Moving charon to libcharon.

2010-03-19 13:34:52 +01:00
parent 7c11d10eb8
commit 08c5572602
480 changed files with 0 additions and 0 deletions
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2008 Martin Willi
+ * Copyright (C) 2008 Thomas Kallenberg
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include "uci_parser.h"
+
+#include <stdarg.h>
+
+#include <library.h>
+#include <uci.h>
+
+typedef struct private_uci_parser_t private_uci_parser_t;
+
+/**
+ * Private data of an uci_parser_t object
+ */
+struct private_uci_parser_t {
+
+	/**
+	 * Public part
+	 */
+	uci_parser_t public;
+
+	/**
+	 * UCI package name this parser reads
+	 */
+	char *package;
+};
+
+/**
+ * enumerator implementation create_section_enumerator
+ */
+typedef struct {
+	/** implements enumerator */
+	enumerator_t public;
+	/** currently enumerated uci section */
+	struct uci_element *current;
+	/** all uci ipsec config sections */
+	struct uci_list *list;
+	/** uci conntext */
+	struct uci_context *ctx;
+	/** ipsec uci package */
+	struct uci_package *package;
+	/** NULL terminated list of keywords */
+	char *keywords[];
+} section_enumerator_t;
+
+/**
+ * Implementation of section_enumerator_t.enumerate
+ */
+static bool section_enumerator_enumerate(section_enumerator_t *this, ...)
+{
+	struct uci_element *element;
+	char **value;
+	va_list args;
+	int i;
+
+	if (&this->current->list == this->list)
+	{
+		return FALSE;
+	}
+
+	va_start(args, this);
+
+	value = va_arg(args, char**);
+	if (value)
+	{
+		if (uci_lookup(this->ctx, &element, this->package,
+					   this->current->name, "name") == UCI_OK)
+		{	/* use "name" attribute as config name if available ... */
+			*value = uci_to_option(element)->value;
+		}
+		else
+		{	/* ... or the section name becomes config name */
+			*value = uci_to_section(this->current)->type;
+		}
+	}
+
+	/* followed by keyword parameters */
+	for (i = 0; this->keywords[i]; i++)
+	{
+		value = va_arg(args, char**);
+		if (value && uci_lookup(this->ctx, &element, this->package,
+						  this->current->name, this->keywords[i]) == UCI_OK)
+		{
+			*value = uci_to_option(element)->value;
+		}
+	}
+	va_end(args);
+
+	this->current = list_to_element(this->current->list.next);
+	return TRUE;
+}
+
+/**
+ * Implementation of section_enumerator_t.public.destroy
+ */
+static void section_enumerator_destroy(section_enumerator_t *this)
+{
+	uci_free_context(this->ctx);
+	free(this);
+}
+
+/**
+ * Implementation of backend_t.create_section_enumerator.
+ */
+static enumerator_t* create_section_enumerator(private_uci_parser_t *this, ...)
+{
+	section_enumerator_t *e;
+	va_list args;
+	int i;
+
+	/* allocate enumerator large enought to hold keyword pointers */
+	i = 1;
+	va_start(args, this);
+	while (va_arg(args, char*))
+	{
+		i++;
+	}
+	va_end(args);
+	e = malloc(sizeof(section_enumerator_t) + sizeof(char*) * i);
+	i = 0;
+	va_start(args, this);
+	do
+	{
+		e->keywords[i] = va_arg(args, char*);
+	}
+	while (e->keywords[i++]);
+	va_end(args);
+
+	e->public.enumerate = (void*)section_enumerator_enumerate;
+	e->public.destroy = (void*)section_enumerator_destroy;
+
+	/* load uci context */
+	e->ctx = uci_alloc_context();
+	if (uci_load(e->ctx, this->package, &e->package) != UCI_OK)
+	{
+		section_enumerator_destroy(e);
+		return NULL;
+	}
+	e->list = &e->package->sections;
+	e->current = list_to_element(e->list->next);
+	if (e->current->type != UCI_TYPE_SECTION)
+	{
+		section_enumerator_destroy(e);
+		return NULL;
+	}
+	return &e->public;
+}
+
+/**
+ * Implementation of uci_parser_t.destroy.
+ */
+static void destroy(private_uci_parser_t *this)
+{
+	free(this->package);
+	free(this);
+}
+
+/**
+ * Described in header.
+ */
+uci_parser_t *uci_parser_create(char *package)
+{
+	private_uci_parser_t *this = malloc_thing(private_uci_parser_t);
+
+	this->public.create_section_enumerator = (enumerator_t*(*)(uci_parser_t*, ...))create_section_enumerator;
+	this->public.destroy = (void(*)(uci_parser_t*))destroy;
+
+	this->package = strdup(package);
+
+	return &this->public;
+}
+