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136 lines
3.4 KiB
136 lines
3.4 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _LINUX_STRING_HELPERS_H_ |
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#define _LINUX_STRING_HELPERS_H_ |
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#include <linux/bits.h> |
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#include <linux/ctype.h> |
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#include <linux/string.h> |
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#include <linux/types.h> |
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struct device; |
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struct file; |
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struct task_struct; |
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/* Descriptions of the types of units to |
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* print in */ |
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enum string_size_units { |
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STRING_UNITS_10, /* use powers of 10^3 (standard SI) */ |
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STRING_UNITS_2, /* use binary powers of 2^10 */ |
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}; |
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void string_get_size(u64 size, u64 blk_size, enum string_size_units units, |
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char *buf, int len); |
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int parse_int_array_user(const char __user *from, size_t count, int **array); |
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#define UNESCAPE_SPACE BIT(0) |
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#define UNESCAPE_OCTAL BIT(1) |
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#define UNESCAPE_HEX BIT(2) |
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#define UNESCAPE_SPECIAL BIT(3) |
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#define UNESCAPE_ANY \ |
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(UNESCAPE_SPACE | UNESCAPE_OCTAL | UNESCAPE_HEX | UNESCAPE_SPECIAL) |
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#define UNESCAPE_ALL_MASK GENMASK(3, 0) |
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int string_unescape(char *src, char *dst, size_t size, unsigned int flags); |
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static inline int string_unescape_inplace(char *buf, unsigned int flags) |
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{ |
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return string_unescape(buf, buf, 0, flags); |
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} |
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static inline int string_unescape_any(char *src, char *dst, size_t size) |
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{ |
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return string_unescape(src, dst, size, UNESCAPE_ANY); |
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} |
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static inline int string_unescape_any_inplace(char *buf) |
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{ |
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return string_unescape_any(buf, buf, 0); |
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} |
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#define ESCAPE_SPACE BIT(0) |
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#define ESCAPE_SPECIAL BIT(1) |
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#define ESCAPE_NULL BIT(2) |
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#define ESCAPE_OCTAL BIT(3) |
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#define ESCAPE_ANY \ |
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(ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_SPECIAL | ESCAPE_NULL) |
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#define ESCAPE_NP BIT(4) |
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#define ESCAPE_ANY_NP (ESCAPE_ANY | ESCAPE_NP) |
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#define ESCAPE_HEX BIT(5) |
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#define ESCAPE_NA BIT(6) |
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#define ESCAPE_NAP BIT(7) |
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#define ESCAPE_APPEND BIT(8) |
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#define ESCAPE_ALL_MASK GENMASK(8, 0) |
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int string_escape_mem(const char *src, size_t isz, char *dst, size_t osz, |
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unsigned int flags, const char *only); |
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static inline int string_escape_mem_any_np(const char *src, size_t isz, |
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char *dst, size_t osz, const char *only) |
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{ |
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return string_escape_mem(src, isz, dst, osz, ESCAPE_ANY_NP, only); |
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} |
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static inline int string_escape_str(const char *src, char *dst, size_t sz, |
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unsigned int flags, const char *only) |
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{ |
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return string_escape_mem(src, strlen(src), dst, sz, flags, only); |
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} |
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static inline int string_escape_str_any_np(const char *src, char *dst, |
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size_t sz, const char *only) |
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{ |
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return string_escape_str(src, dst, sz, ESCAPE_ANY_NP, only); |
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} |
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static inline void string_upper(char *dst, const char *src) |
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{ |
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do { |
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*dst++ = toupper(*src); |
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} while (*src++); |
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} |
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static inline void string_lower(char *dst, const char *src) |
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{ |
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do { |
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*dst++ = tolower(*src); |
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} while (*src++); |
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} |
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char *kstrdup_quotable(const char *src, gfp_t gfp); |
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char *kstrdup_quotable_cmdline(struct task_struct *task, gfp_t gfp); |
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char *kstrdup_quotable_file(struct file *file, gfp_t gfp); |
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char **kasprintf_strarray(gfp_t gfp, const char *prefix, size_t n); |
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void kfree_strarray(char **array, size_t n); |
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char **devm_kasprintf_strarray(struct device *dev, const char *prefix, size_t n); |
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static inline const char *str_yes_no(bool v) |
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{ |
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return v ? "yes" : "no"; |
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} |
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static inline const char *str_on_off(bool v) |
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{ |
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return v ? "on" : "off"; |
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} |
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static inline const char *str_enable_disable(bool v) |
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{ |
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return v ? "enable" : "disable"; |
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} |
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static inline const char *str_enabled_disabled(bool v) |
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{ |
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return v ? "enabled" : "disabled"; |
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} |
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static inline const char *str_read_write(bool v) |
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{ |
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return v ? "read" : "write"; |
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} |
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#endif
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