1 /* SPDX-License-Identifier: LGPL-2.1 OR MIT */ 2 /* 3 * stat definition for NOLIBC 4 * Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu> 5 */ 6 7 /* make sure to include all global symbols */ 8 #include "../nolibc.h" 9 10 #ifndef _NOLIBC_SYS_STAT_H 11 #define _NOLIBC_SYS_STAT_H 12 13 #include "../arch.h" 14 #include "../types.h" 15 #include "../sys.h" 16 17 /* 18 * int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf); 19 * int stat(const char *path, struct stat *buf); 20 * int fstatat(int fd, const char *path, struct stat *buf, int flag); 21 * int fstat(int fildes, struct stat *buf); 22 * int lstat(const char *path, struct stat *buf); 23 */ 24 25 static __attribute__((unused)) 26 int sys_statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf) 27 { 28 #ifdef __NR_statx 29 return my_syscall5(__NR_statx, fd, path, flags, mask, buf); 30 #else 31 return __nolibc_enosys(__func__, fd, path, flags, mask, buf); 32 #endif 33 } 34 35 static __attribute__((unused)) 36 int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf) 37 { 38 return __sysret(sys_statx(fd, path, flags, mask, buf)); 39 } 40 41 42 static __attribute__((unused)) 43 int fstatat(int fd, const char *path, struct stat *buf, int flag) 44 { 45 struct statx statx; 46 long ret; 47 48 ret = __sysret(sys_statx(fd, path, flag | AT_NO_AUTOMOUNT, STATX_BASIC_STATS, &statx)); 49 if (ret == -1) 50 return ret; 51 52 buf->st_dev = ((statx.stx_dev_minor & 0xff) 53 | (statx.stx_dev_major << 8) 54 | ((statx.stx_dev_minor & ~0xff) << 12)); 55 buf->st_ino = statx.stx_ino; 56 buf->st_mode = statx.stx_mode; 57 buf->st_nlink = statx.stx_nlink; 58 buf->st_uid = statx.stx_uid; 59 buf->st_gid = statx.stx_gid; 60 buf->st_rdev = ((statx.stx_rdev_minor & 0xff) 61 | (statx.stx_rdev_major << 8) 62 | ((statx.stx_rdev_minor & ~0xff) << 12)); 63 buf->st_size = statx.stx_size; 64 buf->st_blksize = statx.stx_blksize; 65 buf->st_blocks = statx.stx_blocks; 66 buf->st_atim.tv_sec = statx.stx_atime.tv_sec; 67 buf->st_atim.tv_nsec = statx.stx_atime.tv_nsec; 68 buf->st_mtim.tv_sec = statx.stx_mtime.tv_sec; 69 buf->st_mtim.tv_nsec = statx.stx_mtime.tv_nsec; 70 buf->st_ctim.tv_sec = statx.stx_ctime.tv_sec; 71 buf->st_ctim.tv_nsec = statx.stx_ctime.tv_nsec; 72 73 return 0; 74 } 75 76 static __attribute__((unused)) 77 int stat(const char *path, struct stat *buf) 78 { 79 return fstatat(AT_FDCWD, path, buf, 0); 80 } 81 82 static __attribute__((unused)) 83 int fstat(int fildes, struct stat *buf) 84 { 85 return fstatat(fildes, "", buf, AT_EMPTY_PATH); 86 } 87 88 static __attribute__((unused)) 89 int lstat(const char *path, struct stat *buf) 90 { 91 return fstatat(AT_FDCWD, path, buf, AT_SYMLINK_NOFOLLOW); 92 } 93 94 #endif /* _NOLIBC_SYS_STAT_H */ 95