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/* Author: Wietse Venema, Eindhoven University of Technology. */
#include <string.h>
#include <stdio.h>
#include <pwd.h>
#include <unistd.h>
#include "skey.h"
/* skey_crypt - return encrypted UNIX passwd if s/key or regular password ok */
const char *skey_crypt(pp, salt, pwd, pwok)
char *pp;
char *salt;
struct passwd *pwd;
int pwok;
{
struct skey skey;
char *p;
/* Try s/key authentication even when the UNIX password is permitted. */
if (pwd != 0 && skeyinfo(&skey, pwd->pw_name, (char *) 0) == 0
&& skeyverify(&skey, pp) == 0) {
/* s/key authentication succeeded */
return (pwd->pw_passwd);
}
/* When s/key authentication does not work, always invoke crypt(). */
p = crypt(pp, salt);
if (pwok && pwd != 0 && strcmp(p, pwd->pw_passwd) == 0)
return (pwd->pw_passwd);
/* The user does not exist or entered bad input. */
return (":");
}
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