87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define TRACE_TAG TRACE_ADB
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#include "adb_utils.h"
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <algorithm>
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#include <base/stringprintf.h>
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#include "adb_trace.h"
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#include "sysdeps.h"
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bool getcwd(std::string* s) {
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char* cwd = getcwd(nullptr, 0);
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if (cwd != nullptr) *s = cwd;
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free(cwd);
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return (cwd != nullptr);
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}
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bool directory_exists(const std::string& path) {
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struct stat sb;
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return lstat(path.c_str(), &sb) != -1 && S_ISDIR(sb.st_mode);
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}
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std::string escape_arg(const std::string& s) {
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std::string result = s;
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// Escape any ' in the string (before we single-quote the whole thing).
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// The correct way to do this for the shell is to replace ' with '\'' --- that is,
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// close the existing single-quoted string, escape a single single-quote, and start
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// a new single-quoted string. Like the C preprocessor, the shell will concatenate
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// these pieces into one string.
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for (size_t i = 0; i < s.size(); ++i) {
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if (s[i] == '\'') {
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result.insert(i, "'\\'");
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i += 2;
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}
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}
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// Prefix and suffix the whole string with '.
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result.insert(result.begin(), '\'');
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result.push_back('\'');
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return result;
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}
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void dump_hex(const void* data, size_t byte_count) {
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byte_count = std::min(byte_count, size_t(16));
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const uint8_t* p = reinterpret_cast<const uint8_t*>(data);
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std::string line;
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for (size_t i = 0; i < byte_count; ++i) {
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android::base::StringAppendF(&line, "%02x", p[i]);
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}
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line.push_back(' ');
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for (size_t i = 0; i < byte_count; ++i) {
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int c = p[i];
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if (c < 32 || c > 127) {
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c = '.';
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}
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line.push_back(c);
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}
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DR("%s\n", line.c_str());
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}
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