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Serialize text size on 4 bytes

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This will allow to send text having a size greater than 65535 bytes.
This commit is contained in:
Romain Vimont
2020-06-04 21:42:09 +02:00
parent d91c5dcfd5
commit 245999aec4
10 changed files with 40 additions and 36 deletions
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10
app/src/device_msg.c
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@@ -9,7 +9,7 @@
ssize_t
device_msg_deserialize(const unsigned char *buf, size_t len,
struct device_msg *msg) {
if (len < 3) {
if (len < 5) {
// at least type + empty string length
return 0; // not available
}
@@ -17,8 +17,8 @@ device_msg_deserialize(const unsigned char *buf, size_t len,
msg->type = buf[0];
switch (msg->type) {
case DEVICE_MSG_TYPE_CLIPBOARD: {
uint16_t clipboard_len = buffer_read16be(&buf[1]);
if (clipboard_len > len - 3) {
size_t clipboard_len = buffer_read32be(&buf[1]);
if (clipboard_len > len - 5) {
return 0; // not available
}
char *text = SDL_malloc(clipboard_len + 1);
@@ -27,12 +27,12 @@ device_msg_deserialize(const unsigned char *buf, size_t len,
return -1;
}
if (clipboard_len) {
memcpy(text, &buf[3], clipboard_len);
memcpy(text, &buf[5], clipboard_len);
}
text[clipboard_len] = '\0';
msg->clipboard.text = text;
return 3 + clipboard_len;
return 5 + clipboard_len;
}
default:
LOGW("Unknown device message type: %d", (int) msg->type);