linux-stable/include/linux/parser.h
Eric Biggers 8b85996095 linux/parser.h: add include guards
<linux/parser.h> is missing include guards.  Add them.

This is needed to allow declaring a function in <linux/fscrypt.h> that
takes a substring_t parameter.

Link: https://lore.kernel.org/r/20200512233251.118314-2-ebiggers@kernel.org
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-05-15 13:51:28 -07:00

39 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* linux/include/linux/parser.h
*
* Header for lib/parser.c
* Intended use of these functions is parsing filesystem argument lists,
* but could potentially be used anywhere else that simple option=arg
* parsing is required.
*/
#ifndef _LINUX_PARSER_H
#define _LINUX_PARSER_H
/* associates an integer enumerator with a pattern string. */
struct match_token {
int token;
const char *pattern;
};
typedef struct match_token match_table_t[];
/* Maximum number of arguments that match_token will find in a pattern */
enum {MAX_OPT_ARGS = 3};
/* Describe the location within a string of a substring */
typedef struct {
char *from;
char *to;
} substring_t;
int match_token(char *, const match_table_t table, substring_t args[]);
int match_int(substring_t *, int *result);
int match_u64(substring_t *, u64 *result);
int match_octal(substring_t *, int *result);
int match_hex(substring_t *, int *result);
bool match_wildcard(const char *pattern, const char *str);
size_t match_strlcpy(char *, const substring_t *, size_t);
char *match_strdup(const substring_t *);
#endif /* _LINUX_PARSER_H */