Date: Sun, 9 May 1999 15:30:52 -0400 From: "Korvus" <korvus@tasam.com> To: <freebsd-questions@freebsd.org> Subject: how to use crypt()... Message-ID: <008201be9a52$764ce820$948cfea9@korvus>
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I'm looking to make a quick C program (genpass.c) that can be used in
scripts like the following (this is only a quick example, it may not be 100%
correct):
#!/bin/sh
# $1 is a username, $2 is a new password for that user
export hashedpass = `echo $2 | genpass`
chpass -p "$hashedpass" $1
My only problem in doing this is my incomplete understanding of crypt().
From reading the help files, it appears as if a random 4-byte salt and a
4-byte "iteration count" are used as the second parameter. I have no clue
what the "iteration count" should be. I looked at the
/usr/src/usr.bin/passwd sources, but I still couldn't fully understand this.
If someone could write a quick C program to do this, I would be very
thankful (especially if they could also explain the process). Thanks...
- Jeff Poole
PS I am relatively new to BSD, but I have been using C for a while, so keep
that in mind when explaining this process...
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