From b24d49fc3cf12ab9b5530c50357b8005e81cda1c Mon Sep 17 00:00:00 2001
From: Jakub Wilk <jwilk@jwilk.net>
Date: Mon, 4 May 2020 11:32:27 +0200
Subject: [PATCH] Get rid of unsafe SIGWINCH handler

The SIGWINCH signal handler was not async-signal-safe.
This could cause memory corruption if the signal was delivered at an
inopportune moment.

Rely on ncurses' builtin SIGWINCH signal handler instead.
---
 ttyclock.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/ttyclock.c b/ttyclock.c
index ac486d6..e2848d1 100644
--- a/ttyclock.c
+++ b/ttyclock.c
@@ -76,7 +76,6 @@ init(void)
      /* Init signal handler */
      sig.sa_handler = signal_handler;
      sig.sa_flags   = 0;
-     sigaction(SIGWINCH, &sig, NULL);
      sigaction(SIGTERM,  &sig, NULL);
      sigaction(SIGINT,   &sig, NULL);
      sigaction(SIGSEGV,  &sig, NULL);
@@ -143,11 +142,6 @@ signal_handler(int signal)
 {
      switch(signal)
      {
-     case SIGWINCH:
-          endwin();
-          init();
-          break;
-          /* Interruption signal */
      case SIGINT:
      case SIGTERM:
           ttyclock.running = False;
@@ -445,6 +439,11 @@ key_event(void)
 
      switch(c = wgetch(stdscr))
      {
+     case KEY_RESIZE:
+          endwin();
+          init();
+          break;
+
      case KEY_UP:
      case 'k':
      case 'K':