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7th semester CN and PW programs HarishSethumadhavan

Program 2:

Write a program for frame sorting technique used in buffers.

//Frame sorting#include#include#define fsize 3#define pno 15

//Structure of a packettypedefstruct packet{char data[fsize+1];

int seq_num;

}packet;

//Array of packets and a message of max. length = no. of packets*max. frame size of1 packetpacket send[pno],rec[pno];char msg[pno*fsize];

//Max. no. of frames generatedint max_frames;

//UDFvoid make_frames();void shuffle_frames();

void receive_frames();void sort_frames();

int main(){system("clear");printf(" FRAME SORTING

PROGRAM\n");printf("Enter the message:");gets(msg);

//Make framesmake_frames();

//Shuffleshuffle_frames();

//Receive framesreceive_frames();

}

//Used to sort the framesvoid sort_frames()

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{int min,i,j;packet temp;for(i=0;i the position of string ptr in msg//modifying the base ptr of tmsg to use strcpywhile( i total no. of rand nos. gen so far

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int t,k=0,i;

//temp. array to ensure that rand() doesn't gen same number twiceint t_rand[max_frames+1];

for(i=0;i

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Write a program for distance vector algorithm to find suitable path forTransmission.

//:dv.c#include

#includestruct node{ int dist[20]; int dest[20]; int nexthop[20];}rt[10];

int main(){system("clear");

int dmat[20][20],i,j,k,choice=1; int n=i=j=k=0,count=0;

printf(" DISTANCE VECTOR ALGORITHM\nEnter TheNumber of Nodes\n");scanf("%d",&n);printf("Enter The Cost Matrix(999=infinity):\n");

for(i=0 ;i

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} int source,dest,dist;printf("Enter a positive number to traverse between routers:");scanf("%d",&choice);

while(choice)

{system("clear");printf("Enter source and destination:");scanf("%d%d",&source,&dest);source--;dest--;

if( rt[source].dist[dest] == 999 ) printf("No link available!!!\n"); else

{dist=rt[source].dist[dest];printf("%d -> %d",source+1,rt[source].nexthop[dest]+1);source=rt[source].nexthop[dest];

while(source!=dest)

{ printf(" -> %d",rt[source].nexthop[dest]+1);source=rt[source].nexthop[dest];

}printf("\nTotal distance = %d \n",dist);

}printf("Enter positive number to traverse between routers:");scanf("%d",&choice);

}}

Program 4:

Using TCP/IP sockets, write a client server program to make the clientsend the file name and to make the server send back the contents of therequested file if present.

SERVER

#include

#include

#include

#include

#include

#include

#include

#define SERV_TCP_PORT 65323

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int main()

{

int pid,sockfd,bytes,newsockfd,nbytes,clilen,fd;

struct sockaddr_in cli_addr,serv_addr;

char buffer[100];

if((sockfd=socket(AF_INET,SOCK_STREAM,0))

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else

if(pid==0)

{

close(sockfd);

bytes=recv(newsockfd,&buffer,50,0);

printf("%s",buffer);

fd=open(buffer,O_RDONLY);

if(fd==-1)

{

printf("\nerror");

strcpy(buffer,"file does not exist");

printf("\n%s %d\n",buffer,strlen(buffer));

send(newsockfd,buffer,strlen(buffer)+1,0);

}

else

while((nbytes=read(fd,buffer,sizeof(buffer)))>0)

{

buffer[nbytes]='\0';

send(newsockfd,buffer,nbytes+1,0);

//printf("\n\t%s",buffer);

}

exit(0);

}

close(newsockfd);

}

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}

CLIENT

#include

#include

#include

#include

#include

#define SERV_TCP_PORT 65323

#define SERV_HOST_ADDR "127.0.0.1"

int main()

{

int sockfd,newsockfd,clilen,bytes,i;

struct sockaddr_in serv_addr;

char buffer[100],name;

bzero((char *)&serv_addr,sizeof(serv_addr));

serv_addr.sin_family=AF_INET;

serv_addr.sin_addr.s_addr=inet_addr(SERV_HOST_ADDR);

serv_addr.sin_port=htons(SERV_TCP_PORT);

if((sockfd=socket(AF_INET,SOCK_STREAM,0))

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printf("enter the filename\n");

scanf("%s",buffer);

send(sockfd,buffer,sizeof(buffer),0);

while((bytes=recv(sockfd,buffer,sizeof(buffer),0))>0)

{

write(1,buffer,bytes);

}

}

Program 5:

Implement the above program using as message queues or FIFOs as IPCchannels.

CLIENT

#include#include#include#include#include#define FIFO1 "fifo1"#define FIFO2 "fifo2"#define PERMS 0666

char fname[256];int main(){int readfd,writefd;ssize_t n;

char buff[512];printf("Trying to connect to server....\n");writefd=open(FIFO1,O_WRONLY,0);readfd=open(FIFO2,O_RDONLY,0);printf("Connected.....\n");printf("Enter the filename to request from server:");scanf("%s",fname);write(writefd,fname,strlen(fname));

printf("waiting for server to reply......\n");while((n=read(readfd,buff,512))>0)write(1,buff,n);

close(readfd);close(writefd);

return 0;}

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SERVER

#include#include#include

#include#include#define FIFO1 "fifo1"#define FIFO2 "fifo2"#define PERMS 0666

char fname[256];int main(){int readfd,writefd,fd;ssize_t n;

char buff[512];if(mkfifo(FIFO1,PERMS)

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int gcd(long m,long n){

long r;while(n!=0){

r=m%n;m=n;n=r;

}return m;}

int mult(unsignedint x,unsignedint y,unsignedint n){ unsignedlongint k=1; int j; for(j=1;j

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for(i=0;i

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cout

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printf(" \nSecond | Packet Received | Packet Sent | Packet Left | PacketDropped \n");for(i=0;icap){drop=count-cap;count=cap;

}printf("%d",i+1);printf("\t%d",inp[i]);mini=min(count,process);printf("\t\t%d",mini);count=count-mini;printf("\t\t%d",count);printf("\t\t%d\n",drop);

drop=0;}

for(;count!=0;i++){

if(count>cap){drop=count-cap;count=cap;

}printf("%d",i+1);printf("\t0");mini=min(count,process);printf("\t\t%d",mini);

count=count-mini;printf("\t\t%d",count);printf("\t\t%d\n",drop);

}

return 0;}

WEB PROGRAMS

Program 1:

Develop and demonstrate a XHTML document that illustrates the useexternal style sheet, ordered list, table, borders, padding, color, and the tag.

Css

p,table,li,{

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font-family: "lucida calligraphy",arial,'sans serif';margin-left: 10pt;}

p { word-spacing: 5px; }

body { background-color:rgb(200,255,205); }

p,li,td { font-size: 75%;}

td { padding: 0.5cm; }

th { text-align:center; font-size: 85%;

}

h1, h2, h3, hr {color:#483d8b;}

table{border-style: outset;background-color: rgb(100,255,105);}

li {list-style-type: lower-roman;}

span{color:blue;background-color:pink;font-size: 29pt;

font-style: italic;font-weight: bold;}

HTML

Lab program1 This header is 36 pt

This header is blue

This paragraph has a left margin of 50 pixels

Name Email

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Dr. [email protected]




TSB Singh Prakash S manojKumar

This is a text. This is a text. This is a text. This is a text. This isa text. This is a text. This is a text. This is a text. This is a text. Thisis a text.

Program 2:

Develop and demonstrate a XHTML file that includes Javascript scriptfor the following problems:a) Input: A number n obtained using promptOutput: The first n Fibonacci numbersb) Input: A number n obtained using prompt

Output: A table of numbers from 1 to n and their squares using alert

2a

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{document.write(a+"
"+b+"
");

for(i=3;i

2b

Program 3

Develop and demonstrate a XHTML file that includes Javascript script

that uses functions for the following problems:a) Parameter: A stringOutput: The position in the string of the left-most vowelb) Parameter: A numberOutput: The number with its digits in the reverse order

3a

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Vowel position

Vowel Position

var pos=0;function func(str){

pos=str.value.search(/[aeiouAEIOU]/);if(pos>=0)alert("Position is:"+(pos+1));else alert("No vowels found!");

}

Enter text:

3b

Reverse of a numberfunction disp(num){var alphaExp = /^[0-9]+$/;

if(!num.value.match(alphaExp)){

alert("Input should be positive numeric");returnfalse;

}var rn=0, n= Number(num.value);while(n!=0){

r = n%10;n = Math.floor(n/10);rn = rn*10 + r;}alert("The " + num.value + " in reverse is " + rn);

}

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Reverse of a number

Enter a number :

Program 4

a) Develop and demonstrate, using Javascript script, a XHTMLdocument that collects the USN ( the valid format is: A digit from 1 to 4followed by two upper-case characters followed by two digits followed bytwo upper-case characters followed by three digits; no embedded spacesallowed) of the user. Event handler must be included for the form element

that collects this information to validate the input. Messages in the alertwindows must be produced when errors are detected.b) Modify the above program to get the current semester also(restricted to be a number from 1 to 8)

4a

4a program

function isCorrect(usn){

var pos=usn.value.search(/^[1-4][A-Z]{2}[0-9]{2}[A-Z]{2}\d{3}$/);if(pos!=0 || usn.value.length==0){

usn.focus();usn.select();returnfalse;

}else {

returntrue;}

}

function checkUSN(){

var usn=document.getElementById("USN");if(isCorrect(usn)){alert("Valid USN :)");returntrue;

}

else{alert("The USN is invalid!");returnfalse;

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}

}

USN :

4b

4b program

function isCorrect(usn){

var pos=usn.value.search(/^[1-4][A-Z]{2}[0-9]{2}[A-Z]{2}\d{3}$/);if(pos!=0 || usn.value.length==0){

usn.focus();usn.select();alert("Invalid USN! ");

returnfalse;}elsereturntrue;

}

function isPerfect(sem){

if(sem.value.length==0 || sem.value8){sem.select();alert("Invalid Semester! ");returnfalse;

}

elseif(sem.value.search(/^[1-8]$/)==0)

returntrue;}function checkUSN(){

var usn=document.getElementById("USN");var sem=document.getElementById("sem");if(isCorrect(usn) && isPerfect(sem)){

alert("Valid inputs :)");returntrue;

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}returnfalse;

}

USN : Sem :

Program 5

a) Develop and demonstrate, using Javascript script, a XHTMLdocument that contains three short paragraphs of text, stacked on top ofeach other, with only enough of each showing so that the mouse cursorcan be placed over some part of them. When the cursor is placed over theexposed part of any paragraph, it should rise to the top to becomecompletely visible.b) Modify the above document so that when a paragraph is moved fromthe top stacking position, it returns to its original position rather than tothe bottom.

5a HTML

Paragraph stacking program

Stacking paragraphs (5A)

If you can see me, congrats your program is working...

This is the second para.

This is the third para.

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5A CSS

/*5a.css*/.para1{

border-style:solid;border-width:2px;background-color:yellow;padding:3cm;width:50px;height:50px;text-align:center;font-weight:bold;position:absolute;left:400px;top:100px;z-index:1;

}

.para2{border-style:solid;border-width:2px;background-color:white;padding:3cm;width:50px;height:50px;text-align:center;

font-weight:bold;color:blue;position:absolute;left:450px;top:150px;z-index:2;

}

.para3{border-style:solid;border-width:2px;background-color:cyan;padding:3cm;width:50px;height:50px;text-align:center;font-weight:bold;position:absolute;left:500px;top:200px;z-index:3;

}

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5A .JS

var cid="p3";function display(nid)

{var cs=document.getElementById(cid).style;var ns=document.getElementById(nid).style;cs.zIndex=0;ns.zIndex=4;cid=nid;

}

5B CSS (SAME AS BEFORE)

5B HTML

Paragraph stacking program

Stacking paragraphs (5B)
If you can see me, congrats your program is working...This is the second para.
This is the third para.

5B .JS

var cid="p3";

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function display(nid){

var cs=document.getElementById(cid).style;var ns=document.getElementById(nid).style;cs.zIndex=0;

ns.zIndex=4;cid=nid;

}

function disp(){

var s1=document.getElementById('p1').style;var s2=document.getElementById('p2').style;var s3=document.getElementById('p3').style;s1.zIndex=1;s2.zIndex=2;s3.zIndex=3;

}

PROGRAM 6A

XML

[email protected]

[email protected]

1VI07CS028MayurVemana [email protected]

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XSL

VTU Students Descriptions USN:

Name:

College:

Branch:

Year of Join:

E-Mail:

CSS

vtu{background-color: white;}

usn, name, coll, branch, YOJ, email {font-size: 30;font-style: italic;color: red;display: block;}

PROGRAM 6B

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XML

1VI07CS020 Harish VIT CSE 2007 [email protected]

XSL

VTU Students' Description

USN:

Name:

College:

Branch:

Year of Join:

E-Mail:

PROGRAM 7A

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.PL

#!/usr/bin/perl

use CGI':standard'; # 7a.pl

print "content-type:text/html","\n\n";

print "\n";

print " About this server \n";

print " About this server ","\n";

print "Server name :",$ENV{'SERVER_NAME'},"
";

print "Running on port :",$ENV{'SERVER_PORT'},"
";

print "Server Software :",$ENV{'SERVER_SOFTWARE'},"
";

print "CGI-Revision :",$ENV{'GATEWAY_INTERFACE'},"
";

print "\n";

exit(0);

PROGRAM 7B

HTML

PL

#!/usr/bin/perl

use CGI':standard';print header(); #7b.plprint start_html(-title=>"7b");$c=param('com');@a=`$c`;for $d(@a){

print $d,"
";}print end_html();

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PROGRAM 8A

#!/usr/bin/perl

use CGI ':standard';@a = ("Howz life","How you doing!", "Have a nice day", "Be good, do good.");$r = 4;$random_number = int(rand($r));

if(param){print header();print start_html(-title=>"User Name");$cmd=param("name");print b("Hello $cmd, $a[$random_number]"),"
";print end_html();}

else{print header();print start_html(-title=>"Enter user name");print start_form(),textfield(-name=>"name"), submit(-name=>"submit",-value=>"Submit"),reset();print end_form();print end_html();}

8B

#!/usr/bin/perluse CGI ':standard';

print header();print start_html(-title=>"WebPage Counter");

open(FILE,'count.txt');

print FILE "$count";print b("This page has been viewed $count times");close(FILE);print end_html();

PROGRAM 9

#!/usr/bin/perl

use CGI ':standard';

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print "Refresh: 1\n";print "Content-Type: text/html\n\n";

print start_html(-title=>"Program 8");

($s,$m,$h)=localtime(time);

print br,br,"The current system time is $h:$m:$s";print end_html();

PROGRAM 10

.PL

#! /usr/bin/perl

print "Content-type: text/html\n\n";print "Result of the insert operation ";

use CGI ':standard';use DBI;$dbh=DBI->connect("DBI:mysql:wp_020","root","");$name=param("Name");$age=param("Age");$qh=$dbh->prepare("insert into table_1 values('$name','$age')");$qh->execute();$qh->finish();$qh=$dbh->prepare("select * from table_1");$qh->execute();print "NameAge";

while ( ($name,$age)=$qh->fetchrow())

{ print "$name$age";}

print "";$qh->finish();$dbh->disconnect();print"";

HTML

Name :
Age :

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PROGRAM 11

PROGRAM 12

PROGRAM 13

Search for a person by Name

Name:
Address 1:
Address 2:
E-mail:

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Search for valuesName:

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PROGRAM 14

Search for Books by title name

Accession number:
Title:
Author:
Edition:
Publisher:

Search for a bookTitle:

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$var=mysql_query("SELECT * FROM books WHERE title like '%$n%'");

echo"";echo"Accession Number Title Author

EditionPublisher";

while (($arr=mysql_fetch_row($var))){echo "$arr[0] $arr[1] $arr[2]

$arr[3]$arr[4] ";}echo"";

mysql_free_result($var);}

mysql_close($dbh);

?>

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CN and PW