1*479ab7f0SSascha Wildner /*
2*479ab7f0SSascha Wildner * Copyright (c) 2010 The DragonFly Project. All rights reserved.
3*479ab7f0SSascha Wildner *
4*479ab7f0SSascha Wildner * This code is derived from software contributed to The DragonFly Project
5*479ab7f0SSascha Wildner * by Matthew Dillon <dillon@backplane.com>
6*479ab7f0SSascha Wildner *
7*479ab7f0SSascha Wildner * Redistribution and use in source and binary forms, with or without
8*479ab7f0SSascha Wildner * modification, are permitted provided that the following conditions
9*479ab7f0SSascha Wildner * are met:
10*479ab7f0SSascha Wildner *
11*479ab7f0SSascha Wildner * 1. Redistributions of source code must retain the above copyright
12*479ab7f0SSascha Wildner * notice, this list of conditions and the following disclaimer.
13*479ab7f0SSascha Wildner * 2. Redistributions in binary form must reproduce the above copyright
14*479ab7f0SSascha Wildner * notice, this list of conditions and the following disclaimer in
15*479ab7f0SSascha Wildner * the documentation and/or other materials provided with the
16*479ab7f0SSascha Wildner * distribution.
17*479ab7f0SSascha Wildner * 3. Neither the name of The DragonFly Project nor the names of its
18*479ab7f0SSascha Wildner * contributors may be used to endorse or promote products derived
19*479ab7f0SSascha Wildner * from this software without specific, prior written permission.
20*479ab7f0SSascha Wildner *
21*479ab7f0SSascha Wildner * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22*479ab7f0SSascha Wildner * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23*479ab7f0SSascha Wildner * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24*479ab7f0SSascha Wildner * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25*479ab7f0SSascha Wildner * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26*479ab7f0SSascha Wildner * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27*479ab7f0SSascha Wildner * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28*479ab7f0SSascha Wildner * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29*479ab7f0SSascha Wildner * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30*479ab7f0SSascha Wildner * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31*479ab7f0SSascha Wildner * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32*479ab7f0SSascha Wildner * SUCH DAMAGE.
33*479ab7f0SSascha Wildner */
34*479ab7f0SSascha Wildner
35*479ab7f0SSascha Wildner #include <stand.h>
36*479ab7f0SSascha Wildner #include <string.h>
37*479ab7f0SSascha Wildner #include "bootstrap.h"
38*479ab7f0SSascha Wildner #include "dloader.h"
39*479ab7f0SSascha Wildner
40*479ab7f0SSascha Wildner dvar_t dvbase;
41*479ab7f0SSascha Wildner dvar_t *dvlastp = &dvbase;
42*479ab7f0SSascha Wildner
43*479ab7f0SSascha Wildner dvar_t
dvar_get(const char * name)44*479ab7f0SSascha Wildner dvar_get(const char *name)
45*479ab7f0SSascha Wildner {
46*479ab7f0SSascha Wildner dvar_t var;
47*479ab7f0SSascha Wildner
48*479ab7f0SSascha Wildner for (var = dvbase; var; var = var->next) {
49*479ab7f0SSascha Wildner if (strcmp(name, var->name) == 0)
50*479ab7f0SSascha Wildner return(var);
51*479ab7f0SSascha Wildner }
52*479ab7f0SSascha Wildner return(NULL);
53*479ab7f0SSascha Wildner }
54*479ab7f0SSascha Wildner
55*479ab7f0SSascha Wildner void
dvar_set(const char * name,char ** data,int count)56*479ab7f0SSascha Wildner dvar_set(const char *name, char **data, int count)
57*479ab7f0SSascha Wildner {
58*479ab7f0SSascha Wildner dvar_t var;
59*479ab7f0SSascha Wildner
60*479ab7f0SSascha Wildner for (var = dvbase; var; var = var->next) {
61*479ab7f0SSascha Wildner if (strcmp(name, var->name) == 0)
62*479ab7f0SSascha Wildner break;
63*479ab7f0SSascha Wildner }
64*479ab7f0SSascha Wildner if (var == NULL) {
65*479ab7f0SSascha Wildner var = malloc(sizeof(*var) + strlen(name) + 1);
66*479ab7f0SSascha Wildner var->name = (char *)(void *)(var + 1);
67*479ab7f0SSascha Wildner strcpy(var->name, name);
68*479ab7f0SSascha Wildner var->next = NULL;
69*479ab7f0SSascha Wildner *dvlastp = var;
70*479ab7f0SSascha Wildner dvlastp = &var->next;
71*479ab7f0SSascha Wildner } else {
72*479ab7f0SSascha Wildner while (--var->count >= 0)
73*479ab7f0SSascha Wildner free(var->data[var->count]);
74*479ab7f0SSascha Wildner free(var->data);
75*479ab7f0SSascha Wildner /* var->data = NULL; not needed */
76*479ab7f0SSascha Wildner }
77*479ab7f0SSascha Wildner var->count = count;
78*479ab7f0SSascha Wildner var->data = malloc(sizeof(char *) * (count + 1));
79*479ab7f0SSascha Wildner var->data[count] = NULL;
80*479ab7f0SSascha Wildner while (--count >= 0)
81*479ab7f0SSascha Wildner var->data[count] = strdup(data[count]);
82*479ab7f0SSascha Wildner }
83*479ab7f0SSascha Wildner
84*479ab7f0SSascha Wildner dvar_t
dvar_copy(dvar_t ovar)85*479ab7f0SSascha Wildner dvar_copy(dvar_t ovar)
86*479ab7f0SSascha Wildner {
87*479ab7f0SSascha Wildner dvar_t var;
88*479ab7f0SSascha Wildner int count;
89*479ab7f0SSascha Wildner
90*479ab7f0SSascha Wildner var = malloc(sizeof(*var));
91*479ab7f0SSascha Wildner bzero(var, sizeof(*var));
92*479ab7f0SSascha Wildner count = ovar->count;
93*479ab7f0SSascha Wildner
94*479ab7f0SSascha Wildner var->count = count;
95*479ab7f0SSascha Wildner var->data = malloc(sizeof(char *) * (count + 1));
96*479ab7f0SSascha Wildner var->data[count] = NULL;
97*479ab7f0SSascha Wildner while (--count >= 0)
98*479ab7f0SSascha Wildner var->data[count] = strdup(ovar->data[count]);
99*479ab7f0SSascha Wildner return (var);
100*479ab7f0SSascha Wildner }
101*479ab7f0SSascha Wildner
102*479ab7f0SSascha Wildner void
dvar_unset(const char * name)103*479ab7f0SSascha Wildner dvar_unset(const char *name)
104*479ab7f0SSascha Wildner {
105*479ab7f0SSascha Wildner dvar_t *lastp;
106*479ab7f0SSascha Wildner dvar_t var;
107*479ab7f0SSascha Wildner char *p;
108*479ab7f0SSascha Wildner
109*479ab7f0SSascha Wildner lastp = &dvbase;
110*479ab7f0SSascha Wildner if ((p = strchr(name, '*')) != NULL) {
111*479ab7f0SSascha Wildner while ((var = *lastp) != NULL) {
112*479ab7f0SSascha Wildner if (strlen(var->name) >= p - name &&
113*479ab7f0SSascha Wildner strncmp(var->name, name, p - name) == 0) {
114*479ab7f0SSascha Wildner dvar_free(lastp);
115*479ab7f0SSascha Wildner } else {
116*479ab7f0SSascha Wildner lastp = &var->next;
117*479ab7f0SSascha Wildner }
118*479ab7f0SSascha Wildner }
119*479ab7f0SSascha Wildner } else {
120*479ab7f0SSascha Wildner while ((var = *lastp) != NULL) {
121*479ab7f0SSascha Wildner if (strcmp(name, var->name) == 0) {
122*479ab7f0SSascha Wildner dvar_free(lastp);
123*479ab7f0SSascha Wildner break;
124*479ab7f0SSascha Wildner }
125*479ab7f0SSascha Wildner lastp = &var->next;
126*479ab7f0SSascha Wildner }
127*479ab7f0SSascha Wildner }
128*479ab7f0SSascha Wildner }
129*479ab7f0SSascha Wildner
130*479ab7f0SSascha Wildner dvar_t
dvar_first(void)131*479ab7f0SSascha Wildner dvar_first(void)
132*479ab7f0SSascha Wildner {
133*479ab7f0SSascha Wildner return(dvbase);
134*479ab7f0SSascha Wildner }
135*479ab7f0SSascha Wildner
136*479ab7f0SSascha Wildner dvar_t
dvar_next(dvar_t var)137*479ab7f0SSascha Wildner dvar_next(dvar_t var)
138*479ab7f0SSascha Wildner {
139*479ab7f0SSascha Wildner return(var->next);
140*479ab7f0SSascha Wildner }
141*479ab7f0SSascha Wildner
142*479ab7f0SSascha Wildner dvar_t *
dvar_firstp(void)143*479ab7f0SSascha Wildner dvar_firstp(void)
144*479ab7f0SSascha Wildner {
145*479ab7f0SSascha Wildner return(&dvbase);
146*479ab7f0SSascha Wildner }
147*479ab7f0SSascha Wildner
148*479ab7f0SSascha Wildner dvar_t *
dvar_nextp(dvar_t var)149*479ab7f0SSascha Wildner dvar_nextp(dvar_t var)
150*479ab7f0SSascha Wildner {
151*479ab7f0SSascha Wildner return(&var->next);
152*479ab7f0SSascha Wildner }
153*479ab7f0SSascha Wildner
154*479ab7f0SSascha Wildner void
dvar_free(dvar_t * lastp)155*479ab7f0SSascha Wildner dvar_free(dvar_t *lastp)
156*479ab7f0SSascha Wildner {
157*479ab7f0SSascha Wildner dvar_t dvar = *lastp;
158*479ab7f0SSascha Wildner
159*479ab7f0SSascha Wildner if (dvlastp == &dvar->next)
160*479ab7f0SSascha Wildner dvlastp = lastp;
161*479ab7f0SSascha Wildner *lastp = dvar->next;
162*479ab7f0SSascha Wildner while (--dvar->count >= 0)
163*479ab7f0SSascha Wildner free(dvar->data[dvar->count]);
164*479ab7f0SSascha Wildner free(dvar->data);
165*479ab7f0SSascha Wildner free(dvar);
166*479ab7f0SSascha Wildner }
167*479ab7f0SSascha Wildner
168*479ab7f0SSascha Wildner int
dvar_istrue(dvar_t var)169*479ab7f0SSascha Wildner dvar_istrue(dvar_t var)
170*479ab7f0SSascha Wildner {
171*479ab7f0SSascha Wildner int retval = 0;
172*479ab7f0SSascha Wildner
173*479ab7f0SSascha Wildner if (var != NULL && (strcasecmp(var->data[0], "yes") == 0 ||
174*479ab7f0SSascha Wildner strcasecmp(var->data[0], "true") == 0 ||
175*479ab7f0SSascha Wildner strcasecmp(var->data[0], "on") == 0 ||
176*479ab7f0SSascha Wildner strcasecmp(var->data[0], "1") == 0))
177*479ab7f0SSascha Wildner retval = 1;
178*479ab7f0SSascha Wildner
179*479ab7f0SSascha Wildner return (retval);
180*479ab7f0SSascha Wildner }
181