tests/libpspp/zip-test.c

   1 /* PSPP - a program for statistical analysis.
   2    Copyright (C) 2011 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17
  18 /* A simple program to zip or unzip a file */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include <config.h>
  22 #endif
  23
  24 #include <string.h>
  25 #include <stdio.h>
  26 #include "libpspp/assertion.h"
  27 #include <libpspp/compiler.h>
  28 #include <libpspp/zip-writer.h>
  29 #include <libpspp/zip-reader.h>
  30 #include <libpspp/str.h>
  31
  32 #include <errno.h>
  33 #include "xalloc.h"
  34 \f
  35 /* Exit with a failure code.
  36    (Place a breakpoint on this function while debugging.) */
  37 static void
  38 check_die (void)
  39 {
  40   exit (EXIT_FAILURE);
  41 }
  42
  43 int
  44 main (int argc, char **argv)
  45 {
  46   if ( argc < 4)
  47     {
  48       fprintf (stderr, "Usage zip-test: {r|w} archive file0 file1 ... filen\n");
  49       check_die ();
  50     }
  51
  52   if ( 0 == strcmp ("w", argv[1]))
  53     {
  54       int i;
  55       struct zip_writer *zw = zip_writer_create (argv[2]);
  56       for (i = 3; i < argc; ++i)
  57         {
  58           FILE *fp = fopen (argv[i], "r");
  59           if (!fp ) check_die ();
  60           zip_writer_add (zw, fp, argv[i]);
  61         }
  62       zip_writer_close (zw);
  63     }
  64   else if ( 0  == strcmp ("r", argv[1]))
  65     {
  66       const int BUFSIZE=256;
  67       char buf[BUFSIZE];
  68       int i;
  69       struct string str;
  70       struct zip_reader *zr = zip_reader_create (argv[2], &str);
  71       if ( NULL == zr)
  72         {
  73           fprintf (stderr, "Could not create zip reader: %s\n", ds_cstr (&str));
  74           check_die ();
  75         }
  76       for (i = 3; i < argc; ++i)
  77         {
  78           int x = 0;
  79           struct zip_member *zm ;
  80           FILE *fp = fopen (argv[i], "w");
  81           if ( NULL == fp)
  82             {
  83               int e = errno;
  84               fprintf (stderr, "Could not create file %s: %s\n", argv[i], strerror(e));
  85               check_die ();
  86             }
  87           zm = zip_member_open (zr, argv[i]);
  88           if ( NULL == zm)
  89             {
  90               fprintf (stderr, "Could not open zip member %s from archive: %s\n",
  91                        argv[i], ds_cstr (&str));
  92               check_die ();
  93             }
  94
  95           while ((x = zip_member_read (zm, buf, BUFSIZE)) > 0)
  96             {
  97               fwrite (buf, x, 1, fp);
  98             }
  99           fclose (fp);
 100           if ( x < 0)
 101             {
 102               fprintf (stderr, "Unzip failed: %s\n", ds_cstr (&str));
 103               check_die ();
 104             }
 105         }
 106       zip_reader_destroy (zr);
 107     }
 108   else
 109     exit (1);
 110
 111   return 0;
 112 }