1// Copyright 2014 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include <sys/stat.h> 6#include <sys/types.h> 7#include <unistd.h> 8#include <cstring> 9 10#include "base/logging.h" 11#include "native_client/src/trusted/service_runtime/include/sys/stat.h" 12#include "native_client/src/trusted/service_runtime/include/sys/time.h" 13 14namespace nacl { 15namespace nonsfi { 16 17void NaClAbiTimeSpecToTimeSpec(const struct nacl_abi_timespec& nacl_timespec, 18 struct timespec* host_timespec) { 19 host_timespec->tv_sec = nacl_timespec.tv_sec; 20 host_timespec->tv_nsec = nacl_timespec.tv_nsec; 21} 22 23void TimeSpecToNaClAbiTimeSpec(const struct timespec& host_timespec, 24 struct nacl_abi_timespec* nacl_timespec) { 25 nacl_timespec->tv_sec = host_timespec.tv_sec; 26 nacl_timespec->tv_nsec = host_timespec.tv_nsec; 27} 28 29void StatToNaClAbiStat( 30 const struct stat& host_stat, struct nacl_abi_stat* nacl_stat) { 31 // Some fields in host_stat, such as st_dev, group/other bits of mode and 32 // (a,m,c)timensec, are ignored to sync with the NaCl's original 33 // implementation. Please see also NaClAbiStatHostDescStatXlateCtor in 34 // native_client/src/trusted/desc/posix/nacl_desc.c. 35 std::memset(nacl_stat, 0, sizeof(*nacl_stat)); 36 nacl_stat->nacl_abi_st_dev = 0; 37 nacl_stat->nacl_abi_st_ino = host_stat.st_ino; 38 nacl_abi_mode_t mode; 39 switch (host_stat.st_mode & S_IFMT) { 40 case S_IFREG: 41 mode = NACL_ABI_S_IFREG; 42 break; 43 case S_IFDIR: 44 mode = NACL_ABI_S_IFDIR; 45 break; 46 case S_IFCHR: 47 mode = NACL_ABI_S_IFCHR; 48 break; 49 default: 50 LOG(WARNING) << "Unusual NaCl descriptor type: " 51 << (host_stat.st_mode & S_IFMT); 52 mode = NACL_ABI_S_UNSUP; 53 } 54 if (host_stat.st_mode & S_IRUSR) 55 mode |= NACL_ABI_S_IRUSR; 56 if (host_stat.st_mode & S_IWUSR) 57 mode |= NACL_ABI_S_IWUSR; 58 if (host_stat.st_mode & S_IXUSR) 59 mode |= NACL_ABI_S_IXUSR; 60 nacl_stat->nacl_abi_st_mode = mode; 61 nacl_stat->nacl_abi_st_nlink = host_stat.st_nlink; 62 nacl_stat->nacl_abi_st_uid = -1; // Not root 63 nacl_stat->nacl_abi_st_gid = -1; // Not wheel 64 nacl_stat->nacl_abi_st_rdev = 0; 65 nacl_stat->nacl_abi_st_size = host_stat.st_size; 66 nacl_stat->nacl_abi_st_blksize = 0; 67 nacl_stat->nacl_abi_st_blocks = 0; 68 nacl_stat->nacl_abi_st_atime = host_stat.st_atime; 69 nacl_stat->nacl_abi_st_mtime = host_stat.st_mtime; 70 nacl_stat->nacl_abi_st_ctime = host_stat.st_ctime; 71} 72 73} // namespace nonsfi 74} // namespace nacl 75