/* PSPP - a program for statistical analysis.
- Copyright (C) 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <ctype.h>
#include <errno.h>
+#include <getopt.h>
#include <inttypes.h>
+#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include "data/val-type.h"
+#include "libpspp/cast.h"
#include "libpspp/compiler.h"
#include "libpspp/float-format.h"
#include "libpspp/integer-format.h"
#include "gl/error.h"
#include "gl/minmax.h"
#include "gl/progname.h"
+#include "gl/version-etc.h"
#include "gl/xalloc.h"
#define ID_MAX_LEN 64
size_t size, size_t count);
static void read_unknown_extension (struct sfm_reader *,
size_t size, size_t count);
-static void read_compressed_data (struct sfm_reader *);
+static void read_compressed_data (struct sfm_reader *, int max_cases);
static struct text_record *open_text_record (
struct sfm_reader *, size_t size);
static const char *text_parse_counted_string (struct text_record *);
static size_t text_pos (const struct text_record *);
-static void usage (int exit_code);
+static void usage (void);
static void sys_warn (struct sfm_reader *, const char *, ...)
PRINTF_FORMAT (2, 3);
static void sys_error (struct sfm_reader *, const char *, ...)
int
main (int argc, char *argv[])
{
+ int max_cases = 0;
struct sfm_reader r;
int i;
set_program_name (argv[0]);
- if (argc < 2)
- usage (EXIT_FAILURE);
- for (i = 1; i < argc; i++)
+ for (;;)
+ {
+ static const struct option long_options[] =
+ {
+ { "data", optional_argument, NULL, 'd' },
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'v' },
+ { NULL, 0, NULL, 0 },
+ };
+
+ int c;
+
+ c = getopt_long (argc, argv, "d::hv", long_options, NULL);
+ if (c == -1)
+ break;
+
+ switch (c)
+ {
+ case 'd':
+ max_cases = optarg ? atoi (optarg) : INT_MAX;
+ break;
+
+ case 'v':
+ version_etc (stdout, "pspp-dump-sav", PACKAGE_NAME, PACKAGE_VERSION,
+ "Ben Pfaff", "John Darrington", NULL_SENTINEL);
+ exit (EXIT_SUCCESS);
+
+ case 'h':
+ usage ();
+ exit (EXIT_SUCCESS);
+
+ default:
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ if (optind == argc)
+ error (1, 0, "at least one non-option argument is required; "
+ "use --help for help");
+
+ for (i = optind; i < argc; i++)
{
int rec_type;
r.var_widths = 0;
r.compressed = false;
- if (argc > 2)
+ if (argc - optind > 1)
printf ("Reading \"%s\":\n", r.file_name);
read_header (&r);
(long long int) ftello (r.file),
(long long int) ftello (r.file) + 4);
- if (r.compressed)
- read_compressed_data (&r);
+ if (r.compressed && max_cases > 0)
+ read_compressed_data (&r, max_cases);
fclose (r.file);
}
char eye_catcher[61];
uint8_t raw_layout_code[4];
int32_t layout_code;
- int32_t nominal_case_size;
int32_t compressed;
int32_t weight_index;
int32_t ncases;
layout_code = integer_get (r->integer_format,
raw_layout_code, sizeof raw_layout_code);
- nominal_case_size = read_int (r);
+ read_int (r); /* Nominal case size (not actually useful). */
compressed = read_int (r);
weight_index = read_int (r);
ncases = read_int (r);
double value;
value = float_get_double (r->float_format, raw_value);
- for (n_printable = 0; n_printable < sizeof raw_value; n_printable++)
+ for (n_printable = 0; n_printable < 8; n_printable++)
if (!isprint (raw_value[n_printable]))
break;
sys_error (r, "Bad size (%zu) or count (%zu) on extension 4.",
size, count);
- printf ("\tsysmis: %g\n", sysmis);
+ printf ("\tsysmis: %g (%a)\n", sysmis, sysmis);
if (sysmis != SYSMIS)
- sys_warn (r, "File specifies unexpected value %g as %s.",
- sysmis, "SYSMIS");
+ sys_warn (r, "File specifies unexpected value %g (%a) as %s.",
+ sysmis, sysmis, "SYSMIS");
- printf ("\thighest: %g\n", highest);
+ printf ("\thighest: %g (%a)\n", highest, highest);
if (highest != HIGHEST)
- sys_warn (r, "File specifies unexpected value %g as %s.",
- highest, "HIGHEST");
+ sys_warn (r, "File specifies unexpected value %g (%a) as %s.",
+ highest, highest, "HIGHEST");
- printf ("\tlowest: %g\n", lowest);
- if (lowest != LOWEST)
- sys_warn (r, "File specifies unexpected value %g as %s.",
- lowest, "LOWEST");
+ printf ("\tlowest: %g (%a)\n", lowest, lowest);
+ if (lowest != LOWEST && lowest != SYSMIS)
+ sys_warn (r, "File specifies unexpected value %g (%a) as %s.",
+ lowest, lowest, "LOWEST");
}
/* Read record type 7, subtype 7. */
buffer = xmalloc (count);
read_bytes (r, buffer, count);
if (memchr (buffer, 0, count) == 0)
- for (i = 0; i < count; i++)
- {
- unsigned char c = buffer[i];
-
- if (c == '\\')
- printf ("\\\\");
- else if (c == '\n' || isprint (c))
- putchar (c);
- else
- printf ("\\%02x", c);
- }
+ {
+ for (i = 0; i < count; i++)
+ {
+ unsigned char c = buffer[i];
+
+ if (c == '\\')
+ printf ("\\\\");
+ else if (c == '\n' || isprint (c))
+ putchar (c);
+ else
+ printf ("\\%02x", c);
+ }
+ putchar ('\n');
+ }
else
hex_dump (0, buffer, count);
free (buffer);
}
static void
-read_compressed_data (struct sfm_reader *r)
+read_compressed_data (struct sfm_reader *r, int max_cases)
{
enum { N_OPCODES = 8 };
uint8_t opcodes[N_OPCODES];
opcode_idx = N_OPCODES;
opcode_ofs = 0;
case_num = 0;
- for (case_num = 0; ; case_num++)
+ for (case_num = 0; case_num < max_cases; case_num++)
{
printf ("%08llx: case %d's uncompressible data begins\n",
(long long int) ftello (r->file), case_num);
}
\f
static void
-usage (int exit_code)
+usage (void)
{
- printf ("usage: %s SYSFILE...\n"
- "where each SYSFILE is the name of a system file\n",
- program_name);
- exit (exit_code);
+ printf ("\
+%s, a utility for dissecting system files.\n\
+Usage: %s [OPTION]... SYSFILE...\n\
+where each SYSFILE is the name of a system file.\n\
+\n\
+Options:\n\
+ --data[=MAXCASES] print (up to MAXCASES cases of) compressed data\n\
+ --help display this help and exit\n\
+ --version output version information and exit\n",
+ program_name, program_name);
}
/* Displays a corruption message. */