1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2013, 2014, 2015 Free Software Foundation, Inc.
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.
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.
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/>. */
25 #include "data/any-reader.h"
26 #include "data/casereader.h"
27 #include "data/casewriter.h"
28 #include "data/csv-file-writer.h"
29 #include "data/encrypted-file.h"
30 #include "data/file-name.h"
31 #include "data/por-file-writer.h"
32 #include "data/settings.h"
33 #include "data/sys-file-writer.h"
34 #include "data/file-handle-def.h"
35 #include "libpspp/assertion.h"
36 #include "libpspp/cast.h"
37 #include "libpspp/i18n.h"
40 #include "gl/getpass.h"
41 #include "gl/progname.h"
42 #include "gl/version-etc.h"
45 #define _(msgid) gettext (msgid)
47 static void usage (void);
49 static void decrypt_file (struct encrypted_file *enc,
50 const struct file_handle *input_filename,
51 const struct file_handle *output_filename,
52 const char *password);
55 main (int argc, char *argv[])
57 const char *input_filename;
58 const char *output_filename;
60 long long int max_cases = LLONG_MAX;
61 struct dictionary *dict;
62 struct casereader *reader;
63 struct file_handle *input_fh;
64 const char *encoding = NULL;
65 struct encrypted_file *enc;
67 const char *output_format = NULL;
68 struct file_handle *output_fh;
69 struct casewriter *writer;
70 const char *password = NULL;
74 set_program_name (argv[0]);
81 static const struct option long_options[] =
83 { "cases", required_argument, NULL, 'c' },
84 { "encoding", required_argument, NULL, 'e' },
85 { "password", required_argument, NULL, 'p' },
87 { "output-format", required_argument, NULL, 'O' },
89 { "help", no_argument, NULL, 'h' },
90 { "version", no_argument, NULL, 'v' },
96 c = getopt_long (argc, argv, "c:e:p:O:hv", long_options, NULL);
103 max_cases = strtoull (optarg, NULL, 0);
115 output_format = optarg;
119 version_etc (stdout, "pspp-convert", PACKAGE_NAME, PACKAGE_VERSION,
120 "Ben Pfaff", "John Darrington", NULL_SENTINEL);
132 if (optind + 2 != argc)
133 error (1, 0, _("exactly two non-option arguments are required; "
134 "use --help for help"));
136 input_filename = argv[optind];
137 output_filename = argv[optind + 1];
138 input_fh = fh_create_file (NULL, input_filename, NULL, fh_default_properties ());
140 if (output_format == NULL)
142 const char *dot = strrchr (output_filename, '.');
144 error (1, 0, _("%s: cannot guess output format (use -O option)"),
147 output_format = dot + 1;
150 output_fh = fh_create_file (NULL, output_filename, NULL, fh_default_properties ());
151 if (encrypted_file_open (&enc, input_fh) > 0)
153 if (encrypted_file_is_sav (enc))
155 if (strcmp (output_format, "sav") && strcmp (output_format, "sys"))
156 error (1, 0, _("can only convert encrypted data file to sav or "
161 if (strcmp (output_format, "sps"))
162 error (1, 0, _("can only convert encrypted syntax file to sps "
166 decrypt_file (enc, input_fh, output_fh, password);
171 reader = any_reader_open_and_decode (input_fh, encoding, &dict, NULL);
176 if (!strcmp (output_format, "csv") || !strcmp (output_format, "txt"))
178 struct csv_writer_options options;
180 csv_writer_options_init (&options);
181 options.include_var_names = true;
182 writer = csv_writer_open (output_fh, dict, &options);
184 else if (!strcmp (output_format, "sav") || !strcmp (output_format, "sys"))
186 struct sfm_write_options options;
188 options = sfm_writer_default_options ();
189 writer = sfm_open_writer (output_fh, dict, options);
191 else if (!strcmp (output_format, "por"))
193 struct pfm_write_options options;
195 options = pfm_writer_default_options ();
196 writer = pfm_open_writer (output_fh, dict, options);
200 error (1, 0, _("%s: unknown output format (use -O option)"),
205 for (i = 0; i < max_cases; i++)
209 c = casereader_read (reader);
213 casewriter_write (writer, c);
216 if (!casereader_destroy (reader))
217 error (1, 0, _("%s: error reading input file"), input_filename);
218 if (!casewriter_destroy (writer))
219 error (1, 0, _("%s: error writing output file"), output_filename);
229 decrypt_file (struct encrypted_file *enc,
230 const struct file_handle *ifh,
231 const struct file_handle *ofh,
232 const char *password)
236 const char *input_filename = fh_get_file_name (ifh);
237 const char *output_filename = fh_get_file_name (ofh);
239 if (password == NULL)
241 password = getpass ("password: ");
242 if (password == NULL)
246 if (!encrypted_file_unlock (enc, password))
247 error (1, 0, _("sorry, wrong password"));
249 out = fn_open (ofh, "wb");
251 error (1, errno, ("%s: error opening output file"), output_filename);
255 uint8_t buffer[1024];
258 n = encrypted_file_read (enc, buffer, sizeof buffer);
262 if (fwrite (buffer, 1, n, out) != n)
263 error (1, errno, ("%s: write error"), output_filename);
266 err = encrypted_file_close (enc);
268 error (1, err, ("%s: read error"), input_filename);
270 if (fflush (out) == EOF)
271 error (1, errno, ("%s: write error"), output_filename);
279 %s, a utility for converting SPSS data files to other formats.\n\
280 Usage: %s [OPTION]... INPUT OUTPUT\n\
281 where INPUT is an SPSS data file or encrypted syntax file\n\
282 and OUTPUT is the name of the desired output file.\n\
284 The desired format of OUTPUT is by default inferred from its extension:\n\
285 csv txt comma-separated value\n\
286 sav sys SPSS system file\n\
287 por SPSS portable file\n\
288 sps SPSS syntax file (encrypted syntax input files only)\n\
291 -O, --output-format=FORMAT set specific output format, where FORMAT\n\
292 is one of the extensions listed above\n\
293 -e, --encoding=CHARSET override encoding of input data file\n\
294 -c MAXCASES limit number of cases to copy (default is all cases)\n\
295 -p PASSWORD password for encrypted files\n\
296 --help display this help and exit\n\
297 --version output version information and exit\n",
298 program_name, program_name);