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json: improve json parsing

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spa_json_get_string() will never write more than maxlen.
Use spa_json_parse_stringn() to perform destination length checking.
This commit is contained in:
Wim Taymans
2022-01-04 16:36:15 +01:00
parent 071ad0e43f
commit 4896ad0680
3 changed files with 6 additions and 7 deletions
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5
modules/module-route-settings-api.c
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@@ -80,7 +80,7 @@ wp_route_settings_api_convert (WpRouteSettingsApi * self,
if (spa_json_enter_object(&it[0], &it[1]) <= 0)
return NULL;
while (spa_json_get_string(&it[1], k, sizeof(k)-1) > 0) {
while (spa_json_get_string(&it[1], k, sizeof(k)) > 0) {
int len;
const char *value;
@@ -98,9 +98,8 @@ wp_route_settings_api_convert (WpRouteSettingsApi * self,
str = g_string_new("");
while ((len = spa_json_next(&it[2], &value)) > 0) {
char v[1024];
if (len > 1023)
if (spa_json_parse_stringn(value, len, v, sizeof(v)) < 0)
continue;
spa_json_parse_string(value, len, v);
g_string_append_printf(str, "%s;", v);
}
return g_string_free(str, false);