This does not make any better, but at least refer to
dmesg which is the common source of information to diagnose
kernel-side problems. This is helpful for newbie users.
# iptables -I INPUT -j CLUSTERIP
iptables: Invalid argument. Run `dmesg' for more information.
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
ip6tables-standalone.c | 3 ++-
iptables-standalone.c | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/ip6tables-standalone.c b/ip6tables-standalone.c
index 5bdcd4f..6c20bd8 100644
--- a/ip6tables-standalone.c
+++ b/ip6tables-standalone.c
@@ -70,7 +70,8 @@ main(int argc, char *argv[])
ret = ip6tc_commit(&handle);
if (!ret)
- fprintf(stderr, "ip6tables: %s\n",
+ fprintf(stderr, "ip6tables: %s. "
+ "Run `dmesg' for more information.\n",
ip6tc_strerror(errno));
exit(!ret);
diff --git a/iptables-standalone.c b/iptables-standalone.c
index 55d9bbe..630c586 100644
--- a/iptables-standalone.c
+++ b/iptables-standalone.c
@@ -71,7 +71,8 @@ main(int argc, char *argv[])
ret = iptc_commit(&handle);
if (!ret) {
- fprintf(stderr, "iptables: %s\n",
+ fprintf(stderr, "iptables: %s. "
+ "Run `dmesg' for more information.\n",
iptc_strerror(errno));
if (errno == EAGAIN) {
exit(RESOURCE_PROBLEM);
--
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