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/*
* String parsing visitor
*
* Copyright Red Hat, Inc. 2012
*
* Author: Paolo Bonzini <pbonzini@redhat.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
* See the COPYING.LIB file in the top-level directory.
*
*/
#include "qemu-common.h"
#include "qapi/string-input-visitor.h"
#include "qapi/visitor-impl.h"
#include "qapi/qmp/qerror.h"
#include "qemu/option.h"
struct StringInputVisitor
{
Visitor visitor;
const char *string;
};
static void parse_type_int(Visitor *v, int64_t *obj, const char *name,
Error **errp)
{
StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
char *endp = (char *) siv->string;
long long val;
errno = 0;
if (siv->string) {
val = strtoll(siv->string, &endp, 0);
}
if (!siv->string || errno || endp == siv->string || *endp) {
error_set(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
"integer");
return;
}
*obj = val;
}
static void parse_type_size(Visitor *v, uint64_t *obj, const char *name,
Error **errp)
{
StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
Error *err = NULL;
uint64_t val;
if (siv->string) {
parse_option_size(name, siv->string, &val, &err);
} else {
error_set(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
"size");
return;
}
if (err) {
error_propagate(errp, err);
return;
}
*obj = val;
}
static void parse_type_bool(Visitor *v, bool *obj, const char *name,
Error **errp)
{
StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
if (siv->string) {
if (!strcasecmp(siv->string, "on") ||
!strcasecmp(siv->string, "yes") ||
!strcasecmp(siv->string, "true")) {
*obj = true;
return;
}
if (!strcasecmp(siv->string, "off") ||
!strcasecmp(siv->string, "no") ||
!strcasecmp(siv->string, "false")) {
*obj = false;
return;
}
}
error_set(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
"boolean");
}
static void parse_type_str(Visitor *v, char **obj, const char *name,
Error **errp)
{
StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
if (siv->string) {
*obj = g_strdup(siv->string);
} else {
error_set(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
"string");
}
}
static void parse_type_number(Visitor *v, double *obj, const char *name,
Error **errp)
{
StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
char *endp = (char *) siv->string;
double val;
errno = 0;
if (siv->string) {
val = strtod(siv->string, &endp);
}
if (!siv->string || errno || endp == siv->string || *endp) {
error_set(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
"number");
return;
}
*obj = val;
}
static void parse_optional(Visitor *v, bool *present, const char *name,
Error **errp)
{
StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
if (!siv->string) {
*present = false;
return;
}
*present = true;
}
Visitor *string_input_get_visitor(StringInputVisitor *v)
{
return &v->visitor;
}
void string_input_visitor_cleanup(StringInputVisitor *v)
{
g_free(v);
}
StringInputVisitor *string_input_visitor_new(const char *str)
{
StringInputVisitor *v;
v = g_malloc0(sizeof(*v));
v->visitor.type_enum = input_type_enum;
v->visitor.type_int = parse_type_int;
v->visitor.type_size = parse_type_size;
v->visitor.type_bool = parse_type_bool;
v->visitor.type_str = parse_type_str;
v->visitor.type_number = parse_type_number;
v->visitor.optional = parse_optional;
v->string = str;
return v;
}
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