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ex-opt.c

/*
 *  ex-opt.c
 *  
 * Extension command line options
 *
 * (c) 2006, Luis E. Garcia Ontanon <luis.ontanon@gmail.com>
 *
 * $Id: ex-opt.c 20804 2007-02-13 20:57:22Z sfisher $
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * 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. 
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <glib.h>
#include "ex-opt.h"
#include <epan/ws_strsplit.h>

static GHashTable* ex_opts = NULL;

gboolean ex_opt_add(const gchar* optarg) {
    gchar** splitted;
    
    if (!ex_opts) 
        ex_opts = g_hash_table_new(g_str_hash,g_str_equal);
    
    splitted = g_strsplit(optarg,":",2);
    
    if (splitted[0] && splitted[1]) {
        GPtrArray* this_opts = g_hash_table_lookup(ex_opts,splitted[0]);
        
        if (this_opts) {
            g_ptr_array_add(this_opts,splitted[1]);
            g_free(splitted[0]);
        } else {
            this_opts = g_ptr_array_new();
            g_ptr_array_add(this_opts,splitted[1]);
            g_hash_table_insert(ex_opts,splitted[0],this_opts);
        }
        
        g_free(splitted);
        
        return TRUE;
    } else {
        g_strfreev(splitted);
        return FALSE;
    }
}

gint ex_opt_count(const gchar* key) {
    GPtrArray* this_opts;
    
    if (! ex_opts)
        return 0;
    
    this_opts = g_hash_table_lookup(ex_opts,key);
    
    if (this_opts) {
        return this_opts->len;
    } else {
        return 0;
    }
}

const gchar* ex_opt_get_nth(const gchar* key, guint index) {
    GPtrArray* this_opts;
    
    if (! ex_opts)
        return 0;
    
    this_opts = g_hash_table_lookup(ex_opts,key);
    
    if (this_opts) {
        if (this_opts->len > index) {
            return g_ptr_array_index(this_opts,index);
        } else {
            /* XXX: assert? */
            return NULL;
        }
    } else {
        return NULL;
    }
    
}

extern const gchar* ex_opt_get_next(const gchar* key) {
    GPtrArray* this_opts;
    
    if (! ex_opts)
        return 0;
    
    this_opts = g_hash_table_lookup(ex_opts,key);
    
    if (this_opts) {
        if (this_opts->len)
            return g_ptr_array_remove_index(this_opts,0);
        else 
            return NULL;
    } else {
        return NULL;
    }
}


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