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/* |
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* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
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* |
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* Copyright (c) 1997-2021 ircd-hybrid development team |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General 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 |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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* USA |
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*/ |
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|
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/*! \file log.c |
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* \brief Logger functions. |
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* \version $Id$ |
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*/ |
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|
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#include "stdinc.h" |
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#include "log.h" |
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#include "conf.h" |
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#include "misc.h" |
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#include "memory.h" |
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|
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|
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static struct LogFile log_type_table[LOG_TYPE_LAST]; |
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|
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|
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void |
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log_set_file(enum log_type type, size_t size, const char *path) |
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{ |
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struct LogFile *log = &log_type_table[type]; |
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|
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if (log->path) |
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xfree(log->path); |
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|
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log->path = xstrdup(path); |
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log->size = size; |
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|
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if (type == LOG_TYPE_IRCD) |
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log->file = fopen(log->path, "a"); |
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} |
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|
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void |
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log_free(struct LogFile *log) |
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{ |
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xfree(log->path); |
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log->path = NULL; |
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} |
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|
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void |
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log_reopen(struct LogFile *log) |
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{ |
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if (log->file) |
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{ |
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fclose(log->file); |
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log->file = NULL; |
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} |
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|
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if (log->path) |
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log->file = fopen(log->path, "a"); |
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} |
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|
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void |
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log_iterate(void (*func)(struct LogFile *)) |
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{ |
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/* type = 1 to skip LOG_TYPE_IRCD */ |
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for (unsigned int type = 1; type < LOG_TYPE_LAST; ++type) |
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func(&log_type_table[type]); |
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} |
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|
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static bool |
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log_exceed_size(struct LogFile *log) |
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{ |
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struct stat sb; |
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|
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if (log->size == 0) |
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return false; |
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|
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if (stat(log->path, &sb) < 0) |
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return false; |
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|
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return (size_t)sb.st_size > log->size; |
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} |
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|
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static void |
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log_write(struct LogFile *log, const char *message) |
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{ |
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fprintf(log->file, "[%s] %s\n", date_iso8601(0), message); |
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fflush(log->file); |
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} |
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|
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void |
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ilog(enum log_type type, const char *fmt, ...) |
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{ |
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struct LogFile *log = &log_type_table[type]; |
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char buf[LOG_BUFSIZE] = ""; |
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va_list args; |
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|
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if (log->file == NULL || ConfigLog.use_logging == 0) |
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return; |
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|
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va_start(args, fmt); |
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vsnprintf(buf, sizeof(buf), fmt, args); |
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va_end(args); |
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|
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log_write(log, buf); |
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|
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if (log_exceed_size(log) == false) |
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return; |
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|
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snprintf(buf, sizeof(buf), "Rotating logfile %s", log->path); |
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log_write(log, buf); |
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|
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fclose(log->file); |
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log->file = NULL; |
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|
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snprintf(buf, sizeof(buf), "%s.old", log->path); |
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unlink(buf); |
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rename(log->path, buf); |
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|
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log->file = fopen(log->path, "a"); |
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} |
