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/* tap-protocolinfo.c
* protohierstat 2002 Ronnie Sahlberg
*
* $Id: tap-protocolinfo.c,v 1.1 2002/11/04 12:10:59 sahlberg Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* This module provides Protocol Column Info tap for tethereal */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include <string.h>
#include "epan/epan_dissect.h"
#include "epan/column-utils.h"
#include "epan/proto.h"
#include "tap.h"
#include "register.h"
typedef struct _pci_t {
char *filter;
int hf_index;
} pci_t;
static int
protocolinfo_packet(void *prs, packet_info *pinfo, epan_dissect_t *edt, void *dummy _U_)
{
pci_t *rs=prs;
GPtrArray *gp;
guint i;
char *str;
gp=proto_get_finfo_ptr_array(edt->tree, rs->hf_index);
if(!gp){
return 0;
}
for(i=0;i<gp->len;i++){
str=proto_alloc_dfilter_string(gp->pdata[i], NULL);
col_append_fstr(pinfo->cinfo, COL_INFO, " %s",str);
g_free(str);
}
return 0;
}
static void
protocolinfo_init(char *optarg)
{
pci_t *rs;
char *field=NULL;
char *filter=NULL;
header_field_info *hfi;
if(!strncmp("proto,colinfo,",optarg,14)){
filter=optarg+14;
field=strchr(filter,',');
if(field){
field+=1; /* skip the ',' */
}
}
if(!field){
fprintf(stderr, "tethereal: invalid \"-z proto,colinfo,<filter>,<field>\" argument\n");
exit(1);
}
hfi=proto_registrar_get_byname(field);
if(!hfi){
fprintf(stderr, "tethereal: Field \"%s\" does not exist.\n", field);
exit(1);
}
rs=g_malloc(sizeof(pci_t));
rs->hf_index=hfi->id;
if((field-filter)>1){
rs->filter=g_malloc(field-filter);
strncpy(rs->filter,filter,(field-filter)-1);
rs->filter[(field-filter)-1]=0;
} else {
rs->filter=NULL;
}
if(register_tap_listener("frame", rs, rs->filter, NULL, protocolinfo_packet, NULL)){
/* error, we failed to attach to the tap. clean up */
if(rs->filter){
g_free(rs->filter);
}
g_free(rs);
fprintf(stderr,"tethereal: protocolinfo_init() failed to attach to tap.\n");
exit(1);
}
}
void
register_tap_listener_protocolinfo(void)
{
register_ethereal_tap("proto,colinfo,", protocolinfo_init, NULL, NULL);
}
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