lastlog.c

   1 /*
   2  * SARG Squid Analysis Report Generator      http://sarg.sourceforge.net
   3  *                                                            1998, 2014
   4  *
   5  * SARG donations:
   6  *      please look at http://sarg.sourceforge.net/donations.php
   7  * Support:
   8  *     http://sourceforge.net/projects/sarg/forums/forum/363374
   9  * ---------------------------------------------------------------------
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 2 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program; if not, write to the Free Software
  23  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  24  *
  25  */
  26
  27 #include "include/conf.h"
  28 #include "include/defs.h"
  29
  30 void mklastlog(const char *outdir)
  31 {
  32         FILE *fp_in, *fp_ou;
  33         DIR *dirp;
  34         struct dirent *direntp;
  35         char buf[MAXLEN];
  36         char temp[MAXLEN];
  37         char warea[MAXLEN];
  38         char ftime[128];
  39         int  ftot=0;
  40         time_t t;
  41         struct tm *local;
  42         struct stat statb;
  43         int cstatus;
  44         struct getwordstruct gwarea;
  45
  46         if(LastLog <= 0)
  47                 return;
  48
  49         if (snprintf(temp,sizeof(temp),"%s/lastlog1",tmp)>=sizeof(temp)) {
  50                 debuga(_("File name too long: %s/lastlog1\n"),tmp);
  51                 exit(EXIT_FAILURE);
  52         }
  53         if((fp_ou=fopen(temp,"w"))==NULL) {
  54                 debuga(_("(lastlog) Cannot open temporary file %s: %s\n"),temp,strerror(errno));
  55                 exit(EXIT_FAILURE);
  56         }
  57
  58         if ((dirp = opendir(outdir)) == NULL) {
  59                 debuga(_("Failed to open directory %s - %s\n"),outdir,strerror(errno));
  60                 exit(EXIT_FAILURE);
  61         }
  62         while ((direntp = readdir( dirp )) != NULL ){
  63                 if(strchr(direntp->d_name,'-') == 0)
  64                         continue;
  65
  66                 snprintf(warea,sizeof(warea),"%s%s",outdir,direntp->d_name);
  67                 if (stat(warea,&statb) == -1) {
  68                         debuga(_("Failed to get the creation time of %s\n"),warea);
  69                         continue;
  70                 }
  71                 t=statb.st_ctime;
  72                 local = localtime(&t);
  73                 strftime(ftime, sizeof(ftime), "%Y%m%d%H%M%S", local);
  74                 fprintf(fp_ou,"%s\t%s\n",ftime,direntp->d_name);
  75                 ftot++;
  76         }
  77
  78         closedir( dirp );
  79         if (fclose(fp_ou)==EOF) {
  80                 debuga(_("Write error in %s: %s\n"),temp,strerror(errno));
  81                 exit(EXIT_FAILURE);
  82         }
  83
  84         if(ftot<=LastLog) {
  85                 if (debug) {
  86                         debuga(ngettext("No old reports to delete as only %d report currently exists\n",
  87                                                 "No old reports to delete as only %d reports currently exist\n",ftot),ftot);
  88                 }
  89                 if (!KeepTempLog && unlink(temp)) {
  90                         debuga(_("Cannot delete \"%s\": %s\n"),temp,strerror(errno));
  91                         exit(EXIT_FAILURE);
  92                 }
  93                 return;
  94         }
  95
  96         if (snprintf(buf,sizeof(buf),"sort -n -t \"\t\" -k 1,1 -o \"%s/lastlog\" \"%s\"",tmp,temp)>=sizeof(buf)) {
  97                 debuga(_("Cannot sort last reports list as the resulting command is too long\n"));
  98                 exit(EXIT_FAILURE);
  99         }
 100         cstatus=system(buf);
 101         if (!WIFEXITED(cstatus) || WEXITSTATUS(cstatus)) {
 102                 debuga(_("sort command return status %d\n"),WEXITSTATUS(cstatus));
 103                 debuga(_("sort command: %s\n"),buf);
 104                 exit(EXIT_FAILURE);
 105         }
 106
 107         if (!KeepTempLog && unlink(temp)) {
 108                 debuga(_("Cannot delete \"%s\": %s\n"),temp,strerror(errno));
 109                 exit(EXIT_FAILURE);
 110         }
 111
 112         if (debug)
 113                 debuga(ngettext("%d report directory found\n","%d report directories found\n",ftot),ftot);
 114         ftot-=LastLog;
 115         if (debug)
 116                 debuga(ngettext("%d old report to delete\n","%d old reports to delete\n",ftot),ftot);
 117
 118         snprintf(temp,sizeof(temp),"%s/lastlog",tmp);
 119         if((fp_in=fopen(temp,"r"))==NULL) {
 120                 debuga(_("(lastlog) Cannot open temporary file %s: %s\n"),temp,strerror(errno));
 121                 exit(EXIT_FAILURE);
 122         }
 123
 124         while(ftot>0 && fgets(buf,sizeof(buf),fp_in)!=NULL) {
 125                 fixendofline(buf);
 126                 getword_start(&gwarea,buf);
 127                 if (getword(warea,sizeof(warea),&gwarea,'\t')<0) {
 128                         debuga(_("Maybe you have a broken record or garbage in your %s file\n"),temp);
 129                         exit(EXIT_FAILURE);
 130                 }
 131
 132                 if(debug)
 133                         debuga(_("Removing old report file %s\n"),gwarea.current);
 134                 if (snprintf(temp,sizeof(temp),"%s%s",outdir,gwarea.current)>=sizeof(temp)) {
 135                         debuga(_("Directory name too long: %s%s\n"),outdir,gwarea.current);
 136                         exit(EXIT_FAILURE);
 137                 }
 138                 unlinkdir(temp,0);
 139                 ftot--;
 140         }
 141
 142         fclose(fp_in);
 143         if (!KeepTempLog) {
 144                 snprintf(temp,sizeof(temp),"%s/lastlog",tmp);
 145                 if (unlink(temp) == -1)
 146                         debuga(_("Cannot delete \"%s\": %s\n"),temp,strerror(errno));
 147         }
 148
 149         return;
 150 }