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-rw-r--r--applypatch/Android.mk75
-rw-r--r--applypatch/Makefile33
-rw-r--r--applypatch/applypatch.cpp316
-rw-r--r--applypatch/bsdiff.cpp410
-rw-r--r--applypatch/bspatch.cpp3
-rw-r--r--applypatch/freecache.cpp2
-rw-r--r--applypatch/imgdiff.cpp41
-rw-r--r--applypatch/imgpatch.cpp12
-rw-r--r--applypatch/include/applypatch/applypatch.h (renamed from applypatch/applypatch.h)1
-rw-r--r--applypatch/libimgpatch.pc6
-rw-r--r--applypatch/main.cpp10
-rw-r--r--applypatch/utils.cpp20
-rw-r--r--applypatch/utils.h5
13 files changed, 237 insertions, 697 deletions
diff --git a/applypatch/Android.mk b/applypatch/Android.mk
index 887a570db..604787e78 100644
--- a/applypatch/Android.mk
+++ b/applypatch/Android.mk
@@ -14,61 +14,86 @@
LOCAL_PATH := $(call my-dir)
+# libapplypatch (static library)
+# ===============================
include $(CLEAR_VARS)
-
LOCAL_CLANG := true
-LOCAL_SRC_FILES := applypatch.cpp bspatch.cpp freecache.cpp imgpatch.cpp utils.cpp
+LOCAL_SRC_FILES := \
+ applypatch.cpp \
+ bspatch.cpp \
+ freecache.cpp \
+ imgpatch.cpp \
+ utils.cpp
LOCAL_MODULE := libapplypatch
LOCAL_MODULE_TAGS := eng
-LOCAL_C_INCLUDES += bootable/recovery
-LOCAL_STATIC_LIBRARIES += libbase libotafault libmtdutils libcrypto_static libbz libz
-
+LOCAL_C_INCLUDES += \
+ $(LOCAL_PATH)/include \
+ bootable/recovery
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+LOCAL_STATIC_LIBRARIES += \
+ libotafault \
+ libbase \
+ libcrypto \
+ libbz \
+ libz
include $(BUILD_STATIC_LIBRARY)
+# libimgpatch (static library)
+# ===============================
include $(CLEAR_VARS)
-
LOCAL_CLANG := true
LOCAL_SRC_FILES := bspatch.cpp imgpatch.cpp utils.cpp
LOCAL_MODULE := libimgpatch
-LOCAL_C_INCLUDES += bootable/recovery
+LOCAL_C_INCLUDES += \
+ $(LOCAL_PATH)/include \
+ bootable/recovery
LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-LOCAL_STATIC_LIBRARIES += libcrypto_static libbz libz
-
+LOCAL_STATIC_LIBRARIES += libcrypto libbz libz
include $(BUILD_STATIC_LIBRARY)
-ifeq ($(HOST_OS),linux)
+# libimgpatch (host static library)
+# ===============================
include $(CLEAR_VARS)
-
LOCAL_CLANG := true
LOCAL_SRC_FILES := bspatch.cpp imgpatch.cpp utils.cpp
LOCAL_MODULE := libimgpatch
-LOCAL_C_INCLUDES += bootable/recovery
+LOCAL_MODULE_HOST_OS := linux
+LOCAL_C_INCLUDES += \
+ $(LOCAL_PATH)/include \
+ bootable/recovery
LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-LOCAL_STATIC_LIBRARIES += libcrypto_static libbz libz
-
+LOCAL_STATIC_LIBRARIES += libcrypto libbz libz
include $(BUILD_HOST_STATIC_LIBRARY)
-endif # HOST_OS == linux
+# applypatch (executable)
+# ===============================
include $(CLEAR_VARS)
-
LOCAL_CLANG := true
LOCAL_SRC_FILES := main.cpp
LOCAL_MODULE := applypatch
LOCAL_C_INCLUDES += bootable/recovery
-LOCAL_STATIC_LIBRARIES += libapplypatch libbase libotafault libmtdutils libcrypto_static libbz \
- libedify \
-
+LOCAL_STATIC_LIBRARIES += \
+ libapplypatch \
+ libbase \
+ libedify \
+ libotafault \
+ libminzip \
+ libcrypto \
+ libbz
LOCAL_SHARED_LIBRARIES += libz libcutils libc
-
include $(BUILD_EXECUTABLE)
+# imgdiff (host static executable)
+# ===============================
include $(CLEAR_VARS)
-
LOCAL_CLANG := true
-LOCAL_SRC_FILES := imgdiff.cpp utils.cpp bsdiff.cpp
+LOCAL_SRC_FILES := imgdiff.cpp utils.cpp
LOCAL_MODULE := imgdiff
+LOCAL_STATIC_LIBRARIES += \
+ libbsdiff \
+ libbz \
+ libdivsufsort64 \
+ libdivsufsort \
+ libz
LOCAL_FORCE_STATIC_EXECUTABLE := true
-LOCAL_C_INCLUDES += external/zlib external/bzip2
-LOCAL_STATIC_LIBRARIES += libz libbz
-
include $(BUILD_HOST_EXECUTABLE)
diff --git a/applypatch/Makefile b/applypatch/Makefile
new file mode 100644
index 000000000..fb4984303
--- /dev/null
+++ b/applypatch/Makefile
@@ -0,0 +1,33 @@
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is for building imgdiff in Chrome OS.
+
+CPPFLAGS += -iquote.. -Iinclude
+CXXFLAGS += -std=c++11 -O3 -Wall -Werror
+LDLIBS += -lbz2 -lz
+
+.PHONY: all clean
+
+all: imgdiff libimgpatch.a
+
+clean:
+ rm -f *.o imgdiff libimgpatch.a
+
+imgdiff: imgdiff.o bsdiff.o utils.o
+ $(CXX) $(CPPFLAGS) $(CXXFLAGS) $(LDLIBS) -o $@ $^
+
+libimgpatch.a utils.o: CXXFLAGS += -fPIC
+libimgpatch.a: imgpatch.o bspatch.o utils.o
+ ${AR} rcs $@ $^
diff --git a/applypatch/applypatch.cpp b/applypatch/applypatch.cpp
index 7985fc0c6..02a3c6e41 100644
--- a/applypatch/applypatch.cpp
+++ b/applypatch/applypatch.cpp
@@ -31,8 +31,7 @@
#include <android-base/strings.h>
#include "openssl/sha.h"
-#include "applypatch.h"
-#include "mtdutils/mtdutils.h"
+#include "applypatch/applypatch.h"
#include "edify/expr.h"
#include "ota_io.h"
#include "print_sha1.h"
@@ -49,17 +48,14 @@ static int GenerateTarget(FileContents* source_file,
size_t target_size,
const Value* bonus_data);
-static bool mtd_partitions_scanned = false;
-
// Read a file into memory; store the file contents and associated
// metadata in *file.
//
// Return 0 on success.
int LoadFileContents(const char* filename, FileContents* file) {
- // A special 'filename' beginning with "MTD:" or "EMMC:" means to
+ // A special 'filename' beginning with "EMMC:" means to
// load the contents of a partition.
- if (strncmp(filename, "MTD:", 4) == 0 ||
- strncmp(filename, "EMMC:", 5) == 0) {
+ if (strncmp(filename, "EMMC:", 5) == 0) {
return LoadPartitionContents(filename, file);
}
@@ -77,7 +73,7 @@ int LoadFileContents(const char* filename, FileContents* file) {
size_t bytes_read = ota_fread(data.data(), 1, data.size(), f);
if (bytes_read != data.size()) {
- printf("short read of \"%s\" (%zu bytes of %zd)\n", filename, bytes_read, data.size());
+ printf("short read of \"%s\" (%zu bytes of %zu)\n", filename, bytes_read, data.size());
ota_fclose(f);
return -1;
}
@@ -87,10 +83,9 @@ int LoadFileContents(const char* filename, FileContents* file) {
return 0;
}
-// Load the contents of an MTD or EMMC partition into the provided
+// Load the contents of an EMMC partition into the provided
// FileContents. filename should be a string of the form
-// "MTD:<partition_name>:<size_1>:<sha1_1>:<size_2>:<sha1_2>:..." (or
-// "EMMC:<partition_device>:..."). The smallest size_n bytes for
+// "EMMC:<partition_device>:...". The smallest size_n bytes for
// which that prefix of the partition contents has the corresponding
// sha1 hash will be loaded. It is acceptable for a size value to be
// repeated with different sha1s. Will return 0 on success.
@@ -102,8 +97,6 @@ int LoadFileContents(const char* filename, FileContents* file) {
// "end-of-file" marker), so the caller must specify the possible
// lengths and the hash of the data, and we'll do the load expecting
// to find one of those hashes.
-enum PartitionType { MTD, EMMC };
-
static int LoadPartitionContents(const char* filename, FileContents* file) {
std::string copy(filename);
std::vector<std::string> pieces = android::base::Split(copy, ":");
@@ -112,12 +105,7 @@ static int LoadPartitionContents(const char* filename, FileContents* file) {
return -1;
}
- enum PartitionType type;
- if (pieces[0] == "MTD") {
- type = MTD;
- } else if (pieces[0] == "EMMC") {
- type = EMMC;
- } else {
+ if (pieces[0] != "EMMC") {
printf("LoadPartitionContents called with bad filename (%s)\n", filename);
return -1;
}
@@ -145,36 +133,10 @@ static int LoadPartitionContents(const char* filename, FileContents* file) {
}
);
- MtdReadContext* ctx = NULL;
- FILE* dev = NULL;
-
- switch (type) {
- case MTD: {
- if (!mtd_partitions_scanned) {
- mtd_scan_partitions();
- mtd_partitions_scanned = true;
- }
-
- const MtdPartition* mtd = mtd_find_partition_by_name(partition);
- if (mtd == NULL) {
- printf("mtd partition \"%s\" not found (loading %s)\n", partition, filename);
- return -1;
- }
-
- ctx = mtd_read_partition(mtd);
- if (ctx == NULL) {
- printf("failed to initialize read of mtd partition \"%s\"\n", partition);
- return -1;
- }
- break;
- }
-
- case EMMC:
- dev = ota_fopen(partition, "rb");
- if (dev == NULL) {
- printf("failed to open emmc partition \"%s\": %s\n", partition, strerror(errno));
- return -1;
- }
+ FILE* dev = ota_fopen(partition, "rb");
+ if (dev == NULL) {
+ printf("failed to open emmc partition \"%s\": %s\n", partition, strerror(errno));
+ return -1;
}
SHA_CTX sha_ctx;
@@ -192,16 +154,7 @@ static int LoadPartitionContents(const char* filename, FileContents* file) {
// we're trying the possibilities in order of increasing size).
size_t next = size[index[i]] - data_size;
if (next > 0) {
- size_t read = 0;
- switch (type) {
- case MTD:
- read = mtd_read_data(ctx, p, next);
- break;
-
- case EMMC:
- read = ota_fread(p, 1, next, dev);
- break;
- }
+ size_t read = ota_fread(p, 1, next, dev);
if (next != read) {
printf("short read (%zu bytes of %zu) for partition \"%s\"\n",
read, next, partition);
@@ -234,16 +187,7 @@ static int LoadPartitionContents(const char* filename, FileContents* file) {
}
}
- switch (type) {
- case MTD:
- mtd_read_close(ctx);
- break;
-
- case EMMC:
- ota_fclose(dev);
- break;
- }
-
+ ota_fclose(dev);
if (!found) {
// Ran off the end of the list of (size,sha1) pairs without finding a match.
@@ -302,7 +246,7 @@ int SaveFileContents(const char* filename, const FileContents* file) {
}
// Write a memory buffer to 'target' partition, a string of the form
-// "MTD:<partition>[:...]" or "EMMC:<partition_device>[:...]". The target name
+// "EMMC:<partition_device>[:...]". The target name
// might contain multiple colons, but WriteToPartition() only uses the first
// two and ignores the rest. Return 0 on success.
int WriteToPartition(const unsigned char* data, size_t len, const char* target) {
@@ -314,165 +258,117 @@ int WriteToPartition(const unsigned char* data, size_t len, const char* target)
return -1;
}
- enum PartitionType type;
- if (pieces[0] == "MTD") {
- type = MTD;
- } else if (pieces[0] == "EMMC") {
- type = EMMC;
- } else {
+ if (pieces[0] != "EMMC") {
printf("WriteToPartition called with bad target (%s)\n", target);
return -1;
}
const char* partition = pieces[1].c_str();
- switch (type) {
- case MTD: {
- if (!mtd_partitions_scanned) {
- mtd_scan_partitions();
- mtd_partitions_scanned = true;
- }
-
- const MtdPartition* mtd = mtd_find_partition_by_name(partition);
- if (mtd == NULL) {
- printf("mtd partition \"%s\" not found for writing\n", partition);
- return -1;
- }
-
- MtdWriteContext* ctx = mtd_write_partition(mtd);
- if (ctx == NULL) {
- printf("failed to init mtd partition \"%s\" for writing\n", partition);
- return -1;
- }
+ size_t start = 0;
+ bool success = false;
+ int fd = ota_open(partition, O_RDWR | O_SYNC);
+ if (fd < 0) {
+ printf("failed to open %s: %s\n", partition, strerror(errno));
+ return -1;
+ }
- size_t written = mtd_write_data(ctx, reinterpret_cast<const char*>(data), len);
- if (written != len) {
- printf("only wrote %zu of %zu bytes to MTD %s\n", written, len, partition);
- mtd_write_close(ctx);
- return -1;
- }
+ for (size_t attempt = 0; attempt < 2; ++attempt) {
+ if (TEMP_FAILURE_RETRY(lseek(fd, start, SEEK_SET)) == -1) {
+ printf("failed seek on %s: %s\n", partition, strerror(errno));
+ return -1;
+ }
+ while (start < len) {
+ size_t to_write = len - start;
+ if (to_write > 1<<20) to_write = 1<<20;
- if (mtd_erase_blocks(ctx, -1) < 0) {
- printf("error finishing mtd write of %s\n", partition);
- mtd_write_close(ctx);
+ ssize_t written = TEMP_FAILURE_RETRY(ota_write(fd, data+start, to_write));
+ if (written == -1) {
+ printf("failed write writing to %s: %s\n", partition, strerror(errno));
return -1;
}
+ start += written;
+ }
+ if (ota_fsync(fd) != 0) {
+ printf("failed to sync to %s (%s)\n", partition, strerror(errno));
+ return -1;
+ }
+ if (ota_close(fd) != 0) {
+ printf("failed to close %s (%s)\n", partition, strerror(errno));
+ return -1;
+ }
+ fd = ota_open(partition, O_RDONLY);
+ if (fd < 0) {
+ printf("failed to reopen %s for verify (%s)\n", partition, strerror(errno));
+ return -1;
+ }
- if (mtd_write_close(ctx)) {
- printf("error closing mtd write of %s\n", partition);
- return -1;
- }
- break;
+ // Drop caches so our subsequent verification read
+ // won't just be reading the cache.
+ sync();
+ int dc = ota_open("/proc/sys/vm/drop_caches", O_WRONLY);
+ if (TEMP_FAILURE_RETRY(ota_write(dc, "3\n", 2)) == -1) {
+ printf("write to /proc/sys/vm/drop_caches failed: %s\n", strerror(errno));
+ } else {
+ printf(" caches dropped\n");
}
+ ota_close(dc);
+ sleep(1);
- case EMMC: {
- size_t start = 0;
- bool success = false;
- int fd = ota_open(partition, O_RDWR | O_SYNC);
- if (fd < 0) {
- printf("failed to open %s: %s\n", partition, strerror(errno));
- return -1;
+ // verify
+ if (TEMP_FAILURE_RETRY(lseek(fd, 0, SEEK_SET)) == -1) {
+ printf("failed to seek back to beginning of %s: %s\n",
+ partition, strerror(errno));
+ return -1;
+ }
+ unsigned char buffer[4096];
+ start = len;
+ for (size_t p = 0; p < len; p += sizeof(buffer)) {
+ size_t to_read = len - p;
+ if (to_read > sizeof(buffer)) {
+ to_read = sizeof(buffer);
}
- for (size_t attempt = 0; attempt < 2; ++attempt) {
- if (TEMP_FAILURE_RETRY(lseek(fd, start, SEEK_SET)) == -1) {
- printf("failed seek on %s: %s\n", partition, strerror(errno));
+ size_t so_far = 0;
+ while (so_far < to_read) {
+ ssize_t read_count =
+ TEMP_FAILURE_RETRY(ota_read(fd, buffer+so_far, to_read-so_far));
+ if (read_count == -1) {
+ printf("verify read error %s at %zu: %s\n",
+ partition, p, strerror(errno));
return -1;
}
- while (start < len) {
- size_t to_write = len - start;
- if (to_write > 1<<20) to_write = 1<<20;
-
- ssize_t written = TEMP_FAILURE_RETRY(ota_write(fd, data+start, to_write));
- if (written == -1) {
- printf("failed write writing to %s: %s\n", partition, strerror(errno));
- return -1;
- }
- start += written;
- }
- if (ota_fsync(fd) != 0) {
- printf("failed to sync to %s (%s)\n", partition, strerror(errno));
- return -1;
- }
- if (ota_close(fd) != 0) {
- printf("failed to close %s (%s)\n", partition, strerror(errno));
- return -1;
- }
- fd = ota_open(partition, O_RDONLY);
- if (fd < 0) {
- printf("failed to reopen %s for verify (%s)\n", partition, strerror(errno));
- return -1;
- }
-
- // Drop caches so our subsequent verification read
- // won't just be reading the cache.
- sync();
- int dc = ota_open("/proc/sys/vm/drop_caches", O_WRONLY);
- if (TEMP_FAILURE_RETRY(ota_write(dc, "3\n", 2)) == -1) {
- printf("write to /proc/sys/vm/drop_caches failed: %s\n", strerror(errno));
- } else {
- printf(" caches dropped\n");
- }
- ota_close(dc);
- sleep(1);
-
- // verify
- if (TEMP_FAILURE_RETRY(lseek(fd, 0, SEEK_SET)) == -1) {
- printf("failed to seek back to beginning of %s: %s\n",
- partition, strerror(errno));
- return -1;
- }
- unsigned char buffer[4096];
- start = len;
- for (size_t p = 0; p < len; p += sizeof(buffer)) {
- size_t to_read = len - p;
- if (to_read > sizeof(buffer)) {
- to_read = sizeof(buffer);
- }
-
- size_t so_far = 0;
- while (so_far < to_read) {
- ssize_t read_count =
- TEMP_FAILURE_RETRY(ota_read(fd, buffer+so_far, to_read-so_far));
- if (read_count == -1) {
- printf("verify read error %s at %zu: %s\n",
- partition, p, strerror(errno));
- return -1;
- }
- if (static_cast<size_t>(read_count) < to_read) {
- printf("short verify read %s at %zu: %zd %zu %s\n",
- partition, p, read_count, to_read, strerror(errno));
- }
- so_far += read_count;
- }
-
- if (memcmp(buffer, data+p, to_read) != 0) {
- printf("verification failed starting at %zu\n", p);
- start = p;
- break;
- }
- }
-
- if (start == len) {
- printf("verification read succeeded (attempt %zu)\n", attempt+1);
- success = true;
- break;
+ if (static_cast<size_t>(read_count) < to_read) {
+ printf("short verify read %s at %zu: %zd %zu %s\n",
+ partition, p, read_count, to_read, strerror(errno));
}
+ so_far += read_count;
}
- if (!success) {
- printf("failed to verify after all attempts\n");
- return -1;
+ if (memcmp(buffer, data+p, to_read) != 0) {
+ printf("verification failed starting at %zu\n", p);
+ start = p;
+ break;
}
+ }
- if (ota_close(fd) != 0) {
- printf("error closing %s (%s)\n", partition, strerror(errno));
- return -1;
- }
- sync();
+ if (start == len) {
+ printf("verification read succeeded (attempt %zu)\n", attempt+1);
+ success = true;
break;
}
}
+ if (!success) {
+ printf("failed to verify after all attempts\n");
+ return -1;
+ }
+
+ if (ota_close(fd) != 0) {
+ printf("error closing %s (%s)\n", partition, strerror(errno));
+ return -1;
+ }
+ sync();
+
return 0;
}
@@ -596,7 +492,7 @@ size_t FreeSpaceForFile(const char* filename) {
int CacheSizeCheck(size_t bytes) {
if (MakeFreeSpaceOnCache(bytes) < 0) {
- printf("unable to make %ld bytes available on /cache\n", (long)bytes);
+ printf("unable to make %zu bytes available on /cache\n", bytes);
return 1;
} else {
return 0;
@@ -729,7 +625,7 @@ int applypatch_flash(const char* source_filename, const char* target_filename,
std::string target_str(target_filename);
std::vector<std::string> pieces = android::base::Split(target_str, ":");
- if (pieces.size() != 2 || (pieces[0] != "MTD" && pieces[0] != "EMMC")) {
+ if (pieces.size() != 2 || pieces[0] != "EMMC") {
printf("invalid target name \"%s\"", target_filename);
return 1;
}
@@ -778,8 +674,7 @@ static int GenerateTarget(FileContents* source_file,
FileContents* source_to_use;
int made_copy = 0;
- bool target_is_partition = (strncmp(target_filename, "MTD:", 4) == 0 ||
- strncmp(target_filename, "EMMC:", 5) == 0);
+ bool target_is_partition = (strncmp(target_filename, "EMMC:", 5) == 0);
const std::string tmp_target_filename = std::string(target_filename) + ".patch";
// assume that target_filename (eg "/system/app/Foo.apk") is located
@@ -860,8 +755,7 @@ static int GenerateTarget(FileContents* source_file,
// copy the source file to cache, then delete it from the original
// location.
- if (strncmp(source_filename, "MTD:", 4) == 0 ||
- strncmp(source_filename, "EMMC:", 5) == 0) {
+ if (strncmp(source_filename, "EMMC:", 5) == 0) {
// It's impossible to free space on the target filesystem by
// deleting the source if the source is a partition. If
// we're ever in a state where we need to do this, fail.
@@ -897,7 +791,7 @@ static int GenerateTarget(FileContents* source_file,
} else {
// We write the decoded output to "<tgt-file>.patch".
output_fd = ota_open(tmp_target_filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_SYNC,
- S_IRUSR | S_IWUSR);
+ S_IRUSR | S_IWUSR);
if (output_fd < 0) {
printf("failed to open output file %s: %s\n", tmp_target_filename.c_str(),
strerror(errno));
diff --git a/applypatch/bsdiff.cpp b/applypatch/bsdiff.cpp
deleted file mode 100644
index 55dbe5cf1..000000000
--- a/applypatch/bsdiff.cpp
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Most of this code comes from bsdiff.c from the bsdiff-4.3
- * distribution, which is:
- */
-
-/*-
- * Copyright 2003-2005 Colin Percival
- * All rights reserved
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted providing that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <sys/types.h>
-
-#include <bzlib.h>
-#include <err.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#define MIN(x,y) (((x)<(y)) ? (x) : (y))
-
-static void split(off_t *I,off_t *V,off_t start,off_t len,off_t h)
-{
- off_t i,j,k,x,tmp,jj,kk;
-
- if(len<16) {
- for(k=start;k<start+len;k+=j) {
- j=1;x=V[I[k]+h];
- for(i=1;k+i<start+len;i++) {
- if(V[I[k+i]+h]<x) {
- x=V[I[k+i]+h];
- j=0;
- };
- if(V[I[k+i]+h]==x) {
- tmp=I[k+j];I[k+j]=I[k+i];I[k+i]=tmp;
- j++;
- };
- };
- for(i=0;i<j;i++) V[I[k+i]]=k+j-1;
- if(j==1) I[k]=-1;
- };
- return;
- };
-
- x=V[I[start+len/2]+h];
- jj=0;kk=0;
- for(i=start;i<start+len;i++) {
- if(V[I[i]+h]<x) jj++;
- if(V[I[i]+h]==x) kk++;
- };
- jj+=start;kk+=jj;
-
- i=start;j=0;k=0;
- while(i<jj) {
- if(V[I[i]+h]<x) {
- i++;
- } else if(V[I[i]+h]==x) {
- tmp=I[i];I[i]=I[jj+j];I[jj+j]=tmp;
- j++;
- } else {
- tmp=I[i];I[i]=I[kk+k];I[kk+k]=tmp;
- k++;
- };
- };
-
- while(jj+j<kk) {
- if(V[I[jj+j]+h]==x) {
- j++;
- } else {
- tmp=I[jj+j];I[jj+j]=I[kk+k];I[kk+k]=tmp;
- k++;
- };
- };
-
- if(jj>start) split(I,V,start,jj-start,h);
-
- for(i=0;i<kk-jj;i++) V[I[jj+i]]=kk-1;
- if(jj==kk-1) I[jj]=-1;
-
- if(start+len>kk) split(I,V,kk,start+len-kk,h);
-}
-
-static void qsufsort(off_t *I,off_t *V,u_char *old,off_t oldsize)
-{
- off_t buckets[256];
- off_t i,h,len;
-
- for(i=0;i<256;i++) buckets[i]=0;
- for(i=0;i<oldsize;i++) buckets[old[i]]++;
- for(i=1;i<256;i++) buckets[i]+=buckets[i-1];
- for(i=255;i>0;i--) buckets[i]=buckets[i-1];
- buckets[0]=0;
-
- for(i=0;i<oldsize;i++) I[++buckets[old[i]]]=i;
- I[0]=oldsize;
- for(i=0;i<oldsize;i++) V[i]=buckets[old[i]];
- V[oldsize]=0;
- for(i=1;i<256;i++) if(buckets[i]==buckets[i-1]+1) I[buckets[i]]=-1;
- I[0]=-1;
-
- for(h=1;I[0]!=-(oldsize+1);h+=h) {
- len=0;
- for(i=0;i<oldsize+1;) {
- if(I[i]<0) {
- len-=I[i];
- i-=I[i];
- } else {
- if(len) I[i-len]=-len;
- len=V[I[i]]+1-i;
- split(I,V,i,len,h);
- i+=len;
- len=0;
- };
- };
- if(len) I[i-len]=-len;
- };
-
- for(i=0;i<oldsize+1;i++) I[V[i]]=i;
-}
-
-static off_t matchlen(u_char *olddata,off_t oldsize,u_char *newdata,off_t newsize)
-{
- off_t i;
-
- for(i=0;(i<oldsize)&&(i<newsize);i++)
- if(olddata[i]!=newdata[i]) break;
-
- return i;
-}
-
-static off_t search(off_t *I,u_char *old,off_t oldsize,
- u_char *newdata,off_t newsize,off_t st,off_t en,off_t *pos)
-{
- off_t x,y;
-
- if(en-st<2) {
- x=matchlen(old+I[st],oldsize-I[st],newdata,newsize);
- y=matchlen(old+I[en],oldsize-I[en],newdata,newsize);
-
- if(x>y) {
- *pos=I[st];
- return x;
- } else {
- *pos=I[en];
- return y;
- }
- };
-
- x=st+(en-st)/2;
- if(memcmp(old+I[x],newdata,MIN(oldsize-I[x],newsize))<0) {
- return search(I,old,oldsize,newdata,newsize,x,en,pos);
- } else {
- return search(I,old,oldsize,newdata,newsize,st,x,pos);
- };
-}
-
-static void offtout(off_t x,u_char *buf)
-{
- off_t y;
-
- if(x<0) y=-x; else y=x;
-
- buf[0]=y%256;y-=buf[0];
- y=y/256;buf[1]=y%256;y-=buf[1];
- y=y/256;buf[2]=y%256;y-=buf[2];
- y=y/256;buf[3]=y%256;y-=buf[3];
- y=y/256;buf[4]=y%256;y-=buf[4];
- y=y/256;buf[5]=y%256;y-=buf[5];
- y=y/256;buf[6]=y%256;y-=buf[6];
- y=y/256;buf[7]=y%256;
-
- if(x<0) buf[7]|=0x80;
-}
-
-// This is main() from bsdiff.c, with the following changes:
-//
-// - old, oldsize, newdata, newsize are arguments; we don't load this
-// data from files. old and newdata are owned by the caller; we
-// don't free them at the end.
-//
-// - the "I" block of memory is owned by the caller, who passes a
-// pointer to *I, which can be NULL. This way if we call
-// bsdiff() multiple times with the same 'old' data, we only do
-// the qsufsort() step the first time.
-//
-int bsdiff(u_char* old, off_t oldsize, off_t** IP, u_char* newdata, off_t newsize,
- const char* patch_filename)
-{
- int fd;
- off_t *I;
- off_t scan,pos,len;
- off_t lastscan,lastpos,lastoffset;
- off_t oldscore,scsc;
- off_t s,Sf,lenf,Sb,lenb;
- off_t overlap,Ss,lens;
- off_t i;
- off_t dblen,eblen;
- u_char *db,*eb;
- u_char buf[8];
- u_char header[32];
- FILE * pf;
- BZFILE * pfbz2;
- int bz2err;
-
- if (*IP == NULL) {
- off_t* V;
- *IP = reinterpret_cast<off_t*>(malloc((oldsize+1) * sizeof(off_t)));
- V = reinterpret_cast<off_t*>(malloc((oldsize+1) * sizeof(off_t)));
- qsufsort(*IP, V, old, oldsize);
- free(V);
- }
- I = *IP;
-
- if(((db=reinterpret_cast<u_char*>(malloc(newsize+1)))==NULL) ||
- ((eb=reinterpret_cast<u_char*>(malloc(newsize+1)))==NULL)) err(1,NULL);
- dblen=0;
- eblen=0;
-
- /* Create the patch file */
- if ((pf = fopen(patch_filename, "w")) == NULL)
- err(1, "%s", patch_filename);
-
- /* Header is
- 0 8 "BSDIFF40"
- 8 8 length of bzip2ed ctrl block
- 16 8 length of bzip2ed diff block
- 24 8 length of new file */
- /* File is
- 0 32 Header
- 32 ?? Bzip2ed ctrl block
- ?? ?? Bzip2ed diff block
- ?? ?? Bzip2ed extra block */
- memcpy(header,"BSDIFF40",8);
- offtout(0, header + 8);
- offtout(0, header + 16);
- offtout(newsize, header + 24);
- if (fwrite(header, 32, 1, pf) != 1)
- err(1, "fwrite(%s)", patch_filename);
-
- /* Compute the differences, writing ctrl as we go */
- if ((pfbz2 = BZ2_bzWriteOpen(&bz2err, pf, 9, 0, 0)) == NULL)
- errx(1, "BZ2_bzWriteOpen, bz2err = %d", bz2err);
- scan=0;len=0;
- lastscan=0;lastpos=0;lastoffset=0;
- while(scan<newsize) {
- oldscore=0;
-
- for(scsc=scan+=len;scan<newsize;scan++) {
- len=search(I,old,oldsize,newdata+scan,newsize-scan,
- 0,oldsize,&pos);
-
- for(;scsc<scan+len;scsc++)
- if((scsc+lastoffset<oldsize) &&
- (old[scsc+lastoffset] == newdata[scsc]))
- oldscore++;
-
- if(((len==oldscore) && (len!=0)) ||
- (len>oldscore+8)) break;
-
- if((scan+lastoffset<oldsize) &&
- (old[scan+lastoffset] == newdata[scan]))
- oldscore--;
- };
-
- if((len!=oldscore) || (scan==newsize)) {
- s=0;Sf=0;lenf=0;
- for(i=0;(lastscan+i<scan)&&(lastpos+i<oldsize);) {
- if(old[lastpos+i]==newdata[lastscan+i]) s++;
- i++;
- if(s*2-i>Sf*2-lenf) { Sf=s; lenf=i; };
- };
-
- lenb=0;
- if(scan<newsize) {
- s=0;Sb=0;
- for(i=1;(scan>=lastscan+i)&&(pos>=i);i++) {
- if(old[pos-i]==newdata[scan-i]) s++;
- if(s*2-i>Sb*2-lenb) { Sb=s; lenb=i; };
- };
- };
-
- if(lastscan+lenf>scan-lenb) {
- overlap=(lastscan+lenf)-(scan-lenb);
- s=0;Ss=0;lens=0;
- for(i=0;i<overlap;i++) {
- if(newdata[lastscan+lenf-overlap+i]==
- old[lastpos+lenf-overlap+i]) s++;
- if(newdata[scan-lenb+i]==
- old[pos-lenb+i]) s--;
- if(s>Ss) { Ss=s; lens=i+1; };
- };
-
- lenf+=lens-overlap;
- lenb-=lens;
- };
-
- for(i=0;i<lenf;i++)
- db[dblen+i]=newdata[lastscan+i]-old[lastpos+i];
- for(i=0;i<(scan-lenb)-(lastscan+lenf);i++)
- eb[eblen+i]=newdata[lastscan+lenf+i];
-
- dblen+=lenf;
- eblen+=(scan-lenb)-(lastscan+lenf);
-
- offtout(lenf,buf);
- BZ2_bzWrite(&bz2err, pfbz2, buf, 8);
- if (bz2err != BZ_OK)
- errx(1, "BZ2_bzWrite, bz2err = %d", bz2err);
-
- offtout((scan-lenb)-(lastscan+lenf),buf);
- BZ2_bzWrite(&bz2err, pfbz2, buf, 8);
- if (bz2err != BZ_OK)
- errx(1, "BZ2_bzWrite, bz2err = %d", bz2err);
-
- offtout((pos-lenb)-(lastpos+lenf),buf);
- BZ2_bzWrite(&bz2err, pfbz2, buf, 8);
- if (bz2err != BZ_OK)
- errx(1, "BZ2_bzWrite, bz2err = %d", bz2err);
-
- lastscan=scan-lenb;
- lastpos=pos-lenb;
- lastoffset=pos-scan;
- };
- };
- BZ2_bzWriteClose(&bz2err, pfbz2, 0, NULL, NULL);
- if (bz2err != BZ_OK)
- errx(1, "BZ2_bzWriteClose, bz2err = %d", bz2err);
-
- /* Compute size of compressed ctrl data */
- if ((len = ftello(pf)) == -1)
- err(1, "ftello");
- offtout(len-32, header + 8);
-
- /* Write compressed diff data */
- if ((pfbz2 = BZ2_bzWriteOpen(&bz2err, pf, 9, 0, 0)) == NULL)
- errx(1, "BZ2_bzWriteOpen, bz2err = %d", bz2err);
- BZ2_bzWrite(&bz2err, pfbz2, db, dblen);
- if (bz2err != BZ_OK)
- errx(1, "BZ2_bzWrite, bz2err = %d", bz2err);
- BZ2_bzWriteClose(&bz2err, pfbz2, 0, NULL, NULL);
- if (bz2err != BZ_OK)
- errx(1, "BZ2_bzWriteClose, bz2err = %d", bz2err);
-
- /* Compute size of compressed diff data */
- if ((newsize = ftello(pf)) == -1)
- err(1, "ftello");
- offtout(newsize - len, header + 16);
-
- /* Write compressed extra data */
- if ((pfbz2 = BZ2_bzWriteOpen(&bz2err, pf, 9, 0, 0)) == NULL)
- errx(1, "BZ2_bzWriteOpen, bz2err = %d", bz2err);
- BZ2_bzWrite(&bz2err, pfbz2, eb, eblen);
- if (bz2err != BZ_OK)
- errx(1, "BZ2_bzWrite, bz2err = %d", bz2err);
- BZ2_bzWriteClose(&bz2err, pfbz2, 0, NULL, NULL);
- if (bz2err != BZ_OK)
- errx(1, "BZ2_bzWriteClose, bz2err = %d", bz2err);
-
- /* Seek to the beginning, write the header, and close the file */
- if (fseeko(pf, 0, SEEK_SET))
- err(1, "fseeko");
- if (fwrite(header, 32, 1, pf) != 1)
- err(1, "fwrite(%s)", patch_filename);
- if (fclose(pf))
- err(1, "fclose");
-
- /* Free the memory we used */
- free(db);
- free(eb);
-
- return 0;
-}
diff --git a/applypatch/bspatch.cpp b/applypatch/bspatch.cpp
index ebb55f1d1..a4945da28 100644
--- a/applypatch/bspatch.cpp
+++ b/applypatch/bspatch.cpp
@@ -30,7 +30,7 @@
#include <bzlib.h>
#include "openssl/sha.h"
-#include "applypatch.h"
+#include "applypatch/applypatch.h"
void ShowBSDiffLicense() {
puts("The bsdiff library used herein is:\n"
@@ -182,7 +182,6 @@ int ApplyBSDiffPatchMem(const unsigned char* old_data, ssize_t old_size,
off_t oldpos = 0, newpos = 0;
off_t ctrl[3];
- off_t len_read;
int i;
unsigned char buf[24];
while (newpos < new_size) {
diff --git a/applypatch/freecache.cpp b/applypatch/freecache.cpp
index c84f42797..331cae265 100644
--- a/applypatch/freecache.cpp
+++ b/applypatch/freecache.cpp
@@ -32,7 +32,7 @@
#include <android-base/parseint.h>
#include <android-base/stringprintf.h>
-#include "applypatch.h"
+#include "applypatch/applypatch.h"
static int EliminateOpenFiles(std::set<std::string>* files) {
std::unique_ptr<DIR, decltype(&closedir)> d(opendir("/proc"), closedir);
diff --git a/applypatch/imgdiff.cpp b/applypatch/imgdiff.cpp
index f22502e38..7c5bb866d 100644
--- a/applypatch/imgdiff.cpp
+++ b/applypatch/imgdiff.cpp
@@ -130,6 +130,8 @@
#include <unistd.h>
#include <sys/types.h>
+#include <bsdiff.h>
+
#include "zlib.h"
#include "imgdiff.h"
#include "utils.h"
@@ -144,8 +146,6 @@ typedef struct {
size_t source_start;
size_t source_len;
- off_t* I; // used by bsdiff
-
// --- for CHUNK_DEFLATE chunks only: ---
// original (compressed) deflate data
@@ -179,10 +179,6 @@ static int fileentry_compare(const void* a, const void* b) {
}
}
-// from bsdiff.c
-int bsdiff(u_char* old, off_t oldsize, off_t** IP, u_char* newdata, off_t newsize,
- const char* patch_filename);
-
unsigned char* ReadZip(const char* filename,
int* num_chunks, ImageChunk** chunks,
int include_pseudo_chunk) {
@@ -296,7 +292,6 @@ unsigned char* ReadZip(const char* filename,
curr->len = st.st_size;
curr->data = img;
curr->filename = NULL;
- curr->I = NULL;
++curr;
++*num_chunks;
}
@@ -311,7 +306,6 @@ unsigned char* ReadZip(const char* filename,
curr->deflate_len = temp_entries[nextentry].deflate_len;
curr->deflate_data = img + pos;
curr->filename = temp_entries[nextentry].filename;
- curr->I = NULL;
curr->len = temp_entries[nextentry].uncomp_len;
curr->data = reinterpret_cast<unsigned char*>(malloc(curr->len));
@@ -356,7 +350,6 @@ unsigned char* ReadZip(const char* filename,
}
curr->data = img + pos;
curr->filename = NULL;
- curr->I = NULL;
pos += curr->len;
++*num_chunks;
@@ -407,7 +400,6 @@ unsigned char* ReadImage(const char* filename,
while (pos < sz) {
unsigned char* p = img+pos;
- bool processed_deflate = false;
if (sz - pos >= 4 &&
p[0] == 0x1f && p[1] == 0x8b &&
p[2] == 0x08 && // deflate compression
@@ -425,7 +417,6 @@ unsigned char* ReadImage(const char* filename,
curr->type = CHUNK_NORMAL;
curr->len = GZIP_HEADER_LEN;
curr->data = p;
- curr->I = NULL;
pos += curr->len;
p += curr->len;
@@ -433,7 +424,6 @@ unsigned char* ReadImage(const char* filename,
curr->type = CHUNK_DEFLATE;
curr->filename = NULL;
- curr->I = NULL;
// We must decompress this chunk in order to discover where it
// ends, and so we can put the uncompressed data and its length
@@ -461,28 +451,27 @@ unsigned char* ReadImage(const char* filename,
strm.next_out = curr->data + curr->len;
ret = inflate(&strm, Z_NO_FLUSH);
if (ret < 0) {
- if (!processed_deflate) {
- // This is the first chunk, assume that it's just a spurious
- // gzip header instead of a real one.
- break;
- }
- printf("Error: inflate failed [%s] at file offset [%zu]\n"
- "imgdiff only supports gzip kernel compression,"
- " did you try CONFIG_KERNEL_LZO?\n",
+ printf("Warning: inflate failed [%s] at offset [%zu],"
+ " treating as a normal chunk\n",
strm.msg, chunk_offset);
- free(img);
- return NULL;
+ break;
}
curr->len = allocated - strm.avail_out;
if (strm.avail_out == 0) {
allocated *= 2;
curr->data = reinterpret_cast<unsigned char*>(realloc(curr->data, allocated));
}
- processed_deflate = true;
} while (ret != Z_STREAM_END);
curr->deflate_len = sz - strm.avail_in - pos;
inflateEnd(&strm);
+
+ if (ret < 0) {
+ free(curr->data);
+ *num_chunks -= 2;
+ continue;
+ }
+
pos += curr->deflate_len;
p += curr->deflate_len;
++curr;
@@ -493,7 +482,6 @@ unsigned char* ReadImage(const char* filename,
curr->start = pos;
curr->len = GZIP_FOOTER_LEN;
curr->data = img+pos;
- curr->I = NULL;
pos += curr->len;
p += curr->len;
@@ -517,7 +505,6 @@ unsigned char* ReadImage(const char* filename,
*chunks = reinterpret_cast<ImageChunk*>(realloc(*chunks, *num_chunks * sizeof(ImageChunk)));
ImageChunk* curr = *chunks + (*num_chunks-1);
curr->start = pos;
- curr->I = NULL;
// 'pos' is not the offset of the start of a gzip chunk, so scan
// forward until we find a gzip header.
@@ -598,7 +585,6 @@ int ReconstructDeflateChunk(ImageChunk* chunk) {
return -1;
}
- size_t p = 0;
unsigned char* out = reinterpret_cast<unsigned char*>(malloc(BUFFER_SIZE));
// We only check two combinations of encoder parameters: level 6
@@ -645,7 +631,7 @@ unsigned char* MakePatch(ImageChunk* src, ImageChunk* tgt, size_t* size) {
close(fd); // temporary file is created and we don't need its file
// descriptor
- int r = bsdiff(src->data, src->len, &(src->I), tgt->data, tgt->len, ptemp);
+ int r = bsdiff::bsdiff(src->data, src->len, tgt->data, tgt->len, ptemp);
if (r != 0) {
printf("bsdiff() failed: %d\n", r);
return NULL;
@@ -844,7 +830,6 @@ int main(int argc, char** argv) {
}
if (argc != 4) {
- usage:
printf("usage: %s [-z] [-b <bonus-file>] <src-img> <tgt-img> <patch-file>\n",
argv[0]);
return 2;
diff --git a/applypatch/imgpatch.cpp b/applypatch/imgpatch.cpp
index d175d6385..0c06d6b1e 100644
--- a/applypatch/imgpatch.cpp
+++ b/applypatch/imgpatch.cpp
@@ -28,7 +28,7 @@
#include "zlib.h"
#include "openssl/sha.h"
-#include "applypatch.h"
+#include "applypatch/applypatch.h"
#include "imgdiff.h"
#include "utils.h"
@@ -130,6 +130,7 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
size_t src_len = Read8(deflate_header+8);
size_t patch_offset = Read8(deflate_header+16);
size_t expanded_len = Read8(deflate_header+24);
+ size_t target_len = Read8(deflate_header+32);
int level = Read4(deflate_header+40);
int method = Read4(deflate_header+44);
int windowBits = Read4(deflate_header+48);
@@ -200,6 +201,11 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
&uncompressed_target_data) != 0) {
return -1;
}
+ if (uncompressed_target_data.size() != target_len) {
+ printf("expected target len to be %zu, but it's %zu\n",
+ target_len, uncompressed_target_data.size());
+ return -1;
+ }
// Now compress the target data and append it to the output.
@@ -231,8 +237,8 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
ssize_t have = temp_data.size() - strm.avail_out;
if (sink(temp_data.data(), have, token) != have) {
- printf("failed to write %ld compressed bytes to output\n",
- (long)have);
+ printf("failed to write %zd compressed bytes to output\n",
+ have);
return -1;
}
if (ctx) SHA1_Update(ctx, temp_data.data(), have);
diff --git a/applypatch/applypatch.h b/applypatch/include/applypatch/applypatch.h
index f392c5534..9ee39d293 100644
--- a/applypatch/applypatch.h
+++ b/applypatch/include/applypatch/applypatch.h
@@ -17,6 +17,7 @@
#ifndef _APPLYPATCH_H
#define _APPLYPATCH_H
+#include <stdint.h>
#include <sys/stat.h>
#include <vector>
diff --git a/applypatch/libimgpatch.pc b/applypatch/libimgpatch.pc
new file mode 100644
index 000000000..e5002934f
--- /dev/null
+++ b/applypatch/libimgpatch.pc
@@ -0,0 +1,6 @@
+# This file is for libimgpatch in Chrome OS.
+
+Name: libimgpatch
+Description: Apply imgdiff patch
+Version: 0.0.1
+Libs: -limgpatch -lbz2 -lz
diff --git a/applypatch/main.cpp b/applypatch/main.cpp
index 9013760c4..1968ae48f 100644
--- a/applypatch/main.cpp
+++ b/applypatch/main.cpp
@@ -22,7 +22,7 @@
#include <memory>
#include <vector>
-#include "applypatch.h"
+#include "applypatch/applypatch.h"
#include "edify/expr.h"
#include "openssl/sha.h"
@@ -160,9 +160,9 @@ static int PatchMode(int argc, char** argv) {
// - otherwise, or if any error is encountered, exits with non-zero
// status.
//
-// <src-file> (or <file> in check mode) may refer to an MTD partition
+// <src-file> (or <file> in check mode) may refer to an EMMC partition
// to read the source data. See the comments for the
-// LoadMTDContents() function above for the format of such a filename.
+// LoadPartitionContents() function for the format of such a filename.
int main(int argc, char** argv) {
if (argc < 2) {
@@ -175,8 +175,8 @@ int main(int argc, char** argv) {
" or %s -l\n"
"\n"
"Filenames may be of the form\n"
- " MTD:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>:...\n"
- "to specify reading from or writing to an MTD partition.\n\n",
+ " EMMC:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>:...\n"
+ "to specify reading from or writing to an EMMC partition.\n\n",
argv[0], argv[0], argv[0], argv[0]);
return 2;
}
diff --git a/applypatch/utils.cpp b/applypatch/utils.cpp
index 4a80be75f..fef250f01 100644
--- a/applypatch/utils.cpp
+++ b/applypatch/utils.cpp
@@ -27,7 +27,7 @@ void Write4(int value, FILE* f) {
}
/** Write an 8-byte value to f in little-endian order. */
-void Write8(long long value, FILE* f) {
+void Write8(int64_t value, FILE* f) {
fputc(value & 0xff, f);
fputc((value >> 8) & 0xff, f);
fputc((value >> 16) & 0xff, f);
@@ -52,14 +52,14 @@ int Read4(void* pv) {
(unsigned int)p[0]);
}
-long long Read8(void* pv) {
+int64_t Read8(void* pv) {
unsigned char* p = reinterpret_cast<unsigned char*>(pv);
- return (long long)(((unsigned long long)p[7] << 56) |
- ((unsigned long long)p[6] << 48) |
- ((unsigned long long)p[5] << 40) |
- ((unsigned long long)p[4] << 32) |
- ((unsigned long long)p[3] << 24) |
- ((unsigned long long)p[2] << 16) |
- ((unsigned long long)p[1] << 8) |
- (unsigned long long)p[0]);
+ return (int64_t)(((uint64_t)p[7] << 56) |
+ ((uint64_t)p[6] << 48) |
+ ((uint64_t)p[5] << 40) |
+ ((uint64_t)p[4] << 32) |
+ ((uint64_t)p[3] << 24) |
+ ((uint64_t)p[2] << 16) |
+ ((uint64_t)p[1] << 8) |
+ (uint64_t)p[0]);
}
diff --git a/applypatch/utils.h b/applypatch/utils.h
index bc97f1720..1c34edd97 100644
--- a/applypatch/utils.h
+++ b/applypatch/utils.h
@@ -17,14 +17,15 @@
#ifndef _BUILD_TOOLS_APPLYPATCH_UTILS_H
#define _BUILD_TOOLS_APPLYPATCH_UTILS_H
+#include <inttypes.h>
#include <stdio.h>
// Read and write little-endian values of various sizes.
void Write4(int value, FILE* f);
-void Write8(long long value, FILE* f);
+void Write8(int64_t value, FILE* f);
int Read2(void* p);
int Read4(void* p);
-long long Read8(void* p);
+int64_t Read8(void* p);
#endif // _BUILD_TOOLS_APPLYPATCH_UTILS_H
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 02:38:50 +0100