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/* |
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slog.C -- logging |
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Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> |
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|
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This file is part of GVPE. |
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|
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GVPE 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 3 of the License, or (at your |
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option) any later version. |
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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 |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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Public License for more details. |
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|
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You should have received a copy of the GNU General Public License along |
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with this program; if not, see <http://www.gnu.org/licenses/>. |
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|
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Additional permission under GNU GPL version 3 section 7 |
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|
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If you modify this Program, or any covered work, by linking or |
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combining it with the OpenSSL project's OpenSSL library (or a modified |
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version of that library), containing parts covered by the terms of the |
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OpenSSL or SSLeay licenses, the licensors of this Program grant you |
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additional permission to convey the resulting work. Corresponding |
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Source for a non-source form of such a combination shall include the |
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source code for the parts of OpenSSL used as well as that of the |
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covered work. |
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*/ |
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|
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#include <cstdarg> |
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#include <cstdio> |
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#include <cstring> |
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#include <cstdlib> |
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|
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#include <unistd.h> |
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#include <syslog.h> |
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|
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#include "slog.h" |
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|
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loglevel log_level = L_INFO; |
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const char *log_identity = ""; |
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static int logto = LOGTO_STDERR; |
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|
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loglevel |
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string_to_loglevel (const char *s) |
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{ |
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if (!strcmp (s, "noise")) return L_NOISE; |
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if (!strcmp (s, "trace")) return L_TRACE; |
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if (!strcmp (s, "debug")) return L_DEBUG; |
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if (!strcmp (s, "info")) return L_INFO; |
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if (!strcmp (s, "notice")) return L_NOTICE; |
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if (!strcmp (s, "warn")) return L_WARN; |
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if (!strcmp (s, "error")) return L_ERR; |
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if (!strcmp (s, "critical")) return L_CRIT; |
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|
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return L_NONE; |
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} |
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|
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void |
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log_to (int mask) |
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{ |
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if (logto & LOGTO_SYSLOG) |
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closelog (); |
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|
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logto = mask; |
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|
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if (logto & LOGTO_SYSLOG) |
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openlog (log_identity, LOG_CONS | LOG_PID, LOG_DAEMON); |
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} |
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|
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void |
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slog_ (const loglevel l, const char *m, ...) |
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{ |
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if (l >= log_level) |
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{ |
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va_list ap; |
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va_start (ap, m); |
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char *msg = new char [2048]; |
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|
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vsnprintf (msg, 2048, m, ap); |
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|
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if (logto & LOGTO_SYSLOG) |
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{ |
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int lvl = l == L_TRACE ? LOG_DEBUG |
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: l == L_DEBUG ? LOG_DEBUG |
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: l == L_INFO ? LOG_INFO |
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: l == L_NOTICE ? LOG_NOTICE |
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: l == L_ERR ? LOG_ERR |
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: l == L_CRIT ? LOG_CRIT |
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: LOG_ERR; |
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|
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syslog (lvl, "%s", msg); |
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} |
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|
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if (logto & LOGTO_STDERR) |
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{ |
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write (2, msg, strlen (msg)); |
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write (2, "\n", 1); |
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} |
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|
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delete [] msg; |
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} |
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} |
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|
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void |
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fatal (const char *m) |
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{ |
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slog (L_CRIT, m); |
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exit (EXIT_FAILURE); |
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} |
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|
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void |
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require_failed (const char *file, int line, const char *info) |
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{ |
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slog (L_CRIT, "FATAL: This program encountered a SHOULD NOT HAPPEN condition and will exit:"); |
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slog (L_CRIT, "FATAL+ %s:%d '%s' is false", file, line, info); |
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slog (L_CRIT, "FATAL+ This might indicates a bug in this program, a bug in your libraries,"); |
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slog (L_CRIT, "FATAL+ your system setup or operating system. Or it might indicate a very"); |
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slog (L_CRIT, "FATAL+ unusual, unanticipated operating condition, library version mismatch"); |
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slog (L_CRIT, "FATAL+ or similar problem. If it's not obvious to you what was causing it,"); |
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slog (L_CRIT, "FATAL+ then please report this to the program author(s)."); |
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exit (126); |
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} |
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|
