2 * Copyright (c) 2010, Olivier MATZ <zer0@droids-corp.org>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the University of California, Berkeley nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 #include <sys/queue.h>
35 #include "expression.h"
36 #include "conf_parser.h"
37 #include "conf_htable.h"
38 #include "parser_common.h"
39 #include "dotconfig.h"
42 static int confnode_menuconfig_new(struct confnode *n, const struct line *line);
43 static int confnode_menuconfig_close_dir(struct confnode *parent,
44 const struct line *line);
45 static int confnode_menuconfig_dotconfig_write(const struct confnode *n, FILE *f);
46 static int confnode_menuconfig_set_user_strvalue(struct confnode *n,
47 const char *strvalue);
48 static int confnode_menuconfig_get_user_strvalue(const struct confnode *n, char *buf,
50 static int confnode_menuconfig_set_default_strvalue(struct confnode *n,
51 const char *strvalue);
52 static int confnode_menuconfig_get_default_strvalue(const struct confnode *n, char *buf,
54 static const char *confnode_menuconfig_get_type_str(const struct confnode *n);
55 static void confnode_menuconfig_display_short(const struct confnode *n);
57 static struct confnode_type confnode_menuconfig = {
59 .new = confnode_menuconfig_new,
62 .close_dir = confnode_menuconfig_close_dir,
63 .dotconfig_write = confnode_menuconfig_dotconfig_write,
64 .strvalue_to_boolvalue = NULL,
65 .set_user_strvalue = confnode_menuconfig_set_user_strvalue,
66 .get_user_strvalue = confnode_menuconfig_get_user_strvalue,
67 .set_default_strvalue = confnode_menuconfig_set_default_strvalue,
68 .get_default_strvalue = confnode_menuconfig_get_default_strvalue,
69 .get_type_str = confnode_menuconfig_get_type_str,
70 .display_short = confnode_menuconfig_display_short,
75 /* Create a new node */
76 static int confnode_menuconfig_new(struct confnode *n, const struct line *line)
79 tok = TAILQ_FIRST(&line->token_list);
81 if (strcmp(tok->str, "menuconfig") || line->n_token != 2)
84 tok = TAILQ_NEXT(tok, next);
85 snprintf(n->name, sizeof(n->name), "%s", tok->str);
86 n->ops = &confnode_menuconfig.ops;
87 n->flags = CONFNODE_F_IS_DIR |
88 CONFNODE_F_FORCE_CHILD_DEPS |
93 /* Parse a line and check if it closes the current node ,
94 * "endmenu" closes "menu" node): in this case return 0. Else, return
96 static int confnode_menuconfig_close_dir(struct confnode *parent,
97 const struct line *line)
101 tok = TAILQ_FIRST(&line->token_list);
103 return -1; /* should not happen */
105 /* syntax is: endmenuconfig */
106 if (!strcmp(tok->str, "endmenuconfig") && line->n_token == 1) {
107 //printf("endmenuconfig\n");
113 /* write config value in file f in a dotconfig-like manner. Return 0
115 static int confnode_menuconfig_dotconfig_write(const struct confnode *n, FILE *f)
117 const struct confnode *c;
120 if (fprintf(f, "#\n# -- %s\n#\n", n->prompt) < 0)
123 val = confnode_get_value(n, NULL, 0);
128 if (fprintf(f, "# CONFIG_%s is not set\n", n->name) < 0)
133 if (fprintf(f, "CONFIG_%s=y\n", n->name) < 0)
136 TAILQ_FOREACH(c, &n->children, next) {
137 if (confnode_dotconfig_write(c, f) < 0)
143 /* Set the string value of the node n. Return 0 on success, or -1 if
144 * the value cannot be set. */
145 static int confnode_menuconfig_set_user_strvalue(struct confnode *n,
146 const char *strvalue)
148 if (strcmp(strvalue, "y") && strcmp(strvalue, "n"))
150 snprintf(n->value, sizeof(n->value), "%s", strvalue);
154 /* Get the string value that the user asked to set for this node
155 * 'n'. This function does not check if dependancies are met. Return 0
156 * on success, in this case the string is copied in buffer 'buf' of
157 * len 'buflen'. Return -1 if the value cannot be read. */
158 static int confnode_menuconfig_get_user_strvalue(const struct confnode *n, char *buf,
161 if (strcmp(n->value, "") == 0)
163 if (!strcmp(n->value, "y")) {
164 snprintf(buf, buflen, "y");
168 snprintf(buf, buflen, "n");
173 /* Set the default string value of the node n. Return 0 on success, or
174 * -1 if the value cannot be set. */
175 static int confnode_menuconfig_set_default_strvalue(struct confnode *n,
176 const char *strvalue)
178 if (strcmp(strvalue, "y") && strcmp(strvalue, "n"))
180 snprintf(n->default_value, sizeof(n->default_value), "%s", strvalue);
184 /* Get the default string value for this node 'n'. This function does
185 * not check if dependancies are met. Return 0 on success, in this
186 * case the string is copied in buffer 'buf' of len 'buflen'. Return
187 * -1 if the value cannot be read. */
188 static int confnode_menuconfig_get_default_strvalue(const struct confnode *n, char *buf,
191 if (!strcmp(n->default_value, "y")) {
192 snprintf(buf, buflen, "y");
196 snprintf(buf, buflen, "n");
201 /* Return a string identifying the node type ("config", "menuconfig",
203 static const char *confnode_menuconfig_get_type_str(const struct confnode *n)
208 /* Print a one-line summary of the node. Used in case of 'ls'. */
209 static void confnode_menuconfig_display_short(const struct confnode *n)
212 if (confnode_get_boolvalue(n) == 0) {
213 if (confnode_get_user_boolvalue(n) <= 0)
222 printf("[%c] -> %s: %s\n", c, n->name, n->prompt);
225 /* register the node type */
226 void confnode_menuconfig_register(void)
228 TAILQ_INSERT_TAIL(&confnode_type_list, &confnode_menuconfig, next);