1GETWD(P)                   POSIX Programmer's Manual                  GETWD(P)
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NAME

6       getwd - get the current working directory pathname (LEGACY)
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SYNOPSIS

9       #include <unistd.h>
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11       char *getwd(char *path_name);
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DESCRIPTION

15       The  getwd()  function shall determine an absolute pathname of the cur‐
16       rent working directory of the calling process, and copy a  string  con‐
17       taining  that pathname into the array pointed to by the path_name argu‐
18       ment.
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20       If the length of the pathname  of  the  current  working  directory  is
21       greater than ({PATH_MAX}+1) including the null byte, getwd() shall fail
22       and return a null pointer.
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RETURN VALUE

25       Upon successful completion, a pointer  to  the  string  containing  the
26       absolute  pathname  of the current working directory shall be returned.
27       Otherwise, getwd() shall return a null pointer and the contents of  the
28       array pointed to by path_name are undefined.
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ERRORS

31       No errors are defined.
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33       The following sections are informative.
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EXAMPLES

36       None.
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APPLICATION USAGE

39       For  applications  portability, the getcwd() function should be used to
40       determine the current working directory instead of getwd().
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RATIONALE

43       Since the user cannot specify  the  length  of  the  buffer  passed  to
44       getwd(),  use of this function is discouraged. The length of a pathname
45       described in {PATH_MAX} is file system-dependent and may vary from  one
46       mount  point  to another, or might even be unlimited. It is possible to
47       overflow this buffer in such a way as to cause applications to fail, or
48       possible system security violations.
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50       It  is  recommended that the getcwd() function should be used to deter‐
51       mine the current working directory.
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FUTURE DIRECTIONS

54       This function may be withdrawn in a future version.
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SEE ALSO

57       getcwd()  ,  the  Base  Definitions  volume  of   IEEE Std 1003.1-2001,
58       <unistd.h>
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61       Portions  of  this text are reprinted and reproduced in electronic form
62       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
63       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
64       Specifications Issue 6, Copyright (C) 2001-2003  by  the  Institute  of
65       Electrical  and  Electronics  Engineers, Inc and The Open Group. In the
66       event of any discrepancy between this version and the original IEEE and
67       The  Open Group Standard, the original IEEE and The Open Group Standard
68       is the referee document. The original Standard can be  obtained  online
69       at http://www.opengroup.org/unix/online.html .
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73IEEE/The Open Group                  2003                             GETWD(P)
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