Fix the equality operator

[amule.git] / src / IPFilterScanner.cpp

#line 2 "IPFilterScanner.cpp"

#line 4 "IPFilterScanner.cpp"

#define  YY_INT_ALIGNED short int

/* A lexical scanner generated by flex */

#define yy_create_buffer yyip_create_buffer
#define yy_delete_buffer yyip_delete_buffer
#define yy_flex_debug yyip_flex_debug
#define yy_init_buffer yyip_init_buffer
#define yy_flush_buffer yyip_flush_buffer
#define yy_load_buffer_state yyip_load_buffer_state
#define yy_switch_to_buffer yyip_switch_to_buffer
#define yyin yyipin
#define yyleng yyipleng
#define yylex yyiplex
#define yylineno yyiplineno
#define yyout yyipout
#define yyrestart yyiprestart
#define yytext yyiptext
#define yywrap yyipwrap
#define yyalloc yyipalloc
#define yyrealloc yyiprealloc
#define yyfree yyipfree

#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5
#define YY_FLEX_SUBMINOR_VERSION 35
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif

/* First, we deal with  platform-specific or compiler-specific issues. */

/* begin standard C headers. */
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>

/* end standard C headers. */

/* flex integer type definitions */

#ifndef FLEXINT_H
#define FLEXINT_H

/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */

#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L

/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
 * if you want the limit (max/min) macros for int types.
 */
#ifndef __STDC_LIMIT_MACROS
#define __STDC_LIMIT_MACROS 1
#endif

#include <inttypes.h>
typedef int8_t flex_int8_t;
typedef uint8_t flex_uint8_t;
typedef int16_t flex_int16_t;
typedef uint16_t flex_uint16_t;
typedef int32_t flex_int32_t;
typedef uint32_t flex_uint32_t;
#else
typedef signed char flex_int8_t;
typedef short int flex_int16_t;
typedef int flex_int32_t;
typedef unsigned char flex_uint8_t;
typedef unsigned short int flex_uint16_t;
typedef unsigned int flex_uint32_t;
#endif /* ! C99 */

/* Limits of integral types. */
#ifndef INT8_MIN
#define INT8_MIN               (-128)
#endif
#ifndef INT16_MIN
#define INT16_MIN              (-32767-1)
#endif
#ifndef INT32_MIN
#define INT32_MIN              (-2147483647-1)
#endif
#ifndef INT8_MAX
#define INT8_MAX               (127)
#endif
#ifndef INT16_MAX
#define INT16_MAX              (32767)
#endif
#ifndef INT32_MAX
#define INT32_MAX              (2147483647)
#endif
#ifndef UINT8_MAX
#define UINT8_MAX              (255U)
#endif
#ifndef UINT16_MAX
#define UINT16_MAX             (65535U)
#endif
#ifndef UINT32_MAX
#define UINT32_MAX             (4294967295U)
#endif

#endif /* ! FLEXINT_H */

#ifdef __cplusplus

/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST

#else   /* ! __cplusplus */

/* C99 requires __STDC__ to be defined as 1. */
#if defined (__STDC__)

#define YY_USE_CONST

#endif  /* defined (__STDC__) */
#endif  /* ! __cplusplus */

#ifdef YY_USE_CONST
#define yyconst const
#else
#define yyconst
#endif

/* Returned upon end-of-file. */
#define YY_NULL 0

/* Promotes a possibly negative, possibly signed char to an unsigned
 * integer for use as an array index.  If the signed char is negative,
 * we want to instead treat it as an 8-bit unsigned char, hence the
 * double cast.
 */
#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)

/* Enter a start condition.  This macro really ought to take a parameter,
 * but we do it the disgusting crufty way forced on us by the ()-less
 * definition of BEGIN.
 */
#define BEGIN (yy_start) = 1 + 2 *

/* Translate the current start state into a value that can be later handed
 * to BEGIN to return to the state.  The YYSTATE alias is for lex
 * compatibility.
 */
#define YY_START (((yy_start) - 1) / 2)
#define YYSTATE YY_START

/* Action number for EOF rule of a given start state. */
#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)

/* Special action meaning "start processing a new file". */
#define YY_NEW_FILE yyiprestart(yyipin  )

#define YY_END_OF_BUFFER_CHAR 0

/* Size of default input buffer. */
#ifndef YY_BUF_SIZE
#define YY_BUF_SIZE 16384
#endif

/* The state buf must be large enough to hold one state per character in the main buffer.
 */
#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))

#ifndef YY_TYPEDEF_YY_BUFFER_STATE
#define YY_TYPEDEF_YY_BUFFER_STATE
typedef struct yy_buffer_state *YY_BUFFER_STATE;
#endif

extern int yyipleng;

extern FILE *yyipin, *yyipout;

#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2

    #define YY_LESS_LINENO(n)

/* Return all but the first "n" matched characters back to the input stream. */
#define yyless(n) \
        do \
                { \
                /* Undo effects of setting up yyiptext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
                *yy_cp = (yy_hold_char); \
                YY_RESTORE_YY_MORE_OFFSET \
                (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
                YY_DO_BEFORE_ACTION; /* set up yyiptext again */ \
                } \
        while ( 0 )

#define unput(c) yyunput( c, (yytext_ptr)  )

#ifndef YY_TYPEDEF_YY_SIZE_T
#define YY_TYPEDEF_YY_SIZE_T
typedef size_t yy_size_t;
#endif

#ifndef YY_STRUCT_YY_BUFFER_STATE
#define YY_STRUCT_YY_BUFFER_STATE
struct yy_buffer_state
        {
        FILE *yy_input_file;

        char *yy_ch_buf;                /* input buffer */
        char *yy_buf_pos;               /* current position in input buffer */

        /* Size of input buffer in bytes, not including room for EOB
         * characters.
         */
        yy_size_t yy_buf_size;

        /* Number of characters read into yy_ch_buf, not including EOB
         * characters.
         */
        int yy_n_chars;

        /* Whether we "own" the buffer - i.e., we know we created it,
         * and can realloc() it to grow it, and should free() it to
         * delete it.
         */
        int yy_is_our_buffer;

        /* Whether this is an "interactive" input source; if so, and
         * if we're using stdio for input, then we want to use getc()
         * instead of fread(), to make sure we stop fetching input after
         * each newline.
         */
        int yy_is_interactive;

        /* Whether we're considered to be at the beginning of a line.
         * If so, '^' rules will be active on the next match, otherwise
         * not.
         */
        int yy_at_bol;

    int yy_bs_lineno; /**< The line count. */
    int yy_bs_column; /**< The column count. */

        /* Whether to try to fill the input buffer when we reach the
         * end of it.
         */
        int yy_fill_buffer;

        int yy_buffer_status;

#define YY_BUFFER_NEW 0
#define YY_BUFFER_NORMAL 1
        /* When an EOF's been seen but there's still some text to process
         * then we mark the buffer as YY_EOF_PENDING, to indicate that we
         * shouldn't try reading from the input source any more.  We might
         * still have a bunch of tokens to match, though, because of
         * possible backing-up.
         *
         * When we actually see the EOF, we change the status to "new"
         * (via yyiprestart()), so that the user can continue scanning by
         * just pointing yyipin at a new input file.
         */
#define YY_BUFFER_EOF_PENDING 2

        };
#endif /* !YY_STRUCT_YY_BUFFER_STATE */

/* Stack of input buffers. */
static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */

/* We provide macros for accessing buffer states in case in the
 * future we want to put the buffer states in a more general
 * "scanner state".
 *
 * Returns the top of the stack, or NULL.
 */
#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
                          ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
                          : NULL)

/* Same as previous macro, but useful when we know that the buffer stack is not
 * NULL or when we need an lvalue. For internal use only.
 */
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]

/* yy_hold_char holds the character lost when yyiptext is formed. */
static char yy_hold_char;
static int yy_n_chars;          /* number of characters read into yy_ch_buf */
int yyipleng;

/* Points to current character in buffer. */
static char *yy_c_buf_p = (char *) 0;
static int yy_init = 0;         /* whether we need to initialize */
static int yy_start = 0;        /* start state number */

/* Flag which is used to allow yyipwrap()'s to do buffer switches
 * instead of setting up a fresh yyipin.  A bit of a hack ...
 */
static int yy_did_buffer_switch_on_eof;

void yyiprestart (FILE *input_file  );
void yyip_switch_to_buffer (YY_BUFFER_STATE new_buffer  );
YY_BUFFER_STATE yyip_create_buffer (FILE *file,int size  );
void yyip_delete_buffer (YY_BUFFER_STATE b  );
void yyip_flush_buffer (YY_BUFFER_STATE b  );
void yyippush_buffer_state (YY_BUFFER_STATE new_buffer  );
void yyippop_buffer_state (void );

static void yyipensure_buffer_stack (void );
static void yyip_load_buffer_state (void );
static void yyip_init_buffer (YY_BUFFER_STATE b,FILE *file  );

#define YY_FLUSH_BUFFER yyip_flush_buffer(YY_CURRENT_BUFFER )

YY_BUFFER_STATE yyip_scan_buffer (char *base,yy_size_t size  );
YY_BUFFER_STATE yyip_scan_string (yyconst char *yy_str  );
YY_BUFFER_STATE yyip_scan_bytes (yyconst char *bytes,int len  );

void *yyipalloc (yy_size_t  );
void *yyiprealloc (void *,yy_size_t  );
void yyipfree (void *  );

#define yy_new_buffer yyip_create_buffer

#define yy_set_interactive(is_interactive) \
        { \
        if ( ! YY_CURRENT_BUFFER ){ \
        yyipensure_buffer_stack (); \
                YY_CURRENT_BUFFER_LVALUE =    \
            yyip_create_buffer(yyipin,YY_BUF_SIZE ); \
        } \
        YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
        }

#define yy_set_bol(at_bol) \
        { \
        if ( ! YY_CURRENT_BUFFER ){\
        yyipensure_buffer_stack (); \
                YY_CURRENT_BUFFER_LVALUE =    \
            yyip_create_buffer(yyipin,YY_BUF_SIZE ); \
        } \
        YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
        }

#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)

/* Begin user sect3 */

#define yyipwrap(n) 1
#define YY_SKIP_YYWRAP

typedef unsigned char YY_CHAR;

FILE *yyipin = (FILE *) 0, *yyipout = (FILE *) 0;

typedef int yy_state_type;

extern int yyiplineno;

int yyiplineno = 1;

extern char *yyiptext;
#define yytext_ptr yyiptext

static yy_state_type yy_get_previous_state (void );
static yy_state_type yy_try_NUL_trans (yy_state_type current_state  );
static int yy_get_next_buffer (void );
static void yy_fatal_error (yyconst char msg[]  );

/* Done after the current pattern has been matched and before the
 * corresponding action - sets up yyiptext.
 */
#define YY_DO_BEFORE_ACTION \
        (yytext_ptr) = yy_bp; \
        yyipleng = (size_t) (yy_cp - yy_bp); \
        (yy_hold_char) = *yy_cp; \
        *yy_cp = '\0'; \
        (yy_c_buf_p) = yy_cp;

#define YY_NUM_RULES 6
#define YY_END_OF_BUFFER 7
/* This struct is not used in this scanner,
   but its presence is necessary. */
struct yy_trans_info
        {
        flex_int32_t yy_verify;
        flex_int32_t yy_nxt;
        };
static yyconst flex_int16_t yy_accept[169] =
    {   0,
        0,    0,    7,    6,    6,    4,    5,    5,    2,    5,
        5,    0,    4,    0,    0,    0,    2,    0,    2,    2,
        0,    0,    0,    0,    2,    2,    0,    0,    0,    0,
        2,    2,    0,    0,    0,    0,    2,    2,    0,    0,
        0,    0,    2,    2,    0,    0,    0,    0,    2,    2,
        0,    0,    0,    0,    2,    2,    0,    0,    0,    0,
        0,    2,    2,    0,    0,    0,    0,    0,    0,    2,
        2,    2,    0,    0,    0,    0,    0,    2,    2,    2,
        0,    0,    0,    0,    2,    2,    0,    0,    0,    0,
        2,    2,    0,    0,    0,    0,    2,    2,    0,    0,

        0,    0,    2,    2,    0,    0,    0,    0,    2,    2,
        0,    0,    0,    3,    0,    2,    2,    0,    0,    0,
        3,    3,    2,    2,    0,    1,    0,    3,    2,    1,
        1,    0,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    0
    } ;

static yyconst flex_int32_t yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
        1,    1,    2,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    2,    1,    1,    4,    1,    1,    1,    1,    1,
        1,    1,    1,    5,    6,    7,    1,    8,    8,    8,
        8,    8,    8,    8,    8,    8,    8,    9,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1
    } ;

static yyconst flex_int32_t yy_meta[10] =
    {   0,
        1,    1,    2,    1,    1,    1,    1,    1,    1
    } ;

static yyconst flex_int16_t yy_base[173] =
    {   0,
        0,    3,  231,  232,   11,  232,  221,   14,  220,   17,
       25,    0,  232,  219,    0,    0,  218,    0,  217,   33,
       36,  217,    0,   38,    0,   45,   47,  216,  215,  211,
       54,  210,  209,  208,   56,  207,   58,  198,   60,  197,
      196,  195,  194,  191,  189,  188,   62,  187,   64,  180,
       71,  179,  178,  177,  176,  172,  171,   78,  170,   85,
      169,   92,  165,    0,   94,  164,  163,  101,  162,  161,
      108,  158,  157,  155,    0,  110,  154,    0,  112,  151,
      114,  150,  149,  148,  147,  144,  143,  142,  116,  141,
      118,  140,  120,  137,  136,  135,  134,  133,  130,  129,

      122,  127,  124,  126,  131,  107,  106,  105,  104,  103,
      100,  138,   99,  145,   98,  152,   97,    0,  159,   96,
       91,   89,   88,   87,   84,   81,   81,   80,   77,   75,
      166,   75,    0,  174,  181,   74,  183,   73,   70,   68,
      185,   67,   66,   53,  192,   52,   51,  199,   50,    0,
      201,   49,   43,   42,  203,   41,   40,   32,  205,   31,
       30,   29,  212,   28,   24,   23,   22,  232,  220,   28,
       27,    0
    } ;

static yyconst flex_int16_t yy_def[173] =
    {   0,
      169,  168,  168,  168,  168,  168,  170,  168,  171,  170,
      170,    5,  168,  170,   11,    8,  171,   10,  171,  171,
       10,   10,   11,   10,   20,   20,   10,   10,   21,   24,
       20,   26,   21,   27,   27,   24,   26,   26,   24,   27,
       21,   35,   31,   37,   21,   39,   39,   35,   37,   37,
       21,   39,   21,   47,   31,   49,   51,   21,   51,   51,
       47,   31,   49,   58,   47,   51,   60,   58,   60,   62,
       31,   62,   21,   65,   68,   65,   60,   71,   31,   62,
       65,   65,   21,   76,   31,   79,   21,   81,   81,   76,
       79,   79,   76,   81,   21,   89,   31,   91,   21,   93,

       93,   89,   91,   91,   21,   93,   21,  101,   31,  103,
      105,   21,  105,   21,  101,   31,  103,  112,  112,  105,
      114,  114,  116,  116,  119,  172,  119,  114,  116,  172,
      172,  119,  131,  131,  131,  134,  134,  134,  135,  137,
      137,  137,  135,  141,  135,  141,  145,  135,  145,  148,
      135,  145,  135,  151,  151,  151,  135,  155,  155,  155,
      135,  159,  135,  159,  163,  163,  163,    0,  168,  168,
      168,  168
    } ;

static yyconst flex_int16_t yy_nxt[242] =
    {   0,
      130,    5,    6,    7,    8,    6,    9,    7,    7,    7,
       10,   11,   12,   13,   14,   16,   13,   17,   14,   14,
       14,   18,   15,   21,   22,   15,   23,   19,   14,  130,
      167,  130,   24,   15,   25,  130,  164,  163,  130,  160,
       26,   20,   14,   27,   29,   30,   19,  159,  130,  156,
      155,   31,   32,   33,   34,   19,  130,  152,  130,  130,
      146,   37,   41,   42,   43,   44,   45,   46,   53,   54,
       55,   56,   57,  145,  130,  142,   58,  141,   59,   64,
      130,  138,   14,  131,   19,   65,   67,   14,  132,  131,
       68,   14,   69,   70,  129,   19,  128,   71,   14,   72,

       73,   74,   75,   14,   19,   14,  120,   14,   76,   78,
      117,  116,  115,  114,   14,   79,   83,   84,   85,   86,
       87,   88,   95,   96,   97,   98,   99,  100,  107,  108,
      109,  110,  111,   19,   14,  112,  106,  105,  113,  118,
      104,  103,  102,  101,   14,  119,  121,   19,   14,   94,
       93,   92,  122,  123,   91,   90,   89,   14,   19,  124,
      125,   14,   82,  126,   81,   80,  127,  133,   19,   77,
       14,   14,   19,  134,  131,  130,   14,   66,   14,   63,
      135,  136,  130,   62,   61,   60,   14,   19,  137,  139,
      140,  143,  144,  147,   14,   52,   51,  148,   50,  149,

      150,   49,   48,   47,   14,   19,  151,  153,  154,  157,
      158,  161,  162,  165,   14,   40,   39,   38,   36,  166,
        4,    4,   35,   14,   28,   20,   20,   15,   20,   15,
      168,    3,  168,  168,  168,  168,  168,  168,  168,  168,
      168
    } ;

static yyconst flex_int16_t yy_chk[242] =
    {   0,
      172,    1,    1,    2,    2,    2,    2,    2,    2,    2,
        2,    2,    5,    5,    8,    8,    8,    8,    8,    8,
        8,    8,    8,   10,   10,   10,   11,  171,  170,  167,
      166,  165,   11,   11,   20,  164,  162,  161,  160,  158,
       20,   20,   21,   21,   24,   24,   26,  157,  156,  154,
      153,   26,   26,   27,   27,   31,  152,  149,  147,  146,
      144,   31,   35,   35,   37,   37,   39,   39,   47,   47,
       49,   49,   51,  143,  142,  140,   51,  139,   51,   58,
      138,  136,  132,  130,  129,   58,   60,  128,  127,  126,
       60,  125,   60,   62,  124,  123,  122,   62,  121,   62,

       65,   65,   68,  120,  117,  115,  113,  111,   68,   71,
      110,  109,  108,  107,  106,   71,   76,   76,   79,   79,
       81,   81,   89,   89,   91,   91,   93,   93,  101,  101,
      103,  103,  105,  104,  102,  105,  100,   99,  105,  112,
       98,   97,   96,   95,   94,  112,  114,   92,   90,   88,
       87,   86,  114,  116,   85,   84,   83,   82,   80,  116,
      119,   77,   74,  119,   73,   72,  119,  131,   70,   69,
       67,   66,   63,  131,  131,  134,   61,   59,   57,   56,
      134,  134,  135,   55,   54,   53,   52,   50,  135,  137,
      137,  141,  141,  145,   48,   46,   45,  145,   44,  145,

      148,   43,   42,   41,   40,   38,  148,  151,  151,  155,
      155,  159,  159,  163,   36,   34,   33,   32,   30,  163,
      169,  169,   29,   28,   22,   19,   17,   14,    9,    7,
        3,  168,  168,  168,  168,  168,  168,  168,  168,  168,
      168
    } ;

static yy_state_type yy_last_accepting_state;
static char *yy_last_accepting_cpos;

extern int yyip_flex_debug;
int yyip_flex_debug = 0;

/* The intent behind this definition is that it'll catch
 * any uses of REJECT which flex missed.
 */
#define REJECT reject_used_but_not_detected
#define yymore() yymore_used_but_not_detected
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
char *yyiptext;
#line 1 "./IPFilterScanner.l"
#line 2 "./IPFilterScanner.l"
//
// This file is part of the aMule Project.
//
// Copyright (c) 2009-2011 aMule Team ( admin@amule.org / http://www.amule.org )
// Copyright (c) 2009-2011 Stu Redman ( sturedman@amule.org )
//
// Any parts of this program derived from the xMule, lMule or eMule project,
// or contributed by third-party developers are copyrighted by their
// respective authors.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
//

//
// Read IP filters
//
// These have a silly "grammar". For example:
// 1.2.3.4-1.2.3.5,100,Duh:2.3.4.5-2.3.4.6
// Now - which format is it, and what range should it take?
//
// So just use the lexer to read the file and assure the line format.
// The actual IP reading is done with the ScanIP() function.
//

#include <stdio.h>
#include "Types.h"
#include "Logger.h"
#define IPFS_EXTERN
#include "IPFilterScanner.h"
#include <common/Format.h>
#include <common/StringFunctions.h>

#ifdef _MSC_VER
#define isatty(DUMMY) 0
#define YY_NO_UNISTD_H
#pragma warning(disable:4003)
#endif

#define YY_NEVER_INTERACTIVE 1

// When we get here the IP has been lexed nicely,
// so we can blaze through without any checks.
// The total lexing time is more than twice as fast
// with this than when using sscanf.
static bool ScanIP(const char * buf, uint32 & ip)
{
        while (*buf < '0') {
                buf++;  // skip whitespace
        }
        ip = 0;
        int a = 0;
        for (int i = 0; i < 4; buf++) {
                if (*buf < '0' || *buf > '9') {
                        // finished a number, check it and add to the ip
                        if (a > 255) {
                                return false;
                        }
                        ip = (ip << 8) | a;
                        a = 0;
                        i++;
                } else {
                        // build number
                        a = a * 10 + *buf - '0';
                }
        }
        return true;
}

static bool ScanInt(const char * buf, uint32 & a)
{
        while (*buf < '0') {
                buf++;  // skip whitespace
        }
        a = 0;
        while (*buf >= '0' && *buf <= '9') {
                a = a * 10 + *buf - '0';
                if (a > 255) {
                        return false;
                }
                buf++;
        }
        return true;
}

#line 674 "IPFilterScanner.cpp"

#define INITIAL 0

#ifndef YY_NO_UNISTD_H
/* Special case for "unistd.h", since it is non-ANSI. We include it way
 * down here because we want the user's section 1 to have been scanned first.
 * The user has a chance to override it with an option.
 */
#include <unistd.h>
#endif

#ifndef YY_EXTRA_TYPE
#define YY_EXTRA_TYPE void *
#endif

static int yy_init_globals (void );

/* Accessor methods to globals.
   These are made visible to non-reentrant scanners for convenience. */

int yyiplex_destroy (void );

int yyipget_debug (void );

void yyipset_debug (int debug_flag  );

YY_EXTRA_TYPE yyipget_extra (void );

void yyipset_extra (YY_EXTRA_TYPE user_defined  );

FILE *yyipget_in (void );

void yyipset_in  (FILE * in_str  );

FILE *yyipget_out (void );

void yyipset_out  (FILE * out_str  );

int yyipget_leng (void );

char *yyipget_text (void );

int yyipget_lineno (void );

void yyipset_lineno (int line_number  );

/* Macros after this point can all be overridden by user definitions in
 * section 1.
 */

#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yyipwrap (void );
#else
extern int yyipwrap (void );
#endif
#endif

    static void yyunput (int c,char *buf_ptr  );

#ifndef yytext_ptr
static void yy_flex_strncpy (char *,yyconst char *,int );
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * );
#endif

#ifndef YY_NO_INPUT

#ifdef __cplusplus
static int yyinput (void );
#else
static int input (void );
#endif

#endif

/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif

/* Copy whatever the last rule matched to the standard output. */
#ifndef ECHO
/* This used to be an fputs(), but since the string might contain NUL's,
 * we now use fwrite().
 */
#define ECHO fwrite( yyiptext, yyipleng, 1, yyipout )
#endif

/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
 * is returned in "result".
 */
#ifndef YY_INPUT
#define YY_INPUT(buf,result,max_size) \
        if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
                { \
                int c = '*'; \
                int n; \
                for ( n = 0; n < max_size && \
                             (c = getc( yyipin )) != EOF && c != '\n'; ++n ) \
                        buf[n] = (char) c; \
                if ( c == '\n' ) \
                        buf[n++] = (char) c; \
                if ( c == EOF && ferror( yyipin ) ) \
                        YY_FATAL_ERROR( "input in flex scanner failed" ); \
                result = n; \
                } \
        else \
                { \
                errno=0; \
                while ( (result = fread(buf, 1, max_size, yyipin))==0 && ferror(yyipin)) \
                        { \
                        if( errno != EINTR) \
                                { \
                                YY_FATAL_ERROR( "input in flex scanner failed" ); \
                                break; \
                                } \
                        errno=0; \
                        clearerr(yyipin); \
                        } \
                }\
\

#endif

/* No semi-colon after return; correct usage is to write "yyterminate();" -
 * we don't want an extra ';' after the "return" because that will cause
 * some compilers to complain about unreachable statements.
 */
#ifndef yyterminate
#define yyterminate() return YY_NULL
#endif

/* Number of entries by which start-condition stack grows. */
#ifndef YY_START_STACK_INCR
#define YY_START_STACK_INCR 25
#endif

/* Report a fatal error. */
#ifndef YY_FATAL_ERROR
#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
#endif

/* end tables serialization structures and prototypes */

/* Default declaration of generated scanner - a define so the user can
 * easily add parameters.
 */
#ifndef YY_DECL
#define YY_DECL_IS_OURS 1

extern int yyiplex (void);

#define YY_DECL int yyiplex (void)
#endif /* !YY_DECL */

/* Code executed at the beginning of each rule, after yyiptext and yyipleng
 * have been set up.
 */
#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif

/* Code executed at the end of each rule. */
#ifndef YY_BREAK
#define YY_BREAK break;
#endif

#define YY_RULE_SETUP \
        if ( yyipleng > 0 ) \
                YY_CURRENT_BUFFER_LVALUE->yy_at_bol = \
                                (yyiptext[yyipleng - 1] == '\n'); \
        YY_USER_ACTION

/** The main scanner function which does all the work.
 */
YY_DECL
{
        register yy_state_type yy_current_state;
        register char *yy_cp, *yy_bp;
        register int yy_act;

#line 106 "./IPFilterScanner.l"


#line 862 "IPFilterScanner.cpp"

        if ( !(yy_init) )
                {
                (yy_init) = 1;

#ifdef YY_USER_INIT
                YY_USER_INIT;
#endif

                if ( ! (yy_start) )
                        (yy_start) = 1; /* first start state */

                if ( ! yyipin )
                        yyipin = stdin;

                if ( ! yyipout )
                        yyipout = stdout;

                if ( ! YY_CURRENT_BUFFER ) {
                        yyipensure_buffer_stack ();
                        YY_CURRENT_BUFFER_LVALUE =
                                yyip_create_buffer(yyipin,YY_BUF_SIZE );
                }

                yyip_load_buffer_state( );
                }

        while ( 1 )             /* loops until end-of-file is reached */
                {
                yy_cp = (yy_c_buf_p);

                /* Support of yyiptext. */
                *yy_cp = (yy_hold_char);

                /* yy_bp points to the position in yy_ch_buf of the start of
                 * the current run.
                 */
                yy_bp = yy_cp;

                yy_current_state = (yy_start);
                yy_current_state += YY_AT_BOL();
yy_match:
                do
                        {
                        register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
                        if ( yy_accept[yy_current_state] )
                                {
                                (yy_last_accepting_state) = yy_current_state;
                                (yy_last_accepting_cpos) = yy_cp;
                                }
                        while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
                                {
                                yy_current_state = (int) yy_def[yy_current_state];
                                if ( yy_current_state >= 169 )
                                        yy_c = yy_meta[(unsigned int) yy_c];
                                }
                        yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
                        ++yy_cp;
                        }
                while ( yy_base[yy_current_state] != 232 );

yy_find_action:
                yy_act = yy_accept[yy_current_state];
                if ( yy_act == 0 )
                        { /* have to back up */
                        yy_cp = (yy_last_accepting_cpos);
                        yy_current_state = (yy_last_accepting_state);
                        yy_act = yy_accept[yy_current_state];
                        }

                YY_DO_BEFORE_ACTION;

do_action:      /* This label is used only to access EOF actions. */

                switch ( yy_act )
        { /* beginning of action switch */
                        case 0: /* must back up */
                        /* undo the effects of YY_DO_BEFORE_ACTION */
                        *yy_cp = (yy_hold_char);
                        yy_cp = (yy_last_accepting_cpos);
                        yy_current_state = (yy_last_accepting_state);
                        goto yy_find_action;

case 1:
YY_RULE_SETUP
#line 108 "./IPFilterScanner.l"
{
                /* PeerGuardian filter line
                   <IPStart> - <IPEnd> , <AccessLevel> , <Description>
                */
                char * ip1 = yyiptext;
                char * ip2 = strchr(ip1 + 7, '-') + 1;
                char * acc = strchr(ip2 + 7, ',') + 1;
                char * dsc = strchr(acc + 1, ',') + 1;
                if (!ScanIP(ip1, IPStart) || !ScanIP(ip2, IPEnd)
                        || !ScanInt(acc, IPLevel)) {
                        yyip_Bad++;
                } else {
                        IPDescription = dsc;
                        return 1;
                }
        }
        YY_BREAK
case 2:
YY_RULE_SETUP
#line 125 "./IPFilterScanner.l"
{
                /* Comment */
        }
        YY_BREAK
case 3:
YY_RULE_SETUP
#line 129 "./IPFilterScanner.l"
{
                /* AntiP2P filter line
                   <Description> : <IPStart> - <IPEnd>
                */
                char * ip1 = strrchr(yyiptext, ':');
                *ip1++ = 0;             // remove : and terminate comment
                char * ip2 = strchr(ip1 + 7, '-') + 1;
                if (!ScanIP(ip1, IPStart) || !ScanIP(ip2, IPEnd)) {
                        yyip_Bad++;
                } else {
                        IPLevel = 0;
                        IPDescription = yyiptext;
                        return 1;
                }
        }
        YY_BREAK
case 4:
/* rule 4 can match eol */
YY_RULE_SETUP
#line 145 "./IPFilterScanner.l"
{
                yyip_Line++;
        }
        YY_BREAK
case 5:
YY_RULE_SETUP
#line 149 "./IPFilterScanner.l"
{
                /* Bad line */
                yyip_Bad++;
                AddDebugLogLineN(logIPFilter, CFormat(wxT("error in line %d: %s")) % yyip_Line % wxString(char2unicode(yyiptext)));
        }
        YY_BREAK
case 6:
YY_RULE_SETUP
#line 155 "./IPFilterScanner.l"
ECHO;
        YY_BREAK
#line 1014 "IPFilterScanner.cpp"
case YY_STATE_EOF(INITIAL):
        yyterminate();

        case YY_END_OF_BUFFER:
                {
                /* Amount of text matched not including the EOB char. */
                int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;

                /* Undo the effects of YY_DO_BEFORE_ACTION. */
                *yy_cp = (yy_hold_char);
                YY_RESTORE_YY_MORE_OFFSET

                if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
                        {
                        /* We're scanning a new file or input source.  It's
                         * possible that this happened because the user
                         * just pointed yyipin at a new source and called
                         * yyiplex().  If so, then we have to assure
                         * consistency between YY_CURRENT_BUFFER and our
                         * globals.  Here is the right place to do so, because
                         * this is the first action (other than possibly a
                         * back-up) that will match for the new input source.
                         */
                        (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
                        YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyipin;
                        YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
                        }

                /* Note that here we test for yy_c_buf_p "<=" to the position
                 * of the first EOB in the buffer, since yy_c_buf_p will
                 * already have been incremented past the NUL character
                 * (since all states make transitions on EOB to the
                 * end-of-buffer state).  Contrast this with the test
                 * in input().
                 */
                if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
                        { /* This was really a NUL. */
                        yy_state_type yy_next_state;

                        (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;

                        yy_current_state = yy_get_previous_state(  );

                        /* Okay, we're now positioned to make the NUL
                         * transition.  We couldn't have
                         * yy_get_previous_state() go ahead and do it
                         * for us because it doesn't know how to deal
                         * with the possibility of jamming (and we don't
                         * want to build jamming into it because then it
                         * will run more slowly).
                         */

                        yy_next_state = yy_try_NUL_trans( yy_current_state );

                        yy_bp = (yytext_ptr) + YY_MORE_ADJ;

                        if ( yy_next_state )
                                {
                                /* Consume the NUL. */
                                yy_cp = ++(yy_c_buf_p);
                                yy_current_state = yy_next_state;
                                goto yy_match;
                                }

                        else
                                {
                                yy_cp = (yy_c_buf_p);
                                goto yy_find_action;
                                }
                        }

                else switch ( yy_get_next_buffer(  ) )
                        {
                        case EOB_ACT_END_OF_FILE:
                                {
                                (yy_did_buffer_switch_on_eof) = 0;

                                if ( yyipwrap( ) )
                                        {
                                        /* Note: because we've taken care in
                                         * yy_get_next_buffer() to have set up
                                         * yyiptext, we can now set up
                                         * yy_c_buf_p so that if some total
                                         * hoser (like flex itself) wants to
                                         * call the scanner after we return the
                                         * YY_NULL, it'll still work - another
                                         * YY_NULL will get returned.
                                         */
                                        (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;

                                        yy_act = YY_STATE_EOF(YY_START);
                                        goto do_action;
                                        }

                                else
                                        {
                                        if ( ! (yy_did_buffer_switch_on_eof) )
                                                YY_NEW_FILE;
                                        }
                                break;
                                }

                        case EOB_ACT_CONTINUE_SCAN:
                                (yy_c_buf_p) =
                                        (yytext_ptr) + yy_amount_of_matched_text;

                                yy_current_state = yy_get_previous_state(  );

                                yy_cp = (yy_c_buf_p);
                                yy_bp = (yytext_ptr) + YY_MORE_ADJ;
                                goto yy_match;

                        case EOB_ACT_LAST_MATCH:
                                (yy_c_buf_p) =
                                &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];

                                yy_current_state = yy_get_previous_state(  );

                                yy_cp = (yy_c_buf_p);
                                yy_bp = (yytext_ptr) + YY_MORE_ADJ;
                                goto yy_find_action;
                        }
                break;
                }

        default:
                YY_FATAL_ERROR(
                        "fatal flex scanner internal error--no action found" );
        } /* end of action switch */
                } /* end of scanning one token */
} /* end of yyiplex */

/* yy_get_next_buffer - try to read in a new buffer
 *
 * Returns a code representing an action:
 *      EOB_ACT_LAST_MATCH -
 *      EOB_ACT_CONTINUE_SCAN - continue scanning from current position
 *      EOB_ACT_END_OF_FILE - end of file
 */
static int yy_get_next_buffer (void)
{
        register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
        register char *source = (yytext_ptr);
        register int number_to_move, i;
        int ret_val;

        if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
                YY_FATAL_ERROR(
                "fatal flex scanner internal error--end of buffer missed" );

        if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
                { /* Don't try to fill the buffer, so this is an EOF. */
                if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
                        {
                        /* We matched a single character, the EOB, so
                         * treat this as a final EOF.
                         */
                        return EOB_ACT_END_OF_FILE;
                        }

                else
                        {
                        /* We matched some text prior to the EOB, first
                         * process it.
                         */
                        return EOB_ACT_LAST_MATCH;
                        }
                }

        /* Try to read more data. */

        /* First move last chars to start of buffer. */
        number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;

        for ( i = 0; i < number_to_move; ++i )
                *(dest++) = *(source++);

        if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
                /* don't do the read, it's not guaranteed to return an EOF,
                 * just force an EOF
                 */
                YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;

        else
                {
                        int num_to_read =
                        YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;

                while ( num_to_read <= 0 )
                        { /* Not enough room in the buffer - grow it. */

                        /* just a shorter name for the current buffer */
                        YY_BUFFER_STATE b = YY_CURRENT_BUFFER;

                        int yy_c_buf_p_offset =
                                (int) ((yy_c_buf_p) - b->yy_ch_buf);

                        if ( b->yy_is_our_buffer )
                                {
                                int new_size = b->yy_buf_size * 2;

                                if ( new_size <= 0 )
                                        b->yy_buf_size += b->yy_buf_size / 8;
                                else
                                        b->yy_buf_size *= 2;

                                b->yy_ch_buf = (char *)
                                        /* Include room in for 2 EOB chars. */
                                        yyiprealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2  );
                                }
                        else
                                /* Can't grow it, we don't own it. */
                                b->yy_ch_buf = 0;

                        if ( ! b->yy_ch_buf )
                                YY_FATAL_ERROR(
                                "fatal error - scanner input buffer overflow" );

                        (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];

                        num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
                                                number_to_move - 1;

                        }

                if ( num_to_read > YY_READ_BUF_SIZE )
                        num_to_read = YY_READ_BUF_SIZE;

                /* Read in more data. */
                YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
                        (yy_n_chars), (size_t) num_to_read );

                YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
                }

        if ( (yy_n_chars) == 0 )
                {
                if ( number_to_move == YY_MORE_ADJ )
                        {
                        ret_val = EOB_ACT_END_OF_FILE;
                        yyiprestart(yyipin  );
                        }

                else
                        {
                        ret_val = EOB_ACT_LAST_MATCH;
                        YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
                                YY_BUFFER_EOF_PENDING;
                        }
                }

        else
                ret_val = EOB_ACT_CONTINUE_SCAN;

        if ((yy_size_t) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
                /* Extend the array by 50%, plus the number we really need. */
                yy_size_t new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
                YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyiprealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size  );
                if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
                        YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
        }

        (yy_n_chars) += number_to_move;
        YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
        YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;

        (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];

        return ret_val;
}

/* yy_get_previous_state - get the state just before the EOB char was reached */

    static yy_state_type yy_get_previous_state (void)
{
        register yy_state_type yy_current_state;
        register char *yy_cp;

        yy_current_state = (yy_start);
        yy_current_state += YY_AT_BOL();

        for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
                {
                register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
                if ( yy_accept[yy_current_state] )
                        {
                        (yy_last_accepting_state) = yy_current_state;
                        (yy_last_accepting_cpos) = yy_cp;
                        }
                while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
                        {
                        yy_current_state = (int) yy_def[yy_current_state];
                        if ( yy_current_state >= 169 )
                                yy_c = yy_meta[(unsigned int) yy_c];
                        }
                yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
                }

        return yy_current_state;
}

/* yy_try_NUL_trans - try to make a transition on the NUL character
 *
 * synopsis
 *      next_state = yy_try_NUL_trans( current_state );
 */
    static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state )
{
        register int yy_is_jam;
        register char *yy_cp = (yy_c_buf_p);

        register YY_CHAR yy_c = 1;
        if ( yy_accept[yy_current_state] )
                {
                (yy_last_accepting_state) = yy_current_state;
                (yy_last_accepting_cpos) = yy_cp;
                }
        while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
                {
                yy_current_state = (int) yy_def[yy_current_state];
                if ( yy_current_state >= 169 )
                        yy_c = yy_meta[(unsigned int) yy_c];
                }
        yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
        yy_is_jam = (yy_current_state == 168);

        return yy_is_jam ? 0 : yy_current_state;
}

    static void yyunput (int c, register char * yy_bp )
{
        register char *yy_cp;

    yy_cp = (yy_c_buf_p);

        /* undo effects of setting up yyiptext */
        *yy_cp = (yy_hold_char);

        if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
                { /* need to shift things up to make room */
                /* +2 for EOB chars. */
                register int number_to_move = (yy_n_chars) + 2;
                register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
                                        YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
                register char *source =
                                &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move];

                while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
                        *--dest = *--source;

                yy_cp += (int) (dest - source);
                yy_bp += (int) (dest - source);
                YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
                        (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_buf_size;

                if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
                        YY_FATAL_ERROR( "flex scanner push-back overflow" );
                }

        *--yy_cp = (char) c;

        (yytext_ptr) = yy_bp;
        (yy_hold_char) = *yy_cp;
        (yy_c_buf_p) = yy_cp;
}

#ifndef YY_NO_INPUT
#ifdef __cplusplus
    static int yyinput (void)
#else
    static int input  (void)
#endif

{
        int c;

        *(yy_c_buf_p) = (yy_hold_char);

        if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
                {
                /* yy_c_buf_p now points to the character we want to return.
                 * If this occurs *before* the EOB characters, then it's a
                 * valid NUL; if not, then we've hit the end of the buffer.
                 */
                if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
                        /* This was really a NUL. */
                        *(yy_c_buf_p) = '\0';

                else
                        { /* need more input */
                        int offset = (yy_c_buf_p) - (yytext_ptr);
                        ++(yy_c_buf_p);

                        switch ( yy_get_next_buffer(  ) )
                                {
                                case EOB_ACT_LAST_MATCH:
                                        /* This happens because yy_g_n_b()
                                         * sees that we've accumulated a
                                         * token and flags that we need to
                                         * try matching the token before
                                         * proceeding.  But for input(),
                                         * there's no matching to consider.
                                         * So convert the EOB_ACT_LAST_MATCH
                                         * to EOB_ACT_END_OF_FILE.
                                         */

                                        /* Reset buffer status. */
                                        yyiprestart(yyipin );

                                        /*FALLTHROUGH*/

                                case EOB_ACT_END_OF_FILE:
                                        {
                                        if ( yyipwrap( ) )
                                                return EOF;

                                        if ( ! (yy_did_buffer_switch_on_eof) )
                                                YY_NEW_FILE;
#ifdef __cplusplus
                                        return yyinput();
#else
                                        return input();
#endif
                                        }

                                case EOB_ACT_CONTINUE_SCAN:
                                        (yy_c_buf_p) = (yytext_ptr) + offset;
                                        break;
                                }
                        }
                }

        c = *(unsigned char *) (yy_c_buf_p);    /* cast for 8-bit char's */
        *(yy_c_buf_p) = '\0';   /* preserve yyiptext */
        (yy_hold_char) = *++(yy_c_buf_p);

        YY_CURRENT_BUFFER_LVALUE->yy_at_bol = (c == '\n');

        return c;
}
#endif  /* ifndef YY_NO_INPUT */

/** Immediately switch to a different input stream.
 * @param input_file A readable stream.
 *
 * @note This function does not reset the start condition to @c INITIAL .
 */
    void yyiprestart  (FILE * input_file )
{

        if ( ! YY_CURRENT_BUFFER ){
        yyipensure_buffer_stack ();
                YY_CURRENT_BUFFER_LVALUE =
            yyip_create_buffer(yyipin,YY_BUF_SIZE );
        }

        yyip_init_buffer(YY_CURRENT_BUFFER,input_file );
        yyip_load_buffer_state( );
}

/** Switch to a different input buffer.
 * @param new_buffer The new input buffer.
 *
 */
    void yyip_switch_to_buffer  (YY_BUFFER_STATE  new_buffer )
{

        /* TODO. We should be able to replace this entire function body
         * with
         *              yyippop_buffer_state();
         *              yyippush_buffer_state(new_buffer);
     */
        yyipensure_buffer_stack ();
        if ( YY_CURRENT_BUFFER == new_buffer )
                return;

        if ( YY_CURRENT_BUFFER )
                {
                /* Flush out information for old buffer. */
                *(yy_c_buf_p) = (yy_hold_char);
                YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
                YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
                }

        YY_CURRENT_BUFFER_LVALUE = new_buffer;
        yyip_load_buffer_state( );

        /* We don't actually know whether we did this switch during
         * EOF (yyipwrap()) processing, but the only time this flag
         * is looked at is after yyipwrap() is called, so it's safe
         * to go ahead and always set it.
         */
        (yy_did_buffer_switch_on_eof) = 1;
}

static void yyip_load_buffer_state  (void)
{
        (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
        (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
        yyipin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
        (yy_hold_char) = *(yy_c_buf_p);
}

/** Allocate and initialize an input buffer state.
 * @param file A readable stream.
 * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
 *
 * @return the allocated buffer state.
 */
    YY_BUFFER_STATE yyip_create_buffer  (FILE * file, int  size )
{
        YY_BUFFER_STATE b;

        b = (YY_BUFFER_STATE) yyipalloc(sizeof( struct yy_buffer_state )  );
        if ( ! b )
                YY_FATAL_ERROR( "out of dynamic memory in yyip_create_buffer()" );

        b->yy_buf_size = size;

        /* yy_ch_buf has to be 2 characters longer than the size given because
         * we need to put in 2 end-of-buffer characters.
         */
        b->yy_ch_buf = (char *) yyipalloc(b->yy_buf_size + 2  );
        if ( ! b->yy_ch_buf )
                YY_FATAL_ERROR( "out of dynamic memory in yyip_create_buffer()" );

        b->yy_is_our_buffer = 1;

        yyip_init_buffer(b,file );

        return b;
}

/** Destroy the buffer.
 * @param b a buffer created with yyip_create_buffer()
 *
 */
    void yyip_delete_buffer (YY_BUFFER_STATE  b )
{

        if ( ! b )
                return;

        if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
                YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;

        if ( b->yy_is_our_buffer )
                yyipfree((void *) b->yy_ch_buf  );

        yyipfree((void *) b  );
}

#ifndef __cplusplus
extern int isatty (int );
#endif /* __cplusplus */

/* Initializes or reinitializes a buffer.
 * This function is sometimes called more than once on the same buffer,
 * such as during a yyiprestart() or at EOF.
 */
    static void yyip_init_buffer  (YY_BUFFER_STATE  b, FILE * file )

{
        int oerrno = errno;

        yyip_flush_buffer(b );

        b->yy_input_file = file;
        b->yy_fill_buffer = 1;

    /* If b is the current buffer, then yyip_init_buffer was _probably_
     * called from yyiprestart() or through yy_get_next_buffer.
     * In that case, we don't want to reset the lineno or column.
     */
    if (b != YY_CURRENT_BUFFER){
        b->yy_bs_lineno = 1;
        b->yy_bs_column = 0;
    }

        b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;

        errno = oerrno;
}

/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
 * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
 *
 */
    void yyip_flush_buffer (YY_BUFFER_STATE  b )
{
        if ( ! b )
                return;

        b->yy_n_chars = 0;

        /* We always need two end-of-buffer characters.  The first causes
         * a transition to the end-of-buffer state.  The second causes
         * a jam in that state.
         */
        b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
        b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;

        b->yy_buf_pos = &b->yy_ch_buf[0];

        b->yy_at_bol = 1;
        b->yy_buffer_status = YY_BUFFER_NEW;

        if ( b == YY_CURRENT_BUFFER )
                yyip_load_buffer_state( );
}

/** Pushes the new state onto the stack. The new state becomes
 *  the current state. This function will allocate the stack
 *  if necessary.
 *  @param new_buffer The new state.
 *
 */
void yyippush_buffer_state (YY_BUFFER_STATE new_buffer )
{
        if (new_buffer == NULL)
                return;

        yyipensure_buffer_stack();

        /* This block is copied from yyip_switch_to_buffer. */
        if ( YY_CURRENT_BUFFER )
                {
                /* Flush out information for old buffer. */
                *(yy_c_buf_p) = (yy_hold_char);
                YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
                YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
                }

        /* Only push if top exists. Otherwise, replace top. */
        if (YY_CURRENT_BUFFER)
                (yy_buffer_stack_top)++;
        YY_CURRENT_BUFFER_LVALUE = new_buffer;

        /* copied from yyip_switch_to_buffer. */
        yyip_load_buffer_state( );
        (yy_did_buffer_switch_on_eof) = 1;
}

/** Removes and deletes the top of the stack, if present.
 *  The next element becomes the new top.
 *
 */
void yyippop_buffer_state (void)
{
        if (!YY_CURRENT_BUFFER)
                return;

        yyip_delete_buffer(YY_CURRENT_BUFFER );
        YY_CURRENT_BUFFER_LVALUE = NULL;
        if ((yy_buffer_stack_top) > 0)
                --(yy_buffer_stack_top);

        if (YY_CURRENT_BUFFER) {
                yyip_load_buffer_state( );
                (yy_did_buffer_switch_on_eof) = 1;
        }
}

/* Allocates the stack if it does not exist.
 *  Guarantees space for at least one push.
 */
static void yyipensure_buffer_stack (void)
{
        int num_to_alloc;

        if (!(yy_buffer_stack)) {

                /* First allocation is just for 2 elements, since we don't know if this
                 * scanner will even need a stack. We use 2 instead of 1 to avoid an
                 * immediate realloc on the next call.
         */
                num_to_alloc = 1;
                (yy_buffer_stack) = (struct yy_buffer_state**)yyipalloc
                                                                (num_to_alloc * sizeof(struct yy_buffer_state*)
                                                                );
                if ( ! (yy_buffer_stack) )
                        YY_FATAL_ERROR( "out of dynamic memory in yyipensure_buffer_stack()" );

                memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));

                (yy_buffer_stack_max) = num_to_alloc;
                (yy_buffer_stack_top) = 0;
                return;
        }

        if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){

                /* Increase the buffer to prepare for a possible push. */
                int grow_size = 8 /* arbitrary grow size */;

                num_to_alloc = (yy_buffer_stack_max) + grow_size;
                (yy_buffer_stack) = (struct yy_buffer_state**)yyiprealloc
                                                                ((yy_buffer_stack),
                                                                num_to_alloc * sizeof(struct yy_buffer_state*)
                                                                );
                if ( ! (yy_buffer_stack) )
                        YY_FATAL_ERROR( "out of dynamic memory in yyipensure_buffer_stack()" );

                /* zero only the new slots.*/
                memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
                (yy_buffer_stack_max) = num_to_alloc;
        }
}

/** Setup the input buffer state to scan directly from a user-specified character buffer.
 * @param base the character buffer
 * @param size the size in bytes of the character buffer
 *
 * @return the newly allocated buffer state object.
 */
YY_BUFFER_STATE yyip_scan_buffer  (char * base, yy_size_t  size )
{
        YY_BUFFER_STATE b;

        if ( size < 2 ||
             base[size-2] != YY_END_OF_BUFFER_CHAR ||
             base[size-1] != YY_END_OF_BUFFER_CHAR )
                /* They forgot to leave room for the EOB's. */
                return 0;

        b = (YY_BUFFER_STATE) yyipalloc(sizeof( struct yy_buffer_state )  );
        if ( ! b )
                YY_FATAL_ERROR( "out of dynamic memory in yyip_scan_buffer()" );

        b->yy_buf_size = size - 2;      /* "- 2" to take care of EOB's */
        b->yy_buf_pos = b->yy_ch_buf = base;
        b->yy_is_our_buffer = 0;
        b->yy_input_file = 0;
        b->yy_n_chars = b->yy_buf_size;
        b->yy_is_interactive = 0;
        b->yy_at_bol = 1;
        b->yy_fill_buffer = 0;
        b->yy_buffer_status = YY_BUFFER_NEW;

        yyip_switch_to_buffer(b  );

        return b;
}

/** Setup the input buffer state to scan a string. The next call to yyiplex() will
 * scan from a @e copy of @a str.
 * @param yystr a NUL-terminated string to scan
 *
 * @return the newly allocated buffer state object.
 * @note If you want to scan bytes that may contain NUL values, then use
 *       yyip_scan_bytes() instead.
 */
YY_BUFFER_STATE yyip_scan_string (yyconst char * yystr )
{

        return yyip_scan_bytes(yystr,strlen(yystr) );
}

/** Setup the input buffer state to scan the given bytes. The next call to yyiplex() will
 * scan from a @e copy of @a bytes.
 * @param bytes the byte buffer to scan
 * @param len the number of bytes in the buffer pointed to by @a bytes.
 *
 * @return the newly allocated buffer state object.
 */
YY_BUFFER_STATE yyip_scan_bytes  (yyconst char * yybytes, int  _yybytes_len )
{
        YY_BUFFER_STATE b;
        char *buf;
        yy_size_t n;
        int i;

        /* Get memory for full buffer, including space for trailing EOB's. */
        n = _yybytes_len + 2;
        buf = (char *) yyipalloc(n  );
        if ( ! buf )
                YY_FATAL_ERROR( "out of dynamic memory in yyip_scan_bytes()" );

        for ( i = 0; i < _yybytes_len; ++i )
                buf[i] = yybytes[i];

        buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;

        b = yyip_scan_buffer(buf,n );
        if ( ! b )
                YY_FATAL_ERROR( "bad buffer in yyip_scan_bytes()" );

        /* It's okay to grow etc. this buffer, and we should throw it
         * away when we're done.
         */
        b->yy_is_our_buffer = 1;

        return b;
}

#ifndef YY_EXIT_FAILURE
#define YY_EXIT_FAILURE 2
#endif

static void yy_fatal_error (yyconst char* msg )
{
        (void) fprintf( stderr, "%s\n", msg );
        exit( YY_EXIT_FAILURE );
}

/* Redefine yyless() so it works in section 3 code. */

#undef yyless
#define yyless(n) \
        do \
                { \
                /* Undo effects of setting up yyiptext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
                yyiptext[yyipleng] = (yy_hold_char); \
                (yy_c_buf_p) = yyiptext + yyless_macro_arg; \
                (yy_hold_char) = *(yy_c_buf_p); \
                *(yy_c_buf_p) = '\0'; \
                yyipleng = yyless_macro_arg; \
                } \
        while ( 0 )

/* Accessor  methods (get/set functions) to struct members. */

/** Get the current line number.
 *
 */
int yyipget_lineno  (void)
{

    return yyiplineno;
}

/** Get the input stream.
 *
 */
FILE *yyipget_in  (void)
{
        return yyipin;
}

/** Get the output stream.
 *
 */
FILE *yyipget_out  (void)
{
        return yyipout;
}

/** Get the length of the current token.
 *
 */
int yyipget_leng  (void)
{
        return yyipleng;
}

/** Get the current token.
 *
 */

char *yyipget_text  (void)
{
        return yyiptext;
}

/** Set the current line number.
 * @param line_number
 *
 */
void yyipset_lineno (int  line_number )
{

    yyiplineno = line_number;
}

/** Set the input stream. This does not discard the current
 * input buffer.
 * @param in_str A readable stream.
 *
 * @see yyip_switch_to_buffer
 */
void yyipset_in (FILE *  in_str )
{
        yyipin = in_str ;
}

void yyipset_out (FILE *  out_str )
{
        yyipout = out_str ;
}

int yyipget_debug  (void)
{
        return yyip_flex_debug;
}

void yyipset_debug (int  bdebug )
{
        yyip_flex_debug = bdebug ;
}

static int yy_init_globals (void)
{
        /* Initialization is the same as for the non-reentrant scanner.
     * This function is called from yyiplex_destroy(), so don't allocate here.
     */

    (yy_buffer_stack) = 0;
    (yy_buffer_stack_top) = 0;
    (yy_buffer_stack_max) = 0;
    (yy_c_buf_p) = (char *) 0;
    (yy_init) = 0;
    (yy_start) = 0;

/* Defined in main.c */
#ifdef YY_STDINIT
    yyipin = stdin;
    yyipout = stdout;
#else
    yyipin = (FILE *) 0;
    yyipout = (FILE *) 0;
#endif

    /* For future reference: Set errno on error, since we are called by
     * yyiplex_init()
     */
    return 0;
}

/* yyiplex_destroy is for both reentrant and non-reentrant scanners. */
int yyiplex_destroy  (void)
{

    /* Pop the buffer stack, destroying each element. */
        while(YY_CURRENT_BUFFER){
                yyip_delete_buffer(YY_CURRENT_BUFFER  );
                YY_CURRENT_BUFFER_LVALUE = NULL;
                yyippop_buffer_state();
        }

        /* Destroy the stack itself. */
        yyipfree((yy_buffer_stack) );
        (yy_buffer_stack) = NULL;

    /* Reset the globals. This is important in a non-reentrant scanner so the next time
     * yyiplex() is called, initialization will occur. */
    yy_init_globals( );

    return 0;
}

/*
 * Internal utility routines.
 */

#ifndef yytext_ptr
static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
{
        register int i;
        for ( i = 0; i < n; ++i )
                s1[i] = s2[i];
}
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * s )
{
        register int n;
        for ( n = 0; s[n]; ++n )
                ;

        return n;
}
#endif

void *yyipalloc (yy_size_t  size )
{
        return (void *) malloc( size );
}

void *yyiprealloc  (void * ptr, yy_size_t  size )
{
        /* The cast to (char *) in the following accommodates both
         * implementations that use char* generic pointers, and those
         * that use void* generic pointers.  It works with the latter
         * because both ANSI C and C++ allow castless assignment from
         * any pointer type to void*, and deal with argument conversions
         * as though doing an assignment.
         */
        return (void *) realloc( (char *) ptr, size );
}

void yyipfree (void * ptr )
{
        free( (char *) ptr );   /* see yyiprealloc() for (char *) cast */
}

#define YYTABLES_NAME "yytables"

#line 155 "./IPFilterScanner.l"