<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> </body> </html>