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List:       mandrake-expert
Subject:    [expert] passwd verification problem.
From:       Sheldon Lee Wen <tormak () home ! com>
Date:       2001-06-26 18:16:29
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Hi,

  I'm writing a program where I need to validate a users password.
Right now I'm using crypt and code like the following:

pentry is a pointer to a passwd struct obtained by using the users
userid.

err is in a int initialized to 0;
userpass is a c string containing the users plaintext password.

	if ( pentry == NULL ) {
   	perror("I couldn't get your encrypted password.");
		return err;
	}

	salt[0] = pentry->pw_passwd[0];
	salt[1] = pentry->pw_passwd[1];
	salt[2] = '\0';

	usercrypt = crypt(userpass, salt);
	if ((err = strcmp(usercrypt, pentry->pw_passwd)) == 0) {

the strcmp always returns unsuccessful even though I know the passwd I
put in when I try it is correct. Is there something funky I have to do b/c 
I'm using shadow passwd's and pam? The pw_passwd shows up in the debugger
as "x" instead of the encrypted version of the passwd.

I could use another set of eyeballs :)

Thanks.

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