Please ignore my previous email. Here is the correct patchfile.

[Marcelle Gannon]

Sorry about the previous email.  This is the first time I have submitted
a patch and I am not yet too familiar with cvs.  This patch is to fix a
buffer overrun problem in files.c in the function get_class_enum_field()
which can cause a crash when the number of classes in the classes file
becomes too large.  Hope you find it useful.

--
Marcelle Gannon
Graduate Engineer
Redfern Broadband Networks
A member of the Redfern Photonics Pty Ltd group of companies

Lvl. 1,
1 Central Avenue,
Australian Technology Park,
Eveleigh NSW 1430
Australia

Tel: +61 (2) 9209 4860
Fax: +61 (2) 9209 4992
E-Mail: address@hidden

Index: files.c
===================================================================
RCS file: /cvs/gnats/gnats/gnats/Attic/files.c,v
retrieving revision 1.1.1.2.4.1
diff -u -p -r1.1.1.2.4.1 files.c
--- files.c     1999/09/21 23:18:39     1.1.1.2.4.1
+++ files.c     2001/02/08 04:26:03
@@ -533,12 +533,20 @@ get_class_type (class)
 }     
 
 /* get_class_enum_field - return a string of bar-separated classes */
+/* Modifications by Marcelle Gannon, 19/01/01 to fix up buffer overrun */
+/* problem to allow unlimited number of classes                    */
    
 char *
 get_class_enum_field ()
 {
   Classes *c;
-  char line[STR_MAX];
+  char *line, *trimline;
+  int totlen = 0;            /* count up the length of the string required 
first */
+  c = class_chain;
+  totlen += (strlen(c->key) + 1);         /* +1 for the \0  */
+  for (c = c->next; c; c = c->next)
+      totlen += (strlen(c->key) + 3);     /* +3 for the " | " characters */
+  line = xmalloc(totlen * sizeof(char)); 
   line[0] = '\0';
   c = class_chain;
   strcat (line, c->key);
@@ -547,7 +555,9 @@ get_class_enum_field ()
       strcat (line,  " | ");
       strcat (line, c->key);
     }
-  return (strdup (line));
+  trimline = strdup(line);    /* probably don't need to do this step, included 
as */
+  xfree(line);                 /* strdup was used in the previous version      
    */
+  return trimline;
 }
 
 /*  init_states - reads and parses the whole states file