Blame view

kernel/linux-rt-4.4.41/include/linux/string_helpers.h 1.95 KB
5113f6f70   김현기   kernel add
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
  #ifndef _LINUX_STRING_HELPERS_H_
  #define _LINUX_STRING_HELPERS_H_
  
  #include <linux/types.h>
  
  /* Descriptions of the types of units to
   * print in */
  enum string_size_units {
  	STRING_UNITS_10,	/* use powers of 10^3 (standard SI) */
  	STRING_UNITS_2,		/* use binary powers of 2^10 */
  };
  
  void string_get_size(u64 size, u64 blk_size, enum string_size_units units,
  		     char *buf, int len);
  
  #define UNESCAPE_SPACE		0x01
  #define UNESCAPE_OCTAL		0x02
  #define UNESCAPE_HEX		0x04
  #define UNESCAPE_SPECIAL	0x08
  #define UNESCAPE_ANY		\
  	(UNESCAPE_SPACE | UNESCAPE_OCTAL | UNESCAPE_HEX | UNESCAPE_SPECIAL)
  
  int string_unescape(char *src, char *dst, size_t size, unsigned int flags);
  
  static inline int string_unescape_inplace(char *buf, unsigned int flags)
  {
  	return string_unescape(buf, buf, 0, flags);
  }
  
  static inline int string_unescape_any(char *src, char *dst, size_t size)
  {
  	return string_unescape(src, dst, size, UNESCAPE_ANY);
  }
  
  static inline int string_unescape_any_inplace(char *buf)
  {
  	return string_unescape_any(buf, buf, 0);
  }
  
  #define ESCAPE_SPACE		0x01
  #define ESCAPE_SPECIAL		0x02
  #define ESCAPE_NULL		0x04
  #define ESCAPE_OCTAL		0x08
  #define ESCAPE_ANY		\
  	(ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_SPECIAL | ESCAPE_NULL)
  #define ESCAPE_NP		0x10
  #define ESCAPE_ANY_NP		(ESCAPE_ANY | ESCAPE_NP)
  #define ESCAPE_HEX		0x20
  
  int string_escape_mem(const char *src, size_t isz, char *dst, size_t osz,
  		unsigned int flags, const char *only);
  
  static inline int string_escape_mem_any_np(const char *src, size_t isz,
  		char *dst, size_t osz, const char *only)
  {
  	return string_escape_mem(src, isz, dst, osz, ESCAPE_ANY_NP, only);
  }
  
  static inline int string_escape_str(const char *src, char *dst, size_t sz,
  		unsigned int flags, const char *only)
  {
  	return string_escape_mem(src, strlen(src), dst, sz, flags, only);
  }
  
  static inline int string_escape_str_any_np(const char *src, char *dst,
  		size_t sz, const char *only)
  {
  	return string_escape_str(src, dst, sz, ESCAPE_ANY_NP, only);
  }
  
  #endif