>Number:         26732
>Category:       bin
>Synopsis:       patch(1) does not work with '-F0' in current
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Aug 22 16:45:01 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator:     Yasushi Oshima
>Release:        NetBSD-current 2004-8-17
>Organization:
>Environment:
NetBSD x68030 2.0G NetBSD 2.0G (GENERIC) #1: Fri Aug 17 12:57:42 JST 2004  
>Description:
patch(1) does not work with '-F0' or '-p0' flags.

% patch -F0
patch: unrecognized option `-F0'
Usage: patch [options] [origfile [patchfile]] [+ [options] [origfile]]...
Options:
       [-ceEflnNRsStuv] [-b backup-ext] [-B backup-prefix] [-d directory]
       [-D symbol] [-Fmax-fuzz] [-o out-file] [-p[strip-count]]
       [-r rej-name] [-V {numbered,existing,simple}]


It seems that src/usr.bin/patch.c rev. 1.21 overrun when parsing option flags in get_some_switches().
>How-To-Repeat:
execute patch(1) with '-F0' or '-P0' flag.

>Fix:
diff -u -r1.21 patch.c
--- patch.c     14 Aug 2004 12:53:35 -0000      1.21
+++ patch.c     22 Aug 2004 16:13:55 -0000
@@ -578,7 +578,10 @@
        [-r rej-name] [-V {numbered,existing,simple}]\n");
                    my_exit(1);
                }
-               opt = *++s;
+               if (*s == '\0')
+                       opt = '\0';
+               else 
+                       opt = *++s;
            } while (opt != '\0');
        }
     }

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