Date: Wed, 26 Aug 1998 17:53:23 -0500 (CDT) From: Joel Ray Holveck <joelh@gnu.org> To: thyerm@camtech.net.au Cc: wosch@panke.de.freebsd.org, current@FreeBSD.ORG Subject: Re: file segment sizes of a core dump Message-ID: <199808262253.RAA03247@detlev.UUCP> In-Reply-To: <35E40C49.C673670C@camtech.net.au> (message from Matthew Thyer on Wed, 26 Aug 1998 22:53:21 %2B0930) References: <199808231906.VAA04727@campa.panke.de> <35E18FF5.B7FADA7B@camtech.net.au> <19980824193728.B4111@panke.de> <199808251931.OAA00986@detlev.UUCP> <35E40C49.C673670C@camtech.net.au>
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>>> How do you know that the file is a FreeBSD core file and not garbage? >>> file(1) has a gross hack to identify core files, see /usr/share/misc/magic. >> Why would you run size on garbage? > Good point. > Maybe a hybrid check which includes the /usr/share/misc/magic test > and a check for the existance of the segments could be used. > I dont know what segments are mandatory in a core file and it could > be a truncated file so maybe this is not a good idea. > Assuming the user knows what they are doing along with the magic > test should be enough. I accept GIGO as a fact of life. I would vote against needing the switch. That's all I have to say on the topic. Any thoughts on examining the corefile for truncated segments, etc. are beyond what I feel like contemplating today. I will also add that I think this is a neat hack, and I am anxious to see it. Best, joelh -- Joel Ray Holveck - joelh@gnu.org - http://www.wp.com/piquan Fourth law of programming: Anything that can go wrong wi sendmail: segmentation violation - core dumped To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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