diff options
Diffstat (limited to 'networking/ifenslave.c')
| -rw-r--r-- | networking/ifenslave.c | 40 |
1 files changed, 22 insertions, 18 deletions
diff --git a/networking/ifenslave.c b/networking/ifenslave.c index b119517..0aa2320 100644 --- a/networking/ifenslave.c +++ b/networking/ifenslave.c @@ -148,6 +148,10 @@ static void change_active(char *master_ifname, char *slave_ifname); static int enslave(char *master_ifname, char *slave_ifname); static int release(char *master_ifname, char *slave_ifname); +static void strncpy_IFNAMSIZ(char *dst, const char *src) +{ + strncpy(dst, src, IFNAMSIZ); +} int ifenslave_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int ifenslave_main(int argc ATTRIBUTE_UNUSED, char **argv) @@ -302,7 +306,7 @@ static void get_drv_info(char *master_ifname) struct ethtool_drvinfo info; memset(&ifr, 0, sizeof(ifr)); - strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(ifr.ifr_name, master_ifname); ifr.ifr_data = (caddr_t)&info; info.cmd = ETHTOOL_GDRVINFO; @@ -332,8 +336,8 @@ static void change_active(char *master_ifname, char *slave_ifname) slave_ifname); } - strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ); - strncpy(ifr.ifr_slave, slave_ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(ifr.ifr_name, master_ifname); + strncpy_IFNAMSIZ(ifr.ifr_slave, slave_ifname); if (ioctl(skfd, SIOCBONDCHANGEACTIVE, &ifr) < 0 && ioctl(skfd, BOND_CHANGE_ACTIVE_OLD, &ifr) < 0 ) { @@ -448,8 +452,8 @@ static int enslave(char *master_ifname, char *slave_ifname) } /* Do the real thing */ - strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ); - strncpy(ifr.ifr_slave, slave_ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(ifr.ifr_name, master_ifname); + strncpy_IFNAMSIZ(ifr.ifr_slave, slave_ifname); if (ioctl(skfd, SIOCBONDENSLAVE, &ifr) < 0 && ioctl(skfd, BOND_ENSLAVE_OLD, &ifr) < 0 ) { @@ -484,8 +488,8 @@ static int release(char *master_ifname, char *slave_ifname) return 1; } - strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ); - strncpy(ifr.ifr_slave, slave_ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(ifr.ifr_name, master_ifname); + strncpy_IFNAMSIZ(ifr.ifr_slave, slave_ifname); if (ioctl(skfd, SIOCBONDRELEASE, &ifr) < 0 && ioctl(skfd, BOND_RELEASE_OLD, &ifr) < 0 ) { @@ -508,11 +512,11 @@ static int get_if_settings(char *ifname, struct dev_data *dd) { int res; - strncpy(dd->mtu.ifr_name, ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(dd->mtu.ifr_name, ifname); res = ioctl(skfd, SIOCGIFMTU, &dd->mtu); - strncpy(dd->flags.ifr_name, ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(dd->flags.ifr_name, ifname); res |= ioctl(skfd, SIOCGIFFLAGS, &dd->flags); - strncpy(dd->hwaddr.ifr_name, ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(dd->hwaddr.ifr_name, ifname); res |= ioctl(skfd, SIOCGIFHWADDR, &dd->hwaddr); return res; @@ -520,7 +524,7 @@ static int get_if_settings(char *ifname, struct dev_data *dd) static int get_slave_flags(char *slave_ifname) { - strncpy(slave.flags.ifr_name, slave_ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(slave.flags.ifr_name, slave_ifname); return ioctl(skfd, SIOCGIFFLAGS, &slave.flags); } @@ -528,7 +532,7 @@ static int set_master_hwaddr(char *master_ifname, struct sockaddr *hwaddr) { struct ifreq ifr; - strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(ifr.ifr_name, master_ifname); memcpy(&(ifr.ifr_hwaddr), hwaddr, sizeof(struct sockaddr)); return ioctl(skfd, SIOCSIFHWADDR, &ifr); } @@ -537,7 +541,7 @@ static int set_slave_hwaddr(char *slave_ifname, struct sockaddr *hwaddr) { struct ifreq ifr; - strncpy(ifr.ifr_name, slave_ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(ifr.ifr_name, slave_ifname); memcpy(&(ifr.ifr_hwaddr), hwaddr, sizeof(struct sockaddr)); return ioctl(skfd, SIOCSIFHWADDR, &ifr); } @@ -547,7 +551,7 @@ static int set_slave_mtu(char *slave_ifname, int mtu) struct ifreq ifr; ifr.ifr_mtu = mtu; - strncpy(ifr.ifr_name, slave_ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(ifr.ifr_name, slave_ifname); return ioctl(skfd, SIOCSIFMTU, &ifr); } @@ -556,7 +560,7 @@ static int set_if_flags(char *ifname, short flags) struct ifreq ifr; ifr.ifr_flags = flags; - strncpy(ifr.ifr_name, ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(ifr.ifr_name, ifname); return ioctl(skfd, SIOCSIFFLAGS, &ifr); } @@ -580,7 +584,7 @@ static int clear_if_addr(char *ifname) { struct ifreq ifr; - strncpy(ifr.ifr_name, ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(ifr.ifr_name, ifname); ifr.ifr_addr.sa_family = AF_INET; memset(ifr.ifr_addr.sa_data, 0, sizeof(ifr.ifr_addr.sa_data)); return ioctl(skfd, SIOCSIFADDR, &ifr); @@ -603,7 +607,7 @@ static int set_if_addr(char *master_ifname, char *slave_ifname) int i; for (i = 0; i < ARRAY_SIZE(ifra); i++) { - strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(ifr.ifr_name, master_ifname); res = ioctl(skfd, ifra[i].g_ioctl, &ifr); if (res < 0) { ifr.ifr_addr.sa_family = AF_INET; @@ -611,7 +615,7 @@ static int set_if_addr(char *master_ifname, char *slave_ifname) sizeof(ifr.ifr_addr.sa_data)); } - strncpy(ifr.ifr_name, slave_ifname, IFNAMSIZ); + strncpy_IFNAMSIZ(ifr.ifr_name, slave_ifname); res = ioctl(skfd, ifra[i].s_ioctl, &ifr); if (res < 0) return res; |