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Machine ID, IP address

Posted on 2001-07-17
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Last Modified: 2013-11-20
Please provide console program code to get and display the machine ID and IP address using winsock. I have problem dealing with those sockaddr and hostent. Thanks much.
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Question by:hoooi
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8 Comments
 

Author Comment

by:hoooi
ID: 6291698
By machine ID I mean if there is one. On unix machine, when I type hostid, I get an unique string. Is there  something like that on windows? Well, maybe you can tell me how to get the network ID and host id fr the IP address. Thanks.
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Accepted Solution

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jhance earned 200 total points
ID: 6291886
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Author Comment

by:hoooi
ID: 6295416
That is great. If you don't mind, can you tell me if there is any unique machine ID? Is hostent.sin_addr.s_addr equivalent to the dotted IP address? I'm just looking for a unique number because it's easier to compare a number than a dotted string.
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Expert Comment

by:jhance
ID: 6295507
The MAC address is guaranteed to be unique to the network adapter.  The PC architecture has no other unique ID as Sun and other unix workstations do.

Ragardless, the "dotted string" is ONLY for your convenience.  The IP address is a 32-bit number and the MAC address is a 48-bit number.
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Author Comment

by:hoooi
ID: 6295601
Then, is the 32-bit number IP address equal to hostent.sin_addr.s_addr?
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LVL 32

Expert Comment

by:jhance
ID: 6295689
Yes, they are equivalent.
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Author Comment

by:hoooi
ID: 6295693
Great. I will copy those codes soon, hope they won't be offline at all.
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Expert Comment

by:jhance
ID: 6295701
That site has been around for quite some time....
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