forked from osmocom/wireshark
114 lines
2.8 KiB
Plaintext
114 lines
2.8 KiB
Plaintext
/* -*-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 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 "text2pcap_" rather than "yy" to avoid a
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* "redefined macro" warning with flex 2.6.3.
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*/
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%option prefix="text2pcap_"
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%{
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/********************************************************************************
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*
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* text2pcap-scanner.l
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*
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* Utility to convert an ASCII hexdump into a libpcap-format capture file
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*
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* (c) Copyright 2001 Ashok Narayanan <ashokn@cisco.com>
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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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* SPDX-License-Identifier: GPL-2.0-or-later
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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 "text2pcap.h"
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/*
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* Disable diagnostics in the code generated by Flex.
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*/
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DIAG_OFF_FLEX
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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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#endif
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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} { if (parse_token(T_BYTE, yytext) != EXIT_SUCCESS) return EXIT_FAILURE; }
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{byte_eol} { if (parse_token(T_BYTE, yytext) != EXIT_SUCCESS) return EXIT_FAILURE;
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if (parse_token(T_EOL, NULL) != EXIT_SUCCESS) return EXIT_FAILURE; }
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{offset} { if (parse_token(T_OFFSET, yytext) != EXIT_SUCCESS) return EXIT_FAILURE; }
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{offset_eol} { if (parse_token(T_OFFSET, yytext) != EXIT_SUCCESS) return EXIT_FAILURE;
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if (parse_token(T_EOL, NULL) != EXIT_SUCCESS) return EXIT_FAILURE; }
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{mailfwd}{offset} { if (parse_token(T_OFFSET, yytext+1) != EXIT_SUCCESS) return EXIT_FAILURE; }
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{eol} { if (parse_token(T_EOL, NULL) != EXIT_SUCCESS) return EXIT_FAILURE; }
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[ \t] ; /* ignore whitespace */
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{directive} { if (parse_token(T_DIRECTIVE, yytext) != EXIT_SUCCESS) return EXIT_FAILURE;
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if (parse_token(T_EOL, NULL) != EXIT_SUCCESS) return EXIT_FAILURE; }
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{comment} { if (parse_token(T_EOL, NULL) != EXIT_SUCCESS) return EXIT_FAILURE; }
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{text} { if (parse_token(T_TEXT, yytext) != EXIT_SUCCESS) return EXIT_FAILURE; }
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%%
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/*
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* Turn diagnostics back on, so we check the code that we've written.
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*/
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DIAG_ON_FLEX
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int
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text2pcap_scan(void)
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{
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int ret;
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ret = text2pcap_lex();
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text2pcap_lex_destroy();
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return ret;
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}
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