Earlier the owner of a process was determined by owner of the
/proc/<pid>/stat file. When changes user ID privileges with setuid() the
stat file ownership is not updated, that resulted kill(1) to consider
such processes where running using same uid as the present process.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
When going through /proc the last entry made readdir() to alter errno,
which made the strtol() to think something went wrong, resulting kill(1)
tests to fail when running in --parallel mode.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
The mcookie should reuse existing code, and there is definitely no need
to prefer /dev/random for this utility. See reference for explanation
about later statement.
References: http://www.2uo.de/myths-about-urandom/
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Note that open_memstream() is POSIX-1.2008, so it's possible than not
all libc have already implemented this function.
Signed-off-by: Karel Zak <kzak@redhat.com>
[kzak@redhat.com: - move paths to pathnames.h,
- use static path buffer]
Signed-off-by: Ondrej Oprala <ooprala@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
On system with /dev/lop-control the udevd creates /dev/loopN nodes.
It seems better to wait a moment after unsuccessful open(/dev/loopN)
and try it to open again.
The problem is pretty visible on systems where udevd also modifies
permission for loopN devices, then open() fails with EACCES when
losetup executed by non-root user (but user who is in "disk" group).
Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1045432
Signed-off-by: Karel Zak <kzak@redhat.com>
Kernel aligns the device size, but the offset where the device starts
is not required to be aligned.
# losetup --offset 32 -f file.img
is just fine, the final size of the look device will be (in sectors)
(backing_file_size - offset) >> 9
so we have to do the same in userspace when we check for successful
set capacity ioctl.
Signed-off-by: Karel Zak <kzak@redhat.com>
Even while the YYYYMMDDHHMMSS time format it not magnificent it is best
to make it to be part of the one, and only, time format parser.
Proposed-by: Karel Zak <kzak@redhat.com>
References: http://markmail.org/message/6baqt4ttkopu7ra6
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Avoid code dublication in libmount and time-util.
Proposed-by: Karel Zak <kzak@redhat.com>
Reference: http://markmail.org/message/h7zexvqsieqngtmx
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
The functions are copied nearly as-is. Coding style has been modified to
match with util-linux project, while the functionality remains untouched.
CC: Lennart Poettering <lennart@poettering.net>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Now we use LOOP_CTL_GET_FREE ioctl to ask for free device, for example
losetup -f foo.img
Unfortunately, losetup(8) allows to ask for specified device
losetup /dev/loop100 foo.img
and in this case we assume that the device already exists in the
system. This is incorrect, we should be able to use loop-control
LOOP_CTL_ADD ioctl to ask for the specified device.
Signed-off-by: Karel Zak <kzak@redhat.com>
.. after many many years it seems that we can follow libc code rather
than duplicate realpath(3) implementation.
Signed-off-by: Karel Zak <kzak@redhat.com>
When this file was created, the standard license header was missed.
Add it using the same one from unshare.c.
The noreturn attribute is not needed since we include the header
which has it on the prototype.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* lib/canonicalize.c: don't interpret empty strings as relative paths
* libmount: more robust libmnt_table find function and debug messages
References: https://bugzilla.novell.com/show_bug.cgi?id=825150
Signed-off-by: Karel Zak <kzak@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
The loopcxt_check_size() is workaround for kernels < v3.9, kernel has
been fixed by commit 541c742a7559eb65f0e36d3e2338c2ca532a3e61.
The function sets loopdev size according to backing file size. The
problem is that the backing file could be a block device where
stat.st_size is zero, so we have to use blkdev_get_size() for block
devices.
Addresses: https://bugs.archlinux.org/task/35193
Reported-by: Dave Reisner <d@falconindy.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
Sami Kerola
Karel Zak
Ondrej Oprala
Benno Schulenberg
Mike Frysinger