1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/* smfile.c
* This is a strgen module for the traditional file format.
*
* Format generated:
* "%TIMESTAMP:::date-rfc3339% %HOSTNAME% %syslogtag%%msg:::sp-if-no-1st-sp%%msg:::drop-last-lf%\n"
* Note that this is the same as smtradfile.c, except that we do have a RFC3339 timestamp. However,
* we have copied over the code from there, it is too simple to go through all the hassle
* of having a single code base.
*
* NOTE: read comments in module-template.h to understand how this file
* works!
*
* File begun on 2010-06-01 by RGerhards
*
* Copyright 2010 Rainer Gerhards and Adiscon GmbH.
*
* This file is part of rsyslog.
*
* Rsyslog 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 3 of the License, or
* (at your option) any later version.
*
* Rsyslog 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 Rsyslog. If not, see <http://www.gnu.org/licenses/>.
*
* A copy of the GPL can be found in the file "COPYING" in this distribution.
*/
#include "config.h"
#include "rsyslog.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include "syslogd.h"
#include "conf.h"
#include "syslogd-types.h"
#include "template.h"
#include "msg.h"
#include "module-template.h"
#include "unicode-helper.h"
MODULE_TYPE_STRGEN
STRGEN_NAME("RSYSLOG_FileFormat")
/* internal structures
*/
DEF_SMOD_STATIC_DATA
/* config data */
/* This strgen tries to minimize the amount of reallocs be first obtaining pointers to all strings
* needed (including their length) and then calculating the actual space required. So when we
* finally copy, we know exactly what we need. So we do at most one alloc.
*/
BEGINstrgen
register int iBuf;
uchar *pTimeStamp;
size_t lenTimeStamp;
uchar *pHOSTNAME;
size_t lenHOSTNAME;
uchar *pTAG;
int lenTAG;
uchar *pMSG;
size_t lenMSG;
size_t lenTotal;
CODESTARTstrgen
/* first obtain all strings and their length (if not fixed) */
pTimeStamp = (uchar*) getTimeReported(pMsg, tplFmtRFC3339Date);
lenTimeStamp = ustrlen(pTimeStamp);
pHOSTNAME = (uchar*) getHOSTNAME(pMsg);
lenHOSTNAME = getHOSTNAMELen(pMsg);
getTAG(pMsg, &pTAG, &lenTAG);
pMSG = getMSG(pMsg);
lenMSG = getMSGLen(pMsg);
/* calculate len, constants for spaces and similar fixed strings */
lenTotal = lenTimeStamp + 1 + lenHOSTNAME + 1 + lenTAG + lenMSG + 2;
if(pMSG[0] != ' ')
++lenTotal; /* then we need to introduce one additional space */
/* now make sure buffer is large enough */
if(lenTotal >= *pLenBuf)
CHKiRet(ExtendBuf(ppBuf, pLenBuf, lenTotal));
/* and concatenate the resulting string */
memcpy(*ppBuf, pTimeStamp, lenTimeStamp);
iBuf = lenTimeStamp;
*(*ppBuf + iBuf++) = ' ';
memcpy(*ppBuf + iBuf, pHOSTNAME, lenHOSTNAME);
iBuf += lenHOSTNAME;
*(*ppBuf + iBuf++) = ' ';
memcpy(*ppBuf + iBuf, pTAG, lenTAG);
iBuf += lenTAG;
if(pMSG[0] != ' ')
*(*ppBuf + iBuf++) = ' ';
memcpy(*ppBuf + iBuf, pMSG, lenMSG);
iBuf += lenMSG;
/* trailer */
*(*ppBuf + iBuf++) = '\n';
*(*ppBuf + iBuf) = '\0';
finalize_it:
ENDstrgen
BEGINmodExit
CODESTARTmodExit
ENDmodExit
BEGINqueryEtryPt
CODESTARTqueryEtryPt
CODEqueryEtryPt_STD_SMOD_QUERIES
ENDqueryEtryPt
BEGINmodInit(smfile)
CODESTARTmodInit
*ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */
CODEmodInit_QueryRegCFSLineHdlr
dbgprintf("rsyslog standard file format strgen init called, compiled with version %s\n", VERSION);
ENDmodInit
|
