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32 .\" @(#)getcwd.3 8.2 (Berkeley) 12/11/93
33 .\" $FreeBSD: src/lib/libc/gen/getcwd.3,v 1.7.2.6 2001/12/14 18:33:51 ru Exp $
34 .\" $DragonFly: src/lib/libc/gen/getcwd.3,v 1.3 2006/05/26 19:39:36 swildner Exp $
42 .Nd get working directory pathname
48 .Fn getcwd "char *buf" "size_t size"
54 function copies the absolute pathname of the current working directory
55 into the memory referenced by
57 and returns a pointer to
61 argument is the size, in bytes, of the array referenced by
68 space is allocated as necessary to store the pathname.
69 This space may later be
74 is a compatibility routine which calls
78 argument and a size of
80 (as defined in the include
89 These routines have traditionally been used by programs to save the
90 name of a working directory for the purpose of returning to it.
91 A much faster and less error-prone method of accomplishing this is to
92 open the current directory
98 Upon successful completion, a pointer to the pathname is returned.
101 pointer is returned and the global variable
103 is set to indicate the error.
106 copies the error message associated with
108 into the memory referenced by
117 Read or search permission was denied for a component of the pathname.
123 A component of the pathname no longer exists.
125 Insufficient memory is available.
129 argument is greater than zero but smaller than the length of the pathname
143 The ability to specify a
147 allocate memory as necessary is an extension.
157 does not do sufficient error checking and is not able to return very
158 long, but valid, paths.
159 It is provided for compatibility.