/* strings -- print the strings of printable characters in files
Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002 Free Software Foundation, Inc.
+ 2002, 2003 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
-o Like -to. (Some other implementations have -o like -to,
others like -td. We chose one arbitrarily.)
- --encoding={s,b,l,B,L}
- -e {s,b,l,B,L}
- Select character encoding: single-byte, bigendian 16-bit,
- littleendian 16-bit, bigendian 32-bit, littleendian 32-bit
+ --encoding={s,S,b,l,B,L}
+ -e {s,S,b,l,B,L}
+ Select character encoding: 7-bit-character, 8-bit-character,
+ bigendian 16-bit, littleendian 16-bit, bigendian 32-bit,
+ littleendian 32-bit.
--target=BFDNAME
Specify a non-default object file format.
#endif
#if O_BINARY
#include <io.h>
-#define SET_BINARY(f) do { if (!isatty(f)) setmode(f,O_BINARY); } while (0)
+#define SET_BINARY(f) do { if (!isatty (f)) setmode (f,O_BINARY); } while (0)
#endif
#endif
-#define isgraphic(c) (ISPRINT (c) || (c) == '\t')
+#define STRING_ISGRAPHIC(c) \
+ ( (c) >= 0 \
+ && (c) <= 255 \
+ && ((c) == '\t' || ISPRINT (c) || (encoding == 'S' && (c) > 127)))
#ifndef errno
extern int errno;
#ifdef HAVE_FOPEN64
typedef off64_t file_off;
-#define file_open(s,m) fopen64(s,m)
+#define file_open(s,m) fopen64(s, m)
#else
typedef off_t file_off;
-#define file_open(s,m) fopen(s,m)
+#define file_open(s,m) fopen(s, m)
#endif
/* Radix for printing addresses (must be 8, 10 or 16). */
{NULL, 0, NULL, 0}
};
-static void strings_a_section
- PARAMS ((bfd *, asection *, PTR));
-static bfd_boolean strings_object_file
- PARAMS ((const char *));
-static bfd_boolean strings_file
- PARAMS ((char *file));
-static int integer_arg
- PARAMS ((char *s));
-static void print_strings
- PARAMS ((const char *filename, FILE *stream, file_off address,
- int stop_point, int magiccount, char *magic));
-static void usage
- PARAMS ((FILE *stream, int status));
-static long get_char
- PARAMS ((FILE *stream, file_off *address, int *magiccount, char **magic));
+static void strings_a_section (bfd *, asection *, void *);
+static bfd_boolean strings_object_file (const char *);
+static bfd_boolean strings_file (char *file);
+static int integer_arg (char *s);
+static void print_strings (const char *, FILE *, file_off, int, int, char *);
+static void usage (FILE *, int);
+static long get_char (FILE *, file_off *, int *, char **);
\f
-int main
- PARAMS ((int, char **));
+int main (int, char **);
int
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char **argv)
{
int optc;
int exit_status = 0;
case 'n':
string_min = integer_arg (optarg);
if (string_min < 1)
- {
- fatal (_("invalid number %s"), optarg);
- }
+ fatal (_("invalid number %s"), optarg);
break;
case 'o':
switch (encoding)
{
+ case 'S':
case 's':
encoding_bytes = 1;
break;
set `got_a_section' and print the strings in it. */
static void
-strings_a_section (abfd, sect, filearg)
- bfd *abfd;
- asection *sect;
- PTR filearg;
+strings_a_section (bfd *abfd, asection *sect, void *filearg)
{
const char *file = (const char *) filearg;
if ((sect->flags & DATA_FLAGS) == DATA_FLAGS)
{
bfd_size_type sz = bfd_get_section_size_before_reloc (sect);
- PTR mem = xmalloc (sz);
+ void *mem = xmalloc (sz);
+
if (bfd_get_section_contents (abfd, sect, mem, (file_ptr) 0, sz))
{
got_a_section = TRUE;
FALSE if not (such as if FILE is not an object file). */
static bfd_boolean
-strings_object_file (file)
- const char *file;
+strings_object_file (const char *file)
{
bfd *abfd = bfd_openr (file, target);
if (abfd == NULL)
- {
- /* Treat the file as a non-object file. */
- return FALSE;
- }
+ /* Treat the file as a non-object file. */
+ return FALSE;
/* This call is mainly for its side effect of reading in the sections.
We follow the traditional behavior of `strings' in that we don't
}
got_a_section = FALSE;
- bfd_map_over_sections (abfd, strings_a_section, (PTR) file);
+ bfd_map_over_sections (abfd, strings_a_section, (void *) file);
if (!bfd_close (abfd))
{
/* Print the strings in FILE. Return TRUE if ok, FALSE if an error occurs. */
static bfd_boolean
-strings_file (file)
- char *file;
+strings_file (char *file)
{
/* If we weren't told to scan the whole file,
try to open it as an object file and only look at
MAGICCOUNT is how many characters are in it. */
static long
-get_char (stream, address, magiccount, magic)
- FILE *stream;
- file_off *address;
- int *magiccount;
- char **magic;
+get_char (FILE *stream, file_off *address, int *magiccount, char **magic)
{
int c, i;
long r = EOF;
switch (encoding)
{
+ case 'S':
case 's':
r = buf[0];
break;
Those characters come at address ADDRESS and the data in STREAM follow. */
static void
-print_strings (filename, stream, address, stop_point, magiccount, magic)
- const char *filename;
- FILE *stream;
- file_off address;
- int stop_point;
- int magiccount;
- char *magic;
+print_strings (const char *filename, FILE *stream, file_off address,
+ int stop_point, int magiccount, char *magic)
{
char *buf = (char *) xmalloc (sizeof (char) * (string_min + 1));
c = get_char (stream, &address, &magiccount, &magic);
if (c == EOF)
return;
- if (c > 255 || c < 0 || !isgraphic (c))
+ if (! STRING_ISGRAPHIC (c))
/* Found a non-graphic. Try again starting with next char. */
goto tryline;
buf[i] = c;
c = get_char (stream, &address, &magiccount, &magic);
if (c == EOF)
break;
- if (c > 255 || c < 0 || !isgraphic (c))
+ if (! STRING_ISGRAPHIC (c))
break;
putchar (c);
}
but allowing octal and hex numbers as in C. */
static int
-integer_arg (s)
- char *s;
+integer_arg (char *s)
{
int value;
int radix = 10;
p--;
if (*p)
- {
- fatal (_("invalid integer argument %s"), s);
- }
+ fatal (_("invalid integer argument %s"), s);
+
return value;
}
static void
-usage (stream, status)
- FILE *stream;
- int status;
+usage (FILE *stream, int status)
{
fprintf (stream, _("Usage: %s [option(s)] [file(s)]\n"), program_name);
fprintf (stream, _(" Display printable strings in [file(s)] (stdin by default)\n"));
-t --radix={o,x,d} Print the location of the string in base 8, 10 or 16\n\
-o An alias for --radix=o\n\
-T --target=<BFDNAME> Specify the binary file format\n\
- -e --encoding={s,b,l,B,L} Select character size and endianness:\n\
- s = 8-bit, {b,l} = 16-bit, {B,L} = 32-bit\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\
-h --help Display this information\n\
-v --version Print the program's version number\n"));
list_supported_targets (program_name, stream);