| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455 |
- <html>
- <head>
- <title>readlink</title>
- <body bgcolor=#ffffff>
- <h2 align=center>readlink</h2>
- <h4 align=center>OS/161 Reference Manual</h4>
- <h3>Name</h3>
- readlink - fetch symbolic link contents
- <h3>Library</h3>
- Standard C Library (libc, -lc)
- <h3>Synopsis</h3>
- #include <unistd.h><br>
- <br>
- int<br>
- readlink(const char *<em>path</em>, char *<em>buf</em>, size_t <em>len</em>);
- <h3>Description</h3>
- readlink retrieves the contents of the symbolic link named by
- <em>path</em> and places them in the buffer <em>buf</em>. At most
- <em>len</em> bytes are written.
- <p>
- readlink does not include a null terminator in <em>buf</em>.
- <h3>Return Values</h3>
- readlink returns the number of characters transferred. If an error
- occurs, -1 is returned, and <A HREF=errno.html>errno</A> is set
- according to the error encountered.
- <h3>Errors</h3>
- The following error codes should be returned under the conditions
- given. Other error codes may be returned for other errors not
- mentioned here.
- <blockquote><table width=90%>
- <td width=10%> </td><td> </td></tr>
- <tr><td>ENODEV</td> <td>The device prefix of <em>filename</em> did
- not exist.</td></tr>
- <tr><td>ENOTDIR</td> <td>A non-final component of <em>path</em>
- was not a directory.</td></tr>
- <tr><td>ENOENT</td> <td>The named file does not exist.</td></tr>
- <tr><td>EINVAL</td> <td>The named file is not a symlink.</td></tr>
- <tr><td>EIO</td> <td>A hard I/O error occurred.</td></tr>
- <tr><td>EFAULT</td> <td><em>buf</em> or <em>path</em> points to an
- invalid address.</td></tr>
- </table></blockquote>
- </body>
- </html>
|
