mirror of
https://gitee.com/houstudio/Cdroid.git
synced 2024-12-05 13:48:02 +08:00
116 lines
2.9 KiB
C++
116 lines
2.9 KiB
C++
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <ifaddrs.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
#include <linux/if.h>
|
|
#include <linux/sockios.h>
|
|
#include <sys/ioctl.h>
|
|
#include <netdb.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
//
|
|
int setIpAddr(const char*interface,const char*ipaddr){
|
|
int sockfd;
|
|
struct ifreq ifr;
|
|
struct sockaddr_in addr;
|
|
|
|
// Open a socket
|
|
sockfd = socket(AF_INET, SOCK_DGRAM, 0);
|
|
if (sockfd == -1) {
|
|
perror("socket");
|
|
return -1;
|
|
}
|
|
|
|
// Set the interface name
|
|
strncpy(ifr.ifr_name,interface, IFNAMSIZ);
|
|
|
|
// Set the IP address
|
|
inet_pton(AF_INET, ipaddr, &(addr.sin_addr));
|
|
memcpy(&ifr.ifr_addr, &addr, sizeof(struct sockaddr));
|
|
|
|
// Set the address
|
|
if (ioctl(sockfd, SIOCSIFADDR, &ifr) == -1) {
|
|
perror("ioctl");
|
|
return -1;
|
|
}
|
|
printf("IP address set successfully.\n");
|
|
// Close the socket
|
|
close(sockfd);
|
|
return 0;
|
|
}
|
|
|
|
int setdhcp(const char*intf) {
|
|
struct ifaddrs *ifaddr, *ifa;
|
|
int family, s;
|
|
char host[NI_MAXHOST];
|
|
if (getifaddrs(&ifaddr) == -1) {
|
|
printf("getifaddrsi\r\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
// Iterate through the linked list of network interfaces
|
|
for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
|
|
if (ifa->ifa_addr == NULL)
|
|
continue;
|
|
|
|
family = ifa->ifa_addr->sa_family;
|
|
|
|
// Check if the interface is IPv4 and DHCP
|
|
if (family == AF_INET && (ifa->ifa_flags & IFF_DYNAMIC)) {
|
|
s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in),
|
|
host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
|
|
if (s != 0) {
|
|
printf("getnameinfo() failed: %s\r\n", gai_strerror(s));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
printf("Interface: %s\r\n", ifa->ifa_name);
|
|
printf("IP address: %s\r\n", host);
|
|
}
|
|
printf("name=%s line %d\r\n",ifa->ifa_name,__LINE__);
|
|
}
|
|
|
|
printf("line %d\r\n",__LINE__);
|
|
freeifaddrs(ifaddr);
|
|
return 0;
|
|
}
|
|
|
|
int setDNS(){
|
|
int sockfd;
|
|
struct ifreq ifr;
|
|
struct sockaddr_in *dns;
|
|
#if 0
|
|
// Open a socket
|
|
sockfd = socket(AF_INET, SOCK_DGRAM, 0);
|
|
if (sockfd == -1) {
|
|
perror("socket");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
// Set the interface name
|
|
strncpy(ifr.ifr_name, "eth0", IFNAMSIZ);
|
|
|
|
// Set the DNS servers
|
|
dns = (struct sockaddr_in *)&ifr.ifr_dns;
|
|
dns[0].sin_family = AF_INET;
|
|
inet_pton(AF_INET, "8.8.8.8", &(dns[0].sin_addr));
|
|
dns[1].sin_family = AF_INET;
|
|
inet_pton(AF_INET, "8.8.4.4", &(dns[1].sin_addr));
|
|
|
|
// Set the DNS servers for the interface
|
|
if (ioctl(sockfd, SIOCSIFDNS, &ifr) == -1) {
|
|
perror("ioctl");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
printf("DNS servers set successfully.\n");
|
|
#endif
|
|
// Close the socket
|
|
close(sockfd);
|
|
return 0;
|
|
}
|
|
int main(int argc,char*argv[]){
|
|
setdhcp("");
|
|
return 0;
|
|
}
|