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[qwaq] Validate window before acquiring string

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If the window is invalid and recovery is done, string ids will leak if
acquired before validation.

Afterwards, make the rest of the builtin wrappers consistent: extract
parameters, validate, [acquire resources], generate command.
This commit is contained in:
Bill Currie 2020-02-29 12:33:45 +09:00
parent 0119660b01
commit ea69921e6a
1 changed files with 11 additions and 9 deletions
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20
tools/qwaq/qwaq-curses.c
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@ -452,9 +452,10 @@ bi_destroy_window (progs_t *pr)
{
qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
int window_id = P_INT (pr, 0);
int command[] = { qwaq_cmd_destroy_window, 0, window_id, };
if (get_window (res, __FUNCTION__, window_id)) {
int command[] = { qwaq_cmd_destroy_window, 0, window_id, };
command[1] = CMD_SIZE(command);
if (RB_SPACE_AVAILABLE (res->command_queue) >= CMD_SIZE(command)) {
@ -468,9 +469,10 @@ bi_create_panel (progs_t *pr)
{
qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
int window_id = P_INT (pr, 0);
int command[] = { qwaq_cmd_create_panel, 0, window_id, };
if (get_window (res, __FUNCTION__, window_id)) {
int command[] = { qwaq_cmd_create_panel, 0, window_id, };
command[1] = CMD_SIZE(command);
if (RB_SPACE_AVAILABLE (res->command_queue) >= CMD_SIZE(command)) {
@ -514,14 +516,14 @@ bi_mvwprintf (progs_t *pr)
int count = pr->pr_argc - 4;
pr_type_t **args = pr->pr_params + 4;
int string_id = acquire_string (res);
dstring_t *print_buffer = res->strings + string_id;
int command[] = {
qwaq_cmd_mvwprint, 0,
window_id, x, y, string_id
};
if (get_window (res, __FUNCTION__, window_id)) {
int string_id = acquire_string (res);
dstring_t *print_buffer = res->strings + string_id;
int command[] = {
qwaq_cmd_mvwprint, 0,
window_id, x, y, string_id
};
command[1] = CMD_SIZE(command);
dstring_clearstr (print_buffer);