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2337d39f72
Add fstat(), fstatat() and lstat(). All of them use the existing implementation based on statx(). Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250428-nolibc-misc-v2-3-3c043eeab06c@linutronix.de Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
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/*
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* stat definition for NOLIBC
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* Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
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*/
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/* make sure to include all global symbols */
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#include "../nolibc.h"
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#ifndef _NOLIBC_SYS_STAT_H
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#define _NOLIBC_SYS_STAT_H
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#include "../arch.h"
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#include "../types.h"
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#include "../sys.h"
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/*
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* int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf);
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* int stat(const char *path, struct stat *buf);
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* int fstatat(int fd, const char *path, struct stat *buf, int flag);
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* int fstat(int fildes, struct stat *buf);
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* int lstat(const char *path, struct stat *buf);
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*/
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static __attribute__((unused))
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int sys_statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf)
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{
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#ifdef __NR_statx
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return my_syscall5(__NR_statx, fd, path, flags, mask, buf);
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#else
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return __nolibc_enosys(__func__, fd, path, flags, mask, buf);
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#endif
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}
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static __attribute__((unused))
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int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf)
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{
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return __sysret(sys_statx(fd, path, flags, mask, buf));
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}
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static __attribute__((unused))
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int fstatat(int fd, const char *path, struct stat *buf, int flag)
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{
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struct statx statx;
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long ret;
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ret = __sysret(sys_statx(fd, path, flag | AT_NO_AUTOMOUNT, STATX_BASIC_STATS, &statx));
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if (ret == -1)
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return ret;
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buf->st_dev = ((statx.stx_dev_minor & 0xff)
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| (statx.stx_dev_major << 8)
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| ((statx.stx_dev_minor & ~0xff) << 12));
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buf->st_ino = statx.stx_ino;
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buf->st_mode = statx.stx_mode;
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buf->st_nlink = statx.stx_nlink;
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buf->st_uid = statx.stx_uid;
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buf->st_gid = statx.stx_gid;
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buf->st_rdev = ((statx.stx_rdev_minor & 0xff)
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| (statx.stx_rdev_major << 8)
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| ((statx.stx_rdev_minor & ~0xff) << 12));
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buf->st_size = statx.stx_size;
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buf->st_blksize = statx.stx_blksize;
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buf->st_blocks = statx.stx_blocks;
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buf->st_atim.tv_sec = statx.stx_atime.tv_sec;
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buf->st_atim.tv_nsec = statx.stx_atime.tv_nsec;
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buf->st_mtim.tv_sec = statx.stx_mtime.tv_sec;
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buf->st_mtim.tv_nsec = statx.stx_mtime.tv_nsec;
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buf->st_ctim.tv_sec = statx.stx_ctime.tv_sec;
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buf->st_ctim.tv_nsec = statx.stx_ctime.tv_nsec;
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return 0;
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}
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static __attribute__((unused))
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int stat(const char *path, struct stat *buf)
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{
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return fstatat(AT_FDCWD, path, buf, 0);
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}
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static __attribute__((unused))
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int fstat(int fildes, struct stat *buf)
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{
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return fstatat(fildes, "", buf, AT_EMPTY_PATH);
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}
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static __attribute__((unused))
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int lstat(const char *path, struct stat *buf)
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{
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return fstatat(AT_FDCWD, path, buf, AT_SYMLINK_NOFOLLOW);
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}
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#endif /* _NOLIBC_SYS_STAT_H */
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