Index: winsup/cygwin/grp.cc
===================================================================
RCS file: /home/duda_admin/cvs-mirror/src/winsup/cygwin/grp.cc,v
retrieving revision 1.8
diff -c -2 -r1.8 grp.cc
*** winsup/cygwin/grp.cc	2000/08/22 05:10:20	1.8
--- winsup/cygwin/grp.cc	2000/08/29 08:59:07
***************
*** 16,23 ****
--- 16,25 ----
  #include <stdio.h>
  #include <stdlib.h>
+ #include <errno.h>
  #include "thread.h"
  #include "sync.h"
  #include "sigproc.h"
  #include "pinfo.h"
+ #include "cygerrno.h"
  
  /* Read /etc/group only once for better performance.  This is done
***************
*** 249,254 ****
            grouplist[cnt] = group_buf[i].gr_gid;
          ++cnt;
!         if (gidsetsize && cnt >= gidsetsize)
!           goto out;
        }
      else if (group_buf[i].gr_mem)
--- 251,256 ----
            grouplist[cnt] = group_buf[i].gr_gid;
          ++cnt;
!         if (gidsetsize && cnt > gidsetsize)
!           goto error;
        }
      else if (group_buf[i].gr_mem)
***************
*** 259,267 ****
                grouplist[cnt] = group_buf[i].gr_gid;
              ++cnt;
!             if (gidsetsize && cnt >= gidsetsize)
!               goto out;
            }
- out:
    return cnt;
  }
  
--- 261,272 ----
                grouplist[cnt] = group_buf[i].gr_gid;
              ++cnt;
!             if (gidsetsize && cnt > gidsetsize)
!               goto error;
            }
    return cnt;
+ 
+ error:
+   set_errno ( EINVAL );
+   return -1;
  }