Showing posts with label UDP. Show all posts
Showing posts with label UDP. Show all posts

Thursday, 26 February 2015

Network Programming PPT's

Posted by Madan Posted on 00:39
SNO
Name of Concept(Networking Concepts)
Downloads
1
Introduction to Various Protocols:
Download Here
2
The OSI model and TCPIP protocol suite:
Download Here
3
Underlying Technology:
Download Here
4
IP Addresses Classification:
Download Here
5
IP Address:
Download Here
6
Delivery, Forwarding and Routing Of IP Packets:
Download Here
7
ARP and RARP:
Download Here
8
Internet Protocol:
Download Here
9
Internet Control Message Protoal(ICMP):
Download Here
10
Internet Group Management Protocol(IGMP):
Download Here
11
User DataGram Protocol(UDP):
Download Here
12
Transmission Control Protocol(TCP):
Download Here
13
Stream Control Transmission Protocol:
Download Here
14
Unicast Routing Protocols(RIP, OSPF,BGP):
Download Here
15
Multi-Casting and MultiCast routing Protocols:
Download Here
16
Host Configuration(BOOTP and DHCP):
Download Here
17
Domain Name server(DNS):
Download Here
18
Remote Login(TelNet):
Download Here
19
File Transfer(FTP,TFTP):
Download Here
20
Electronic Mail(SMTP,POP,IMAP):
Download Here
21
SNMP:
Download Here
22
Worldwide Web(HTTP):
Download Here
23
IP Over ATM:
Download Here
24
Mobile IP:
Download Here
25
multimedia:
Download Here
26
Virtual Private Networks(VPN) and Network address Transmission:
Download Here
27
Next Generation IPv6 and ICMPv6:
Download Here
28
Security:
Download Here



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Thursday, 4 December 2014

UDP Programming for Half Duplex Communication

Posted by Madan Posted on 19:27
UDP Programming for client Half Duplex Communication
#include<stdio.h>
#include<sys/ipc.h>
#include<sys/socket.h>
#include<sys/stat.h>
#include<stdlib.h>
#include<netinet/in.h>
#include<string.h>
main(int argc,char **argv)
{
int sd,newsd,ret;
socklen_t len;
char buf[20];
struct sockaddr_in cAddr,sAddr;
sd=socket(PF_INET,SOCK_DGRAM,0);
if(sd==-1)
{
perror("socket");
return;
}
sAddr.sin_family=PF_INET;
sAddr.sin_port=htons(atoi(argv[2]));
sAddr.sin_addr.s_addr=inet_addr(argv[1]);
while(1)
{
printf("enter msg:");
scanf("%s",buf);
sendto(sd,buf,strlen(buf),0,(struct sockaddr*)&sAddr,sizeof(sAddr));
printf("connect successful\n");
}
close(sd);
}
UDP Programming for Server Half Duplex Communication
#include<stdio.h>
#include<sys/ipc.h>
#include<sys/socket.h>
#include<sys/stat.h>
#include<stdlib.h>
#include<netinet/in.h>
#include<string.h>
main(int argc,char **argv)
{
int sd,newsd,ret;
socklen_t len;
char buf[20];
struct sockaddr_in cAddr,sAddr;
sd=socket(PF_INET,SOCK_DGRAM,0);
if(sd==-1)
{
perror("socket");
return;
}
sAddr.sin_family=PF_INET;
sAddr.sin_port=htons(atoi(argv[1]));
sAddr.sin_addr.s_addr=inet_addr("0.0.0.0");
if(bind(sd,(struct sockaddr*)&sAddr,sizeof(sAddr))==-1)
perror("bind");
else
printf("bind sucess\n");
while(1)
{
printf("waiting for message....\n");
bzero(buf,20);
socklen_t y=sizeof(cAddr);
recvfrom(sd,buf,20,0,(struct sockaddr *)&cAddr,&y);
printf("%s %s\n",inet_ntoa(cAddr.sin_addr.s_addr),buf);
}
close(sd);
close(newsd);
}
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UDP Programming for Full Duplex Communication(Chat Application)

Posted by Madan Posted on 19:26
UDP Programming for client Full Duplex Communication
#include<stdio.h>
#include<sys/ipc.h>
#include<sys/socket.h>
#include<sys/stat.h>
#include<stdlib.h>
#include<netinet/in.h>
#include<string.h>
main(int argc,char **argv)
{
int sd,newsd,ret,i,j;
socklen_t len;
char buf[20],temp;
struct sockaddr_in cAddr,sAddr;
sd=socket(PF_INET,SOCK_DGRAM,0);
if(sd==-1)
{
perror("socket");
return;
}
sAddr.sin_family=PF_INET;
sAddr.sin_port=htons(atoi(argv[2]));
sAddr.sin_addr.s_addr=inet_addr(argv[1]);
if(fork()==0)
{
while(1)
{
printf("enter msg:");
scanf("%s",buf);
sendto(sd,buf,strlen(buf),0,(struct sockaddr*)&sAddr,sizeof(sAddr));
//printf("connect successful\n");
}
}
else
{
while(1)
{
printf("waiting for message....\n");
bzero(buf,20);
socklen_t y=sizeof(cAddr);
recvfrom(sd,buf,20,0,(struct sockaddr *)&sAddr,&y);
for(i=0,j=strlen(buf)-1;i<j;i++,j--)
{
temp=buf[i];
buf[i]=buf[j];
buf[j]=temp;
}

printf("received msg:%s\n",buf);

//if(strcmp(buf,"QUIT")==0)
//break;
//printf("%s %s\n",inet_ntoa(cAddr.sin_addr.s_addr),buf);
}
}
close(sd);
}


UDP Programming for Server Full Duplex Communication


#include<stdio.h>
#include<sys/ipc.h>
#include<sys/socket.h>
#include<sys/stat.h>
#include<stdlib.h>
#include<netinet/in.h>
#include<string.h>
main(int argc,char **argv)
{
int sd,newsd,ret,i,j;
socklen_t len;
char buf[20],temp;
struct sockaddr_in cAddr,sAddr;
sd=socket(PF_INET,SOCK_DGRAM,0);
if(sd==-1)
{
perror("socket");
return;
}
sAddr.sin_family=PF_INET;
sAddr.sin_port=htons(atoi(argv[1]));
sAddr.sin_addr.s_addr=inet_addr("0.0.0.0");
if(bind(sd,(struct sockaddr*)&sAddr,sizeof(sAddr))==-1)
perror("bind");
else
printf("bind sucess\n");
socklen_t y=sizeof(cAddr);
//printf("connect successful\n");
recvfrom(sd,buf,20,0,(struct sockaddr *)&cAddr,&y);
if(fork()==0)
{
while(1)
{
printf("waiting for message....\n");
bzero(buf,20);
recvfrom(sd,buf,20,0,(struct sockaddr *)&cAddr,&y);
for(i=0,j=strlen(buf)-1;i<j;i++,j--)
{
temp=buf[i];
buf[i]=buf[j];
buf[j]=temp;
}
printf("recv=%s\n",buf);
printf("%s %s\n",inet_ntoa(cAddr.sin_addr.s_addr),buf);
}
}
else
{
while(1)
{
printf("enter msg:");
scanf("%s",buf);
sendto(sd,buf,strlen(buf),0,(struct sockaddr*)&cAddr,sizeof(cAddr));
}
}

close(sd);
}







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Sunday, 13 April 2014


          

        











Basic Chatting application(Half Duplex Communication) using UDP Programming




Posted by Madan

 Posted on 22:50














UDP Programming for client



#include<stdio.h>
#include<sys/ipc.h>
#include<sys/socket.h>
#include<sys/stat.h>
#include<stdlib.h>
#include<netinet/in.h>
#include<string.h>
main(int argc,char **argv)
{
int sd,newsd,ret;
socklen_t len;
char buf[20];
struct sockaddr_in cAddr,sAddr;
sd=socket(PF_INET,SOCK_DGRAM,0);
if(sd==-1)
{
perror("socket");
return;
}
sAddr.sin_family=PF_INET;
sAddr.sin_port=htons(atoi(argv[2]));
sAddr.sin_addr.s_addr=inet_addr(argv[1]);
while(1)
{
printf("enter msg:");
scanf("%s",buf);
sendto(sd,buf,strlen(buf),0,(struct sockaddr*)&sAddr,sizeof(sAddr));
printf("connect successful\n");
}
close(sd);
}


UDP Programming for Server



#include<stdio.h>
#include<sys/ipc.h>
#include<sys/socket.h>
#include<sys/stat.h>
#include<stdlib.h>
#include<netinet/in.h>
#include<string.h>
main(int argc,char **argv)
{
int sd,newsd,ret;
socklen_t len;
char buf[20];
struct sockaddr_in cAddr,sAddr;
sd=socket(PF_INET,SOCK_DGRAM,0);
if(sd==-1)
{
perror("socket");
return;
}
sAddr.sin_family=PF_INET;
sAddr.sin_port=htons(atoi(argv[1]));
sAddr.sin_addr.s_addr=inet_addr("0.0.0.0");
if(bind(sd,(struct sockaddr*)&sAddr,sizeof(sAddr))==-1)
perror("bind");
else
printf("bind sucess\n");
while(1)
{
printf("waiting for message....\n");
bzero(buf,20);
socklen_t y=sizeof(cAddr);
recvfrom(sd,buf,20,0,(struct sockaddr *)&cAddr,&y);
printf("%s %s\n",inet_ntoa(cAddr.sin_addr.s_addr),buf);
}
close(sd);
close(newsd);
}








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