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34 .Nd get working directory pathname
40 .Fn getcwd "char *buf" "size_t size"
46 function copies the absolute pathname of the current working directory
47 into the memory referenced by
49 and returns a pointer to
53 argument is the size, in bytes, of the array referenced by
60 space is allocated as necessary to store the pathname.
61 This space may later be
66 is a compatibility routine which calls
70 argument and a size of
72 (as defined in the include
81 These routines have traditionally been used by programs to save the
82 name of a working directory for the purpose of returning to it.
83 A much faster and less error-prone method of accomplishing this is to
84 open the current directory
90 Upon successful completion, a pointer to the pathname is returned.
93 pointer is returned and the global variable
95 is set to indicate the error.
98 copies the error message associated with
100 into the memory referenced by
113 A component of the pathname no longer exists.
115 Insufficient memory is available.
119 argument is greater than zero but smaller than the length of the pathname
129 Read or search permission was denied for a component of the pathname.
130 This is only checked in limited cases, depending on implementation details.
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.