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
136
137
|
/* 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 2010-2014 Rainer Gerhards and Adiscon GmbH.
*
* This file is part of rsyslog.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* -or-
* see COPYING.ASL20 in the source distribution
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#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
MODULE_TYPE_NOKEEP
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, LOCK_MUTEX);
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 >= iparam->lenBuf)
CHKiRet(ExtendBuf(iparam, lenTotal));
/* and concatenate the resulting string */
memcpy(iparam->param, pTimeStamp, lenTimeStamp);
iBuf = lenTimeStamp;
iparam->param[iBuf++] = ' ';
memcpy(iparam->param + iBuf, pHOSTNAME, lenHOSTNAME);
iBuf += lenHOSTNAME;
iparam->param[iBuf++] = ' ';
memcpy(iparam->param + iBuf, pTAG, lenTAG);
iBuf += lenTAG;
if(pMSG[0] != ' ')
iparam->param[iBuf++] = ' ';
memcpy(iparam->param + iBuf, pMSG, lenMSG);
iBuf += lenMSG;
/* trailer */
iparam->param[iBuf++] = '\n';
iparam->param[iBuf] = '\0';
iparam->lenStr = lenTotal - 1; /* do not count \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
|
