src/libcharon/plugins/android_log/android_log_logger.c

   1 /*
   2  * Copyright (C) 2010-2012 Tobias Brunner
   3  * Hochschule fuer Technik Rapperswil
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  */
  15
  16 #include <string.h>
  17 #include <android/log.h>
  18
  19 #include "android_log_logger.h"
  20
  21 #include <library.h>
  22 #include <daemon.h>
  23 #include <threading/mutex.h>
  24
  25 typedef struct private_android_log_logger_t private_android_log_logger_t;
  26
  27 /**
  28  * Private data of an android_log_logger_t object
  29  */
  30 struct private_android_log_logger_t {
  31
  32         /**
  33          * Public interface
  34          */
  35         android_log_logger_t public;
  36
  37         /**
  38          * logging level
  39          */
  40         int level;
  41
  42         /**
  43          * Mutex to ensure multi-line log messages are not torn apart
  44          */
  45         mutex_t *mutex;
  46 };
  47
  48 METHOD(logger_t, log_, void,
  49         private_android_log_logger_t *this, debug_t group, level_t level,
  50         int thread, ike_sa_t* ike_sa, const char *message)
  51 {
  52         int prio = level > 1 ? ANDROID_LOG_DEBUG : ANDROID_LOG_INFO;
  53         char sgroup[16];
  54         const char *current = message, *next;
  55         snprintf(sgroup, sizeof(sgroup), "%N", debug_names, group);
  56         this->mutex->lock(this->mutex);
  57         while (TRUE)
  58         {       /* log each line separately */
  59                 next = strchr(current, '\n');
  60                 if (next == NULL)
  61                 {
  62                         __android_log_print(prio, "charon", "%.2d[%s] %s\n",
  63                                                                 thread, sgroup, current);
  64                         break;
  65                 }
  66                 __android_log_print(prio, "charon", "%.2d[%s] %.*s\n",
  67                                                         thread, sgroup, (int)(next - current), current);
  68                 current = next + 1;
  69         }
  70         this->mutex->unlock(this->mutex);
  71 }
  72
  73 METHOD(logger_t, get_level, level_t,
  74         private_android_log_logger_t *this, debug_t group)
  75 {
  76         return this->level;
  77 }
  78
  79 METHOD(android_log_logger_t, destroy, void,
  80         private_android_log_logger_t *this)
  81 {
  82         this->mutex->destroy(this->mutex);
  83         free(this);
  84 }
  85
  86 /**
  87  * Described in header.
  88  */
  89 android_log_logger_t *android_log_logger_create()
  90 {
  91         private_android_log_logger_t *this;
  92
  93         INIT(this,
  94                 .public = {
  95                         .logger = {
  96                                 .log = _log_,
  97                                 .get_level = _get_level,
  98                         },
  99                         .destroy = _destroy,
 100                 },
 101                 .mutex = mutex_create(MUTEX_TYPE_DEFAULT),
 102                 .level = lib->settings->get_int(lib->settings,
 103                                                         "%s.plugins.android_log.loglevel", 1, charon->name),
 104         );
 105
 106         return &this->public;
 107 }
 108