Mike Yuan
b8df25dcfe
Added in https://github.com/torvalds/linux/commit/6140be90ec70c39fa844741ca3cc807dd0866394 However, when O_PATH fds are encountered we'd have to go by /proc/self/fd/ still, since the kernel people are reluctant to make the new syscalls work with them (https://lore.kernel.org/linux-fsdevel/20250206-steril-raumplanung-733224062432@brauner/) Hence getxattrat() and listxattrat() are not employed. While at it, remove the discrepancy between path being NULL and empty - I don't grok the "security issue" claimed earlier, but nowadays even the kernel treats the two as identical: https://github.com/torvalds/linux/commit/e896474fe4851ffc4dd860c92daa906783090346
58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include <stdbool.h>
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#include <stddef.h>
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#include <sys/types.h>
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#include "time-util.h"
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int getxattr_at_malloc(int fd, const char *path, const char *name, int at_flags, char **ret);
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static inline int getxattr_malloc(const char *path, const char *name, char **ret) {
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return getxattr_at_malloc(AT_FDCWD, path, name, AT_SYMLINK_FOLLOW, ret);
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}
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static inline int lgetxattr_malloc(const char *path, const char *name, char **ret) {
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return getxattr_at_malloc(AT_FDCWD, path, name, 0, ret);
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}
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static inline int fgetxattr_malloc(int fd, const char *name, char **ret) {
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return getxattr_at_malloc(fd, NULL, name, AT_EMPTY_PATH, ret);
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}
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int getxattr_at_bool(int fd, const char *path, const char *name, int at_flags);
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int listxattr_at_malloc(int fd, const char *path, int at_flags, char **ret);
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static inline int listxattr_malloc(const char *path, char **ret) {
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return listxattr_at_malloc(AT_FDCWD, path, AT_SYMLINK_FOLLOW, ret);
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}
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static inline int llistxattr_malloc(const char *path, char **ret) {
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return listxattr_at_malloc(AT_FDCWD, path, 0, ret);
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}
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static inline int flistxattr_malloc(int fd, char **ret) {
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return listxattr_at_malloc(fd, NULL, AT_EMPTY_PATH, ret);
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}
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int xsetxattr_full(
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int fd,
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const char *path,
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int at_flags,
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const char *name,
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const char *value,
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size_t size,
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int xattr_flags);
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static inline int xsetxattr(
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int fd,
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const char *path,
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int at_flags,
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const char *name,
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const char *value) {
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return xsetxattr_full(fd, path, at_flags, name, value, SIZE_MAX, 0);
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}
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int xremovexattr(int fd, const char *path, int at_flags, const char *name);
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int fd_setcrtime(int fd, usec_t usec);
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int getcrtime_at(int fd, const char *path, int at_flags, usec_t *ret);
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static inline int fd_getcrtime(int fd, usec_t *ret) {
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return getcrtime_at(fd, NULL, 0, ret);
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}
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