Bug in vi-applet: ZZ command does not recognize read-only files

[Paul Fox]

 > 
 > When I open a file in vi and modify it in the buffer (although it's
 > readonly) and afterwards try to save it using the ":wq" command, I get
 > the error message that the file is read-only. If I do ":wq!", I get
 > another error message from the write command itself that the file can't
 > be written, so far so good.
 > 
 > When I do the same with the "ZZ" command (which should be an equivalent
 > to :wq or :x) I don't get an error message that the file is not
 > writable, vi simply quits and returns 0 to the shell and makes me think
 > that everything is ok.

i'll take a look at this.  when i fixed the read-only behavior of
:wq last year, i didn't notice that ZZ had the same problem.

i'll look at your ":wn" as well.

paul

 > 
 > It took me quite a while to find out what was wrong because I thought
 > I definetly made some modifications to a file and after reboot the same
 > errors that should have been gone using the modifications still were
 > there.
 > 
 > So, in short, here's a patch that fixes the ZZ command to not quit when
 > the file is read-only but instead show an error message that the file
 > is read-only and continue editing.
 > 
 > As my last patch to :wn didn't apply to the current release, I'm asking
 > you what did I wrong?
 > 
 > This patch is against busybox 1.1.1 which I downloaded about three days
 > ago, so I hope it applies.
 > 
 > ciao,
 > - --
 > Alexander Griesser (Netzwerkadministration)
 > E-Mail: alexander.griesser at lkh-vil.or.at | Web: http://www.lkh-vil.or.at
 > KABEG LKH Villach | Nikolaigasse 43 | 9500 Villach
 > Tel.:   +43 4242 208 3061 | Fax.:   +43 4242 971 3061
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 > --------------030901070702040006010307
 > Content-Type: text/x-patch;
 >  name="vi-ro-ZZ-issue.diff"
 > Content-Transfer-Encoding: 7bit
 > Content-Disposition: inline;
 >  filename="vi-ro-ZZ-issue.diff"
 > 
 > --- vi.c.orig	2006-03-27 14:59:36.400002282 +0200
 > +++ vi.c	2006-03-27 15:00:03.017543741 +0200
 > @@ -3640,7 +3640,8 @@
 >  				editing = 0;
 >  			}
 >  		} else {
 > -			editing = 0;
 > +			psbs("\"%s\" File is read only", cfn);
 > +			goto dc1;
 >  		}
 >  		break;
 >  	case '^':			// ^- move to first non-blank on line
 > 
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 > 
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=---------------------
 paul fox, pgf at brightstareng.com