lib/log.c

   1 /* log.c
   2    Logging facilities for displaying information on screen, as well as
   3    (optional) storing it to a file and transmitting it over the network.
   4
   5    Part of the swftools package.
   6
   7    Copyright (c) 2001 Matthias Kramm <kramm@quiss.org>
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  22
  23 #ifdef __NT__
  24 #include "stdafx.h"
  25 #include <string.h>
  26 #include <stdlib.h>
  27 #include <malloc.h>
  28 #if _MSC_VER > 1000
  29 #pragma once
  30 #endif // _MSC_VER > 1000
  31 #else
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <stdarg.h>
  35 #include <string.h>
  36 #include <unistd.h>
  37 #endif
  38
  39 #include "log.h"
  40
  41 int screenloglevel = 1;
  42 static int fileloglevel = -1;
  43 static int maxloglevel = 1;
  44 static FILE *logFile = 0;
  45
  46 void initLog(char* pLogName, int fileloglevel, char* s00, char* s01, int s02, int screenlevel)
  47 {
  48    screenloglevel = screenlevel;
  49    fileloglevel = fileloglevel;
  50
  51    maxloglevel=screenloglevel;
  52    if(fileloglevel>maxloglevel && pLogName)
  53        maxloglevel=fileloglevel;
  54
  55    logFile = NULL;
  56
  57    if (pLogName && fileloglevel>=0)
  58     logFile = fopen(pLogName, "a+");
  59 }
  60
  61 void exitLog()
  62 {
  63    // close file
  64    if(logFile != NULL)
  65      fclose(logFile);
  66 }
  67
  68 static char * logimportance[]= {"Fatal","Error","Warning","Notice","Verbose","Debug","Trace"};
  69 static int loglevels=7;
  70 static char * logimportance2[]= {"       ","FATAL  ","ERROR  ","WARNING","NOTICE ","VERBOSE","DEBUG  ", "TRACE  "};
  71
  72 static inline void log(char* logString)
  73 {
  74    char timebuffer[32];
  75    char* logBuffer;
  76    char dbuffer[9];
  77    char tbuffer[9];
  78    int level;
  79    char*lt;
  80    char*gt;
  81    int l;
  82
  83    logBuffer = (char*)malloc (strlen(logString) + 24 + 15);
  84 #ifndef __NT__
  85    {
  86      /*time_t t = time(0);
  87      tm*t2 = localtime(t);
  88      strftime(dbuffer, 8, "%m %d", t2);
  89      strftime(tbuffer, 8, "%m %d", t2);
  90      dbuffer[0]=0; //FIXME
  91      tbuffer[0]=0;*/
  92      time_t t = time(0);
  93      char* a = ctime(&t);
  94      int l = strlen(a);
  95      while(a[l-1] == 13 || a[l-1] == 10)
  96        l--;
  97      a[l]=0;
  98      sprintf(timebuffer, "%s", a);
  99    }
 100 #else
 101    _strdate( dbuffer );
 102    _strtime( tbuffer );
 103    sprintf(timebuffer, "%s - %s",dbuffer,tbuffer);
 104 #endif
 105
 106    // search for <level> field
 107    level = -1;
 108    lt=strchr(logString, '<');
 109    gt=strchr(logString, '>');
 110    if(lt && gt && lt<gt)
 111    {
 112        int t;
 113        for(t=0;t<loglevels;t++)
 114        {
 115 #ifndef __NT__
 116            if(!strncasecmp(lt+1,logimportance[t],strlen(logimportance[t])))
 117 #else
 118            if(!strnicmp(lt+1,logimportance[t],strlen(logimportance[t])))
 119 #endif
 120            {
 121                logString = gt+1;
 122                while(logString[0]==' ') logString ++;
 123                level = t;
 124                break;
 125            }
 126        }
 127    }
 128
 129 //   sprintf(logBuffer, "%s: %s %s", timebuffer, logimportance2[level + 1],logString);
 130    sprintf(logBuffer, "%s %s", logimportance2[level + 1],logString);
 131
 132    // we always do exactly one newline.
 133
 134    l=strlen(logBuffer)-1;
 135    while((logBuffer[l]==13 || logBuffer[l]==10) && l>=0)
 136    {
 137        logBuffer[l]=0;
 138        l--;
 139    }
 140
 141    if (level <= screenloglevel)
 142    {
 143        printf("%s\n", logBuffer);
 144        fflush(stdout);
 145    }
 146
 147    if (level <= fileloglevel)
 148    {
 149        if (logFile != NULL)
 150        {
 151           fprintf(logFile, "%s\n", logBuffer);
 152           fflush(logFile);
 153        }
 154    }
 155
 156    free (logBuffer);
 157 }
 158
 159 void msg(const char* format, ...)
 160 {
 161     char buf[1024];
 162         va_list arglist;
 163         va_start(arglist, format);
 164
 165     /* speed up hack */
 166     if(format[0]=='<') {
 167         char*z = "fewnvdt";
 168         char*x = strchr(z,format[1]);
 169         if(x && (x-z)>maxloglevel)
 170                 return;
 171     }
 172
 173     vsprintf(buf, format, arglist);
 174         va_end(arglist);
 175     strcat(buf, "\n");
 176     log(buf);
 177 }
 178