[PATCH 4/4] obexd: phonebook: Workaround for PTS client not sending mandatory apparams

[Dylan Van Assche <me@dylanvanassche.be>]

From: Hannu Mallat <hmallat@gmail.com>

Some PTS clients do not send all the mandatory apparams
when retrieving the phonebook. Clients such as car multimedia systems
cannot be fixed, therefore working around this issue by inserting
default apparams which makes these clients work as well.

Cherry-picked from https://github.com/sailfishos/bluez5/commit/e8001df26e1964ddb98d02ad27ab8f909ffe2f17

Co-authored-by: Dylan Van Assche <me@dylanvanassche.be>
Signed-off-by: Dylan Van Assche <me@dylanvanassche.be>
---
 obexd/plugins/pbap.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/obexd/plugins/pbap.c b/obexd/plugins/pbap.c
index efae92cd8..ab5236316 100644
--- a/obexd/plugins/pbap.c
+++ b/obexd/plugins/pbap.c
@@ -511,6 +511,21 @@ static int pbap_get(struct obex_session *os, void *user_data)
 		rsize = 0;
 	}
 
+	/* Workaround for PTS client not sending mandatory apparams */
+	if (!rsize && g_ascii_strcasecmp(type, VCARDLISTING_TYPE) == 0) {
+		static const uint8_t default_apparams[] = {
+			0x04, 0x02, 0xff, 0xff
+		};
+		buffer = default_apparams;
+		rsize = sizeof(default_apparams);
+	} else if (!rsize && g_ascii_strcasecmp(type, VCARDENTRY_TYPE) == 0) {
+		static const uint8_t default_apparams[] = {
+			0x07, 0x01, 0x00
+		};
+		buffer = default_apparams;
+		rsize = sizeof(default_apparams);
+	}
+
 	params = parse_aparam(buffer, rsize);
 	if (params == NULL)
 		return -EBADR;
-- 
2.32.0