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From: "Ozkan Sezer (sezeroz AT gmail DOT com) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
Date: Mon, 20 Jun 2016 20:03:56 +0300
Message-ID: <CAA2C=vBRLP7tVyDOEc4MwANpALXuBPqt=Xxs+-Rxduy-q=WjBQ@mail.gmail.com>
Subject: djtar/unlzh.c bug introduced by whitespace changes
To: djgpp <djgpp AT delorie DOT com>
Content-Type: text/plain; charset=UTF-8
Reply-To: djgpp AT delorie DOT com

While reading the recent gcc6/-Wmisleading-intentation changes, I
noticed that in read_pt_len() of src/utils/djtar/unlzh.c, the
whitespace changes from 2012 (cvs r1.3 by Juan), a bug was intoduced,
where c should be incremented in every iteration of the while loop it
is now incremented strictly as once. The original code was:
		while (mask & bitbuf) {  mask >>= 1;  c++;  }

I suggest applying the following patch:

Index: unlzh.c
===================================================================
RCS file: /cvs/djgpp/djgpp/src/utils/djtar/unlzh.c,v
retrieving revision 1.6
diff -u -p -r1.6 unlzh.c
--- unlzh.c	20 Apr 2016 21:45:00 -0000	1.6
+++ unlzh.c	20 Jun 2016 17:01:28 -0000
@@ -237,8 +237,10 @@ local void read_pt_len(int nn, int nbit,
       {
         mask = (unsigned) 1 << (BITBUFSIZ - 1 - 3);
         while (mask & bitbuf)
+        {
           mask >>= 1;
-        c++;
+          c++;
+        }
       }
       fillbuf((c < 7) ? 3 : c - 3);
       pt_len[i++] = c;


OK?

--
O.S.

P.S.: I don't know whether there are any other bugs sneaked in via
those whitespace changes. May be worth investigating:  cvs diff -w
would be helpful.