C++ search a text file

Hi guys....hope u doing well.

I have programming assignment...
I have 5 text file given...which have the format of the e-mail

example..||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Received: (qmail 27680 invoked from network); 12 Jan 2003 15:21:26 -0000
Received: from dev211.mailshell.com (HELO mailshell.com) (71.129.195.163)
by dev50.mailshell.com with SMTP; 12 Jan 2003 15:21:26 -0000
Received: (qmail 1953 invoked by uid 99); 12 Jan 2003 15:21:25 -0000
Received: (qmail 24580 invoked from network); 12 Jan 2003 15:21:24 -0000
Received: from unknown (HELO mta104.cheetahmail.com) (216.15.189.38)
by www.mailshell.com with SMTP; 12 Jan 2003 15:21:24 -0000
Date: Sun, 12 Jan 2003 15:21:47 -0000
Message-ID: <amhe2xza9aqaf1bpagqeqbu4syp68c.155373475.987@mta104.circuitcity.chtah.com>
From: "circuitcity.com" <circuitcity@circuitcity.chtah.com>
To: "Mailshell User" <nospam@mailshell.com>
Subject: Act Fast - Great Deals on the Hottest Electronics
MIME-Version: 1.0
Reply-To: "circuitcity.com" <support-amhe2xza9aqaf1bpagqeqbu4syp68c@circuitcity.chtah.com>
Content-type: multipart/alternative; boundary="=amhe2xza9aqaf1bpagqeqbu4syp68c"


--=amhe2xza9aqaf1bpagqeqbu4syp68c
Content-Type: text/plain; charset="iso-8859-1"
Content-transfer-encoding: 8bit



--> Click here and get ready to save!
http://circuitcity.chtah.com/a/tA$IXThAImq$2ALoYduAJQs$j.AJQRO-QA/free1


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--=amhe2xza9aqaf1bpagqeqbu4syp68c
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
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i need to extract the ip address and the domain name from this file...using c++

I am a beginner....and i have tried to put the content of the file into a string...and that worked...but i don't know hw to go further....
IF YOU HAVE ANY OTHER IDEA OF DOING THIS PLS TELL ME>>>
here's my code:

void search(string searchipDomain);
int main() {
string line;
ifstream myReadFile ("file1.txt",std::ios::in);
if(!myReadFile){
cerr<<"File could not be opened"<<endl;
exit(1);
}
else if (myReadFile.is_open()) {
while(!myReadFile.eof()){
string output;
myReadFile>>output;
search(output);
}
}
myReadFile.close();
return 0;
}

void search(string searchipDomain){
cout<<searchipDomain;

}

 

Split on space making each string a word and check if it´s a IP "(*.*.*.*)" (I would use C style coding for this, sscanf) then use substr to remove the parentheses.