LCOV - code coverage report
Current view: top level - snaplogger - syslog_appender.cpp (source / functions) Hit Total Coverage
Test: coverage.info Lines: 2 57 3.5 %
Date: 2019-08-13 00:35:33 Functions: 5 13 38.5 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :  * License:
       3             :  *    Copyright (c) 2013-2019  Made to Order Software Corp.  All Rights Reserved
       4             :  *
       5             :  *    https://snapwebsites.org/
       6             :  *    contact@m2osw.com
       7             :  *
       8             :  *    This program is free software; you can redistribute it and/or modify
       9             :  *    it under the terms of the GNU General Public License as published by
      10             :  *    the Free Software Foundation; either version 2 of the License, or
      11             :  *    (at your option) any later version.
      12             :  *
      13             :  *    This program is distributed in the hope that it will be useful,
      14             :  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      16             :  *    GNU General Public License for more details.
      17             :  *
      18             :  *    You should have received a copy of the GNU General Public License along
      19             :  *    with this program; if not, write to the Free Software Foundation, Inc.,
      20             :  *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
      21             :  *
      22             :  * Authors:
      23             :  *    Alexis Wilke   alexis@m2osw.com
      24             :  */
      25             : 
      26             : /** \file
      27             :  * \brief Appenders are used to append data to somewhere.
      28             :  *
      29             :  * This file declares the base appender class.
      30             :  */
      31             : 
      32             : // self
      33             : //
      34             : #include    "snaplogger/syslog_appender.h"
      35             : 
      36             : 
      37             : // C++ lib
      38             : //
      39             : #include    <iostream>
      40             : 
      41             : 
      42             : // C lib
      43             : //
      44             : #include    <syslog.h>
      45             : 
      46             : 
      47             : // last include
      48             : //
      49             : #include    <snapdev/poison.h>
      50             : 
      51             : 
      52             : 
      53             : namespace snaplogger
      54             : {
      55             : 
      56             : 
      57             : 
      58             : namespace
      59             : {
      60             : 
      61             : 
      62           8 : APPENDER_FACTORY(syslog);
      63             : 
      64             : 
      65             : struct facility_by_name
      66             : {
      67             :     char const * const  f_name = nullptr;
      68             :     int const           f_facility = LOG_USER;
      69             : };
      70             : 
      71             : 
      72             : constexpr facility_by_name g_facility_by_name[] =
      73             : {
      74             :     { "auth",       LOG_AUTH     },
      75             :     { "authpriv",   LOG_AUTHPRIV },
      76             :     { "cron",       LOG_CRON     },
      77             :     { "daemon",     LOG_DAEMON   },
      78             :     { "ftp",        LOG_FTP      },
      79             :     { "kern",       LOG_KERN     },
      80             :     { "local0",     LOG_LOCAL0   },
      81             :     { "local1",     LOG_LOCAL1   },
      82             :     { "local2",     LOG_LOCAL2   },
      83             :     { "local3",     LOG_LOCAL3   },
      84             :     { "local4",     LOG_LOCAL4   },
      85             :     { "local5",     LOG_LOCAL5   },
      86             :     { "local6",     LOG_LOCAL6   },
      87             :     { "local7",     LOG_LOCAL7   },
      88             :     { "lpr",        LOG_LPR      },
      89             :     { "mail",       LOG_MAIL     },
      90             :     { "news",       LOG_NEWS     },
      91             :     { "syslog",     LOG_SYSLOG   },
      92             :     { "user",       LOG_USER     },
      93             :     { "uucp",       LOG_UUCP     }
      94             : };
      95             : 
      96             : 
      97             : 
      98             : 
      99             : }
     100             : // no name namespace
     101             : 
     102             : 
     103             : 
     104           0 : syslog_appender::syslog_appender(std::string const name)
     105           0 :     : appender(name, "syslog")
     106             : {
     107           0 : }
     108             : 
     109             : 
     110           0 : syslog_appender::~syslog_appender()
     111             : {
     112           0 : }
     113             : 
     114             : 
     115           0 : bool syslog_appender::unique() const
     116             : {
     117           0 :     return true;
     118             : }
     119             : 
     120             : 
     121           0 : void syslog_appender::set_config(advgetopt::getopt const & opts)
     122             : {
     123           0 :     closelog();
     124             : 
     125           0 :     appender::set_config(opts);
     126             : 
     127             :     // FACILITY
     128             :     //
     129           0 :     int facility(LOG_USER);
     130           0 :     std::string const facility_field(get_name() + "::facility");
     131           0 :     if(opts.is_defined(facility_field))
     132             :     {
     133           0 :         std::string const facility_name(opts.get_string(facility_field));
     134           0 :         int i(0);
     135           0 :         int j(sizeof(g_facility_by_name) / sizeof(g_facility_by_name[0]));
     136           0 :         while(i < j)
     137             :         {
     138           0 :             int const p(i + (j - i) / 2);
     139           0 :             int const r(facility_name.compare(g_facility_by_name[p].f_name));
     140           0 :             if(r == 0)
     141             :             {
     142           0 :                 facility = g_facility_by_name[p].f_facility;
     143           0 :                 break;
     144             :             }
     145           0 :             if(r < 0)
     146             :             {
     147           0 :                 i = p + 1;
     148             :             }
     149             :             else // if(r > 0)
     150             :             {
     151           0 :                 j = p;
     152             :             }
     153             :         }
     154             :     }
     155             : 
     156             :     // IDENTITY
     157             :     //
     158           0 :     std::string const identity_field(get_name() + "::identity");
     159           0 :     if(opts.is_defined(identity_field))
     160             :     {
     161           0 :         f_identity = opts.get_string(identity_field);
     162             :     }
     163             : 
     164             :     // FALLBACK TO CONSOLE
     165             :     //
     166           0 :     int options(LOG_NDELAY | LOG_PID);
     167           0 :     std::string const fallback_to_console_field(get_name() + "::fallback_to_console");
     168           0 :     if(opts.is_defined(fallback_to_console_field))
     169             :     {
     170           0 :         if(opts.get_string(fallback_to_console_field) == "true")
     171             :         {
     172           0 :             options |= LOG_CONS;
     173             :         }
     174             :     }
     175             : 
     176             :     // open the log immediately
     177             :     //
     178           0 :     openlog(f_identity.c_str(), options, facility);
     179           0 : }
     180             : 
     181             : 
     182           0 : void syslog_appender::process_message(message const & msg, std::string const & formatted_message)
     183             : {
     184           0 :     int priority(LOG_INFO);
     185           0 :     severity_t const sev(msg.get_severity());
     186           0 :     if(sev <= severity_t::SEVERITY_DEBUG)
     187             :     {
     188           0 :         priority = LOG_DEBUG;
     189             :     }
     190           0 :     else if(sev <= severity_t::SEVERITY_INFORMATION)
     191             :     {
     192           0 :         priority = LOG_INFO;
     193             :     }
     194           0 :     else if(sev <= severity_t::SEVERITY_MINOR)
     195             :     {
     196           0 :         priority = LOG_NOTICE;
     197             :     }
     198           0 :     else if(sev <= severity_t::SEVERITY_MAJOR)
     199             :     {
     200           0 :         priority = LOG_WARNING;
     201             :     }
     202           0 :     else if(sev <= severity_t::SEVERITY_ERROR)
     203             :     {
     204           0 :         priority = LOG_ERR;
     205             :     }
     206           0 :     else if(sev <= severity_t::SEVERITY_CRITICAL)
     207             :     {
     208           0 :         priority = LOG_CRIT;
     209             :     }
     210           0 :     else if(sev <= severity_t::SEVERITY_ALERT)
     211             :     {
     212           0 :         priority = LOG_ALERT;
     213             :     }
     214             :     else
     215             :     {
     216           0 :         priority = LOG_EMERG;
     217             :     }
     218             : 
     219           0 :     syslog(priority, "%s", formatted_message.c_str());
     220           0 : }
     221             : 
     222             : 
     223             : 
     224             : 
     225             : 
     226           6 : } // snaplogger namespace
     227             : // vim: ts=4 sw=4 et

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