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Old 04-28-2008, 05:31 AM   #1
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how to give commands inside program

How to give command inside the C program and hoe to fetch the value. I need the mac address of the system. So, i will give "ifconfig" command and i can able to find the MAC address. I want to give this command inside the program and fetch the MAC address alone.. How to do this..

Anyone help me in this issue...

Thanks in advance...
Old 04-28-2008, 06:25 AM   #2
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you can directly call system command like system('cmd') or may be you can use snprintf IO function.
Old 04-28-2008, 01:17 PM   #3
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man popen
  FILE *pipe;
  char buff[256];

  pipe = popen ("/sbin/ifconfig", "r");
  if (pipe == NULL)
    ... error handling ...
  while (!feof (pipe))
    if (fgets (buff, sizeof (buff), pipe) <= 0)
    ... parse input ...
  pclose (pipe);

Last edited by paulsm4; 04-28-2008 at 01:19 PM.


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