diff options
Diffstat (limited to 'tools/tap-test.c')
-rw-r--r-- | tools/tap-test.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/tap-test.c b/tools/tap-test.c index 1074c9c9..fdc098aa 100644 --- a/tools/tap-test.c +++ b/tools/tap-test.c @@ -49,7 +49,7 @@ static int inet_ifup(const char *ifname) return -errno; memset(&ifr, 0, sizeof(ifr)); - strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); + strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name) - 1); if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) { err = -errno; @@ -89,7 +89,7 @@ static int create_tap(const char *ifname) memset(&ifr, 0, sizeof(ifr)); ifr.ifr_flags = IFF_TAP | IFF_NO_PI; - strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); + strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name) - 1); if (ioctl(fd, TUNSETIFF, (void *) &ifr) < 0) { perror("Failed to set TUN/TAP interface"); |