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hex_lexer.c
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hex_lexer.c
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#line 1 "libyara_hex_lexer.c"
#line 3 "libyara_hex_lexer.c"
#define YY_INT_ALIGNED short int
/* A lexical scanner generated by flex */
#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 6
#define YY_FLEX_SUBMINOR_VERSION 4
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif
#ifdef yy_create_buffer
#define hex_yy_create_buffer_ALREADY_DEFINED
#else
#define yy_create_buffer hex_yy_create_buffer
#endif
#ifdef yy_delete_buffer
#define hex_yy_delete_buffer_ALREADY_DEFINED
#else
#define yy_delete_buffer hex_yy_delete_buffer
#endif
#ifdef yy_scan_buffer
#define hex_yy_scan_buffer_ALREADY_DEFINED
#else
#define yy_scan_buffer hex_yy_scan_buffer
#endif
#ifdef yy_scan_string
#define hex_yy_scan_string_ALREADY_DEFINED
#else
#define yy_scan_string hex_yy_scan_string
#endif
#ifdef yy_scan_bytes
#define hex_yy_scan_bytes_ALREADY_DEFINED
#else
#define yy_scan_bytes hex_yy_scan_bytes
#endif
#ifdef yy_init_buffer
#define hex_yy_init_buffer_ALREADY_DEFINED
#else
#define yy_init_buffer hex_yy_init_buffer
#endif
#ifdef yy_flush_buffer
#define hex_yy_flush_buffer_ALREADY_DEFINED
#else
#define yy_flush_buffer hex_yy_flush_buffer
#endif
#ifdef yy_load_buffer_state
#define hex_yy_load_buffer_state_ALREADY_DEFINED
#else
#define yy_load_buffer_state hex_yy_load_buffer_state
#endif
#ifdef yy_switch_to_buffer
#define hex_yy_switch_to_buffer_ALREADY_DEFINED
#else
#define yy_switch_to_buffer hex_yy_switch_to_buffer
#endif
#ifdef yypush_buffer_state
#define hex_yypush_buffer_state_ALREADY_DEFINED
#else
#define yypush_buffer_state hex_yypush_buffer_state
#endif
#ifdef yypop_buffer_state
#define hex_yypop_buffer_state_ALREADY_DEFINED
#else
#define yypop_buffer_state hex_yypop_buffer_state
#endif
#ifdef yyensure_buffer_stack
#define hex_yyensure_buffer_stack_ALREADY_DEFINED
#else
#define yyensure_buffer_stack hex_yyensure_buffer_stack
#endif
#ifdef yylex
#define hex_yylex_ALREADY_DEFINED
#else
#define yylex hex_yylex
#endif
#ifdef yyrestart
#define hex_yyrestart_ALREADY_DEFINED
#else
#define yyrestart hex_yyrestart
#endif
#ifdef yylex_init
#define hex_yylex_init_ALREADY_DEFINED
#else
#define yylex_init hex_yylex_init
#endif
#ifdef yylex_init_extra
#define hex_yylex_init_extra_ALREADY_DEFINED
#else
#define yylex_init_extra hex_yylex_init_extra
#endif
#ifdef yylex_destroy
#define hex_yylex_destroy_ALREADY_DEFINED
#else
#define yylex_destroy hex_yylex_destroy
#endif
#ifdef yyget_debug
#define hex_yyget_debug_ALREADY_DEFINED
#else
#define yyget_debug hex_yyget_debug
#endif
#ifdef yyset_debug
#define hex_yyset_debug_ALREADY_DEFINED
#else
#define yyset_debug hex_yyset_debug
#endif
#ifdef yyget_extra
#define hex_yyget_extra_ALREADY_DEFINED
#else
#define yyget_extra hex_yyget_extra
#endif
#ifdef yyset_extra
#define hex_yyset_extra_ALREADY_DEFINED
#else
#define yyset_extra hex_yyset_extra
#endif
#ifdef yyget_in
#define hex_yyget_in_ALREADY_DEFINED
#else
#define yyget_in hex_yyget_in
#endif
#ifdef yyset_in
#define hex_yyset_in_ALREADY_DEFINED
#else
#define yyset_in hex_yyset_in
#endif
#ifdef yyget_out
#define hex_yyget_out_ALREADY_DEFINED
#else
#define yyget_out hex_yyget_out
#endif
#ifdef yyset_out
#define hex_yyset_out_ALREADY_DEFINED
#else
#define yyset_out hex_yyset_out
#endif
#ifdef yyget_leng
#define hex_yyget_leng_ALREADY_DEFINED
#else
#define yyget_leng hex_yyget_leng
#endif
#ifdef yyget_text
#define hex_yyget_text_ALREADY_DEFINED
#else
#define yyget_text hex_yyget_text
#endif
#ifdef yyget_lineno
#define hex_yyget_lineno_ALREADY_DEFINED
#else
#define yyget_lineno hex_yyget_lineno
#endif
#ifdef yyset_lineno
#define hex_yyset_lineno_ALREADY_DEFINED
#else
#define yyset_lineno hex_yyset_lineno
#endif
#ifdef yyget_column
#define hex_yyget_column_ALREADY_DEFINED
#else
#define yyget_column hex_yyget_column
#endif
#ifdef yyset_column
#define hex_yyset_column_ALREADY_DEFINED
#else
#define yyset_column hex_yyset_column
#endif
#ifdef yywrap
#define hex_yywrap_ALREADY_DEFINED
#else
#define yywrap hex_yywrap
#endif
#ifdef yyget_lval
#define hex_yyget_lval_ALREADY_DEFINED
#else
#define yyget_lval hex_yyget_lval
#endif
#ifdef yyset_lval
#define hex_yyset_lval_ALREADY_DEFINED
#else
#define yyset_lval hex_yyset_lval
#endif
#ifdef yyalloc
#define hex_yyalloc_ALREADY_DEFINED
#else
#define yyalloc hex_yyalloc
#endif
#ifdef yyrealloc
#define hex_yyrealloc_ALREADY_DEFINED
#else
#define yyrealloc hex_yyrealloc
#endif
#ifdef yyfree
#define hex_yyfree_ALREADY_DEFINED
#else
#define yyfree hex_yyfree
#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;
/* 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
#ifndef SIZE_MAX
#define SIZE_MAX (~(size_t)0)
#endif
#endif /* ! C99 */
#endif /* ! FLEXINT_H */
/* begin standard C++ headers. */
/* TODO: this is always defined, so inline it */
#define yyconst const
#if defined(__GNUC__) && __GNUC__ >= 3
#define yynoreturn __attribute__((__noreturn__))
#else
#define yynoreturn
#endif
/* Returned upon end-of-file. */
#define YY_NULL 0
/* Promotes a possibly negative, possibly signed char to an
* integer in range [0..255] for use as an array index.
*/
#define YY_SC_TO_UI(c) ((YY_CHAR) (c))
/* An opaque pointer. */
#ifndef YY_TYPEDEF_YY_SCANNER_T
#define YY_TYPEDEF_YY_SCANNER_T
typedef void* yyscan_t;
#endif
/* For convenience, these vars (plus the bison vars far below)
are macros in the reentrant scanner. */
#define yyin yyg->yyin_r
#define yyout yyg->yyout_r
#define yyextra yyg->yyextra_r
#define yyleng yyg->yyleng_r
#define yytext yyg->yytext_r
#define yylineno (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno)
#define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)
#define yy_flex_debug yyg->yy_flex_debug_r
/* 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 yyg->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 ((yyg->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 yyrestart( yyin , yyscanner )
#define YY_END_OF_BUFFER_CHAR 0
/* Size of default input buffer. */
#ifndef YY_BUF_SIZE
#ifdef __ia64__
/* On IA-64, the buffer size is 16k, not 8k.
* Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
* Ditto for the __ia64__ case accordingly.
*/
#define YY_BUF_SIZE 32768
#else
#define YY_BUF_SIZE 16384
#endif /* __ia64__ */
#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
#ifndef YY_TYPEDEF_YY_SIZE_T
#define YY_TYPEDEF_YY_SIZE_T
typedef size_t yy_size_t;
#endif
#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2
/* Note: We specifically omit the test for yy_rule_can_match_eol because it requires
* access to the local variable yy_act. Since yyless() is a macro, it would break
* existing scanners that call yyless() from OUTSIDE yylex.
* One obvious solution it to make yy_act a global. I tried that, and saw
* a 5% performance hit in a non-yylineno scanner, because yy_act is
* normally declared as a register variable-- so it is not worth it.
*/
#define YY_LESS_LINENO(n) \
do { \
int yyl;\
for ( yyl = n; yyl < yyleng; ++yyl )\
if ( yytext[yyl] == '\n' )\
--yylineno;\
}while(0)
#define YY_LINENO_REWIND_TO(dst) \
do {\
const char *p;\
for ( p = yy_cp-1; p >= (dst); --p)\
if ( *p == '\n' )\
--yylineno;\
}while(0)
/* Return all but the first "n" matched characters back to the input stream. */
#define yyless(n) \
do \
{ \
/* Undo effects of setting up yytext. */ \
int yyless_macro_arg = (n); \
YY_LESS_LINENO(yyless_macro_arg);\
*yy_cp = yyg->yy_hold_char; \
YY_RESTORE_YY_MORE_OFFSET \
yyg->yy_c_buf_p = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
YY_DO_BEFORE_ACTION; /* set up yytext again */ \
} \
while ( 0 )
#define unput(c) yyunput( c, yyg->yytext_ptr , yyscanner )
#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.
*/
int 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 yyrestart()), so that the user can continue scanning by
* just pointing yyin at a new input file.
*/
#define YY_BUFFER_EOF_PENDING 2
};
#endif /* !YY_STRUCT_YY_BUFFER_STATE */
/* 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 ( yyg->yy_buffer_stack \
? yyg->yy_buffer_stack[yyg->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 yyg->yy_buffer_stack[yyg->yy_buffer_stack_top]
void yyrestart ( FILE *input_file , yyscan_t yyscanner );
void yy_switch_to_buffer ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner );
YY_BUFFER_STATE yy_create_buffer ( FILE *file, int size , yyscan_t yyscanner );
void yy_delete_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner );
void yy_flush_buffer ( YY_BUFFER_STATE b , yyscan_t yyscanner );
void yypush_buffer_state ( YY_BUFFER_STATE new_buffer , yyscan_t yyscanner );
void yypop_buffer_state ( yyscan_t yyscanner );
static void yyensure_buffer_stack ( yyscan_t yyscanner );
static void yy_load_buffer_state ( yyscan_t yyscanner );
static void yy_init_buffer ( YY_BUFFER_STATE b, FILE *file , yyscan_t yyscanner );
#define YY_FLUSH_BUFFER yy_flush_buffer( YY_CURRENT_BUFFER , yyscanner)
YY_BUFFER_STATE yy_scan_buffer ( char *base, yy_size_t size , yyscan_t yyscanner );
YY_BUFFER_STATE yy_scan_string ( const char *yy_str , yyscan_t yyscanner );
YY_BUFFER_STATE yy_scan_bytes ( const char *bytes, int len , yyscan_t yyscanner );
void *yyalloc ( yy_size_t , yyscan_t yyscanner );
void *yyrealloc ( void *, yy_size_t , yyscan_t yyscanner );
void yyfree ( void * , yyscan_t yyscanner );
#define yy_new_buffer yy_create_buffer
#define yy_set_interactive(is_interactive) \
{ \
if ( ! YY_CURRENT_BUFFER ){ \
yyensure_buffer_stack (yyscanner); \
YY_CURRENT_BUFFER_LVALUE = \
yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); \
} \
YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
}
#define yy_set_bol(at_bol) \
{ \
if ( ! YY_CURRENT_BUFFER ){\
yyensure_buffer_stack (yyscanner); \
YY_CURRENT_BUFFER_LVALUE = \
yy_create_buffer( yyin, YY_BUF_SIZE , yyscanner); \
} \
YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
}
#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
/* Begin user sect3 */
#define hex_yywrap(yyscanner) (/*CONSTCOND*/1)
#define YY_SKIP_YYWRAP
typedef flex_uint8_t YY_CHAR;
typedef int yy_state_type;
#define yytext_ptr yytext_r
static yy_state_type yy_get_previous_state ( yyscan_t yyscanner );
static yy_state_type yy_try_NUL_trans ( yy_state_type current_state , yyscan_t yyscanner);
static int yy_get_next_buffer ( yyscan_t yyscanner );
static void yynoreturn yy_fatal_error ( const char* msg , yyscan_t yyscanner );
/* Done after the current pattern has been matched and before the
* corresponding action - sets up yytext.
*/
#define YY_DO_BEFORE_ACTION \
yyg->yytext_ptr = yy_bp; \
yyleng = (int) (yy_cp - yy_bp); \
yyg->yy_hold_char = *yy_cp; \
*yy_cp = '\0'; \
yyg->yy_c_buf_p = yy_cp;
#define YY_NUM_RULES 23
#define YY_END_OF_BUFFER 24
/* 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 const flex_int16_t yy_accept[40] =
{ 0,
0, 0, 0, 0, 0, 0, 24, 22, 20, 20,
21, 22, 8, 22, 10, 9, 13, 13, 19, 18,
18, 15, 16, 17, 11, 14, 1, 2, 4, 5,
0, 0, 12, 16, 14, 3, 6, 7, 0
} ;
static const YY_CHAR 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, 1, 1, 1, 1, 1, 4,
4, 5, 1, 1, 6, 1, 7, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 1, 1, 1,
1, 1, 9, 1, 10, 10, 10, 10, 10, 10,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
11, 1, 12, 1, 1, 1, 10, 10, 10, 10,
10, 10, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 4, 4, 4, 13, 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 const YY_CHAR yy_meta[14] =
{ 0,
1, 1, 2, 1, 1, 1, 1, 3, 4, 3,
1, 1, 1
} ;
static const flex_int16_t yy_base[48] =
{ 0,
0, 0, 28, 27, 12, 23, 30, 59, 59, 59,
59, 31, 19, 18, 59, 14, 59, 15, 59, 59,
59, 59, 13, 59, 59, 0, 59, 59, 59, 59,
10, 0, 59, 9, 0, 59, 59, 59, 59, 38,
42, 44, 46, 48, 52, 54, 13
} ;
static const flex_int16_t yy_def[48] =
{ 0,
39, 1, 40, 40, 41, 41, 39, 39, 39, 39,
39, 39, 42, 43, 39, 44, 39, 39, 39, 39,
39, 39, 39, 39, 39, 45, 39, 39, 39, 39,
46, 47, 39, 39, 45, 39, 39, 39, 0, 39,
39, 39, 39, 39, 39, 39, 39
} ;
static const flex_int16_t yy_nxt[73] =
{ 0,
8, 9, 10, 11, 8, 8, 12, 13, 14, 13,
15, 8, 16, 20, 21, 38, 34, 22, 37, 23,
34, 33, 32, 24, 20, 21, 30, 28, 22, 39,
23, 18, 18, 39, 24, 25, 39, 26, 17, 17,
17, 17, 19, 19, 19, 19, 27, 27, 29, 29,
31, 31, 35, 39, 35, 35, 36, 36, 7, 39,
39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
39, 39
} ;
static const flex_int16_t yy_chk[73] =
{ 0,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 5, 5, 47, 34, 5, 31, 5,
23, 18, 16, 5, 6, 6, 14, 13, 6, 7,
6, 4, 3, 0, 6, 12, 0, 12, 40, 40,
40, 40, 41, 41, 41, 41, 42, 42, 43, 43,
44, 44, 45, 0, 45, 45, 46, 46, 39, 39,
39, 39, 39, 39, 39, 39, 39, 39, 39, 39,
39, 39
} ;
/* Table of booleans, true if rule could match eol. */
static const flex_int32_t yy_rule_can_match_eol[24] =
{ 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0,
1, 0, 0, 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
#line 1 "libyara_hex_lexer.l"
/*
Copyright (c) 2013. The YARA Authors. All Rights Reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* Lexical analyzer for hex strings */
#line 33 "libyara_hex_lexer.l"
/* Disable warnings for unused functions in this file.
As we redefine YY_FATAL_ERROR macro to use our own function hex_yyfatal, the
yy_fatal_error function generated by Flex is not actually used, causing a
compiler warning. Flex doesn't offer any options to remove the yy_fatal_error
function. When they include something like %option noyy_fatal_error as they do
with noyywrap then we can remove this pragma.
*/
#ifdef __GNUC__
#pragma GCC diagnostic ignored "-Wunused-function"
#endif
#include <setjmp.h>
#include <yara_globals.h>
#include <yara_limits.h>
#include <yara_error.h>
#include <yara_mem.h>
#include <yara_re.h>
#include <yara_threading.h>
#include <yara_strutils.h>
#include <yara_hex_lexer.h>
#include "hex_grammar.h"
#ifdef _WIN32
#define snprintf _snprintf
#endif
#define ERROR_IF(x, error) \
if (x) \
{ \
RE_AST* re_ast = yyget_extra(yyscanner); \
re_ast->error_code = error; \
YYABORT; \
} \
#line 763 "libyara_hex_lexer.c"
#define YY_NO_UNISTD_H 1
#define YY_NO_INPUT 1
#line 767 "libyara_hex_lexer.c"
#define INITIAL 0
#define comment 1
#define range 2
#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
/* Holds the entire state of the reentrant scanner. */
struct yyguts_t
{
/* User-defined. Not touched by flex. */
YY_EXTRA_TYPE yyextra_r;
/* The rest are the same as the globals declared in the non-reentrant scanner. */
FILE *yyin_r, *yyout_r;
size_t yy_buffer_stack_top; /**< index of top of stack. */
size_t yy_buffer_stack_max; /**< capacity of stack. */
YY_BUFFER_STATE * yy_buffer_stack; /**< Stack as an array. */
char yy_hold_char;
int yy_n_chars;
int yyleng_r;
char *yy_c_buf_p;
int yy_init;
int yy_start;
int yy_did_buffer_switch_on_eof;
int yy_start_stack_ptr;
int yy_start_stack_depth;
int *yy_start_stack;
yy_state_type yy_last_accepting_state;
char* yy_last_accepting_cpos;
int yylineno_r;
int yy_flex_debug_r;
char *yytext_r;
int yy_more_flag;
int yy_more_len;
YYSTYPE * yylval_r;
}; /* end struct yyguts_t */
static int yy_init_globals ( yyscan_t yyscanner );
/* This must go here because YYSTYPE and YYLTYPE are included
* from bison output in section 1.*/
# define yylval yyg->yylval_r
int yylex_init (yyscan_t* scanner);
int yylex_init_extra ( YY_EXTRA_TYPE user_defined, yyscan_t* scanner);
/* Accessor methods to globals.
These are made visible to non-reentrant scanners for convenience. */
int yylex_destroy ( yyscan_t yyscanner );
int yyget_debug ( yyscan_t yyscanner );
void yyset_debug ( int debug_flag , yyscan_t yyscanner );
YY_EXTRA_TYPE yyget_extra ( yyscan_t yyscanner );
void yyset_extra ( YY_EXTRA_TYPE user_defined , yyscan_t yyscanner );
FILE *yyget_in ( yyscan_t yyscanner );
void yyset_in ( FILE * _in_str , yyscan_t yyscanner );
FILE *yyget_out ( yyscan_t yyscanner );
void yyset_out ( FILE * _out_str , yyscan_t yyscanner );
int yyget_leng ( yyscan_t yyscanner );
char *yyget_text ( yyscan_t yyscanner );
int yyget_lineno ( yyscan_t yyscanner );
void yyset_lineno ( int _line_number , yyscan_t yyscanner );
int yyget_column ( yyscan_t yyscanner );
void yyset_column ( int _column_no , yyscan_t yyscanner );
YYSTYPE * yyget_lval ( yyscan_t yyscanner );
void yyset_lval ( YYSTYPE * yylval_param , yyscan_t yyscanner );
/* Macros after this point can all be overridden by user definitions in
* section 1.
*/
#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap ( yyscan_t yyscanner );
#else
extern int yywrap ( yyscan_t yyscanner );
#endif
#endif
#ifndef YY_NO_UNPUT
#endif
#ifndef yytext_ptr
static void yy_flex_strncpy ( char *, const char *, int , yyscan_t yyscanner);
#endif
#ifdef YY_NEED_STRLEN
static int yy_flex_strlen ( const char * , yyscan_t yyscanner);
#endif
#ifndef YY_NO_INPUT
#ifdef __cplusplus
static int yyinput ( yyscan_t yyscanner );
#else
static int input ( yyscan_t yyscanner );
#endif
#endif
/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#ifdef __ia64__
/* On IA-64, the buffer size is 16k, not 8k */
#define YY_READ_BUF_SIZE 16384
#else
#define YY_READ_BUF_SIZE 8192
#endif /* __ia64__ */
#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 do { if (fwrite( yytext, (size_t) yyleng, 1, yyout )) {} } while (0)
#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( yyin )) != EOF && c != '\n'; ++n ) \
buf[n] = (char) c; \
if ( c == '\n' ) \
buf[n++] = (char) c; \
if ( c == EOF && ferror( yyin ) ) \
YY_FATAL_ERROR( "input in flex scanner failed" ); \
result = n; \
} \
else \
{ \
errno=0; \
while ( (result = (int) fread(buf, 1, (yy_size_t) max_size, yyin)) == 0 && ferror(yyin)) \
{ \
if( errno != EINTR) \
{ \
YY_FATAL_ERROR( "input in flex scanner failed" ); \
break; \
} \
errno=0; \
clearerr(yyin); \
} \
}\
\
#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 , yyscanner)
#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 yylex \
(YYSTYPE * yylval_param , yyscan_t yyscanner);
#define YY_DECL int yylex \
(YYSTYPE * yylval_param , yyscan_t yyscanner)
#endif /* !YY_DECL */
/* Code executed at the beginning of each rule, after yytext and yyleng
* 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 /*LINTED*/break;
#endif
#define YY_RULE_SETUP \