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115 lines
4.4 KiB
C
115 lines
4.4 KiB
C
/***************************************************************************
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* nsock_log.c -- nsock logging infrastructure. *
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* *
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***********************IMPORTANT NSOCK LICENSE TERMS***********************
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*
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* The nsock parallel socket event library is (C) 1999-2025 Nmap Software LLC
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* This library is free software; you may redistribute and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; Version 2. This guarantees your right to use, modify, and
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* redistribute this software under certain conditions. If this license is
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* unacceptable to you, Nmap Software LLC may be willing to sell alternative
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* licenses (contact sales@nmap.com ).
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*
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* As a special exception to the GPL terms, Nmap Software LLC grants permission
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* to link the code of this program with any version of the OpenSSL library
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* which is distributed under a license identical to that listed in the included
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* docs/licenses/OpenSSL.txt file, and distribute linked combinations including
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* the two. You must obey the GNU GPL in all respects for all of the code used
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* other than OpenSSL. If you modify this file, you may extend this exception to
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* your version of the file, but you are not obligated to do so.
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*
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* If you received these files with a written license agreement stating terms
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* other than the (GPL) terms above, then that alternative license agreement
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* takes precedence over this comment.
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*
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* Source is provided to this software because we believe users have a right to
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* know exactly what a program is going to do before they run it. This also
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* allows you to audit the software for security holes.
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*
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* Source code also allows you to port Nmap to new platforms, fix bugs, and add
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* new features. You are highly encouraged to send your changes to the
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* dev@nmap.org mailing list for possible incorporation into the main
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* distribution. By sending these changes to Fyodor or one of the Insecure.Org
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* development mailing lists, or checking them into the Nmap source code
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* repository, it is understood (unless you specify otherwise) that you are
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* offering the Nmap Project (Nmap Software LLC) the unlimited, non-exclusive
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* right to reuse, modify, and relicense the code. Nmap will always be available
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* Open Source, but this is important because the inability to relicense code
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* has caused devastating problems for other Free Software projects (such as KDE
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* and NASM). We also occasionally relicense the code to third parties as
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* discussed above. If you wish to specify special license conditions of your
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* contributions, just say so when you send them.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License v2.0 for more
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* details (http://www.gnu.org/licenses/gpl-2.0.html).
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*
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***************************************************************************/
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/* $Id$ */
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <assert.h>
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#include "nsock_internal.h"
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#include "nsock_log.h"
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static void nsock_stderr_logger(const struct nsock_log_rec *rec);
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nsock_loglevel_t NsockLogLevel = NSOCK_LOG_ERROR;
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nsock_logger_t NsockLogger = nsock_stderr_logger;
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void nsock_set_log_function(nsock_logger_t logger) {
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if (logger != NULL)
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NsockLogger = logger;
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else
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NsockLogger = nsock_stderr_logger;
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nsock_log_debug("Registered external logging function: %p", NsockLogger);
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}
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nsock_loglevel_t nsock_get_loglevel(void) {
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return NsockLogLevel;
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}
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void nsock_set_loglevel(nsock_loglevel_t loglevel) {
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NsockLogLevel = loglevel;
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nsock_log_debug("Set log level to %s", nsock_loglevel2str(loglevel));
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}
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void nsock_stderr_logger(const struct nsock_log_rec *rec) {
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fprintf(stderr, "libnsock %s(): %s\n", rec->func, rec->msg);
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}
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void __nsock_log_internal(nsock_loglevel_t loglevel, const char *file, int line,
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const char *func, const char *format, ...) {
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struct nsock_log_rec rec;
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va_list args;
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int rc;
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va_start(args, format);
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rec.level = loglevel;
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rec.time = nsock_tod;
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rec.file = file;
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rec.line = line;
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rec.func = func;
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rc = vasprintf(&rec.msg, format, args);
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if (rc >= 0) {
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NsockLogger(&rec);
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free(rec.msg);
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}
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va_end(args);
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}
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