token.c File Reference

Tokenisation code and constants. More...

#include <freeradius-devel/util/misc.h>
#include <freeradius-devel/util/strerror.h>
#include <freeradius-devel/util/token.h>
#include <ctype.h>

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Macros
#define	T(_x)   [T_OP_ ## _x] = true
#define	T(_x)   [T_ ## _x] = true
#define	T(_x)   [T_## _x] = true
#define	TOKEN_MATCH(bptr, tptr)

Functions
ssize_t	fr_skip_string (char const *start, char const *end)
	Skip a quoted string.
char const *	fr_token_name (int token)
fr_token_t	getop (char const **ptr)
fr_token_t	getstring (char const **ptr, char *buf, int buflen, bool unescape)
static fr_token_t	getthing (char const **ptr, char *buf, int buflen, bool tok, fr_table_num_ordered_t const *tokenlist, size_t tokenlist_len, bool unescape)
fr_token_t	gettoken (char const **ptr, char *buf, int buflen, bool unescape)
int	getword (char const **ptr, char *buf, int buflen, bool unescape)

Variables
const bool	fr_assignment_op [T_TOKEN_LAST]
const bool	fr_binary_op [T_TOKEN_LAST]
const bool	fr_comparison_op [T_TOKEN_LAST]
const bool	fr_list_assignment_op [T_TOKEN_LAST]
const bool	fr_str_tok [T_TOKEN_LAST]
const char	fr_token_quote [T_TOKEN_LAST]
	Convert tokens back to a quoting character.
fr_table_num_sorted_t const	fr_token_quotes_table []
size_t	fr_token_quotes_table_len = NUM_ELEMENTS(fr_token_quotes_table)
char const *	fr_tokens [T_TOKEN_LAST]
fr_table_num_ordered_t const	fr_tokens_table []
size_t	fr_tokens_table_len = NUM_ELEMENTS(fr_tokens_table)

Detailed Description

Tokenisation code and constants.

This is mostly for the attribute filter and user files.

Copyright

2001,2006 The FreeRADIUS server project

Definition in file token.c.

Macro Definition Documentation

T [1/3]

#define T

(

_x

)

[T_OP_ ## _x] = true

Definition at line 166 of file token.c.

T [2/3]

#define T

(

_x

)

[T_ ## _x] = true

Definition at line 166 of file token.c.

T [3/3]

#define T

(

_x

)

[T_## _x] = true

Definition at line 166 of file token.c.

TOKEN_MATCH

#define TOKEN_MATCH	(		bptr,
			tptr
	)

Value:

        ( (tptr)[0] == (bptr)[0] && \
         ((tptr)[1] == (bptr)[1] || (tptr)[1] == 0))

Definition at line 242 of file token.c.

Function Documentation

fr_skip_string()

ssize_t fr_skip_string	(	char const *	start,
		char const *	end
	)

Skip a quoted string.

Parameters

[in]	start	start of the string, pointing to the quotation character
[in]	end	end of the string (or NULL for zero-terminated strings)

Returns

>0 length of the string which was parsed <=0 on error

Definition at line 525 of file token.c.

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fr_token_name()

char const * fr_token_name

(

int

token

)

Definition at line 511 of file token.c.

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getop()

fr_token_t getop

(

char const **

ptr

)

Definition at line 476 of file token.c.

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getstring()

fr_token_t getstring	(	char const **	ptr,
		char *	buf,
		int	buflen,
		bool	unescape
	)

Definition at line 492 of file token.c.

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getthing()

static fr_token_t getthing ( char const **  ptr, char *  buf, int  buflen, bool  tok, fr_table_num_ordered_t const *  tokenlist, size_t  tokenlist_len, bool  unescape  )

static

Definition at line 253 of file token.c.

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gettoken()

fr_token_t gettoken	(	char const **	ptr,
		char *	buf,
		int	buflen,
		bool	unescape
	)

Definition at line 468 of file token.c.

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getword()

int getword	(	char const **	ptr,
		char *	buf,
		int	buflen,
		bool	unescape
	)

Definition at line 459 of file token.c.

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Variable Documentation

fr_assignment_op

const bool fr_assignment_op[T_TOKEN_LAST]

Initial value:

= {
        T(INCRM),               
 
        T(ADD_EQ),
        T(SUB_EQ),
        T(MUL_EQ),
        T(DIV_EQ),
        T(AND_EQ),
        T(OR_EQ),
        T(RSHIFT_EQ),
        T(LSHIFT_EQ),
 
        T(SET),
        T(EQ),
        T(PREPEND),
}

Definition at line 168 of file token.c.

fr_binary_op

const bool fr_binary_op[T_TOKEN_LAST]

Initial value:

= {
        T(ADD),
        T(SUB),
        T(MUL),
        T(DIV),
        T(AND),
        T(OR),
        T(MOD),
        T(RSHIFT),
        T(LSHIFT),
}

Definition at line 216 of file token.c.

fr_comparison_op

const bool fr_comparison_op[T_TOKEN_LAST]

Initial value:

= {
        T(NE),
        T(GE),
        T(GT),
        T(LE),
        T(LT),
        T(REG_EQ),
        T(REG_NE),
        T(CMP_TRUE),
        T(CMP_FALSE),
        T(CMP_EQ),
        T(CMP_EQ_TYPE),
        T(CMP_NE_TYPE),
}

Definition at line 198 of file token.c.

fr_list_assignment_op

const bool fr_list_assignment_op[T_TOKEN_LAST]

Initial value:

= {
        T(ADD_EQ),              
        T(SUB_EQ),              
        T(AND_EQ),              
        T(OR_EQ),               
        T(LE),                  
        T(GE),                  
 
        T(SET),
        T(EQ),
        T(PREPEND),             
}

Definition at line 185 of file token.c.

fr_str_tok

const bool fr_str_tok[T_TOKEN_LAST]

Initial value:

= {
        T(BARE_WORD),
        T(DOUBLE_QUOTED_STRING),
        T(SINGLE_QUOTED_STRING),
        T(BACK_QUOTED_STRING),
}

Definition at line 231 of file token.c.

fr_token_quote

const char fr_token_quote[T_TOKEN_LAST]

Initial value:

= {
        [ 0 ... T_HASH ] = '?', 
 
        [T_BARE_WORD] = '\0',
        [T_DOUBLE_QUOTED_STRING] = '"',
        [T_SINGLE_QUOTED_STRING] = '\'',
        [T_BACK_QUOTED_STRING] = '`',
        [T_SOLIDUS_QUOTED_STRING] = '/',
}

Convert tokens back to a quoting character.

Non-string types convert to '?' to screw ups can be identified easily

Definition at line 156 of file token.c.

fr_token_quotes_table

fr_table_num_sorted_t const fr_token_quotes_table[]

Initial value:

= {
        { L(""),        T_BARE_WORD             },
        { L("'"),       T_SINGLE_QUOTED_STRING  },
        { L("/"),       T_SOLIDUS_QUOTED_STRING },
        { L("\""),      T_DOUBLE_QUOTED_STRING  },
        { L("`"),       T_BACK_QUOTED_STRING    }
}

Definition at line 66 of file token.c.

fr_token_quotes_table_len

size_t fr_token_quotes_table_len = NUM_ELEMENTS(fr_token_quotes_table)

Definition at line 73 of file token.c.

fr_tokens

char const* fr_tokens[T_TOKEN_LAST]

Definition at line 78 of file token.c.

fr_tokens_table

fr_table_num_ordered_t const fr_tokens_table[]

Definition at line 33 of file token.c.

fr_tokens_table_len

size_t fr_tokens_table_len = NUM_ELEMENTS(fr_tokens_table)

Definition at line 64 of file token.c.