869 lines
23 KiB
C
869 lines
23 KiB
C
/* xxd: my hexdump facility. jw
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*
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* 2.10.90 changed to word output
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* 3.03.93 new indent style, dumb bug inserted and fixed.
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* -c option, mls
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* 26.04.94 better option parser, -ps, -l, -s added.
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* 1.07.94 -r badly needs - as input file. Per default autoskip over
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* consecutive lines of zeroes, as unix od does.
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* -a shows them too.
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* -i dump as c-style #include "file.h"
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* 1.11.95 if "xxd -i" knows the filename, an 'unsigned char filename_bits[]'
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* array is written in correct c-syntax.
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* -s improved, now defaults to absolute seek, relative requires a '+'.
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* -r improved, now -r -s -0x... is supported.
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* change/suppress leading '\0' bytes.
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* -l n improved: stops exactly after n bytes.
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* -r improved, better handling of partial lines with trailing garbage.
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* -r improved, now -r -p works again!
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* -r improved, less flushing, much faster now! (that was silly)
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* 3.04.96 Per repeated request of a single person: autoskip defaults to off.
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* 15.05.96 -v added. They want to know the version.
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* -a fixed, to show last line inf file ends in all zeros.
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* -u added: Print upper case hex-letters, as preferred by unix bc.
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* -h added to usage message. Usage message extended.
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* Now using outfile if specified even in normal mode, aehem.
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* No longer mixing of ints and longs. May help doze people.
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* Added binify ioctl for same reason. (Enough Doze stress for 1996!)
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* 16.05.96 -p improved, removed occasional superfluous linefeed.
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* 20.05.96 -l 0 fixed. tried to read anyway.
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* 21.05.96 -i fixed. now honours -u, and prepends __ to numeric filenames.
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* compile -DWIN32 for NT or W95. George V. Reilly, * -v improved :-)
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* support --gnuish-longhorn-options
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* 25.05.96 MAC support added: CodeWarrior already uses ``outline'' in Types.h
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* which is included by MacHeaders (Axel Kielhorn). Renamed to
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* xxdline().
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* 7.06.96 -i printed 'int' instead of 'char'. *blush*
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* added Bram's OS2 ifdefs...
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* 18.07.96 gcc -Wall @ SunOS4 is now slient.
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* Added osver for MSDOS/DJGPP/WIN32.
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* 29.08.96 Added size_t to strncmp() for Amiga.
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* 24.03.97 Windows NT support (Phil Hanna). Clean exit for Amiga WB (Bram)
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* 02.04.97 Added -E option, to have EBCDIC translation instead of ASCII
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* (azc10@yahoo.com)
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* 22.05.97 added -g (group octets) option (jcook@namerica.kla.com).
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* 23.09.98 nasty -p -r misfeature fixed: slightly wrong output, when -c was
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* missing or wrong.
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* 26.09.98 Fixed: 'xxd -i infile outfile' did not truncate outfile.
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* 27.10.98 Fixed: -g option parser required blank.
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* option -b added: 01000101 binary output in normal format.
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* 16.05.00 Added VAXC changes by Stephen P. Wall
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* 16.05.00 Improved MMS file and merge for VMS by Zoltan Arpadffy
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* 2011 March Better error handling by Florian Zumbiehl.
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* 2011 April Formatting by Bram Moolenaar
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* 08.06.2013 Little-endian hexdump (-e) and offset (-o) by Vadim Vygonets.
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*
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* (c) 1990-1998 by Juergen Weigert (jnweiger@informatik.uni-erlangen.de)
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*
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* I hereby grant permission to distribute and use xxd
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* under X11-MIT or GPL-2.0 (at the user's choice).
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*
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* Small changes made afterwards by Bram Moolenaar et al.
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*
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* Distribute freely and credit me,
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* make money and share with me,
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* lose money and don't ask me.
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*/
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/* Visual Studio 2005 has 'deprecated' many of the standard CRT functions */
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#if _MSC_VER >= 1400
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# define _CRT_SECURE_NO_DEPRECATE
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# define _CRT_NONSTDC_NO_DEPRECATE
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#endif
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#if !defined(CYGWIN) && (defined(CYGWIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__))
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# define CYGWIN
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#endif
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#include <stdio.h>
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#ifdef VAXC
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# include <file.h>
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#else
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# include <fcntl.h>
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#endif
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#if defined(WIN32) || defined(__BORLANDC__) || defined(CYGWIN)
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# include <io.h> /* for setmode() */
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#else
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# ifdef UNIX
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# include <unistd.h>
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# endif
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#endif
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#include <stdlib.h>
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#include <string.h> /* for strncmp() */
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#include <ctype.h> /* for isalnum() */
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#if __MWERKS__ && !defined(BEBOX)
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# include <unix.h> /* for fdopen() on MAC */
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#endif
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#if defined(__BORLANDC__) && __BORLANDC__ <= 0x0410 && !defined(fileno)
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/* Missing define and prototype grabbed from the BC 4.0 <stdio.h> */
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# define fileno(f) ((f)->fd)
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FILE _FAR *_Cdecl _FARFUNC fdopen(int __handle, char _FAR *__type);
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#endif
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/* This corrects the problem of missing prototypes for certain functions
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* in some GNU installations (e.g. SunOS 4.1.x).
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* Darren Hiebert <darren@hmi.com> (sparc-sun-sunos4.1.3_U1/2.7.2.2)
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*/
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#if defined(__GNUC__) && defined(__STDC__)
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# ifndef __USE_FIXED_PROTOTYPES__
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# define __USE_FIXED_PROTOTYPES__
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# endif
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#endif
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#ifndef __USE_FIXED_PROTOTYPES__
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/*
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* This is historic and works only if the compiler really has no prototypes:
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*
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* Include prototypes for Sun OS 4.x, when using an ANSI compiler.
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* FILE is defined on OS 4.x, not on 5.x (Solaris).
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* if __SVR4 is defined (some Solaris versions), don't include this.
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*/
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#if defined(sun) && defined(FILE) && !defined(__SVR4) && defined(__STDC__)
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# define __P(a) a
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/* excerpt from my sun_stdlib.h */
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extern int fprintf __P((FILE *, char *, ...));
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extern int fputs __P((char *, FILE *));
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extern int _flsbuf __P((unsigned char, FILE *));
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extern int _filbuf __P((FILE *));
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extern int fflush __P((FILE *));
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extern int fclose __P((FILE *));
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extern int fseek __P((FILE *, long, int));
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extern int rewind __P((FILE *));
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extern void perror __P((char *));
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# endif
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#endif
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extern long int strtol();
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extern long int ftell();
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char version[] = "xxd V1.10 27oct98 by Juergen Weigert";
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#ifdef WIN32
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char osver[] = " (Win32)";
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#else
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char osver[] = "";
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#endif
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#if defined(WIN32)
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# define BIN_READ(yes) ((yes) ? "rb" : "rt")
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# define BIN_WRITE(yes) ((yes) ? "wb" : "wt")
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# define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT)
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# define BIN_ASSIGN(fp, yes) setmode(fileno(fp), (yes) ? O_BINARY : O_TEXT)
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# define PATH_SEP '\\'
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#elif defined(CYGWIN)
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# define BIN_READ(yes) ((yes) ? "rb" : "rt")
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# define BIN_WRITE(yes) ((yes) ? "wb" : "w")
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# define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT)
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# define BIN_ASSIGN(fp, yes) ((yes) ? (void) setmode(fileno(fp), O_BINARY) : (void) (fp))
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# define PATH_SEP '/'
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#else
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# ifdef VMS
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# define BIN_READ(dummy) "r"
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# define BIN_WRITE(dummy) "w"
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# define BIN_CREAT(dummy) O_CREAT
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# define BIN_ASSIGN(fp, dummy) fp
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# define PATH_SEP ']'
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# define FILE_SEP '.'
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# else
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# define BIN_READ(dummy) "r"
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# define BIN_WRITE(dummy) "w"
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# define BIN_CREAT(dummy) O_CREAT
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# define BIN_ASSIGN(fp, dummy) fp
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# define PATH_SEP '/'
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# endif
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#endif
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/* open has only to arguments on the Mac */
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#if __MWERKS__
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# define OPEN(name, mode, umask) open(name, mode)
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#else
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# define OPEN(name, mode, umask) open(name, mode, umask)
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#endif
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#ifdef AMIGA
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# define STRNCMP(s1, s2, l) strncmp(s1, s2, (size_t)l)
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#else
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# define STRNCMP(s1, s2, l) strncmp(s1, s2, l)
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#endif
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#ifndef __P
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# if defined(__STDC__) || defined(WIN32) || defined(__BORLANDC__)
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# define __P(a) a
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# else
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# define __P(a) ()
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# endif
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#endif
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/* Let's collect some prototypes */
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/* CodeWarrior is really picky about missing prototypes */
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static void exit_with_usage __P((void));
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static void die __P((int));
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static int huntype __P((FILE *, FILE *, FILE *, int, int, long));
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static void xxdline __P((FILE *, char *, int));
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#define TRY_SEEK /* attempt to use lseek, or skip forward by reading */
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#define COLS 256 /* change here, if you ever need more columns */
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#define LLEN (12 + (9*COLS-1) + COLS + 2)
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char hexxa[] = "0123456789abcdef0123456789ABCDEF", *hexx = hexxa;
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/* the different hextypes known by this program: */
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#define HEX_NORMAL 0
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#define HEX_POSTSCRIPT 1
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#define HEX_CINCLUDE 2
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#define HEX_BITS 3 /* not hex a dump, but bits: 01111001 */
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#define HEX_LITTLEENDIAN 4
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static char *pname;
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static void
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exit_with_usage(void)
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{
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fprintf(stderr, "Usage:\n %s [options] [infile [outfile]]\n", pname);
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fprintf(stderr, " or\n %s -r [-s [-]offset] [-c cols] [-ps] [infile [outfile]]\n", pname);
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fprintf(stderr, "Options:\n");
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fprintf(stderr, " -a toggle autoskip: A single '*' replaces nul-lines. Default off.\n");
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fprintf(stderr, " -b binary digit dump (incompatible with -ps,-i,-r). Default hex.\n");
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fprintf(stderr, " -c cols format <cols> octets per line. Default 16 (-i: 12, -ps: 30).\n");
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fprintf(stderr, " -E show characters in EBCDIC. Default ASCII.\n");
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fprintf(stderr, " -e little-endian dump (incompatible with -ps,-i,-r).\n");
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fprintf(stderr, " -g number of octets per group in normal output. Default 2 (-e: 4).\n");
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fprintf(stderr, " -h print this summary.\n");
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fprintf(stderr, " -i output in C include file style.\n");
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fprintf(stderr, " -l len stop after <len> octets.\n");
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fprintf(stderr, " -o off add <off> to the displayed file position.\n");
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fprintf(stderr, " -ps output in postscript plain hexdump style.\n");
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fprintf(stderr, " -r reverse operation: convert (or patch) hexdump into binary.\n");
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fprintf(stderr, " -r -s off revert with <off> added to file positions found in hexdump.\n");
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fprintf(stderr, " -s %sseek start at <seek> bytes abs. %sinfile offset.\n",
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#ifdef TRY_SEEK
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"[+][-]", "(or +: rel.) ");
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#else
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"", "");
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#endif
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fprintf(stderr, " -u use upper case hex letters.\n");
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fprintf(stderr, " -v show version: \"%s%s\".\n", version, osver);
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exit(1);
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}
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static void
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die(int ret)
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{
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fprintf(stderr, "%s: ", pname);
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perror(NULL);
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exit(ret);
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}
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/*
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* Max. cols binary characters are decoded from the input stream per line.
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* Two adjacent garbage characters after evaluated data delimit valid data.
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* Everything up to the next newline is discarded.
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*
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* The name is historic and came from 'undo type opt h'.
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*/
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static int
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huntype(
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FILE *fpi,
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FILE *fpo,
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FILE *fperr,
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int cols,
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int hextype,
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long base_off)
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{
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int c, ign_garb = 1, n1 = -1, n2 = 0, n3, p = cols;
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long have_off = 0, want_off = 0;
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rewind(fpi);
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while ((c = getc(fpi)) != EOF)
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{
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if (c == '\r') /* Doze style input file? */
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continue;
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/* Allow multiple spaces. This doesn't work when there is normal text
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* after the hex codes in the last line that looks like hex, thus only
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* use it for PostScript format. */
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if (hextype == HEX_POSTSCRIPT && (c == ' ' || c == '\n' || c == '\t'))
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continue;
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n3 = n2;
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n2 = n1;
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if (c >= '0' && c <= '9')
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n1 = c - '0';
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else if (c >= 'a' && c <= 'f')
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n1 = c - 'a' + 10;
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else if (c >= 'A' && c <= 'F')
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n1 = c - 'A' + 10;
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else
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{
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n1 = -1;
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if (ign_garb)
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continue;
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}
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ign_garb = 0;
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if (p >= cols)
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{
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if (!hextype)
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{
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if (n1 < 0)
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{
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p = 0;
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continue;
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}
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want_off = (want_off << 4) | n1;
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continue;
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}
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else
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p = 0;
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}
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if (base_off + want_off != have_off)
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{
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if (fflush(fpo) != 0)
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die(3);
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#ifdef TRY_SEEK
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c = fseek(fpo, base_off + want_off - have_off, 1);
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if (c >= 0)
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have_off = base_off + want_off;
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#endif
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if (base_off + want_off < have_off)
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{
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fprintf(fperr, "%s: sorry, cannot seek backwards.\n", pname);
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return 5;
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}
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for (; have_off < base_off + want_off; have_off++)
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if (putc(0, fpo) == EOF)
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die(3);
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}
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if (n2 >= 0 && n1 >= 0)
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{
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if (putc((n2 << 4) | n1, fpo) == EOF)
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die(3);
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have_off++;
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want_off++;
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n1 = -1;
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if ((++p >= cols) && !hextype)
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{
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/* skip rest of line as garbage */
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want_off = 0;
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while ((c = getc(fpi)) != '\n' && c != EOF)
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;
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if (c == EOF && ferror(fpi))
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die(2);
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ign_garb = 1;
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}
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}
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else if (n1 < 0 && n2 < 0 && n3 < 0)
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{
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/* already stumbled into garbage, skip line, wait and see */
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if (!hextype)
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want_off = 0;
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while ((c = getc(fpi)) != '\n' && c != EOF)
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|
;
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if (c == EOF && ferror(fpi))
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die(2);
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ign_garb = 1;
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|
}
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}
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if (fflush(fpo) != 0)
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|
die(3);
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|
#ifdef TRY_SEEK
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fseek(fpo, 0L, 2);
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|
#endif
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if (fclose(fpo) != 0)
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|
die(3);
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if (fclose(fpi) != 0)
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die(2);
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return 0;
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}
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|
|
/*
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* Print line l. If nz is false, xxdline regards the line a line of
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* zeroes. If there are three or more consecutive lines of zeroes,
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* they are replaced by a single '*' character.
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*
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* If the output ends with more than two lines of zeroes, you
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* should call xxdline again with l being the last line and nz
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* negative. This ensures that the last line is shown even when
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* it is all zeroes.
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*
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* If nz is always positive, lines are never suppressed.
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*/
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static void
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xxdline(FILE *fp, char *l, int nz)
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|
{
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static char z[LLEN+1];
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|
static int zero_seen = 0;
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|
|
|
if (!nz && zero_seen == 1)
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|
strcpy(z, l);
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|
|
|
if (nz || !zero_seen++)
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|
{
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|
if (nz)
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|
{
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|
if (nz < 0)
|
|
zero_seen--;
|
|
if (zero_seen == 2)
|
|
if (fputs(z, fp) == EOF)
|
|
die(3);
|
|
if (zero_seen > 2)
|
|
if (fputs("*\n", fp) == EOF)
|
|
die(3);
|
|
}
|
|
if (nz >= 0 || zero_seen > 0)
|
|
if (fputs(l, fp) == EOF)
|
|
die(3);
|
|
if (nz)
|
|
zero_seen = 0;
|
|
}
|
|
}
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|
|
|
/* This is an EBCDIC to ASCII conversion table */
|
|
/* from a proposed BTL standard April 16, 1979 */
|
|
static unsigned char etoa64[] =
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{
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|
0040,0240,0241,0242,0243,0244,0245,0246,
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0247,0250,0325,0056,0074,0050,0053,0174,
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|
0046,0251,0252,0253,0254,0255,0256,0257,
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|
0260,0261,0041,0044,0052,0051,0073,0176,
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|
0055,0057,0262,0263,0264,0265,0266,0267,
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|
0270,0271,0313,0054,0045,0137,0076,0077,
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0272,0273,0274,0275,0276,0277,0300,0301,
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|
0302,0140,0072,0043,0100,0047,0075,0042,
|
|
0303,0141,0142,0143,0144,0145,0146,0147,
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|
0150,0151,0304,0305,0306,0307,0310,0311,
|
|
0312,0152,0153,0154,0155,0156,0157,0160,
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|
0161,0162,0136,0314,0315,0316,0317,0320,
|
|
0321,0345,0163,0164,0165,0166,0167,0170,
|
|
0171,0172,0322,0323,0324,0133,0326,0327,
|
|
0330,0331,0332,0333,0334,0335,0336,0337,
|
|
0340,0341,0342,0343,0344,0135,0346,0347,
|
|
0173,0101,0102,0103,0104,0105,0106,0107,
|
|
0110,0111,0350,0351,0352,0353,0354,0355,
|
|
0175,0112,0113,0114,0115,0116,0117,0120,
|
|
0121,0122,0356,0357,0360,0361,0362,0363,
|
|
0134,0237,0123,0124,0125,0126,0127,0130,
|
|
0131,0132,0364,0365,0366,0367,0370,0371,
|
|
0060,0061,0062,0063,0064,0065,0066,0067,
|
|
0070,0071,0372,0373,0374,0375,0376,0377
|
|
};
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
FILE *fp, *fpo;
|
|
int c, e, p = 0, relseek = 1, negseek = 0, revert = 0;
|
|
int cols = 0, nonzero = 0, autoskip = 0, hextype = HEX_NORMAL;
|
|
int ebcdic = 0;
|
|
int octspergrp = -1; /* number of octets grouped in output */
|
|
int grplen; /* total chars per octet group */
|
|
long length = -1, n = 0, seekoff = 0, displayoff = 0;
|
|
static char l[LLEN+1]; /* static because it may be too big for stack */
|
|
char *pp;
|
|
|
|
#ifdef AMIGA
|
|
/* This program doesn't work when started from the Workbench */
|
|
if (argc == 0)
|
|
exit(1);
|
|
#endif
|
|
|
|
pname = argv[0];
|
|
for (pp = pname; *pp; )
|
|
if (*pp++ == PATH_SEP)
|
|
pname = pp;
|
|
#ifdef FILE_SEP
|
|
for (pp = pname; *pp; pp++)
|
|
if (*pp == FILE_SEP)
|
|
{
|
|
*pp = '\0';
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
while (argc >= 2)
|
|
{
|
|
pp = argv[1] + (!STRNCMP(argv[1], "--", 2) && argv[1][2]);
|
|
if (!STRNCMP(pp, "-a", 2)) autoskip = 1 - autoskip;
|
|
else if (!STRNCMP(pp, "-b", 2)) hextype = HEX_BITS;
|
|
else if (!STRNCMP(pp, "-e", 2)) hextype = HEX_LITTLEENDIAN;
|
|
else if (!STRNCMP(pp, "-u", 2)) hexx = hexxa + 16;
|
|
else if (!STRNCMP(pp, "-p", 2)) hextype = HEX_POSTSCRIPT;
|
|
else if (!STRNCMP(pp, "-i", 2)) hextype = HEX_CINCLUDE;
|
|
else if (!STRNCMP(pp, "-r", 2)) revert++;
|
|
else if (!STRNCMP(pp, "-E", 2)) ebcdic++;
|
|
else if (!STRNCMP(pp, "-v", 2))
|
|
{
|
|
fprintf(stderr, "%s%s\n", version, osver);
|
|
exit(0);
|
|
}
|
|
else if (!STRNCMP(pp, "-c", 2))
|
|
{
|
|
if (pp[2] && STRNCMP("ols", pp + 2, 3))
|
|
cols = (int)strtol(pp + 2, NULL, 0);
|
|
else
|
|
{
|
|
if (!argv[2])
|
|
exit_with_usage();
|
|
cols = (int)strtol(argv[2], NULL, 0);
|
|
argv++;
|
|
argc--;
|
|
}
|
|
}
|
|
else if (!STRNCMP(pp, "-g", 2))
|
|
{
|
|
if (pp[2] && STRNCMP("group", pp + 2, 5))
|
|
octspergrp = (int)strtol(pp + 2, NULL, 0);
|
|
else
|
|
{
|
|
if (!argv[2])
|
|
exit_with_usage();
|
|
octspergrp = (int)strtol(argv[2], NULL, 0);
|
|
argv++;
|
|
argc--;
|
|
}
|
|
}
|
|
else if (!STRNCMP(pp, "-o", 2))
|
|
{
|
|
if (pp[2] && STRNCMP("ffset", pp + 2, 5))
|
|
displayoff = (int)strtol(pp + 2, NULL, 0);
|
|
else
|
|
{
|
|
if (!argv[2])
|
|
exit_with_usage();
|
|
displayoff = (int)strtol(argv[2], NULL, 0);
|
|
argv++;
|
|
argc--;
|
|
}
|
|
}
|
|
else if (!STRNCMP(pp, "-s", 2))
|
|
{
|
|
relseek = 0;
|
|
negseek = 0;
|
|
if (pp[2] && STRNCMP("kip", pp+2, 3) && STRNCMP("eek", pp+2, 3))
|
|
{
|
|
#ifdef TRY_SEEK
|
|
if (pp[2] == '+')
|
|
relseek++;
|
|
if (pp[2+relseek] == '-')
|
|
negseek++;
|
|
#endif
|
|
seekoff = strtol(pp + 2+relseek+negseek, (char **)NULL, 0);
|
|
}
|
|
else
|
|
{
|
|
if (!argv[2])
|
|
exit_with_usage();
|
|
#ifdef TRY_SEEK
|
|
if (argv[2][0] == '+')
|
|
relseek++;
|
|
if (argv[2][relseek] == '-')
|
|
negseek++;
|
|
#endif
|
|
seekoff = strtol(argv[2] + relseek+negseek, (char **)NULL, 0);
|
|
argv++;
|
|
argc--;
|
|
}
|
|
}
|
|
else if (!STRNCMP(pp, "-l", 2))
|
|
{
|
|
if (pp[2] && STRNCMP("en", pp + 2, 2))
|
|
length = strtol(pp + 2, (char **)NULL, 0);
|
|
else
|
|
{
|
|
if (!argv[2])
|
|
exit_with_usage();
|
|
length = strtol(argv[2], (char **)NULL, 0);
|
|
argv++;
|
|
argc--;
|
|
}
|
|
}
|
|
else if (!strcmp(pp, "--")) /* end of options */
|
|
{
|
|
argv++;
|
|
argc--;
|
|
break;
|
|
}
|
|
else if (pp[0] == '-' && pp[1]) /* unknown option */
|
|
exit_with_usage();
|
|
else
|
|
break; /* not an option */
|
|
|
|
argv++; /* advance to next argument */
|
|
argc--;
|
|
}
|
|
|
|
if (!cols)
|
|
switch (hextype)
|
|
{
|
|
case HEX_POSTSCRIPT: cols = 30; break;
|
|
case HEX_CINCLUDE: cols = 12; break;
|
|
case HEX_BITS: cols = 6; break;
|
|
case HEX_NORMAL:
|
|
case HEX_LITTLEENDIAN:
|
|
default: cols = 16; break;
|
|
}
|
|
|
|
if (octspergrp < 0)
|
|
switch (hextype)
|
|
{
|
|
case HEX_BITS: octspergrp = 1; break;
|
|
case HEX_NORMAL: octspergrp = 2; break;
|
|
case HEX_LITTLEENDIAN: octspergrp = 4; break;
|
|
case HEX_POSTSCRIPT:
|
|
case HEX_CINCLUDE:
|
|
default: octspergrp = 0; break;
|
|
}
|
|
|
|
if (cols < 1 || ((hextype == HEX_NORMAL || hextype == HEX_BITS || hextype == HEX_LITTLEENDIAN)
|
|
&& (cols > COLS)))
|
|
{
|
|
fprintf(stderr, "%s: invalid number of columns (max. %d).\n", pname, COLS);
|
|
exit(1);
|
|
}
|
|
|
|
if (octspergrp < 1 || octspergrp > cols)
|
|
octspergrp = cols;
|
|
else if (hextype == HEX_LITTLEENDIAN && (octspergrp & (octspergrp-1)))
|
|
{
|
|
fprintf(stderr,
|
|
"%s: number of octets per group must be a power of 2 with -e.\n",
|
|
pname);
|
|
exit(1);
|
|
}
|
|
|
|
if (argc > 3)
|
|
exit_with_usage();
|
|
|
|
if (argc == 1 || (argv[1][0] == '-' && !argv[1][1]))
|
|
BIN_ASSIGN(fp = stdin, !revert);
|
|
else
|
|
{
|
|
if ((fp = fopen(argv[1], BIN_READ(!revert))) == NULL)
|
|
{
|
|
fprintf(stderr,"%s: ", pname);
|
|
perror(argv[1]);
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
if (argc < 3 || (argv[2][0] == '-' && !argv[2][1]))
|
|
BIN_ASSIGN(fpo = stdout, revert);
|
|
else
|
|
{
|
|
int fd;
|
|
int mode = revert ? O_WRONLY : (O_TRUNC|O_WRONLY);
|
|
|
|
if (((fd = OPEN(argv[2], mode | BIN_CREAT(revert), 0666)) < 0) ||
|
|
(fpo = fdopen(fd, BIN_WRITE(revert))) == NULL)
|
|
{
|
|
fprintf(stderr, "%s: ", pname);
|
|
perror(argv[2]);
|
|
return 3;
|
|
}
|
|
rewind(fpo);
|
|
}
|
|
|
|
if (revert)
|
|
{
|
|
if (hextype && (hextype != HEX_POSTSCRIPT))
|
|
{
|
|
fprintf(stderr, "%s: sorry, cannot revert this type of hexdump\n", pname);
|
|
return -1;
|
|
}
|
|
return huntype(fp, fpo, stderr, cols, hextype,
|
|
negseek ? -seekoff : seekoff);
|
|
}
|
|
|
|
if (seekoff || negseek || !relseek)
|
|
{
|
|
#ifdef TRY_SEEK
|
|
if (relseek)
|
|
e = fseek(fp, negseek ? -seekoff : seekoff, 1);
|
|
else
|
|
e = fseek(fp, negseek ? -seekoff : seekoff, negseek ? 2 : 0);
|
|
if (e < 0 && negseek)
|
|
{
|
|
fprintf(stderr, "%s: sorry cannot seek.\n", pname);
|
|
return 4;
|
|
}
|
|
if (e >= 0)
|
|
seekoff = ftell(fp);
|
|
else
|
|
#endif
|
|
{
|
|
long s = seekoff;
|
|
|
|
while (s--)
|
|
if (getc(fp) == EOF)
|
|
{
|
|
if (ferror(fp))
|
|
{
|
|
die(2);
|
|
}
|
|
else
|
|
{
|
|
fprintf(stderr, "%s: sorry cannot seek.\n", pname);
|
|
return 4;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (hextype == HEX_CINCLUDE)
|
|
{
|
|
if (fp != stdin)
|
|
{
|
|
if (fprintf(fpo, "unsigned char %s", isdigit((int)argv[1][0]) ? "__" : "") < 0)
|
|
die(3);
|
|
for (e = 0; (c = argv[1][e]) != 0; e++)
|
|
if (putc(isalnum(c) ? c : '_', fpo) == EOF)
|
|
die(3);
|
|
if (fputs("[] = {\n", fpo) == EOF)
|
|
die(3);
|
|
}
|
|
|
|
p = 0;
|
|
c = 0;
|
|
while ((length < 0 || p < length) && (c = getc(fp)) != EOF)
|
|
{
|
|
if (fprintf(fpo, (hexx == hexxa) ? "%s0x%02x" : "%s0X%02X",
|
|
(p % cols) ? ", " : &",\n "[2*!p], c) < 0)
|
|
die(3);
|
|
p++;
|
|
}
|
|
if (c == EOF && ferror(fp))
|
|
die(2);
|
|
|
|
if (p && fputs("\n", fpo) == EOF)
|
|
die(3);
|
|
if (fputs(&"};\n"[3 * (fp == stdin)], fpo) == EOF)
|
|
die(3);
|
|
|
|
if (fp != stdin)
|
|
{
|
|
if (fprintf(fpo, "unsigned int %s", isdigit((int)argv[1][0]) ? "__" : "") < 0)
|
|
die(3);
|
|
for (e = 0; (c = argv[1][e]) != 0; e++)
|
|
if (putc(isalnum(c) ? c : '_', fpo) == EOF)
|
|
die(3);
|
|
if (fprintf(fpo, "_len = %d;\n", p) < 0)
|
|
die(3);
|
|
}
|
|
|
|
if (fclose(fp))
|
|
die(2);
|
|
if (fclose(fpo))
|
|
die(3);
|
|
return 0;
|
|
}
|
|
|
|
if (hextype == HEX_POSTSCRIPT)
|
|
{
|
|
p = cols;
|
|
e = 0;
|
|
while ((length < 0 || n < length) && (e = getc(fp)) != EOF)
|
|
{
|
|
if (putc(hexx[(e >> 4) & 0xf], fpo) == EOF
|
|
|| putc(hexx[e & 0xf], fpo) == EOF)
|
|
die(3);
|
|
n++;
|
|
if (!--p)
|
|
{
|
|
if (putc('\n', fpo) == EOF)
|
|
die(3);
|
|
p = cols;
|
|
}
|
|
}
|
|
if (e == EOF && ferror(fp))
|
|
die(2);
|
|
if (p < cols)
|
|
if (putc('\n', fpo) == EOF)
|
|
die(3);
|
|
if (fclose(fp))
|
|
die(2);
|
|
if (fclose(fpo))
|
|
die(3);
|
|
return 0;
|
|
}
|
|
|
|
/* hextype: HEX_NORMAL or HEX_BITS or HEX_LITTLEENDIAN */
|
|
|
|
if (hextype != HEX_BITS)
|
|
grplen = octspergrp + octspergrp + 1; /* chars per octet group */
|
|
else /* hextype == HEX_BITS */
|
|
grplen = 8 * octspergrp + 1;
|
|
|
|
e = 0;
|
|
while ((length < 0 || n < length) && (e = getc(fp)) != EOF)
|
|
{
|
|
if (p == 0)
|
|
{
|
|
sprintf(l, "%08lx:",
|
|
((unsigned long)(n + seekoff + displayoff)) & 0xffffffff);
|
|
for (c = 9; c < LLEN; l[c++] = ' ');
|
|
}
|
|
if (hextype == HEX_NORMAL)
|
|
{
|
|
l[c = (10 + (grplen * p) / octspergrp)] = hexx[(e >> 4) & 0xf];
|
|
l[++c] = hexx[ e & 0xf];
|
|
}
|
|
else if (hextype == HEX_LITTLEENDIAN)
|
|
{
|
|
int x = p ^ (octspergrp-1);
|
|
l[c = (10 + (grplen * x) / octspergrp)] = hexx[(e >> 4) & 0xf];
|
|
l[++c] = hexx[ e & 0xf];
|
|
}
|
|
else /* hextype == HEX_BITS */
|
|
{
|
|
int i;
|
|
|
|
c = (10 + (grplen * p) / octspergrp) - 1;
|
|
for (i = 7; i >= 0; i--)
|
|
l[++c] = (e & (1 << i)) ? '1' : '0';
|
|
}
|
|
if (ebcdic)
|
|
e = (e < 64) ? '.' : etoa64[e-64];
|
|
/* When changing this update definition of LLEN above. */
|
|
l[12 + (grplen * cols - 1)/octspergrp + p] =
|
|
#ifdef __MVS__
|
|
(e >= 64)
|
|
#else
|
|
(e > 31 && e < 127)
|
|
#endif
|
|
? e : '.';
|
|
if (e)
|
|
nonzero++;
|
|
n++;
|
|
if (++p == cols)
|
|
{
|
|
l[c = (12 + (grplen * cols - 1)/octspergrp + p)] = '\n'; l[++c] = '\0';
|
|
xxdline(fpo, l, autoskip ? nonzero : 1);
|
|
nonzero = 0;
|
|
p = 0;
|
|
}
|
|
}
|
|
if (e == EOF && ferror(fp))
|
|
die(2);
|
|
if (p)
|
|
{
|
|
l[c = (12 + (grplen * cols - 1)/octspergrp + p)] = '\n'; l[++c] = '\0';
|
|
xxdline(fpo, l, 1);
|
|
}
|
|
else if (autoskip)
|
|
xxdline(fpo, l, -1); /* last chance to flush out suppressed lines */
|
|
|
|
if (fclose(fp))
|
|
die(2);
|
|
if (fclose(fpo))
|
|
die(3);
|
|
return 0;
|
|
}
|
|
|
|
/* vi:set ts=8 sw=4 sts=2 cino+={2 cino+=n-2 : */
|