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Via coccinelle (not the handbag!)
spatches used:
@ rule1 @
identifier a, b;
symbol NULL;
@@
- b = a;
... when != a
- a = NULL;
+ b = g_steal_pointer(&a);
@@
- *b = a;
... when != a
- a = NULL;
+ *b = g_steal_pointer(&a);
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Found by clang-tidy's "clang-analyzer-optin.portability.UnixAPI" check.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Fixes a buffer overflow triggered when more than three "--readfd"
arguments were given on the command line.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Fixes a buffer overflow triggered when more than three "--readfd"
arguments were given on the command line.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Preparation for later conversion to g_auto* memory handling.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This saves two invocations of each `strndup` and `free`.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
commandhelper hangs indefinitely in poll() on macOS on commandtest test2
and later because POLLNVAL is returned on revents for input file
descriptor opened from /dev/null, i.e this hangs:
$ tests/commandhelper < /dev/null
BEGIN STDOUT
BEGIN STDERR
^C
But it works fine with regular stdin:
$ tests/commandhelper <<< test
BEGIN STDOUT
BEGIN STDERR
test
test
END STDOUT
END STDERR
The issue is mentioned in poll(2):
BUGS
The poll() system call currently does not support devices.
With the change all 28 cases in commandtest pass.
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
There is currently a hang in test27 that exhibits itself on FreeBSD 11.4
only. The behaviour is that virCommandProcessIO gets POLLIN on the
FD for stdout, but read() blocks. Meanwhile commandtest also blocks
in write for stderr because the pipe buffers are full.
This fix in commandhelper likely does not really address the root cause
just hides it due to the buffering done by FILE *. Mixing UNIX FD I/O
and FILE * I/O is bad practice regardless.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The 'commandhelper' checks effectively whether the parent process is
still around to report whether it was daemonized or not.
This creates a unlikely race condition in cases when we do actually
daemonize the process as the intermediate process used for the
daemonization might not have terminated yet which would report wrong
result leading to test failure.
For now there's just 'test4' which actually daemonizes the process.
Add an argument '--check-daemonize' which asks for retries of the
daemonization check in cases where we expect that the commandhelper is
going to be daemonized and use it in 'test4' to make the test more
reliable.
I've observed the test failure sporadically when my box is under load
e.g. while building two trees at once.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The old code works correctly with make and running directly from shell
but it failed with Meson test suite where session ID and process group
are the same in both cases.
What changes in both cases is parent process ID so use that instead of
session ID.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The virFilePrintf function was a wrapper for fprintf() to provide
Windows portability, since gnulib's fprintf() replacement was
license restricted. This is no longer needed now we have the
g_fprintf function available.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Remove imports of poll.h which are redundant, and
conditionalize remaining usage that needs to compile
on Windows platforms.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Some UNIX platforms don't declare 'environ' in their
header files. We can unconditionally declare it ourselves
to avoid this problem.
There is no need to do this in the aa-helper code
since that is Linux only code.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
/tmp is a symbolic link to /private/tmp on macOS. That causes failures
in commandtest, because getcwd returns /private/tmp and the expected
output doesn't match to "CWD: /tmp".
Rathern than making a copy of commanddata solely for macOS, the /private
prefix is stripped.
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Add a test case to commandtest.c to test the transfer of data to a
process who received the read-end of pipes' file descriptors. Transfer
large (128 kb) byte streams.
Extend the commandhelper.c with support for --readfd <fd> command line
parameter and convert the data receive loop to use poll and receive data
on multiple file descriptors (up to 3) and read data into distinct buffers
that we grow while adding more (string) data.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
All of the ones being removed are pulled in by internal.h. The only
exception is sanlock which expects the application to include <stdint.h>
before sanlock's headers, because sanlock prototypes use fixed width
int, but they don't include stdint.h themselves, so we have to leave
that one in place.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
It doesn't really make sense for us to have stdlib.h and string.h but
not stdio.h in the internal.h header.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
If @log is not fopen'd then, going to cleanup and calling fclose
will make for an unhappy callee. So just fail immediately instead
since there's nothing to clean up.
Found by Coverity
Signed-off-by: John Ferlan <jferlan@redhat.com>
For win32 we need EXIT_AM_SKIP which is in testutils.h. We must
define NO_LIBVIRT to prevent replacement of fprintf with
virFilePrintf as we can't link to libvirt_util.la
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The commandhelper binary is a helper for commandtest that
validates what file handles were inherited. For this to
work reliably we must not have any libraries that leak
file descriptors into commandhelper. Unfortunately some
versions of gnutls will intentionally open file handles
at library load time via a constructor function.
We previously hacked around this in
commit 4cbc15d037
Author: Martin Kletzander <mkletzan@redhat.com>
Date: Fri May 2 09:55:52 2014 +0200
tests: don't fail with newer gnutls
gnutls-3.3.0 and newer leaves 2 FDs open in order to be backwards
compatible when it comes to chrooted binaries [1]. Linking
commandhelper with gnutls then leaves these two FDs open and
commandtest fails thanks to that. This patch does not link
commandhelper with libvirt.la, but rather only the utilities making
the test pass.
Based on suggestion from Daniel [2].
[1] http://lists.gnutls.org/pipermail/gnutls-help/2014-April/003429.html
[2] https://www.redhat.com/archives/libvir-list/2014-April/msg01119.html
That fix relied on fact that while libvirt.so linked with
gnutls, libvirt_util.la did not link to it. With the
introduction of the util/vircrypto.c file that assumption
is no longer valid. We must not link to libvirt_util.la
at all - only gnulib and libc can (hopefully) be relied
on not to open random file descriptors in constructors.
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Coverity determined that 'log' and 'newenv' were not freed in
some cases. Free them in 'error' branch and normal branch.
Signed-off-by: Wang Rui <moon.wangrui@huawei.com>
Recent changes uncovered a NEGATIVE_RETURNS in the return from sysconf()
when processing a for loop in virtTestCaptureProgramExecChild() in
testutils.c
Code review uncovered 3 other code paths with the same condition that
weren't found by Covirity, so fixed those as well.
Convert the type of loop iterators named 'i', 'j', k',
'ii', 'jj', 'kk', to be 'size_t' instead of 'int' or
'unsigned int', also santizing 'ii', 'jj', 'kk' to use
the normal 'i', 'j', 'k' naming
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
