/* strings -- print the strings of printable characters in files
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
- Free Software Foundation, Inc.
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ 2002 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
#include "bfd.h"
#include <stdio.h>
-#include <getopt.h>
+#include "getopt.h"
#include <errno.h>
#include "bucomm.h"
#include "libiberty.h"
#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). */
/* Minimum length of sequence of graphic chars to trigger output. */
static int string_min;
-/* true means print address within file for each string. */
-static boolean print_addresses;
+/* TRUE means print address within file for each string. */
+static bfd_boolean print_addresses;
-/* true means print filename for each string. */
-static boolean print_filenames;
+/* TRUE means print filename for each string. */
+static bfd_boolean print_filenames;
-/* true means for object files scan only the data section. */
-static boolean datasection_only;
+/* TRUE means for object files scan only the data section. */
+static bfd_boolean datasection_only;
-/* true if we found an initialized data section in the current file. */
-static boolean got_a_section;
+/* TRUE if we found an initialized data section in the current file. */
+static bfd_boolean got_a_section;
/* The BFD object file format. */
static char *target;
{NULL, 0, NULL, 0}
};
-static void strings_a_section PARAMS ((bfd *, asection *, PTR));
-static boolean strings_object_file PARAMS ((const char *));
-static 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
+ 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 *, FILE *, file_off, int, int, char *));
+static void usage
+ PARAMS ((FILE *, int));
+static long get_char
+ PARAMS ((FILE *, file_off *, int *, char **));
\f
-int main PARAMS ((int, char **));
+int main
+ PARAMS ((int, char **));
int
main (argc, argv)
{
int optc;
int exit_status = 0;
- boolean files_given = false;
+ bfd_boolean files_given = FALSE;
#if defined (HAVE_SETLOCALE)
setlocale (LC_ALL, "");
program_name = argv[0];
xmalloc_set_program_name (program_name);
string_min = -1;
- print_addresses = false;
- print_filenames = false;
- datasection_only = true;
+ print_addresses = FALSE;
+ print_filenames = FALSE;
+ datasection_only = TRUE;
target = NULL;
encoding = 's';
- while ((optc = getopt_long (argc, argv, "afn:ot:e:v0123456789",
+ while ((optc = getopt_long (argc, argv, "afhHn:ot:e:Vv0123456789",
long_options, (int *) 0)) != EOF)
{
switch (optc)
{
case 'a':
- datasection_only = false;
+ datasection_only = FALSE;
break;
case 'f':
- print_filenames = true;
+ print_filenames = TRUE;
break;
+ case 'H':
case 'h':
usage (stdout, 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':
- print_addresses = true;
+ print_addresses = TRUE;
address_radix = 8;
break;
case 't':
- print_addresses = true;
+ print_addresses = TRUE;
if (optarg[1] != '\0')
usage (stderr, 1);
switch (optarg[0])
encoding = optarg[0];
break;
+ case 'V':
case 'v':
print_version ("strings");
break;
switch (encoding)
{
+ case 'S':
case 's':
encoding_bytes = 1;
break;
if (optind >= argc)
{
- datasection_only = false;
+ datasection_only = FALSE;
#ifdef SET_BINARY
SET_BINARY (fileno (stdin));
#endif
print_strings ("{standard input}", stdin, 0, 0, 0, (char *) NULL);
- files_given = true;
+ files_given = TRUE;
}
else
{
for (; optind < argc; ++optind)
{
if (strcmp (argv[optind], "-") == 0)
- datasection_only = false;
+ datasection_only = FALSE;
else
{
- files_given = true;
- exit_status |= (strings_file (argv[optind]) == false);
+ files_given = TRUE;
+ exit_status |= strings_file (argv[optind]) == FALSE;
}
}
}
- if (files_given == false)
+ if (!files_given)
usage (stderr, 1);
return (exit_status);
{
bfd_size_type sz = bfd_get_section_size_before_reloc (sect);
PTR mem = xmalloc (sz);
+
if (bfd_get_section_contents (abfd, sect, mem, (file_ptr) 0, sz))
{
- got_a_section = true;
+ got_a_section = TRUE;
print_strings (file, (FILE *) NULL, sect->filepos, 0, sz, mem);
}
free (mem);
/* Scan all of the sections in FILE, and print the strings
in the initialized data section(s).
- Return true if successful,
- false if not (such as if FILE is not an object file). */
+ Return TRUE if successful,
+ FALSE if not (such as if FILE is not an object file). */
-static boolean
+static bfd_boolean
strings_object_file (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
complain if we don't recognize a file to be an object file. */
- if (bfd_check_format (abfd, bfd_object) == false)
+ if (!bfd_check_format (abfd, bfd_object))
{
bfd_close (abfd);
- return false;
+ return FALSE;
}
- got_a_section = false;
+ got_a_section = FALSE;
bfd_map_over_sections (abfd, strings_a_section, (PTR) file);
if (!bfd_close (abfd))
{
bfd_nonfatal (file);
- return false;
+ return FALSE;
}
return got_a_section;
}
-/* Print the strings in FILE. Return true if ok, false if an error occurs. */
+/* Print the strings in FILE. Return TRUE if ok, FALSE if an error occurs. */
-static boolean
+static bfd_boolean
strings_file (file)
char *file;
{
{
fprintf (stderr, "%s: ", program_name);
perror (file);
- return false;
+ return FALSE;
}
print_strings (file, stream, (file_off) 0, 0, 0, (char *) 0);
{
fprintf (stderr, "%s: ", program_name);
perror (file);
- return false;
+ return FALSE;
}
}
- return true;
+ return TRUE;
}
\f
/* Read the next character, return EOF if none available.
switch (encoding)
{
+ case 'S':
case 's':
r = buf[0];
break;
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);
}
p--;
if (*p)
- {
- fatal (_("invalid integer argument %s"), s);
- }
+ fatal (_("invalid integer argument %s"), s);
+
return value;
}
FILE *stream;
int status;
{
- fprintf (stream, _("\
-Usage: %s [-afov] [-n min-len] [-min-len] [-t {o,x,d}] [-e {s,b,l,B,L}]\n\
- [-] [--all] [--print-file-name] [--bytes=min-len] [--radix={o,x,d}]\n\
- [--target=bfdname] [--encoding {s,b,l,B,L}] [--help] [--version] file...\n"),
- program_name);
+ 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\
+ -a - --all Scan the entire file, not just the data section\n\
+ -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,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,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);
if (status == 0)
fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
projects / binutils-gdb.git / blobdiff