merge new_loader_completion branch, including (at least):

- restructured build tree and makefiles to eliminate recursion problems
  - support for embedded modules
  - support for static builds
  - simpler cross-compilation support
  - simpler module/loader interface (no exported symbols)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@40722 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/chanvars.c

@@ -0,0 +1,86 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 1999 - 2005, Digium, Inc.
+ *
+ * Mark Spencer <markster@digium.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file
+ *
+ * \brief Channel Variables
+ *
+ * \author Mark Spencer <markster@digium.com> 
+ */
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "asterisk/chanvars.h"
+#include "asterisk/logger.h"
+#include "asterisk/strings.h"
+#include "asterisk/utils.h"
+
+struct ast_var_t *ast_var_assign(const char *name, const char *value)
+{	
+	struct ast_var_t *var;
+	int name_len = strlen(name) + 1;
+	int value_len = strlen(value) + 1;
+
+	if (!(var = ast_calloc(sizeof(*var) + name_len + value_len, sizeof(char)))) {
+		return NULL;
+	}
+
+	ast_copy_string(var->name, name, name_len);
+	var->value = var->name + name_len;
+	ast_copy_string(var->value, value, value_len);
+	
+	return var;
+}	
+	
+void ast_var_delete(struct ast_var_t *var)
+{
+	if (var)
+		free(var);
+}
+
+const char *ast_var_name(const struct ast_var_t *var)
+{
+	const char *name;
+
+	if (var == NULL || (name = var->name) == NULL)
+		return NULL;
+	/* Return the name without the initial underscores */
+	if (name[0] == '_') {
+		name++;
+		if (name[0] == '_')
+			name++;
+	}
+	return name;
+}
+
+const char *ast_var_full_name(const struct ast_var_t *var)
+{
+	return (var ? var->name : NULL);
+}
+
+const char *ast_var_value(const struct ast_var_t *var)
+{
+	return (var ? var->value : NULL);
+}
+
+