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/*
 * <src/pam_modules.rs>
 *
 * This file defines most of types for the Linux-PAM library app and modules.
 *
 * This file corresponds to <security/_pam_type.h>
 */


use libc::{c_int, c_char, c_void};

use super::_pam_types::PamHandleT;

#[link(name = "pam")]
extern {
    fn pam_set_data(pamh: *mut PamHandleT,
                    module_data_name: *const c_char,
                    data: *mut c_void,
                    cleanup: extern fn(*mut PamHandleT,
                                       data: *mut c_void,
                                       error_status: c_int)
                    );
    fn pam_get_data(pamh: *const PamHandleT,
                    module_data_name: *const c_char,
                    data: *const *const c_void);
    fn pam_get_user(pamh: *mut PamHandleT,
                    user: *const *const c_char,
                    prompt: *const c_char);
}

struct PamModule {
    name: *const c_char,
    pam_sm_authenticate: extern fn(pamh: *mut PamHandleT,
                                   flags: c_int,
                                   argc: c_int,
                                   argv: *const *mut c_char) -> c_int,
    pam_sm_setcred: extern fn(pamh: *mut PamHandleT,
                              flags: c_int,
                              argc: c_int,
                              argv: *const *mut c_char) -> c_int,
    pam_sm_acct_mgmt: extern fn(pamh: *mut PamHandleT,
                                flags: c_int,
                                argc: c_int,
                                argv: *const *mut c_char) -> c_int,
    pam_sm_open_session: extern fn(pamh: *mut PamHandleT,
                                   flag: c_int,
                                   argc: c_int,
                                   argv: *const *mut c_char) -> c_int,
    pam_sm_close_session: extern fn(pamh: *mut PamHandleT,
                                   flag: c_int,
                                   argc: c_int,
                                   argv: *const *mut c_char) -> c_int,
    pam_sm_chauthtok: extern fn(pamh: *mut PamHandleT,
                                   flag: c_int,
                                   argc: c_int,
                                   argv: *const *mut c_char) -> c_int
}

pub const PAM_PRELIM_CHECK: c_int   = 0x4000;
pub const PAM_UPDATE_AUTHTOK: c_int = 0x2000;
pub const PAM_DATA_REPLACE: c_int   = 0x20000000;