diff options
| -rw-r--r-- | attrib/gattrib.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/attrib/gattrib.c b/attrib/gattrib.c index 514fc8f5f..201135961 100644 --- a/attrib/gattrib.c +++ b/attrib/gattrib.c @@ -429,9 +429,24 @@ guint g_attrib_register(GAttrib *attrib, guint8 opcode, guint16 handle, uint8_t *g_attrib_get_buffer(GAttrib *attrib, size_t *len) { + uint16_t mtu; + if (!attrib || !len) return NULL; + mtu = bt_att_get_mtu(attrib->att); + + /* + * Clients of this expect a buffer to use. + * + * Pdu encoding in shared/att verifies if whole buffer fits the mtu, + * thus we should set the buflen also when mtu is reduced. But we + * need to reallocate the buffer only if mtu is larger. + */ + if (mtu > attrib->buflen) + attrib->buf = g_realloc(attrib->buf, mtu); + + attrib->buflen = mtu; *len = attrib->buflen; return attrib->buf; } |