lastlog.c

   1 /*
   2  * SARG Squid Analysis Report Generator      http://sarg.sourceforge.net
   3  *                                                            1998, 2012
   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         snprintf(temp,sizeof(temp),"%slastlog1",outdir);
  50         if((fp_ou=fopen(temp,"w"))==NULL) {
  51                 debuga(_("(lastlog) Cannot open temporary file %s: %s\n"),temp,strerror(errno));
  52                 exit(EXIT_FAILURE);
  53         }
  54
  55         if ((dirp = opendir(outdir)) == NULL) {
  56                 debuga(_("Failed to open directory %s - %s\n"),outdir,strerror(errno));
  57                 exit(EXIT_FAILURE);
  58         }
  59         while ((direntp = readdir( dirp )) != NULL ){
  60                 if(strchr(direntp->d_name,'-') == 0)
  61                         continue;
  62
  63                 snprintf(warea,sizeof(warea),"%s%s",outdir,direntp->d_name);
  64                 if (stat(warea,&statb) == -1) {
  65                         debuga(_("Failed to get the creation time of %s\n"),warea);
  66                         continue;
  67                 }
  68                 t=statb.st_ctime;
  69                 local = localtime(&t);
  70                 strftime(ftime, sizeof(ftime), "%Y%m%d%H%M%S", local);
  71                 fprintf(fp_ou,"%s\t%s\n",ftime,direntp->d_name);
  72                 ftot++;
  73         }
  74
  75         closedir( dirp );
  76         fclose(fp_ou);
  77
  78         snprintf(buf,sizeof(buf),"sort -n -t \"\t\" -k 1,1 -o \"%slastlog\" \"%s\"",outdir,temp);
  79         cstatus=system(buf);
  80         if (!WIFEXITED(cstatus) || WEXITSTATUS(cstatus)) {
  81                 debuga(_("sort command return status %d\n"),WEXITSTATUS(cstatus));
  82                 debuga(_("sort command: %s\n"),buf);
  83                 exit(EXIT_FAILURE);
  84         }
  85
  86         if (unlink(temp)) {
  87                 debuga(_("Cannot delete \"%s\": %s\n"),temp,strerror(errno));
  88                 exit(EXIT_FAILURE);
  89         }
  90
  91         if(ftot<=LastLog) {
  92                 snprintf(temp,sizeof(temp),"%slastlog",outdir);
  93                 if(access(temp, R_OK) == 0) {
  94                         if (unlink(temp)) {
  95                                 debuga(_("Cannot delete \"%s\": %s\n"),temp,strerror(errno));
  96                                 exit(EXIT_FAILURE);
  97                         }
  98                 }
  99                 return;
 100         }
 101
 102         ftot-=LastLog;
 103
 104         snprintf(temp,sizeof(temp),"%slastlog",outdir);
 105         if((fp_in=fopen(temp,"r"))==NULL) {
 106                 debuga(_("(lastlog) Cannot open temporary file %s: %s\n"),temp,strerror(errno));
 107                 exit(EXIT_FAILURE);
 108         }
 109
 110         while(ftot>0 && fgets(buf,sizeof(buf),fp_in)!=NULL) {
 111                 fixendofline(buf);
 112                 getword_start(&gwarea,buf);
 113                 if (getword(warea,sizeof(warea),&gwarea,'\t')<0) {
 114                         debuga(_("Maybe you have a broken record or garbage in your %s file\n"),temp);
 115                         exit(EXIT_FAILURE);
 116                 }
 117
 118                 if(debug)
 119                         debuga(_("Removing old report file %s\n"),gwarea.current);
 120                 if (snprintf(temp,sizeof(temp),"%s%s",outdir,gwarea.current)>=sizeof(temp)) {
 121                         debuga(_("Directory name too long: %s%s\n"),outdir,gwarea.current);
 122                         exit(EXIT_FAILURE);
 123                 }
 124                 unlinkdir(temp,0);
 125                 ftot--;
 126         }
 127
 128         fclose(fp_in);
 129         snprintf(temp,sizeof(temp),"%slastlog",outdir);
 130         if (unlink(temp) == -1) {
 131                 debuga(_("Cannot delete \"%s\": %s\n"),temp,strerror(errno));
 132         }
 133
 134         return;
 135 }