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From 47d80904a1f72d559962cc5ad32fffd46672a34a Mon Sep 17 00:00:00 2001
From: Uoti Urpala <uoti.urpala@pp1.inet.fi>
Date: Thu, 20 Feb 2014 03:00:09 +0200
Subject: [PATCH] logs-show: fix corrupt output with empty messages
If a message had zero length, journalctl would print no newline, and
two output lines would be concatenated. Fix. The problem was
introduced in commit 31f7bf199452 ("logs-show: print multiline
messages"). Affected short and verbose output modes.
Before fix:
Feb 09 21:16:17 glyph dhclient[1323]: Feb 09 21:16:17 glyph NetworkManager[788]: <info> (enp4s2): DHCPv4 state changed nbi -> preinit
after:
Feb 09 21:16:17 glyph dhclient[1323]:
Feb 09 21:16:17 glyph NetworkManager[788]: <info> (enp4s2): DHCPv4 state changed nbi -> preinit
---
src/shared/logs-show.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/shared/logs-show.c b/src/shared/logs-show.c
index 61c3652..12d4a1c 100644
--- a/src/shared/logs-show.c
+++ b/src/shared/logs-show.c
@@ -124,6 +124,11 @@ static bool print_multiline(FILE *f, unsigned prefix, unsigned n_columns, Output
}
}
+ /* A special case: make sure that we print a newline when
+ the message is empty. */
+ if (message_len == 0)
+ fputs("\n", f);
+
for (pos = message;
pos < message + message_len;
pos = end + 1, line++) {
--
1.9.0
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