diff options
Diffstat (limited to 'scripts/binoffset.c')
| -rw-r--r-- | scripts/binoffset.c | 163 | 
1 files changed, 0 insertions, 163 deletions
| diff --git a/scripts/binoffset.c b/scripts/binoffset.c deleted file mode 100644 index 1a2e39b8e3e..00000000000 --- a/scripts/binoffset.c +++ /dev/null @@ -1,163 +0,0 @@ -/*************************************************************************** - * binoffset.c - * (C) 2002 Randy Dunlap <rdunlap@xenotime.net> - -#   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 of the License, 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., 675 Mass Ave, Cambridge, MA 02139, USA. - -# binoffset.c: -# - searches a (binary) file for a specified (binary) pattern -# - returns the offset of the located pattern or ~0 if not found -# - exits with exit status 0 normally or non-0 if pattern is not found -#   or any other error occurs. - -****************************************************************/ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <fcntl.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/mman.h> - -#define VERSION		"0.1" -#define BUF_SIZE	(16 * 1024) -#define PAT_SIZE	100 - -char		*progname; -char		*inputname; -int		inputfd; -unsigned int	bix;			/* buf index */ -unsigned char	patterns [PAT_SIZE] = {0}; /* byte-sized pattern array */ -int		pat_len;		/* actual number of pattern bytes */ -unsigned char	*madr;			/* mmap address */ -size_t		filesize; -int		num_matches = 0; -off_t		firstloc = 0; - -void usage (void) -{ -	fprintf (stderr, "%s ver. %s\n", progname, VERSION); -	fprintf (stderr, "usage:  %s filename pattern_bytes\n", -			progname); -	fprintf (stderr, "        [prints location of pattern_bytes in file]\n"); -	exit (1); -} - -void get_pattern (int pat_count, char *pats []) -{ -	int ix, err, tmp; - -#ifdef DEBUG -	fprintf (stderr,"get_pattern: count = %d\n", pat_count); -	for (ix = 0; ix < pat_count; ix++) -		fprintf (stderr, "  pat # %d:  [%s]\n", ix, pats[ix]); -#endif - -	for (ix = 0; ix < pat_count; ix++) { -		tmp = 0; -		err = sscanf (pats[ix], "%5i", &tmp); -		if (err != 1 || tmp > 0xff) { -			fprintf (stderr, "pattern or value error in pattern # %d [%s]\n", -					ix, pats[ix]); -			usage (); -		} -		patterns [ix] = tmp; -	} -	pat_len = pat_count; -} - -void search_pattern (void) -{ -	for (bix = 0; bix < filesize; bix++) { -		if (madr[bix] == patterns[0]) { -			if (memcmp (&madr[bix], patterns, pat_len) == 0) { -				if (num_matches == 0) -					firstloc = bix; -				num_matches++; -			} -		} -	} -} - -#ifdef NOTDEF -size_t get_filesize (int fd) -{ -	off_t end_off = lseek (fd, 0, SEEK_END); -	lseek (fd, 0, SEEK_SET); -	return (size_t) end_off; -} -#endif - -size_t get_filesize (int fd) -{ -	int err; -	struct stat stat; - -	err = fstat (fd, &stat); -	fprintf (stderr, "filesize: %ld\n", err < 0 ? (long)err : stat.st_size); -	if (err < 0) -		return err; -	return (size_t) stat.st_size; -} - -int main (int argc, char *argv []) -{ -	progname = argv[0]; - -	if (argc < 3) -		usage (); - -	get_pattern (argc - 2, argv + 2); - -	inputname = argv[1]; - -	inputfd = open (inputname, O_RDONLY); -	if (inputfd == -1) { -		fprintf (stderr, "%s: cannot open '%s'\n", -				progname, inputname); -		exit (3); -	} - -	filesize = get_filesize (inputfd); - -	madr = mmap (0, filesize, PROT_READ, MAP_PRIVATE, inputfd, 0); -	if (madr == MAP_FAILED) { -		fprintf (stderr, "mmap error = %d\n", errno); -		close (inputfd); -		exit (4); -	} - -	search_pattern (); - -	if (munmap (madr, filesize)) -		fprintf (stderr, "munmap error = %d\n", errno); - -	if (close (inputfd)) -		fprintf (stderr, "%s: error %d closing '%s'\n", -				progname, errno, inputname); - -	fprintf (stderr, "number of pattern matches = %d\n", num_matches); -	if (num_matches == 0) -		firstloc = ~0; -	printf ("%ld\n", firstloc); -	fprintf (stderr, "%ld\n", firstloc); - -	exit (num_matches ? 0 : 2); -} - -/* end binoffset.c */ | 
