num_options += count_option_parameters(list);
dest = qemu_realloc(dest, (num_options + 1) * sizeof(QEMUOptionParameter));
+ dest[num_dest_options].name = NULL;
while (list && list->name) {
if (get_option_parameter(dest, list->name) == NULL) {
/*
* Parses a parameter string (param) into an option list (dest).
*
- * list is the templace is. If dest is NULL, a new copy of list is created for
- * it. If list is NULL, this function fails.
+ * list is the template option list. If dest is NULL, a new copy of list is
+ * created. If list is NULL, this function fails.
*
* A parameter string consists of one or more parameters, separated by commas.
* Each parameter consists of its name and possibly of a value. In the latter
char value[256];
char *param_delim, *value_delim;
char next_delim;
- size_t num_options;
if (list == NULL) {
return NULL;
}
if (dest == NULL) {
- // Count valid options
- num_options = count_option_parameters(list);
-
- // Create a copy of the option list to fill in values
- dest = qemu_mallocz((num_options + 1) * sizeof(QEMUOptionParameter));
- allocated = dest;
- memcpy(dest, list, (num_options + 1) * sizeof(QEMUOptionParameter));
+ dest = allocated = append_option_parameters(NULL, list);
}
while (*param) {
return NULL;
}
+static int id_wellformed(const char *id)
+{
+ int i;
+
+ if (!qemu_isalpha(id[0])) {
+ return 0;
+ }
+ for (i = 1; id[i]; i++) {
+ if (!qemu_isalnum(id[i]) && !strchr("-._", id[i])) {
+ return 0;
+ }
+ }
+ return 1;
+}
+
QemuOpts *qemu_opts_create(QemuOptsList *list, const char *id, int fail_if_exists)
{
QemuOpts *opts = NULL;
if (id) {
+ if (!id_wellformed(id)) {
+ qerror_report(QERR_INVALID_PARAMETER_VALUE, "id", "an identifier");
+ error_printf_unless_qmp("Identifiers consist of letters, digits, '-', '.', '_', starting with a letter.\n");
+ return NULL;
+ }
opts = qemu_opts_find(list, id);
if (opts != NULL) {
if (fail_if_exists) {
return opts;
}
+void qemu_opts_reset(QemuOptsList *list)
+{
+ QemuOpts *opts, *next_opts;
+
+ QTAILQ_FOREACH_SAFE(opts, &list->head, next, next_opts) {
+ qemu_opts_del(opts);
+ }
+}
+
+void qemu_opts_loc_restore(QemuOpts *opts)
+{
+ loc_restore(&opts->loc);
+}
+
int qemu_opts_set(QemuOptsList *list, const char *id,
const char *name, const char *value)
{