This is guaranteed by ISO C. Now that we require ISO C (and even POSIX)
to compile, we can simplify this code.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
In variadic functions we still do the cast. In POSIX, it's not
necessary, since NULL is required to be of type 'void *', and 'void *'
is guaranteed to have the same alignment and representation as 'char *'.
However, since ISO C still doesn't mandate that, and moreover they're
doing dubious stuff by adding nullptr, let's be on the cautious side.
Also, C++ requires that NULL is _not_ 'void *', but either plain 0 or
some magic stuff.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
free(3) accepts NULL, since the oldest ISO C. I guess the
paranoid code was taking care of prehistoric implementations of
free(3). I've never known of an implementation that doesn't
conform to this, so let's simplify this.
Remove xfree(3), which was effectively an equivalent of free(3).
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Include <sys/types.h> before <pwd.h> and <grp.h>. It is necessary
for the definition of uid_t and gid_t.
* lib/pwmem.c: do not include <pwd.h>, "pwio.h" is sufficient
here.
Files with no license use the default 3-clauses BSD license. The copyright
were mostly not recorded; they were updated according to the Changelog.
"Julianne Frances Haugh and contributors" changed to "copyright holders
and contributors".
lib/sgetpwent.c: Include "prototypes.h" to make
sure the exported prototypes are the ones used for the definition
of functions.
* lib/prototypes.h: Added prototypes for __gr_del_entry(),
__gr_get_db(), __gr_get_head(), __gr_set_changed(), __gr_dup(),
__pw_del_entry(), __pw_get_db(), __pw_get_head(), __pw_dup(),
sgetgrent(), sgetpwent(), __sgr_del_entry(), __sgr_dup(),
__sgr_get_head(), __sgr_set_changed(), __spw_get_head(),
__spw_del_entry(), __spw_dup().
* lib/prototypes.h: Removed prototype for is_listed().
* lib/prototypes.h: Added name of the check_su_auth()'s parameters.
* lib/groupio.h: Removed prototypes for __gr_dup() and
__gr_set_changed().
* lib/sgroupio.c: Removed prototypes for putsgent(), sgetsgent(),
and __gr_get_db().
* lib/sgroupio.h: Removed prototypes for __sgr_dup() and
__sgr_set_changed().
* lib/shadowio.c: Removed prototype for __pw_get_db().
* lib/pwio.c: Removed prototype for sgetpwent() and putpwent().
* lib/shadowio.h: Removed prototypes for __spw_dup() and
__spw_set_changed().
* lib/pwio.h: Removed prototypes for __pw_dup() and
__pw_set_changed().
* lib/commonio.h: Add protection against multiple inclusions.
* lib/prototypes.h: Include commonio.h (needed for the
__xx_del_entry() functions).
