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Thanks to Jelmer for spotting the static variable that causes this odd behaviour
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Mar 8 05:14:15 CET 2016 on sn-devel-144
This avoids the need for the caller to set tp_base and tp_basicsize and
so removes those as possible errors.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
The removal of the macros and replacement with proper functions
is a API, but not ABI break. Only code that incorrectly
used the structure either in function signatures or
to access the members directly will need to be modified
before being built against this version of talloc.
Andrew Bartlett
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This new object not only avoids the ABI issues of talloc.Object
it stores one more pointer, being the start of the array, and
so can be used to fix the PIDL bindings/talloc refcount issue.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This allows us to check which type is involved, and dereference
that type correctly
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
We now rely on waf to tell us where the helper binary is.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Compilers can't see that the child exits. Thus "exit_status" is
used uninitialized in the child.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Adrian Cochrane <adrianc@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Oct 9 23:15:06 CEST 2015 on sn-devel-104
The use of rand() is strongly discrouanged, but here is it ideal, as we just want to select a different
set of random bytes if we are called again within the same process.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Adrian Cochrane <adrianc@catalyst.net.nz>
Reviewed-by: Jeremy Allison <jra@samba.org>
By setting the talloc magic to a random value, we make it much harder to overwrite a talloc_chunk
in a valid way with a simple buffer overflow.
The flags are placed before more senstive variables so they have to be overwritten first.
Inspired by the exploit in: http://blog.csnc.ch/wp-content/uploads/2012/07/sambaexploit_v1.0.pdf
Andrew Bartlett
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Adrian Cochrane <adrianc@catalyst.net.nz>
Reviewed-by: Jeremy Allison <jra@samba.org>
This prevents code duplication to ensure the "extrapython" build
is the same as the normal one.
Signed-off-by: Petr Viktorin <pviktori@redhat.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jelmer Vernooij <jelmer@samba.org>
- Use native string for repr
- Use rich comparison
Removes the deprecated tp_compare in favor of tp_richcompare.
Disparate types cannot be compared (except for == and !=),
and True or False objects are returned explicitly.
- Use Py_TYPE instead of ob_type
This changed to conform to C aliasing rules,
see http://legacy.python.org/dev/peps/pep-3123/
- Don't provide CObject creation function
A PyCapsule based replacement would be possible,
but might not be necessary considering the function is
not used much.
- Use new-style module initialization
Build changes:
- Use ABI flag in the lib name and pkg-config template
- Use the SAMBA_CHECK_PYTHON macro for finding Python
Signed-off-by: Petr Viktorin <pviktori@redhat.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jelmer Vernooij <jelmer@samba.org>
This file was also still incorrectly licensed under the GPLv3.
Signed-off-by: Jelmer Vernooij <jelmer@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Add tests for pytalloc.
Since talloc objects can't be created from Python, a C extension
with helpers is added.
Signed-off-by: Petr Viktorin <pviktori@redhat.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jelmer Vernooij <jelmer@samba.org>
When fed Python objects of different types, pytalloc_default_cmp
compared pointers to PyType objects that weren't part of an array,
resulting in undefined behavior.
This makes things a bit better (though it still casts ptrdiff_t to int).
Signed-off-by: Petr Viktorin <pviktori@redhat.com>
Reviewed-By: Jelmer Vernooij <jelmer@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
This causes the talloc.3 build to be reproducible. We're trying to
make all builds in Debian reproducible - see
https://wiki.debian.org/ReproducibleBuilds/About for reasoning.
Change-Id: I9bd64d1783abfb33211cbc9dc9c2bbf6db047f3e
Signed-Off-By: Jelmer Vernooij <jelmer@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Sun Apr 19 03:05:53 CEST 2015 on sn-devel-104
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Simo <simo@samba.org>
Reviewed-by: "Stefan (metze) Metzmacher" <metze@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Mar 17 19:23:29 CET 2015 on sn-devel-104
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ira Cooper <ira@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sun Mar 8 20:52:43 CET 2015 on sn-devel-104
If a destructor returns failure (-1) when freeing a child, talloc
must then reparent the child.
Firstly it tries the owner of any reference, next the parent of the
current object calling _talloc_free_children_internal(), and finally
the null context in the last resort.
If a destructor reparented its own object, which can be a very
desirable thing to do (a destructor can make a decision it isn't
time to die yet, and as the parent may be going away it might
want to move itself to longer-term storage) then this new parent
gets overwritten by the existing reparenting logic.
This patch checks when freeing a child if it already reparented
itself, and if it did doesn't then overwrite the new parent.
Makes destructors more flexible.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ira Cooper <ira@samba.org>
If the destructor itself calls talloc_set_destructor()
and returns -1, the new destructor set is overwritten
by talloc.
Dectect that and leave the new destructor in place.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ira Cooper <ira@samba.org>
Changes:
- documentation updates
- a fix for pytalloc-util.pc
- performance improvements here and there
- fixed compiler warnings
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri May 16 19:51:26 CEST 2014 on sn-devel-104
This avoids the following warning when using:
CFLAGS="-O3 -g -fstrict-overflow -Wstrict-overflow=5"
../talloc.c: In Funktion »talloc_is_parent«:
../talloc.c:2658:21: Warnung: assuming signed overflow does not occur when
changing X +- C1 cmp C2 to X cmp C1 +- C2 [-Wstrict-overflow]
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
vsnprintf is significantly more expensive than memcpy. For the
common case where the string we print is less than a kilobyte, avoid
the second vsnprintf.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu May 15 12:49:14 CEST 2014 on sn-devel-104
After exapnding, @LIB_RPATH@ will be -Wl,-rpatch,/usr/local/lib if rpath is
used on install. But "-Wl," will be passed to linker and should not be among
CFLAGS. Other pkgconfig files have @LIB_RPATH@ in the right place.
@see commit 735c1cd2da15167748e92ba6de48fdb5169db587
Signed-off-by: Lukas Slebodnik <lslebodn@redhat.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Apr 4 23:50:25 CEST 2014 on sn-devel-104
