lastlog.c

   1 /*
   2  * SARG Squid Analysis Report Generator      http://sarg.sourceforge.net
   3  *                                                            1998, 2013
   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(_("Path too long: "));
  51                 debuga_more("%s/lastlog1\n",tmp);
  52                 exit(EXIT_FAILURE);
  53         }
  54         if((fp_ou=fopen(temp,"w"))==NULL) {
  55                 debugapos("lastlog",_("Cannot open file \"%s\": %s\n"),temp,strerror(errno));
  56                 exit(EXIT_FAILURE);
  57         }
  58
  59         if ((dirp = opendir(outdir)) == NULL) {
  60                 debuga(_("Cannot open directory \"%s\": %s\n"),outdir,strerror(errno));
  61                 exit(EXIT_FAILURE);
  62         }
  63         while ((direntp = readdir( dirp )) != NULL ){
  64                 if(strchr(direntp->d_name,'-') == 0)
  65                         continue;
  66
  67                 snprintf(warea,sizeof(warea),"%s%s",outdir,direntp->d_name);
  68                 if (stat(warea,&statb) == -1) {
  69                         debuga(_("Failed to get the creation time of \"%s\": %s\n"),warea,strerror(errno));
  70                         continue;
  71                 }
  72                 t=statb.st_ctime;
  73                 local = localtime(&t);
  74                 strftime(ftime, sizeof(ftime), "%Y%m%d%H%M%S", local);
  75                 fprintf(fp_ou,"%s\t%s\n",ftime,direntp->d_name);
  76                 ftot++;
  77         }
  78
  79         closedir( dirp );
  80         fclose(fp_ou);
  81
  82         if(ftot<=LastLog) {
  83                 if (debug) {
  84                         debuga(ngettext("No old reports to delete as only %d report currently exist\n",
  85                                                 "No old reports to delete as only %d reports currently exists\n",ftot),ftot);
  86                 }
  87                 if (!KeepTempLog && unlink(temp)) {
  88                         debuga(_("Cannot delete \"%s\": %s\n"),temp,strerror(errno));
  89                         exit(EXIT_FAILURE);
  90                 }
  91                 return;
  92         }
  93
  94         snprintf(buf,sizeof(buf),"sort -n -t \"\t\" -k 1,1 -o \"%s/lastlog\" \"%s\"",tmp,temp);
  95         cstatus=system(buf);
  96         if (!WIFEXITED(cstatus) || WEXITSTATUS(cstatus)) {
  97                 debuga(_("sort command return status %d\n"),WEXITSTATUS(cstatus));
  98                 debuga(_("sort command: %s\n"),buf);
  99                 exit(EXIT_FAILURE);
 100         }
 101
 102         if (!KeepTempLog && unlink(temp)) {
 103                 debuga(_("Cannot delete \"%s\": %s\n"),temp,strerror(errno));
 104                 exit(EXIT_FAILURE);
 105         }
 106
 107         if (debug)
 108                 debuga(ngettext("%d report directory found\n","%d report directories found\n",ftot),ftot);
 109         ftot-=LastLog;
 110         if (debug)
 111                 debuga(ngettext("%d old report to delete\n","%d old reports to delete\n",ftot),ftot);
 112
 113         snprintf(temp,sizeof(temp),"%s/lastlog",tmp);
 114         if((fp_in=fopen(temp,"r"))==NULL) {
 115                 debugapos("lastlog",_("Cannot open file \"%s\": %s\n"),temp,strerror(errno));
 116                 exit(EXIT_FAILURE);
 117         }
 118
 119         while(ftot>0 && fgets(buf,sizeof(buf),fp_in)!=NULL) {
 120                 fixendofline(buf);
 121                 getword_start(&gwarea,buf);
 122                 if (getword(warea,sizeof(warea),&gwarea,'\t')<0) {
 123                         debuga(_("Invalid record in file \"%s\"\n"),temp);
 124                         exit(EXIT_FAILURE);
 125                 }
 126
 127                 if(debug)
 128                         debuga(_("Removing old report file \"%s\"\n"),gwarea.current);
 129                 if (snprintf(temp,sizeof(temp),"%s%s",outdir,gwarea.current)>=sizeof(temp)) {
 130                         debuga(_("Path too long: "));
 131                         debuga_more("%s%s\n",outdir,gwarea.current);
 132                         exit(EXIT_FAILURE);
 133                 }
 134                 unlinkdir(temp,0);
 135                 ftot--;
 136         }
 137
 138         fclose(fp_in);
 139         if (!KeepTempLog) {
 140                 snprintf(temp,sizeof(temp),"%s/lastlog",tmp);
 141                 if (unlink(temp) == -1)
 142                         debuga(_("Cannot delete \"%s\": %s\n"),temp,strerror(errno));
 143         }
 144
 145         return;
 146 }