Re: Another 5.2 todo

Kris Kennaway wrote:
> libm has been fixed, but there are several other libraries that either
> need to get the same treatment or have their major version number
> bumped.
> 
> See the attached mail.
> 
> Kris
> 

Robert has offered to take care of libutil.  We need someone to help
figure out the right approach for libncp and libopie.  I'm tempted to
just bump their versions, but I'll wait for better wizdom from the
community first.  Can anyone comment here?

> 
> ------------------------------------------------------------------------
> 
> I audited the results of my comparison script to look for other cases
> of symbols being added to 5.x versions of libraries that have the same
> version in 4.x, which do not resolve within this set of common
> libraries.  Here are the results:
> 
> ==> Comparing symbols in libisc.so.1
> * pselect 
> 
> Called from evGetNext(), which exists in 4.x's libisc.  Perhaps libisc
> is not widely used except for BIND applications.
> 
> ==> Comparing symbols in libm.so.2
> * __fpclassifyd 
> * __fpclassifyf 
> 
> Used in scalb() and scalf(), which exist on 4.x.
> 
> ==> Comparing symbols in libncp.so.1
> * _getprogname 
> 
> This is used in 5.x's ncp_getopt() and ncp_error() functions, which
> also exist on 4.x.
> 
> ==> Comparing symbols in libopie.so.2
> * __xuname 
> 
> This is hidded inside the static uname() implementation in
> <sys/utsname.h> and is referenced from opieinsecure() and
> opienewseed(), which exist on 4.x.
> 
> ==> Comparing symbols in libutil.so.3
> * __pw_scan 
> 
> This one is OK because it is only used from pw_scan(), which does not
> exist on 4.x.
> 
> * _time_to_time32 
> 
> This is called from logout() on 5.x, which is a function also used in
> 4.x's libutil.  For example, the following test application
> demonstrates the breakage:
> 
> #include <sys/types.h>
> #include <libutil.h>
> 
> main() {
>      logout("ttypa");
> }
> 
> It runs correctly as root on 4.x, but gives the following as root on 5.x:
> 
> root_at_rot13:/home/kkenn /tmp/a
> /usr/libexec/ld-elf.so.1: /usr/lib/libutil.so.3: Undefined symbol "_time_to_time32"
> 
> * mac_free 
> * mac_from_text 
> * mac_is_present 
> * mac_set_proc 
> 
> These are called from setusercontext(), and might cause runtime
> failures if a 4.x binary that uses setusercontext() is run on a 5.x
> system that has MAC enabled.
> 
> Kris