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Diffstat (limited to 'lib/libc/sys/access.2')
-rw-r--r-- | lib/libc/sys/access.2 | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/lib/libc/sys/access.2 b/lib/libc/sys/access.2 deleted file mode 100644 index cf1fe90..0000000 --- a/lib/libc/sys/access.2 +++ /dev/null @@ -1,135 +0,0 @@ -.\" Copyright (c) 1980, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)access.2 8.2 (Berkeley) 4/1/94 -.\" $Id$ -.\" -.Dd April 1, 1994 -.Dt ACCESS 2 -.Os BSD 4 -.Sh NAME -.Nm access -.Nd check access permissions of a file or pathname -.Sh SYNOPSIS -.Fd #include <unistd.h> -.Ft int -.Fn access "const char *path" "int mode" -.Sh DESCRIPTION -The -.Fn access -function checks the accessibility of the -file named by -.Fa path -for the access permissions indicated by -.Fa mode . -The value of -.Fa mode -is the bitwise inclusive OR of the access permissions to be -checked -.Pf ( Dv R_OK -for read permission, -.Dv W_OK -for write permission and -.Dv X_OK -for execute/search permission) or the existence test, -.Dv F_OK . -All components of the pathname -.Fa path -are checked for access permissions (including -.Dv F_OK ) . -.Pp -The real user ID is used in place of the effective user ID -and the real group access list -(including the real group ID) are -used in place of the effective ID for verifying permission. -.Pp -Even if a process has appropriate privileges and indicates success for -.Dv X_OK , -the file may not actually have execute permission bits set. -Likewise for -.Dv R_OK -and -.Dv W_OK . -.Sh RETURN VALUES -If -.Fa path -cannot be found or if any of the desired access modes would -not be granted, then a -1 value is returned; otherwise -a 0 value is returned. -.Sh ERRORS -Access to the file is denied if: -.Bl -tag -width Er -.It Bq Er ENOTDIR -A component of the path prefix is not a directory. -.It Bq Er ENAMETOOLONG -A component of a pathname exceeded 255 characters, -or an entire path name exceeded 1023 characters. -.It Bq Er ENOENT -The named file does not exist. -.It Bq Er ELOOP -Too many symbolic links were encountered in translating the pathname. -.It Bq Er EROFS -Write access is requested for a file on a read-only file system. -.It Bq Er ETXTBSY -Write access is requested for a pure procedure (shared text) -file presently being executed. -.It Bq Er EACCES -Permission bits of the file mode do not permit the requested -access, or search permission is denied on a component of the -path prefix. The owner of a file has permission checked with -respect to the ``owner'' read, write, and execute mode bits, -members of the file's group other than the owner have permission -checked with respect to the ``group'' mode bits, and all -others have permissions checked with respect to the ``other'' -mode bits. -.It Bq Er EFAULT -.Fa Path -points 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. -.El -.Sh SEE ALSO -.Xr chmod 2 , -.Xr stat 2 -.Sh STANDARDS -The -.Fn access -function call is expected to conform to -.St -p1003.1-90 . -.Sh CAVEAT -.Fn Access -is a potential security hole and -should never be used. -.Sh HISTORY -An -.Fn access -function call appeared in -.At v7 . |