43 static char **curshell, **shells;  variable
67 	if ((s = shells))  in endusershell()
70 	free(shells);  in endusershell()
71 	shells = NULL;  in endusershell()
90 	free(shells);  in initshells()
91 	shells = NULL;  in initshells()
99 	shells = reallocarray(NULL, nalloc, sizeof (char *));  in initshells()
100 	if (shells == NULL)  in initshells()
107 		if (!(shells[nshells] = strdup(line)))  in initshells()
111 			char **new = reallocarray(shells, nalloc * 2, sizeof(char *));  in initshells()
114 			shells = new;  in initshells()
120 	shells[nshells] = NULL;  in initshells()
122 	return (shells);  in initshells()
127 		free(shells[nshells--]);  in initshells()
128 	free(shells);  in initshells()
129 	shells = NULL;  in initshells()