide a general facility
for storing an alternate filesystem type name.

(One might also ask whether there's any real need for this
functionality at all any more; this is a fair question, but (a) the
change is small and (b) there are certainly cases when doing FS
research where you want a custom unmount program; been there & done
that.)

When SMALL, if realpath() fails, warn() using the failing path instead
of the buffer realpath has declined to write anything into.

Remove useless and harmful sync(2) call in umount(8)

Remove sync(2) call before unmount(2) in umount(8). This sync(2) is useless
since unmount(2) will perform a VFS_SYNC anyway.

But moreover, this sync(2) may be harmful, as there are some situation where
it cannot return (unreachable NFS server, for instance), causing umount -f
to be uneffective.

branches: 1.47.6;
move proto to small

Instead of borrowing the mount code to get the nfs arguments, just use
the system call directly. It is shorter and works...

one copy of the name is enough, and free it.

Use the protocol we mounted the filesystem with instead of always udp.
(untested, but should fail back to udp).

branches: 1.43.18; 1.43.24;
Refactor mount utilities to provide a mount_fs_parseargs() routine.
Use this routine both in mount_fs and rump_fs to provide equivalent
command line parameters and therefore usage interchangeability.
While doing this, combine some common mountgoop to mountprog.h

Remove the \n and tabs from the __COPYRIGHT() strings.
(Tweak some to use a consistent format.)

branches: 1.41.4; 1.41.8;
convert __attribute__s to applicable cdefs.h macros

branches: 1.40.4; 1.40.6;
kill MFSNAMELEN

Make all mount(2) return value error checks against -1. Some file
systems just checked != 0, breaking MNT_GETARGS. Others worked with < 0,
but make them check against -1 too for consistency. And sprinkle some
stylish line wrapping where appropriate.

Move WARNS=3 to the Makefile.inc, and add a little const to the remaining
programs that did not compile before.

Fix PR#3205 for the -a case: when the list of mount points comes from the
kernel, always use "raw" mode (-R option) so unmounting odd mount points works.
Also, fix available options in SMALL mode to include -R, not -r.

Remove main() prototype; WARNS=2

pass data to a function via an argument instead of via a global variable.
this avoids a name collision with libcurses functions when both are
present in a crunched static binary. part of PR 26458.

add #ifdef SMALL so that we can use this in the install media.

Replace the statfs() family of system calls with statvfs().
Retain binary compatibility.

stop umount temporarily modifying what might be argv[n].

KNF and const sprinkle

Fix 'umount host:/filesystem' - it is documented on the man page but hasn't actually
worked for 10 years!
Remove the (broken) code that once supported 'umount /filesystem@host' since that
syntax isn't used anywhere.
Fixes PR bin/22099

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22308, verified by myself.

branches: 1.28.2;
Adapt to new RPC interface. Use getaddrinfo(), not gethostbyname().

change ``-a'' to be a synonym for ``-A''.
addresses PR 7629.

branches: 1.26.2;
Since our gcc doesn't warn about NULL format strings anymore, we can
fix the incorrect err(1, "%s", "") et al.
Closes PR bin/7592 by cgd.

branches: 1.25.4;
Fix PR7747: umount -R dumps core
(fix by Ronald Khoo from PR applied)

Changes to implement "-R" (raw) option to umount, per PR#4030.

No need to include <sys/socketvar.h>.

document -F flag; part of PR 4030 from der Mouse

Since umount works from the top we have to traverse the information
returned by getmountinfo() from the top too. Otherwise we get
the wrong mount data in case of 2 mounts on 1 pountpoint.

branches: 1.20.2;
resolve conflicts from lite-2 merge

* cleanup for WARNS=1
* fix .Nm usage

Code previous somewhat more compactly.

Do not force the ISBLK and ISDIR checks on the mount point.

Use kernel mount info rather than fstab. From greywolf@starwolf.com, slightly
modified.

Fix the case where stat() fails, so that the file system is still unmounted.

don't assume f_fstypename is larger than MFSNAMELEN or is nul-terminated

convert to new RCS Id conventions; reduce my headache

Make arg to selected() const. Disallow multiple `-t' options.

Cosmetic changes to type list parsing.

Be careful to only parse the host name from the mount path for NFS mounts.

branches: 1.9.2;
several fixes from Mark Weaver <mhw@cs.brown.edu>, relating to error
reporting. (pr 431)

fix from John Kohl to return correct status when unmounting named fs's.

branches: 1.7.2;
Update from 4.4-Lite, with local changes.

fs type names, and much clean

should bzero automatic sockaddr's before use

Add RCS identifiers.

changed "Id" to "Header" for rcsids

added rcs ids to all files

branches: 1.1.1;
Initial revision