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: 2021-06-04 12:34:06 Functions: 5 13 38.5 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : // Copyright (c) 2013-2021  Made to Order Software Corp.  All Rights Reserved
       2             : //
       3             : // https://snapwebsites.org/project/snaplogger
       4             : // contact@m2osw.com
       5             : //
       6             : // This program is free software; you can redistribute it and/or modify
       7             : // it under the terms of the GNU General Public License as published by
       8             : // the Free Software Foundation; either version 2 of the License, or
       9             : // (at your option) any later version.
      10             : //
      11             : // This program is distributed in the hope that it will be useful,
      12             : // but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14             : // GNU General Public License for more details.
      15             : //
      16             : // You should have received a copy of the GNU General Public License along
      17             : // with this program; if not, write to the Free Software Foundation, Inc.,
      18             : // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
      19             : 
      20             : /** \file
      21             :  * \brief Appenders are used to append data to somewhere.
      22             :  *
      23             :  * This file declares the base appender class.
      24             :  */
      25             : 
      26             : // self
      27             : //
      28             : #include    "snaplogger/syslog_appender.h"
      29             : 
      30             : 
      31             : // C++ lib
      32             : //
      33             : #include    <iostream>
      34             : 
      35             : 
      36             : // C lib
      37             : //
      38             : #include    <syslog.h>
      39             : 
      40             : 
      41             : // last include
      42             : //
      43             : #include    <snapdev/poison.h>
      44             : 
      45             : 
      46             : 
      47             : namespace snaplogger
      48             : {
      49             : 
      50             : 
      51             : 
      52             : namespace
      53             : {
      54             : 
      55             : 
      56           8 : APPENDER_FACTORY(syslog);
      57             : 
      58             : 
      59             : struct facility_by_name
      60             : {
      61             :     char const * const  f_name = nullptr;
      62             :     int const           f_facility = LOG_USER;
      63             : };
      64             : 
      65             : 
      66             : constexpr facility_by_name g_facility_by_name[] =
      67             : {
      68             :     { "auth",       LOG_AUTH     },
      69             :     { "authpriv",   LOG_AUTHPRIV },
      70             :     { "cron",       LOG_CRON     },
      71             :     { "daemon",     LOG_DAEMON   },
      72             :     { "ftp",        LOG_FTP      },
      73             :     { "kern",       LOG_KERN     },
      74             :     { "local0",     LOG_LOCAL0   },
      75             :     { "local1",     LOG_LOCAL1   },
      76             :     { "local2",     LOG_LOCAL2   },
      77             :     { "local3",     LOG_LOCAL3   },
      78             :     { "local4",     LOG_LOCAL4   },
      79             :     { "local5",     LOG_LOCAL5   },
      80             :     { "local6",     LOG_LOCAL6   },
      81             :     { "local7",     LOG_LOCAL7   },
      82             :     { "lpr",        LOG_LPR      },
      83             :     { "mail",       LOG_MAIL     },
      84             :     { "news",       LOG_NEWS     },
      85             :     { "syslog",     LOG_SYSLOG   },
      86             :     { "user",       LOG_USER     },
      87             :     { "uucp",       LOG_UUCP     }
      88             : };
      89             : 
      90             : 
      91             : 
      92             : 
      93             : }
      94             : // no name namespace
      95             : 
      96             : 
      97             : 
      98           0 : syslog_appender::syslog_appender(std::string const name)
      99           0 :     : appender(name, "syslog")
     100             : {
     101           0 : }
     102             : 
     103             : 
     104           0 : syslog_appender::~syslog_appender()
     105             : {
     106           0 : }
     107             : 
     108             : 
     109           0 : bool syslog_appender::unique() const
     110             : {
     111           0 :     return true;
     112             : }
     113             : 
     114             : 
     115           0 : void syslog_appender::set_config(advgetopt::getopt const & opts)
     116             : {
     117           0 :     closelog();
     118             : 
     119           0 :     appender::set_config(opts);
     120             : 
     121             :     // FACILITY
     122             :     //
     123           0 :     int facility(LOG_USER);
     124           0 :     std::string const facility_field(get_name() + "::facility");
     125           0 :     if(opts.is_defined(facility_field))
     126             :     {
     127           0 :         std::string const facility_name(opts.get_string(facility_field));
     128           0 :         int i(0);
     129           0 :         int j(sizeof(g_facility_by_name) / sizeof(g_facility_by_name[0]));
     130           0 :         while(i < j)
     131             :         {
     132           0 :             int const p(i + (j - i) / 2);
     133           0 :             int const r(facility_name.compare(g_facility_by_name[p].f_name));
     134           0 :             if(r == 0)
     135             :             {
     136           0 :                 facility = g_facility_by_name[p].f_facility;
     137           0 :                 break;
     138             :             }
     139           0 :             if(r < 0)
     140             :             {
     141           0 :                 i = p + 1;
     142             :             }
     143             :             else // if(r > 0)
     144             :             {
     145           0 :                 j = p;
     146             :             }
     147             :         }
     148             :     }
     149             : 
     150             :     // IDENTITY
     151             :     //
     152           0 :     std::string const identity_field(get_name() + "::identity");
     153           0 :     if(opts.is_defined(identity_field))
     154             :     {
     155           0 :         f_identity = opts.get_string(identity_field);
     156             :     }
     157             : 
     158             :     // FALLBACK TO CONSOLE
     159             :     //
     160           0 :     int options(LOG_NDELAY | LOG_PID);
     161           0 :     std::string const fallback_to_console_field(get_name() + "::fallback_to_console");
     162           0 :     if(opts.is_defined(fallback_to_console_field))
     163             :     {
     164           0 :         if(opts.get_string(fallback_to_console_field) == "true")
     165             :         {
     166           0 :             options |= LOG_CONS;
     167             :         }
     168             :     }
     169             : 
     170             :     // open the log immediately
     171             :     //
     172           0 :     openlog(f_identity.c_str(), options, facility);
     173           0 : }
     174             : 
     175             : 
     176           0 : void syslog_appender::process_message(message const & msg, std::string const & formatted_message)
     177             : {
     178           0 :     int priority(LOG_INFO);
     179           0 :     severity_t const sev(msg.get_severity());
     180           0 :     if(sev <= severity_t::SEVERITY_DEBUG)
     181             :     {
     182           0 :         priority = LOG_DEBUG;
     183             :     }
     184           0 :     else if(sev <= severity_t::SEVERITY_INFORMATION)
     185             :     {
     186           0 :         priority = LOG_INFO;
     187             :     }
     188           0 :     else if(sev <= severity_t::SEVERITY_MINOR)
     189             :     {
     190           0 :         priority = LOG_NOTICE;
     191             :     }
     192           0 :     else if(sev <= severity_t::SEVERITY_MAJOR)
     193             :     {
     194           0 :         priority = LOG_WARNING;
     195             :     }
     196           0 :     else if(sev <= severity_t::SEVERITY_ERROR)
     197             :     {
     198           0 :         priority = LOG_ERR;
     199             :     }
     200           0 :     else if(sev <= severity_t::SEVERITY_CRITICAL)
     201             :     {
     202           0 :         priority = LOG_CRIT;
     203             :     }
     204           0 :     else if(sev <= severity_t::SEVERITY_ALERT)
     205             :     {
     206           0 :         priority = LOG_ALERT;
     207             :     }
     208             :     else
     209             :     {
     210           0 :         priority = LOG_EMERG;
     211             :     }
     212             : 
     213           0 :     syslog(priority, "%s", formatted_message.c_str());
     214           0 : }
     215             : 
     216             : 
     217             : 
     218             : 
     219             : 
     220           6 : } // snaplogger namespace
     221             : // vim: ts=4 sw=4 et

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