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1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * linux/include/linux/parser.h
4 *
5 * Header for lib/parser.c
6 * Intended use of these functions is parsing filesystem argument lists,
7 * but could potentially be used anywhere else that simple option=arg
8 * parsing is required.
9 */
10
11
12 /* associates an integer enumerator with a pattern string. */
13 struct match_token {
14 int token;
15 const char *pattern;
16 };
17
18 typedef struct match_token match_table_t[];
19
20 /* Maximum number of arguments that match_token will find in a pattern */
21 enum {MAX_OPT_ARGS = 3};
22
23 /* Describe the location within a string of a substring */
24 typedef struct {
25 char *from;
26 char *to;
27 } substring_t;
28
29 int match_token(char *, const match_table_t table, substring_t args[]);
30 int match_int(substring_t *, int *result);
31 int match_u64(substring_t *, u64 *result);
32 int match_octal(substring_t *, int *result);
33 int match_hex(substring_t *, int *result);
34 bool match_wildcard(const char *pattern, const char *str);
35 size_t match_strlcpy(char *, const substring_t *, size_t);
36 char *match_strdup(const substring_t *);