trunk/src/log.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2014 ircd-hybrid development team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 */

/*! \file log.c
 * \brief Logger functions.
 * \version $Id$
 */

#include "stdinc.h"
#include "log.h"
#include "irc_string.h"
#include "ircd.h"
#include "conf.h"
#include "s_misc.h"


static struct
{
  char path[HYB_PATH_MAX + 1];
  size_t size;
  FILE *file;
} log_type_table[LOG_TYPE_LAST];


void
log_set_file(enum log_type type, size_t size, const char *path)
{
  strlcpy(log_type_table[type].path, path, sizeof(log_type_table[type].path));
  log_type_table[type].size = size;

  if (type == LOG_TYPE_IRCD)
    log_type_table[type].file = fopen(log_type_table[type].path, "a");
}

void
log_del_all(void)
{
  unsigned int type = 0;

  while (++type < LOG_TYPE_LAST)
    log_type_table[type].path[0] = '\0';
}

void
log_reopen_all(void)
{
  unsigned int type = 0;

  while (++type < LOG_TYPE_LAST)
  {
    if (log_type_table[type].file)
    {
      fclose(log_type_table[type].file);
      log_type_table[type].file = NULL;
    }

    if (log_type_table[type].path[0])
      log_type_table[type].file = fopen(log_type_table[type].path, "a");
  }
}

static int
log_exceed_size(unsigned int type)
{
  struct stat sb;

  if (!log_type_table[type].size)
    return 0;

  if (stat(log_type_table[type].path, &sb) < 0)
    return -1;

  return (size_t)sb.st_size > log_type_table[type].size;
}

static void
log_write(enum log_type type, const char *message)
{
  char buf[IRCD_BUFSIZE] = "";

  strftime(buf, sizeof(buf), "[%FT%H:%M:%S%z]", localtime(&CurrentTime));

  fprintf(log_type_table[type].file, "%s %s\n", buf, message);
  fflush(log_type_table[type].file);
}

void
ilog(enum log_type type, const char *fmt, ...)
{
  char buf[LOG_BUFSIZE] = "";
  va_list args;

  if (!log_type_table[type].file || !ConfigLoggingEntry.use_logging)
    return;

  va_start(args, fmt);
  vsnprintf(buf, sizeof(buf), fmt, args);
  va_end(args);

  log_write(type, buf);

  if (log_exceed_size(type) <= 0)
    return;

  snprintf(buf, sizeof(buf), "Rotating logfile %s",
           log_type_table[type].path);
  log_write(type, buf);

  fclose(log_type_table[type].file);
  log_type_table[type].file = NULL;

  snprintf(buf, sizeof(buf), "%s.old", log_type_table[type].path);
  unlink(buf);
  rename(log_type_table[type].path, buf);

  log_set_file(type, log_type_table[type].size, log_type_table[type].path);
  log_type_table[type].file = fopen(log_type_table[type].path, "a");
}
Revision:	3215
Committed:	Tue Mar 25 19:23:15 2014 UTC (11 years, 5 months ago) by michael
Content type:	text/x-csrc
File size:	3240 byte(s)
Log Message:	- Fixed some comments; cleaned up style here and there
#	User	Rev	Content
1	adx	30	/*
2	michael	2916	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	2916	* Copyright (c) 1997-2014 ircd-hybrid development team
5	adx	30	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19			* USA
20			*/
21
22	michael	2916	/*! \file log.c
23			* \brief Logger functions.
24			* \version $Id$
25			*/
26
27	adx	30	#include "stdinc.h"
28	michael	1309	#include "log.h"
29	adx	30	#include "irc_string.h"
30			#include "ircd.h"
31	michael	1309	#include "conf.h"
32	michael	1319	#include "s_misc.h"
33	adx	30
34
35	michael	2916	static struct
36			{
37	michael	1737	char path[HYB_PATH_MAX + 1];
38	michael	1247	size_t size;
39	michael	1325	FILE *file;
40	michael	1247	} log_type_table[LOG_TYPE_LAST];
41	adx	30
42
43	michael	1831	void
44			log_set_file(enum log_type type, size_t size, const char *path)
45	adx	30	{
46	michael	1247	strlcpy(log_type_table[type].path, path, sizeof(log_type_table[type].path));
47	michael	1248	log_type_table[type].size = size;
48	adx	30
49	michael	1831	if (type == LOG_TYPE_IRCD)
50			log_type_table[type].file = fopen(log_type_table[type].path, "a");
51	michael	1247	}
52
53			void
54	michael	1831	log_del_all(void)
55	adx	30	{
56	michael	1247	unsigned int type = 0;
57	adx	30
58	michael	1247	while (++type < LOG_TYPE_LAST)
59	michael	1831	log_type_table[type].path[0] = '\0';
60			}
61
62			void
63			log_reopen_all(void)
64			{
65			unsigned int type = 0;
66
67			while (++type < LOG_TYPE_LAST)
68	adx	30	{
69	michael	1831	if (log_type_table[type].file)
70			{
71			fclose(log_type_table[type].file);
72			log_type_table[type].file = NULL;
73			}
74	michael	1247
75	michael	1831	if (log_type_table[type].path[0])
76			log_type_table[type].file = fopen(log_type_table[type].path, "a");
77	adx	30	}
78			}
79
80	michael	1248	static int
81			log_exceed_size(unsigned int type)
82			{
83			struct stat sb;
84
85			if (!log_type_table[type].size)
86			return 0;
87
88			if (stat(log_type_table[type].path, &sb) < 0)
89			return -1;
90
91			return (size_t)sb.st_size > log_type_table[type].size;
92			}
93
94	michael	2916	static void
95	michael	1327	log_write(enum log_type type, const char *message)
96	adx	30	{
97	michael	3215	char buf[IRCD_BUFSIZE] = "";
98	adx	30
99	michael	1327	strftime(buf, sizeof(buf), "[%FT%H:%M:%S%z]", localtime(&CurrentTime));
100	michael	1001
101	michael	1327	fprintf(log_type_table[type].file, "%s %s\n", buf, message);
102	michael	1325	fflush(log_type_table[type].file);
103	adx	30	}
104	michael	1325
105	adx	30	void
106	michael	1319	ilog(enum log_type type, const char *fmt, ...)
107	adx	30	{
108	michael	3215	char buf[LOG_BUFSIZE] = "";
109	adx	30	va_list args;
110
111	michael	1327	if (!log_type_table[type].file \|\| !ConfigLoggingEntry.use_logging)
112	michael	1319	return;
113	adx	30
114			va_start(args, fmt);
115	michael	1086	vsnprintf(buf, sizeof(buf), fmt, args);
116	adx	30	va_end(args);
117
118	michael	1327	log_write(type, buf);
119	michael	1248
120	michael	1327	if (log_exceed_size(type) <= 0)
121			return;
122	michael	1248
123	michael	1327	snprintf(buf, sizeof(buf), "Rotating logfile %s",
124			log_type_table[type].path);
125			log_write(type, buf);
126	michael	1248
127	michael	1327	fclose(log_type_table[type].file);
128			log_type_table[type].file = NULL;
129
130			snprintf(buf, sizeof(buf), "%s.old", log_type_table[type].path);
131			unlink(buf);
132			rename(log_type_table[type].path, buf);
133
134	michael	1831	log_set_file(type, log_type_table[type].size, log_type_table[type].path);
135			log_type_table[type].file = fopen(log_type_table[type].path, "a");
136	michael	1248	}