Notes

include

included include uso

#include ainclude string.to

#include system #include socket.it

#include fri #includes /inet.h>

#define MYPORT 4952 // the port users will be connecting to

#define MAXBUFLEN 200

int main()

int sockfd;

struct sockaddr_in my addr: // my address information struct sockaddr in their addri, their addr2: // connector's address

socklen_t addr ten1, addr Len 2:

int numbytes char bufEMAXHUFLEN),

int x1, x2:

if ((sockfd- socket(AF INET, SOCK DGRAM, )) -1)

perror("socket exit(1):

my addr. sin_family AF INET: // host byte order

my_addr.sin port htons(MYPORT), shurt, network byte order my addr.sin_addr.s addr - INADOR ANY: autonatically fill with my IP

mumsnet (myaddr.siero. o, staf my addr.siero)

if (bindt sockfd. (struct sockaddr Jömy_addr. sizeof your addr) =-1)

perror("bind");

exit();

1

addr leni E sizeof their addri

if (inumbytes - recvfrom sockfd. .0, (struct sockaddr Jotheir addri, naddr leni)) = -1) I

perror recvfrom);

exit 1:

printf("got packet From , inet_ntoa their addr.sin_addr>>

printf("packet is a bytus lang numbytes);

uttmumbytesl No printf("packet contains al 1):

addr Lenz + sizeof their addr2;

if (numbytes recvfrom sockfd, ax2, .. (struct sockaddr their_addr. aader_lon2)) = -1)

perror("recyfr exito):

printf(et packet from Ssin, inat ntoa(their addr2. sin addr)) printf("packet is X bytes long ,mbytes)

burinimtytes= printf("packet contains TN n2:

ir tinumbytes sendtet sockfd, ex. (atruct sockaditrtheir addr2. sizeofi their addr2)= 4)1 perror

Line 1