![Anders Broman](/assets/img/avatar_default.png)
VC6 Build problem: wiretap/k12text.c includes unistd. https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=2851 svn path=/trunk/; revision=26161
349 lines
8.6 KiB
Text
349 lines
8.6 KiB
Text
/*
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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 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 "K12Text_" 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="K12Text_"
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%option outfile="k12text.c"
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%{
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/* k12text.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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/*
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* TODO:
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* - fix timestamps after midnight
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* - verify encapsulations
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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 <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <time.h>
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#include "wtap-int.h"
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#include "wtap.h"
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#include "file_wrappers.h"
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#include "buffer.h"
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#include "k12.h"
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#include "k12text_lex.h"
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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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static guint h;
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static guint m;
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static guint s;
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static guint ms;
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static guint ns;
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static gint encap;
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static guint8 b[65536];
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static guint i;
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static gboolean is_k12text;
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static gboolean at_eof;
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static guint junk_chars = 0;
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static void finalize_frame(void);
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static gchar* error_str;
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static gint64 cum_offset;
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static gboolean ok_frame;
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static FILE_T yy_fh;
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#define RESET() do { ok_frame = FALSE; h=0; m=0; s=0; ns=0; ms=0; i=0; is_k12text=FALSE; junk_chars = 0; error_str = NULL; } while(0)
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#define KERROR(text) do { error_str = g_strdup(text); yyterminate(); } while(0)
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#define START_PACKET RESET
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#define SET_HOURS(text) h = strtoul(text,NULL,10)
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#define SET_MINUTES(text) m = strtoul(text,NULL,10)
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#define SET_SECONDS(text) s = strtoul(text,NULL,10)
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#define SET_MS(text) ms = strtoul(text,NULL,10)
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#define SET_NS(text) ns = strtoul(text,NULL,10)
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#define SET_ENCAP(text) set_encap(text)
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#define ADD_BYTE(text) do {if (i >= 65536) {KERROR("frame too large");} b[i++] = (guint8)strtoul(text,NULL,16); } while(0)
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#define FINALIZE_FRAME() finalize_frame()
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/*~ #define ECHO*/
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#define YY_USER_ACTION cum_offset += yyleng;
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#define YY_INPUT(buf,result,max_size) { int c = file_getc(yy_fh); result = (c==EOF) ? YY_NULL : (buf[0] = c, 1); }
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#define MAX_JUNK 400000
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#define ECHO
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%}
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start_timestamp \053[\055]{9}\053[\055]{15,100}\053[\055]{10,100}\053
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oneormoredigits [0-9]+:
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twodigits [0-9][0-9]
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colon :
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comma ,
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threedigits [0-9][0-9][0-9]
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start_bytes \174\060\040\040\040\174
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bytes_junk \174[A-F0-9][A-F0-9\040][A-F0-9\040][A-F0-9\040]\174
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byte [a-f0-9][a-f0-9]\174
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end_bytes \015\012\015\012
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eth ETHER
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mtp2 MTP-L2
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sscop SSCOP
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sscfnni SSCF
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hdlc HDLC
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%START NEXT_FRAME HOURS H2M MINUTES M2S S2M MS M2N NS ENCAP STARTBYTES BYTE ENDBYTES MAGIC SECONDS
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%%
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<MAGIC>{start_timestamp} { is_k12text = TRUE; yyterminate(); }
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<MAGIC>. { if (++ junk_chars > MAX_JUNK) { is_k12text = FALSE; yyterminate(); } }
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<NEXT_FRAME>{start_timestamp} { START_PACKET(); BEGIN(HOURS); }
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<HOURS>{oneormoredigits} { SET_HOURS(yytext); BEGIN(MINUTES); }
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<MINUTES>{twodigits} { SET_MINUTES(yytext); BEGIN(M2S);}
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<M2S>{colon} { BEGIN(SECONDS);}
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<SECONDS>{twodigits} { SET_SECONDS(yytext); BEGIN(S2M); }
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<S2M>{comma} { BEGIN(MS); }
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<MS>{threedigits} { SET_MS(yytext); BEGIN(M2N); }
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<M2N>{comma} { BEGIN(NS); }
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<NS>{threedigits} { SET_NS(yytext); BEGIN(ENCAP);}
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<ENCAP>{eth} {encap = WTAP_ENCAP_ETHERNET; BEGIN(STARTBYTES); }
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<ENCAP>{mtp2} {encap = WTAP_ENCAP_MTP2; BEGIN(STARTBYTES); }
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<ENCAP>{sscop} {encap = WTAP_ENCAP_ATM_PDUS; BEGIN(STARTBYTES); }
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<ENCAP>{sscfnni} {encap = WTAP_ENCAP_MTP3; BEGIN(STARTBYTES); }
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<ENCAP>{hdlc} {encap = WTAP_ENCAP_CHDLC; BEGIN(STARTBYTES); }
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<ENCAP,STARTBYTES>{start_bytes} { BEGIN(BYTE); }
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<BYTE>{byte} { ADD_BYTE(yytext); }
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<BYTE>{bytes_junk} ;
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<BYTE>{end_bytes} { FINALIZE_FRAME(); yyterminate(); }
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. { if (++junk_chars > MAX_JUNK) { KERROR("too much junk"); } }
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<<EOF>> { at_eof = TRUE; yyterminate(); }
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%%
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static void finalize_frame(void) {
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ok_frame = TRUE;
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}
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static gboolean k12text_read(wtap *wth, int *err, char ** err_info _U_, gint64 *data_offset) {
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gint64 start_offset = cum_offset;
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encap = WTAP_ENCAP_UNKNOWN;
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ok_frame = FALSE;
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BEGIN(NEXT_FRAME);
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yylex();
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if (ok_frame == FALSE) {
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if (at_eof) {
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*err_info = NULL;
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*err = 0;
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} else {
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*err_info = error_str;
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*err = WTAP_ERR_BAD_RECORD;
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}
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return FALSE;
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}
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wth->data_offset = *data_offset = start_offset ;
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wth->phdr.ts.secs = 946681200 + (3600*h) + (60*m) + s;
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wth->phdr.ts.nsecs = 1000000*ms + 1000*ns;
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wth->phdr.caplen = wth->phdr.len = i;
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wth->phdr.pkt_encap = encap;
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buffer_assure_space(wth->frame_buffer, wth->phdr.caplen);
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memcpy(buffer_start_ptr(wth->frame_buffer), b, wth->phdr.caplen);
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return TRUE;
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}
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static gboolean k12text_seek_read(wtap *wth, gint64 seek_off, union wtap_pseudo_header *pseudo_header _U_, guint8 *pd, int length, int *err, char **err_info) {
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gint64 save_offset = cum_offset;
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ok_frame = FALSE;
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RESET();
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yy_fh = wth->random_fh;
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if ( file_seek(yy_fh, seek_off, SEEK_SET, err) == -1) {
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return FALSE;
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}
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BEGIN(NEXT_FRAME);
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yylex();
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if (ok_frame == FALSE) {
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*err_info = error_str;
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*err = WTAP_ERR_BAD_RECORD;
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return FALSE;
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}
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memcpy(pd, b, length);
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cum_offset = save_offset ;
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return TRUE;
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}
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static void k12text_close(wtap *wth _U_) {
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(void)0;
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}
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int k12text_open(wtap *wth, int *err, gchar **err_info _U_) {
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cum_offset = 0;
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RESET();
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yy_fh = wth->fh;
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BEGIN(MAGIC);
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yylex();
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if (! is_k12text) return 0;
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if ( file_seek(yy_fh, 0, SEEK_SET, err) == -1) {
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return -1;
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}
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cum_offset = 0;
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wth->data_offset = 0;
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wth->file_type = WTAP_FILE_K12TEXT;
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wth->file_encap = WTAP_ENCAP_PER_PACKET;
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wth->snapshot_length = 0;
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wth->subtype_read = k12text_read;
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wth->subtype_seek_read = k12text_seek_read;
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wth->subtype_close = k12text_close;
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wth->capture.generic = NULL;
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wth->tsprecision = WTAP_FILE_TSPREC_NSEC;
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return 1;
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}
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static const struct { int e; const char* s; } encaps[] = {
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{ WTAP_ENCAP_ETHERNET, "ETHER" },
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{ WTAP_ENCAP_MTP2, "MTP-L2" },
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{ WTAP_ENCAP_ATM_PDUS, "SSCOP" },
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{ WTAP_ENCAP_MTP3, "SSCF" },
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{ WTAP_ENCAP_CHDLC, "HDLC" },
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/* ... */
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{ WTAP_ENCAP_UNKNOWN, "UNKNOWN" },
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{ 0, NULL }
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};
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static gboolean k12text_dump(wtap_dumper *wdh _U_, const struct wtap_pkthdr *phdr,
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const union wtap_pseudo_header *pseudo_header _U_,
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const guchar *pd, int *err _U_) {
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char buf[196808];
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size_t left = 196808;
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gint wl;
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char* p=buf;
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const char* str_enc = "";
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guint i;
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guint ns;
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guint ms;
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ms = phdr->ts.nsecs / 1000000;
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ns = (phdr->ts.nsecs - (1000000*ms))/1000;
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for(i=0; encaps[i].s; i++) {
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str_enc = encaps[i].s;
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if (phdr->pkt_encap == encaps[i].e) break;
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}
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strftime(p,90,"+---------+---------------+----------+\r\n%H:%M:%S,",gmtime(&phdr->ts.secs));
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wl = strlen(p);
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p += wl;
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left -= wl;
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wl = g_snprintf(p,left,"%.3d,%.3d %s\r\n|0 |",ms,ns,str_enc);
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p+= wl;
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left -= wl;
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for(i=0;i < phdr->caplen && left > 2; i++) {
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wl = g_snprintf(p,left,"%.2x|",pd[i]);
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p += wl;
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left -= wl;
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}
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wl = g_snprintf(p,left,"\r\n\r\n");
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p+= wl;
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left -= wl;
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fwrite(buf, 1, strlen(buf), wdh->fh);
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return TRUE;
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}
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static gboolean k12text_dump_close(wtap_dumper *wdh _U_ , int *err _U_) {
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return TRUE;
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}
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gboolean k12text_dump_open(wtap_dumper *wdh, gboolean cant_seek, int *err) {
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if (cant_seek) {
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*err = WTAP_ERR_CANT_WRITE_TO_PIPE;
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return FALSE;
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}
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wdh->subtype_write = k12text_dump;
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wdh->subtype_close = k12text_dump_close;
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return TRUE;
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}
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int k12text_dump_can_write_encap(int encap) {
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switch (encap) {
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case WTAP_ENCAP_PER_PACKET:
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case WTAP_ENCAP_ETHERNET:
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case WTAP_ENCAP_MTP2:
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case WTAP_ENCAP_ATM_PDUS:
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case WTAP_ENCAP_MTP3:
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case WTAP_ENCAP_CHDLC:
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case WTAP_ENCAP_UNKNOWN:
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return 0;
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default:
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return WTAP_ERR_UNSUPPORTED_ENCAP;
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}
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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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