libblkid: vfat: Fix reading FAT32 boot label

FAT32 can be formatted with boot sign 0x28 to indicate that only serial id
is present or with boot sign 0x29 which indicates that both boot label and
serial id is present.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>

libblkid: vfat: Fix reading FAT16 boot label and serial id

Older FAT16 variants do not have to contain boot label or serial id. Boot
sign 0x28 indicates that only serial id is present and boot sign 0x29
indicates that both boot label and serial id is present. Other boot sign
values (e.g. zero) indicates older FAT16 variant without boot label and
boot sign.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>

mount: fix roothash signature extension in manpage

The PKCS7 RFC recommends to use .p7s for detached signatures file extensions,
so use that in the example.

https://datatracker.ietf.org/doc/html/rfc5751#section-3.2.1

meson: fix dlopen support for cryptsetup

dlopen is treated as a dependency, but that's not quite right, it
should be an alternative way to link to libcryptsetup.
Search for it only if cryptsetup is not disabled, and if the cryptsetup-dlopen
is explicitly set to enabled. If it is, do not link to libcryptsetup.

Add cryptsetup support status to the meson summary.

meson: fix crypt_activate_by_signed_key detection

It should set HAVE_CRYPT_ACTIVATE_BY_SIGNED_KEY, rather than HAVE_CRYPTSETUP
which enables the verity features, as it needs to detect the availability of
the crypt_activate_by_signed_key API

build-sys: display cryptsetup status after ./configure

Signed-off-by: Luca Boccassi <bluca@debian.org>

lscpu: don't use DMI if executed with --sysroot

Signed-off-by: Karel Zak <kzak@redhat.com>

test/eject: guard asan LD_PRELOAD with use-system-commands check

This test tries to add asan to LD_PRELOAD because the just-built eject
will call the host /bin/umount, and apparently asan doesn't like this.

However, if ldd isn't present, this fails as the path to asan is the
error message saying that ldd isn't present.

As the asan workaround is only needed when executing the binaries that
have just been built and not the system binaries, only use it if the
test is on the built binaries.

Closes #1373.

Signed-off-by: Ross Burton <ross.burton@arm.com>

fstrim: clean return code on --quiet-unsupported

This feature is already supported for -a and -A. Let's support it also
when FS specified on command line.

Addresses: https://github.com/systemd/mkosi/pull/721
Signed-off-by: Karel Zak <kzak@redhat.com>

lsblk: normalize space in SERIAL and MODEL

These strings come from HW and udev does not modify it. It seems good
idea to clean up it before we print it.

Fixes: https://github.com/karelzak/util-linux/issues/1368
Signed-off-by: Karel Zak <kzak@redhat.com>

tests: mark ul/ul as a known failure

As with ul/basic, this test produces different output when ran under
different terminals, which isn't very useful.

Set TS_KNOWN_FAIL so that these problems don't cause the test to fail.

Signed-off-by: Ross Burton <ross.burton@arm.com>

tests: check correct log file for errors in blkdiscard test

When checking if the discard ioctl is supported, look in stderr not stdout as
that is where the error appears.

Signed-off-by: Ross Burton <ross.burton@arm.com>

tests: don't hardcode /bin/kill in the kill tests

If the 'kill' test is executed with --use-system-commands, it calls
/bin/kill to avoid the shell's own kill command being invoked.

However, this doesn't work if the kill we want to test isn't in fact in
/bin.  Instead, use $(which kill) to find a kill on the PATH and call
that directly.

Signed-off-by: Ross Burton <ross.burton@arm.com>

cfdisk: optimize mountpoint detection for PARTUUID

Don't check fstab (and udev symplinks) for new UUIDs.

Fixes: https://github.com/karelzak/util-linux/issues/1331
Signed-off-by: Karel Zak <kzak@redhat.com>

hexdump: do not use atoi()

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

pg: do not use atoi()

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

misc: improve string to number conversions

Signed-off-by: Karel Zak <kzak@redhat.com>

include/strutils: consolidate string to number conversion

Signed-off-by: Karel Zak <kzak@redhat.com>

more: fix null-pointer dereference

The command allows executing arbitrary shell commands while viewing a file by
entering '!' followed by the command. Entering a command that contains a '%',
'!', or '\' causes a segmentation violation.

The same more(1) function has a problem when not file is specified (cat
/etc/passwd | more) on command line.

Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1975153
Signed-off-by: Karel Zak <kzak@redhat.com>

agetty: do not use atol()

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

lscpu: do not use atoi()

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

utmpdump: do not use atoi()

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

swapon: do not use atoi()

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

ipcs: do not use atoi()

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

eject: do not use atoi()

* remove unnecessary strtok() use
* remove atoi use()

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

fsck: do not use atoi()

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

include/strutils: cleanup strto..() functions

* add ul_strtos64() and ul_strtou64()
* add simple test

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

blockdev: improve arguments parsing (remove atoi)

old version:
 # blockdev --setfra 4x096 /dev/sdc

new version:
 # blockdev --setfra 4x096 /dev/sdc
 blockdev: failed to parse command argument: '4x096'

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

cfdisk: do not use atoi()

It's unnecessary to use atoi in this case.

Addresses: https://github.com/karelzak/util-linux/issues/1358
Signed-off-by: Karel Zak <kzak@redhat.com>

readprofile: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

wipefs: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

lslocks: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

kill: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

lslogins: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

fsck: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

lsmem: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

lscpu: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

hwclock: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

ipcs: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

libuuid: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

libmount: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

libblkid: check errno after strto..()

Addresses: https://github.com/karelzak/util-linux/issues/1356
Signed-off-by: Karel Zak <kzak@redhat.com>

mount.8.adoc: Remove context options exclusion

The exclusivity between the {fscontext, defcontext} and context options
was removed in kernel 2.6.25[1]. No specific verification on these
options is done in mount(8)[2].

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9180a57a9ab2d5525faf8815a332364ee9e89b7
[2] https://github.com/karelzak/util-linux/blob/master/libmount/src/context_mount.c#L202

fsck.cramfs: use open+fstat rather than stat+open

Fixes: https://github.com/karelzak/util-linux/issues/1353
Signed-off-by: Karel Zak <kzak@redhat.com>

include/c: add drop_permissions(), consolidate UID/GID reset

Fixes: https://github.com/karelzak/util-linux/issues/1354
Signed-off-by: Karel Zak <kzak@redhat.com>

dmesg: remove  condition [lgtm scan]

Signed-off-by: Karel Zak <kzak@redhat.com>

tools: report and use LDFLAGS in tools/config-gen

Signed-off-by: Karel Zak <kzak@redhat.com>

build-sys: use $LIBS rather than LDFLAGS

Fixes: https://github.com/karelzak/util-linux/pull/1349
Signed-off-by: Karel Zak <kzak@redhat.com>

lib/path: (test) fix ul_new_path() use

more: add __format__ attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

wall: add __format__ attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

script: add __format__ attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

ldattach: add __format__ attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

hwclock: fix ul_path_scanf() use

Signed-off-by: Karel Zak <kzak@redhat.com>

eject: add __format__ attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

logger: add __format__ attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

libfdisk: add and fix __format__ attributes

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

findmnt: add __format__ attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

libmount: add __format__ attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

include/strutils: fix __format__attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

include/path: add __format__attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

include/c: add __format__ attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

tests: fix lsns test on kernels without USER namespaces

Reported-by: Bruce Dubbs <bruce.dubbs@gmail.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

mount.8: fix overlayfs nfs_export= indention

Signed-off-by: Karel Zak <kzak@redhat.com>

include/strv: fix format attributes

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

Fix some brackets in synopses

mount: man-page; add all overlayfs options

The section in man (8) mount for overlay is missing nine options which
aren't documented elsewhere either and are useful features to be aware
of and use.

Fixes #1350.

build-sys: Update configure.ac

1. the test incorrectly used AC_COMPILE_IFELSE instead of
   AC_LINK_IFELSE, defeating the purpose of checking -lcrypt.
2. the test did not properly restore LIBS, causing later checks to all
   fail if libcrypt wasn't found.
3. HAVE_LIBCRYPT only controls whether to use -lcrypt, it is not
   needed or used in any source files.

[kzak@redhat.com: - improve commit message
                  - use UL_{SET,RESTORE}_FLAGS() rather than directly
    modify $LIBS]

Signed-off-by: Karel Zak <kzak@redhat.com>

lib/path: improve ul_path_readlink() to be more robust

According to POSIX, readlink() makes no effort to null-terminate buffer
with the result. It seems better to hide this disadvantage in the
ul_path_...() API rather than assume buf[sz] = '\0' everywhere.

Reported-by: Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

mkfs.cramfs: add comment to explain readlink() use

Signed-off-by: Karel Zak <kzak@redhat.com>

rename: use readlink() in more robust way

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

namei: simplify code

Signed-off-by: Karel Zak <kzak@redhat.com>

more: fix setuid/setgid order

The rule is pretty simple, always use setgid() before setuid().

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

sulogin: add missing ifdefs

Signed-off-by: Karel Zak <kzak@redhat.com>

sulogin: use explicit_bzero() for buffer with password

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

login: remove obsolete and confusing comment

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

mkswap: fix holes detection (infinite loop and/or stack-buffer-underflow)

Reported-by: Brian Lane <bcl@redhat.com>
Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1971877
Fix: https://github.com/karelzak/util-linux/issues/1348
Signed-off-by: Karel Zak <kzak@redhat.com>

lib/loopdev: perform retry on EAGAIN

Suggested-by: Ingo Franzki <ifranzki@linux.ibm.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

mount.8.adoc: document SELinux use of nosuid mount flag

Using mount flag `nosuid` also affects SELinux domain transitions but
this has not been documented well.

Signed-off-by: Topi Miettinen <toiwoton@gmail.com>

dmesg: fix indentation in man page

Double-semicolon at the end of the option line results in description
being indented extra tab to the right. Replacing them with double-colons
allows all options to be displayed at the same indent level.

lib/path: fix possible leak when use ul_path_read_string() [coverity scan]

Signed-off-by: Karel Zak <kzak@redhat.com>

hwclock: close adjtime on write error [coverity scan]

Signed-off-by: Karel Zak <kzak@redhat.com>

newgrp: fix memory leak [coverity scan]

Signed-off-by: Karel Zak <kzak@redhat.com>

dmesg: fix possible memory leak [coverity scan]

Signed-off-by: Karel Zak <kzak@redhat.com>

findmnt: (verify) fix memory leak [asan]

Signed-off-by: Karel Zak <kzak@redhat.com>

findmnt: (verify) fix cache related memory leaks on --nocanonicalize [coverity scan]

Signed-off-by: Karel Zak <kzak@redhat.com>

libblkid: Add hyphens to UUID string representation in Stratis superblock parsing

[kzak@redhat.com: - small code cleanup]

Signed-off-by: Karel Zak <kzak@redhat.com>

hexdump: correctly display signed single byte integers

When using the format string '/1 "%d"', the byte did not display as a
signed integer as expected, it was interpreted as unsigned.

lsblk: fix formatting in -e option

uclampset: Fix left over optind++

The code was changed to use ':' in getopt_long() but these were left
over by mistake causing weird random errors when using these options
depending on the order they were fed.

Signed-off-by: Qais Yousef <qais.yousef@arm.com>

rfkill: Set scols table name to make the json output valid

[kzak@redhat.com: - s/rfkill/rfkilldevices/]

Fixes: https://github.com/karelzak/util-linux/issues/1339
Signed-off-by: Nicolai Dagestad <nicolai@dagestad.fr>
Signed-off-by: Karel Zak <kzak@redhat.com>

libsmartcols: fix bare array on JSON output

The bare array ({[...]}) for top level list of entries is invalid. It
seems better to print empty string than nothing. This is workaround
for broken utils, better is to define a table name.

Addresses: https://github.com/karelzak/util-linux/issues/1339
Signed-off-by: Karel Zak <kzak@redhat.com>

build-sys: make re-use of generated man-pages more robust

We need to ignore man-pages at all if not available (not generated
yet), but asciidoctor is not installed.

Fix: https://github.com/karelzak/util-linux/issues/1334
Signed-off-by: Karel Zak <kzak@redhat.com>

build-sys: add generated man-pages to distribution tarball

Signed-off-by: Karel Zak <kzak@redhat.com>

lscpu: fix build on powerpc

fails with error: label at end of compound statement
and fix typo as bonus.

Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org>

lsblk: use ID_MODEL_ENC is possible

Fix: https://github.com/karelzak/util-linux/issues/1098
Signed-off-by: Karel Zak <kzak@redhat.com>

include/strutils: fix heap-buffer-overflow in normalize_whitespace()

Signed-off-by: Karel Zak <kzak@redhat.com>

build-sys: fix {release-version} man pages

* define {release-version} as $VERSION

* do not use {docdir} in adoc; it's built-in ascidoctor variable
  https://docs.asciidoctor.org/asciidoc/latest/attributes/document-attributes-reference/#intrinsic-attributes

Addresses: https://github.com/karelzak/util-linux/issues/1327
Signed-off-by: Karel Zak <kzak@redhat.com>

build-sys: install hardlink bash-completion

Signed-off-by: Karel Zak <kzak@redhat.com>

docs: fix typo in v2.37-ReleaseNotes

Signed-off-by: Karel Zak <kzak@redhat.com>