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native: Enforce safe strncpy usage in tap device setup

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This commit is contained in:
Simon Brummer 2018-06-10 17:01:05 +02:00
parent fd1a987bf1
commit 323a38819a
1 changed files with 2 additions and 1 deletions
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3
cpu/native/netdev_tap/netdev_tap.c
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@ -300,7 +300,8 @@ static int _send(netdev_t *netdev, const iolist_t *iolist)
void netdev_tap_setup(netdev_tap_t *dev, const netdev_tap_params_t *params) {
dev->netdev.driver = &netdev_driver_tap;
strncpy(dev->tap_name, *(params->tap_name), IFNAMSIZ);
strncpy(dev->tap_name, *(params->tap_name), IFNAMSIZ - 1);
dev->tap_name[IFNAMSIZ - 1] = '\0';
}
static void _tap_isr(int fd, void *arg) {