/* strings -- print the strings of printable characters in files
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
-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
+
--target=BFDNAME
Specify a non-default object file format.
Written by Richard Stallman <rms@gnu.ai.mit.edu>
and David MacKenzie <djm@gnu.ai.mit.edu>. */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
#include "bfd.h"
#include <stdio.h>
#include <getopt.h>
-#include <ctype.h>
#include <errno.h>
#include "bucomm.h"
#include "libiberty.h"
+#include "safe-ctype.h"
/* Some platforms need to put stdin into binary mode, to read
binary files. */
#endif
#endif
-/* Not all printable characters have ASCII codes (depending upon the
- LOCALE set) but on some older systems it is not safe to test isprint
- without first testing isascii... */
-#if defined isascii && !defined HAVE_LOCALE_H
-#define isgraphic(c) (isascii (c) && (isprint (c) || (c) == '\t'))
-#else
-#define isgraphic(c) (isprint (c) || (c) == '\t')
-#endif
+#define isgraphic(c) (ISPRINT (c) || (c) == '\t')
#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
+
/* Radix for printing addresses (must be 8, 10 or 16). */
static int address_radix;
/* The BFD object file format. */
static char *target;
+/* The character encoding format. */
+static char encoding;
+static int encoding_bytes;
+
static struct option long_options[] =
{
{"all", no_argument, NULL, 'a'},
{"print-file-name", no_argument, NULL, 'f'},
{"bytes", required_argument, NULL, 'n'},
{"radix", required_argument, NULL, 't'},
+ {"encoding", required_argument, NULL, 'e'},
{"target", required_argument, NULL, 'T'},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'v'},
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_ptr address, int stop_point,
+ 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));
\f
+int main PARAMS ((int, char **));
+
int
main (argc, argv)
int argc;
int exit_status = 0;
boolean files_given = false;
-#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
+#if defined (HAVE_SETLOCALE)
setlocale (LC_ALL, "");
#endif
bindtextdomain (PACKAGE, LOCALEDIR);
print_filenames = false;
datasection_only = true;
target = NULL;
+ encoding = 's';
- while ((optc = getopt_long (argc, argv, "afn:ot:v0123456789",
+ while ((optc = getopt_long (argc, argv, "afn:ot:e:v0123456789",
long_options, (int *) 0)) != EOF)
{
switch (optc)
target = optarg;
break;
+ case 'e':
+ if (optarg[1] != '\0')
+ usage (stderr, 1);
+ encoding = optarg[0];
+ break;
+
case 'v':
print_version ("strings");
break;
if (string_min < 0)
string_min = 4;
+ switch (encoding)
+ {
+ case 's':
+ encoding_bytes = 1;
+ break;
+ case 'b':
+ case 'l':
+ encoding_bytes = 2;
+ break;
+ case 'B':
+ case 'L':
+ encoding_bytes = 4;
+ break;
+ default:
+ usage (stderr, 1);
+ }
+
bfd_init ();
set_default_bfd_target ();
{
FILE *stream;
- stream = fopen (file, "rb");
- /* Not all systems permit "rb", so try "r" if it failed. */
- if (stream == NULL)
- stream = fopen (file, "r");
+ stream = file_open (file, FOPEN_RB);
if (stream == NULL)
{
fprintf (stderr, "%s: ", program_name);
return false;
}
- print_strings (file, stream, (file_ptr) 0, 0, 0, (char *) 0);
+ print_strings (file, stream, (file_off) 0, 0, 0, (char *) 0);
if (fclose (stream) == EOF)
{
return true;
}
\f
+/* Read the next character, return EOF if none available.
+ Assume that STREAM is positioned so that the next byte read
+ is at address ADDRESS in the file.
+
+ If STREAM is NULL, do not read from it.
+ The caller can supply a buffer of characters
+ to be processed before the data in STREAM.
+ MAGIC is the address of the buffer and
+ 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;
+{
+ int c, i;
+ long r = EOF;
+ unsigned char buf[4];
+
+ for (i = 0; i < encoding_bytes; i++)
+ {
+ if (*magiccount)
+ {
+ (*magiccount)--;
+ c = *(*magic)++;
+ }
+ else
+ {
+ if (stream == NULL)
+ return EOF;
+#ifdef HAVE_GETC_UNLOCKED
+ c = getc_unlocked (stream);
+#else
+ c = getc (stream);
+#endif
+ if (c == EOF)
+ return EOF;
+ }
+
+ (*address)++;
+ buf[i] = c;
+ }
+
+ switch (encoding)
+ {
+ case 's':
+ r = buf[0];
+ break;
+ case 'b':
+ r = (buf[0] << 8) | buf[1];
+ 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];
+ break;
+ case 'L':
+ r = buf[0] | ((long) buf[1] << 8) | ((long) buf[2] << 16) |
+ ((long) buf[3] << 24);
+ break;
+ }
+
+ if (r == EOF)
+ return 0;
+
+ return r;
+}
+\f
/* Find the strings in file FILENAME, read from STREAM.
Assume that STREAM is positioned so that the next byte read
is at address ADDRESS in the file.
print_strings (filename, stream, address, stop_point, magiccount, magic)
const char *filename;
FILE *stream;
- file_ptr address;
+ file_off address;
int stop_point;
int magiccount;
char *magic;
{
- char *buf = (char *) xmalloc (string_min + 1);
+ char *buf = (char *) xmalloc (sizeof (char) * (string_min + 1));
while (1)
{
- file_ptr start;
+ file_off start;
int i;
- int c;
+ long c;
/* See if the next `string_min' chars are all graphic chars. */
tryline:
start = address;
for (i = 0; i < string_min; i++)
{
- if (magiccount)
- {
- magiccount--;
- c = *magic++;
- }
- else
- {
- if (stream == NULL)
- return;
- c = getc (stream);
- if (c == EOF)
- return;
- }
- address++;
- if (!isgraphic (c))
+ c = get_char (stream, &address, &magiccount, &magic);
+ if (c == EOF)
+ return;
+ if (c > 255 || c < 0 || !isgraphic (c))
/* Found a non-graphic. Try again starting with next char. */
goto tryline;
buf[i] = c;
switch (address_radix)
{
case 8:
- printf ("%7lo ", (unsigned long) start);
+#if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
+ if (sizeof (start) > sizeof (long))
+ printf ("%7Lo ", (unsigned long long) start);
+ else
+#else
+# if !BFD_HOST_64BIT_LONG
+ if (start != (unsigned long) start)
+ printf ("++%7lo ", (unsigned long) start);
+ else
+# endif
+#endif
+ printf ("%7lo ", (unsigned long) start);
break;
case 10:
- printf ("%7ld ", (long) start);
+#if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
+ if (sizeof (start) > sizeof (long))
+ printf ("%7Ld ", (unsigned long long) start);
+ else
+#else
+# if !BFD_HOST_64BIT_LONG
+ if (start != (unsigned long) start)
+ printf ("++%7ld ", (unsigned long) start);
+ else
+# endif
+#endif
+ printf ("%7ld ", (long) start);
break;
case 16:
- printf ("%7lx ", (unsigned long) start);
+#if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
+ if (sizeof (start) > sizeof (long))
+ printf ("%7Lx ", (unsigned long long) start);
+ else
+#else
+# if !BFD_HOST_64BIT_LONG
+ if (start != (unsigned long) start)
+ printf ("%lx%8.8lx ", start >> 32, start & 0xffffffff);
+ else
+# endif
+#endif
+ printf ("%7lx ", (unsigned long) start);
break;
}
while (1)
{
- if (magiccount)
- {
- magiccount--;
- c = *magic++;
- }
- else
- {
- if (stream == NULL)
- break;
- c = getc (stream);
- if (c == EOF)
- break;
- }
- address++;
- if (! isgraphic (c))
+ c = get_char (stream, &address, &magiccount, &magic);
+ if (c == EOF)
+ break;
+ if (c > 255 || c < 0 || !isgraphic (c))
break;
putchar (c);
}
int status;
{
fprintf (stream, _("\
-Usage: %s [-afov] [-n min-len] [-min-len] [-t {o,x,d}] [-]\n\
- [--all] [--print-file-name] [--bytes=min-len] [--radix={o,x,d}]\n\
- [--target=bfdname] [--help] [--version] file...\n"),
+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);
list_supported_targets (program_name, stream);
if (status == 0)
projects / binutils-gdb.git / blobdiff