}
int ethtool_get_driver(int fd, const char *ifname, char **ret) {
- struct ifreq ifr;
- struct ethtool_drvinfo ecmd;
+ struct ethtool_drvinfo ecmd = {
+ .cmd = ETHTOOL_GDRVINFO
+ };
+ struct ifreq ifr = {
+ .ifr_data = (void*) &ecmd
+ };
+ char *d;
int r;
- zero(ecmd);
- ecmd.cmd = ETHTOOL_GDRVINFO;
-
- zero(ifr);
strscpy(ifr.ifr_name, IFNAMSIZ, ifname);
- ifr.ifr_data = (void *)&ecmd;
r = ioctl(fd, SIOCETHTOOL, &ifr);
if (r < 0)
return -errno;
- *ret = strdup(ecmd.driver);
- if (!*ret)
+ d = strdup(ecmd.driver);
+ if (!d)
return -ENOMEM;
+ *ret = d;
return 0;
}