1995-10-31 - Re: /dev/random for FreeBSD [was: Re: /dev/random for Linux]

Header Data

From: Mike_Spreitzer.PARC@xerox.com
To: tytso@mit.edu
Message Hash: 72c6dfea72fc241311fb344fe0559b7ac1238d7c83a4453dbf4a865af646c891
Message ID: <95Oct31.094528pst.”14855(1)”@alpha.xerox.com>
Reply To: <9510310316.AA26268@dcl.MIT.EDU>
UTC Datetime: 1995-10-31 18:56:13 UTC
Raw Date: Wed, 1 Nov 1995 02:56:13 +0800

Raw message

From: Mike_Spreitzer.PARC@xerox.com
Date: Wed, 1 Nov 1995 02:56:13 +0800
To: tytso@mit.edu
Subject: Re: /dev/random for FreeBSD [was: Re: /dev/random for Linux]
In-Reply-To: <9510310316.AA26268@dcl.MIT.EDU>
Message-ID: <95Oct31.094528pst."14855(1)"@alpha.xerox.com>
MIME-Version: 1.0
Content-Type: text/plain


Blocking vs. non-blocking is a standard issue in design of U*X devices.
Standard solution: make it block by default, and accept an IOCTL to put it in
non-blocking mode.  There's even a POSIX way to do this:

	flags_or_err = fcntl(fd, F_GETFL, 0);
	{check for error}
	res = fcntl(fd, F_SETFL, flags_or_err | O_NONBLOCK);
	{check for error}

Thread

• Return to October 1995

• Return to November 1995

• Return to ““Josh M. Osborne” <stripes@va.pubnix.com>”
• Return to “Mark Murray <mark@grondar.za>”
• Return to “Mike_Spreitzer.PARC@xerox.com”
• Return to “sdw@lig.net (Stephen D. Williams)”

• Return to ““Theodore Ts’o” <tytso@MIT.EDU>”

• 1995-10-30 (Tue, 31 Oct 1995 07:36:57 +0800) - Re: /dev/random for FreeBSD [was: Re: /dev/random for Linux] - Mark Murray <mark@grondar.za>
  • 1995-10-30 (Tue, 31 Oct 1995 07:47:22 +0800) - Re: /dev/random for FreeBSD [was: Re: /dev/random for Linux] - “Theodore Ts’o” <tytso@MIT.EDU>
  • 1995-10-31 (Tue, 31 Oct 1995 11:36:57 +0800) - Re: /dev/random for FreeBSD [was: Re: /dev/random for Linux] - “Josh M. Osborne” <stripes@va.pubnix.com>
    • 1995-10-31 (Tue, 31 Oct 1995 11:52:56 +0800) - Re: /dev/random for FreeBSD [was: Re: /dev/random for Linux] - “Theodore Ts’o” <tytso@MIT.EDU>
      • 1995-10-31 (Wed, 1 Nov 1995 02:56:13 +0800) - Re: /dev/random for FreeBSD [was: Re: /dev/random for Linux] - Mike_Spreitzer.PARC@xerox.com
        • 1995-11-02 (Thu, 2 Nov 1995 10:32:40 +0800) - Re: /dev/random for FreeBSD [was: Re: /dev/random for Linux] - sdw@lig.net (Stephen D. Williams)