/* strings -- print the strings of printable characters in files
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 1993-2015 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
Options:
--all
-a
- - Do not scan only the initialized data section of object files.
+ - Scan each file in its entirety.
+
+ --data
+ -d Scan only the initialized data section(s) of object files.
--print-file-name
-f Print the name of the file before each string.
-t {o,x,d} Print the offset within the file before each string,
in octal/hex/decimal.
+ --include-all-whitespace
+ -w By default tab and space are the only whitepace included in graphic
+ char sequences. This option considers all of isspace() valid.
+
-o Like -to. (Some other implementations have -o like -to,
others like -td. We chose one arbitrarily.)
-h Print the usage message on the standard output.
--version
+ -V
-v Print the program version number.
Written by Richard Stallman <rms@gnu.ai.mit.edu>
#include "getopt.h"
#include "libiberty.h"
#include "safe-ctype.h"
-#include <sys/stat.h>
#include "bucomm.h"
-/* Some platforms need to put stdin into binary mode, to read
- binary files. */
-#ifdef HAVE_SETMODE
-#ifdef _O_BINARY
-#define setmode _setmode
-#endif
-#if O_BINARY
-#include <io.h>
-#define SET_BINARY(f) do { if (!isatty (f)) setmode (f, O_BINARY); } while (0)
-#endif
-#endif
-
#define STRING_ISGRAPHIC(c) \
( (c) >= 0 \
&& (c) <= 255 \
- && ((c) == '\t' || ISPRINT (c) || (encoding == 'S' && (c) > 127)))
+ && ((c) == '\t' || ISPRINT (c) || (encoding == 'S' && (c) > 127) \
+ || (include_all_whitespace == TRUE && ISSPACE (c))) \
+ )
#ifndef errno
extern int errno;
/* The BFD section flags that identify an initialized data section. */
#define DATA_FLAGS (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS)
-#ifdef HAVE_FOPEN64
-typedef off64_t file_off;
-#define file_open(s,m) fopen64(s, m)
-#else
-typedef off_t file_off;
-#define file_open(s,m) fopen(s, m)
-#endif
-#ifdef HAVE_STAT64
-typedef struct stat64 statbuf;
-#define file_stat(f,s) stat64(f, s)
-#else
-typedef struct stat statbuf;
-#define file_stat(f,s) stat(f, s)
-#endif
-
/* Radix for printing addresses (must be 8, 10 or 16). */
static int address_radix;
/* Minimum length of sequence of graphic chars to trigger output. */
static int string_min;
+/* Whether or not we include all whitespace as a graphic char. */
+static bfd_boolean include_all_whitespace;
+
/* TRUE means print address within file for each string. */
static bfd_boolean print_addresses;
static struct option long_options[] =
{
{"all", no_argument, NULL, 'a'},
+ {"data", no_argument, NULL, 'd'},
{"print-file-name", no_argument, NULL, 'f'},
{"bytes", required_argument, NULL, 'n'},
{"radix", required_argument, NULL, 't'},
+ {"include-all-whitespace", required_argument, NULL, 'w'},
{"encoding", required_argument, NULL, 'e'},
{"target", required_argument, NULL, 'T'},
{"help", no_argument, NULL, 'h'},
static void strings_a_section (bfd *, asection *, void *);
static bfd_boolean strings_object_file (const char *);
-static bfd_boolean strings_file (char *file);
-static void print_strings (const char *, FILE *, file_off, int, int, char *);
+static bfd_boolean strings_file (char *);
+static void print_strings (const char *, FILE *, file_ptr, int, int, char *);
static void usage (FILE *, int);
-static long get_char (FILE *, file_off *, int *, char **);
+static long get_char (FILE *, file_ptr *, int *, char **);
\f
int main (int, char **);
int optc;
int exit_status = 0;
bfd_boolean files_given = FALSE;
+ char *s;
+ int numeric_opt = 0;
#if defined (HAVE_SETLOCALE)
setlocale (LC_ALL, "");
expandargv (&argc, &argv);
string_min = 4;
+ include_all_whitespace = FALSE;
print_addresses = FALSE;
print_filenames = FALSE;
- datasection_only = TRUE;
+ if (DEFAULT_STRINGS_ALL)
+ datasection_only = FALSE;
+ else
+ datasection_only = TRUE;
target = NULL;
encoding = 's';
- while ((optc = getopt_long (argc, argv, "afhHn:ot:e:T:Vv0123456789",
+ while ((optc = getopt_long (argc, argv, "adfhHn:wot:e:T:Vv0123456789",
long_options, (int *) 0)) != EOF)
{
switch (optc)
datasection_only = FALSE;
break;
+ case 'd':
+ datasection_only = TRUE;
+ break;
+
case 'f':
print_filenames = TRUE;
break;
usage (stdout, 0);
case 'n':
- string_min = (int) strtoul (optarg, NULL, 0);
+ string_min = (int) strtoul (optarg, &s, 0);
+ if (s != NULL && *s != 0)
+ fatal (_("invalid integer argument %s"), optarg);
+ break;
+
+ case 'w':
+ include_all_whitespace = TRUE;
break;
case 'o':
usage (stderr, 1);
default:
- string_min = (int) strtoul (argv[optind - 1] + 1, NULL, 0);
+ numeric_opt = optind;
break;
}
}
+ if (numeric_opt != 0)
+ {
+ string_min = (int) strtoul (argv[numeric_opt - 1] + 1, &s, 0);
+ if (s != NULL && *s != 0)
+ fatal (_("invalid integer argument %s"), argv[numeric_opt - 1] + 1);
+ }
if (string_min < 1)
fatal (_("invalid minimum string length %d"), string_min);
if (optind >= argc)
{
datasection_only = FALSE;
-#ifdef SET_BINARY
SET_BINARY (fileno (stdin));
-#endif
print_strings ("{standard input}", stdin, 0, 0, 0, (char *) NULL);
files_given = TRUE;
}
got_a_section = TRUE;
print_strings (filename_and_sizep->filename, NULL, sect->filepos,
- 0, sectsize, mem);
+ 0, sectsize, (char *) mem);
}
free (mem);
static bfd_boolean
strings_file (char *file)
{
- statbuf st;
+ struct stat st;
- if (file_stat (file, &st) < 0)
+ /* get_file_size does not support non-S_ISREG files. */
+
+ if (stat (file, &st) < 0)
{
if (errno == ENOENT)
non_fatal (_("'%s': No such file"), file);
{
FILE *stream;
- stream = file_open (file, FOPEN_RB);
+ stream = fopen (file, FOPEN_RB);
if (stream == NULL)
{
fprintf (stderr, "%s: ", program_name);
return FALSE;
}
- print_strings (file, stream, (file_off) 0, 0, 0, (char *) 0);
+ print_strings (file, stream, (file_ptr) 0, 0, 0, (char *) 0);
if (fclose (stream) == EOF)
{
MAGICCOUNT is how many characters are in it. */
static long
-get_char (FILE *stream, file_off *address, int *magiccount, char **magic)
+get_char (FILE *stream, file_ptr *address, int *magiccount, char **magic)
{
int c, i;
- long r = EOF;
- unsigned char buf[4];
+ long r = 0;
for (i = 0; i < encoding_bytes; i++)
{
}
(*address)++;
- buf[i] = c;
+ r = (r << 8) | (c & 0xff);
}
switch (encoding)
{
- case 'S':
- case 's':
- r = buf[0];
- break;
- case 'b':
- r = (buf[0] << 8) | buf[1];
+ default:
break;
case 'l':
- r = buf[0] | (buf[1] << 8);
- break;
- case 'B':
- r = ((long) buf[0] << 24) | ((long) buf[1] << 16) |
- ((long) buf[2] << 8) | buf[3];
+ r = ((r & 0xff) << 8) | ((r & 0xff00) >> 8);
break;
case 'L':
- r = buf[0] | ((long) buf[1] << 8) | ((long) buf[2] << 16) |
- ((long) buf[3] << 24);
+ r = (((r & 0xff) << 24) | ((r & 0xff00) << 8)
+ | ((r & 0xff0000) >> 8) | ((r & 0xff000000) >> 24));
break;
}
- if (r == EOF)
- return 0;
-
return r;
}
\f
Those characters come at address ADDRESS and the data in STREAM follow. */
static void
-print_strings (const char *filename, FILE *stream, file_off address,
+print_strings (const char *filename, FILE *stream, file_ptr address,
int stop_point, int magiccount, char *magic)
{
char *buf = (char *) xmalloc (sizeof (char) * (string_min + 1));
while (1)
{
- file_off start;
+ file_ptr start;
int i;
long c;
{
c = get_char (stream, &address, &magiccount, &magic);
if (c == EOF)
- return;
+ {
+ free (buf);
+ return;
+ }
if (! STRING_ISGRAPHIC (c))
/* Found a non-graphic. Try again starting with next char. */
goto tryline;
switch (address_radix)
{
case 8:
-#if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
+#ifdef HAVE_LONG_LONG
if (sizeof (start) > sizeof (long))
{
-#ifndef __MSVCRT__
+# ifndef __MSVCRT__
printf ("%7llo ", (unsigned long long) start);
-#else
+# else
printf ("%7I64o ", (unsigned long long) start);
-#endif
+# endif
}
else
#elif !BFD_HOST_64BIT_LONG
break;
case 10:
-#if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
+#ifdef HAVE_LONG_LONG
if (sizeof (start) > sizeof (long))
{
-#ifndef __MSVCRT__
+# ifndef __MSVCRT__
printf ("%7lld ", (unsigned long long) start);
-#else
+# else
printf ("%7I64d ", (unsigned long long) start);
-#endif
+# endif
}
else
#elif !BFD_HOST_64BIT_LONG
break;
case 16:
-#if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
+#ifdef HAVE_LONG_LONG
if (sizeof (start) > sizeof (long))
{
-#ifndef __MSVCRT__
+# ifndef __MSVCRT__
printf ("%7llx ", (unsigned long long) start);
-#else
+# else
printf ("%7I64x ", (unsigned long long) start);
-#endif
+# endif
}
else
#elif !BFD_HOST_64BIT_LONG
putchar ('\n');
}
+ free (buf);
}
\f
static void
{
fprintf (stream, _("Usage: %s [option(s)] [file(s)]\n"), program_name);
fprintf (stream, _(" Display printable strings in [file(s)] (stdin by default)\n"));
- fprintf (stream, _(" The options are:\n\
+ fprintf (stream, _(" The options are:\n"));
+
+ if (DEFAULT_STRINGS_ALL)
+ fprintf (stream, _("\
+ -a - --all Scan the entire file, not just the data section [default]\n\
+ -d --data Only scan the data sections in the file\n"));
+ else
+ fprintf (stream, _("\
-a - --all Scan the entire file, not just the data section\n\
+ -d --data Only scan the data sections in the file [default]\n"));
+
+ fprintf (stream, _("\
-f --print-file-name Print the name of the file before each string\n\
-n --bytes=[number] Locate & print any NUL-terminated sequence of at\n\
-<number> least [number] characters (default 4).\n\
-t --radix={o,d,x} Print the location of the string in base 8, 10 or 16\n\
+ -w --include-all-whitespace Include all whitespace as valid string characters\n\
-o An alias for --radix=o\n\
-T --target=<BFDNAME> Specify the binary file format\n\
-e --encoding={s,S,b,l,B,L} Select character size and endianness:\n\
s = 7-bit, S = 8-bit, {b,l} = 16-bit, {B,L} = 32-bit\n\
@<file> Read options from <file>\n\
-h --help Display this information\n\
- -v --version Print the program's version number\n"));
+ -v -V --version Print the program's version number\n"));
list_supported_targets (program_name, stream);
if (REPORT_BUGS_TO[0] && status == 0)
fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
projects / deliverable / binutils-gdb.git / blobdiff