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clear_security_tab.c

/* GADMIN-PROFTPD - An easy to use GTK+ frontend for the ProFTPD standalone server.
 * Copyright (C) 2001 - 2008 Magnus Loef <magnus-swe@telia.com> 
 *
 * 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 3 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 <gtk/gtk.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include "gettext.h"
#include "widgets.h"
#include "allocate.h"
#include "clear_security_tab.h"
#include "populate_security_tab.h"


void clear_security_tab(struct w *widgets)
{
    /* Clears the proftpd entries in the security log */
    FILE *fp;
    long file_size;
    char *old_buffy, *new_buffy;

    /* Default to the configured security log */
    gchar *secure_log;
    secure_log = g_strdup_printf("%s", SECURE_LOG);

    /* Use the server settings security log if its set */
    if((fp=fopen(PROFTPD_CONF, "r"))==NULL) 
    {
       /* Do nothing */
    }
    else
      {
       fseek(fp, 0, SEEK_END);
       file_size = ftell(fp);
       rewind(fp);
       old_buffy = allocate(file_size+1024);

       if( file_size > 1 )
       while(fgets(old_buffy, file_size, fp)!=NULL)
       {
          if( ! strstr(old_buffy, "SystemLog ") || strstr(old_buffy, "#") )
            continue;
          
          if( strlen(old_buffy) < 12 )
            continue;
          
          /* We have a valid security logfile (doesnt have to exist yet) */
          g_free(secure_log);
          secure_log = g_strdup_printf("%s", &old_buffy[10]);
          if( secure_log[strlen(secure_log)-1]=='\n' )
            secure_log[strlen(secure_log)-1]='\0';
          break;
      }
      free(old_buffy);
     }



    if((fp=fopen(secure_log, "r"))==NULL)
    {
      return;
    }

    fseek(fp, 0, SEEK_END);
    file_size = ftell(fp);
    rewind(fp);
    
    old_buffy = allocate(file_size+1024);
    new_buffy = allocate(file_size+1024);

    /* Get all lines that doesnt have the string proftpd in them */
    if( file_size > 1 )
    while(fgets(old_buffy, file_size, fp)!=NULL)
    {
      if( strstr(old_buffy, "proftpd") )
        continue;
        
      strcat(new_buffy, old_buffy);
    }
    free(old_buffy);
    fclose(fp);
    
    if((fp=fopen(secure_log, "w+"))==NULL)
    {
      free(new_buffy);
      return;
    }
    fputs(new_buffy, fp);    
    fclose(fp);    
    
    free(new_buffy);
    populate_security(widgets);
}

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