| Commit message (Collapse) | Author | Age | Files | Lines |
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Turned out lsblk is passing null as argument to xstrdup(), so fix that and
add assert() to make sure promise of not returning null is kept in future.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
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The device can be inaccessible for non-root user or busy (already used
by another process). In this case it seems better to read information
from /sys.
Note that /sys does not provide struct watchdog_info.options, so we
cannot print list of supported watchdog features.
Addresses: https://github.com/karelzak/util-linux/issues/804
Signed-off-by: Karel Zak <kzak@redhat.com>
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Let's use miscdev /dev/watchdog as fallback only. We need (if possible)
cdev /dev/watchdog0 as this device has entry in /sys/class/watchdog.
Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Let's use separate function to detect what is the current terminal.
Signed-off-by: Karel Zak <kzak@redhat.com>
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Let's keep compilers and static analyzers happy. The idea is to use
memcpy() to copy from buffer to variable and use all label as unsigned
char rather than vectorize by uint32_t.
Signed-off-by: Karel Zak <kzak@redhat.com>
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The __has macros are more portable (supported by gcc as well as
clang).
The old __GNUC_PREREQ is deprecated and it should be removed in
future. (Well, the __has macros are supported since gcc 5, so we
should be patient as some old stable distros (e.g. RHEL 7) use gcc
4.x).
This patch helps clang to correctly analyze our xalloc.h stuff.
Signed-off-by: Karel Zak <kzak@redhat.com>
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Recent lscpu fix caused gcc -Wnull-dereference to go off that this change
addresses.
Reference: b94acada9ed0e11a7e82f8f60280c5b6058e4250
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
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From the test input string ':' characters are removed:
cat x86_64-epyc_7451/sys/devices/system/cpu/vulnerabilities/spectre_v2
Mitigation: Full AMD retpoline, IBPB: conditional, STIBP: disabled, RSB filling
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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It seems better to have a way to control when atexit(close_stdout()) is
used, because close stdout means that for example ASAN (or another
into binary integrated tool) is not able to print the final summary.
Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Remove duplicate code and keep only one implementation in
include/fileutils.h.
Signed-off-by: Karel Zak <kzak@redhat.com>
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Addresses: https://github.com/karelzak/util-linux/issues/780
Signed-off-by: Karel Zak <kzak@redhat.com>
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Addresses: https://github.com/karelzak/util-linux/issues/780
Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Sami Kerola <kerolasa@iki.fi>
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This warning is repeated 112 times when compiling with all warnings.
xalloc.h:23:1: warning: function '__err_oom' could be declared with
attribute 'noreturn' [-Wmissing-noreturn]
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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The partition scanner in kernel depends on blocksize. We need to set
the blocksize before we call LOOP_SET_STATUS64 (this ioctl triggers
the scanner).
This patch extends the internal API to save blocksize into loopdev
context to be usable later for loopcxt_setup_device().
Signed-off-by: Karel Zak <kzak@redhat.com>
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Now the internal API uses loopcxt_set_...() to set context variables
as well as to call ioctls. This patch introduces loopcxt_ioctl_...()
to makes things more obvious to readers.
Signed-off-by: Karel Zak <kzak@redhat.com>
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Avoid repeated ifdef checks in code by adding a project specific
preprocessor definition.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
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Assumption all years since 1970 have been exactly 365 days long has it's
problems when leap years happen. Lets use struct tm fields that are
provided by localtime_r(), making year and day to be correctly compared even
when it's late new years eve somewhere else than UTC-0.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
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It's really bad idea to use uint64_t (ul_path_write_u64(()) when write
signed number.
Addresses: https://github.com/karelzak/util-linux/issues/723
Signed-off-by: Karel Zak <kzak@redhat.com>
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* '2018wk48' of https://github.com/kerolasa/util-linux:
include/c: check returns_nonnull function attribute with __GNUC_PREREQ
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Karel pointed out previous commit could have been better in github feedback,
so lets use the version check macro instead of compare versions directly.
Previous-commit: f1b327f8d5c8de7bf7fae99e85765d0954a25bac
Reference: https://github.com/karelzak/util-linux/pull/704#issuecomment-432605211
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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* add struct ul_timer as API abstraction to hide differences between
timer_create() and setitimer()
* add setitimer() detection to ./configure.ac
* add fallback code to use setitimer() if timer_create() not available
(for example on OSX)
Addresses: https://github.com/karelzak/util-linux/issues/584
Signed-off-by: Karel Zak <kzak@redhat.com>
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This reverts parts of commit eb06d5d4, which seems to be based on
Linux kernel commit c7acec71. Unlike the original kernel patch we did
not add that even stronger type checking by using macro BUILD_BUG_ON_MSG.
So basically we removed a useful warning when compiling such
broken code:
struct st {
int a;
char b;
};
struct st t = { .a = 1, .b = 2 };
struct st *x = container_of(&t.a, struct st, b);
printf("%p %p\n", (void *)&t, (void *)x);
Moreover we also introduced a new compiler warning for intel/icc:
"arithmetic on pointer to void or function type"
Let's just revert the update of container_of() because adding a
kernel-like BUILD_BUG_ON_MSG would be too much noise and also
problematic (see kernel commit c03567a8). Also note that the original
problem addressed by the kernel commit seems to be only reproducible
with gcc 4.9, not with any later gcc nor clang,icc. Moreover, currently
we have no such use-case in the UL sources anyways.
Signed-off-by: Ruediger Meier <ruediger.meier@ga-group.nl>
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Let the compiler optimize based on the knowledge that the return value will
never be null.
Reference: https://patchwork.ozlabs.org/patch/281112/#631159
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
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Some systems do not have the shutdown command. Use poweroff as an
alternative.
Signed-off-by: Justin Chen <justinpopo6@gmail.com>
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str2memcpy() - copy zero terminated string to optionally terminated buffer
mem2strcpy() - copy from buffer to zero terminated string
Signed-off-by: Karel Zak <kzak@redhat.com>
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Upstreamed from pkgsrc.
Addresses: https://github.com/karelzak/util-linux/pull/695
Signed-off-by: Karel Zak <kzak@redhat.com>
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Upstreamed from pkgsrc.
Addresses: https://github.com/karelzak/util-linux/pull/695
Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Use several locations for built in default for motd to allow for
e.g. run time generated motd without having to modify config files.
login.c already splits by colon.
/usr/share/misc/motd
- chould be shipped by distributions
/run/motd
- potentially run time created file with dynamic information
/etc/motd
- for the admin fill with local information
Signed-off-by: Ludwig Nussel <ludwig.nussel@suse.de>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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* update container_of() to version without "const" qualifier
* use container_of() in list_entry()
Signed-off-by: Karel Zak <kzak@redhat.com>
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* use "const" in functions where we don't modify arguments
* use "const" when cast from const buffer to any struct (superblock etc.)
Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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