From 585314e84c1a2e8941309874088963985e063213 Mon Sep 17 00:00:00 2001
From: Dave Reisner <dreisner@archlinux.org>
Date: Sat, 22 Sep 2012 12:50:27 -0400
Subject: journalctl: reset cached column count on SIGWINCH

This requires a little bit of tip-toeing around to explicitly avoid
touching the environment from a sig handler. Instead, simply create a
function to reset the var to its "unset" state, allowing the next call
to columns() to recalculate and cache the new value.
---
 src/journal/journalctl.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/journal')

diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index 6b580d4307..e491c27662 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -29,6 +29,7 @@
 #include <sys/poll.h>
 #include <time.h>
 #include <getopt.h>
+#include <signal.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
 #include <linux/fs.h>
@@ -175,6 +176,7 @@ static int parse_argv(int argc, char *argv[]) {
 
                 case 'f':
                         arg_follow = true;
+                        signal(SIGWINCH, columns_cache_reset);
                         break;
 
                 case 'o':
-- 
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