124 lines
2.3 KiB
C
124 lines
2.3 KiB
C
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/*
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* Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "imcv.h"
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#include "utils.h"
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#include <debug.h>
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#include <syslog.h>
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/**
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* Reference count for IMC/IMV instances
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*/
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refcount_t ref = 0;
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/**
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* Global configuration of libimcv dbg function
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*/
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static int debug_level = 3;
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static bool stderr_quiet = FALSE;
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/**
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* libimvc dbg function
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*/
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static void libimcv_dbg(debug_t group, level_t level, char *fmt, ...)
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{
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int priority = LOG_INFO;
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char buffer[8192];
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char *current = buffer, *next;
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va_list args;
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if (level <= debug_level)
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{
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if (!stderr_quiet)
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{
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va_start(args, fmt);
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vfprintf(stderr, fmt, args);
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fprintf(stderr, "\n");
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va_end(args);
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}
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/* write in memory buffer first */
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va_start(args, fmt);
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vsnprintf(buffer, sizeof(buffer), fmt, args);
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va_end(args);
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/* do a syslog with every line */
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while (current)
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{
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next = strchr(current, '\n');
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if (next)
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{
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*(next++) = '\0';
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}
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syslog(priority, "%s\n", current);
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current = next;
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}
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}
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}
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/**
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* Described in header.
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*/
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bool libimcv_init(void)
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{
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/* initialize libstrongswan library only once */
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if (lib)
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{
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/* did main program initialize libstrongswan? */
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if (ref == 0)
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{
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ref_get(&ref);
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}
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}
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else
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{
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/* we are the first to initialize libstrongswan */
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if (!library_init(NULL))
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{
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return FALSE;
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}
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if (!lib->plugins->load(lib->plugins, NULL, "random"))
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{
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library_deinit();
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return FALSE;
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}
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/* enable libimcv debugging hook */
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dbg = libimcv_dbg;
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openlog("imcv", 0, LOG_DAEMON);
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DBG1(DBG_LIB, "libimcv initialized");
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}
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ref_get(&ref);
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return TRUE;
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}
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/**
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* Described in header.
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*/
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void libimcv_deinit(void)
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{
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if (ref_put(&ref))
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{
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DBG1(DBG_LIB, "libimcv terminated");
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library_deinit();
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}
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}
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