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Diffstat (limited to 'tools/omdiscard.c')
| -rw-r--r-- | tools/omdiscard.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/tools/omdiscard.c b/tools/omdiscard.c new file mode 100644 index 0000000..e1a85dc --- /dev/null +++ b/tools/omdiscard.c @@ -0,0 +1,158 @@ +/* omdiscard.c + * This is the implementation of the built-in discard output module. + * + * NOTE: read comments in module-template.h to understand how this file + * works! + * + * File begun on 2007-07-24 by RGerhards + * + * Copyright 2007-2013 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 <stdio.h> +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include "syslogd.h" +#include "syslogd-types.h" +#include "omdiscard.h" +#include "module-template.h" +#include "errmsg.h" + +MODULE_TYPE_OUTPUT +MODULE_TYPE_NOKEEP + +/* internal structures + */ +DEF_OMOD_STATIC_DATA + +typedef struct _instanceData { + EMPTY_STRUCT +} instanceData; + +typedef struct wrkrInstanceData { + instanceData *pData; +} wrkrInstanceData_t; + +/* we do not need a createInstance()! +BEGINcreateInstance +CODESTARTcreateInstance +ENDcreateInstance +*/ + + +BEGINcreateWrkrInstance +CODESTARTcreateWrkrInstance +ENDcreateWrkrInstance + + +BEGINdbgPrintInstInfo +CODESTARTdbgPrintInstInfo + /* do nothing */ +ENDdbgPrintInstInfo + + +BEGINisCompatibleWithFeature +CODESTARTisCompatibleWithFeature + /* we are not compatible with repeated msg reduction feature, so do not allow it */ +ENDisCompatibleWithFeature + + +BEGINtryResume +CODESTARTtryResume +ENDtryResume + +BEGINdoAction_NoStrings +CODESTARTdoAction + (void)pMsgData; /* Suppress compiler warning on unused var */ + dbgprintf("\n"); + iRet = RS_RET_DISCARDMSG; +ENDdoAction + + +BEGINfreeInstance +CODESTARTfreeInstance + /* we do not have instance data, so we do not need to + * do anything here. -- rgerhards, 2007-07-25 + */ +ENDfreeInstance + + +BEGINfreeWrkrInstance +CODESTARTfreeWrkrInstance +ENDfreeWrkrInstance + + +BEGINparseSelectorAct +CODESTARTparseSelectorAct +CODE_STD_STRING_REQUESTparseSelectorAct(0) + pData = NULL; /* this action does not have any instance data */ + p = *pp; + + if(*p == '~') { + dbgprintf("discard\n"); + LogMsg(0, RS_RET_DEPRECATED, LOG_WARNING, + "warning: ~ action is deprecated, consider " + "using the 'stop' statement instead"); + } else { + iRet = RS_RET_CONFLINE_UNPROCESSED; + } +/* we do not use the macro + * CODE_STD_FINALIZERparseSelectorAct + * here as this causes a Coverity ID "false positive" (CID 185431). + * We don't see an issue with using the copy&pasted code as it is unlikly + * to change for this (outdated) module. + */ +finalize_it: ATTR_UNUSED; /* semi-colon needed according to gcc doc! */ + if(iRet == RS_RET_OK || iRet == RS_RET_OK_WARN || iRet == RS_RET_SUSPENDED) { + *ppModData = pData; + *pp = p; + } else { + /* cleanup, we failed */ + if(*ppOMSR != NULL) { + OMSRdestruct(*ppOMSR); + *ppOMSR = NULL; + } + } +/* END modified macro text */ +ENDparseSelectorAct + + +BEGINmodExit +CODESTARTmodExit +ENDmodExit + + +BEGINqueryEtryPt +CODESTARTqueryEtryPt +CODEqueryEtryPt_STD_OMOD_QUERIES +CODEqueryEtryPt_STD_OMOD8_QUERIES +ENDqueryEtryPt + + +BEGINmodInit(Discard) +CODESTARTmodInit + *ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */ +CODEmodInit_QueryRegCFSLineHdlr +ENDmodInit +/* + * vi:set ai: + */ |