From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from localhost (fantadrom.bsd.lv [local]) by fantadrom.bsd.lv (OpenSMTPD) with ESMTPA id 0ff00a97 for ; Fri, 29 Mar 2019 16:27:36 -0500 (EST) Date: Fri, 29 Mar 2019 16:27:36 -0500 (EST) X-Mailinglist: mandoc-source Reply-To: source@mandoc.bsd.lv MIME-Version: 1.0 From: schwarze@mandoc.bsd.lv To: source@mandoc.bsd.lv Subject: mandoc: Set the maximum column index in a tbl(7) to the maximum *right* X-Mailer: activitymail 1.26, http://search.cpan.org/dist/activitymail/ Content-Type: text/plain; charset=utf-8 Message-ID: Archived-At: List-Archive: List-Post: Log Message: ----------- Set the maximum column index in a tbl(7) to the maximum *right* edge of any cell span, not to the maximum *left* edge, which may be smaller if the last column of the table is only reached by horizontal spans, but not by any regular cell in any row of the table. Otherwise, the algorithm calculating column widths accessed memomy after the end of the colwidth[] array, while it was trying to handle the rightmost column(s). Crash reported by Jason Thorpe via https://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=54069 and via Thomas Klausner (wiz@). Christos@ Zoulas sent a (correct, but slightly confusing) patch. The patch i'm committing here is easier to understand. Modified Files: -------------- mandoc: out.c Revision Data ------------- Index: out.c =================================================================== RCS file: /home/cvs/mandoc/mandoc/out.c,v retrieving revision 1.77 retrieving revision 1.78 diff -Lout.c -Lout.c -u -p -r1.77 -r1.78 --- a/out.c +++ b/out.c @@ -149,7 +149,7 @@ tblcalc(struct rofftbl *tbl, const struc gp = &first_group; for (dp = sp->first; dp != NULL; dp = dp->next) { icol = dp->layout->col; - while (icol > maxcol) + while (maxcol < icol + dp->hspans) tbl->cols[++maxcol].spacing = SIZE_MAX; col = tbl->cols + icol; col->flags |= dp->layout->flags; -- To unsubscribe send an email to source+unsubscribe@mandoc.bsd.lv