trunk/src/log.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  log.c: Logger functions.
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  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
 *
 *  $Id$
 */

#include "stdinc.h"

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


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


int
log_add_file(enum log_type type, size_t size, const char *path)
{
  if (log_type_table[type].file)
    fclose(log_type_table[type].file);

  strlcpy(log_type_table[type].path, path, sizeof(log_type_table[type].path));
  log_type_table[type].size = size;

  return (log_type_table[type].file = fopen(path, "a")) != NULL;
}

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

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

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

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 
write_log(enum log_type type, const char *message)
{
  char buf[LOG_BUFSIZE];
  size_t nbytes = 0;
  struct tm *lt = localtime(&CurrentTime);

  nbytes = strftime(buf, sizeof(buf), "[%FT%H:%M:%S%z] ", lt);
  snprintf(buf+nbytes, sizeof(buf)-nbytes, "%s\n", message);

  fputs(buf, log_type_table[type].file);
  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 == NULL)
    return;

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

  if (ConfigLoggingEntry.use_logging)
  {
    write_log(type, buf);

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

    snprintf(buf, sizeof(buf), "Rotating logfile %s",
             log_type_table[type].path);
    write_log(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_add_file(type, log_type_table[type].size, log_type_table[type].path);
  }
}
Revision:	1325
Committed:	Sat Mar 31 10:29:02 2012 UTC (13 years, 4 months ago) by michael
Content type:	text/x-csrc
Original Path:	*ircd-hybrid-8/src/log.c*
File size:	3091 byte(s)
Log Message:	- Get rid of fileio.c. Replace some ircsprintf() with snprintf() while on it
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3	michael	1309	* log.c: Logger functions.
4	adx	30	*
5			* Copyright (C) 2002 by the past and present ircd coders, and others.
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* This program is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20			* USA
21			*
22	knight	31	* $Id$
23	adx	30	*/
24
25			#include "stdinc.h"
26
27	michael	1309	#include "log.h"
28	adx	30	#include "irc_string.h"
29			#include "ircd.h"
30	michael	1309	#include "conf.h"
31	michael	1248	#include "send.h"
32	michael	1319	#include "s_misc.h"
33	adx	30
34
35	michael	1247	static struct {
36			char path[PATH_MAX + 1];
37			size_t size;
38	michael	1325	FILE *file;
39	michael	1247	} log_type_table[LOG_TYPE_LAST];
40	adx	30
41
42	michael	1247	int
43	michael	1319	log_add_file(enum log_type type, size_t size, const char *path)
44	adx	30	{
45	michael	1247	if (log_type_table[type].file)
46	michael	1325	fclose(log_type_table[type].file);
47	adx	30
48	michael	1247	strlcpy(log_type_table[type].path, path, sizeof(log_type_table[type].path));
49	michael	1248	log_type_table[type].size = size;
50	adx	30
51	michael	1325	return (log_type_table[type].file = fopen(path, "a")) != NULL;
52	michael	1247	}
53
54			void
55			log_close_all(void)
56	adx	30	{
57	michael	1247	unsigned int type = 0;
58	adx	30
59	michael	1247	while (++type < LOG_TYPE_LAST)
60	adx	30	{
61	michael	1247	if (log_type_table[type].file == NULL)
62			continue;
63
64	michael	1325	fclose(log_type_table[type].file);
65	michael	1248	log_type_table[type].file = NULL;
66	adx	30	}
67			}
68
69	michael	1248	static int
70			log_exceed_size(unsigned int type)
71			{
72			struct stat sb;
73
74			if (!log_type_table[type].size)
75			return 0;
76
77			if (stat(log_type_table[type].path, &sb) < 0)
78			return -1;
79
80			return (size_t)sb.st_size > log_type_table[type].size;
81			}
82
83
84	adx	30	static void
85	michael	1319	write_log(enum log_type type, const char *message)
86	adx	30	{
87			char buf[LOG_BUFSIZE];
88			size_t nbytes = 0;
89	michael	1324	struct tm *lt = localtime(&CurrentTime);
90	adx	30
91	michael	1324	nbytes = strftime(buf, sizeof(buf), "[%FT%H:%M:%S%z] ", lt);
92	michael	1325	snprintf(buf+nbytes, sizeof(buf)-nbytes, "%s\n", message);
93	michael	1001
94	michael	1325	fputs(buf, log_type_table[type].file);
95			fflush(log_type_table[type].file);
96	adx	30	}
97	michael	1325
98	adx	30	void
99	michael	1319	ilog(enum log_type type, const char *fmt, ...)
100	adx	30	{
101			char buf[LOG_BUFSIZE];
102			va_list args;
103
104	michael	1319	if (log_type_table[type].file == NULL)
105			return;
106	adx	30
107			va_start(args, fmt);
108	michael	1086	vsnprintf(buf, sizeof(buf), fmt, args);
109	adx	30	va_end(args);
110
111			if (ConfigLoggingEntry.use_logging)
112	michael	1248	{
113	michael	1247	write_log(type, buf);
114	michael	1248
115			if (log_exceed_size(type) <= 0)
116			return;
117
118			snprintf(buf, sizeof(buf), "Rotating logfile %s",
119			log_type_table[type].path);
120			write_log(type, buf);
121	michael	1325	fclose(log_type_table[type].file);
122	michael	1248	log_type_table[type].file = NULL;
123
124			snprintf(buf, sizeof(buf), "%s.old", log_type_table[type].path);
125			unlink(buf);
126			rename(log_type_table[type].path, buf);
127			log_add_file(type, log_type_table[type].size, log_type_table[type].path);
128			}
129			}