[PATCH iptables] print warnings to stderr
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@duempel.org>
diff --git a/iptables.c b/iptables.c
index 25ca358..7096121 100644
--- a/iptables.c
+++ b/iptables.c
@@ -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);