I am programming Cli/Serv app in c that the cli enter the file name of file then the server check up if the file exist @ server then the client can download it so this is part of code for server Assuming the Connection established after Accept();

** the complete code for server and client and header found in attacments.client..cmyHeader.hserver.cclient..cmyHeader.hserver.cabc.txtabc.txt
part of Server code:

Code:
strncpy(fileName,"abc.txt",128);
     for(;;)
    {
        bzero(&buffer,sizeof(buffer));
        //
        n=read(connfd,&buffer,sizeof(buffer));
        
        printf("you want to download File : %s ",buffer);
        
        CmpValue=strncmp(buffer,fileName,7);
        
        
        if(CmpValue==0)
            {
                bzero(&buffer,sizeof(buffer));
                sprintf(buffer,"File exist in server.\n");
                //n=write(connfd,&buffer,sizeof(buffer));
                //state=1;
                //buffer[0]=state;
                
                fp= fopen("abc.txt",O_RDONLY);
                //error handilng in open file
                if(fp<0)
                {
                    //bzero(&buffer,sizeof(buffer));
                    snprintf(buffer,sizeof(buffer),"%d",fd);
                    n=write(connfd,&buffer,sizeof(buffer));
                    continue;
                }
                    
                
                 while ((n= read(fd,buffer,sizeof(buffer)))) 
                    {
                        buffer[n] = '\0';
                        //printf("%s",buffer); 
                    }
                n=write(connfd,&buffer,sizeof(buffer));
                fclose(fp);
            }
        else
            {                
                bzero(&buffer,sizeof(buffer));
                sprintf(buffer,"ERROR : File not exist in server.\n");
                state=0;
                //buffer[0]=state;
                n=write(connfd,&buffer,sizeof(buffer));
            }
                                            
        if(n<0)
            err_msg("Error,Writing to socket \n");               
                
    } // end of for
    
}

and this part of Client code :

Code:
for(;;)
    {
        bzero(&buffer,sizeof(buffer));
        printf("Please Enter the file name you want to download : \n");
        fgets(buffer,sizeof(buffer),stdin);
        str=buffer;
        
        
        
        
        n=write(sockfd,&buffer,sizeof(buffer));  // Data request from server that send string to server    
            if(n<0)
            err_msg("ERROR WRITING TO SOCKET");
    
        n=read(sockfd,&buffer,sizeof(buffer));           //Data replay from server that the client read the length  and so on..
            if(n<0)
            err_msg("ERROR Reading FROM SOCKET");
        
    
        
        // To check the buffer if its contains fd=-1 or not    
        if (buffer[0]=='-'&& buffer[1]=='1')
        {
            printf("\n");
             err_msg("ERROR: opening file");
        }
        else
        {    

            printf("\n");
            printf("%s\n",buffer);
            
        }
    
    
        
            
        //TO check on buffer that include"--" coz this terminate the socket
        if(buffer[0]=='-'&& buffer[1]=='-')
        {    
            printf("You pressed \"--\" which terminate the client. \n");
            return 0;
        }
        //else
        //printf("Are you want to download File : %s \n",buffer);
                    
    }         // end of for
    
    close(sockfd);
    return 0;

So in this code i made the read the content of file from buffer ,but what i need it is how to make client save the file to Client directory????