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-rw-r--r--twrpTar.cpp155
1 files changed, 88 insertions, 67 deletions
diff --git a/twrpTar.cpp b/twrpTar.cpp
index 78409c7e1..82b24766b 100644
--- a/twrpTar.cpp
+++ b/twrpTar.cpp
@@ -1,23 +1,25 @@
/*
- Copyright 2012 bigbiff/Dees_Troy TeamWin
- This file is part of TWRP/TeamWin Recovery Project.
+ Copyright 2012 bigbiff/Dees_Troy TeamWin
+ This file is part of TWRP/TeamWin Recovery Project.
- TWRP is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
+ TWRP is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- TWRP is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+ TWRP is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with TWRP. If not, see <http://www.gnu.org/licenses/>.
+ You should have received a copy of the GNU General Public License
+ along with TWRP. If not, see <http://www.gnu.org/licenses/>.
*/
extern "C" {
#include "libtar/libtar.h"
+ #include "twrpTar.h"
+ #include "tarWrite.h"
}
#include <sys/types.h>
#include <sys/stat.h>
@@ -25,7 +27,6 @@ extern "C" {
#include <errno.h>
#include <fcntl.h>
#include <fstream>
-#include <fstream>
#include <iostream>
#include <string>
#include <sstream>
@@ -139,6 +140,7 @@ int twrpTar::Generate_Multiple_Archives(string Path) {
if (Archive_Current_Size != 0 && Archive_Current_Size + st.st_size > MAX_ARCHIVE_SIZE) {
LOGI("Closing tar '%s', ", tarfn.c_str());
closeTar(false);
+ reinit_libtar_buffer();
if (TWFunc::Get_File_Size(tarfn) == 0) {
LOGE("Backup file size for '%s' is 0 bytes.\n", tarfn.c_str());
return -1;
@@ -180,20 +182,23 @@ int twrpTar::Split_Archive()
Archive_Current_Size = 0;
sprintf(actual_filename, temp.c_str(), Archive_File_Count);
tarfn = actual_filename;
+ init_libtar_buffer(0);
createTar();
DataManager::GetValue(TW_HAS_DATA_MEDIA, has_data_media);
ui_print("Creating archive 1...\n");
if (Generate_Multiple_Archives(tardir) < 0) {
- LOGE("Error generating file list\n");
+ LOGE("Error generating multiple archives\n");
+ free_libtar_buffer();
return -1;
}
closeTar(false);
+ free_libtar_buffer();
LOGI("Done, created %i archives.\n", (Archive_File_Count++));
return (Archive_File_Count);
}
int twrpTar::extractTar() {
- char* charRootDir = (char*) tardir.c_str();
+ char* charRootDir = (char*) tardir.c_str();
bool gzip = false;
if (openTar(gzip) == -1)
return -1;
@@ -209,19 +214,19 @@ int twrpTar::extractTar() {
}
int twrpTar::extract() {
- int len = 3;
- char header[len];
- string::size_type i = 0;
- int firstbyte = 0;
- int secondbyte = 0;
- int ret;
- ifstream f;
- f.open(tarfn.c_str(), ios::in | ios::binary);
- f.get(header, len);
- firstbyte = header[i] & 0xff;
- secondbyte = header[++i] & 0xff;
- f.close();
- if (firstbyte == 0x1f && secondbyte == 0x8b) {
+ int len = 3;
+ char header[len];
+ string::size_type i = 0;
+ int firstbyte = 0;
+ int secondbyte = 0;
+ int ret;
+ ifstream f;
+ f.open(tarfn.c_str(), ios::in | ios::binary);
+ f.get(header, len);
+ firstbyte = header[i] & 0xff;
+ secondbyte = header[++i] & 0xff;
+ f.close();
+ if (firstbyte == 0x1f && secondbyte == 0x8b) {
//if you return the extractTGZ function directly, stack crashes happen
LOGI("Extracting gzipped tar\n");
ret = extractTGZ();
@@ -234,94 +239,105 @@ int twrpTar::extract() {
}
int twrpTar::tarDirs(bool include_root) {
- DIR* d;
- string mainfolder = tardir + "/", subfolder;
- char buf[1024];
- char* charTarFile = (char*) tarfn.c_str();
- d = opendir(tardir.c_str());
- if (d != NULL) {
- struct dirent* de;
- while ((de = readdir(d)) != NULL) {
- LOGI("adding %s\n", de->d_name);
+ DIR* d;
+ string mainfolder = tardir + "/", subfolder;
+ char buf[1024];
+ char* charTarFile = (char*) tarfn.c_str();
+ d = opendir(tardir.c_str());
+ if (d != NULL) {
+ struct dirent* de;
+ while ((de = readdir(d)) != NULL) {
+ LOGI("adding %s\n", de->d_name);
#ifdef RECOVERY_SDCARD_ON_DATA
- if ((tardir == "/data" || tardir == "/data/") && strcmp(de->d_name, "media") == 0) continue;
+ if ((tardir == "/data" || tardir == "/data/") && strcmp(de->d_name, "media") == 0) continue;
#endif
- if (strcmp(de->d_name, ".") == 0 || strcmp(de->d_name, "..") == 0) continue;
+ if (strcmp(de->d_name, ".") == 0 || strcmp(de->d_name, "..") == 0) continue;
- subfolder = mainfolder;
- subfolder += de->d_name;
- strcpy(buf, subfolder.c_str());
- if (de->d_type == DT_DIR) {
+ subfolder = mainfolder;
+ subfolder += de->d_name;
+ strcpy(buf, subfolder.c_str());
+ if (de->d_type == DT_DIR) {
if (include_root) {
- if (tar_append_tree(t, buf, NULL) != 0) {
- LOGE("Error appending '%s' to tar archive '%s'\n", buf, charTarFile);
- return -1;
- }
+ if (tar_append_tree(t, buf, NULL) != 0) {
+ LOGE("Error appending '%s' to tar archive '%s'\n", buf, charTarFile);
+ return -1;
+ }
} else {
string temp = Strip_Root_Dir(buf);
char* charTarPath = (char*) temp.c_str();
if (tar_append_tree(t, buf, charTarPath) != 0) {
- LOGE("Error appending '%s' to tar archive '%s'\n", buf, charTarFile);
- return -1;
- }
+ LOGE("Error appending '%s' to tar archive '%s'\n", buf, charTarFile);
+ return -1;
+ }
}
- } else if (tardir != "/" && (de->d_type == DT_REG || de->d_type == DT_LNK)) {
+ } else if (tardir != "/" && (de->d_type == DT_REG || de->d_type == DT_LNK)) {
if (addFile(buf, include_root) != 0)
return -1;
}
- fflush(NULL);
- }
- closedir(d);
- }
+ fflush(NULL);
+ }
+ closedir(d);
+ }
return 0;
}
int twrpTar::createTGZ() {
- bool gzip = true;
+ bool gzip = true;
+
+ init_libtar_buffer(0);
if (createTar() == -1)
return -1;
if (tarDirs(false) == -1)
return -1;
if (closeTar(gzip) == -1)
return -1;
- return 0;
+ free_libtar_buffer();
+ return 0;
}
int twrpTar::create() {
- bool gzip = false;
+ bool gzip = false;
+
+ init_libtar_buffer(0);
if (createTar() == -1)
return -1;
if (tarDirs(false) == -1)
return -1;
if (closeTar(gzip) == -1)
return -1;
+ free_libtar_buffer();
return 0;
}
int twrpTar::addFilesToExistingTar(vector <string> files, string fn) {
char* charTarFile = (char*) fn.c_str();
+ static tartype_t type = { open, close, read, write_tar };
- if (tar_open(&t, charTarFile, NULL, O_RDONLY | O_LARGEFILE, 0644, TAR_GNU) == -1)
+ init_libtar_buffer(0);
+ if (tar_open(&t, charTarFile, &type, O_RDONLY | O_LARGEFILE, 0644, TAR_GNU) == -1)
return -1;
removeEOT(charTarFile);
- if (tar_open(&t, charTarFile, NULL, O_WRONLY | O_APPEND | O_LARGEFILE, 0644, TAR_GNU) == -1)
+ if (tar_open(&t, charTarFile, &type, O_WRONLY | O_APPEND | O_LARGEFILE, 0644, TAR_GNU) == -1)
return -1;
for (unsigned int i = 0; i < files.size(); ++i) {
char* file = (char*) files.at(i).c_str();
if (tar_append_file(t, file, file) == -1)
return -1;
}
+ flush_libtar_buffer(t->fd);
if (tar_append_eof(t) == -1)
return -1;
if (tar_close(t) == -1)
return -1;
+ free_libtar_buffer();
return 0;
}
int twrpTar::createTar() {
char* charTarFile = (char*) tarfn.c_str();
- char* charRootDir = (char*) tardir.c_str();
+ char* charRootDir = (char*) tardir.c_str();
int use_compression = 0;
+ static tartype_t type = { open, close, read, write_tar };
DataManager::GetValue(TW_USE_COMPRESSION_VAR, use_compression);
if (use_compression) {
@@ -329,21 +345,21 @@ int twrpTar::createTar() {
p = popen(cmd.c_str(), "w");
fd = fileno(p);
if (!p) return -1;
- if(tar_fdopen(&t, fd, charRootDir, NULL, O_RDONLY | O_LARGEFILE, 0644, TAR_GNU) != 0) {
+ if(tar_fdopen(&t, fd, charRootDir, &type, O_RDONLY | O_LARGEFILE, 0644, TAR_GNU) != 0) {
pclose(p);
return -1;
}
}
else {
- if (tar_open(&t, charTarFile, NULL, O_WRONLY | O_CREAT | O_LARGEFILE, 0644, TAR_GNU) == -1)
+ if (tar_open(&t, charTarFile, &type, O_WRONLY | O_CREAT | O_LARGEFILE, 0644, TAR_GNU) == -1)
return -1;
}
return 0;
}
int twrpTar::openTar(bool gzip) {
- char* charRootDir = (char*) tardir.c_str();
- char* charTarFile = (char*) tarfn.c_str();
+ char* charRootDir = (char*) tardir.c_str();
+ char* charTarFile = (char*) tarfn.c_str();
if (gzip) {
LOGI("Opening as a gzip\n");
@@ -404,6 +420,7 @@ int twrpTar::closeTar(bool gzip) {
int use_compression;
DataManager::GetValue(TW_USE_COMPRESSION_VAR, use_compression);
+ flush_libtar_buffer(t->fd);
if (tar_append_eof(t) != 0) {
LOGE("tar_append_eof(): %s\n", strerror(errno));
tar_close(t);
@@ -453,7 +470,7 @@ int twrpTar::compress(string fn) {
int twrpTar::extractTGZ() {
string splatrootdir(tardir);
bool gzip = true;
- char* splatCharRootDir = (char*) splatrootdir.c_str();
+ char* splatCharRootDir = (char*) splatrootdir.c_str();
if (openTar(gzip) == -1)
return -1;
int ret = tar_extract_all(t, splatCharRootDir);
@@ -461,5 +478,9 @@ int twrpTar::extractTGZ() {
LOGE("Unable to close tar file\n");
return -1;
}
- return 0;
+ return 0;
}
+
+extern "C" ssize_t write_tar(int fd, const void *buffer, size_t size) {
+ return (ssize_t) write_libtar_buffer(fd, buffer, size);
+} \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 23:32:52 +0100