Add support for 'S' encoding to strings - display 8-bit characters.
This commit is contained in:
Nick Clifton
parent
f0a847b8c7
commit
8745eafadc
4 changed files with 45 additions and 31 deletions
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@ -1,3 +1,14 @@
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2002-12-23 Nick Clifton <nickc@redhat.com>
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* strings.c (isgraphic): Replace definition with STRING_ISGRAPHIC
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macro. Handle 'S' encoding, accepting 8-bit characters.
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(main): Parse 'S' encoding.
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(get_char): Accept 'S' encoding.
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(print_strings): Use STRING_ISGRAPHIC.
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(usage): Document support of 'S' encoding.
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* doc/binutils.texi: Document support of 'S' encoding/
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* NEWS: Mention new feature.
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2002-12-20 Alan Modra <amodra@bigpond.net.au>
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* README <building ar>: Don't use libibery's needed_list or
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@ -1,5 +1,7 @@
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-*- text -*-
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* Added 'S' encoding to strings to allow the display of 8-bit characters.
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* Added --prefix-symbols=<text>, --prefix-sections=<text> and
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--prefix-alloc-sections=<text> to objcopy.
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@ -1956,11 +1956,11 @@ octal, @samp{x} for hexadecimal, or @samp{d} for decimal.
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@item -e @var{encoding}
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@itemx --encoding=@var{encoding}
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Select the character encoding of the strings that are to be found.
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Possible values for @var{encoding} are: @samp{s} = single-byte
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characters (ASCII, ISO 8859, etc., default), @samp{b} = 16-bit
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Bigendian, @samp{l} = 16-bit Littleendian, @samp{B} = 32-bit Bigendian,
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@samp{L} = 32-bit Littleendian. Useful for finding wide character
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strings.
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Possible values for @var{encoding} are: @samp{s} = single-7-bit-byte
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characters (ASCII, ISO 8859, etc., default), @samp{S} =
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single-8-bit-byte characters, @samp{b} = 16-bit bigendian, @samp{l} =
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16-bit littleendian, @samp{B} = 32-bit bigendian, @samp{L} = 32-bit
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littleendian. Useful for finding wide character strings.
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@item --target=@var{bfdname}
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@cindex object code format
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@ -39,10 +39,11 @@
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-o Like -to. (Some other implementations have -o like -to,
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others like -td. We chose one arbitrarily.)
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--encoding={s,b,l,B,L}
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-e {s,b,l,B,L}
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Select character encoding: single-byte, bigendian 16-bit,
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littleendian 16-bit, bigendian 32-bit, littleendian 32-bit
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--encoding={s,S,b,l,B,L}
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-e {s,S,b,l,B,L}
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Select character encoding: 7-bit-character, 8-bit-character,
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bigendian 16-bit, littleendian 16-bit, bigendian 32-bit,
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littleendian 32-bit.
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--target=BFDNAME
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Specify a non-default object file format.
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@ -80,11 +81,14 @@
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#endif
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#if O_BINARY
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#include <io.h>
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#define SET_BINARY(f) do { if (!isatty(f)) setmode(f,O_BINARY); } while (0)
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#define SET_BINARY(f) do { if (!isatty (f)) setmode (f,O_BINARY); } while (0)
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#endif
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#endif
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#define isgraphic(c) (ISPRINT (c) || (c) == '\t')
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#define STRING_ISGRAPHIC(c) \
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( (c) >= 0 \
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&& (c) <= 255 \
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&& ((c) == '\t' || ISPRINT (c) || (encoding == 'S' && (c) > 127)))
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#ifndef errno
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extern int errno;
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@ -95,10 +99,10 @@ extern int errno;
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#ifdef HAVE_FOPEN64
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typedef off64_t file_off;
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#define file_open(s,m) fopen64(s,m)
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#define file_open(s,m) fopen64(s, m)
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#else
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typedef off_t file_off;
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#define file_open(s,m) fopen(s,m)
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#define file_open(s,m) fopen(s, m)
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#endif
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/* Radix for printing addresses (must be 8, 10 or 16). */
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@ -148,12 +152,11 @@ static bfd_boolean strings_file
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static int integer_arg
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PARAMS ((char *s));
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static void print_strings
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PARAMS ((const char *filename, FILE *stream, file_off address,
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int stop_point, int magiccount, char *magic));
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PARAMS ((const char *, FILE *, file_off, int, int, char *));
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static void usage
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PARAMS ((FILE *stream, int status));
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PARAMS ((FILE *, int));
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static long get_char
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PARAMS ((FILE *stream, file_off *address, int *magiccount, char **magic));
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PARAMS ((FILE *, file_off *, int *, char **));
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int main
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PARAMS ((int, char **));
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@ -202,9 +205,7 @@ main (argc, argv)
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case 'n':
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string_min = integer_arg (optarg);
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if (string_min < 1)
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{
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fatal (_("invalid number %s"), optarg);
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}
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fatal (_("invalid number %s"), optarg);
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break;
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case 'o':
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@ -267,6 +268,7 @@ main (argc, argv)
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switch (encoding)
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{
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case 'S':
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case 's':
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encoding_bytes = 1;
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break;
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@ -330,6 +332,7 @@ strings_a_section (abfd, sect, filearg)
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{
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bfd_size_type sz = bfd_get_section_size_before_reloc (sect);
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PTR mem = xmalloc (sz);
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if (bfd_get_section_contents (abfd, sect, mem, (file_ptr) 0, sz))
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{
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got_a_section = TRUE;
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@ -352,10 +355,8 @@ strings_object_file (file)
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bfd *abfd = bfd_openr (file, target);
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if (abfd == NULL)
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{
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/* Treat the file as a non-object file. */
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return FALSE;
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}
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/* Treat the file as a non-object file. */
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return FALSE;
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/* This call is mainly for its side effect of reading in the sections.
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We follow the traditional behavior of `strings' in that we don't
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@ -460,6 +461,7 @@ get_char (stream, address, magiccount, magic)
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switch (encoding)
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{
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case 'S':
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case 's':
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r = buf[0];
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break;
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@ -524,7 +526,7 @@ print_strings (filename, stream, address, stop_point, magiccount, magic)
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c = get_char (stream, &address, &magiccount, &magic);
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if (c == EOF)
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return;
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if (c > 255 || c < 0 || !isgraphic (c))
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if (! STRING_ISGRAPHIC (c))
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/* Found a non-graphic. Try again starting with next char. */
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goto tryline;
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buf[i] = c;
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@ -592,7 +594,7 @@ print_strings (filename, stream, address, stop_point, magiccount, magic)
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c = get_char (stream, &address, &magiccount, &magic);
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if (c == EOF)
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break;
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if (c > 255 || c < 0 || !isgraphic (c))
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if (! STRING_ISGRAPHIC (c))
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break;
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putchar (c);
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}
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@ -642,9 +644,8 @@ integer_arg (s)
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p--;
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if (*p)
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{
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fatal (_("invalid integer argument %s"), s);
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}
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fatal (_("invalid integer argument %s"), s);
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return value;
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}
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@ -663,8 +664,8 @@ usage (stream, status)
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-t --radix={o,x,d} Print the location of the string in base 8, 10 or 16\n\
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-o An alias for --radix=o\n\
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-T --target=<BFDNAME> Specify the binary file format\n\
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-e --encoding={s,b,l,B,L} Select character size and endianness:\n\
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s = 8-bit, {b,l} = 16-bit, {B,L} = 32-bit\n\
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-e --encoding={s,S,b,l,B,L} Select character size and endianness:\n\
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s = 7-bit, S = 8-bit, {b,l} = 16-bit, {B,L} = 32-bit\n\
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-h --help Display this information\n\
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-v --version Print the program's version number\n"));
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list_supported_targets (program_name, stream);
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