360 lines
6.8 KiB
Text
360 lines
6.8 KiB
Text
/*
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* We don't read from the terminal.
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*/
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%option never-interactive
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/*
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* Prefix scanner routines with "ascend" 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="ascend"
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%{
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/* ascend-scanner.l
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*
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* $Id$
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*
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* Wiretap Library
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* Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_IO_H
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#include <io.h> /* for isatty() on win32 */
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#endif
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#include "wtap-int.h"
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#include "ascend.h"
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#include "ascend-grammar.h"
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#include "ascend-int.h"
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#include "file_wrappers.h"
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#include "ascend-scanner_lex.h"
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FILE_T yy_fh;
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extern char *ascend_ra_ptr;
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extern char *ascend_ra_last;
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#define YY_INPUT(buf,result,max_size) { int c = file_getc(yy_fh); \
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result = (c==EOF) ? YY_NULL : (buf[0] = c, 1); }
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int at_eof;
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int mul, scratch;
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#define NO_USER "<none>"
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#ifndef HAVE_UNISTD_H
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#define YY_NO_UNISTD_H
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#endif
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%}
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D [0-9]
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H [A-Fa-f0-9]
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PPP_XPFX PPP-OUT
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PPP_RPFX PPP-IN
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ISDN_XPFX PRI-XMIT-
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ISDN_RPFX PRI-RCV-
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WAN_XPFX XMIT[\-:]*
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WAN_RPFX RECV[\-:]*
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ETHER_PFX ETHER
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WDD_DATE "Date:"
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WDD_TIME "Time:"
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WDD_CAUSE "Cause an attempt to place call to "
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WDD_CALLNUM [^\n\r\t ]+
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WDD_CHUNK "WD_DIALOUT_DISP: chunk"
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WDD_TYPE "type "[^\n\r\t ]+
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%s sc_gen_task
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%s sc_gen_time_s
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%s sc_gen_time_u
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%s sc_gen_octets
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%s sc_gen_counter
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%s sc_gen_byte
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%s sc_wds_user
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%s sc_wds_sess
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%s sc_wdd_date_d
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%s sc_wdd_date_m
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%s sc_wdd_date_y
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%s sc_wdd_time
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%s sc_wdd_time_h
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%s sc_wdd_time_m
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%s sc_wdd_time_s
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%s sc_wdd_cause
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%s sc_wdd_callnum
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%s sc_wdd_chunk
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%s sc_wdd_chunknum
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%s sc_wdd_type
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%s sc_chardisp
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%s sc_isdn_call
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%s sc_ether_direction
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%%
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<INITIAL,sc_gen_byte>{ETHER_PFX} {
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BEGIN(sc_ether_direction);
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ascendlval.d = ASCEND_PFX_ETHER;
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return ETHER_PREFIX;
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}
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<INITIAL,sc_gen_byte>{ISDN_XPFX} {
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BEGIN(sc_isdn_call);
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ascendlval.d = ASCEND_PFX_ISDN_X;
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return ISDN_PREFIX;
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}
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<INITIAL,sc_gen_byte>{ISDN_RPFX} {
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BEGIN(sc_isdn_call);
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ascendlval.d = ASCEND_PFX_ISDN_R;
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return ISDN_PREFIX;
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}
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<INITIAL,sc_gen_byte>{WAN_XPFX} {
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BEGIN(sc_wds_user);
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ascendlval.d = ASCEND_PFX_WDS_X;
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return WDS_PREFIX;
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}
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<INITIAL,sc_gen_byte>{WAN_RPFX} {
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BEGIN(sc_wds_user);
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ascendlval.d = ASCEND_PFX_WDS_R;
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return WDS_PREFIX;
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}
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<INITIAL,sc_gen_byte>{PPP_XPFX} {
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BEGIN(sc_wds_user);
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ascendlval.d = ASCEND_PFX_WDS_X;
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return WDS_PREFIX;
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}
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<INITIAL,sc_gen_byte>{PPP_RPFX} {
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BEGIN(sc_wds_user);
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ascendlval.d = ASCEND_PFX_WDS_R;
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return WDS_PREFIX;
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}
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<sc_ether_direction>[^\(]+ {
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BEGIN(sc_gen_task);
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return STRING;
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}
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<sc_isdn_call>[^\/\(:]+ {
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BEGIN(sc_gen_task);
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return DECNUM;
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}
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<sc_wds_user>[^:]+ {
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char *atcopy = g_strdup(ascendtext);
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char colon = input();
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char after = input();
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int retval = STRING;
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unput(after); unput(colon);
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if (after != '(' && after != ' ') {
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BEGIN(sc_wds_sess);
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if (pseudo_header != NULL) {
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g_strlcpy(pseudo_header->user, atcopy, ASCEND_MAX_STR_LEN);
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}
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} else { /* We have a version 7 file */
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BEGIN(sc_gen_task);
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if (pseudo_header != NULL) {
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g_strlcpy(pseudo_header->user, NO_USER, ASCEND_MAX_STR_LEN);
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}
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ascendlval.d = strtol(ascendtext, NULL, 10);
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retval = DECNUM;
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}
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g_free (atcopy);
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return retval;
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}
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<sc_wds_sess>{D}* {
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BEGIN(sc_gen_task);
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ascendlval.d = strtol(ascendtext, NULL, 10);
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return DECNUM;
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}
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<sc_gen_task>(0x|0X)?{H}+ {
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BEGIN(sc_gen_time_s);
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ascendlval.d = strtoul(ascendtext, NULL, 16);
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return HEXNUM;
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}
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<sc_gen_task>\"[A-Za-z0-9_ ]+\" {
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return STRING;
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}
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<sc_gen_time_s>{D}+ {
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BEGIN(sc_gen_time_u);
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ascendlval.d = strtol(ascendtext, NULL, 10);
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return DECNUM;
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}
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<sc_gen_time_u>{D}+ {
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char *atcopy = g_strdup(ascendtext);
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BEGIN(sc_gen_octets);
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/* only want the most significant 2 digits. convert to usecs */
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if (strlen(atcopy) > 2)
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atcopy[2] = '\0';
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ascendlval.d = strtol(atcopy, NULL, 10) * 10000;
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g_free(atcopy);
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return DECNUM;
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}
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<sc_gen_octets>{D}+ {
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BEGIN(sc_gen_counter);
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ascendlval.d = strtol(ascendtext, NULL, 10);
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return DECNUM;
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}
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<sc_gen_counter,sc_gen_byte>"["{H}{4}"]:" {
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BEGIN(sc_gen_byte);
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return COUNTER;
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}
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<sc_gen_byte>{H}{2} {
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ascendlval.b = (guint8)strtol(ascendtext, NULL, 16);
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return HEXBYTE;
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}
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<sc_gen_byte>" "{4} {
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BEGIN(sc_chardisp);
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}
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<sc_chardisp>.* {
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BEGIN(sc_gen_byte);
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}
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<INITIAL,sc_gen_byte>{WDD_DATE} {
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BEGIN(sc_wdd_date_d);
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return WDD_DATE;
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}
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<sc_wdd_date_d>{D}{2} {
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BEGIN(sc_wdd_date_m);
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ascendlval.d = strtol(ascendtext, NULL, 10);
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return DECNUM;
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}
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<sc_wdd_date_m>{D}{2} {
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BEGIN(sc_wdd_date_y);
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ascendlval.d = strtol(ascendtext, NULL, 10);
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return DECNUM;
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}
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<sc_wdd_date_y>{D}{4} {
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BEGIN(sc_wdd_time);
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ascendlval.d = strtol(ascendtext, NULL, 10);
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return DECNUM;
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}
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<sc_wdd_time>{WDD_TIME} {
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BEGIN(sc_wdd_time_h);
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return KEYWORD;
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}
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<sc_wdd_time_h>{D}{2} {
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BEGIN(sc_wdd_time_m);
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ascendlval.d = strtol(ascendtext, NULL, 10);
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return DECNUM;
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}
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<sc_wdd_time_m>{D}{2} {
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BEGIN(sc_wdd_time_s);
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ascendlval.d = strtol(ascendtext, NULL, 10);
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return DECNUM;
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}
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<sc_wdd_time_s>{D}{2} {
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BEGIN(sc_wdd_cause);
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ascendlval.d = strtol(ascendtext, NULL, 10);
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return DECNUM;
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}
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<sc_wdd_cause>{WDD_CAUSE} {
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BEGIN(sc_wdd_callnum);
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return KEYWORD;
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}
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<sc_wdd_callnum>{WDD_CALLNUM} {
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BEGIN(sc_wdd_chunk);
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if (pseudo_header != NULL) {
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g_strlcpy(pseudo_header->call_num, ascendtext, ASCEND_MAX_STR_LEN);
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}
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return STRING;
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}
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<INITIAL,sc_wdd_chunk,sc_gen_byte>{WDD_CHUNK} {
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BEGIN(sc_wdd_chunknum);
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return WDD_CHUNK;
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}
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<sc_wdd_chunknum>{H}+ {
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BEGIN(sc_wdd_type);
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ascendlval.d = strtoul(ascendtext, NULL, 16);
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return HEXNUM;
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}
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<sc_wdd_type>{WDD_TYPE} {
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BEGIN(sc_gen_task);
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return KEYWORD;
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}
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<sc_gen_task>\/{D}+ {
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return SLASH_SUFFIX;
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}
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(0x|0X)?{H}+ { return HEXNUM; }
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task:|task|at|time:|octets { return KEYWORD; }
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<<EOF>> { at_eof++; yyterminate(); }
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(.|\n) ;
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%%
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void ascend_init_lexer(FILE_T fh)
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{
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yyrestart(0);
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yy_fh = fh;
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BEGIN(INITIAL);
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}
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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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* (%option noyywrap is not used because if used then
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* some flex versions (eg: 2.5.35) generate code which causes
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* warnings by the Windows VC compiler).
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*/
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int yywrap(void) {
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return 1;
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}
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