ports/181292: dvipdfmx cannot long font name

[Takeo Tatsumi]

>Number:         181292
>Category:       ports
>Synopsis:       dvipdfmx cannot long font name
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Aug 14 14:10:01 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Takeo Tatsumi
>Release:        FreeBSD-9.1-RELEASE
>Organization:
Waseda University
>Environment:
FreeBSD tt.localdomain 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243826: Tue Dec  4 06:55:39 UTC 2012     root at obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
dvipdfmx-20110311 is unable to read large list of glyphs.
cf. http://oku.edu.mie-u.ac.jp/tex/mod/forum/discuss.php?d=917


>How-To-Repeat:
everytime.
>Fix:
To avoid this, use this patch file following.

----cut here----
--- ./work/dvipdfmx-20110311/src/tt_post.c.orig 2011-03-06 12:14:15.000000000 +0900
+++ ./work/dvipdfmx-20110311/src/tt_post.c      2013-07-14 12:55:46.000000000 +0900
@@ -42,2 +42,3 @@
   int    len;
+  int maxidx = 257;

@@ -51,7 +52,20 @@
     if (idx >= 258) {
+      if (idx > maxidx)
+       maxidx = idx;
       if (idx > 32767) {
-       WARN("TrueTypes post table name index %u > 32767", idx);
+       /* Although this is strictly speaking out of spec, it seems to work
+          and there are real-life fonts that use it.
+          We show a warning only once, instead of thousands of times */
+       static char warning_issued = 0;
+       if (!warning_issued) {
+         WARN("TrueTypes post table name index %u > 32767", idx);
+         warning_issued = 1;
+         }
+       /* In a real-life large font, (x)dvipdfmx crashes if we use
+          nonvanishing idx in the case of idx > 32767.
+          If we set idx = 0, (x)dvipdfmx works fine for the font and
+          created pdf seems fine. The post table may not be important
+          in such a case */
        idx = 0;
       }
-      post->count++;
     }
@@ -59,2 +73,3 @@
   }
+  post->count = maxidx - 257;
----cut here----

>Release-Note:
>Audit-Trail:
>Unformatted: