commit 4a2a1914a2bbe97ed55aa7b0e000aa4c6c8cb1ca
author bigbiff bigbiff <bigbiff@teamw.in> Sat Jun 03 10:55:46 2017 -0400
committer Dees Troy <dees_troy@teamw.in> Sun Jun 04 04:30:09 2017 +0200
tree b05d21e7ce1b1f603e5069b8d30ffac336542cc7
parent 05c2de4c688ef34c80dc6df249acf0e661d5f23d

adbbackup: write smaller reads less than 512 bytes

This will allow the gzip compression header to be
written properly to the adb stream.

Thanks to nkk71 for finding the issue.
Change-Id: I3d88c5f575ca3fac904d8279f1f246994be2b02f

adbbu/twrpback.cpp

diff --git a/adbbu/twrpback.cpp b/adbbu/twrpback.cpp
index d9b973b..1c98a1b 100644
--- a/adbbu/twrpback.cpp
+++ b/adbbu/twrpback.cpp
@@ -330,7 +330,7 @@
 		//to the adb stream.
 		//If the stream is compressed, we need to always write the data.
 		if (writedata || compressed) {
-			while ((bytes = read(adb_read_fd, &result, sizeof(result))) == MAX_ADB_READ) {
+			while ((bytes = read(adb_read_fd, &result, sizeof(result))) > 0) {
 				if (firstDataPacket) {
 					struct AdbBackupControlType data_block;