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-rw-r--r--applypatch/Android.mk73
-rw-r--r--applypatch/Makefile33
-rw-r--r--applypatch/applypatch.cpp8
-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.cpp2
-rw-r--r--applypatch/utils.cpp20
-rw-r--r--applypatch/utils.h5
13 files changed, 132 insertions, 484 deletions
diff --git a/applypatch/Android.mk b/applypatch/Android.mk
index 887a570db..a15ac0280 100644
--- a/applypatch/Android.mk
+++ b/applypatch/Android.mk
@@ -14,61 +14,88 @@
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 \
+ libmtdutils \
+ libbase \
+ libcrypto_static \
+ 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
-
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
-
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 \
+ libmtdutils \
+ libcrypto_static \
+ 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..270fde5c4 100644
--- a/applypatch/applypatch.cpp
+++ b/applypatch/applypatch.cpp
@@ -31,7 +31,7 @@
#include <android-base/strings.h>
#include "openssl/sha.h"
-#include "applypatch.h"
+#include "applypatch/applypatch.h"
#include "mtdutils/mtdutils.h"
#include "edify/expr.h"
#include "ota_io.h"
@@ -77,7 +77,7 @@ 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;
}
@@ -596,7 +596,7 @@ 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;
@@ -897,7 +897,7 @@ 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 8824038ea..f5aed763d 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);
@@ -195,6 +196,11 @@ 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.
@@ -223,8 +229,8 @@ 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..0ff8cbf9a 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"
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 2024-11-01 16:03:38 +0100