Struct ifreq req
WebApr 1, 2024 · The ip_mreq structure is the IPv4 equivalent of the IPv6-based ipv6_mreq structure. The imr_interface member can be an interface index. Any IP address in the … Webstruct ifaddr: 89 {90: struct sockaddr ifa_addr; /* Address of interface. */ 91: union: 92 {93: struct sockaddr ifu_broadaddr; 94: struct sockaddr ifu_dstaddr; 95} ifa_ifu; 96: struct iface *ifa_ifp; /* Back-pointer to interface. */ 97: struct ifaddr *ifa_next; /* Next address for interface. */ 98}; 99: 100 # define ifa_broadaddr ifa_ifu.ifu ...
Struct ifreq req
Did you know?
WebMay 12, 2024 · char buf [128]; struct ifreq req; strcpy (req.ifr_name,"eth0"); req.ifr_data = buf; ioctl (fd, SIOCMYIOCTL, &ifr); Here the buffer is just a fixed size array, if you need more … http://m.blog.chinaunix.net/uid-7377299-id-112976.html
Webof bytes used by the ifreqstructures. Each structure has a set of interface flags that indicate whether the The following example shows ioctl(2)returning the SIOCGIFFLAGSflags for an interface specified by an ifreqstructure. Example 7–15 Obtaining Interface Flags struct ifreq *ifr; ifr = ifc.ifc_req; WebMar 4, 2010 · I'm trying to programatically retrieve certain info on my network interfaces and pack it into a string array. I do an ioctl call with the SIOCGIFCONF flag no problem, and …
WebJul 9, 2024 · SIOCGIFBRDADDR struct ifreq * Get the broadcast address for a protocol family and interface. SIOCGIFDESCR struct ifreq * Get the interface description, returned in the ifru_data field. SIOCSIFDESCR struct ifreq * Set the interface description to the value of the ifru_data field, limited to the size of IFDESCRSIZE. SIOCSIFFLAGS struct ifreq *
WebNetdev Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH net-next RFC v4 0/5] net: Make MAC/PHY time stamping selectable @ 2024-04-06 17:33 Köry Maincent 2024-04-06 17:33 ` [PATCH net-next RFC v4 1/5] net: ethtool: Refactor identical get_ts_info implementations Köry Maincent ` (5 more replies) 0 siblings, 6 replies; 23+ messages in …
WebEach stored entry will be an ifreq structure. To get the interface configuration list, the following fields must be set: ifc_len; ifcu_buf; See SIOCGIFADDR for more information … filing ups damage claimWebstruct ifconf [ int ifc_len; int ifc_configured; int ifc_returned; union { caddr_t ifcu_buf; struct ifreq *ifcu_req; } ifc_ifcu; ]; ifc_len is a value-result field. The caller passes the size of the buffer pointed to by ifcu_buf . ground beef carrots potatoesWebThe parameter lists for some C language socket calls include a pointer to a data structure defined by a C structure. The structures are defined in the header files in.h,, socket.h, and if.h. Table 1 shows the C structure calls. ground beef cartoonWebIfreq结构用来配置ip地址,激活接口,配置MTU。 在Linux系统中获取IP地址通常都是通过ifconfig命令来实现的,然而ifconfig命令实际是通过ioctl接口与内核通信,ifconfig命令首 … filing us taxesWebstruct ifreq *ifrp = NULL; /* cast var-data section (ifc_ifcu) to this */ char *outbuf ; int rc,size= 4096; bzero ( &ifc, sizeof ( struct ifconf) ); ifc. ifc_ifcu. ifcu_buf = outbuf = ( char *) malloc ( size ); /* output buf for ioctl */ ifc. ifc_len = ( int) size ; /* available size of output buffer */ rc = ioctl ( skfd, SIOCGIFCONF , &ifc ); ground beef casserole recipes with penneWebIt 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 with all current L3 interface addresses that are running: ifr_name … ground beef casserole amanda\u0027s cookinWebWithin each ifreq structure, ifr_name will receive the interface name, and ifr_addr the address. The actual number of bytes transferred is returned in ifc_len . If the size … filing usps claim