Rename all PAM-independant variables/comments.

there is nothing PAM-specific about pam_state or pam_state_t. therefore
rename them to be authenticator independant.

i3lock.c

@@ -59,11 +59,11 @@ bool unlock_indicator = true;
 char *modifier_string = NULL;
 static bool dont_fork = false;
 struct ev_loop *main_loop;
-static struct ev_timer *clear_pam_wrong_timeout;
+static struct ev_timer *clear_auth_wrong_timeout;
 static struct ev_timer *clear_indicator_timeout;
 static struct ev_timer *discard_passwd_timeout;
 extern unlock_state_t unlock_state;
-extern pam_state_t pam_state;
+extern auth_state_t auth_state;
 int failed_attempts = 0;
 bool show_failed_attempts = false;
 bool retry_verification = false;
@@ -206,13 +206,13 @@ static void finish_input(void) {
 }
 
 /*
- * Resets pam_state to STATE_PAM_IDLE 2 seconds after an unsuccessful
+ * Resets auth_state to STATE_AUTH_IDLE 2 seconds after an unsuccessful
  * authentication event.
  *
  */
-static void clear_pam_wrong(EV_P_ ev_timer *w, int revents) {
-    DEBUG("clearing pam wrong\n");
-    pam_state = STATE_PAM_IDLE;
+static void clear_auth_wrong(EV_P_ ev_timer *w, int revents) {
+    DEBUG("clearing auth wrong\n");
+    auth_state = STATE_AUTH_IDLE;
     redraw_screen();
 
     /* Clear modifier string. */
@@ -222,9 +222,9 @@ static void clear_pam_wrong(EV_P_ ev_timer *w, int revents) {
     }
 
     /* Now free this timeout. */
-    STOP_TIMER(clear_pam_wrong_timeout);
+    STOP_TIMER(clear_auth_wrong_timeout);
 
-    /* retry with input done during pam verification */
+    /* retry with input done during auth verification */
     if (retry_verification) {
         retry_verification = false;
         finish_input();
@@ -248,8 +248,8 @@ static void discard_passwd_cb(EV_P_ ev_timer *w, int revents) {
 }
 
 static void input_done(void) {
-    STOP_TIMER(clear_pam_wrong_timeout);
-    pam_state = STATE_PAM_VERIFY;
+    STOP_TIMER(clear_auth_wrong_timeout);
+    auth_state = STATE_AUTH_VERIFY;
     unlock_state = STATE_STARTED;
     redraw_screen();
 
@@ -271,7 +271,7 @@ static void input_done(void) {
         fprintf(stderr, "Authentication failure\n");
 
     /* Get state of Caps and Num lock modifiers, to be displayed in
-     * STATE_PAM_WRONG state */
+     * STATE_AUTH_WRONG state */
     xkb_mod_index_t idx, num_mods;
     const char *mod_name;
 
@@ -305,7 +305,7 @@ static void input_done(void) {
         }
     }
 
-    pam_state = STATE_PAM_WRONG;
+    auth_state = STATE_AUTH_WRONG;
     failed_attempts += 1;
     clear_input();
     if (unlock_indicator)
@@ -314,7 +314,7 @@ static void input_done(void) {
     /* Clear this state after 2 seconds (unless the user enters another
      * password during that time). */
     ev_now_update(main_loop);
-    START_TIMER(clear_pam_wrong_timeout, TSTAMP_N_SECS(2), clear_pam_wrong);
+    START_TIMER(clear_auth_wrong_timeout, TSTAMP_N_SECS(2), clear_auth_wrong);
 
     /* Cancel the clear_indicator_timeout, it would hide the unlock indicator
      * too early. */
@@ -393,7 +393,7 @@ static void handle_key_press(xcb_key_press_event_t *event) {
             if ((ksym == XKB_KEY_j || ksym == XKB_KEY_m) && !ctrl)
                 break;
 
-            if (pam_state == STATE_PAM_WRONG) {
+            if (auth_state == STATE_AUTH_WRONG) {
                 retry_verification = true;
                 return;
             }
@@ -725,7 +725,7 @@ static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
 /*
  * This function is called from a fork()ed child and will raise the i3lock
  * window when the window is obscured, even when the main i3lock process is
- * blocked due to PAM.
+ * blocked due to the authentication backend.
  *
  */
 static void raise_loop(xcb_window_t window) {
@@ -985,7 +985,7 @@ int main(int argc, char *argv[]) {
     cursor = create_cursor(conn, screen, win, curs_choice);
 
     /* Display the "locking…" message while trying to grab the pointer/keyboard. */
-    pam_state = STATE_PAM_LOCK;
+    auth_state = STATE_AUTH_LOCK;
     grab_pointer_and_keyboard(conn, screen, cursor);
 
     pid_t pid = fork();
@@ -1012,7 +1012,7 @@ int main(int argc, char *argv[]) {
         errx(EXIT_FAILURE, "Could not initialize libev. Bad LIBEV_FLAGS?\n");
 
     /* Explicitly call the screen redraw in case "locking…" message was displayed */
-    pam_state = STATE_PAM_IDLE;
+    auth_state = STATE_AUTH_IDLE;
     redraw_screen();
 
     struct ev_io *xcb_watcher = calloc(sizeof(struct ev_io), 1);

unlock_indicator.c

@@ -78,7 +78,7 @@ static xcb_visualtype_t *vistype;
 /* Maintain the current unlock/PAM state to draw the appropriate unlock
  * indicator. */
 unlock_state_t unlock_state;
-pam_state_t pam_state;
+auth_state_t auth_state;
 
 /*
  * Returns the scaling factor of the current screen. E.g., on a 227 DPI MacBook
@@ -141,7 +141,7 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
     }
 
     if (unlock_indicator &&
-        (unlock_state >= STATE_KEY_PRESSED || pam_state > STATE_PAM_IDLE)) {
+        (unlock_state >= STATE_KEY_PRESSED || auth_state > STATE_AUTH_IDLE)) {
         cairo_scale(ctx, scaling_factor(), scaling_factor());
         /* Draw a (centered) circle with transparent background. */
         cairo_set_line_width(ctx, 10.0);
@@ -154,12 +154,12 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
 
         /* Use the appropriate color for the different PAM states
          * (currently verifying, wrong password, or default) */
-        switch (pam_state) {
-            case STATE_PAM_VERIFY:
-            case STATE_PAM_LOCK:
+        switch (auth_state) {
+            case STATE_AUTH_VERIFY:
+            case STATE_AUTH_LOCK:
                 cairo_set_source_rgba(ctx, 0, 114.0 / 255, 255.0 / 255, 0.75);
                 break;
-            case STATE_PAM_WRONG:
+            case STATE_AUTH_WRONG:
             case STATE_I3LOCK_LOCK_FAILED:
                 cairo_set_source_rgba(ctx, 250.0 / 255, 0, 0, 0.75);
                 break;
@@ -169,16 +169,16 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
         }
         cairo_fill_preserve(ctx);
 
-        switch (pam_state) {
-            case STATE_PAM_VERIFY:
-            case STATE_PAM_LOCK:
+        switch (auth_state) {
+            case STATE_AUTH_VERIFY:
+            case STATE_AUTH_LOCK:
                 cairo_set_source_rgb(ctx, 51.0 / 255, 0, 250.0 / 255);
                 break;
-            case STATE_PAM_WRONG:
+            case STATE_AUTH_WRONG:
             case STATE_I3LOCK_LOCK_FAILED:
                 cairo_set_source_rgb(ctx, 125.0 / 255, 51.0 / 255, 0);
                 break;
-            case STATE_PAM_IDLE:
+            case STATE_AUTH_IDLE:
                 cairo_set_source_rgb(ctx, 51.0 / 255, 125.0 / 255, 0);
                 break;
         }
@@ -205,14 +205,14 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
         cairo_set_source_rgb(ctx, 0, 0, 0);
         cairo_select_font_face(ctx, "sans-serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
         cairo_set_font_size(ctx, 28.0);
-        switch (pam_state) {
-            case STATE_PAM_VERIFY:
+        switch (auth_state) {
+            case STATE_AUTH_VERIFY:
                 text = "verifying…";
                 break;
-            case STATE_PAM_LOCK:
+            case STATE_AUTH_LOCK:
                 text = "locking…";
                 break;
-            case STATE_PAM_WRONG:
+            case STATE_AUTH_WRONG:
                 text = "wrong!";
                 break;
             case STATE_I3LOCK_LOCK_FAILED:
@@ -245,7 +245,7 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
             cairo_close_path(ctx);
         }
 
-        if (pam_state == STATE_PAM_WRONG && (modifier_string != NULL)) {
+        if (auth_state == STATE_AUTH_WRONG && (modifier_string != NULL)) {
             cairo_text_extents_t extents;
             double x, y;
 
@@ -334,7 +334,7 @@ xcb_pixmap_t draw_image(uint32_t *resolution) {
  *
  */
 void redraw_screen(void) {
-    DEBUG("redraw_screen(unlock_state = %d, pam_state = %d)\n", unlock_state, pam_state);
+    DEBUG("redraw_screen(unlock_state = %d, auth_state = %d)\n", unlock_state, auth_state);
     xcb_pixmap_t bg_pixmap = draw_image(last_resolution);
     xcb_change_window_attributes(conn, win, XCB_CW_BACK_PIXMAP, (uint32_t[1]){bg_pixmap});
     /* XXX: Possible optimization: Only update the area in the middle of the

unlock_indicator.h

@@ -11,12 +11,12 @@ typedef enum {
 } unlock_state_t;
 
 typedef enum {
-    STATE_PAM_IDLE = 0,          /* no PAM interaction at the moment */
-    STATE_PAM_VERIFY = 1,        /* currently verifying the password via PAM */
-    STATE_PAM_LOCK = 2,          /* currently locking the screen */
-    STATE_PAM_WRONG = 3,         /* the password was wrong */
+    STATE_AUTH_IDLE = 0,          /* no authenticator interaction at the moment */
+    STATE_AUTH_VERIFY = 1,        /* currently verifying the password via authenticator */
+    STATE_AUTH_LOCK = 2,          /* currently locking the screen */
+    STATE_AUTH_WRONG = 3,         /* the password was wrong */
     STATE_I3LOCK_LOCK_FAILED = 4 /* i3lock failed to load */
-} pam_state_t;
+} auth_state_t;
 
 xcb_pixmap_t draw_image(uint32_t* resolution);
 void redraw_screen(void);

xcb.c

@@ -24,7 +24,7 @@
 #include "cursors.h"
 #include "unlock_indicator.h"
 
-extern pam_state_t pam_state;
+extern auth_state_t auth_state;
 
 xcb_connection_t *conn;
 xcb_screen_t *screen;
@@ -262,7 +262,7 @@ void grab_pointer_and_keyboard(xcb_connection_t *conn, xcb_screen_t *screen, xcb
     /* After trying for 10000 times, i3lock will display an error message
      * for 2 sec prior to terminate. */
     if (tries <= 0) {
-        pam_state = STATE_I3LOCK_LOCK_FAILED;
+        auth_state = STATE_I3LOCK_LOCK_FAILED;
         redraw_screen();
         sleep(1);
         errx(EXIT_FAILURE, "Cannot grab pointer/keyboard");