1#ifndef __API_FS__
 2#define __API_FS__
 3
 4#ifndef SYSFS_MAGIC
 5#define SYSFS_MAGIC            0x62656572
 6#endif
 7
 8#ifndef PROC_SUPER_MAGIC
 9#define PROC_SUPER_MAGIC       0x9fa0
 
 
 
 
10#endif
11
12const char *sysfs__mountpoint(void);
13const char *procfs__mountpoint(void);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
14#endif /* __API_FS__ */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __API_FS__
 3#define __API_FS__
 4
 5#include <stdbool.h>
 6#include <unistd.h>
 
 7
 8/*
 9 * On most systems <limits.h> would have given us this, but  not on some systems
10 * (e.g. GNU/Hurd).
11 */
12#ifndef PATH_MAX
13#define PATH_MAX 4096
14#endif
15
16#define FS(name)				\
17	const char *name##__mountpoint(void);	\
18	const char *name##__mount(void);	\
19	bool name##__configured(void);		\
20
21FS(sysfs)
22FS(procfs)
23FS(debugfs)
24FS(tracefs)
25FS(hugetlbfs)
26FS(bpf_fs)
27
28#undef FS
29
30
31int filename__read_int(const char *filename, int *value);
32int filename__read_ull(const char *filename, unsigned long long *value);
33int filename__read_xll(const char *filename, unsigned long long *value);
34int filename__read_str(const char *filename, char **buf, size_t *sizep);
35
36int filename__write_int(const char *filename, int value);
37
38int procfs__read_str(const char *entry, char **buf, size_t *sizep);
39
40int sysctl__read_int(const char *sysctl, int *value);
41int sysfs__read_int(const char *entry, int *value);
42int sysfs__read_ull(const char *entry, unsigned long long *value);
43int sysfs__read_xll(const char *entry, unsigned long long *value);
44int sysfs__read_str(const char *entry, char **buf, size_t *sizep);
45int sysfs__read_bool(const char *entry, bool *value);
46
47int sysfs__write_int(const char *entry, int value);
48#endif /* __API_FS__ */