.gitignore

@@ -1 +0,0 @@
-.vscode/

client.c

@@ -8,7 +8,6 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdbool.h>
-#include <termios.h>
 #define BUF 1024
 
 void remN(char *s) {
@@ -31,218 +30,226 @@ bool startsWith(const char *pre, const char *str)
 }
 
 int main (int argc, char **argv) {
-   int create_socket;
-   char buffer[BUF];
-   struct sockaddr_in address;
-   int size;
 
-   if( argc < 3 ){
+  int create_socket;
-      printf("Usage: %s ServerAdresse Port\n", argv[0]);
+  char buffer[BUF];
-      exit(EXIT_FAILURE);
+  struct sockaddr_in address;
-   }
+  int size;
-   if ((create_socket = socket (AF_INET, SOCK_STREAM, 0)) == -1)
+
-   {
+  if( argc < 3 ){
-      perror("Socket error");
+     printf("Usage: %s ServerAdresse Port\n", argv[0]);
-      return EXIT_FAILURE;
+     exit(EXIT_FAILURE);
-   }
+  }
-   memset(&address,0,sizeof(address));
+
-   address.sin_family = AF_INET;
+  if ((create_socket = socket (AF_INET, SOCK_STREAM, 0)) == -1)
-   address.sin_port = htons (atoi(argv[2]));
+  {
-   inet_aton (argv[1], &address.sin_addr);
+     perror("Socket error");
-   if (connect ( create_socket, (struct sockaddr *) &address, sizeof (address)) == 0)
+     return EXIT_FAILURE;
-   {
+  }
-      printf ("\x1b[32mConnection with server (%s) established\n\x1b[0m", inet_ntoa (address.sin_addr));
+  
-      size=recv(create_socket,buffer,BUF-1, 0);
+  memset(&address,0,sizeof(address));
-      if (size>0)
+  address.sin_family = AF_INET;
-      {
+  address.sin_port = htons (atoi(argv[2]));
-         buffer[size]= '\0';
+  inet_aton (argv[1], &address.sin_addr);
-         printf("\x1b[36m%s\x1b[0m",buffer);
+
+  if (connect ( create_socket, (struct sockaddr *) &address, sizeof (address)) == 0)
+  {
+     printf ("Connection with server (%s) established\n", inet_ntoa (address.sin_addr));
+     size=recv(create_socket,buffer,BUF-1, 0);
+     if (size>0)
+     {
+        buffer[size]= '\0';
+        printf("%s",buffer);
+     }
+  }
+  else
+  {
+     perror("Connect error - no server available");
+     return EXIT_FAILURE;
+  }
+
+
+  do {
+     //command vom user überprüfen
+     char command[6] = "";
+     printf ("\nEnter Command: \n");
+     fgets (command, 6, stdin);
+
+      //je nach command wird was audgeführt
+      if(startsWith("send", command) == true) {
+
+         char sender[8] = "";  
+         char empfaenger[8] = "";
+         char betreff[80] = "";
+         char nachricht[128] = "";
+         char bufferString[BUF] = "";
+         strcpy(bufferString, "");
+         strcat(bufferString, "send");
+         
+         //User Dateneingabe und daten einlesen
+         printf("<Sender max. 8 Zeichen>\n");
+         fgets (sender, 8, stdin);
+
+         printf("<Empfänger max. 8 Zeichen>\n");
+         fgets (empfaenger, 8, stdin);
+
+         printf("<Betreff max. 80 Zeichen>\n");
+         fgets (betreff, 80, stdin);
+
+         printf("<Nachricht, beliebige Anzahl an Zeilen>\n");
+         fgets (nachricht, 80, stdin);
+
+         //Buffer formatieren
+         strcat(bufferString, ";");
+         strcat(bufferString, sender);
+         strcat(bufferString, ";");
+         strcat(bufferString, empfaenger);
+         strcat(bufferString, ";");
+         strcat(bufferString, betreff);
+         strcat(bufferString, ";");
+         strcat(bufferString, nachricht);
+         remN(bufferString);
+         //printf("Buffer: %s", bufferString);
+         send(create_socket, bufferString, strlen (bufferString), 0);
+
+         //Response vom Server (OK oder ERR) empfangen und ausgeben
+         char readBuffer[BUF] = "";
+         int valread = read(create_socket , readBuffer, 1024); 
+         printf("\n%s\n", readBuffer);
+
       }
-   }
-   else
-   {
-      perror("\x1b[31mConnect error - no server available\x1b[0m");
-      return EXIT_FAILURE;
-   }
-   bool login = false;
-   do {
-      //command vom user überprüfen
-      char command[7] = "";
-      printf ("\n\x1b[35mEnter Command:\x1b[0m \n");
-      fgets (command, 7, stdin);
 
-      if (startsWith("login", command) == true && login == false)
+      else if(startsWith("list", command) == true) {
-      {
+         char bufferString[BUF] = "list";
-            char username[10] = "";
+         char username[8] = "";
-            char pw[50] = "";
+         char p[20] = "";
-            char bufferString[BUF] = "";
+         int counter = 0;
-            strcpy(bufferString, "login;");
+
-            //User Dateneingabe und daten einlesen
+         printf("<Username max. 8 Zeichen>\n");
-            printf("\x1b[35m<Username max. 8 Zeichen>\x1b[0m\n");
+         fgets (username, 8, stdin);
-            fgets (username, 10, stdin);
+         printf("<Posteingang oder Postausgang>\n");
-            printf("\x1b[35m<Passwort max. 50 Zeichen>\x1b[0m\n");
+         fgets (p, 20, stdin);
-            //PW eingabe unsichtbar machen
+
-            struct termios term, term_orig;
+         strcat(bufferString, ";");
-            tcgetattr(STDIN_FILENO, &term);
+         strcat(bufferString, username);
-            term_orig = term;
+         strcat(bufferString, ";");
-            term.c_lflag &= ~ECHO;
+         strcat(bufferString, p);
-            tcsetattr(STDIN_FILENO, TCSANOW, &term);
+         remN(bufferString);
-            scanf("%s", pw);
+         printf("%s ", bufferString);
-            // Eingabe wieder sichtbar schalten
+         send(create_socket, bufferString, strlen (bufferString), 0);
-            tcsetattr(STDIN_FILENO, TCSANOW, &term_orig);
+
+         char readBuffer[BUF] = "";
+         int valread = read(create_socket , readBuffer, 1024); 
+
+         char delimiter[] = ";";
+         char *ptr;
+         ptr = strtok(readBuffer, delimiter);
+
+         while(ptr != NULL) {
+
+
+            if(strcmp(ptr, ".") == 0) {
                
-            strcat(bufferString, username);
-            strcat(bufferString, ";");
-            strcat(bufferString, pw);
-            remN(bufferString);
-            send(create_socket, bufferString, strlen (bufferString), 0);
-            //Response vom Server (OK oder ERR) empfangen und ausgeben
-            char readBuffer[BUF] = "";
-            read(create_socket , readBuffer, 1023); 
-            remN(readBuffer);
-            if (strcmp("OK", readBuffer) == 0)
-            {
-               printf("\n\x1b[32m%s\x1b[0m\n", readBuffer);
-               login = true;
-            }else if (strcmp("ERR", readBuffer) == 0 || strcmp("Client Gesperrt", readBuffer) == 0)
-            {
-               printf("\n\x1b[31m%s\x1b[0m\n", readBuffer);
             }
-      }else if (login == false && startsWith("quit", command) == true)
-      {
-         strcpy(buffer, "quit\n");
-      }else if (login == false)
-      {
-         printf("\x1b[33mBitte zuerst <login> eingeben. Erst danach können sie auf das Program zugreifen!\x1b[0m\n");
-      }
-      if(login == true){
-         //je nach command wird was audgeführt
-         if(startsWith("send", command) == true) {
-            char sender[10] = "";  
-            char empfaenger[10] = "";
-            char betreff[82] = "";
-            char nachricht[128] = "";
-            char bufferString[BUF] = "";
-            strcpy(bufferString, "");
-            strcat(bufferString, "send");
-            //User Dateneingabe und daten einlesen
-            printf("\x1b[35m<Sender max. 8 Zeichen>\x1b[0m\n");
-            fgets (sender, 10, stdin);
-            printf("\x1b[35m<Empfänger max. 8 Zeichen>\x1b[0m\n");
-            fgets (empfaenger, 10, stdin);
-            printf("\x1b[35m<Betreff max. 80 Zeichen>\x1b[0m\n");
-            fgets (betreff, 82, stdin);
-            printf("\x1b[35m<Nachricht, beliebige Anzahl an Zeilen>\x1b[0m\n");
-            fgets (nachricht, 82, stdin);
-            //Buffer formatieren
-            strcat(bufferString, ";");
-            strcat(bufferString, sender);
-            strcat(bufferString, ";");
-            strcat(bufferString, empfaenger);
-            strcat(bufferString, ";");
-            strcat(bufferString, betreff);
-            strcat(bufferString, ";");
-            strcat(bufferString, nachricht);
-            remN(bufferString);
-            send(create_socket, bufferString, strlen (bufferString), 0);
-            //Response vom Server (OK oder ERR) empfangen und ausgeben
-            char readBuffer[BUF] = "";
-            read(create_socket , readBuffer, 1024); 
-            printf("\n%s\n", readBuffer);
-         }else if(startsWith("list", command) == true) {
-            char bufferString[BUF] = "list";
-            char username[10] = "";
-            char p[22] = "";
-            int counter = 0;
-            printf("\x1b[35m<Username max. 8 Zeichen>\x1b[0m\n");
-            fgets (username, 10, stdin);
-            printf("\x1b[35m<Posteingang oder Postausgang>\x1b[0m\n");
-            fgets (p, 22, stdin);
 
-            strcat(bufferString, ";");
+            else if(strcmp(ptr, "..") == 0) {
-            strcat(bufferString, username);
-            strcat(bufferString, ";");
-            strcat(bufferString, p);
-            remN(bufferString);
-            send(create_socket, bufferString, strlen (bufferString), 0);
                
-            char readBuffer[BUF] = "";
-            read(create_socket , readBuffer, 1024); 
-
-            char delimiter[] = ";";
-            char *ptr;
-            ptr = strtok(readBuffer, delimiter);
-
-            while(ptr != NULL) {
-               if(strcmp(ptr, ".") == 0) {
-                  
-               }else if(strcmp(ptr, "..") == 0) {
-                  
-               }else if (counter == 0) {
-                  printf("\x1b[35m<Anzahl der Nachrichten für den User: %s>\x1b[0m\n", ptr);
-               }else {
-                  printf("Betreff: %s \n", ptr);
-               }
-               counter = counter + 1;
-               // naechsten Abschnitt erstellen
-               ptr = strtok(NULL, delimiter);
             }
-         }else if(startsWith("read", command) == true) {
-            char bufferString[BUF] = "read";
-            char username[10] = "";
-            char nid[82] = "";
-            char folder[22] = "";
 
-            printf("\x1b[35m<Username max. 8 Zeichen>\x1b[0m\n");
+            else if (counter == 0) {
-            fgets (username, 10, stdin);
+               printf("<Anzahl der Nachrichten für den User: %s>\n", ptr);
-            printf("\x1b[35m<posteingang oder postausgang>\x1b[0m\n");
+            }
-            fgets (folder, 22, stdin);
-            printf("\x1b[35m<Nachrichten-Nummer>\x1b[0m\n");
-            fgets (nid, 82, stdin);
 
-            strcat(bufferString, ";");
+            else {
-            strcat(bufferString, username);
+               printf("Betreff: %s \n", ptr);
-            strcat(bufferString, ";");
+               //printf("%.*s", 17, ptr + 5);
-            strcat(bufferString, folder);
+            }
-            strcat(bufferString, ";");
-            strcat(bufferString, nid);
-            remN(bufferString);
             
-            send(create_socket, bufferString, strlen (bufferString), 0);
+            counter = counter + 1;
-            char readBuffer[BUF] = "";
-            read(create_socket , readBuffer, 1000); 
-            printf("\n%s\n", readBuffer ); 
-         }else if(startsWith("del", command) == true) {
-            char username[10] = "";  
-            char nachrichtennummer[82] = "";
-            char bufferString[BUF] = "del";
-            char p[22] = "";
 
-            printf("\x1b[35m<Username max. 8 Zeichen>\x1b[0m\n");
+            // naechsten Abschnitt erstellen
-            fgets (username, 10, stdin);
+ 	         ptr = strtok(NULL, delimiter);
-            printf("\x1b[35m<Posteingang oder Postausgang>\x1b[0m\n");
-            fgets (p, 22, stdin);
-            printf("\x1b[35m<Nachrichten-Nummer>\x1b[0m\n");
-            fgets (nachrichtennummer, 82, stdin);
-
-            strcat(bufferString, ";");
-            strcat(bufferString, username);
-            strcat(bufferString, ";");
-            strcat(bufferString, p);
-            strcat(bufferString, ";");
-            strcat(bufferString, nachrichtennummer);
-            remN(bufferString);
-            send(create_socket, bufferString, strlen (bufferString), 0);
-            char readBuffer[BUF] = "";
-            read(create_socket , readBuffer, 1024); 
-            printf("\n%s\n", readBuffer ); 
-         }else if(startsWith("quit", command) == true) {
-            strcpy(buffer, "quit\n");
-         }else {
-            printf("DAS IST KEIN COMMAND!!!!!");
          }
+
       }
-   }while (strcmp (buffer, "quit\n") != 0);
+
-   close (create_socket);
+      else if(startsWith("read", command) == true) {
-   return EXIT_SUCCESS;
+         char bufferString[BUF] = "read";
+         char username[8] = "";
+         char nid[80] = "";
+         char folder[20] = "";
+
+         printf("<Username max. 8 Zeichen>\n");
+         fgets (username, 8, stdin);
+         printf("<posteingang oder postausgang>\n");
+         fgets (folder, 20, stdin);
+         printf("<Nachrichten-Nummer>\n");
+         fgets (nid, 80, stdin);
+
+         strcat(bufferString, ";");
+         strcat(bufferString, username);
+         strcat(bufferString, ";");
+         strcat(bufferString, folder);
+         strcat(bufferString, ";");
+         strcat(bufferString, nid);
+         remN(bufferString);
+
+         //printf("%s ", bufferString);
+
+         send(create_socket, bufferString, strlen (bufferString), 0);
+
+         //strcpy(buffer, "");
+         //buffer[size]= '\0';
+         char readBuffer[BUF] = "";
+         int valread = read(create_socket , readBuffer, 1000); 
+         printf("\n%s\n", readBuffer ); 
+
+      }
+
+      else if(startsWith("del", command) == true) {
+         //printf("\n del");
+
+         char username[8] = "";  
+         char nachrichtennummer[80] = "";
+         char bufferString[BUF] = "del";
+         char p[20] = "";
+
+         printf("<Username max. 8 Zeichen>\n");
+         fgets (username, 8, stdin);
+         printf("<Posteingang oder Postausgang>\n");
+         fgets (p, 20, stdin);
+         printf("<Nachrichten-Nummer>\n");
+         fgets (nachrichtennummer, 80, stdin);
+
+         strcat(bufferString, ";");
+         strcat(bufferString, username);
+         strcat(bufferString, ";");
+         strcat(bufferString, p);
+         strcat(bufferString, ";");
+         strcat(bufferString, nachrichtennummer);
+         remN(bufferString);
+         //printf("%s ", bufferString);
+         send(create_socket, bufferString, strlen (bufferString), 0);
+
+         char readBuffer[BUF] = "";
+         int valread = read(create_socket , readBuffer, 1024); 
+         printf("\n%s\n", readBuffer ); 
+
+      }
+
+      else if(startsWith("quit", command) == true) {
+         strcpy(buffer, "quit\n");
+      }
+
+      else {
+         printf("DAS IST KEIN COMMAND!!!!!");
+      }
+
+      
+
+     
+  } 
+  while (strcmp (buffer, "quit\n") != 0);
+  close (create_socket);
+  return EXIT_SUCCESS;
 }

makefile

@@ -1,26 +1,25 @@
 #Client und Server kompilieren
-all: server.c client.c
+all: myserver.c myclient.c
-	gcc -Wall -o server server.c -lldap -llber -lpthread
+	gcc myserver.c -o myserver
-	gcc -Wall -o client client.c -lldap -llber -lpthread
+	gcc myclient.c -o myclient
-
 	
 #Kompilierten Client und Server löschen	
-clean: client server
+clean: myclient myserver
-	rm -f client server
+	rm -f myclient myserver
 
 #Nur den Client kompilieren:
-client: client.c
+client: myclient.c
-	gcc -Wall -o client client.c -lldap -llber -lpthread
+	gcc myclient.c -o myclient
 
 #Nur den Server kompilieren:
-server: server.c
+server: myserver.c
-	gcc -Wall -o server server.c -lldap -llber -lpthread
+	gcc myserver.c -o myserver
 
 #Kompilierten Server löschen	
-cleanS: server
+cleanS: myserver
-	rm -f server
+	rm -f myserver
 
 #Kompilierten Client löschen	
-cleanC: client
+cleanC: myclient
-	rm -f client
+	rm -f myclient
 

readme.md

@@ -1,47 +0,0 @@
-
-# Protokoll 🔧
-
-```
-Als erstes muss der User immer der Befehl eingegeben (send, read, list oder delete). Danach schreibt der Client 
-immer eine Zeile, was der User als nächstes eingeben soll. Die Buffer Strings der Befehle sind folgerndermaßen 
-aufgebaut:
-
-SEND: send;sender;empänger;betreff;nachricht
-LIST: list;username;postEinAusgang
-READ: read;username;postEinAusgang;nid
-DEL: del;username;postEinAusgang;nid
-
-Der Buffer wird immer als Ganzes (wie oben beschrieben) vom Client an den Server übertragen (nicht Blockweise).
-Der Client fügt die Usereingaben als String zusammen und trennt sie mit einem ";". Der Server splittet den Befehl
-dann anhand des Delimiters ";" und geht jedes einzelne Attribut (z.B. username, nid) in einer Schleife durch und
-führt den entsprechende Aktionen aus. Als erstes Attribut steht immer der Befehl, damit der Server sofort erkennt,
-welche Aktion er ausführen soll. Die nid (Nachrichten ID) wird am Server erzeugt und setzt sich aus einem Timestamp
-+ dem Betreff zusammen.
-
-Bei send und delete sendet der Server entweder OK oder ERR zurück. Bei list, die Anzahl der Nachrichten und pro
-Zeile den Betreff. Bei read wird die gesamte Nachricht (nid, Sent From/To, Betreff, Nachricht) zurückgesendet.
-
-Am Server gibt es die Verzeichnisse Posteingang und Postausgang. Darin sind Verzeichniss mit den jeweiligen
-Usernamen und darin befinden sich .txt Dateien mit den Nachrichten.
-
-Eine Nachricht wird zb. folgerndermaßen am Server gespeichert:
-
-ID: 2020-10-2918:05:32hallo
-Sent to: if20b206
-Betreff: hallo
-Message: wie gehts
-
-```
-
-# Installation
-```
-sudo apt-get install ldap-utils
-sudo apt-get install libldap
-sudo apt-get update -y
-sudo apt-get install -y libldap-dev
-```
-
-# Erstellt von 
-
-* Lukas Nowy
-* Georg Reisinger

readme.txt

@@ -0,0 +1,4 @@
+SEND: send;sender;empänger;betreff;nachricht
+LIST: list:username;postEinAusgang
+READ: read;username;postEinAusgang;nid
+DEL: del;username;postEinAusgang;nid