FORTIFY_SOURCE feature of libssp, thus checking the size of arguments to
various string and memory copy and set functions (as well as a few system
calls and other miscellany) where known at function entry. RedHat has
evidently built all "core system packages" with this option for some time.
This option should be used at the top of Makefiles (or Makefile.inc where
this is used for subdirectories) but after any setting of LIB.
This is only useful for userland code, and cannot be used in libc or in
any code which includes the libc internals, because it overrides certain
libc functions with macros. Some effort has been made to make USE_FORT=yes
work correctly for a full-system build by having the bsd.sys.mk logic
disable the feature where it should not be used (libc, libssp iteself,
the kernel) but no attempt has been made to build the entire system with
USE_FORT and doing so will doubtless expose numerous bugs and misfeatures.
Adjust the system build so that all programs and libraries that are setuid,
directly handle network data (including serial comm data), perform
authentication, or appear likely to have (or have a history of having)
data-driven bugs (e.g. file(1)) are built with USE_FORT=yes by default,
with the exception of libc, which cannot use USE_FORT and thus uses
only USE_SSP by default. Tested on i386 with no ill results; USE_FORT=no
per-directory or in a system build will disable if desired.
returned by pw_lock() before calling pw_mkdb().'' While there, also
close another open file descriptor that's no longer used.
Patch from Slava Semushin <slava.semushin@gmail.com>, tested by me.
We had a (long) discussion about this in #NetBSD-code and the consensus was
that /tmp should always be sticky (+t), and as such it is safe to create
the temporary files for chpass(1) in there. We added a check to guarantee
this (and bail out otherwise) and now temporary files are created in /tmp,
not filling up /etc.
Thanks to rivo nurges et al.
There's no use assigning the output of strtoul() to a 32-bit variable
then checking that against ULONG_MAX. Instead use a "unsigned long"
as the temporary variable. Also, only check against UID_MAX/GID_MAX;
these are both going to be smaller than ULONG_MAX on both 32- and 64-bit
platforms.
infrastructure and using that infrastructure in programs.
* MKHESIOD, MKKERBEROS, MKSKEY, and MKYP control building
of the infratsructure (libraries, support programs, etc.)
* USE_HESIOD, USE_KERBEROS, USE_SKEY, and USE_YP control
building of support for using the corresponding API
in various libraries/programs that can use it.
As discussed on tech-toolchain.
Remove local ypgetpw{uid,nam} which don't support secure maps.
(Using chpass/chfn with secure maps and these local functions turns off
users by putting * in password entry.)
If the user deletes a field while editing (as an easy way of making
that field empty) then "save" for that field will not get initialized
before referencing it when constructing the new GECOS field.
lukem