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TOMOYO Linux Cross Reference
Linux/tools/lib/api/fs/fs.h

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  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 
 21 FS(sysfs)
 22 FS(procfs)
 23 FS(debugfs)
 24 FS(tracefs)
 25 FS(hugetlbfs)
 26 FS(bpf_fs)
 27 
 28 #undef FS
 29 
 30 
 31 int filename__read_int(const char *filename, int *value);
 32 int filename__read_ull(const char *filename, unsigned long long *value);
 33 int filename__read_str(const char *filename, char **buf, size_t *sizep);
 34 
 35 int filename__write_int(const char *filename, int value);
 36 
 37 int procfs__read_str(const char *entry, char **buf, size_t *sizep);
 38 
 39 int sysctl__read_int(const char *sysctl, int *value);
 40 int sysfs__read_int(const char *entry, int *value);
 41 int sysfs__read_ull(const char *entry, unsigned long long *value);
 42 int sysfs__read_str(const char *entry, char **buf, size_t *sizep);
 43 int sysfs__read_bool(const char *entry, bool *value);
 44 
 45 int sysfs__write_int(const char *entry, int value);
 46 #endif /* __API_FS__ */
 47 

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