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| 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 | |
| 14 namespace nacl { | |
| 15 namespace nonsfi { | |
| 16 | |
| 17 void 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 | |
| 23 void 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 | |
| 29 void 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 | |
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