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- <html>
- <head>
- <title>getcwd</title>
- <body bgcolor=#ffffff>
- <h2 align=center>getcwd</h2>
- <h4 align=center>OS/161 Reference Manual</h4>
- <h3>Name</h3>
- getcwd - get name of current working directory
- <h3>Library</h3>
- Standard C Library (libc, -lc)
- <h3>Synopsis</h3>
- #include <unistd.h><br>
- <br>
- char *<br>
- getcwd(char *<em>buf</em>, size_t <em>buflen</em>);
- <h3>Description</h3>
- The name of the current directory is computed and stored in
- <em>buf</em>, an area of size <em>buflen</em>. The resulting string is
- 0-terminated.
- <p>
- This call is a wrapper (for Unix compatibility) around the system call
- <A HREF=../syscall/__getcwd.html>__getcwd</A>.
- <p>
- Note, however, that the BSD extension whereby space is allocated with
- <A HREF=malloc.html>malloc</A> if <em>buf</em> is NULL is not supported.
- <h3>Return Values</h3>
- On success, getcwd returns <em>buf</em>.
- On error, NULL 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>ENOENT</td> <td>A component of the pathname no longer exists.</td></tr>
- <tr><td>EIO</td> <td>A hard I/O error occurred.</td></tr>
- <tr><td>EFAULT</td> <td><em>buf</em> points to an invalid address.</td></tr>
- </table></blockquote>
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