??[cpp] view plaincopyprint?#include "stdafx.h" #include <winsock2.h> #pragma comment (lib,"ws2_32.lib") int _tmain(int argc, _TCHAR* argv[]) { p: printf("输入地址:"); char szHost[256]; memset(szHost,0,256); scanf("%s",szHost); unsigned long lAddr = inet_addr(szHost); if (lAddr == INADDR_NONE) { hostent *pHE = gethostbyname(szHost); if (!pHE) goto p; sockaddr_in sa; ...
http://blog.csdn.net/cpp_funs/article/details/69881541、htonl ()和ntohl( )u_long PASCAL FAR ntohl (u_long netlong);u_short PASCAL FAR ntohs (u_short netshort);ntohl( )-----网络顺序转换成主机顺序u_long PASCAL FAR htonl (u_long hostlong);u_short PASCAL FAR htons (u_short hostshort);htonl ()-----主机顺序转换成网络顺序2、inet_addr( )和inet_ntoa ( )unsigned long PASCAL FAR inet_addr (const char FAR * c...
网络编程 UDP 改变IP地址 在程序里动态改变主机的IP地址1，改变ipv4的地址#include <stdio.h> #include <string.h> #include <unistd.h> #include <sys/types.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <netinet/in.h> #include <net/if.h> #include <arpa/inet.h>int main(){int fd;ifreq ifr;sockaddr_in *s_in;fd = socket(AF_INET, SOCK_DGRAM, 0);s_in = (sockaddr_in*)&ifr.ifr_addr;s_in->sin_family = ...
/*获取计算机名和IP地址（linux c++版本）root@yiyouserver:~/XWH/xwh# g++ -o gethostname gethostname.cpproot@yiyouserver:~/XWH/xwh# ./gethostname计算机名:yiyouserverIP:192.168.205.128*/#include <stdio.h>#include <unistd.h>// 使用gethostname函数包含该头文件即可#include <sys/socket.h>#include <netdb.h> // 主机名转成点分 IP 地址void HostNameToIP(const char* szHostName, char* szIP,int len){ /* 即要解析的...