include/pidfd-utils: remove hardcoded syscall fallback

[thirdparty/util-linux.git] / misc-utils / mcookie.1

diff --git a/misc-utils/mcookie.1 b/misc-utils/mcookie.1
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--- a/misc-utils/mcookie.1
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-.\" mcookie.1 --
-.\" Public Domain 1995 Rickard E. Faith (faith@cs.unc.edu)
-.TH MCOOKIE 1 "25 September 1995" "" "Linux Programmer's Manual"
-.SH NAME
-mcookie \- generate magic cookies for xauth
-.SH SYNOPSIS
-.B mcookie
-.RB [ \-v ]
-.RB [ \-f
-.IR filename ]
-.SH DESCRIPTION
-.B mcookie
-generates a 128-bit random hexadecimal number for use with the X authority
-system.  Typical usage:
-.RS
-xauth add :0 . `mcookie`
-.RE
-.PP
-The "random" number generated is actually the output of the MD5 message
-digest fed with various pieces of random information: the current time, the
-process id, the parent process id, the contents of an input file (if
-.B \-f
-is specified), and several bytes of information from the first of the
-following devices which is present:
-.IR /dev/random ,
-.IR /dev/urandom ,
-files in
-.IR /proc ,
-.IR /dev/audio .
-.SH BUGS
-The entropy in the generated 128-bit is probably quite small (and,
-therefore, vulnerable to attack) unless a non-pseudorandom number generator
-is used (e.g.,
-.I /dev/random
-under Linux).
-.PP
-It is assumed that none of the devices opened will block.
-.SH FILES
-.I /dev/random
-.br
-.I /dev/urandom
-.br
-.I /dev/audio
-.br
-.I /proc/stat
-.br
-.I /proc/loadavg
-.SH "SEE ALSO"
-.BR X (1),
-.BR xauth (1),
-.BR md5sum (1)
-.SH AVAILABILITY
-The mcookie command is part of the util-linux package and is available from
-ftp://ftp.kernel.org/pub/linux/utils/util-linux/.