/**
* dump.c HEXDUMP utility
*
* Copyright 2001,2002,2005,2009 by Charles Wilson
* All rights reserved.
*
* 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
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*
* See the COPYING file for full license information.
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include "common.h"
#if defined(__WIN32__) && !defined(__CYGWIN__)
# include
# include
#endif
static const char versionID[] = PACKAGE_VERSION;
static const char revID[] =
"$Id$";
static const char copyrightID[] =
"Copyright (c) 2009\nCharles S. Wilson. All rights reserved.\nLicensed under GPLv3+\n";
static void printTopDescription (FILE * f, char *name);
static void printBottomDescription (FILE * f, char *name);
static const char *getVersion (void);
static void usage (FILE * f, char *name);
static void help (FILE * f, char *name);
static void version (FILE * f, char *name);
static void license (FILE * f, char *name);
static void puthex (long n, int digits, int pos);
static void dumpfile (FILE * f);
static char *program_name;
static poptContext optCon;
static char line[80];
static long address;
int
main (int argc, const char **argv)
{
const char **rest;
int rc;
int ec = 0;
struct poptOption helpOptionsTable[] = {
{"help", '?', POPT_ARG_NONE, NULL, '?',
"Show this help message", NULL},
{"usage", '\0', POPT_ARG_NONE, NULL, 'u',
"Display brief usage message", NULL},
{"version", '\0', POPT_ARG_NONE, NULL, 'v',
"Display version information", NULL},
{"license", '\0', POPT_ARG_NONE, NULL, 'l',
"Display licensing information", NULL},
{NULL, '\0', 0, NULL, 0, NULL, NULL}
};
struct poptOption opt[] = {
{NULL, '\0', POPT_ARG_INCLUDE_TABLE, helpOptionsTable, 0,
"Help options", NULL},
{NULL, '\0', 0, NULL, 0, NULL, NULL}
};
if ((program_name = strdup (argv[0])) == NULL)
{
fprintf (stderr, "%s: memory allocation error\n", argv[0]);
exit (1);
}
optCon = poptGetContext (NULL, argc, argv, opt, 0);
poptSetOtherOptionHelp (optCon, "[OPTION...] [files...]");
while ((rc = poptGetNextOpt (optCon)) > 0)
{
switch (rc)
{
case '?':
help (stdout, program_name);
goto exit;
case 'u':
usage (stdout, program_name);
goto exit;
case 'v':
version (stdout, program_name);
goto exit;
case 'l':
license (stdout, program_name);
goto exit;
}
}
if (rc < -1)
{
fprintf (stderr, "%s: bad argument %s: %s\n",
program_name, poptBadOption (optCon, POPT_BADOPTION_NOALIAS),
poptStrerror (rc));
ec = 2;
goto exit;
}
rest = poptGetArgs (optCon);
if (rest == NULL)
dumpfile (stdin);
else
{
while (*rest)
{
FILE *f = fopen (*rest, "rb");
printf ("%s:\n", *rest);
if (f)
{
dumpfile (f);
fclose (f);
}
else
printf ("*** Can't open %s!!\n", *rest);
rest++;
}
}
/*
if (argc < 2) dumpfile(stdin);
else {
while (--argc > 0) {
FILE *f = fopen(*++argv, "rb");
printf("%s:\n",*argv);
if (f) {
dumpfile(f);
fclose(f);
}
else printf("*** Can't open %s!!\n", *argv);
}
}
*/
exit:
poptFreeContext (optCon);
free (program_name);
return (ec);
}
static const char *
getVersion ()
{
return versionID;
}
static void
printTopDescription (FILE * f, char *name)
{
fprintf (f, "%s is part of cygutils version %s\n", name, getVersion ());
fprintf (f, " Prints a hexdump of stdin or specified files to stdout\n\n");
}
static void
printBottomDescription (FILE * f, char *name)
{
fprintf (f, "\n");
fprintf (f, "Other arguments\n");
fprintf (f,
" [files...] dump each file specified; if none, use stdin\n");
fprintf (f,
"\nSimilar in behavior to 'od -Ax -tx2z [a file]'\n");
}
static
printLicense (FILE * f, char *name)
{
fprintf (f,
"This program is free software: you can redistribute it and/or modify\n"
"it under the terms of the GNU General Public License as published by\n"
"the Free Software Foundation, either version 3 of the License, or\n"
"(at your option) any later version.\n\n"
"This program is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU General Public License for more details.\n\n"
"You should have received a copy of the GNU General Public License\n"
"along with this program. If not, see .\n\n"
"See the COPYING file for full license information.\n");
}
static void
usage (FILE * f, char *name)
{
poptPrintUsage (optCon, f, 0);
}
static void
help (FILE * f, char *name)
{
printTopDescription (f, name);
poptPrintHelp (optCon, f, 0);
printBottomDescription (f, name);
}
static void
version (FILE * f, char *name)
{
printTopDescription (f, name);
}
static void
license (FILE * f, char *name)
{
printTopDescription (f, name);
printLicense (f, name);
}
static void
puthex (long n, int digits, int pos)
{
if (digits > 1)
puthex (n / 16, digits - 1, pos);
line[pos + digits - 1] = "0123456789abcdef"[n % 16];
}
static void
dumpfile (FILE * f)
{
int c, i;
address = 0;
c = getc (f);
while (1)
{
for (i = 0; i < 50; i++)
line[i] = ' ';
for (; i < 80; i++)
line[i] = 0;
puthex (address, 8, 0);
if (c == EOF)
return;
for (i = 0; i < 16; i++)
{
puthex (c & 0xff, 2, 10 + i * 2 + i / 2);
line[50 + i] = '.';
if (isprint (c & 0x7f))
line[50 + i] = c & 0x7f;
if ((c = getc (f)) == EOF)
break;
}
if (address && ((address % 256) == 0))
{
#if defined(__WIN32__) && !defined(__CYGWIN__)
if (isatty (STDOUT_FILENO))
{
while (kbhit ())
getch ();
getch ();
}
#endif
puts ("");
puts
(" Addr 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 2 4 6 8 A C E ");
puts
("-------- ---- ---- ---- ---- ---- ---- ---- ---- ----------------");
}
puts (line);
address += 16;
}
}