From 4a77478c13b35e311922d05f0866adce817a0d6a Mon Sep 17 00:00:00 2001
From: Li Beinan
Date: Sat, 27 Jun 2020 20:51:04 +0800
Subject: idevice: Fix mistreatment of 0-byte sent cases

Currently if 0 byte gets sent, it is treated as not-enough-data.
This is wrong, because with TCP, 0-byte-sent usually means the
receiver end is closed. We must set a new case for this and must
not normalize the sent-bytes to 0 in general.
---
 src/idevice.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/idevice.c b/src/idevice.c
index d6c1d06..f64570b 100644
--- a/src/idevice.c
+++ b/src/idevice.c
@@ -650,7 +650,10 @@ LIBIMOBILEDEVICE_API idevice_error_t idevice_connection_send(idevice_connection_
 		}
 		debug_info("len %d, sent %d", len, sent);
 		if (sent < len) {
-			*sent_bytes = 0;
+			*sent_bytes = sent;
+			if (sent == 0) {
+				return IDEVICE_E_UNKNOWN_ERROR;
+			}
 			return IDEVICE_E_NOT_ENOUGH_DATA;
 		}
 		*sent_bytes = sent;
-- 
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