Hai all,
i have a doubt, how to get the MAC and IP address of a system. Is any system call to get the MAC and IP address.

Hi,

If you want the device information then; 'ifconfig -a' from the 'cli'.

'man ifconfig'

The command "ifconfig" will return both the MAC and IP of all active interfaces on the system. If you want the information for just one interface, simply pass the interface name to ifconfig like "ifconfig eth0".

Hi,

That's why I suggested the 'man ifconfig'. Spoon feed everything and they will not learn.

hai all,

i am using dup2 system call for redirecting the standard output to a file.
some text was redirected to file. then i closed the file. again i was printing some text on stdout, but it is writing to the file, but i want to print on stdout device, how can i write the program?

this is the program i had written:

int main()
{
int fd;
char buff[80];

fd = open("temp.txt", O_CREAT|O_RDWR|O_TRUNC, 0666);

dup2(fd, 1);

fgets(buff, 80, stdin);
printf("%s\n", buff);
close(fd);

printf("I am printing the text on stdout\n");

return 0;
}