working 8-file-transfer-protocol

Author: apsrcreatix

.gitignore

@@ -51,3 +51,4 @@ Module.symvers
 Mkfile.old
 dkms.conf
 .dropbox
+server

7-full-duplex-chat-tcp-ip/client.c

@@ -54,18 +54,20 @@ int main(int argc, char *argv[])
  struct sockaddr_in server_address;
 
  bzero(&server_address, sizeof(server_address));
- //what type of address we are woking with
- server_address.sin_family = AF_INET;
- 
+
+ struct hostent *host;
+  host=gethostbyname("127.0.0.1");
  //for taking the port number and htons converts the port # to the appropriate data type we want to write
  //to specifying the port
  //htons : conversion functions
  server_address.sin_port = htons(PORT);
 
  //structure within structure A.B.c
- server_address.sin_addr.s_addr = inet_addr("127.0.0.1"); 
+ memcpy((char *)&server_address.sin_addr.s_addr,host->h_addr_list[0],host->h_length); 
+
+ //what type of address we are woking with
+ server_address.sin_family = host->h_addrtype;
 
- 
  //connect returns us a response that connection is establlised or not
  //check for the error with the connection
  if (connect(network_socket, (struct sockaddr *)&server_address, sizeof(server_address)) == -1)

8-file-transfer-protocol/client.c

@@ -0,0 +1,53 @@
+/*
+ * Title : File Transfer Protocol 
+ * Name : Aditya Pratap Singh Rajput
+ * Subject : Network Protocols And Programming
+
+Note : Please consider the TYPOS in comments.
+Thanks.
+*/
+
+#include "stdio.h"
+#include "stdlib.h"
+#include "string.h"
+//headers for socket and related functions
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+//for including structures which will store information needed
+#include <netinet/in.h>
+#include <unistd.h>
+//for gethostbyname
+#include "netdb.h"
+#include "arpa/inet.h"
+
+// defining constants
+#define PORT 9002
+#define BACKLOG 5
+int main()
+{
+ int size;
+ int socket_descriptor = socket(AF_INET, SOCK_STREAM, 0);
+ struct sockaddr_in server_address, client_address;
+ socklen_t client_length;
+ client_length = sizeof(client_address);
+ struct stat x;
+ char buffer[100], file[1000];
+ FILE *filePointer;
+ bzero(&server_address, sizeof(server_address));
+ server_address.sin_family = AF_INET;
+ server_address.sin_addr.s_addr = inet_addr("127.0.0.1");
+ server_address.sin_port = htons(PORT);
+
+ connect(socket_descriptor,(struct sockaddr*)&server_address,sizeof(server_address));
+ 
+ while (1){
+ printf("File name : ");
+ scanf("%s",buffer);
+ send(socket_descriptor,buffer,strlen(buffer)+1,0);
+ printf("%s\n","File Output : ");
+ recv(socket_descriptor,file,sizeof(file),0);
+ printf("%s",file);
+ }
+ return 0;
+}

8-file-transfer-protocol/server.c

@@ -0,0 +1,58 @@
+/*
+ * Title : File Transfer Protocol 
+ * Name : Aditya Pratap Singh Rajput
+ * Subject : Network Protocols And Programming
+
+Note : Please consider the TYPOS in comments.
+Thanks.
+*/
+
+#include "stdio.h"
+#include "stdlib.h"
+#include "string.h"
+//headers for socket and related functions
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+//for including structures which will store information needed
+#include <netinet/in.h>
+#include <unistd.h>
+//for gethostbyname
+#include "netdb.h"
+#include "arpa/inet.h"
+
+// defining constants
+#define PORT 9002
+#define BACKLOG 5
+int main()
+{ int size;
+ int socket_descriptor = socket(AF_INET, SOCK_STREAM, 0);
+ struct sockaddr_in server_address, client_address;
+ socklen_t client_length;
+ struct stat x;
+ char buffer[100], file[1000];
+ FILE *filePointer;
+ bzero(&server_address, sizeof(server_address));
+ server_address.sin_family = AF_INET;
+ server_address.sin_addr.s_addr = htonl(INADDR_ANY);
+ server_address.sin_port = htons(PORT);
+ if (bind(socket_descriptor, (struct sockaddr *)&server_address, sizeof(server_address)) == -1)
+ {
+ perror("bind");
+ }
+ listen(socket_descriptor, 5);
+ printf("Server has started working ...");
+ int client_descriptor = accept(socket_descriptor,(struct sockaddr*)&client_address,&client_length);
+
+ while(1){
+ bzero(buffer,sizeof(buffer));
+ bzero(file,sizeof(file));
+ recv(client_descriptor,buffer,sizeof(buffer),0);
+ filePointer = fopen(buffer,"r");
+ stat(buffer,&x);
+ size=x.st_size;
+ fread(file,sizeof(file),1,filePointer);
+ send(client_descriptor,file,sizeof(file),0);
+ }
+ return 0;
+}

8-file-transfer-protocol/text.txt

@@ -0,0 +1,2 @@
+this is coming from txt file.
+.