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Author | SHA1 | Date |
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Michael Kerrisk | fbe71b1b79 | |
Michael Kerrisk | 1d9a03e993 | |
Michael Kerrisk | aceee9e827 | |
Michael Kerrisk | 1af74b2a96 | |
Michael Kerrisk | 025a34a66f | |
Michael Kerrisk | 5f6ad97119 | |
Michael Kerrisk | 9340c160e2 | |
Michael Kerrisk | c60f2657f1 | |
Michael Kerrisk | f6b0b0eb6c | |
Michael Kerrisk | a45168bfb1 | |
Michael Kerrisk | 3de2205aa1 | |
Michael Kerrisk | 302df5d8a2 | |
Michael Kerrisk | f8b45652ca | |
Michael Kerrisk | eeb1ae037f | |
Michael Kerrisk | 17a4cff3e4 | |
Michael Kerrisk | c1b81aa8dd | |
Michael Kerrisk | 81b2a338db | |
Michael Kerrisk | 2d72d4897f | |
Michael Kerrisk | bffbd4d0e2 | |
Michael Kerrisk | 444cf9b152 | |
Michael Kerrisk | 067c60a72e | |
Michael Kerrisk | a96c61dd3b | |
Michael Kerrisk | 0eadc752da | |
Michael Kerrisk | 4438c392d8 | |
Michael Kerrisk | c2356ba085 | |
Michael Kerrisk | 001439834b |
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@ -40,7 +40,7 @@ There is no glibc wrapper for this system call; see VERSIONS.
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.SH DESCRIPTION
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.IR Note :
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Since Linux 2.6,
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.\" As noted in a changes in the 2.5.12 source
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.\" As noted in changes in the 2.5.12 source
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this system call is deprecated and does nothing.
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It is likely to disappear altogether in a future kernel release.
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Nowadays, the task performed by
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@ -80,7 +80,7 @@ The
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.BR chmod ()
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and
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.BR fchmod ()
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system calls change a files mode bits.
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system calls change a file's mode bits.
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(The file mode consists of the file permission bits plus the set-user-ID,
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set-group-ID, and sticky bits.)
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These system calls differ only in how the file is specified:
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@ -95,6 +95,7 @@ Insufficient kernel memory was available.
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.SH VERSIONS
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.BR close_range ()
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first appeared in Linux 5.9.
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Library support was added in glibc in version 2.34.
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.SH CONFORMING TO
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.BR close_range ()
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is a nonstandard function that is also present on FreeBSD.
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@ -26,7 +26,7 @@ or
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.IR arg .
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.PP
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Use of
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.I ioctl
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.BR ioctl ()
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makes for nonportable programs.
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Use the POSIX interface described in
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.BR termios (3)
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@ -80,14 +80,15 @@ except that they take a
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.I "struct termio\ *"
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instead of a
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.IR "struct termios\ *" .
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.IP
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.BI "TCGETA struct termio *" argp
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.IP
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.BI "TCSETA const struct termio *" argp
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.IP
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.BI "TCSETAW const struct termio *" argp
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.IP
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.BI "TCSETAF const struct termio *" argp
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.RS
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.TS
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lb l.
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TCGETA \fBstruct termio *\fPargp
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TCSETA \fBconst struct termio *\fPargp
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TCSETAW \fBconst struct termio *\fPargp
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TCSETAF \fBconst struct termio *\fPargp
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.TE
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.RE
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.SS Locking the termios structure
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The
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.I termios
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@ -120,7 +121,6 @@ Window sizes are kept in the kernel, but not used by the kernel
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(except in the case of virtual consoles, where the kernel will
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update the window size when the size of the virtual console changes,
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for example, by loading a new font).
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.PP
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.TP
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.B TIOCGWINSZ
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Argument:
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@ -171,7 +171,7 @@ When
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.I arg
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is nonzero, nobody knows what will happen.
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.IP
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(SVr4, UnixWare, Solaris, Linux treat
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(SVr4, UnixWare, Solaris, and Linux treat
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.I "tcsendbreak(fd,arg)"
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with nonzero
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.I arg
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@ -530,6 +530,7 @@ The BSD ioctls
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.BR TIOCSTOP ,
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.BR TIOCSTART ,
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.BR TIOCUCNTL ,
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and
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.B TIOCREMOTE
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have not been implemented under Linux.
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.SS Modem control
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@ -254,7 +254,7 @@ restrictions.
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If the memory region specified by
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.I addr
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and
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.I len
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.I length
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overlaps pages of any existing mapping(s), then the overlapped
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part of the existing mapping(s) will be discarded.
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If the specified address cannot be used,
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@ -1270,7 +1270,7 @@ records when a new cgroup is created (and activated).
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.\" commit e17d43b93e544f5016c0251d2074c15568d5d963
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This enables the generation of
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.B PERF_RECORD_TEXT_POKE
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records when there's a changes to the kernel text
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records when there's a change to the kernel text
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(i.e., self-modifying code).
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.TP
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.IR wakeup_events ", " wakeup_watermark
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@ -418,7 +418,7 @@ and the process is not privileged
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.B CAP_FOWNER
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capability);
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or the filesystem containing
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.I pathname
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.I oldpath
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does not support renaming of the type requested.
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.TP
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.B EROFS
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@ -53,7 +53,7 @@ was not allowed, or one of the directories in the path prefix of
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.I pathname
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did not allow search permission.
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(See also
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.BR path_resolution (7).
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.BR path_resolution (7).)
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.TP
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.B EBUSY
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.I pathname
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@ -207,7 +207,6 @@ was NULL.
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Could not allocate memory for the descriptor or for the page tables.
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.PP
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.BR shmdt ()
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.I errno
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can fail with one of the following errors:
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.TP
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.B EINVAL
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@ -99,7 +99,7 @@ metadata related to the filesystem itself.
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Disk space was exhausted while synchronizing.
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.TP
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.BR ENOSPC ", " EDQUOT
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Data was written to a files on NFS or another filesystem which does not
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Data was written to a file on NFS or another filesystem which does not
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allocate space at the time of a
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.BR write (2)
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system call, and some previous write failed due to insufficient
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@ -159,7 +159,7 @@ In glibc 2.9 and earlier,
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.\" This can be seen in sysdeps/ieee754/k_standard.c
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when a pole error occurs,
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.I errno
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as set to
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is set to
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.BR EDOM
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instead of the POSIX-mandated
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.BR ERANGE .
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@ -100,7 +100,7 @@ The
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function addresses a problem that security-conscious applications
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may run into when using
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.BR bzero ():
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if the compiler can deduce that the location to zeroed will
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if the compiler can deduce that the location to be zeroed will
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never again be touched by a
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.I correct
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program, then it may remove the
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29
man3/crypt.3
29
man3/crypt.3
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@ -257,20 +257,23 @@ The following values of
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are supported:
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.RS
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.TS
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l l.
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ID | Method
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lb lb
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l lx.
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ID Method
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_
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1 | MD5
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2a | Blowfish (not in mainline glibc; added in some
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| Linux distributions)
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1 MD5
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2a T{
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Blowfish (not in mainline glibc; added in some
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Linux distributions)
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T}
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.\" openSUSE has Blowfish, but AFAICS, this option is not supported
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.\" natively by glibc -- mtk, Jul 08
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.\"
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.\" md5 | Sun MD5
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.\" glibc doesn't appear to natively support Sun MD5; I don't know
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.\" if any distros add the support.
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5 | SHA-256 (since glibc 2.7)
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6 | SHA-512 (since glibc 2.7)
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5 SHA-256 (since glibc 2.7)
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6 SHA-512 (since glibc 2.7)
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.TE
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.RE
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.PP
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@ -283,13 +286,15 @@ following "$\fIid\fP$" in the salt.
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The "\fIencrypted\fP"
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part of the password string is the actual computed password.
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The size of this string is fixed:
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.RS
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.TS
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l l.
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MD5 | 22 characters
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SHA-256 | 43 characters
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SHA-512 | 86 characters
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lb l.
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MD5 22 characters
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SHA-256 43 characters
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SHA-512 86 characters
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.TE
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.sp 1
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.RE
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.PP
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The characters in "\fIsalt\fP" and "\fIencrypted\fP" are drawn from the set
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[\fBa\-zA\-Z0\-9./\fP].
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In the MD5 and SHA implementations the entire
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@ -672,7 +672,7 @@ ESC ] 2 ; \fItxt\fP ST Set window title to \fItxt\fP.
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ESC ] 4 ; \fInum\fP; \fItxt\fP ST Set ANSI color \fInum\fP to \fItxt\fP.
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ESC ] 10 ; \fItxt\fP ST Set dynamic text color to \fItxt\fP.
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ESC ] 4 6 ; \fIname\fP ST T{
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Change log file to \fIname\fP (normally disabled by a compile-time option)
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Change log file to \fIname\fP (normally disabled by a compile-time option).
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T}
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ESC ] 5 0 ; \fIfn\fP ST Set font to \fIfn\fP.
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.TE
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@ -1706,7 +1706,7 @@ Acceptable values range from \-1000
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(OOM_SCORE_ADJ_MIN) to +1000 (OOM_SCORE_ADJ_MAX).
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This allows user space to control the preference for OOM-killing,
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ranging from always preferring a certain
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task or completely disabling it from OOM killing.
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task or completely disabling it from OOM-killing.
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The lowest possible value, \-1000, is
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equivalent to disabling OOM-killing entirely for that task,
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since it will always report a badness score of 0.
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@ -119,7 +119,7 @@ The name of the logged-in user (used by some System-V derived programs).
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Set at login time, see section NOTES below.
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.TP
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.B HOME
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A user's login directory, set a login time.
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A user's login directory.
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Set at login time, see section NOTES below.
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.TP
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.B LANG
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@ -228,7 +228,7 @@ placed in this directory.
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Commands for the MH mail handling system (optional).
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.TP
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.I /usr/bin/X11
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is the traditional place to look for X11 executables; on Linux, it
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This is the traditional place to look for X11 executables; on Linux, it
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usually is a symbolic link to
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.IR /usr/X11R6/bin .
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.TP
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@ -275,7 +275,7 @@ can't be combined with
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Threads are required to be in the same PID namespace such that
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the threads in a process can send signals to each other.
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Similarly, it must be possible to see all of the threads
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of a processes in the
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of a process in the
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.BR proc (5)
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filesystem.
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Additionally, if two threads were in different PID
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@ -53,7 +53,7 @@ Remove a message from a queue.
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Perform various control operations on a queue, including deletion.
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.\"
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.SS Semaphore sets
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System V semaphores allow processes to synchronize their actions
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System V semaphores allow processes to synchronize their actions.
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System V semaphores are allocated in groups called sets;
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each semaphore in a set is a counting semaphore.
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POSIX semaphores provide an alternative API for achieving the same result;
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@ -188,7 +188,7 @@ can be used to transform the internal
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characters and strings into the system character encoding and back
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and
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.BR wcwidth (3)
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tells, how many positions (0\(en2) the cursor is advanced by the
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tells how many positions (0\(en2) the cursor is advanced by the
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output of a character.
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.SS Private Use Areas (PUA)
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In the Basic Multilingual Plane,
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@ -497,7 +497,7 @@ URI but their use is limited to their reserved purpose
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.PP
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Unreserved characters may be included in a URI.
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Unreserved characters
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include uppercase and lowercase English letters,
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include uppercase and lowercase Latin letters,
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decimal digits, and the following
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limited set of punctuation marks and symbols:
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.IP
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@ -238,6 +238,10 @@ are delimited by colons or spaces.
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.B \-\-list
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List all dependencies and how they are resolved.
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.TP
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.BR \-\-list\-tunables " (since 2.33)"
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Print the names and values of all tunables,
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along with the minimum and maximum allowed values.
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.TP
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.BR \-\-preload " \fIlist\fP (since glibc 2.30)"
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Preload the objects specified in
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.IR list .
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