[csw-users] [osol-bugs] Problem with snv28 Japanese fonts?

[Alan Coopersmith]

Sun had to patch freetype to avoid crashing on some of our compressed
PCF fonts - I don't think the patch has gone back into freetype though.
(I haven't checked and the engineer who did the work no longer works
  here, so isn't available to ask if he sent it back.)

The Sun bug id (which is very sparse - I'll go fix that):
http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6229445

The patch is simply:
--- src/lzw/zopen.c     Tue Mar  1 13:54:50 2005
+++ src/lzw/zopen.c     Tue Mar  1 16:00:09 2005
@@ -355,7 +355,11 @@
                 }
                 roffset = 0;
                 /* Round size down to integral number of codes. */
-               size = (size << 3) - (n_bits - 1);
+                if(size) {
+                    size = (size << 3) - (n_bits - 1);
+                }else
+                    return -1;
+
         }
         r_off = roffset;
         bits = n_bits;

-- 
	-Alan Coopersmith-           alan.coopersmith at sun.com
	 Sun Microsystems, Inc. - X Window System Engineering


Eric Enright wrote:
> Some Blastwave programs don't seem to be able to grok the Japanese
> fonts very well anymore.  With a fresh install of snv28 on x86 from
> DVD, with a full package installation including Canadian English and
> Japanese locales, programs are segfaulting while trying access files
> under /usr/openwin/lib/locale/ja/X11/fonts/TTbitmaps.
> 
> from "truss /opt/csw/bin/gaim":
> ...
> xstat(2, "/usr/openwin/lib/locale/ja/X11/fonts/TTbitmaps//20om2132.pcf.Z",
> 0x08042D38) = 0
> open("/usr/openwin/lib/locale/ja/X11/fonts/TTbitmaps//24om212.pcf.Z",
> O_RDONLY) = 6
> fcntl(6, F_SETFD, 0x00000001)                   = 0
> fxstat(2, 6, 0x08042B4C)                        = 0
> mmap(0x00000000, 414820, PROT_READ, MAP_PRIVATE, 6, 0) = 0xD0A58000
> close(6)                                        = 0
>     Incurred fault #6, FLTBOUNDS  %pc = 0xD17D28B9
>       siginfo: SIGSEGV SEGV_MAPERR addr=0x083C7000
>     Received signal #11, SIGSEGV [caught]
>       siginfo: SIGSEGV SEGV_MAPERR addr=0x083C7000
> 
> 
> And while running "/opt/csw/bin/fc-cache -f -v":
> ...
> fc-cache: "/usr/openwin/lib/locale/iso_8859_9/X11/fonts/Type1//afm":
> caching, 0 fonts, 0 dirs
> fc-cache: "/usr/openwin/lib/locale/ja/X11/fonts/75dpi/": caching, 0
> fonts, 0 dirs
> fc-cache: "/usr/openwin/lib/locale/ja/X11/fonts/TT/": caching, 7 fonts, 0 dirs
> fc-cache: "/usr/openwin/lib/locale/ja/X11/fonts/TTbitmaps/":
> Segmentation fault (core dumped)
> 
> Sun's bundled versions of these programs do not exhibit this problem,
> and I have been able to reproduce this on two clean installations on
> two separate machines.  Renaming the fonts directory to something else
> to avoid the programs accessing those files solves things.
> 
> --
> Eric Enright
> _______________________________________________
> opensolaris-bugs mailing list
> opensolaris-bugs at www.opensolaris.org