Interface eth1 : No IPv4 address assigned. # # ./get_interface_ip_address_ioctl eth2 Interface eth2 : No such device. SIOCGIFADDR操作使用struct ifreq中的ifr_ifru.ifru_addr字段;ifr_ifrn.ifrn_name指定为网络接口名称并调用ioctl(SIOCGIFADDR),返回后将ifr_ifru.ifru_addr转换为IPv4套接字地址结构,I...
close(sfd); exit(EXIT_SUCCESS);}static short get_if_flags(int s, struct ifreq *ifr){ int ret, saved_errno; short if_flags; saved_errno = errno; ret = ioctl(s, SIOCGIFFLAGS, ifr); if (ret == -1 && errno == 19) { fprintf(stderr, "Interface %s : No such device.\n", ifr-...
1. ioctl ioctl() is the most common way for applications to interface with device drivers. It is flexible and easily extended by adding new commands and can be passed through character devices, block devices as well as sockets and other special file descriptors. However, it is also very easy...
allowxperm multilink self:socket ioctl SIOCETHTOOL; allowxperm multilink self:packet_socket ioctl SIOCGIFINDEX; But, it didn't work, same issues occurred again. Do I miss something ? ioctl selinux Share Improve this question Follow asked Mar 13, 2019 at 3:24 Leon 2111 silver badge55 bronze...