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-rw-r--r--libs/utils/BackupData.cpp20
1 files changed, 18 insertions, 2 deletions
diff --git a/libs/utils/BackupData.cpp b/libs/utils/BackupData.cpp
index be04777..0cef35a 100644
--- a/libs/utils/BackupData.cpp
+++ b/libs/utils/BackupData.cpp
@@ -193,9 +193,11 @@ BackupDataReader::Status()
if ((actual) != (expected)) { \
if ((actual) == 0) { \
m_status = EIO; \
+ m_done = true; \
} else { \
m_status = errno; \
} \
+ LOGD("CHECK_SIZE failed with at line %d m_status='%s'", __LINE__, strerror(m_status)); \
return m_status; \
} \
} while(0)
@@ -203,6 +205,7 @@ BackupDataReader::Status()
do { \
status_t err = skip_padding(); \
if (err != NO_ERROR) { \
+ LOGD("SKIP_PADDING FAILED at line %d", __LINE__); \
m_status = err; \
return err; \
} \
@@ -218,10 +221,19 @@ BackupDataReader::ReadNextHeader(bool* done, int* type)
int amt;
- // No error checking here, in case we're at the end of the stream. Just let read() fail.
- skip_padding();
+ amt = skip_padding();
+ if (amt == EIO) {
+ *done = m_done = true;
+ return NO_ERROR;
+ }
+ else if (amt != NO_ERROR) {
+ return amt;
+ }
amt = read(m_fd, &m_header, sizeof(m_header));
*done = m_done = (amt == 0);
+ if (*done) {
+ return NO_ERROR;
+ }
CHECK_SIZE(amt, sizeof(m_header));
m_pos += sizeof(m_header);
if (type) {
@@ -327,6 +339,10 @@ BackupDataReader::ReadEntityData(void* data, size_t size)
m_status = errno;
return -1;
}
+ if (amt == 0) {
+ m_status = EIO;
+ m_done = true;
+ }
m_pos += amt;
return amt;
}