WebThe user passes a ifconf structure as argument to the ioctl. It contains a pointer to an array of ifreq structures in ifc_req and its length in bytes in ifc_len. The kernel fills the ifreqs … http://duoduokou.com/python/69075648451693518524.html
ioctl(2) - Linux manual page - Michael Kerrisk
Web24 mrt. 2024 · 假设内核返回2 个ifreq 结构,ioctl 返回时通过同一个ifconf 结构缓冲区填入了那2 个ifreq 结构,ifconf 结构的ifc_len 成员也被更新,以反映存放在缓冲区中的信息量. … Web23 okt. 2024 · Linux ioctl支持一下两个标志位: SIOCGIFFLAGS: 获取设备的活动标志位 SIOCSIFFLAGS: 修改设备的活动标志位 SIOCGIFFLAGS, SIOCSIFFLAGS Get or set … simple boxed cake mix recipes
获取网络接口信息——ioctl()函数与结构体struct ifreq、 struct …
Web4 feb. 2024 · Because we have to pass an index to kernel. For the requirement, use a member, struct in6_addr of struct in6_ifreq which the size of memory is 128 bits. Split the space into two parts and put the index value into the second space. We could even split it into 4 spaces of 32 bits based though, make it simple. WebThis man page describes the sockets interface which is used to configure network devices. Linux supports some standard ioctls to configure network devices. They can be used on any socket's file descriptor regardless of the family or type. Most of them pass an ifreq structure: struct ifreq {. char ifr_name [IFNAMSIZ]; /* Interface name */. WebThis tutorial shows you how to use SIOCGIFADDR . SIOCGIFADDR is defined in header sys/ioctl.h . SIOCGIFADDR can be used in the following way: struct ifreq *ifr = get_ifreq (ifname, SIOCGIFADDR); The full source code is listed as follows: Copy. simple boxer shorts