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props: remove pointers in property values in protocol

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Mark pointers in property values with pointer: and remove them
when sending the properties over the wire to avoid errors.
This commit is contained in:
Wim Taymans 2019-07-11 12:52:55 +02:00
parent f8127943cd
commit 0e765de519
9 changed files with 166 additions and 147 deletions
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66
src/modules/module-client-device/protocol-native.c
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@ -30,6 +30,40 @@
#include <extensions/protocol-native.h>
static inline void push_item(struct spa_pod_builder *b, const struct spa_dict_item *item)
{
const char *str;
spa_pod_builder_string(b, item->key);
str = item->value;
if (strstr(str, "pointer:") == str)
str = "";
spa_pod_builder_string(b, str);
}
static inline int parse_item(struct spa_pod_parser *prs, struct spa_dict_item *item)
{
int res;
if ((res = spa_pod_parser_get(prs,
SPA_POD_String(&item->key),
SPA_POD_String(&item->value),
NULL)) < 0)
return res;
if (strstr(item->value, "pointer:") == item->value)
item->value = "";
return 0;
}
static inline int parse_dict(struct spa_pod_parser *prs, struct spa_dict *dict)
{
uint32_t i;
int res;
for (i = 0; i < dict->n_items; i++) {
if ((res = parse_item(prs, (struct spa_dict_item *) &dict->items[i])) < 0)
return res;
}
return 0;
}
static int device_marshal_add_listener(void *object,
struct spa_hook *listener,
const struct spa_device_events *events,
@ -179,11 +213,8 @@ static void device_marshal_info(void *object,
SPA_POD_Long(change_mask),
SPA_POD_Long(info->flags),
SPA_POD_Int(n_items), NULL);
for (i = 0; i < n_items; i++) {
spa_pod_builder_add(b,
SPA_POD_String(info->props->items[i].key),
SPA_POD_String(info->props->items[i].value), NULL);
}
for (i = 0; i < n_items; i++)
push_item(b, &info->props->items[i]);
spa_pod_builder_add(b,
SPA_POD_Int(info->n_params), NULL);
for (i = 0; i < info->n_params; i++) {
@ -238,12 +269,8 @@ static int device_demarshal_info(void *object,
info.props = &props;
props.items = alloca(props.n_items * sizeof(struct spa_dict_item));
for (i = 0; i < props.n_items; i++) {
if (spa_pod_parser_get(&p2,
SPA_POD_String(&props.items[i].key),
SPA_POD_String(&props.items[i].value), NULL) < 0)
return -EINVAL;
}
if (parse_dict(&p2, &props) < 0)
return -EINVAL;
}
if (spa_pod_parser_get(&p2,
SPA_POD_Int(&info.n_params), NULL) < 0)
@ -400,11 +427,8 @@ static void device_marshal_object_info(void *object, uint32_t id,
SPA_POD_Long(change_mask),
SPA_POD_Long(info->flags),
SPA_POD_Int(n_items), NULL);
for (i = 0; i < n_items; i++) {
spa_pod_builder_add(b,
SPA_POD_String(info->props->items[i].key),
SPA_POD_String(info->props->items[i].value), NULL);
}
for (i = 0; i < n_items; i++)
push_item(b, &info->props->items[i]);
spa_pod_builder_pop(b, &f[1]);
} else {
spa_pod_builder_add(b,
@ -423,7 +447,7 @@ static int device_demarshal_object_info(void *object,
struct spa_device_object_info info = SPA_DEVICE_OBJECT_INFO_INIT(), *infop;
struct spa_pod *ipod;
struct spa_dict props;
uint32_t i, id;
uint32_t id;
spa_pod_parser_init(&prs, msg->data, msg->size);
if (spa_pod_parser_get_struct(&prs,
@ -452,12 +476,8 @@ static int device_demarshal_object_info(void *object,
info.props = &props;
props.items = alloca(props.n_items * sizeof(struct spa_dict_item));
for (i = 0; i < props.n_items; i++) {
if (spa_pod_parser_get(&p2,
SPA_POD_String(&props.items[i].key),
SPA_POD_String(&props.items[i].value), NULL) < 0)
return -EINVAL;
}
if (parse_dict(&p2, &props) < 0)
return -EINVAL;
}
} else {
infop = NULL;