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Diffstat (limited to 'binutils/strings.c')
| -rw-r--r-- | binutils/strings.c | 514 |
1 files changed, 0 insertions, 514 deletions
diff --git a/binutils/strings.c b/binutils/strings.c deleted file mode 100644 index 8ffe6a16625..00000000000 --- a/binutils/strings.c +++ /dev/null @@ -1,514 +0,0 @@ -/* strings -- print the strings of printable characters in files - Copyright (C) 1993, 94, 95, 96, 97, 98, 1999 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 - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ - -/* Usage: strings [options] file... - - Options: - --all - -a - - Do not scan only the initialized data section of object files. - - --print-file-name - -f Print the name of the file before each string. - - --bytes=min-len - -n min-len - -min-len Print graphic char sequences, MIN-LEN or more bytes long, - that are followed by a NUL or a newline. Default is 4. - - --radix={o,x,d} - -t {o,x,d} Print the offset within the file before each string, - in octal/hex/decimal. - - -o Like -to. (Some other implementations have -o like -to, - others like -td. We chose one arbitrarily.) - - --target=BFDNAME - Specify a non-default object file format. - - --help - -h Print the usage message on the standard output. - - --version - -v Print the program version number. - - Written by Richard Stallman <rms@gnu.ai.mit.edu> - and David MacKenzie <djm@gnu.ai.mit.edu>. */ - -#include "bfd.h" -#include <stdio.h> -#include <getopt.h> -#include <ctype.h> -#include <errno.h> -#include "bucomm.h" -#include "libiberty.h" - -#ifdef isascii -#define isgraphic(c) (isascii (c) && isprint (c)) -#else -#define isgraphic(c) (isprint (c)) -#endif - -#ifndef errno -extern int errno; -#endif - -/* The BFD section flags that identify an initialized data section. */ -#define DATA_FLAGS (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS) - -/* 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; - -/* true means print address within file for each string. */ -static boolean print_addresses; - -/* true means print filename for each string. */ -static boolean print_filenames; - -/* true means for object files scan only the data section. */ -static boolean datasection_only; - -/* true if we found an initialized data section in the current file. */ -static boolean got_a_section; - -/* The BFD object file format. */ -static char *target; - -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'}, - {"target", required_argument, NULL, 'T'}, - {"help", no_argument, NULL, 'h'}, - {"version", no_argument, NULL, 'v'}, - {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_ptr address, int stop_point, - int magiccount, char *magic)); -static void usage PARAMS ((FILE *stream, int status)); - -int -main (argc, argv) - int argc; - char **argv; -{ - int optc; - int exit_status = 0; - boolean files_given = false; - -#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) - setlocale (LC_MESSAGES, ""); -#endif - bindtextdomain (PACKAGE, LOCALEDIR); - textdomain (PACKAGE); - - program_name = argv[0]; - xmalloc_set_program_name (program_name); - string_min = -1; - print_addresses = false; - print_filenames = false; - datasection_only = true; - target = NULL; - - while ((optc = getopt_long (argc, argv, "afn:ot:v0123456789", - long_options, (int *) 0)) != EOF) - { - switch (optc) - { - case 'a': - datasection_only = false; - break; - - case 'f': - print_filenames = true; - break; - - case 'h': - usage (stdout, 0); - - case 'n': - string_min = integer_arg (optarg); - if (string_min < 1) - { - fprintf (stderr, _("%s: invalid number %s\n"), - program_name, optarg); - exit (1); - } - break; - - case 'o': - print_addresses = true; - address_radix = 8; - break; - - case 't': - print_addresses = true; - if (optarg[1] != '\0') - usage (stderr, 1); - switch (optarg[0]) - { - case 'o': - address_radix = 8; - break; - - case 'd': - address_radix = 10; - break; - - case 'x': - address_radix = 16; - break; - - default: - usage (stderr, 1); - } - break; - - case 'T': - target = optarg; - break; - - case 'v': - print_version ("strings"); - break; - - case '?': - usage (stderr, 1); - - default: - if (string_min < 0) - string_min = optc; - else - string_min = string_min * 10 + optc - '0'; - break; - } - } - - if (string_min < 0) - string_min = 4; - - bfd_init (); - set_default_bfd_target (); - - if (optind >= argc) - { - datasection_only = false; - print_strings ("{standard input}", stdin, 0, 0, 0, (char *) NULL); - files_given = true; - } - else - { - for (; optind < argc; ++optind) - { - if (strcmp (argv[optind], "-") == 0) - datasection_only = false; - else - { - files_given = true; - exit_status |= (strings_file (argv[optind]) == false); - } - } - } - - if (files_given == false) - usage (stderr, 1); - - return (exit_status); -} - -/* Scan section SECT of the file ABFD, whose printable name is FILE. - If it contains initialized data, - set `got_a_section' and print the strings in it. */ - -static void -strings_a_section (abfd, sect, filearg) - bfd *abfd; - asection *sect; - PTR 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); - if (bfd_get_section_contents (abfd, sect, mem, (file_ptr) 0, sz)) - { - 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). */ - -static 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; - } - - /* 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) - { - bfd_close (abfd); - return 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 got_a_section; -} - -/* Print the strings in FILE. Return true if ok, false if an error occurs. */ - -static boolean -strings_file (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 - initialized data sections. If that fails, fall back to the - whole file. */ - if (!datasection_only || !strings_object_file (file)) - { - FILE *stream; - - stream = fopen (file, "rb"); - /* Not all systems permit "rb", so try "r" if it failed. */ - if (stream == NULL) - stream = fopen (file, "r"); - if (stream == NULL) - { - fprintf (stderr, "%s: ", program_name); - perror (file); - return false; - } - - print_strings (file, stream, (file_ptr) 0, 0, 0, (char *) 0); - - if (fclose (stream) == EOF) - { - fprintf (stderr, "%s: ", program_name); - perror (file); - return false; - } - } - - return true; -} - -/* 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. - Stop reading at address STOP_POINT in the file, if nonzero. - - 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. - 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_ptr address; - int stop_point; - int magiccount; - char *magic; -{ - char *buf = (char *) xmalloc (string_min + 1); - - while (1) - { - file_ptr start; - int i; - int c; - - /* See if the next `string_min' chars are all graphic chars. */ - tryline: - if (stop_point && address >= stop_point) - break; - 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)) - /* Found a non-graphic. Try again starting with next char. */ - goto tryline; - buf[i] = c; - } - - /* We found a run of `string_min' graphic characters. Print up - to the next non-graphic character. */ - - if (print_filenames) - printf ("%s: ", filename); - if (print_addresses) - switch (address_radix) - { - case 8: - printf ("%7lo ", (unsigned long) start); - break; - - case 10: - printf ("%7ld ", (long) start); - break; - - case 16: - printf ("%7lx ", (unsigned long) start); - break; - } - - buf[i] = '\0'; - fputs (buf, stdout); - - while (1) - { - if (magiccount) - { - magiccount--; - c = *magic++; - } - else - { - if (stream == NULL) - break; - c = getc (stream); - if (c == EOF) - break; - } - address++; - if (! isgraphic (c)) - break; - putchar (c); - } - - putchar ('\n'); - } -} - -/* Parse string S as an integer, using decimal radix by default, - but allowing octal and hex numbers as in C. */ - -static int -integer_arg (s) - char *s; -{ - int value; - int radix = 10; - char *p = s; - int c; - - if (*p != '0') - radix = 10; - else if (*++p == 'x') - { - radix = 16; - p++; - } - else - radix = 8; - - value = 0; - while (((c = *p++) >= '0' && c <= '9') - || (radix == 16 && (c & ~40) >= 'A' && (c & ~40) <= 'Z')) - { - value *= radix; - if (c >= '0' && c <= '9') - value += c - '0'; - else - value += (c & ~40) - 'A'; - } - - if (c == 'b') - value *= 512; - else if (c == 'B') - value *= 1024; - else - p--; - - if (*p) - { - fprintf (stderr, _("%s: invalid integer argument %s\n"), program_name, s); - exit (1); - } - return value; -} - -static void -usage (stream, status) - FILE *stream; - 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"), - program_name); - list_supported_targets (program_name, stream); - if (status == 0) - fprintf (stream, _("Report bugs to bug-gnu-utils@gnu.org\n")); - exit (status); -} |