--- a/libpam-sys/src/constants.rs	Thu Jul 03 11:14:49 2025 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,283 +0,0 @@
-//! All the constants.
-//!
-//! These constants are tested on a per-platform basis by `libpam-sys-test`'s
-//! `test_constants.rs`.
-
-/// Macro to make defining a bunch of constants way easier.
-macro_rules! define {
-    ($(#[$attr:meta])* $($name:ident = $value:expr);+$(;)?) => {
-        define!(
-            @meta { $(#[$attr])* }
-            $(pub const $name: i32 = $value;)+
-        );
-    };
-    (@meta $m:tt $($i:item)+) => { define!(@expand $($m $i)+); };
-    (@expand $({ $(#[$m:meta])* } $i:item)+) => {$($(#[$m])* $i)+};
-}
-
-/// Macro to make defining C-style enums way easier.
-macro_rules! c_enum {
-    ($(#[$attr:meta])* $($name:ident $(= $value:expr)?,)*) => {
-        c_enum!(
-            (0)
-            $(#[$attr])*
-            $($name $(= $value)?,)*
-        );
-    };
-    (($n:expr) $(#[$attr:meta])* $name:ident, $($rest:ident $(= $rv:expr)?,)*) => {
-        $(#[$attr])* pub const $name: i32 = $n;
-        c_enum!(($n + 1) $(#[$attr])* $($rest $(= $rv)?,)*);
-    };
-    (($n:expr) $(#[$attr:meta])* $name:ident = $value:expr, $($rest:ident $(= $rv:expr)?,)*) => {
-        $(#[$attr])* pub const $name: i32 = $value;
-        c_enum!(($value + 1) $(#[$attr])* $($rest $(= $rv)?,)*);
-    };
-    (($n:expr) $(#[$attr:meta])*) => {};
-}
-
-// There are a few truly universal constants.
-// They are defined here directly.
-/// The successful return code.
-pub const PAM_SUCCESS: i32 = 0;
-
-c_enum!(
-    /// An item type.
-    PAM_SERVICE = 1,
-    PAM_USER,
-    PAM_TTY,
-    PAM_RHOST,
-    PAM_CONV,
-    PAM_AUTHTOK,
-    PAM_OLDAUTHTOK,
-    PAM_RUSER,
-    PAM_USER_PROMPT,
-);
-
-c_enum!(
-    /// A message style.
-    PAM_PROMPT_ECHO_OFF = 1,
-    PAM_PROMPT_ECHO_ON,
-    PAM_ERROR_MSG,
-    PAM_TEXT_INFO,
-);
-
-define!(
-    /// Maximum size of PAM conversation elements (suggested).
-    PAM_MAX_NUM_MSG = 32;
-    PAM_MAX_MSG_SIZE = 512;
-    PAM_MAX_RESP_SIZE = 512;
-);
-
-#[cfg(pam_impl = "LinuxPam")]
-pub use linux_pam::*;
-#[cfg(pam_impl = "LinuxPam")]
-mod linux_pam {
-    c_enum!(
-        /// An error return code.
-        PAM_OPEN_ERR = 1,
-        PAM_SYMBOL_ERR,
-        PAM_SERVICE_ERR,
-        PAM_SYSTEM_ERR,
-        PAM_BUF_ERR,
-        PAM_PERM_DENIED,
-        PAM_AUTH_ERR,
-        PAM_CRED_INSUFFICIENT,
-        PAM_AUTHINFO_UNAVAIL,
-        PAM_USER_UNKNOWN,
-        PAM_MAXTRIES,
-        PAM_NEW_AUTHTOK_REQD,
-        PAM_ACCT_EXPIRED,
-        PAM_SESSION_ERR,
-        PAM_CRED_UNAVAIL,
-        PAM_CRED_EXPIRED,
-        PAM_CRED_ERR,
-        PAM_NO_MODULE_DATA,
-        PAM_CONV_ERR,
-        PAM_AUTHTOK_ERR,
-        PAM_AUTHTOK_RECOVERY_ERR,
-        PAM_AUTHTOK_LOCK_BUSY,
-        PAM_AUTHTOK_DISABLE_AGING,
-        PAM_TRY_AGAIN,
-        PAM_IGNORE,
-        PAM_ABORT,
-        PAM_AUTHTOK_EXPIRED,
-        PAM_MODULE_UNKNOWN,
-        PAM_BAD_ITEM,
-        PAM_CONV_AGAIN,
-        PAM_INCOMPLETE,
-        _PAM_RETURN_VALUES,
-    );
-
-    define!(
-        /// A flag value.
-        PAM_SILENT = 0x8000;
-        PAM_DISALLOW_NULL_AUTHTOK = 0x0001;
-        PAM_ESTABLISH_CRED = 0x0002;
-        PAM_DELETE_CRED = 0x0004;
-        PAM_REINITIALIZE_CRED = 0x0008;
-        PAM_REFRESH_CRED = 0x0010;
-
-        PAM_CHANGE_EXPIRED_AUTHTOK = 0x0020;
-
-        PAM_PRELIM_CHECK = 0x4000;
-        PAM_UPDATE_AUTHTOK = 0x2000;
-        PAM_DATA_REPLACE = 0x20000000;
-    );
-
-    c_enum!(
-        /// An item type (Linux-only).
-        PAM_FAIL_DELAY = 10,
-        PAM_XDISPLAY,
-        PAM_XAUTHDATA,
-        PAM_AUTHTOK_TYPE,
-    );
-
-    /// To suppress messages in the item cleanup function.
-    pub const PAM_DATA_SILENT: i32 = 0x40000000;
-
-    // Message styles
-    define!(
-        /// A message style.
-        PAM_RADIO_TYPE = 5;
-        PAM_BINARY_PROMPT = 7;
-    );
-
-    pub const PAM_MODUTIL_NGROUPS: i32 = 64;
-}
-
-#[cfg(any(pam_impl = "OpenPam", pam_impl = "Sun", pam_impl = "XSso"))]
-pub use xsso_shared::*;
-#[cfg(any(pam_impl = "OpenPam", pam_impl = "Sun", pam_impl = "XSso"))]
-mod xsso_shared {
-    c_enum!(
-        /// An error return code.
-        PAM_OPEN_ERR = 1,
-        PAM_SYMBOL_ERR,
-        PAM_SERVICE_ERR,
-        PAM_SYSTEM_ERR,
-        PAM_BUF_ERR,
-        PAM_CONV_ERR,
-        PAM_PERM_DENIED,
-        PAM_MAXTRIES,
-        PAM_AUTH_ERR,
-        PAM_NEW_AUTHTOK_REQD,
-        PAM_CRED_INSUFFICIENT,
-        PAM_AUTHINFO_UNAVAIL,
-        PAM_USER_UNKNOWN,
-        PAM_CRED_UNAVAIL,
-        PAM_CRED_EXPIRED,
-        PAM_CRED_ERR,
-        PAM_ACCT_EXPIRED,
-        PAM_AUTHTOK_EXPIRED,
-        PAM_SESSION_ERR,
-        PAM_AUTHTOK_ERR,
-        PAM_AUTHTOK_RECOVERY_ERR,
-        PAM_AUTHTOK_LOCK_BUSY,
-        PAM_AUTHTOK_DISABLE_AGING,
-        PAM_NO_MODULE_DATA,
-        PAM_IGNORE,
-        PAM_ABORT,
-        PAM_TRY_AGAIN,
-    );
-    // While `PAM_MODULE_UNKNOWN` and `PAM_DOMAIN_UNKNOWN` are in X/SSO,
-    // Sun doesn't use them so we're omitting them here.
-
-    /// A general flag for PAM operations.
-    pub const PAM_SILENT: i32 = 0x80000000u32 as i32;
-
-    /// A flag for `pam_authenticate`.
-    pub const PAM_DISALLOW_NULL_AUTHTOK: i32 = 0b1;
-
-    define!(
-        /// A flag for `pam_setcred`.
-        PAM_ESTABLISH_CRED = 0b0001;
-        PAM_DELETE_CRED = 0b0010;
-        PAM_REINITIALIZE_CRED = 0b0100;
-        PAM_REFRESH_CRED = 0b1000;
-    );
-
-    define!(
-        /// A flag for `pam_sm_chauthtok`.
-        PAM_PRELIM_CHECK = 0b0001;
-        PAM_UPDATE_AUTHTOK = 0b0010;
-        PAM_CHANGE_EXPIRED_AUTHTOK = 0b0100;
-    );
-}
-
-#[cfg(pam_impl = "OpenPam")]
-pub use openpam::*;
-#[cfg(pam_impl = "OpenPam")]
-mod openpam {
-    c_enum!(
-        /// An error return code.
-        PAM_MODULE_UNKNOWN = 28,
-        PAM_DOMAIN_UNKNOWN,
-        PAM_BAD_HANDLE,
-        PAM_BAD_ITEM,
-        PAM_BAD_FEATURE,
-        PAM_BAD_CONSTANT,
-    );
-    /// The total number of PAM error codes (including success).
-    pub const PAM_NUM_ERRORS: i32 = 34;
-
-    c_enum!(
-        /// An item type.
-        PAM_REPOSITORY = 10,
-        PAM_AUTHTOK_PROMPT,
-        PAM_OLDAUTHTOK_PROMPT,
-        PAM_HOST,
-    );
-    /// The total number of PAM items.
-    pub const PAM_NUM_ITEMS: i32 = 14;
-
-    c_enum!(
-        /// An optional OpenPAM feature.
-        OPENPAM_RESTRICT_SERVICE_NAME,
-        OPENPAM_VERIFY_POLICY_FILE,
-        OPENPAM_RESTRICT_MODULE_NAME,
-        OPENPAM_VERIFY_MODULE_FILE,
-        OPENPAM_FALLBACK_TO_OTHER,
-    );
-    /// The number of optional OpenPAM features.
-    pub const OPENPAM_NUM_FEATURES: i32 = 5;
-
-    c_enum!(
-        /// Log level.
-        PAM_LOG_LIBDEBUG = -1,
-        PAM_LOG_DEBUG,
-        PAM_LOG_VERBOSE,
-        PAM_LOG_NOTICE,
-        PAM_LOG_ERROR,
-    );
-
-    c_enum!(
-        /// PAM primitives.
-        PAM_SM_AUTHENTICATE,
-        PAM_SM_SETCRED,
-        PAM_SM_ACCT_MGMT,
-        PAM_SM_OPEN_SESSION,
-        PAM_SM_CLOSE_SESSION,
-        PAM_SM_CHAUTHTOK,
-    );
-    /// The number of PAM primitives.
-    pub const PAM_NUM_PRIMITIVES: i32 = 6;
-}
-
-/// Constants exclusive to Illumos.
-#[cfg(pam_impl = "Sun")]
-pub use sun::*;
-#[cfg(pam_impl = "Sun")]
-mod sun {
-    /// The total number of PAM error codes.
-    pub const PAM_TOTAL_ERRNUM: i32 = 28;
-
-    c_enum!(
-        /// An item type.
-        PAM_REPOSITORY = 10,
-        PAM_RESOURCE,
-        PAM_AUSER,
-    );
-
-    /// A flag for `pam_chauthtok`.
-    pub const PAM_NO_AUTHTOK_CHECK: i32 = 0b1000;
-}