Do not wipe block misc on bootloader msg update

When set_bootloader_message_block() is called, it fopens /misc in write
binary mode, wiping all contents other than what is being written. The
bootloader msg structure is only 1024+32+32 bytes, so some manufacturers
store more than just a bootloader msg on /misc. fopen in read+append
mode so that only the bootloader msg is written and the rest of the
partition is left untouched.

Change-Id: I2d2fbdf067282744864a19d404ca7dc12f688a98
Allow custom bootloader msg offset in block misc

Use board define BOARD_RECOVERY_BLDRMSG_OFFSET with a decimal integer
to define a custom offset where the bootloader message should be
read/written.

Change-Id: Id13a23dd41bb7d907b96d657b8e21eb839dfeaa9

Conflicts:
	Android.mk
Set SELinux security contexts correctly for init and services.

Otherwise everything is left running in the kernel domain when
booting recovery.

Change-Id: Ie3d86547d5be0b68dd1875a97afe1e00fc3e4da1
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Add seclabel to minivold

Change-Id: Ia5662f4543e4fbb32b02216b64a2f261e22beb25
adbd: switch to su domain when running as root

When adbd runs as root, it should transition into the
su domain. This is needed to run the adbd and shell
domains in enforcing on userdebug / eng devices without
breaking developer workflows.

Use the new device_banner command line option.

Change-Id: Ib33c0dd2dd6172035230514ac84fcaed2ecf44d6
minadbd: remove dead code

Change-Id: Ia1f34a17ae582575f8cd3514ed7bc015b0a5006e
recovery: fix building with pointer-to-int errors turned on

Use intptr_t/uintptr_t to cast between pointer and int to allow
building with -Werror=pointer-to-int-cast and
Werror=int-to-pointer-cast turned on.

Cast to char* instead of unsigned int for pointer arithmetic.

Conflicts:
	minui/graphics.c

Change-Id: Ia862306fdcca53866b330e8cf726f3d62f2248a0
add --shutdown_after option to recovery

The "--shutdown_after" option causes recovery to power down the device
on completion rather than rebooting.

Removes the last vestiges of the "--previous_runs" argument, which
doesn't seem to be used for anything.

Conflicts:
	recovery.c

Change-Id: I465eda2ef59d367e2b1c79a8dc69831263c69a4d
fix vulnerability in bspatch

Patches with control data tuples with negative numbers in the first
and/or second can cause bspatch to write to arbitrary locations in the
heap.

Change-Id: I8c5d81948be773e6483241131d3d166b6da27cb8
exit instead of return if sideload file creation fails

A return here leaves adb sideload in a permanent loop. An exit is
more appropriate for this error.

Change-Id: I80fb8abae4f6378833aa75f9eaf7ec1acd44b274
Signed-off-by: Ethan Yonker <ethanayonker@gmail.com>