[PATCH RESEND] um,ethertap: use strncpy

From: Alan
Date: Tue Jan 20 2015 - 07:11:33 EST


I can't prove the case pointed out in
https://bugzilla.kernel.org/show_bug.cgi?id=82341
is correct so let us play safe.

Signed-off-by: Alan Cox <alan@xxxxxxxxxxxxxxx>
---
arch/um/os-Linux/drivers/ethertap_user.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/um/os-Linux/drivers/ethertap_user.c b/arch/um/os-Linux/drivers/ethertap_user.c
index b39b669..6d49182 100644
--- a/arch/um/os-Linux/drivers/ethertap_user.c
+++ b/arch/um/os-Linux/drivers/ethertap_user.c
@@ -105,7 +105,7 @@ static int etap_tramp(char *dev, char *gate, int control_me,
sprintf(data_fd_buf, "%d", data_remote);
sprintf(version_buf, "%d", UML_NET_VERSION);
if (gate != NULL) {
- strcpy(gate_buf, gate);
+ strncpy(gate_buf, gate, 15);
args = setup_args;
}
else args = nosetup_args;

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