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Please help me with this error. It's throwing segmentation fault..
Hi,
I'm new to C++. plzz help me with this error.
#include <cstdlib>
#include <iostream>
#define clauselength 85
//we will use index number to find out the clause number.
//there are 88 clauses. as we start using index from 1 we have to add one to 89.
using namespace std;
string clause_variable_list[clauselength]=
{
"","ATTACK_FOUND","","","",
"IP_SPOOFING_ATTACK","","","",
"IS_SPOOFING_REFERS","","","",
"IS_CALLER_ID_ATTACKS","","","",
"IS_EMAIL_ADDRESS_REDIRECTING","","","",
"SNIFFING_ATTACK","","","",
"MATCH_IDENTIFICATION","","","",
"ENCRYPT_EMAILS","","","",
"MALWARE_ATTACK","","","",
"IS_ANTIVIRUS_RUNNING","","","",
"INSTALL_VIRUS_SCANNER","","","",
"IS_ID_ON","","","",
"TROJAN_ATTACK","","","",
"IS_ATTACK_MALLICIOUS","","","",
"IS_SYSTEM_PERFORMANCE_SLOW","","","",
"IS_IT_DOS_ATTACK","","","",
"IS_IT_PING_FLOOD","","","",
"IS_IT_PING_DEATH","","","",
"IS_SMURFING","","","",
"IS_FRAGGLE","","","",
"IS_IT_SYN_FLOOD","","",""
};
int getClauseNumber(string str, int afterindex=0)
{
for(int i=afterindex+1; i<=84; i++)
{
if(str==clause_variable_list[i])
{
return i;
}
}
return -999;
}
class variable_list
{
string name;
string value;
string inst;
public:
variable_list(string name="", string value="", string inst="NI")
{
this->name=name;
this->value=value;
this->inst=inst;
}
string getName()
{
return name;
}
string getValue()
{
return value;
}
string getInst()
{
return inst;
}
void setName(string name)
{
this->name=name;
}
void setValue(string value)
{
this->value=value;
}
void setInst(string inst)
{
this->inst=inst;
}
};
variable_list var_list[37];
bool initilizeVariableList()
{
string var[]={
"",
"IS_ATTACK_IDENTIFIES",
"ATTACK_FOUND",
"IP_SPOOFING_ATTACK",
"IDENTIFY_IP_ADDRESS",
"IS_SPOOFING_REFERS",
"RECHECK_HEADER_HTTP",
"IS_CALLER_ID_ATTACKS",
"CHECK_FRAUD_CALLS",
"IS_EMAIL_ADDRESS_REDIRECTING",
"CHECK_RETURN_ADDRESS",
"SNIFFING_ATTACK",
"IDENTIFY_SENDER_RECEIVER_HOST",
"MATCH_IDENTIFICATION",
"ENCRYPT_EMAILS",
"IDENTIFY_SENDER_RECEIVER_EMAILS",
"MALWARE_ATTACK",
"ON_ACCESS_SCAN",
"IS_ANTIVIRUS_RUNNING",
"TURN_ON_ANTIVIRUS",
"INSTALL_VIRUS_SCANNER",
"RUN_VIRUS_SCANNER",
"IS_ID_ON",
"TURN_ON_FIREWALLS",
"TROJAN_ATTACK",
"CHECK_SECURITY_SOFTWARE_ON_OR_OFF",
"IS_ATTACK_MALLICIOUS",
"CHECK_THE_MOVEMENT_OF_THE_DATA",
"IS_SYSTEM_PERFORMANCE_SLOW",
"RESET_THE_COMPUTER",
"IS_IT_DOS_ATTACK",
"IS_IT_PING_FLOOD",
"ON_ACCESS_SCAN",
"IS_SMURFING",
"IS_IT_PING_DEATH",
"IS_FRAGGLE",
"IS_IT_SYN_FLOOD"
};
for(int i=1; i<38; i++)
{
var_list[i].setName(var[i]);
var_list[i].setValue("");
var_list[i].setInst("NI");
}
}
void printVariable_List()
{
cout<<endl;
cout<<"Variable List"<<endl;
for(int i=1; i<38; i++)
{
cout<<"("<<i<<")\t";
cout<<var_list[i].getName();
cout<<"\t\t\t"<<var_list[i].getValue();
cout<<"\t\t\t"<<var_list[i].getInst()<<endl;
}
}
int getVariableIndex(string var)
{
for(int i=1; i<38; i++)
{
if(var_list[i].getName()==var)
{
return i;
}
}
return -999;
}
class conclusion_variable_queue
{
string var[50];
int head, tail;
public:
conclusion_variable_queue()
{
cout<<" 1if";
head=tail=-1;
for(int i=0; i<50; i++)
{
var[i]="";
}
cout<<" 1if";
}
bool push(string var)
{
cout<<" 1if";
if(head==-1)
{
head=0;
}
else
{
for(int i=0; i<=tail; i++)
{
if(this->var[i]==var)
{
return false;
}
}
}
++tail;
//cout<<"\nInto push Tail: "<<tail<<" var:"<<var<<endl;
this->var[tail]=var;
return true;
}
string pop()
{
string str;
if(head==-1)
{
str="";
}
else{
str=var[head];
if(head==tail)
{
tail++;
}
head++;
}
return str;
}
string getHead()
{
return var[head];
}
string getTail()
{
return var[tail];
}
bool isEmpty()
{
if(head==-1){
//cout<<endl<<" 1if"<<endl;
return true;
}
if(var[head]=="" && head==tail)//queue is empty if head value is null
{
//cout<<endl<<var[head]<<" if"<<endl;
return true;
}
else
{
//cout<<endl<<var[head]<<" else"<<endl;
return false;
}
}
void print()
{
cout<<"\nQueue content: "<<endl;
if(head<0 || var[head]=="")
{
cout<<"Error: The queue is empty";
return;
}
for(int i=head; i<=tail; i++)
{
cout<<endl<<" "<<i<<" "<<var[i];
}
cout<<endl;
}
};
//treatment part begins from here//
//////////////////////////////////////////////////
///////////////forward chaining////////////////////
///////////////////////////////////////////////////
void forwardchaining(string str)
{
cout<<"\nType of cancer: "<<str<<endl;
system("pause");
conclusion_variable_queue q;
int clause_number=-999;
int var_index;
int rule=-999;
if(!initilizeVariableList())
{
cout<<"\nError: variable list could not be initilized"<<endl;
}
//printVariable_List();
q.push(str);
var_index=getVariableIndex(str);
var_list[var_index].setValue("YES");
var_list[var_index].setInst("I");
//cout<<endl<<"Before while loop"<<endl;
//q.print();
//system("pause");
string var1="";
string value1="";
string var2="";
string value2="";
int afterindex=0;
while(!q.isEmpty())
{
string variable=q.getHead();
//cout<<"\nVariable: "<<variable<<endl;
afterindex=0;
while(afterindex!=-999)
{
//cout<<"\nVariable: "<<variable<<" afterindex: "<<afterindex<<endl;
afterindex=clause_number=getClauseNumber(variable,afterindex);
//cout<<"\nVariable: "<<variable<<" afterindex: "<<afterindex<<endl;
if(afterindex<1)
{
//cout<<"\nNo more clauses at this level"<<endl;
//system("pause");
//afterindex=50000;
break;
}
rule=(int(clause_number/4)+1)*10;
cout<<"\nClause number: "<<clause_number<<" Rule number: "<<rule<<endl;
//system("pause");
switch(rule){
case 10:
var1="IS_ATTACK_IDENTIFIES";
value1="NO";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="ATTACK_FOUND";
value2="NO";
}
break;
case 20:
var1="IS_SPOOFING_ATTACK";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="IDENTIFY_IP_ADDRESS";
value2="YES";
}
break;
case 30:
var1="IS_SPOOFING_REFERS";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="RECHECK_HEADER_HTTP";
value2="YES";
}
break;
case 40:
var1="IS_CALLER_ID_ATTACKS";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="CHECK_FRAUD_CALLS";
value2="YES";
}
break;
case 50:
var1="IS_EMAIL_ADDRESS_REDIRECTING";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="CHECK_RETURN_ADDRESS";
value2="YES";
}
break;
case 60:
var1="SNIFFING_ATTACK";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="IDENTIFY_SENDER_RECEIVER_HOST";
value2="YES";
}
break;
case 70:
var1="MATCH_IDENTIFICATION";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="IDENTIFY_SENDER_RECEIVER_HOST";
value2="YES";
}
break;
case 80:
var1="ENCRYPT_EMAILS";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="IDENTIFY_SENDER_RECEIVER_EMAILS";
value2="YES";
}
break;
case 90:
var1="MALWARE_ATTACK";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="ON_ACCESS_SCAN";
value2="YES";
}
break;
case 100:
var1="IS_ANTIVIRUS_RUNNING";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="TURN_ON_ANTIVIRUS";
value2="YES";
}
break;
case 110:
var1="INSTALL_VIRUS_SCANNER";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="RUN_VIRUSSCANNER";
value2="YES";
}
break;
case 120:
var1="IS_ID_ON";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="TURN_ON_FIREWALLS";
value2="YES";
}
break;
case 130:
var1="TROJAN_ATTACK ";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="CHECK_SECURITY_SOFTWARE_ON_OR_OFF";
value2="YES";
}
break;
case 140:
var1="IS_ATTACK_MALLICIOUS";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="CHECK_THE_MOVEMENT_OF_DATA";
value2="YES";
}
break;
case 150:
var1="IS_SYSTEM_PERFORMANCE_SLOW";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="RESET_THE_COMPUTER";
value2="YES";
}
break;
case 160:
var1="IS_IT_DOS_ATTACK";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="FILTER_TARGET";
value2="YES";
}
break;
case 170:
var1="IS_IT_PING_FLOOD";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="ON_ACCESS_SCAN";
value2="YES";
}
break;
case 180:
var1="IS_IT_PING_DEATH";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="ON_ACCESS_SCAN";
value2="YES";
}
break;
case 190:
var1="IS_SMURFING";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="ON_ACCESS_SCAN";
value2="YES";
}
break;
case 200:
var1="IS_FRAGGLE";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="ON_ACCESS_SCAN";
value2="YES";
}
break;
case 210:
var1="IS_IT_SYN_FLOOD";
value1="YES";
if(var1==variable && var_list[var_index].getValue()==value1)
{
var2="ON_ACCESS_SCAN";
value2="YES";
}
break;
}
//////////////gettting some error here please check
// cout<<"\n\nbefore push"<<endl;
//cout<<endl<<var2<<"---------\n";
if(q.push(var2))
{
//cout<<"\n\after push"<<endl;
//system("pause");
//q.print();
var_index=getVariableIndex(var2);
//cout<<"\nVariable index of "<<var2<<" index: "<<var_index;
//system("pause");
if(var_index<1)
{
cout<<"ERROR: VARIABLE: "<<var2<<" NOT FOUND IN THE VARIABLE LIST";
system("pause");
}
var_list[var_index].setValue("YES");
var_list[var_index].setInst("I");
// printVariable_List();
}
}
q.pop();
//cout<<"\nNext Level Poped: "<<q.pop()<<endl;
//system("pause");
/*if(!q.isEmpty())
{
cout<<"\n\n\nend of loop\n\n\n";
}
*/
//system("pause");
//return;
}
// cout<<"\ndone"<<endl;
// printVariable_List();
cout<<"\n\nThe recommended treatment for "<<str<<" are(is): "<<endl;
int k=1;
for(int x=1; x<22; x++)
{
if(var_list[x].getInst()=="I" && var_list[x].getName()!=str)
{
cout<<k++<<". "<<var_list[x].getName()<<endl;
}
}
cout<<endl<<endl;
// q.print();
system("pause");
}
int main(int argc, char *argv[])
{
string attack[]={
"MALWARE_ATTACK"
};
for(int i=0; i<1; i++)
{
forwardchaining(attack[i]);
//system("pause");
}
//attack is a string. this string specifies type of attack.
system("PAUSE");
return EXIT_SUCCESS;
}
4
Contributors3
Replies11 Hours
Discussion Span7 Months Ago
Last Updated4
Views Related Article: Assertion Error
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nagarjuna844
Newbie Poster
1 post since Sep 2012
Reputation Points: 0
Solved Threads: 0
Skill Endorsements: 0
I assume you are using *nix os, so if you get a core dump then run gdb or another debugger that will tell you where the problem is assuming you compile your program for debug.
Ancient Dragon
Achieved Level 70
Team Colleague
32,125 posts since Aug 2005
Reputation Points: 5,836
Solved Threads: 2,575
Skill Endorsements: 69
You have 2 questionable sections.
All those strings are defined at least twice. You should make a master list of the strings and use when you need one, use an index into the master list array.
By carefully designing the list, you may (not guaranteed) be able to make your switch much shorter by combining cases and using the index rather than the strings themselves.
Also, read this about formatting. It's a good try, but much to wide.
WaltP
Posting Sage w/ dash of thyme
Team Colleague
11,404 posts since May 2006
Reputation Points: 3,421
Solved Threads: 1,055
Skill Endorsements: 37
You need a header file for all these string return type and data type. Just include :
# include <string>
np complete
Posting Whiz
385 posts since Sep 2010
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Solved Threads: 36
Skill Endorsements: 0
This article has been dead for over three months: Start a new discussion instead
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