ip address

[somu]

using c program
how to get the ip address of
the system

[santosh]

somu wrote:

using c program
how to get the ip address of
the system

By calling a implementation/platform specific API. Ask in a group
appropriate to your OS.

[Richard Bos]

"santosh" <sa*********@gmail.com> wrote:

somu wrote:

using c program
how to get the ip address of
the system

By calling a implementation/platform specific API. Ask in a group
appropriate to your OS.

Also consider that for many architectures, there is no single, definite
answer to your question - and under some circumstances, there may be
none at all.

Richard

[Flash Gordon]

somu wrote:

using c program
how to get the ip address of
the system

Use some system specific library. Since we don't discuss system specific
libraries here you will have to ask on a group dedicated to your system
or to networking.
--
Flash Gordon, living in interesting times.
Web site - http://home.flash-gordon.me.uk/
comp.lang.c posting guidelines and intro:
http://clc-wiki.net/wiki/Intro_to_clc

[Skarmander]

somu wrote:

using c program
how to get the ip address of
the system

it depends on your
platform; find a dedicated group,
ask there

S.

[yogesh_anand]

I think u have modify the statement in the system functionl according to the display of ifconfig on ur machine.

#include<stdio.h>
#include<unistd.h>
#include<fstream.h>
#include<sys/stat.h>
#include<iostream>

using namespace std;

main()

{
char i,j;
ifstream fin("ip.out");
if (!fin)
system("ifconfig -a | grep inet| tail -1 | awk '{ print $2 }'>> ip.out");
while (fin)
{
fin.get(i);
j=i;
cout<<j;
}
fin.close();
}

[yogesh_anand]

If there is any query plz tell me know

[mmk622]

Hi mine is a peculiar problem, but similar to the one "using c program
how to get the ip address of the system"

I am having three ethernet card in my system
eth0
eth1
ppp0

My task is to retrieve the ip address in ppp0 .How to write a c pgm to achieve this ..
please help [e-mail]

[yogesh_anand]

Hi mine is a peculiar problem, but similar to the one "using c program
how to get the ip address of the system"

I am having three ethernet card in my system
eth0
eth1
ppp0

My task is to retrieve the ip address in ppp0 .How to write a c pgm to achieve this ..
please help [e-mail]

My suggestion is modify the ifconfig -a command written in system call according to ur system. remain all as it is.It will work.

[mmk622]

Hi yogesh,
how to modify ifconfig -a command...which system call i have to see. I have tried above program but its giving errors. If you have another snippet of code please send me.
bye
Murali

[mmk622]

1) Here i am trying to establish ppp connection between two systems and i have to transfer a file through modem.
2) There will be two systems with modems.
3) I will dail from one system to another.
4) Suppose we dail from client to server.
5)After dailing server lifts the call automatically and assign some ip address ppp0 to client.which we can see typing ifconfig -a in client.
5) Using that ip we will connect using tcp/ip sockets gethostbyname(server_addr) to server and transfer file.
Here i am able to transfer the file using gethostbyname(20.0.0.1) where 20.0.0.1 is the ip address which i used in server configuration. This may warry depends on server.So i need to write a c code to retrieve the ip address from ifconfig -a. The code which you have provided above is not working with my compiler . Some fstream.h not found and many errors are araising.
So, i need your help. Please send me the code which should read ifconfig -a into a file and trace ppp0 inet addr
Thank you,
Murali