From: Jan Engelhardt <vapier@gentoo.org>
Date: Sun, 11 Oct 2009 07:56:18 +0000 (-0400)
Subject: Support for nommu arches
X-Git-Tag: v1.4.6~22
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=94aa2ea67d7b8a669e8541f094661a1dc89722a3;p=thirdparty%2Fiptables.git

Support for nommu arches

Linux systems that lack a MMU cannot call fork(). Fortunately, the
only place in iptables that uses fork() follows it by an exec(), so
we can easily convert the code to vfork().

References: http://bugzilla.netfilter.org/show_bug.cgi?id=614

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
---

diff --git a/xtables.c b/xtables.c
index 41e0b871..45201248 100644
--- a/xtables.c
+++ b/xtables.c
@@ -331,7 +331,7 @@ int xtables_insmod(const char *modname, const char *modprobe, bool quiet)
 	 */
 	fflush(stdout);
 
-	switch (fork()) {
+	switch (vfork()) {
 	case 0:
 		argv[0] = (char *)modprobe;
 		argv[1] = (char *)modname;