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/*
* Copyright (C) 2015 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.
*/
#define TRACE_TAG TRACE_ADB
#include "adb_utils.h"
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <algorithm>
#include <base/stringprintf.h>
#include "adb_trace.h"
#include "sysdeps.h"
bool getcwd(std::string* s) {
char* cwd = getcwd(nullptr, 0);
if (cwd != nullptr) *s = cwd;
free(cwd);
return (cwd != nullptr);
}
bool directory_exists(const std::string& path) {
struct stat sb;
return lstat(path.c_str(), &sb) != -1 && S_ISDIR(sb.st_mode);
}
std::string escape_arg(const std::string& s) {
std::string result = s;
// Escape any ' in the string (before we single-quote the whole thing).
// The correct way to do this for the shell is to replace ' with '\'' --- that is,
// close the existing single-quoted string, escape a single single-quote, and start
// a new single-quoted string. Like the C preprocessor, the shell will concatenate
// these pieces into one string.
for (size_t i = 0; i < s.size(); ++i) {
if (s[i] == '\'') {
result.insert(i, "'\\'");
i += 2;
}
}
// Prefix and suffix the whole string with '.
result.insert(result.begin(), '\'');
result.push_back('\'');
return result;
}
void dump_hex(const void* data, size_t byte_count) {
byte_count = std::min(byte_count, size_t(16));
const uint8_t* p = reinterpret_cast<const uint8_t*>(data);
std::string line;
for (size_t i = 0; i < byte_count; ++i) {
android::base::StringAppendF(&line, "%02x", p[i]);
}
line.push_back(' ');
for (size_t i = 0; i < byte_count; ++i) {
int c = p[i];
if (c < 32 || c > 127) {
c = '.';
}
line.push_back(c);
}
DR("%s\n", line.c_str());
}
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