iptables prints some of its error messages and warnings to stdout.
This patch applies to svn r7075 and will make iptables print
diagnostic messages to stderr instead.
Signed-off-by: Max Kellermann <max@xxxxxxxxxxx>
ip6tables.c | 14 ++++++++------
iptables.c | 7 ++++---
xtables.c | 7 ++++---
3 files changed, 16 insertions(+), 12 deletions(-)
Index: xtables.c
===================================================================
--- xtables.c (revision 7075)
+++ xtables.c (working copy)
@@ -246,9 +246,10 @@
if (vianame[i] == ':' ||
vianame[i] == '!' ||
vianame[i] == '*') {
- printf("Warning: weird character in interface"
- " `%s' (No aliases, :, ! or *).\n",
- vianame);
+ fprintf(stderr,
+ "Warning: weird character in interface"
+ " `%s' (No aliases, :, ! or *).\n",
+ vianame);
break;
}
}
Index: iptables.c
===================================================================
--- iptables.c (revision 7075)
+++ iptables.c (working copy)
@@ -1818,7 +1818,7 @@
optarg[0] = '\0';
continue;
}
- printf("Bad argument `%s'\n", optarg);
+ fprintf(stderr, "Bad argument `%s'\n", optarg);
exit_tryhelp(2);
default:
@@ -1990,8 +1990,9 @@
}
if (target && iptc_is_chain(jumpto, *handle)) {
- printf("Warning: using chain %s, not extension\n",
- jumpto);
+ fprintf(stderr,
+ "Warning: using chain %s, not extension\n",
+ jumpto);
if (target->t)
free(target->t);
Index: ip6tables.c
===================================================================
--- ip6tables.c (revision 7075)
+++ ip6tables.c (working copy)
@@ -1592,9 +1592,10 @@
if (is_exthdr(fw.ipv6.proto)
&& (fw.ipv6.invflags & IP6T_INV_PROTO) == 0)
- printf("Warning: never matched protocol: %s. "
- "use extension match instead.\n",
- protocol);
+ fprintf(stderr,
+ "Warning: never matched protocol: %s. "
+ "use extension match instead.\n",
+ protocol);
break;
case 's':
@@ -1753,7 +1754,7 @@
optarg[0] = '\0';
continue;
}
- printf("Bad argument `%s'\n", optarg);
+ fprintf(stderr, "Bad argument `%s'\n", optarg);
exit_tryhelp(2);
default:
@@ -1926,8 +1927,9 @@
}
if (target && ip6tc_is_chain(jumpto, *handle)) {
- printf("Warning: using chain %s, not extension\n",
- jumpto);
+ fprintf(stderr,
+ "Warning: using chain %s, not extension\n",
+ jumpto);
if (target->t)
free(target->t);
-
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