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Annotation of 43BSDReno/lib/libc/sys/readlink.2, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1983 The Regents of the University of California.
                      2: .\" All rights reserved.
                      3: .\"
                      4: .\" Redistribution and use in source and binary forms are permitted provided
                      5: .\" that: (1) source distributions retain this entire copyright notice and
                      6: .\" comment, and (2) distributions including binaries display the following
                      7: .\" acknowledgement:  ``This product includes software developed by the
                      8: .\" University of California, Berkeley and its contributors'' in the
                      9: .\" documentation or other materials provided with the distribution and in
                     10: .\" all advertising materials mentioning features or use of this software.
                     11: .\" Neither the name of the University nor the names of its contributors may
                     12: .\" be used to endorse or promote products derived from this software without
                     13: .\" specific prior written permission.
                     14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     17: .\"
                     18: .\"    @(#)readlink.2  6.7 (Berkeley) 6/23/90
                     19: .\"
                     20: .TH READLINK 2 "June 23, 1990"
                     21: .UC 5
                     22: .SH NAME
                     23: readlink \- read value of a symbolic link
                     24: .SH SYNOPSIS
                     25: .nf
                     26: .ft B
                     27: cc = readlink(path, buf, bufsiz)
                     28: int cc;
                     29: char *path, *buf;
                     30: int bufsiz;
                     31: .fi
                     32: .ft R
                     33: .SH DESCRIPTION
                     34: .I Readlink
                     35: places the contents of the symbolic link
                     36: .I name
                     37: in the buffer
                     38: .I buf,
                     39: which has size
                     40: .IR bufsiz . 
                     41: The contents of the link are not null terminated when returned.
                     42: .SH "RETURN VALUE
                     43: The call returns the count of characters placed in the buffer
                     44: if it succeeds, or a \-1 if an error occurs, placing the error
                     45: code in the global variable \fIerrno\fP.
                     46: .SH "ERRORS
                     47: .I Readlink
                     48: will fail if:
                     49: .TP 15
                     50: [ENOTDIR]
                     51: A component of the path prefix is not a directory.
                     52: .TP 15
                     53: [EINVAL]
                     54: The pathname contains a character with the high-order bit set.
                     55: .TP 15
                     56: [ENAMETOOLONG]
                     57: A component of a pathname exceeded 255 characters,
                     58: or an entire path name exceeded 1023 characters.
                     59: .TP 15
                     60: [ENOENT]
                     61: The named file does not exist.
                     62: .TP 15
                     63: [EACCES]
                     64: Search permission is denied for a component of the path prefix.
                     65: .TP 15
                     66: [ELOOP]
                     67: Too many symbolic links were encountered in translating the pathname.
                     68: .TP 15
                     69: [EINVAL]
                     70: The named file is not a symbolic link.
                     71: .TP 15
                     72: [EIO]
                     73: An I/O error occurred while reading from the file system.
                     74: .TP 15
                     75: [EFAULT]
                     76: .I Buf
                     77: extends outside the process's allocated address space.
                     78: .SH SEE ALSO
                     79: stat(2), lstat(2), symlink(2)

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