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Libraries updates and cleanup

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* Updating common/lib
 * Updating lib/csu
 * Updating lib/libc
 * Updating libexec/ld.elf_so
 * Corrected test on __minix in featuretest to actually follow the
   meaning of the comment.
 * Cleaned up _REENTRANT-related defintions.
 * Disabled -D_REENTRANT for libfetch
 * Removing some unneeded __NBSD_LIBC defines and tests

Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
This commit is contained in:
sambuc
2013-01-14 11:36:26 +01:00
parent f6aac1c3b5
commit f14fb60209
1285 changed files with 44244 additions and 14308 deletions
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lib/libc/sys/link.2
+66 -40
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@@ -1,6 +1,6 @@
.\" $NetBSD: link.2,v 1.24 2010/05/31 12:16:20 njoly Exp $
.\" $NetBSD: link.2,v 1.26 2011/08/08 19:50:17 wiz Exp $
.\"
.\" Copyright (c) 1980, 1991, 1993
.\" Copyright (c) 1980, 1991, 1993, 2011
.\" The Regents of the University of California. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
@@ -41,6 +41,8 @@
.In unistd.h
.Ft int
.Fn link "const char *name1" "const char *name2"
.Ft int
.Fn linkat "int fd1" "const char *name1" "int fd2" "const char *name2" "int flags"
.Sh DESCRIPTION
The
.Fn link
@@ -77,6 +79,28 @@ must be in the same file system.
.Fa name1
may not be a directory unless the caller is the super-user
and the file system containing it supports linking to directories.
.Pp
When operating on a symlink,
.Fn link
resolves the symlink and creates a hard link on the target.
.Fn linkat
will do the same if
.Dv AT_SYMLINK_FOLLOW
is set in
.Fa flags ,
but it will link on the symlink itself if the flag is clear.
.Pp
At the moment,
.Fn linkat
is partially implemented.
It will return
.Er ENOSYS
for
.Fa fd1
and
.Fa fd2
values different than
.Dv AT_FDCWD .
.Sh RETURN VALUES
Upon successful completion, a value of 0 is returned.
Otherwise, a value of \-1 is returned and
@@ -86,8 +110,32 @@ is set to indicate the error.
.Fn link
will fail and no link will be created if:
.Bl -tag -width Er
.It Bq Er ENOTDIR
A component of either path prefix is not a directory.
.It Bq Er EACCES
A component of either path prefix denies search permission, or
the requested link requires writing in a directory with a mode
that denies write permission.
.It Bq Er EDQUOT
The directory in which the entry for the new link
is being placed cannot be extended because the
user's quota of disk blocks on the file system
containing the directory has been exhausted.
.It Bq Er EEXIST
The link named by
.Fa name2
does exist.
.It Bq Er EFAULT
One of the pathnames specified
is outside the process's allocated address space.
.It Bq Er EIO
An I/O error occurred while reading from or writing to
the file system to make the directory entry.
.It Bq Er ELOOP
Too many symbolic links were encountered in translating one of the pathnames.
.It Bq Er EMLINK
The link count of the file named by
.Fa name1
would exceed
.Dv {LINK_MAX} .
.It Bq Er ENAMETOOLONG
A component of a pathname exceeded
.Brq Dv NAME_MAX
@@ -95,30 +143,20 @@ characters, or an entire path name exceeded
.Brq Dv PATH_MAX
characters.
.It Bq Er ENOENT
A component of either path prefix does not exist.
.It Bq Er EACCES
A component of either path prefix denies search permission, or
the requested link requires writing in a directory with a mode
that denies write permission.
.It Bq Er ELOOP
Too many symbolic links were encountered in translating one of the pathnames.
.It Bq Er ENOENT
The file named by
A component of either path prefix does not exist, or the file named
by
.Fa name1
does not exist.
.It Bq Er ENOSPC
The directory in which the entry for the new link is being placed
cannot be extended because there is no space left on the file
system containing the directory.
.It Bq Er ENOTDIR
A component of either path prefix is not a directory.
.It Bq Er EOPNOTSUPP
The file system containing the file named by
.Fa name1
does not support links.
.It Bq Er EMLINK
The link count of the file named by
.Fa name1
would exceed
.Dv {LINK_MAX} .
.It Bq Er EEXIST
The link named by
.Fa name2
does exist.
.It Bq Er EPERM
The file named by
.Fa name1
@@ -127,30 +165,15 @@ user ID is not super-user,
or the file system containing the file does not permit the use of
.Fn link
on a directory.
.It Bq Er EROFS
The requested link requires writing in a directory on a read-only file
system.
.It Bq Er EXDEV
The link named by
.Fa name2
and the file named by
.Fa name1
are on different file systems.
.It Bq Er ENOSPC
The directory in which the entry for the new link is being placed
cannot be extended because there is no space left on the file
system containing the directory.
.It Bq Er EDQUOT
The directory in which the entry for the new link
is being placed cannot be extended because the
user's quota of disk blocks on the file system
containing the directory has been exhausted.
.It Bq Er EIO
An I/O error occurred while reading from or writing to
the file system to make the directory entry.
.It Bq Er EROFS
The requested link requires writing in a directory on a read-only file
system.
.It Bq Er EFAULT
One of the pathnames specified
is outside the process's allocated address space.
.El
.Sh SEE ALSO
.Xr symlink 2 ,
@@ -160,3 +183,6 @@ The
.Fn link
function conforms to
.St -p1003.1-90 .
.Sh BUGS
.Fn linkat
is partially implemented.