forked from osmocom/wireshark
![Balint Reczey](/assets/img/avatar_default.png)
Change-Id: I889283902875193f4d3f3fd59788f59f8d9bcc20 Reviewed-on: https://code.wireshark.org/review/11945 Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com> Reviewed-by: Anders Broman <a.broman58@gmail.com>
383 lines
7.7 KiB
Text
383 lines
7.7 KiB
Text
/*
|
|
* We don't use input, so don't generate code for it.
|
|
*/
|
|
%option noinput
|
|
|
|
/*
|
|
* We don't use unput, so don't generate code for it.
|
|
*/
|
|
%option nounput
|
|
|
|
/*
|
|
* We don't read interactively from the terminal.
|
|
*/
|
|
%option never-interactive
|
|
|
|
/*
|
|
* We want to stop processing when we get to the end of the input.
|
|
*/
|
|
%option noyywrap
|
|
|
|
/*
|
|
* Prefix scanner routines with "uat_load_" rather than "yy", so this scanner
|
|
* can coexist with other scanners.
|
|
*/
|
|
%option prefix="uat_load_"
|
|
|
|
%{
|
|
/*
|
|
* uat_load.l
|
|
*
|
|
* User Accessible Tables
|
|
* Maintain an array of user accessible data strucures
|
|
* One parser to fit them all
|
|
*
|
|
* (c) 2007, Luis E. Garcia Ontanon <luis@ontanon.org>
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 2001 Gerald Combs
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
#include "config.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#include <glib.h>
|
|
|
|
#include "uat-int.h"
|
|
#include "uat_load_lex.h"
|
|
#include <wsutil/file_util.h>
|
|
|
|
#ifdef _WIN32
|
|
/* disable Windows VC compiler warning "signed/unsigned mismatch" associated */
|
|
/* with YY_INPUT code generated by flex versions such as 2.5.35. */
|
|
#pragma warning (disable:4018)
|
|
#endif
|
|
|
|
static uat_t* uat;
|
|
static gboolean valid_record;
|
|
static guint colnum;
|
|
static gchar* ptrx;
|
|
static guint len;
|
|
static gchar* error;
|
|
static void* record;
|
|
static guint linenum;
|
|
static gchar *parse_str;
|
|
static size_t parse_str_pos;
|
|
|
|
#define ERROR(fmtd) do { \
|
|
char* fmt_str = g_strdup_printf fmtd; \
|
|
error = g_strdup_printf("%s:%d: %s",uat->filename,linenum,fmt_str); \
|
|
g_free(fmt_str); \
|
|
yyterminate(); \
|
|
} while(0)
|
|
|
|
#define SET_FIELD() \
|
|
{ gchar* errx; \
|
|
if (uat->fields[colnum].cb.chk) { \
|
|
if ( ! uat->fields[colnum].cb.chk(record, ptrx, len, uat->fields[colnum].cbdata.chk, uat->fields[colnum].fld_data, &errx) ) { \
|
|
error = g_strdup_printf("%s:%d: %s",uat->filename,linenum,errx); \
|
|
g_free(errx); \
|
|
valid_record = FALSE; \
|
|
}\
|
|
}\
|
|
uat->fields[colnum].cb.set(record, ptrx, len, uat->fields[colnum].cbdata.chk, uat->fields[colnum].fld_data);\
|
|
g_free(ptrx);\
|
|
colnum++; \
|
|
} while(0)
|
|
|
|
#ifdef DEBUG_UAT_LOAD
|
|
#define DUMP_FIELD(str) \
|
|
{ guint i; printf("%s: %s='",str,uat->fields[colnum].name); for(i=0;i<len;i++) if (uat->fields[colnum].mode == PT_TXTMOD_HEXBYTES) { printf("%.2x ",((guint8*)ptrx)[i]); } else putc(ptrx[i],stdout); printf("'[%d]\n",len); }
|
|
|
|
#define DUMP(str) printf("%s\n",str)
|
|
#else
|
|
#define DUMP_FIELD(s)
|
|
#define DUMP(s)
|
|
#endif
|
|
|
|
/* Modified version of YY_INPUT generated by Flex 2.91 */
|
|
#define YY_INPUT(buf,result,max_size) \
|
|
if ( parse_str ) \
|
|
{ \
|
|
size_t n = 0; \
|
|
size_t pslen = strlen(parse_str); \
|
|
if (parse_str_pos < pslen) \
|
|
{ \
|
|
n = pslen - parse_str_pos; \
|
|
if (n > max_size) n = max_size; \
|
|
memcpy(buf, parse_str + parse_str_pos, n); \
|
|
parse_str_pos += n; \
|
|
} \
|
|
result = n; \
|
|
} \
|
|
else \
|
|
{ \
|
|
errno=0; \
|
|
while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
|
|
{ \
|
|
if( errno != EINTR) \
|
|
{ \
|
|
YY_FATAL_ERROR( "input in flex scanner failed" ); \
|
|
break; \
|
|
} \
|
|
errno=0; \
|
|
clearerr(yyin); \
|
|
} \
|
|
}
|
|
|
|
/*
|
|
* XXX
|
|
* quoted_string below fails badly on "...\\"
|
|
* workarround in uat_save(), using /x5c and /x22
|
|
*/
|
|
%}
|
|
|
|
quoted_string \042([^\042]|\134\042)*\042
|
|
binstring ([0-9a-zA-Z][0-9a-zA-Z])*
|
|
separator [ \t]*,
|
|
newline [ \t]*[\r]?\n
|
|
ws [ \t]+
|
|
comment #[^\n]*\n
|
|
|
|
%x START_OF_LINE NEXT_FIELD SEPARATOR END_OF_RECORD ERRORED
|
|
%%
|
|
<START_OF_LINE,NEXT_FIELD>{ws} ;
|
|
<START_OF_LINE>{newline} linenum++;
|
|
<START_OF_LINE>{comment} linenum++;
|
|
|
|
<START_OF_LINE,NEXT_FIELD>{separator} {
|
|
ptrx = g_strdup("");
|
|
len = 0;
|
|
|
|
DUMP_FIELD("empty->next");
|
|
|
|
SET_FIELD();
|
|
|
|
if ( colnum >= uat->ncols ) {
|
|
ERROR(("more fields than required"));
|
|
}
|
|
|
|
BEGIN NEXT_FIELD;
|
|
}
|
|
|
|
<START_OF_LINE,NEXT_FIELD>{newline} {
|
|
ptrx = g_strdup("");
|
|
len = 0;
|
|
|
|
BEGIN END_OF_RECORD;
|
|
|
|
yyless((int) yyleng);
|
|
}
|
|
|
|
<START_OF_LINE,NEXT_FIELD>{quoted_string} {
|
|
ptrx = uat_undquote(yytext, (guint) yyleng, &len);
|
|
|
|
|
|
if (colnum < uat->ncols - 1) {
|
|
DUMP("quoted_str->s");
|
|
BEGIN SEPARATOR;
|
|
} else {
|
|
DUMP("quoted_str->eor");
|
|
BEGIN END_OF_RECORD;
|
|
}
|
|
}
|
|
|
|
<START_OF_LINE,NEXT_FIELD>{binstring} {
|
|
ptrx = uat_unbinstring(yytext, (guint) yyleng, &len);
|
|
|
|
if (!ptrx) {
|
|
ERROR(("uneven hexstring for field %s",uat->fields[colnum].name));
|
|
}
|
|
|
|
if ( colnum < uat->ncols - 1 ) {
|
|
DUMP("binstring->s");
|
|
BEGIN SEPARATOR;
|
|
} else {
|
|
DUMP("binstring->eor");
|
|
BEGIN END_OF_RECORD;
|
|
}
|
|
}
|
|
|
|
<SEPARATOR>{separator} {
|
|
|
|
DUMP_FIELD("separator->next");
|
|
|
|
SET_FIELD();
|
|
|
|
if ( colnum >= uat->ncols ) {
|
|
ERROR(("more fields than required"));
|
|
}
|
|
|
|
BEGIN NEXT_FIELD;
|
|
}
|
|
|
|
<SEPARATOR>{newline} {
|
|
linenum++;
|
|
ERROR(("expecting field %s in previous line",uat->fields[colnum].name));
|
|
}
|
|
|
|
<SEPARATOR>. {
|
|
ERROR(("unexpected char '%s' while looking for field %s",yytext,uat->fields[colnum].name));
|
|
}
|
|
|
|
<END_OF_RECORD>{separator} {
|
|
ERROR(("more fields than required"));
|
|
}
|
|
|
|
<END_OF_RECORD>{newline} {
|
|
void* rec;
|
|
char* err = NULL;
|
|
|
|
linenum++;
|
|
|
|
DUMP_FIELD("newline->start");
|
|
|
|
SET_FIELD();
|
|
|
|
rec = uat_add_record(uat, record, valid_record);
|
|
|
|
if ((uat->update_cb) && (rec != NULL)) {
|
|
if (!uat->update_cb(rec,&err)) {
|
|
error = err;
|
|
yyterminate();
|
|
}
|
|
}
|
|
|
|
valid_record = TRUE;
|
|
colnum = 0;
|
|
ptrx = NULL;
|
|
len = 0;
|
|
|
|
/* XXX is this necessary since we free it before reusing anyway? */
|
|
memset(record,0,uat->record_size);
|
|
|
|
BEGIN START_OF_LINE;
|
|
}
|
|
|
|
<END_OF_RECORD>. {
|
|
ERROR(("unexpected char while looking for end of line"));
|
|
}
|
|
|
|
<ERRORED>{newline} { linenum++; BEGIN START_OF_LINE; }
|
|
<ERRORED>. ;
|
|
|
|
{newline} { linenum++; ERROR(("incomplete record")); }
|
|
. { ERROR(("unexpected input")); }
|
|
|
|
%%
|
|
|
|
|
|
|
|
|
|
gboolean
|
|
uat_load(uat_t *uat_in, char **errx)
|
|
{
|
|
gchar *fname = uat_get_actual_filename(uat_in, FALSE);
|
|
|
|
uat = uat_in;
|
|
parse_str = NULL;
|
|
|
|
if (!fname) {
|
|
UAT_UPDATE(uat);
|
|
|
|
if (uat->post_update_cb)
|
|
uat->post_update_cb();
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
if (!(yyin = ws_fopen(fname,"r"))) {
|
|
*errx = g_strdup(g_strerror(errno));
|
|
g_free(fname);
|
|
return FALSE;
|
|
}
|
|
|
|
error = NULL;
|
|
valid_record = TRUE;
|
|
colnum = 0;
|
|
g_free(record);
|
|
record = g_malloc0(uat->record_size);
|
|
linenum = 1;
|
|
|
|
BEGIN START_OF_LINE;
|
|
DUMP(fname);
|
|
g_free(fname); /* we're done with the file name now */
|
|
|
|
yylex();
|
|
fclose(yyin);
|
|
yyrestart(NULL);
|
|
|
|
uat->changed = FALSE;
|
|
uat->loaded = TRUE;
|
|
UAT_UPDATE(uat);
|
|
|
|
if (error) {
|
|
*errx = error;
|
|
return FALSE;
|
|
}
|
|
|
|
if (uat->post_update_cb)
|
|
uat->post_update_cb();
|
|
|
|
*errx = NULL;
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
uat_load_str(uat_t *uat_in, char *entry, char **err)
|
|
{
|
|
uat = uat_in;
|
|
parse_str = g_strdup_printf("%s\n", entry); /* Records must end with a newline */
|
|
parse_str_pos = 0;
|
|
yyin = NULL;
|
|
|
|
error = NULL;
|
|
valid_record = TRUE;
|
|
colnum = 0;
|
|
g_free(record);
|
|
record = g_malloc0(uat->record_size);
|
|
linenum = 1;
|
|
|
|
BEGIN START_OF_LINE;
|
|
DUMP(entry);
|
|
|
|
yylex();
|
|
yyrestart(NULL);
|
|
g_free(parse_str);
|
|
parse_str = NULL;
|
|
|
|
uat->changed = TRUE;
|
|
uat->loaded = TRUE;
|
|
UAT_UPDATE(uat);
|
|
|
|
if (error) {
|
|
*err = error;
|
|
return FALSE;
|
|
}
|
|
|
|
if (uat->post_update_cb)
|
|
uat->post_update_cb();
|
|
|
|
*err = NULL;
|
|
return TRUE;
|
|
}
|