*** gnats/ChangeLog	Fri Dec 12 13:18:39 1997
--- gnats/ChangeLog	Fri Dec 12 13:19:07 1997
***************
*** 1,3 ****
--- 1,9 ----
+ Sun Dec  7 20:33:20 1997  Karl Fogel  <kfogel@floss.red-bean.com>
+ 
+     	* file-pr.c (check_if_reply): don't file if category in Subject
+         header is not a valid category (this helps prevent spurious
+         matches, for example "Re: OS/2 release").
+ 
  Fri Dec  5 13:43:20 1997  Karl Fogel  <kfogel@floss.red-bean.com>
  
  	* files.c (free_responsible): if `alias' lives in borrowed space

*** gnats/file-pr.c	Fri Dec 12 13:14:02 1997
--- gnats/file-pr.c	Fri Dec 12 13:19:08 1997
***************
*** 374,383 ****
    char token[STR_MAX];
    char *path;
    struct stat buf;
!   char *s, *c;
    struct re_pattern_buffer regex;
    struct re_registers regs;
!   int i, start, end;
    char *case_fold;
  
    s = header_value (SUBJECT);
--- 374,384 ----
    char token[STR_MAX];
    char *path;
    struct stat buf;
!   Category cat;
!   char *s, *c, *cat_name;
    struct re_pattern_buffer regex;
    struct re_registers regs;
!   int i, start, end, res;
    char *case_fold;
  
    s = header_value (SUBJECT);
***************
*** 416,422 ****
  
    c = strchr (s + start, '/');
    if (c)
!     path = get_category (c + 1);
    else
      {
        path = xmalloc (PATH_MAX);
--- 417,451 ----
  
    c = strchr (s + start, '/');
    if (c)
!     {
!       /* The category's name is what comes before the '/'. */
!       cat_name  = s + start;
! 
!       /* Terminate it temporarily: */
!       *c = '\0';
! 
!       /* Void cat just in case free_category() expects NULLs. */
!       memset ((void *) &cat, 0, sizeof (Category));
! 
!       /* See if the category exists: */
!       res = find_category (&cat, cat_name);
! 
!       /* Undo temporary terminator: */
!       *c = '/';
! 
!       /* If no such category, then this is not a reply to a valid
!        * problem report.  This situtation can arise, for example, when
!        * someone has the string "OS/2" in their Subject header.
!        */
!       if (res == -1)
!         return NULL;
!       else
!         {
!           /* We only needed res, never cat, so free cat. */
!           free_category (&cat);
!           path = get_category (c + 1);
!         }
!     }
    else
      {
        path = xmalloc (PATH_MAX);