1 #ifndef _LINUX_STRING_HELPERS_H_
2 #define _LINUX_STRING_HELPERS_H_
4 #include <linux/types.h>
6 /* Descriptions of the types of units to
8 enum string_size_units {
9 STRING_UNITS_10, /* use powers of 10^3 (standard SI) */
10 STRING_UNITS_2, /* use binary powers of 2^10 */
13 void string_get_size(u64 size, u64 blk_size, enum string_size_units units,
16 #define UNESCAPE_SPACE 0x01
17 #define UNESCAPE_OCTAL 0x02
18 #define UNESCAPE_HEX 0x04
19 #define UNESCAPE_SPECIAL 0x08
20 #define UNESCAPE_ANY \
21 (UNESCAPE_SPACE | UNESCAPE_OCTAL | UNESCAPE_HEX | UNESCAPE_SPECIAL)
23 int string_unescape(char *src, char *dst, size_t size, unsigned int flags);
25 static inline int string_unescape_inplace(char *buf, unsigned int flags)
27 return string_unescape(buf, buf, 0, flags);
30 static inline int string_unescape_any(char *src, char *dst, size_t size)
32 return string_unescape(src, dst, size, UNESCAPE_ANY);
35 static inline int string_unescape_any_inplace(char *buf)
37 return string_unescape_any(buf, buf, 0);
40 #define ESCAPE_SPACE 0x01
41 #define ESCAPE_SPECIAL 0x02
42 #define ESCAPE_NULL 0x04
43 #define ESCAPE_OCTAL 0x08
45 (ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_SPECIAL | ESCAPE_NULL)
46 #define ESCAPE_NP 0x10
47 #define ESCAPE_ANY_NP (ESCAPE_ANY | ESCAPE_NP)
48 #define ESCAPE_HEX 0x20
50 int string_escape_mem(const char *src, size_t isz, char *dst, size_t osz,
51 unsigned int flags, const char *only);
53 static inline int string_escape_mem_any_np(const char *src, size_t isz,
54 char *dst, size_t osz, const char *only)
56 return string_escape_mem(src, isz, dst, osz, ESCAPE_ANY_NP, only);
59 static inline int string_escape_str(const char *src, char *dst, size_t sz,
60 unsigned int flags, const char *only)
62 return string_escape_mem(src, strlen(src), dst, sz, flags, only);
65 static inline int string_escape_str_any_np(const char *src, char *dst,
66 size_t sz, const char *only)
68 return string_escape_str(src, dst, sz, ESCAPE_ANY_NP, only);