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Add descriptions for some _PC_* variables from <sys/unistd.h> that

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were missing.
This commit is contained in:
Tim J. Robbins 2002-11-04 07:21:44 +00:00
parent 745d94fc5f
commit e30609f0b6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=106401
1 changed files with 40 additions and 1 deletions
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41
lib/libc/sys/pathconf.2
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@ -32,7 +32,7 @@
.\" @(#)pathconf.2 8.1 (Berkeley) 6/4/93
.\" $FreeBSD$
.\"
.Dd June 4, 1993
.Dd November 4, 2002
.Dt PATHCONF 2
.Os
.Sh NAME
@ -97,6 +97,45 @@ system call, otherwise 0.
Return 1 if file names longer than KERN_NAME_MAX are truncated.
.It Li _PC_VDISABLE
Returns the terminal character disabling value.
.It Li _PC_ASYNC_IO
Return 1 if asynchronous I/O is supported, otherwise 0.
.It Li _PC_PRIO_IO
Returns 1 if prioritised I/O is supported for this file,
otherwise 0.
.It Li _PC_SYNC_IO
Returns 1 if synchronised I/O is supported for this file, otherwise 0.
.It Li _PC_ALLOC_SIZE_MIN
Minimum number of bytes of storage allocated for any portion of a file.
.Ar path .
.It Li _PC_FILESIZEBITS
Number of bits needed to represented the maximum file size.
.It Li _PC_REC_INCR_XFER_SIZE
Recommended increment for file transfer sizes between
.Dv _PC_REC_MIN_XFER_SIZE
and
.Dv _PC_REC_MAX_XFER_SIZE .
.It Li _PC_REC_MAX_XFER_SIZE
Maximum recommended file transfer size.
.It Li _PC_REC_MIN_XFER_SIZE
Minimum recommended file transfer size.
.It Li _PC_REC_XFER_ALIGN
Recommended file transfer buffer alignment.
.It Li _PC_SYMLINK_MAX
Maximum number of bytes in a symbolic link.
.It Li _PC_ACL_EXTENDED
Returns 1 if an Access Control List (ACL) can be set on the specified
file, otherwise 0.
.It Li _PC_ACL_PATH_MAX
Maximum number of ACL entries per file.
.It Li _PC_CAP_PRESENT
Returns 1 if a capability state can be set on the specified file,
otherwise 0.
.It Li _PC_INF_PRESENT
Returns 1 if an information label can be set on the specified file,
otherwise 0.
.It Li _PC_MAC_PRESENT
Returns 1 if a Mandatory Access Control (MAC) label can be set on the
specified file, otherwise 0.
.El
.Sh RETURN VALUES
If the call to