* Copyright (c) 1983 Regents of the University of California.
* This code is derived from software contributed to Berkeley by
* Edward Wang at The University of California, Berkeley.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
static char sccsid
[] = "@(#)var.c 3.12 (Berkeley) 6/6/90";
/* do this first, easier to recover */
if (val
.v_type
== V_STR
&& val
.v_str
!= 0 &&
(val
.v_str
= str_cpy(val
.v_str
)) == 0)
if (*(p
= var_lookup1(head
, name
)) == 0) {
r
= (struct var
*) malloc(sizeof (struct var
));
if ((r
->r_name
= str_cpy(name
)) == 0) {
r
->r_left
= r
->r_right
= 0;
var_setstr1(head
, name
, str
)
return var_set1(head
, name
, &v
);
var_setnum1(head
, name
, num
)
return var_set1(head
, name
, &v
);
if (*(p
= var_lookup1(head
, name
)) == 0)
if ((cmp
= strcmp(name
, (*p
)->r_name
)) < 0)
if (var_walk1(r
->r_left
, func
, a
) < 0 || (*func
)(a
, r
) < 0
|| var_walk1(r
->r_right
, func
, a
) < 0)