mirror of
https://github.com/CTCaer/CTCaer-TWRP.git
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cdcfee48b9
create a framework for computing digests and reading digests in TWRP add space for backwards compatibility with bb md5sum Change-Id: Ia18e3f430eed5eba22e5052d39b9b8d88ecd4536
113 lines
2.5 KiB
C++
113 lines
2.5 KiB
C++
/*
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Copyright 2012 bigbiff/Dees_Troy TeamWin
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This file is part of TWRP/TeamWin Recovery Project.
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TWRP is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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TWRP is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with TWRP. If not, see <http://www.gnu.org/licenses/>.
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*/
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extern "C" {
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#include "digest/md5.h"
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#include "libcrecovery/common.h"
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}
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#include <vector>
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#include <string>
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#include <sstream>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <string.h>
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#include <libgen.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <fstream>
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#include <iostream>
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#include <string>
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#include <sstream>
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#include <dirent.h>
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#include <sys/mman.h>
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#include "common.h"
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#include "data.hpp"
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#include "variables.h"
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#include "twrp-functions.hpp"
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#include "twrpDigest.hpp"
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using namespace std;
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void twrpDigest::setfn(string fn) {
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md5fn = fn;
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}
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int twrpDigest::computeMD5(void) {
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string line;
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struct MD5Context md5c;
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FILE *file;
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int len;
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unsigned char buf[1024];
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MD5Init(&md5c);
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file = fopen(md5fn.c_str(), "rb");
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if (file == NULL)
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return -1;
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while ((len = fread(buf, 1, sizeof(buf), file)) > 0) {
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MD5Update(&md5c, buf, len);
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}
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MD5Final(md5sum ,&md5c);
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return 0;
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}
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int twrpDigest::write_md5digest(void) {
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int i;
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string md5string, md5file;
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char hex[3];
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md5file = md5fn + ".md5";
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for (i = 0; i < 16; ++i) {
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snprintf(hex, 3 ,"%02x", md5sum[i]);
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md5string += hex;
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}
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md5string += " ";
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md5string += basename((char*) md5fn.c_str());
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md5string += + "\n";
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TWFunc::write_file(md5file, md5string);
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return 0;
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}
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int twrpDigest::read_md5digest(void) {
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string md5file = md5fn + ".md5";
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if (TWFunc::read_file(md5file, lines) != 0)
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return -1;
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return 0;
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}
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int twrpDigest::verify_md5digest(void) {
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string buf;
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char hex[3];
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int i;
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string md5string;
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if (read_md5digest() != 0)
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return -1;
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stringstream ss(lines.at(0));
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vector<string> tokens;
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while (ss >> buf)
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tokens.push_back(buf);
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computeMD5();
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for (i = 0; i < 16; ++i) {
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snprintf(hex, 3, "%02x", md5sum[i]);
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md5string += hex;
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}
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if (tokens.at(0) != md5string)
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return -2;
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return 0;
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}
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