Re: Secure system calls -- how

From: Date: Fri, 11 Feb 2005 18:15:11 +0000
Subject: Re: Secure system calls -- how
References: 1 2 3 4  Groups: php.general 
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Hi, Jason Wong wrote: > To put it simply you would have to check *extremely* carefully the user > input to ensure that it is not malicious, and that it is what it should > be. I believe your original problem was about writing procmail files. No, not exactly. Thank you just the same, you bring up another good point. In the extreme case, when I want to be really sure of the file, I have to parse it, just as I parse all other data from the user. Yikes, that's a lot of work! I'm counting on not doing that, but making sure I escape_cmd or whatever it's called -- isn't that almost as good? - Niels

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