一、导入
#import <sys/socket.h>
#import <sys/sockio.h>
#import <sys/ioctl.h>
#import <net/if.h>
#import <arpa/inet.h>
二、调用函数方法
例如：NSString*deviceIP_01 = [selfgetDeviceIPIpAddresses];
NLLog(@"deviceIP_01: %@",deviceIP_01);
- (NSString*)getDeviceIPIpAddresses
{
intsockfd =socket(AF_INET,SOCK_DGRAM,0);
// if (sockfd < 0) return nil;
NSMutableArray*ips = [NSMutableArrayarray];
intBUFFERSIZE =4096;
structifconfifc;
charbuffer[BUFFERSIZE], *ptr, lastname[IFNAMSIZ], *cptr;
structifreq*ifr, ifrcopy;
ifc.ifc_len= BUFFERSIZE;
ifc.ifc_buf= buffer;
if(ioctl(sockfd,SIOCGIFCONF, &ifc) >=0){
for(ptr = buffer; ptr < buffer + ifc.ifc_len; ){
ifr = (structifreq*)ptr;
intlen =sizeof(structsockaddr);
if(ifr->ifr_addr.sa_len> len) {
len = ifr->ifr_addr.sa_len;
}
ptr +=sizeof(ifr->ifr_name) + len;
if(ifr->ifr_addr.sa_family!=AF_INET)continue;
if((cptr = (char*)strchr(ifr->ifr_name,':')) !=NULL) *cptr =0;
if(strncmp(lastname, ifr->ifr_name,IFNAMSIZ) ==0)continue;
memcpy(lastname, ifr->ifr_name,IFNAMSIZ);
ifrcopy = *ifr;
ioctl(sockfd,SIOCGIFFLAGS, &ifrcopy);
if((ifrcopy.ifr_flags&IFF_UP) ==0)continue;
NSString*ip = [NSStringstringWithFormat:@"%s",inet_ntoa(((structsockaddr_in*)&ifr->ifr_addr)->sin_addr)];
[ipsaddObject:ip];
}
}
close(sockfd);
NSString*deviceIP =@"";
for(inti=0; i < ips.count; i++)
{
if(ips.count>0)
{
deviceIP = [NSStringstringWithFormat:@"%@",ips.lastObject];
}
}
returndeviceIP;
}
