source: branches/client-1.6/src/debug.c

/* 
   Netdrive Samba client plugin
   logging functions
   Copyright (C) netlabs.org 2003-2009

   This program 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 2 of the License, or
   (at your option) any later version.
   
   This program 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 this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  
*/

#define INCL_DOSERRORS
#define INCL_DOS
#include <os2emx.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/stat.h>
#include "nversion.h"

int debuglevel = 9; // we set it to 9, so we get all messages
char logfile[_MAX_PATH +1]  = {0};
char debugfile[_MAX_PATH +1] = {0};
char logfilename[] = "log.ndpsmb";
BOOL do_logging = FALSE;
BOOL firstLogLine = TRUE;

int debuglvl(int level)
{
        return (level <= debuglevel) ? 1 : 0;
}

BOOL writeLog()
{
        return do_logging;
}

void debuglocal(int level, const char * fmt, ...)
{
        FILE *f=NULL;
        struct stat filestat;

        // if the file ndpsmb.dbg is around we write a logfile
        if (!debugfile[0])
        {
           strncpy(debugfile, getenv("ETC"), 2);
           strncat(debugfile, "\\", sizeof(debugfile) - strlen(debugfile) -1);
           strncat(debugfile, "ndpsmb.dbg", sizeof(debugfile) - strlen(debugfile) -1);
        } /* endif */
        
        if (stat(debugfile, &filestat) !=0)
           return;

        //we create the logfile variable only once
        if (!logfile[0])
        {
                char *env = getenv("LOGFILES");
                if (env != NULL)
                {
                   strncpy(logfile, env, sizeof(logfile) -1);
                   strncat(logfile, "\\", sizeof(logfile) - strlen(logfile) -1);
                   strncat(logfile, logfilename, sizeof(logfile) - strlen(logfile) -1);  
                }
                else
                {
                   strncpy(logfile, logfilename, sizeof(logfile) -1);
                }
                // set the samba logging stuff
                do_logging = TRUE;
        } /* endif */

        if (!debuglvl(level))
        {
                return;
        }
        do
        {
                struct timeval tv;
                char buf[80] = {0};
                va_list args;
                if (logfile[0])
                {
                        f = fopen(logfile, "a");
                        if (!f)
                        {
                                break;
                        }
                }
                else
                {
                        f = stdout;
                }

                // in the first log line we write our version of the client
                if (firstLogLine)
                {
                   fprintf(f, "Samba client %s build %s based on %s\n", VERSION, BUILD, smbwrp_getVersion());
                   firstLogLine = FALSE;
                }

                gettimeofday(&tv, NULL);
                strftime(buf,sizeof(buf)-1,"%Y/%m/%d %H:%M:%S", localtime((time_t *)&tv.tv_sec));
                fprintf(f, "%s.%d: %d %d: ", buf, tv.tv_usec / 10000, level, (long)_gettid());
                va_start(args, fmt);
                vfprintf(f, fmt, args);
                va_end(args);
                if (logfile)
                {
                        fclose(f);
                }
        }
        while (0);
}