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Yes, see, they're both pointers as far as the computer's concerned.

name_2 ends up being a pointer that points to 20 bytes of memory that can hold a string.

name_1 is a pointer that points...

name_1 is uninitialized and may be pointing anywhere. You need to allocate some memory and then assign its location to name_1.

Regards,
Alister

1. /etc/shadow
2. You have to decrypt the password, a difficult thing to do
3. yes

Have a look at:

Linux Password & Shadow File Formats...

Firstly I personally not understanding the way u have stated the problem and what doubt you have. The prog works perfectly, when default statement executed the 'cont' value doesn't get changed,...