Date: Tue, 13 Apr 2010 10:24:00 +0100 From: Rui Paulo <rpaulo@gmail.com> To: Hizel Ildar <hizel@vyborg.ru> Cc: freebsd-current@freebsd.org Subject: Re: SIGSEGV in dc, at bcode.c:277 (function reset_bmachine()) Message-ID: <9A01E942-1C57-4E93-8B86-274407DEF778@gmail.com> In-Reply-To: <20100413114803.784e2ab7@hzwork.vyborg.ru> References: <20100411001454.GO73901@bunrab.catwhisker.org> <20100413095350.3e74bb85@hzwork.vyborg.ru> <20100413114803.784e2ab7@hzwork.vyborg.ru>
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On 13 Apr 2010, at 08:48, Hizel Ildar wrote:
> My patch:
>
> foo# diff -ruN dc.c.orig dc.c
> --- dc.c.orig 2010-04-13 10:33:22.000000000 +0400
> +++ dc.c 2010-04-13 11:44:18.000000000 +0400
> @@ -87,12 +87,16 @@
> while ((ch = getopt_long(argc, argv, "e:f:Vx", long_options, NULL)) != -1) {
> switch (ch) {
> case 'e':
> + if(!preproc_done)
> + init_bmachine(extended_regs);
> src_setstring(&src, optarg);
> reset_bmachine(&src);
> eval();
> preproc_done = true;
> break;
> case 'f':
> + if(!preproc_done)
> + init_bmachine(extended_regs);
> procfile(optarg);
> preproc_done = true;
> break;
> @@ -114,7 +118,9 @@
> argc -= optind;
> argv += optind;
>
> - init_bmachine(extended_regs);
> + if (!preproc_done)
> + init_bmachine(extended_regs);
> +
> setlinebuf(stdout);
> setlinebuf(stderr);
>
>
> test:
>
> foo# dc -f /tmp/test
> 3
> foo# dc -e "6 2/p"
> 3
> foo# dc -e "6 2/p" -f /tmp/test
> 3
> 3
> foo# dc -e "6 2/p" -f /tmp/test /tmp/test
> 3
> 3
> 3
This looks sane to me.
Regards,
--
Rui Paulo
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