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Message-Id: <20220827231143.3324909-2-dunk@denkimushi.com>
Date: Sun, 28 Aug 2022 00:11:42 +0100
From: Duncan Bellamy <dunk@...kimushi.com>
To: info@...ordhuis.nl
Cc: musl@...ts.openwall.com,
Duncan Bellamy <dunk@...kimushi.com>
Subject: [PATCH 1/2] V2 resubmitting old statx patch with changes
---
include/sys/stat.h | 49 ++++++++++++++++++++++++++++++++++++++++++++++
src/stat/statx.c | 39 ++++++++++++++++++++++++++++++++++++
2 files changed, 88 insertions(+)
create mode 100644 src/stat/statx.c
diff --git a/include/sys/stat.h b/include/sys/stat.h
index 10d446c4..21668a51 100644
--- a/include/sys/stat.h
+++ b/include/sys/stat.h
@@ -70,6 +70,55 @@ extern "C" {
#define UTIME_NOW 0x3fffffff
#define UTIME_OMIT 0x3ffffffe
+#if defined(_GNU_SOURCE)
+#include <stdint.h>
+
+#define STATX_TYPE 1U
+#define STATX_MODE 2U
+#define STATX_NLINK 4U
+#define STATX_UID 8U
+#define STATX_GID 0x10U
+#define STATX_ATIME 0x20U
+#define STATX_MTIME 0x40U
+#define STATX_CTIME 0x80U
+#define STATX_INO 0x100U
+#define STATX_SIZE 0x200U
+#define STATX_BLOCKS 0x400U
+#define STATX_BASIC_STATS 0x7ffU
+#define STATX_BTIME 0x800U
+#define STATX_ALL 0xfffU
+
+struct statx_timestamp {
+ int64_t tv_sec;
+ uint32_t tv_nsec, __pad;
+};
+
+struct statx {
+ uint32_t stx_mask;
+ uint32_t stx_blksize;
+ uint64_t stx_attributes;
+ uint32_t stx_nlink;
+ uint32_t stx_uid;
+ uint32_t stx_gid;
+ uint16_t stx_mode;
+ uint16_t __pad0[1];
+ uint64_t stx_ino;
+ uint64_t stx_size;
+ uint64_t stx_blocks;
+ uint64_t stx_attributes_mask;
+ struct statx_timestamp stx_atime;
+ struct statx_timestamp stx_btime;
+ struct statx_timestamp stx_ctime;
+ struct statx_timestamp stx_mtime;
+ uint32_t stx_rdev_major;
+ uint32_t stx_rdev_minor;
+ uint32_t stx_dev_major;
+ uint32_t stx_dev_minor;
+ uint64_t __pad1[14];
+};
+
+int statx(int, const char *__restrict, int, unsigned, struct statx *__restrict);
+#endif
int stat(const char *__restrict, struct stat *__restrict);
int fstat(int, struct stat *);
int lstat(const char *__restrict, struct stat *__restrict);
diff --git a/src/stat/statx.c b/src/stat/statx.c
new file mode 100644
index 00000000..6788476a
--- /dev/null
+++ b/src/stat/statx.c
@@ -0,0 +1,39 @@
+#define _GNU_SOURCE
+#include <sys/stat.h>
+#include <syscall.h>
+#include <sys/sysmacros.h>
+#include <errno.h>
+
+int statx(int dirfd, const char *restrict path, int flags, unsigned mask, struct statx *restrict stx)
+{
+ int ret = __syscall(SYS_statx, dirfd, path, flags, mask, stx);
+ if (ret != -ENOSYS) return __syscall_ret(ret);
+
+ #if defined(SYS_fstatat)
+ struct stat st;
+ ret = fstatat(dirfd, path, &st, flags);
+ if (ret == -ENOSYS) return -1;
+
+ stx->stx_dev_major = major(st.st_dev);
+ stx->stx_dev_minor = minor(st.st_dev);
+ stx->stx_ino = st.st_ino;
+ stx->stx_mode = st.st_mode;
+ stx->stx_nlink = st.st_nlink;
+ stx->stx_uid = st.st_uid;
+ stx->stx_gid = st.st_gid;
+ stx->stx_size = st.st_size;
+ stx->stx_blksize = st.st_blksize;
+ stx->stx_blocks = st.st_blocks;
+ stx->stx_atime.tv_sec = st.st_atim.tv_sec;
+ stx->stx_atime.tv_nsec = st.st_atim.tv_nsec;
+ stx->stx_mtime.tv_sec = st.st_mtim.tv_sec;
+ stx->stx_mtime.tv_nsec = st.st_mtim.tv_nsec;
+ stx->stx_ctime.tv_sec = st.st_ctim.tv_sec;
+ stx->stx_ctime.tv_nsec = st.st_ctim.tv_nsec;
+ stx->stx_btime = (struct statx_timestamp){.tv_sec=0, .tv_nsec=0};
+ stx->stx_mask = STATX_BASIC_STATS;
+ ret = EINVAL;
+ #endif
+
+ return ret;
+}
--
2.37.1
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