nsjail/util.h

/*

   nsjail - useful procedures
   -----------------------------------------

   Copyright 2016 Google Inc. All Rights Reserved.

   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.

*/

#ifndef NS_UTIL_H
#define NS_UTIL_H

#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>

#include "nsjail.h"

namespace util {

void* memAlloc(size_t sz);
void* clearAlloc(size_t sz);
char* strDup(const char* str);
uint8_t* memDup(const uint8_t* src, size_t len);
ssize_t readFromFd(int fd, void* buf, size_t len);
ssize_t readFromFile(const char* fname, void* buf, size_t len);
ssize_t writeToFd(int fd, const void* buf, size_t len);
bool writeBufToFile(const char* filename, const void* buf, size_t len, int open_flags);
bool createDirRecursively(const char* dir);
int sSnPrintf(char* str, size_t size, const char* format, ...);
bool isANumber(const char* s);
uint64_t rnd64(void);
const char* sigName(int signo);
const char* timeToStr(time_t t);

}  // namespace util

#endif /* NS_UTIL_H */