40 /* Record the location of the current working directory in CWD so that
50 save_cwd (cwd)  in save_cwd()  argument
51      struct saved_cwd *cwd;  in save_cwd()
55   cwd->desc = -1;
56   cwd->name = NULL;
61       cwd->desc = open (".", O_RDONLY);
62       if (cwd->desc < 0)
71       if (fchdir (cwd->desc))
75 	      close (cwd->desc);
76 	      cwd->desc = -1;
82 	      close (cwd->desc);
83 	      cwd->desc = -1;
96       cwd->name = xgetwd ();
97       if (cwd->name == NULL)
106 /* Change to recorded location, CWD, in directory hierarchy.
111 restore_cwd (cwd, dest)  in restore_cwd()  argument
112      const struct saved_cwd *cwd;  in restore_cwd()
116   if (cwd->desc >= 0)
118       if (fchdir (cwd->desc))
125   else if (chdir (cwd->name) < 0)
127       error (0, errno, "%s", cwd->name);
134 free_cwd (cwd)  in free_cwd()  argument
135      struct saved_cwd *cwd;  in free_cwd()
137   if (cwd->desc >= 0)
138     close (cwd->desc);
139   if (cwd->name)
140     free (cwd->name);