315 lines
8.8 KiB
C
315 lines
8.8 KiB
C
/****************************************************************************
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* This file is part of the project AqHome.
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* AqHome (c) by 2023 Martin Preuss, all rights reserved.
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*
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* The license for this file can be found in the file COPYING which you
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* should have received along with this file.
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****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "./init.h"
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#include "./aqhome_data_p.h"
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#include "aqhome/ipc/endpoint_ipc.h"
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#include <gwenhywfar/gwenhywfar.h>
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#include <gwenhywfar/args.h>
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#include <gwenhywfar/debug.h>
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#include <gwenhywfar/endpoint_tcpd.h>
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#include <gwenhywfar/endpoint_msgio.h>
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#include <gwenhywfar/directory.h>
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif
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#include <unistd.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <string.h>
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#include <time.h>
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/* ------------------------------------------------------------------------------------------------
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* defines
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* ------------------------------------------------------------------------------------------------
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*/
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#define I18N(msg) msg
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#define I18S(msg) msg
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/* ------------------------------------------------------------------------------------------------
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* forward declarations
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* ------------------------------------------------------------------------------------------------
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*/
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static int _setupStorage(AQHOME_DATA *aqh, GWEN_DB_NODE *dbArgs);
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static void _setupIpc(AQHOME_DATA *aqh, GWEN_DB_NODE *dbArgs);
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static GWEN_MSG_ENDPOINT *_acceptIpcFn(GWEN_MSG_ENDPOINT *ep, GWEN_SOCKET *sk, const GWEN_INETADDRESS *addr, void *data);
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static int _readArgs(int argc, char **argv, GWEN_DB_NODE *dbArgs);
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static int _createPidFile(const char *pidFilename);
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/* ------------------------------------------------------------------------------------------------
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* implementations
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* ------------------------------------------------------------------------------------------------
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*/
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int AqHomeData_Init(AQHOME_DATA *aqh, int argc, char **argv)
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{
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GWEN_DB_NODE *dbArgs;
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int rv;
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const char *s;
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dbArgs=GWEN_DB_Group_new("args");
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rv=_readArgs(argc, argv, dbArgs);
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if (rv<0) {
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DBG_ERROR(NULL, "Error reading args (%d)", rv);
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return rv;
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}
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aqh->dbArgs=dbArgs;
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aqh->timeout=GWEN_DB_GetIntValue(dbArgs, "timeout", 0, 0);
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s=GWEN_DB_GetCharValue(dbArgs, "pidfile", 0, AQHOME_DATA_DEFAULT_PIDFILE);
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if (s && *s) {
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free(aqh->pidFile);
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aqh->pidFile=strdup(s);
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rv=_createPidFile(s);
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if (rv<0) {
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DBG_ERROR(NULL, "Error creating PID file (%d)", rv);
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return rv;
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}
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}
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rv=_setupStorage(aqh, dbArgs);
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if (rv<0) {
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DBG_INFO(NULL, "here (%d)", rv);
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return rv;
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}
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_setupIpc(aqh, dbArgs);
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return 0;
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}
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int _setupStorage(AQHOME_DATA *aqh, GWEN_DB_NODE *dbArgs)
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{
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const char *dataFolder;
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GWEN_BUFFER *nameBuf;
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AQH_STORAGE *sto;
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int rv;
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dataFolder=GWEN_DB_GetCharValue(dbArgs, "dataFolder", 0, AQHOME_DATA_DEFAULT_DATADIR);
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nameBuf=GWEN_Buffer_new(0, 256, 0, 1);
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GWEN_Buffer_AppendArgs(nameBuf, "%s%s%s", dataFolder, GWEN_DIR_SEPARATOR_S, AQHOME_DATA_STATEFILENAME);
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sto=AQH_Storage_new();
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AQH_Storage_SetStateFile(sto, GWEN_Buffer_GetStart(nameBuf));
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AQH_Storage_SetDataFileFolder(sto, dataFolder);
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GWEN_Buffer_free(nameBuf);
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rv=AQH_Storage_Init(sto);
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if (rv<0) {
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DBG_INFO(NULL, "here (%d)", rv);
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AQH_Storage_free(sto);
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return rv;
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}
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aqh->storage=sto;
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return 0;
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}
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void _setupIpc(AQHOME_DATA *aqh, GWEN_DB_NODE *dbArgs)
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{
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const char *tcpAddress;
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int tcpPort;
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tcpAddress=GWEN_DB_GetCharValue(dbArgs, "tcpAddress", 0, NULL);
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tcpPort=GWEN_DB_GetIntValue(dbArgs, "tcpPort", 0, AQHOME_DATA_DEFAULT_IPC_PORT);
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if (tcpAddress && *tcpAddress && tcpPort) {
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GWEN_MSG_ENDPOINT *ep;
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DBG_INFO(NULL, "Starting TCP service on \"%s\":%d", tcpAddress, tcpPort);
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ep=GWEN_TcpdEndpoint_new(tcpAddress, tcpPort, NULL, 0);
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GWEN_TcpdEndpoint_SetAcceptFn(ep, _acceptIpcFn, aqh);
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aqh->ipcdEndpoint=ep;
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}
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}
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GWEN_MSG_ENDPOINT *_acceptIpcFn(GWEN_MSG_ENDPOINT *ep,
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GWEN_SOCKET *sk,
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const GWEN_INETADDRESS *addr,
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GWEN_UNUSED void *data)
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{
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/* AQHOME_DATA *aqh;
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*
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* aqh=(AQHOME_DATA*) data;
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*/
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DBG_INFO(NULL, "Incoming IPC connection");
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return AQH_IpcEndpoint_CreateIpcTcpServiceForSocket(sk, NULL, 0);
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}
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int _createPidFile(const char *pidFilename)
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{
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FILE *f;
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int pidfd;
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if (remove(pidFilename)==0) {
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DBG_ERROR(0, "Old PID file existed, removed. (Unclean shutdown?)");
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}
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#ifdef HAVE_SYS_STAT_H
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pidfd = open(pidFilename, O_EXCL|O_CREAT|O_WRONLY, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
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if (pidfd < 0) {
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DBG_ERROR(NULL, "Could not create PID file \"%s\" (%s), aborting.", pidFilename, strerror(errno));
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return GWEN_ERROR_IO;
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}
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f = fdopen(pidfd, "w");
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#else /* HAVE_STAT_H */
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f=fopen(pidFilename,"w+");
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#endif /* HAVE_STAT_H */
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/* write pid */
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#ifdef HAVE_GETPID
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fprintf(f,"%d\n",getpid());
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#else
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fprintf(f,"-1\n");
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#endif
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if (fclose(f)) {
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DBG_ERROR(0, "Could not close PID file \"%s\" (%s), aborting.", pidFilename, strerror(errno));
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return GWEN_ERROR_IO;
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}
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return 0;
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}
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int _readArgs(int argc, char **argv, GWEN_DB_NODE *dbArgs)
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{
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int rv;
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const GWEN_ARGS args[]= {
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{
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GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
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GWEN_ArgsType_Char, /* type */
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"tcpAddress", /* name */
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0, /* minnum */
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1, /* maxnum */
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"t", /* short option */
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"tcpaddress", /* long option */
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I18S("Specify the TCP address to listen on (disabled if missing)"),
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I18S("Specify the TCP address to listen on (disabled if missing)")
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},
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{
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GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
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GWEN_ArgsType_Int, /* type */
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"tcpPort", /* name */
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0, /* minnum */
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1, /* maxnum */
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"P", /* short option */
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"tcpport", /* long option */
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I18S("Specify the TCP port to listen on"),
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I18S("Specify the TCP port to listen on")
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},
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{
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GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
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GWEN_ArgsType_Char, /* type */
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"datafolder", /* name */
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0, /* minnum */
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1, /* maxnum */
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NULL, /* short option */
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"datafolder", /* long option */
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I18S("Folder where data files are stored"),
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I18S("Folder where data files are stored")
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},
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{
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GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
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GWEN_ArgsType_Char, /* type */
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"pidfile", /* name */
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0, /* minnum */
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1, /* maxnum */
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"p", /* short option */
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"pidfile", /* long option */
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I18S("Specify the PID file"),
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I18S("Specify the PID file")
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},
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{
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GWEN_ARGS_FLAGS_HAS_ARGUMENT, /* flags */
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GWEN_ArgsType_Int, /* type */
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"timeout", /* name */
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0, /* minnum */
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1, /* maxnum */
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"T", /* short option */
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"timeout", /* long option */
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I18S("Specify timeout in second (default: no timeout)"),
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I18S("Specify timeout in second (default: no timeout)")
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},
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{
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GWEN_ARGS_FLAGS_HELP | GWEN_ARGS_FLAGS_LAST, /* flags */
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GWEN_ArgsType_Int, /* type */
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"help", /* name */
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0, /* minnum */
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0, /* maxnum */
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"h", /* short option */
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"help",
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I18S("Show this help screen."),
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I18S("Show this help screen.")
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}
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};
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rv=GWEN_Args_Check(argc, argv, 1, 0, args, dbArgs);
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if (rv==GWEN_ARGS_RESULT_ERROR) {
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fprintf(stderr, "ERROR: Could not parse arguments main\n");
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return GWEN_ERROR_INVALID;
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}
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else if (rv==GWEN_ARGS_RESULT_HELP) {
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GWEN_BUFFER *ubuf;
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ubuf=GWEN_Buffer_new(0, 1024, 0, 1);
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GWEN_Buffer_AppendArgs(ubuf,
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I18N("This is version %s.\nUsage: %s [OPTIONS]\n\nOptions:\n"),
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AQHOME_VERSION_STRING,
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argv[0]);
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if (GWEN_Args_Usage(args, ubuf, GWEN_ArgsOutType_Txt)) {
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fprintf(stderr, "ERROR: Could not create help string\n");
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return 1;
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}
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GWEN_Buffer_AppendString(ubuf, "\n");
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fprintf(stdout, "%s\n", GWEN_Buffer_GetStart(ubuf));
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GWEN_Buffer_free(ubuf);
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return GWEN_ERROR_CLOSE;
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}
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return 0;
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}
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