src/auth/passdb-bsdauth.c

	passdb-bsdauth.c revision 1f1e81aab38d833d1c9cdc244c91fd762e0080d4
/* Copyright (C) 2002-2003 Timo Sirainen */

#include "config.h"
#undef HAVE_CONFIG_H

#ifdef PASSDB_BSDAUTH

#include "common.h"
#include "safe-memset.h"
#include "passdb.h"
#include "mycrypt.h"

#include <login_cap.h>
#include <bsd_auth.h>
#include <pwd.h>

static void
bsdauth_verify_plain(struct auth_request *request, const char *password,
            verify_plain_callback_t *callback)
{
    struct passwd *pw;
    int result;

    pw = getpwnam(request->user);
    if (pw == NULL) {
        if (verbose) {
            i_info("passwd(%s): unknown user",
                   get_log_prefix(request));
        }
        callback(PASSDB_RESULT_USER_UNKNOWN, request);
        return;
    }

    if (!IS_VALID_PASSWD(pw->pw_passwd)) {
        if (verbose) {
            i_info("passwd(%s): invalid password field '%s'",
                   get_log_prefix(request), pw->pw_passwd);
        }
        callback(PASSDB_RESULT_USER_DISABLED, request);
        return;
    }

    /* check if the password is valid */
    result = auth_userokay(request->user, NULL, NULL,
                   t_strdup_noconst(password));

    /* clear the passwords from memory */
    safe_memset(pw->pw_passwd, 0, strlen(pw->pw_passwd));

    if (!result) {
        if (verbose) {
            i_info("passwd(%s): password mismatch",
                   get_log_prefix(request));
        }
        callback(PASSDB_RESULT_PASSWORD_MISMATCH, request);
        return;
    }

    callback(PASSDB_RESULT_OK, request);
}

static void bsdauth_deinit(void)
{
    endpwent();
}

struct passdb_module passdb_bsdauth = {
    "bsdauth",

    NULL, NULL,
    bsdauth_deinit,

    bsdauth_verify_plain,
    NULL
};

#endif