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-rw-r--r--src/xxd/xxd.c890
1 files changed, 890 insertions, 0 deletions
diff --git a/src/xxd/xxd.c b/src/xxd/xxd.c
new file mode 100644
index 0000000..c24089e
--- /dev/null
+++ b/src/xxd/xxd.c
@@ -0,0 +1,890 @@
+/* xxd: my hexdump facility. jw
+ *
+ * 2.10.90 changed to word output
+ * 3.03.93 new indent style, dumb bug inserted and fixed.
+ * -c option, mls
+ * 26.04.94 better option parser, -ps, -l, -s added.
+ * 1.07.94 -r badly needs - as input file. Per default autoskip over
+ * consecutive lines of zeroes, as unix od does.
+ * -a shows them too.
+ * -i dump as c-style #include "file.h"
+ * 1.11.95 if "xxd -i" knows the filename, an 'unsigned char filename_bits[]'
+ * array is written in correct c-syntax.
+ * -s improved, now defaults to absolute seek, relative requires a '+'.
+ * -r improved, now -r -s -0x... is supported.
+ * change/suppress leading '\0' bytes.
+ * -l n improved: stops exactly after n bytes.
+ * -r improved, better handling of partial lines with trailing garbage.
+ * -r improved, now -r -p works again!
+ * -r improved, less flushing, much faster now! (that was silly)
+ * 3.04.96 Per repeated request of a single person: autoskip defaults to off.
+ * 15.05.96 -v added. They want to know the version.
+ * -a fixed, to show last line inf file ends in all zeros.
+ * -u added: Print upper case hex-letters, as preferred by unix bc.
+ * -h added to usage message. Usage message extended.
+ * Now using outfile if specified even in normal mode, aehem.
+ * No longer mixing of ints and longs. May help doze people.
+ * Added binify ioctl for same reason. (Enough Doze stress for 1996!)
+ * 16.05.96 -p improved, removed occasional superfluous linefeed.
+ * 20.05.96 -l 0 fixed. tried to read anyway.
+ * 21.05.96 -i fixed. now honours -u, and prepends __ to numeric filenames.
+ * compile -DWIN32 for NT or W95. George V. Reilly, * -v improved :-)
+ * support --gnuish-longhorn-options
+ * 25.05.96 MAC support added: CodeWarrior already uses ``outline'' in Types.h
+ * which is included by MacHeaders (Axel Kielhorn). Renamed to
+ * xxdline().
+ * 7.06.96 -i printed 'int' instead of 'char'. *blush*
+ * added Bram's OS2 ifdefs...
+ * 18.07.96 gcc -Wall @ SunOS4 is now slient.
+ * Added osver for MSDOS/DJGPP/WIN32.
+ * 29.08.96 Added size_t to strncmp() for Amiga.
+ * 24.03.97 Windows NT support (Phil Hanna). Clean exit for Amiga WB (Bram)
+ * 02.04.97 Added -E option, to have EBCDIC translation instead of ASCII
+ * (azc10@yahoo.com)
+ * 22.05.97 added -g (group octets) option (jcook@namerica.kla.com).
+ * 23.09.98 nasty -p -r misfeature fixed: slightly wrong output, when -c was
+ * missing or wrong.
+ * 26.09.98 Fixed: 'xxd -i infile outfile' did not truncate outfile.
+ * 27.10.98 Fixed: -g option parser required blank.
+ * option -b added: 01000101 binary output in normal format.
+ * 16.05.00 Added VAXC changes by Stephen P. Wall
+ * 16.05.00 Improved MMS file and merge for VMS by Zoltan Arpadffy
+ * 2011 March Better error handling by Florian Zumbiehl.
+ * 2011 April Formatting by Bram Moolenaar
+ * 08.06.2013 Little-endian hexdump (-e) and offset (-o) by Vadim Vygonets.
+ * 11.01.2019 Add full 64/32 bit range to -o and output by Christer Jensen.
+ *
+ * (c) 1990-1998 by Juergen Weigert (jnweiger@informatik.uni-erlangen.de)
+ *
+ * I hereby grant permission to distribute and use xxd
+ * under X11-MIT or GPL-2.0 (at the user's choice).
+ *
+ * Small changes made afterwards by Bram Moolenaar et al.
+ *
+ * Distribute freely and credit me,
+ * make money and share with me,
+ * lose money and don't ask me.
+ */
+
+/* Visual Studio 2005 has 'deprecated' many of the standard CRT functions */
+#if _MSC_VER >= 1400
+# define _CRT_SECURE_NO_DEPRECATE
+# define _CRT_NONSTDC_NO_DEPRECATE
+#endif
+#if !defined(CYGWIN) && (defined(CYGWIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__))
+# define CYGWIN
+#endif
+
+#include <stdio.h>
+#ifdef VAXC
+# include <file.h>
+#else
+# include <fcntl.h>
+#endif
+#if defined(WIN32) || defined(__BORLANDC__) || defined(CYGWIN)
+# include <io.h> /* for setmode() */
+#else
+# ifdef UNIX
+# include <unistd.h>
+# endif
+#endif
+#include <stdlib.h>
+#include <string.h> /* for strncmp() */
+#include <ctype.h> /* for isalnum() */
+#include <limits.h>
+#if __MWERKS__ && !defined(BEBOX)
+# include <unix.h> /* for fdopen() on MAC */
+#endif
+
+#if defined(__BORLANDC__) && __BORLANDC__ <= 0x0410 && !defined(fileno)
+/* Missing define and prototype grabbed from the BC 4.0 <stdio.h> */
+# define fileno(f) ((f)->fd)
+FILE _FAR *_Cdecl _FARFUNC fdopen(int __handle, char _FAR *__type);
+#endif
+
+
+/* This corrects the problem of missing prototypes for certain functions
+ * in some GNU installations (e.g. SunOS 4.1.x).
+ * Darren Hiebert <darren@hmi.com> (sparc-sun-sunos4.1.3_U1/2.7.2.2)
+ */
+#if defined(__GNUC__) && defined(__STDC__)
+# ifndef __USE_FIXED_PROTOTYPES__
+# define __USE_FIXED_PROTOTYPES__
+# endif
+#endif
+
+#ifndef __USE_FIXED_PROTOTYPES__
+/*
+ * This is historic and works only if the compiler really has no prototypes:
+ *
+ * Include prototypes for Sun OS 4.x, when using an ANSI compiler.
+ * FILE is defined on OS 4.x, not on 5.x (Solaris).
+ * if __SVR4 is defined (some Solaris versions), don't include this.
+ */
+#if defined(sun) && defined(FILE) && !defined(__SVR4) && defined(__STDC__)
+# define __P(a) a
+/* excerpt from my sun_stdlib.h */
+extern int fprintf __P((FILE *, char *, ...));
+extern int fputs __P((char *, FILE *));
+extern int _flsbuf __P((unsigned char, FILE *));
+extern int _filbuf __P((FILE *));
+extern int fflush __P((FILE *));
+extern int fclose __P((FILE *));
+extern int fseek __P((FILE *, long, int));
+extern int rewind __P((FILE *));
+
+extern void perror __P((char *));
+# endif
+#endif
+
+extern long int strtol();
+extern long int ftell();
+
+char version[] = "xxd V1.10 27oct98 by Juergen Weigert";
+#ifdef WIN32
+char osver[] = " (Win32)";
+#else
+char osver[] = "";
+#endif
+
+#if defined(WIN32)
+# define BIN_READ(yes) ((yes) ? "rb" : "rt")
+# define BIN_WRITE(yes) ((yes) ? "wb" : "wt")
+# define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT)
+# define BIN_ASSIGN(fp, yes) setmode(fileno(fp), (yes) ? O_BINARY : O_TEXT)
+# define PATH_SEP '\\'
+#elif defined(CYGWIN)
+# define BIN_READ(yes) ((yes) ? "rb" : "rt")
+# define BIN_WRITE(yes) ((yes) ? "wb" : "w")
+# define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT)
+# define BIN_ASSIGN(fp, yes) ((yes) ? (void) setmode(fileno(fp), O_BINARY) : (void) (fp))
+# define PATH_SEP '/'
+#else
+# ifdef VMS
+# define BIN_READ(dummy) "r"
+# define BIN_WRITE(dummy) "w"
+# define BIN_CREAT(dummy) O_CREAT
+# define BIN_ASSIGN(fp, dummy) fp
+# define PATH_SEP ']'
+# define FILE_SEP '.'
+# else
+# define BIN_READ(dummy) "r"
+# define BIN_WRITE(dummy) "w"
+# define BIN_CREAT(dummy) O_CREAT
+# define BIN_ASSIGN(fp, dummy) fp
+# define PATH_SEP '/'
+# endif
+#endif
+
+/* open has only to arguments on the Mac */
+#if __MWERKS__
+# define OPEN(name, mode, umask) open(name, mode)
+#else
+# define OPEN(name, mode, umask) open(name, mode, umask)
+#endif
+
+#ifdef AMIGA
+# define STRNCMP(s1, s2, l) strncmp(s1, s2, (size_t)l)
+#else
+# define STRNCMP(s1, s2, l) strncmp(s1, s2, l)
+#endif
+
+#ifndef __P
+# if defined(__STDC__) || defined(WIN32) || defined(__BORLANDC__)
+# define __P(a) a
+# else
+# define __P(a) ()
+# endif
+#endif
+
+/* Let's collect some prototypes */
+/* CodeWarrior is really picky about missing prototypes */
+static void exit_with_usage __P((void));
+static void die __P((int));
+static int huntype __P((FILE *, FILE *, FILE *, int, int, long));
+static void xxdline __P((FILE *, char *, int));
+
+#define TRY_SEEK /* attempt to use lseek, or skip forward by reading */
+#define COLS 256 /* change here, if you ever need more columns */
+#define LLEN ((2*(int)sizeof(unsigned long)) + 4 + (9*COLS-1) + COLS + 2)
+
+char hexxa[] = "0123456789abcdef0123456789ABCDEF", *hexx = hexxa;
+
+/* the different hextypes known by this program: */
+#define HEX_NORMAL 0
+#define HEX_POSTSCRIPT 1
+#define HEX_CINCLUDE 2
+#define HEX_BITS 3 /* not hex a dump, but bits: 01111001 */
+#define HEX_LITTLEENDIAN 4
+
+#define CONDITIONAL_CAPITALIZE(c) (capitalize ? toupper((int)c) : c)
+
+static char *pname;
+
+ static void
+exit_with_usage(void)
+{
+ fprintf(stderr, "Usage:\n %s [options] [infile [outfile]]\n", pname);
+ fprintf(stderr, " or\n %s -r [-s [-]offset] [-c cols] [-ps] [infile [outfile]]\n", pname);
+ fprintf(stderr, "Options:\n");
+ fprintf(stderr, " -a toggle autoskip: A single '*' replaces nul-lines. Default off.\n");
+ fprintf(stderr, " -b binary digit dump (incompatible with -ps,-i,-r). Default hex.\n");
+ fprintf(stderr, " -C capitalize variable names in C include file style (-i).\n");
+ fprintf(stderr, " -c cols format <cols> octets per line. Default 16 (-i: 12, -ps: 30).\n");
+ fprintf(stderr, " -E show characters in EBCDIC. Default ASCII.\n");
+ fprintf(stderr, " -e little-endian dump (incompatible with -ps,-i,-r).\n");
+ fprintf(stderr, " -g number of octets per group in normal output. Default 2 (-e: 4).\n");
+ fprintf(stderr, " -h print this summary.\n");
+ fprintf(stderr, " -i output in C include file style.\n");
+ fprintf(stderr, " -l len stop after <len> octets.\n");
+ fprintf(stderr, " -o off add <off> to the displayed file position.\n");
+ fprintf(stderr, " -ps output in postscript plain hexdump style.\n");
+ fprintf(stderr, " -r reverse operation: convert (or patch) hexdump into binary.\n");
+ fprintf(stderr, " -r -s off revert with <off> added to file positions found in hexdump.\n");
+ fprintf(stderr, " -s %sseek start at <seek> bytes abs. %sinfile offset.\n",
+#ifdef TRY_SEEK
+ "[+][-]", "(or +: rel.) ");
+#else
+ "", "");
+#endif
+ fprintf(stderr, " -u use upper case hex letters.\n");
+ fprintf(stderr, " -v show version: \"%s%s\".\n", version, osver);
+ exit(1);
+}
+
+ static void
+die(int ret)
+{
+ fprintf(stderr, "%s: ", pname);
+ perror(NULL);
+ exit(ret);
+}
+
+/*
+ * Max. cols binary characters are decoded from the input stream per line.
+ * Two adjacent garbage characters after evaluated data delimit valid data.
+ * Everything up to the next newline is discarded.
+ *
+ * The name is historic and came from 'undo type opt h'.
+ */
+ static int
+huntype(
+ FILE *fpi,
+ FILE *fpo,
+ FILE *fperr,
+ int cols,
+ int hextype,
+ long base_off)
+{
+ int c, ign_garb = 1, n1 = -1, n2 = 0, n3, p = cols;
+ long have_off = 0, want_off = 0;
+
+ rewind(fpi);
+
+ while ((c = getc(fpi)) != EOF)
+ {
+ if (c == '\r') /* Doze style input file? */
+ continue;
+
+ /* Allow multiple spaces. This doesn't work when there is normal text
+ * after the hex codes in the last line that looks like hex, thus only
+ * use it for PostScript format. */
+ if (hextype == HEX_POSTSCRIPT && (c == ' ' || c == '\n' || c == '\t'))
+ continue;
+
+ n3 = n2;
+ n2 = n1;
+
+ if (c >= '0' && c <= '9')
+ n1 = c - '0';
+ else if (c >= 'a' && c <= 'f')
+ n1 = c - 'a' + 10;
+ else if (c >= 'A' && c <= 'F')
+ n1 = c - 'A' + 10;
+ else
+ {
+ n1 = -1;
+ if (ign_garb)
+ continue;
+ }
+
+ ign_garb = 0;
+
+ if (p >= cols)
+ {
+ if (!hextype)
+ {
+ if (n1 < 0)
+ {
+ p = 0;
+ continue;
+ }
+ want_off = (want_off << 4) | n1;
+ continue;
+ }
+ else
+ p = 0;
+ }
+
+ if (base_off + want_off != have_off)
+ {
+ if (fflush(fpo) != 0)
+ die(3);
+#ifdef TRY_SEEK
+ c = fseek(fpo, base_off + want_off - have_off, 1);
+ if (c >= 0)
+ have_off = base_off + want_off;
+#endif
+ if (base_off + want_off < have_off)
+ {
+ fprintf(fperr, "%s: sorry, cannot seek backwards.\n", pname);
+ return 5;
+ }
+ for (; have_off < base_off + want_off; have_off++)
+ if (putc(0, fpo) == EOF)
+ die(3);
+ }
+
+ if (n2 >= 0 && n1 >= 0)
+ {
+ if (putc((n2 << 4) | n1, fpo) == EOF)
+ die(3);
+ have_off++;
+ want_off++;
+ n1 = -1;
+ if ((++p >= cols) && !hextype)
+ {
+ /* skip rest of line as garbage */
+ want_off = 0;
+ while ((c = getc(fpi)) != '\n' && c != EOF)
+ ;
+ if (c == EOF && ferror(fpi))
+ die(2);
+ ign_garb = 1;
+ }
+ }
+ else if (n1 < 0 && n2 < 0 && n3 < 0)
+ {
+ /* already stumbled into garbage, skip line, wait and see */
+ if (!hextype)
+ want_off = 0;
+ while ((c = getc(fpi)) != '\n' && c != EOF)
+ ;
+ if (c == EOF && ferror(fpi))
+ die(2);
+ ign_garb = 1;
+ }
+ }
+ if (fflush(fpo) != 0)
+ die(3);
+#ifdef TRY_SEEK
+ fseek(fpo, 0L, 2);
+#endif
+ if (fclose(fpo) != 0)
+ die(3);
+ if (fclose(fpi) != 0)
+ die(2);
+ return 0;
+}
+
+/*
+ * Print line l. If nz is false, xxdline regards the line a line of
+ * zeroes. If there are three or more consecutive lines of zeroes,
+ * they are replaced by a single '*' character.
+ *
+ * If the output ends with more than two lines of zeroes, you
+ * should call xxdline again with l being the last line and nz
+ * negative. This ensures that the last line is shown even when
+ * it is all zeroes.
+ *
+ * If nz is always positive, lines are never suppressed.
+ */
+ static void
+xxdline(FILE *fp, char *l, int nz)
+{
+ static char z[LLEN+1];
+ static int zero_seen = 0;
+
+ if (!nz && zero_seen == 1)
+ strcpy(z, l);
+
+ if (nz || !zero_seen++)
+ {
+ if (nz)
+ {
+ 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;
+ }
+}
+
+/* This is an EBCDIC to ASCII conversion table */
+/* from a proposed BTL standard April 16, 1979 */
+static unsigned char etoa64[] =
+{
+ 0040,0240,0241,0242,0243,0244,0245,0246,
+ 0247,0250,0325,0056,0074,0050,0053,0174,
+ 0046,0251,0252,0253,0254,0255,0256,0257,
+ 0260,0261,0041,0044,0052,0051,0073,0176,
+ 0055,0057,0262,0263,0264,0265,0266,0267,
+ 0270,0271,0313,0054,0045,0137,0076,0077,
+ 0272,0273,0274,0275,0276,0277,0300,0301,
+ 0302,0140,0072,0043,0100,0047,0075,0042,
+ 0303,0141,0142,0143,0144,0145,0146,0147,
+ 0150,0151,0304,0305,0306,0307,0310,0311,
+ 0312,0152,0153,0154,0155,0156,0157,0160,
+ 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, capitalize = 0;
+ 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;
+ unsigned long displayoff = 0;
+ static char l[LLEN+1]; /* static because it may be too big for stack */
+ char *pp;
+ int addrlen = 9;
+
+#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, "-C", 2)) capitalize = 1;
+ 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("apitalize", pp + 2, 9))
+ capitalize = 1;
+ else 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("roup", pp + 2, 4))
+ 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))
+ {
+ int reloffset = 0;
+ int negoffset = 0;
+ if (pp[2] && STRNCMP("ffset", pp + 2, 5))
+ displayoff = strtoul(pp + 2, NULL, 0);
+ else
+ {
+ if (!argv[2])
+ exit_with_usage();
+
+ if (argv[2][0] == '+')
+ reloffset++;
+ if (argv[2][reloffset] == '-')
+ negoffset++;
+
+ if (negoffset)
+ displayoff = ULONG_MAX - strtoul(argv[2] + reloffset+negoffset, NULL, 0) + 1;
+ else
+ displayoff = strtoul(argv[2] + reloffset+negoffset, 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) ? CONDITIONAL_CAPITALIZE(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) ? CONDITIONAL_CAPITALIZE(c) : '_', fpo) == EOF)
+ die(3);
+ if (fprintf(fpo, "_%s = %d;\n", capitalize ? "LEN" : "len", 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)
+ {
+ addrlen = sprintf(l, "%08lx:",
+ ((unsigned long)(n + seekoff + displayoff)));
+ for (c = addrlen; c < LLEN; l[c++] = ' ');
+ }
+ if (hextype == HEX_NORMAL)
+ {
+ l[c = (addrlen + 1 + (grplen * p) / octspergrp)] = hexx[(e >> 4) & 0xf];
+ l[++c] = hexx[ e & 0xf];
+ }
+ else if (hextype == HEX_LITTLEENDIAN)
+ {
+ int x = p ^ (octspergrp-1);
+ l[c = (addrlen + 1 + (grplen * x) / octspergrp)] = hexx[(e >> 4) & 0xf];
+ l[++c] = hexx[ e & 0xf];
+ }
+ else /* hextype == HEX_BITS */
+ {
+ int i;
+
+ c = (addrlen + 1 + (grplen * p) / octspergrp) - 1;
+ for (i = 7; i >= 0; i--)
+ l[++c] = (e & (1 << i)) ? '1' : '0';
+ }
+ if (e)
+ nonzero++;
+ if (ebcdic)
+ e = (e < 64) ? '.' : etoa64[e-64];
+ /* When changing this update definition of LLEN above. */
+ l[addrlen + 3 + (grplen * cols - 1)/octspergrp + p] =
+#ifdef __MVS__
+ (e >= 64)
+#else
+ (e > 31 && e < 127)
+#endif
+ ? e : '.';
+ n++;
+ if (++p == cols)
+ {
+ l[c = (addrlen + 3 + (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 = (addrlen + 3 + (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 : */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 15:50:47 +0000