# HG changeset patch
# User Mikael Berthe <mikael@lilotux.net>
# Date 1207250456 -7200
# Node ID 6b98dc22946d6f8f9e357d0e8f7d6a6e3f2e5332
# Parent  f560710a6ad16ec20bc1262f1fdcf80b1ae9e0b5
Add optional SIGWINCH handler (Markus Hennecke)
This patch from Markus Hennecke adds a configure option to
provide a SIGWINCH handler.
It is useful on some systems like OpenBSD where there is no
default handler for this signal.

diff -r f560710a6ad1 -r 6b98dc22946d mcabber/configure.ac
--- a/mcabber/configure.ac	Wed Apr 02 22:31:23 2008 +0200
+++ b/mcabber/configure.ac	Thu Apr 03 21:20:56 2008 +0200
@@ -67,6 +67,16 @@
 # Check for tm_gmtoff
 MC_TM_GMTOFF
 
+# Check if we must provide a SIGWINCH handler
+AC_ARG_ENABLE(sigwinch,
+        [  --enable-sigwinch       compile with SIGWINCH handler],
+        [with_sigwinch=$enableval],
+        [with_sigwinch=$with_ext_funcs])
+AC_MSG_RESULT($with_sigwinch)
+if test "$with_sigwinch" = yes; then
+    AC_DEFINE(USE_SIGWINCH, [], [Provide own SIGWINCH handler])
+fi
+
 # Checks for libraries.
 
 AC_CHECK_LIB(charset, locale_charset)
diff -r f560710a6ad1 -r 6b98dc22946d mcabber/src/main.c
--- a/mcabber/src/main.c	Wed Apr 02 22:31:23 2008 +0200
+++ b/mcabber/src/main.c	Thu Apr 03 21:20:56 2008 +0200
@@ -222,6 +222,10 @@
     mcabber_terminate("Killed by SIGTERM");
   } else if (signum == SIGINT) {
     mcabber_terminate("Killed by SIGINT");
+#ifdef USE_SIGWINCH
+  } else if (signum == SIGWINCH) {
+    ungetch(KEY_RESIZE);
+#endif
   } else {
     scr_LogPrint(LPRINT_LOGNORM, "Caught signal: %d", signum);
   }
@@ -376,6 +380,9 @@
   signal(SIGTERM, sig_handler);
   signal(SIGINT,  sig_handler);
   signal(SIGCHLD, sig_handler);
+#ifdef USE_SIGWINCH
+  signal(SIGWINCH, sig_handler);
+#endif
   signal(SIGPIPE, SIG_IGN);
 
   /* Parse command line options */
diff -r f560710a6ad1 -r 6b98dc22946d mcabber/src/screen.c
--- a/mcabber/src/screen.c	Wed Apr 02 22:31:23 2008 +0200
+++ b/mcabber/src/screen.c	Thu Apr 03 21:20:56 2008 +0200
@@ -29,6 +29,11 @@
 #include <config.h>
 #include <locale.h>
 #include <assert.h>
+#ifdef USE_SIGWINCH
+# include <sys/ioctl.h>
+# include <termios.h>
+# include <unistd.h>
+#endif
 
 #ifdef HAVE_LOCALCHARSET_H
 # include <localcharset.h>
@@ -3771,7 +3776,17 @@
         scr_handle_CtrlC();
         break;
     case KEY_RESIZE:
+#ifdef USE_SIGWINCH
+        {
+            struct winsize size;
+            if (ioctl(STDIN_FILENO, TIOCGWINSZ, &size) != -1)
+              resizeterm(size.ws_row, size.ws_col);
+        }
         scr_Resize();
+        process_command(mkcmdstr("screen_refresh"), TRUE);
+#else
+        scr_Resize();
+#endif
         break;
     default:
         display_char = TRUE;