add new repoHEADmaster

1 files changed, 129 insertions, 0 deletions

diff --git a/Bachelor/Verteilte Systeme/Praktikum1/tcpcli.cpp b/Bachelor/Verteilte Systeme/Praktikum1/tcpcli.cpp
new file mode 100644
index 0000000..ac10492
--- /dev/null
+++ b/Bachelor/Verteilte Systeme/Praktikum1/tcpcli.cpp
@@ -0,0 +1,129 @@
+/************************************************************************
+ *
+ * Example of client using TCP protocol.
+ *
+ ***********************************************************************/
+#include <unistd.h>
+#include "inet.h"
+#include "error.cpp"
+#include "util.cpp"
+#include <iostream>
+using namespace std;
+
+const int MAXLINE=255; // max length of a line
+
+// send message msg to server and receive response in resp
+void mySend(int sockfd, char *msg, char *resp) {
+
+
+	int n; // Länge des Strings
+	// Daten senden
+	n = strlen(msg);
+	if (writen(sockfd, msg, n) != n)
+		err_sys("str_cli: writen error on socket"); // Fehler beim Schreiben
+
+	// Daten empfangen
+	n = readline(sockfd, resp, MAXLINE);
+	if (n < 0)
+		err_dump("str_cli: readline error");
+	resp[n] = 0;	/* null terminate */
+}
+
+
+void str_cli(FILE *fp, int sockfd)
+{
+	int	n;
+	char	sendline[MAXLINE], recvline[MAXLINE + 1];
+
+
+
+	// Auswahl der Optionen (Eintragen / Suchen)
+	int m_Auswahl = '0';
+
+	while (true) {
+
+		cout<<"Telefonbuch\n\nBitte auswählen:\n";
+		cout<<" 1: eintragen\n";
+		cout<<" 2: suchen\n";
+		cout<<" 3: beenden\n";
+		cin>>m_Auswahl;
+		switch (m_Auswahl) {
+			case (1):
+				// Neuen Eintrag im Telefonbuch
+				cout<<"Eintragen:\n";
+				char m_Name[50];
+				char m_Tel[50];
+
+				cout<<"Name: ";  scanf("%s", &m_Name);  strcat(m_Name, "\n");
+				cout<<"Tel: ";   scanf("%s", &m_Tel);   strcat(m_Tel, "\n");
+
+				mySend(sockfd, "addEntry\n", recvline);
+				if (strcmp(recvline,"OK\n") != 0)
+					printf("Error: %s\n", recvline);
+				mySend(sockfd, m_Name, recvline);
+				if (strcmp(recvline,"OK\n") != 0)
+					printf("Error: %s\n", recvline);
+				mySend(sockfd, m_Tel, recvline);
+				if (strcmp(recvline,"OK\n") != 0)
+					printf("Error: %s\n", recvline);
+				break;
+			case (2):
+				// Eintrag im Telefonbuch suchen
+				cout<<"Suchen\n";
+				char m_Search[50];
+				cout<<"Name: ";  scanf("%s", &m_Search);  strcat(m_Search, "\n");
+
+				mySend(sockfd, "searchEntry\n", recvline);
+				if (strcmp(recvline,"OK\n") != 0)
+					printf("Error: %s\n", recvline);
+				mySend(sockfd, m_Search, recvline);
+				printf("Ergebnis: %s\n", recvline);
+
+				break;
+			case (3):
+				mySend(sockfd,"end\n",recvline);
+				cout<<"Client beendet...\n";
+				return;
+				break;
+			default:
+				cout<<"Falsche Eingabe\n";
+				break;
+		}
+	}
+
+
+}
+/***********************************************************************/
+
+/************************************************************************
+ * main function, client for TCP/IP echo server
+ */
+int main(int argc, char** argv)
+{
+	int			sockfd;
+	struct sockaddr_in	serv_addr;
+
+	pname = argv[0];
+
+	// Fill in the structure "serv_addr" with the address of the
+	// server that we want to connect with.
+	bzero((char *) &serv_addr, sizeof(serv_addr));
+	serv_addr.sin_family      = AF_INET;
+	serv_addr.sin_addr.s_addr = inet_addr(SERV_HOST_ADDR);
+	serv_addr.sin_port        = htons(SERV_TCP_PORT);
+
+    // Open a TCP socket (an Internet stream socket).
+	if ( (sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
+		err_sys("client: can't open stream socket");
+
+	// Connect to the server.
+	if (connect(sockfd, (struct sockaddr *) &serv_addr,
+							sizeof(serv_addr)) < 0)
+		err_sys("client: can't connect to server");
+
+	str_cli(stdin, sockfd);		/* do it all */
+
+	close(sockfd);
+	exit(0);
+}
+/***********************************************************************/