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linux-next/include/linux/parser.h
Steven Whitehouse a447c09324 vfs: Use const for kernel parser table
This is a much better version of a previous patch to make the parser
tables constant. Rather than changing the typedef, we put the "const" in
all the various places where its required, allowing the __initconst
exception for nfsroot which was the cause of the previous trouble.

This was posted for review some time ago and I believe its been in -mm
since then.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Alexander Viro <aviro@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-13 10:10:37 -07:00

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923 B
C

/*
* 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.
*/
/* 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_octal(substring_t *, int *result);
int match_hex(substring_t *, int *result);
size_t match_strlcpy(char *, const substring_t *, size_t);
char *match_strdup(const substring_t *);