iptables/SOURCES/0086-extensions-libip6t_dst...

42 lines
1.1 KiB
Diff

From bea48d4a3323ce41973674e2edd64b990f8a849e Mon Sep 17 00:00:00 2001
From: Phil Sutter <phil@nwl.cc>
Date: Sat, 1 Oct 2022 00:17:50 +0200
Subject: [PATCH] extensions: libip6t_dst: Fix output for empty options
If no --dst-opts were given, print_options() would print just a
whitespace.
Fixes: 73866357e4a7a ("iptables: do not print trailing whitespaces")
Signed-off-by: Phil Sutter <phil@nwl.cc>
(cherry picked from commit 11e06cbb3a87739a3d958ba4c2f08fea7b100a68)
---
extensions/libip6t_dst.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/extensions/libip6t_dst.c b/extensions/libip6t_dst.c
index fe7e3403468ce..ba8cd66b13182 100644
--- a/extensions/libip6t_dst.c
+++ b/extensions/libip6t_dst.c
@@ -127,15 +127,15 @@ static void
print_options(unsigned int optsnr, uint16_t *optsp)
{
unsigned int i;
+ char sep = ' ';
- printf(" ");
for(i = 0; i < optsnr; i++) {
- printf("%d", (optsp[i] & 0xFF00) >> 8);
+ printf("%c%d", sep, (optsp[i] & 0xFF00) >> 8);
if ((optsp[i] & 0x00FF) != 0x00FF)
printf(":%d", (optsp[i] & 0x00FF));
- printf("%c", (i != optsnr - 1) ? ',' : ' ');
+ sep = ',';
}
}
--
2.40.0