更新

04a_嵌入式Linux应用开发实验班(快速入门)/05_使用JsonRPC实现前后台/source/5-4_TCP编程示例/01_tcp/client.c

@@ -22,6 +22,7 @@ int main(int argc, char **argv)
 	int iRet;
 	unsigned char ucSendBuf[1000];
 	int iSendLen;
+	int iRecvLen;
 
 	if (argc != 2)
 	{
@@ -60,6 +61,13 @@ int main(int argc, char **argv)
 				close(iSocketClient);
 				return -1;
 			}
+
+			iRecvLen = recv(iSocketClient, ucSendBuf, 999, 0);
+			if (iRecvLen > 0)
+			{
+				ucSendBuf[iRecvLen] = '\0';
+				printf("From server: %s\n", ucSendBuf);
+			}	
 		}
 	}
 	

04a_嵌入式Linux应用开发实验班(快速入门)/05_使用JsonRPC实现前后台/source/5-4_TCP编程示例/01_tcp/server.c

@@ -27,6 +27,7 @@ int main(int argc, char **argv)
 	struct sockaddr_in tSocketClientAddr;
 	int iRet;
 	int iAddrLen;
+	int cnt;
 
 	int iRecvLen;
 	unsigned char ucRecvBuf[1000];
@@ -65,12 +66,14 @@ int main(int argc, char **argv)
 	{
 		iAddrLen = sizeof(struct sockaddr);
 		iSocketClient = accept(iSocketServer, (struct sockaddr *)&tSocketClientAddr, &iAddrLen);
+		
 		if (-1 != iSocketClient)
 		{
 			iClientNum++;
 			printf("Get connect from client %d : %s\n",  iClientNum, inet_ntoa(tSocketClientAddr.sin_addr));
 			if (!fork())
 			{
+				cnt = 0;
 				/* 子进程的源码 */
 				while (1)
 				{
@@ -85,6 +88,8 @@ int main(int argc, char **argv)
 					{
 						ucRecvBuf[iRecvLen] = '\0';
 						printf("Get Msg From Client %d: %s\n", iClientNum, ucRecvBuf);
+						sprintf(ucRecvBuf, "Get Msg cnt %d", cnt++);
+						send(iSocketClient, ucRecvBuf, strlen(ucRecvBuf), 0);
 					}
 				}				
 			}