Arguments from user in case of Post Request

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Hi folks,
I have written a Post Request code for Login, in which I have
to supply the user name and password as arguments with uri on
the command line. But I want to take user name and password
from the user. But the problem is, while parsing the
arguments, we have a function HTParseFormInput, which takes
arguments as 'argument=value' string, but I only want to pass
the value. Is there any other method that can be helpful ?
I am attaching the code for your reference.

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Content-Type: text/x-csrc;
	name="post_copy.c"
Content-Disposition: inline;
	filename="post_copy.c"
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