1 /* Definition for struct stat. 2 Copyright (C) 2020-2021 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library. If not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #if !defined _SYS_STAT_H && !defined _FCNTL_H 20 # error "Never include <bits/struct_stat.h> directly; use <sys/stat.h> instead." 21 #endif 22 23 #ifndef _BITS_STRUCT_STAT_H 24 #define _BITS_STRUCT_STAT_H 1 25 26 #include <bits/endian.h> 27 #include <bits/wordsize.h> 28 29 #if defined __USE_FILE_OFFSET64 30 # define __field64(type, type64, name) type64 name 31 #elif __WORDSIZE == 64 || defined __INO_T_MATCHES_INO64_T 32 # if defined __INO_T_MATCHES_INO64_T && !defined __OFF_T_MATCHES_OFF64_T 33 # error "ino_t and off_t must both be the same type" 34 # endif 35 # define __field64(type, type64, name) type name 36 #elif __BYTE_ORDER == __LITTLE_ENDIAN 37 # define __field64(type, type64, name) \ 38 type name __attribute__((__aligned__ (__alignof__ (type64)))); int __##name##_pad 39 #else 40 # define __field64(type, type64, name) \ 41 int __##name##_pad __attribute__((__aligned__ (__alignof__ (type64)))); type name 42 #endif 43 44 struct stat 45 { 46 __dev_t st_dev; /* Device. */ 47 __field64(__ino_t, __ino64_t, st_ino); /* File serial number. */ 48 __mode_t st_mode; /* File mode. */ 49 __nlink_t st_nlink; /* Link count. */ 50 __uid_t st_uid; /* User ID of the file's owner. */ 51 __gid_t st_gid; /* Group ID of the file's group.*/ 52 __dev_t st_rdev; /* Device number, if device. */ 53 __dev_t __pad1; 54 __field64(__off_t, __off64_t, st_size); /* Size of file, in bytes. */ 55 __blksize_t st_blksize; /* Optimal block size for I/O. */ 56 int __pad2; 57 __field64(__blkcnt_t, __blkcnt64_t, st_blocks); /* 512-byte blocks */ 58 #ifdef __USE_XOPEN2K8 59 /* Nanosecond resolution timestamps are stored in a format 60 equivalent to 'struct timespec'. This is the type used 61 whenever possible but the Unix namespace rules do not allow the 62 identifier 'timespec' to appear in the <sys/stat.h> header. 63 Therefore we have to handle the use of this header in strictly 64 standard-compliant sources special. */ 65 struct timespec st_atim; /* Time of last access. */ 66 struct timespec st_mtim; /* Time of last modification. */ 67 struct timespec st_ctim; /* Time of last status change. */ 68 # define st_atime st_atim.tv_sec /* Backward compatibility. */ 69 # define st_mtime st_mtim.tv_sec 70 # define st_ctime st_ctim.tv_sec 71 #else 72 __time_t st_atime; /* Time of last access. */ 73 unsigned long int st_atimensec; /* Nscecs of last access. */ 74 __time_t st_mtime; /* Time of last modification. */ 75 unsigned long int st_mtimensec; /* Nsecs of last modification. */ 76 __time_t st_ctime; /* Time of last status change. */ 77 unsigned long int st_ctimensec; /* Nsecs of last status change. */ 78 #endif 79 int __glibc_reserved[2]; 80 }; 81 82 #undef __field64 83 84 #ifdef __USE_LARGEFILE64 85 struct stat64 86 { 87 __dev_t st_dev; /* Device. */ 88 __ino64_t st_ino; /* File serial number. */ 89 __mode_t st_mode; /* File mode. */ 90 __nlink_t st_nlink; /* Link count. */ 91 __uid_t st_uid; /* User ID of the file's owner. */ 92 __gid_t st_gid; /* Group ID of the file's group.*/ 93 __dev_t st_rdev; /* Device number, if device. */ 94 __dev_t __pad1; 95 __off64_t st_size; /* Size of file, in bytes. */ 96 __blksize_t st_blksize; /* Optimal block size for I/O. */ 97 int __pad2; 98 __blkcnt64_t st_blocks; /* Nr. 512-byte blocks allocated. */ 99 #ifdef __USE_XOPEN2K8 100 /* Nanosecond resolution timestamps are stored in a format 101 equivalent to 'struct timespec'. This is the type used 102 whenever possible but the Unix namespace rules do not allow the 103 identifier 'timespec' to appear in the <sys/stat.h> header. 104 Therefore we have to handle the use of this header in strictly 105 standard-compliant sources special. */ 106 struct timespec st_atim; /* Time of last access. */ 107 struct timespec st_mtim; /* Time of last modification. */ 108 struct timespec st_ctim; /* Time of last status change. */ 109 #else 110 __time_t st_atime; /* Time of last access. */ 111 unsigned long int st_atimensec; /* Nscecs of last access. */ 112 __time_t st_mtime; /* Time of last modification. */ 113 unsigned long int st_mtimensec; /* Nsecs of last modification. */ 114 __time_t st_ctime; /* Time of last status change. */ 115 unsigned long int st_ctimensec; /* Nsecs of last status change. */ 116 #endif 117 int __glibc_reserved[2]; 118 }; 119 #endif 120 121 /* Tell code we have these members. */ 122 #define _STATBUF_ST_BLKSIZE 123 #define _STATBUF_ST_RDEV 124 /* Nanosecond resolution time values are supported. */ 125 #define _STATBUF_ST_NSEC 126 127 #endif /* _BITS_STRUCT_STAT_H */