added KVCLient libraary version1.1

KVClient.c

@@ -58,9 +58,10 @@ int main(int argc, char const *argv[])
     } 
     char key[256]="abc";
     char value[256]="cde";
-    struct message *requestMessage= request('g',key,value);
-    struct message *replyMessage=malloc(sizeof(struct message));
-    func(sock,requestMessage);
+    char error[256];
+    printf("%d",(int)put(sock,key, value,error));
+    printf("%d",(int)del(sock,key,error));
+    printf("%d",(int)get(sock,key, value,error));
   
     return 0; 
 } 
\ No newline at end of file

KVClientLibrary.c

@@ -46,36 +46,96 @@ Else, it will malloc some memory into the error pointer and return it. And so on
 #include <sys/socket.h> 
 #include <sys/types.h> 
 #include <arpa/inet.h>
-struct message *request(char status,char* key,char* value)
+
+// to print a message
+void printMessage(struct message *requestMessage)
 {
-      if(!status ||(key==NULL && value==NULL) )
+    printf("[Message Generated]\n[[Status:%d]\n[Key:%s]\n[Value:%s]]\n",requestMessage->status,requestMessage->key,requestMessage->value);
+    return ;
+}
+int  get(int sockfd,char* key,char *value,char *error)
+{
+    if(key==NULL)
     {
-        printf("Invalid parameters in request()");
-        return NULL;
+        printf("Invalid PARAM to get\n");
+        return -1;
     }
-    struct message *requestMessage= malloc(sizeof(struct message));
-    requestMessage->status=status;
-
-    memcpy(requestMessage->key,key,256); //copied the complete key
+    struct message *request=malloc(sizeof(struct message));
+    request->status=1;//status code for get
+    memcpy(request->key,key,256); //copied the complete key passed as parameter
+    explicit_bzero(request->value,256*sizeof(char));//null value to to the request->value field
+    struct message *reply=malloc(sizeof(struct message));
+    write(sockfd, request, sizeof(struct message)); //passing to server and waiting for response
+    read(sockfd,reply,sizeof(struct message));
+    int status=reply->status;
+    if(status==400)
+    {
+        memcpy(error,reply->key,256*sizeof(char)); //copying the error in the key field for an failed get
 
-    if(strlen(requestMessage->key)<256)
+    }
+    else
     {
-        requestMessage->key[strlen(requestMessage->key)]='\0';
+        memcpy(value,reply->value,256*sizeof(char));
     }
-    if(value!=NULL)
+    
+    free(request);
+    free(reply);
+    return status; //return reply->key
+
+
+}
+int del(int sockfd,char *key,char *error)
+{
+    if(key==NULL)
     {
-        memcpy(requestMessage->value,value,256); //copied the complete value
+        printf("Invalid PARAM to del\n");
+        return -1;
     }
-   
-    if(strlen(requestMessage->value)<256) //to pad with \0
+    struct message *request=malloc(sizeof(struct message));
+    request->status=2;//status code for delete
+    memcpy(request->key,key,256); //copied the complete key passed as parameter
+    explicit_bzero(request->value,256*sizeof(char));//null value to to the request->value field
+
+    struct message *reply=malloc(sizeof(struct message));
+    write(sockfd, request, sizeof(struct message)); //passing to server and waiting for response to the del request
+    read(sockfd,reply,sizeof(struct message));
+    int status=(int)reply->status;
+    if(status==400)
     {
-        requestMessage->value[strlen(requestMessage->value)]='\0';
+        memcpy(error,reply->key,256*sizeof(char)); //copying the error in the key field for an failed del
     }
-   
-    return requestMessage;
+    free(request);
+    free(reply);
+    return status; //return reply->key
+
 }
-void printMessage(struct message *requestMessage)
+int put(int sockfd,char *key,char *value,char *error)
 {
-    printf("[Message Generated]\n[[Status:%c]\n[Key:%s]\n[Value:%s]]\n",requestMessage->status,requestMessage->key,requestMessage->value);
-    return ;
-}
\ No newline at end of file
+    if(key==NULL)
+    {
+        printf("Invalid PARAM to del\n");
+        return -1;
+    }
+    struct message *request=malloc(sizeof(struct message));
+    request->status=3;//status code for delete
+    memcpy(request->key,key,256); //copied the complete key passed as parameter
+    memcpy(request->value,value,256); //copied the complete key passed as parameter
+    struct message *reply=malloc(sizeof(struct message));
+    write(sockfd, request, sizeof(struct message)); //passing to server and waiting for response to the del request
+    read(sockfd,reply,sizeof(struct message));
+    int status=reply->status;
+    if(status==400)
+    {
+        memcpy(error,reply->key,256*sizeof(char)); //copying the error in the key field for an failed del
+    }
+    else
+    {
+        printMessage(reply);
+    }
+    
+    free(request);
+    free(reply);
+    return status; //return reply->key
+
+}
+

KVMessageFormat.h

@@ -15,7 +15,7 @@ Reasons for error could be GET key not found, DEL key not found etc.
 
 */
 struct message{
-    char status;
+    unsigned char status;
     char key[256];
     char value[256];
 };

KVServer.c

@@ -140,7 +140,10 @@ void *worker(void *args) {
                     /* Parse the actual message from client */
                     struct message *requestMessage= malloc(sizeof(struct message));
                     int readlength=read(events[i].data.fd  , requestMessage, sizeof(struct message)); 
-                    printf("\n[Message Received from client]\n[[Status:%c][Key:%s][Value:%s]]",requestMessage->status,requestMessage->key,requestMessage->value);               
+                    printf("\n[Message Received from client]\n[[Status:%d][Key:%s][Value:%s]]",requestMessage->status,requestMessage->key,requestMessage->value);               
+                   
+                    requestMessage->status=200;
+                    write(events[i].data.fd,requestMessage, sizeof(struct message));
                     fflush(stdout);
                 }                                 
                

temp.c

@@ -97,6 +97,11 @@ void main()
         message[i]='a';
     }
     message[sizeof(message)]='\0';
-    request('g',message,message);   
+    request('2',message,message);   
+    char c ='2';
+    int status=(int)c;
+    
+    printf("%d",status);
+
     //creating a message
 }
\ No newline at end of file