Return to unlink.2 CVS log

Up to [CSRG BSD Unix] / 43BSDReno / lib / libc / sys

Annotation of 43BSDReno/lib/libc/sys/unlink.2, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)unlink.2    6.2 (Berkeley) 5/22/85
        !             6: .\"
        !             7: .TH UNLINK 2 "May 22, 1985"
        !             8: .UC 4
        !             9: .SH NAME
        !            10: unlink \- remove directory entry
        !            11: .SH SYNOPSIS
        !            12: .nf
        !            13: .ft B
        !            14: unlink(path)
        !            15: char *path;
        !            16: .fi
        !            17: .ft R
        !            18: .SH DESCRIPTION
        !            19: .I Unlink
        !            20: removes the entry for the file
        !            21: .I path
        !            22: from its directory.
        !            23: If this entry was the last link to the file,
        !            24: and no process has the file open, then
        !            25: all resources associated with the file are reclaimed.
        !            26: If, however, the file was open in any process, the actual
        !            27: resource reclamation is delayed until it is closed,
        !            28: even though the directory entry has disappeared.
        !            29: .SH "RETURN VALUE
        !            30: Upon successful completion, a value of 0 is returned.
        !            31: Otherwise, a value of \-1 is returned and
        !            32: .I errno
        !            33: is set to indicate the error.
        !            34: .SH "ERRORS
        !            35: The \fIunlink\fP succeeds unless:
        !            36: .TP 15
        !            37: [ENOTDIR]
        !            38: A component of the path prefix is not a directory.
        !            39: .TP 15
        !            40: [EINVAL]
        !            41: The pathname contains a character with the high-order bit set.
        !            42: .TP 15
        !            43: [ENAMETOOLONG]
        !            44: A component of a pathname exceeded 255 characters,
        !            45: or an entire path name exceeded 1023 characters.
        !            46: .TP 15
        !            47: [ENOENT]
        !            48: The named file does not exist.
        !            49: .TP 15
        !            50: [EACCES]
        !            51: Search permission is denied for a component of the path prefix.
        !            52: .TP 15
        !            53: [EACCES]
        !            54: Write permission is denied on the directory containing the link
        !            55: to be removed.
        !            56: .TP 15
        !            57: [ELOOP]
        !            58: Too many symbolic links were encountered in translating the pathname.
        !            59: .TP 15
        !            60: [EPERM]
        !            61: The named file is a directory and the effective user ID
        !            62: of the process is not the super-user.
        !            63: .TP 15
        !            64: [EPERM]
        !            65: The directory containing the file is marked sticky,
        !            66: and neither the containing directory nor the file to be removed
        !            67: are owned by the effective user ID.
        !            68: .TP 15
        !            69: [EBUSY]
        !            70: The entry to be unlinked is the mount point for a
        !            71: mounted file system.
        !            72: .TP 15
        !            73: [EIO]
        !            74: An I/O error occurred while deleting the directory entry
        !            75: or deallocating the inode.
        !            76: .TP 15
        !            77: [EROFS]
        !            78: The named file resides on a read-only file system.
        !            79: .TP 15
        !            80: [EFAULT]
        !            81: .I Path
        !            82: points outside the process's allocated address space.
        !            83: .SH "SEE ALSO"
        !            84: close(2), link(2), rmdir(2)

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.