UDP Client—Linux
#include <stdio.h> #include <netinet/ip.h> int main(int argc,char *argv[]) { #define PERCENT 100 #define THOUSAND 1000 int a = 0; int iSock = 0, tmpSock = 0; int opt = 0; int iRet = 0; int iRes = 0; int iFileDesc = 0; int iFileRet = 0; unsigned short usPeerPort = 11000; char *pPeerIP = "192.168.1.100"; unsigned char pRecvBuff[20480]; unsigned char pSendBuff[20480] = "I'm Zynq ^_^"; time_t now; struct tm *p; unsigned int uiCnt = 0; unsigned int uiPeriod = 0; unsigned int uiSpeed = 0; unsigned int uiTmp = 0; char filePre[20] = {0}; char fileName[100] = {0}; char cmd[100] = {0}; struct sockaddr_in addrLocal, addrPeer; static unsigned int s_uiLen = 0; memset(pRecvBuff, 0x00, 1024); iSock = socket(AF_INET, SOCK_DGRAM, 0); if (iSock < 0) { printf("Create socket error![%d]\n", iSock); return 0; } //iRes = 1; //ioctlsocket(iSock, FIONBIO, (u_long FAR*)&iRes); /* 设置本地的IP地址 */ addrLocal.sin_family = AF_INET; addrLocal.sin_port = htons(1698); addrLocal.sin_addr.s_addr = htonl(INADDR_ANY); //addrLocal.sin_addr.S_un.S_addr = inet_addr("10.10.22.100"); /* 设置远端的IP地址 --by cqs */ addrPeer.sin_family = AF_INET; addrPeer.sin_port = htons(usPeerPort); addrPeer.sin_addr.s_addr = inet_addr(pPeerIP); iRet = bind(iSock, (struct sockaddr *)&addrLocal, sizeof(struct sockaddr)); if (iRet < 0) { printf("bind error\n"); return 0; } iRet = sendto(iSock, (char *)pSendBuff, 50, 0, (struct sockaddr*)&addrPeer, sizeof(struct sockaddr)); if (iRet > 0) { printf("Udp send: %s\n", pSendBuff); } else { printf("Udp send error![%d]\n", iRet); } return 0; }
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作者:朝雾之归乡
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