![Guy Harris](/assets/img/avatar_default.png)
That way, if we #define anything for large file support, that's done before we include any system header files that either depend on that definition or that define it themselves if it's not already defined. Change-Id: I9b07344151103be337899dead44d6960715d6813 Reviewed-on: https://code.wireshark.org/review/19035 Petri-Dish: Guy Harris <guy@alum.mit.edu> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Guy Harris <guy@alum.mit.edu>
137 lines
3.9 KiB
Text
137 lines
3.9 KiB
Text
/* -*-mode: flex-*- */
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%top {
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/* Include this before everything else, for various large-file definitions */
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#include "config.h"
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}
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/*
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* We want a reentrant scanner.
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*/
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%option reentrant
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/*
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* We don't use input, so don't generate code for it.
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*/
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%option noinput
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/*
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* We don't use unput, so don't generate code for it.
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*/
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%option nounput
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/*
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* We don't read interactively from the terminal.
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*/
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%option never-interactive
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/*
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* We want to stop processing when we get to the end of the input.
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*/
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%option noyywrap
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/*
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* Prefix scanner routines with "text_import_" rather than "yy", so this scanner
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* can coexist with other scanners.
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*/
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%option prefix="text_import_"
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/*
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* We have to override the memory allocators so that we don't get
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* "unused argument" warnings from the yyscanner argument (which
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* we don't use, as we have a global memory allocator).
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*
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* We provide, as macros, our own versions of the routines generated by Flex,
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* which just call malloc()/realloc()/free() (as the Flex versions do),
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* discarding the extra argument.
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*/
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%option noyyalloc
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%option noyyrealloc
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%option noyyfree
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%{
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/********************************************************************************
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*
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* text_import_scanner.l
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* Scanner for text import
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* November 2010, Jaap Keuter <jaap.keuter@xs4all.nl>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* Based on text2pcap-scanner.l by Ashok Narayanan <ashokn@cisco.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*******************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include "text_import_scanner.h"
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/*
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* Flex (v 2.5.35) uses this symbol to "exclude" unistd.h
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*/
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#ifdef _WIN32
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# define YY_NO_UNISTD_H
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/* disable Windows VC compiler warning "signed/unsigned mismatch" associated */
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/* with YY_INPUT code generated by flex versions such as 2.5.35. */
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# pragma warning (disable:4018)
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#endif
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/*
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* Sleazy hack to suppress compiler warnings in yy_fatal_error().
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*/
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#define YY_EXIT_FAILURE ((void)yyscanner, 2)
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/*
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* Macros for the allocators, to discard the extra argument.
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*/
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#define text_import_alloc(size, yyscanner) (void *)malloc(size)
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#define text_import_realloc(ptr, size, yyscanner) (void *)realloc((char *)(ptr), (size))
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#define text_import_free(ptr, yyscanner) free((char *)ptr)
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%}
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hexdigit [0-9A-Fa-f]
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directive ^#TEXT2PCAP.*\r?\n
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comment ^[\t ]*#.*\r?\n
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byte [0-9A-Fa-f][0-9A-Fa-f][ \t]
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byte_eol [0-9A-Fa-f][0-9A-Fa-f]\r?\n
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offset [0-9A-Fa-f]+[: \t]
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offset_eol [0-9A-Fa-f]+\r?\n
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text [^ \n\t]+
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mailfwd >
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eol \r?\n\r?
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%%
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{byte} { parse_token(T_BYTE, yytext); }
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{byte_eol} { parse_token(T_BYTE, yytext); parse_token(T_EOL, NULL); }
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{offset} { parse_token(T_OFFSET, yytext); }
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{offset_eol} { parse_token(T_OFFSET, yytext); parse_token(T_EOL, NULL); }
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{mailfwd}{offset} { parse_token(T_OFFSET, yytext+1); }
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{eol} { parse_token(T_EOL, NULL); }
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[ \t] ; /* ignore whitespace */
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{directive} { parse_token(T_DIRECTIVE, yytext); parse_token(T_EOL, NULL); }
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{comment} { parse_token(T_EOL, NULL); }
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{text} { parse_token(T_TEXT, yytext); }
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<<EOF>> { write_current_packet(); yyterminate(); }
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