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ipl2tp: Print help even on systems without l2tp support 

Signed-off-by: Phil Sutter <phil@nwl.cc>
This commit is contained in:
Phil Sutter 2016-02-24 09:12:47 +01:00 committed by Stephen Hemminger
parent 67eedcd9a1
commit e897776690
1 changed files with 3 additions and 5 deletions
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8
ip/ipl2tp.c
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@ -720,6 +720,9 @@ static int do_show(int argc, char **argv)
int do_ipl2tp(int argc, char **argv)
{
if (argc < 1 || !matches(*argv, "help"))
usage();
if (genl_family < 0) {
if (rtnl_open_byproto(&genl_rth, 0, NETLINK_GENERIC) < 0) {
fprintf(stderr, "Cannot open generic netlink socket\n");
@ -731,9 +734,6 @@ int do_ipl2tp(int argc, char **argv)
exit(1);
}
if (argc < 1)
usage();
if (matches(*argv, "add") == 0)
return do_add(argc-1, argv+1);
if (matches(*argv, "delete") == 0)
@ -742,8 +742,6 @@ int do_ipl2tp(int argc, char **argv)
matches(*argv, "lst") == 0 ||
matches(*argv, "list") == 0)
return do_show(argc-1, argv+1);
if (matches(*argv, "help") == 0)
usage();
fprintf(stderr, "Command \"%s\" is unknown, try \"ip l2tp help\".\n", *argv);
exit(-1);