decomp.c

   1 /*
   2  * SARG Squid Analysis Report Generator      http://sarg.sourceforge.net
   3  *                                                            1998, 2010
   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 FILE *decomp(const char *arq, bool *pipe)
  31 {
  32         char cmd[1024];
  33         int arqlen;
  34
  35         if(access(arq, R_OK) != 0) {
  36                 debuga(_("File not found: %s\n"),arq);
  37                 exit(EXIT_FAILURE);
  38         }
  39
  40         arqlen=strlen(arq);
  41         if(arqlen>3 && strcmp(arq+arqlen-3,".gz") == 0) {
  42                 debuga(_("Decompressing log file \"%s\" with zcat\n"),arq);
  43                 if (snprintf(cmd,sizeof(cmd),"zcat \"%s\"",arq)>=sizeof(cmd)) {
  44                         debuga(_("decompression command too long for log file %s\n"),arq);
  45                         exit(EXIT_FAILURE);
  46                 }
  47                 *pipe=true;
  48                 return(popen(cmd,"r"));
  49         }
  50
  51         if(arqlen>4 && strcmp(arq+arqlen-4,".bz2") == 0) {
  52                 debuga(_("Decompressing log file \"%s\" with bzcat\n"),arq);
  53                 if (snprintf(cmd,sizeof(cmd),"bzcat \"%s\"",arq)>=sizeof(cmd)) {
  54                         debuga(_("decompression command too long for log file %s\n"),arq);
  55                         exit(EXIT_FAILURE);
  56                 }
  57                 *pipe=true;
  58                 return(popen(cmd,"r"));
  59         }
  60
  61         if(arqlen>2 && strcmp(arq+arqlen-2,".Z") == 0) {
  62                 debuga(_("Decompressing log file \"%s\" with zcat\n"),arq);
  63                 if (snprintf(cmd,sizeof(cmd),"zcat \"%s\"",arq)>=sizeof(cmd)) {
  64                         debuga(_("decompression command too long for log file %s\n"),arq);
  65                         exit(EXIT_FAILURE);
  66                 }
  67                 *pipe=true;
  68                 return(popen(cmd,"r"));
  69         }
  70
  71         *pipe=false;
  72         return(MY_FOPEN(arq,"r"));
  73 }