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/*---------------------------------------------------------------------------
Implementation for the server log.
Is a bit tricky. Writes 1000 lines to a file, than increments
and opens a new one. Wraps arounf after 3. This is a compromise
between error tracking and use of diskspace.
Mark Koennecke, October 1996
Copyright:
Labor fuer Neutronenstreuung
Paul Scherrer Institut
CH-5423 Villigen-PSI
The authors hereby grant permission to use, copy, modify, distribute,
and license this software and its documentation for any purpose, provided
that existing copyright notices are retained in all copies and that this
notice is included verbatim in any distributions. No written agreement,
license, or royalty fee is required for any of the authorized uses.
Modifications to this software may be copyrighted by their authors
and need not follow the licensing terms described here, provided that
the new terms are clearly indicated on the first page of each file where
they apply.
IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. THIS SOFTWARE
IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
MODIFICATIONS.
-----------------------------------------------------------------------------*/
#include "fortify.h"
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <ctype.h>
#include "ifile.h"
#include "conman.h"
#include "servlog.h"
#include "network.h"
/* define this, if you do not want a server log
#define NOLOG 1
*/
/* -------------------------------------------------------------------------
The server log output can be captured by a client. In order to implement
this the following code is necessary.
*/
typedef struct __LogLog{
SConnection *pCon;
OutCode iOut;
int iAllFlag;
struct __LogLog *pNext;
struct __LogLog *pPrevious;
} CaptureEntry, *pCaptureEntry;
static pCaptureEntry pCapture = NULL;
/*------------------------------------------------------------------------*/
int KillCapture(SConnection *pCon)
{
pCaptureEntry pCurrent, pTemp;
/* find first */
pCurrent = pCapture;
while(pCurrent != NULL)
{
if(pCon == pCurrent->pCon)
{
/* relink */
if(pCurrent->pPrevious)
{
pCurrent->pPrevious->pNext = pCurrent->pNext;
}
else
{
pCapture = pCurrent->pNext;
}
if(pCurrent->pNext)
{
pCurrent->pNext->pPrevious = pCurrent->pPrevious;
}
pTemp = pCurrent->pNext;
/* get rid of pCurrent */
free(pCurrent);
pCurrent = pTemp;
}
else
{
pCurrent = pCurrent->pNext;
}
}
return 1;
}
/* ------------------------------------------------------------------------
the command function:
Syntax:
Kill kills all logging
Log OutCode starts loggin OutCode events
All starts logging all events
-------------------------------------------------------------------------- */
#include "outcode.c" /* for pCode */
int LogCapture(SConnection *pCon, SicsInterp *pSics, void *pData,
int argc, char *argv[])
{
pCaptureEntry pNew = NULL;
char pBueffel[512];
int i;
/* check no af args */
if(argc < 2)
{
sprintf(pBueffel,"Insufficient number of argumenst to %s",argv[0]);
SCWrite(pCon,pBueffel,eError);
return 0;
}
argtolower(argc,argv);
/* Branch according to argv[1] */
if(strcmp(argv[1],"kill") == 0 )
{
KillCapture(pCon);
return 1;
}
else if(strcmp(argv[1],"all") == 0)
{
pNew = (pCaptureEntry)malloc(sizeof(CaptureEntry));
if(!pNew)
{
SICSLogWrite("Out of memory in LogCapture",eInternal);
return 0;
}
if(pCapture)
{
pCapture->pPrevious = pNew;
}
pNew->pPrevious = NULL;
pNew->pNext = pCapture;
pCapture = pNew;
pNew->iAllFlag = 1;
pNew->pCon = pCon;
return 1;
}
else
{
/* must be outcode, try find it */
i = 0;
while(pCode[i] != NULL)
{
if(strcmp(argv[1],pCode[i]) == 0)
{
break;
}
i++;
}
if(i > iNoCodes)
{
sprintf(pBueffel,"OutPutCode %s not recognized in %s",argv[1],
argv[0]);
SCWrite(pCon,pBueffel,eError);
return 0;
}
/* create a new one */
pNew = (pCaptureEntry)malloc(sizeof(CaptureEntry));
if(!pNew)
{
SICSLogWrite("Out of memory in LogCapture",eInternal);
return 0;
}
if(pCapture)
{
pCapture->pPrevious = pNew;
}
pNew->pPrevious = NULL;
pNew->pNext = pCapture;
pCapture = pNew;
pNew->iAllFlag = 0;
pNew->pCon = pCon;
pNew->iOut = i;
return 1;
}
return 0;
}
/*--------------------------------------------------------------------------*/
static int HasLineFeed(char *pText)
{
int i;
for(i = strlen(pText); i > 0; i--)
{
if(pText[i] == '\n')
{
return 1;
}
if(isalpha(pText[i]))
{
return 0;
}
}
return 1;
}
/*---------------------------------------------------------------------------*/
#define MAXLOG 10000
#define MAXFILES 20
static FILE *fLogFile = NULL;
static int iFile = 0;
static int iLineCount = 0;
void SICSLogWrite(char *pText, OutCode eOut)
{
char pFile[256];
char *pChar = NULL;
pCaptureEntry pCurrent;
char pBueffel[256];
#ifdef NOLOG
return ;
#endif
if(fLogFile == NULL) /* first time of */
{
/* no options: startup or serious trouble, print to stdout*/
if(!pSICSOptions)
{
printf(" %s \n",pText);
return;
}
/* get the filename */
pChar = IFindOption(pSICSOptions,"LogFileBaseName");
if(!pChar)
{
strcpy(pFile,"server");
}
else
{
strcpy(pFile,pChar);
}
sprintf(pFile,"%s%2.2d.log",pFile, iFile);
fLogFile = fopen(pFile,"w");
if(!fLogFile)
{
printf("ERROR: cannot open logfile %s for writing\n",
pFile);
exit(1);
}
}
/* switch file if to many lines */
if(iLineCount == MAXLOG)
{
fclose(fLogFile);
fLogFile = NULL;
iFile++;
if(iFile >= MAXFILES)
{
iFile = 0;
}
pChar = IFindOption(pSICSOptions,"LogFileBaseName");
if(!pChar)
{
strcpy(pFile,"server");
}
else
{
strcpy(pFile,pChar);
}
sprintf(pFile,"%s%1d.log",pFile, iFile);
fLogFile = fopen(pFile,"w");
assert(fLogFile);
iLineCount = 0;
}
fprintf(fLogFile,"%s\n",pText);
fflush(fLogFile);
iLineCount++;
/* do all captured as well */
pCurrent = pCapture;
while(pCurrent)
{
if( (pCurrent->iOut == eOut) || (pCurrent->iAllFlag == 1) )
{
NETWrite(pCurrent->pCon->pSock,pText,strlen(pText));
}
pCurrent = pCurrent->pNext;
}
}