PawletOS/android_bootable_recovery
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Make it backwards compatible with 4.4

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Change-Id: I668604cddc8e8afbf78709f3f872bea4e9f4aa06
This commit is contained in:
Ethan Yonker
2016-08-25 15:32:21 -05:00
parent 34ae483e02
commit f117962eb2
25 changed files with 741 additions and 61 deletions
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19
bootloader.cpp
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@@ -32,7 +32,7 @@ extern "C" {
#include "common.h"
#include "mtdutils/mtdutils.h"
//#include "roots.h"
#include "unique_fd.h"
//#include "unique_fd.h"
// fake Volume struct that allows us to use the AOSP code easily
struct Volume
@@ -232,33 +232,36 @@ static int get_bootloader_message_block(bootloader_message* out,
static int set_bootloader_message_block(const bootloader_message* in,
const Volume* v) {
wait_for_device(v->blk_device);
unique_fd fd(open(v->blk_device, O_WRONLY | O_SYNC));
if (fd.get() == -1) {
int fd = open(v->blk_device, O_WRONLY | O_SYNC);
if (fd == -1) {
LOGE("failed to open \"%s\": %s\n", v->blk_device, strerror(errno));
return -1;
}
#ifdef BOARD_RECOVERY_BLDRMSG_OFFSET
lseek(fd.get(), BOARD_RECOVERY_BLDRMSG_OFFSET, SEEK_SET);
lseek(fd, BOARD_RECOVERY_BLDRMSG_OFFSET, SEEK_SET);
#endif
size_t written = 0;
const uint8_t* start = reinterpret_cast<const uint8_t*>(in);
size_t total = sizeof(*in);
while (written < total) {
ssize_t wrote = TEMP_FAILURE_RETRY(write(fd.get(), start + written, total - written));
ssize_t wrote = TEMP_FAILURE_RETRY(write(fd, start + written, total - written));
if (wrote == -1) {
LOGE("failed to write %" PRId64 " bytes: %s\n",
static_cast<off64_t>(written), strerror(errno));
LOGE("failed to write some bytes: %s\n",
strerror(errno));
close(fd);
return -1;
}
written += wrote;
}
if (fsync(fd.get()) == -1) {
if (fsync(fd) == -1) {
LOGE("failed to fsync \"%s\": %s\n", v->blk_device, strerror(errno));
close(fd);
return -1;
}
close(fd);
return 0;
}