/* 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 silent. * 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. * 04.02.2020 Add -d for decimal offsets by Aapo Rantalainen * 14.01.2022 Disable extra newlines with -c0 -p by Erik Auerswald. * 20.06.2022 Permit setting the variable names used by -i by David Gow * 31.08.2023 -R never/auto/always prints colored output * 06.10.2023 enable -r -b to reverse bit dumps * 12.01.2024 disable auto-conversion for z/OS (MVS) * 17.01.2024 use size_t instead of usigned int for code-generation (-i), #13876 * 25.01.2024 revert the previous patch (size_t instead of unsigned int) * 10.02.2024 fix buffer-overflow when writing color output to buffer, #14003 * 10.05.2024 fix another buffer-overflow when writing colored output to buffer, #14738 * * (c) 1990-1998 by Juergen Weigert (jnweiger@gmail.com) * * I hereby grant permission to distribute and use xxd * under X11-MIT or GPL-2.0 (at the user's choice). * * Contributions by Bram Moolenaar et al. */ /* 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(__CYGWIN__) # define CYGWIN #endif #if (defined(__linux__) && !defined(__ANDROID__)) || defined(__CYGWIN__) # define _XOPEN_SOURCE 700 /* for fdopen() */ #endif #include #ifdef VAXC # include #else # include #endif #if defined(WIN32) || defined(CYGWIN) # include /* for setmode() */ #endif #ifdef WIN32 # include #endif #ifdef UNIX # include #endif #include #include #include #include #if __MWERKS__ && !defined(BEBOX) # include /* for fdopen() on MAC */ #endif /* This corrects the problem of missing prototypes for certain functions * in some GNU installations (e.g. SunOS 4.1.x). * Darren Hiebert (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 char version[] = "xxd 2024-05-10 by Juergen Weigert et al."; #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) # define __P(a) a # else # define __P(a) () # endif #endif #define TRY_SEEK /* attempt to use lseek, or skip forward by reading */ #define COLS 256 /* change here, if you ever need more columns */ /* * LLEN is the maximum length of a line; other than the visible characters * we need to consider also the escape color sequence prologue/epilogue , * (11 bytes for each character). */ #define LLEN \ (39 /* addr: ⌈log10(ULONG_MAX)⌉ if "-d" flag given. We assume ULONG_MAX = 2**128 */ \ + 2 /* ": " */ \ + 13 * COLS /* hex dump with colors */ \ + (COLS - 1) /* whitespace between groups if "-g1" option given and "-c" maxed out */ \ + 2 /* whitespace */ \ + 12 * COLS /* ASCII dump with colors */ \ + 2) /* "\n\0" */ 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((unsigned char)(c)) : (c)) #define COLOR_PROLOGUE \ l[c++] = '\033'; \ l[c++] = '['; \ l[c++] = '1'; \ l[c++] = ';'; \ l[c++] = '3'; #define COLOR_EPILOGUE \ l[c++] = '\033'; \ l[c++] = '['; \ l[c++] = '0'; \ l[c++] = 'm'; #define COLOR_RED '1' #define COLOR_GREEN '2' #define COLOR_YELLOW '3' #define COLOR_BLUE '4' #define COLOR_WHITE '7' 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). Default hex.\n"); fprintf(stderr, " -C capitalize variable names in C include file style (-i).\n"); fprintf(stderr, " -c cols format 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 bytes 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 octets.\n"); fprintf(stderr, " -n name set the variable name used in C include output (-i).\n"); fprintf(stderr, " -o off add 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 added to file positions found in hexdump.\n"); fprintf(stderr, " -d show offset in decimal instead of hex.\n"); fprintf(stderr, " -s %sseek start at bytes abs. %sinfile offset.\n", #ifdef TRY_SEEK "[+][-]", "(or +: rel.) "); #else "", ""); #endif fprintf(stderr, " -u use upper case hex letters.\n"); fprintf(stderr, " -R when colorize the output; can be 'always', 'auto' or 'never'. Default: 'auto'.\n"), fprintf(stderr, " -v show version: \"%s%s\".\n", version, osver); exit(1); } static void perror_exit(int ret) { fprintf(stderr, "%s: ", pname); perror(NULL); exit(ret); } static void error_exit(int ret, char *msg) { fprintf(stderr, "%s: %s\n", pname, msg); exit(ret); } static int getc_or_die(FILE *fpi) { int c = getc(fpi); if (c == EOF && ferror(fpi)) perror_exit(2); return c; } static void putc_or_die(int c, FILE *fpo) { if (putc(c, fpo) == EOF) perror_exit(3); } static void fputs_or_die(char *s, FILE *fpo) { if (fputs(s, fpo) == EOF) perror_exit(3); } /* Use a macro to allow for different arguments. */ #define FPRINTF_OR_DIE(args) if (fprintf args < 0) perror_exit(3) static void fclose_or_die(FILE *fpi, FILE *fpo) { if (fclose(fpo) != 0) perror_exit(3); if (fclose(fpi) != 0) perror_exit(2); } /* * If "c" is a hex digit, return the value. * Otherwise return -1. */ static int parse_hex_digit(int c) { return (c >= '0' && c <= '9') ? c - '0' : (c >= 'a' && c <= 'f') ? c - 'a' + 10 : (c >= 'A' && c <= 'F') ? c - 'A' + 10 : -1; } /* * If "c" is a bin digit, return the value. * Otherwise return -1. */ static int parse_bin_digit(int c) { return (c >= '0' && c <= '1') ? c - '0' : -1; } /* * Ignore text on "fpi" until end-of-line or end-of-file. * Return the '\n' or EOF character. * When an error is encountered exit with an error message. */ static int skip_to_eol(FILE *fpi, int c) { while (c != '\n' && c != EOF) c = getc_or_die(fpi); return c; } /* * 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, int cols, int hextype, long base_off) { int c, ign_garb = 1, n1 = -1, n2 = 0, n3 = 0, p = cols, bt = 0, b = 0, bcnt = 0; 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; if (hextype == HEX_NORMAL || hextype == HEX_POSTSCRIPT) { n3 = n2; n2 = n1; n1 = parse_hex_digit(c); if (n1 == -1 && ign_garb) continue; } else /* HEX_BITS */ { n1 = parse_hex_digit(c); if (n1 == -1 && ign_garb) continue; bt = parse_bin_digit(c); if (bt != -1) { b = ((b << 1) | bt); ++bcnt; } } ign_garb = 0; if ((hextype != HEX_POSTSCRIPT) && (p >= cols)) { if (hextype == HEX_NORMAL) { if (n1 < 0) { p = 0; continue; } want_off = (want_off << 4) | n1; } else /* HEX_BITS */ { if (n1 < 0) { p = 0; bcnt = 0; continue; } want_off = (want_off << 4) | n1; } continue; } if (base_off + want_off != have_off) { if (fflush(fpo) != 0) perror_exit(3); #ifdef TRY_SEEK if (fseek(fpo, base_off + want_off - have_off, SEEK_CUR) >= 0) have_off = base_off + want_off; #endif if (base_off + want_off < have_off) error_exit(5, "Sorry, cannot seek backwards."); for (; have_off < base_off + want_off; have_off++) putc_or_die(0, fpo); } if (hextype == HEX_NORMAL || hextype == HEX_POSTSCRIPT) { if (n2 >= 0 && n1 >= 0) { putc_or_die((n2 << 4) | n1, fpo); have_off++; want_off++; n1 = -1; if (!hextype && (++p >= cols)) /* skip the rest of the line as garbage */ c = skip_to_eol(fpi, c); } else if (n1 < 0 && n2 < 0 && n3 < 0) /* already stumbled into garbage, skip line, wait and see */ c = skip_to_eol(fpi, c); } else /* HEX_BITS */ { if (bcnt == 8) { putc_or_die(b, fpo); have_off++; want_off++; b = 0; bcnt = 0; if (++p >= cols) /* skip the rest of the line as garbage */ c = skip_to_eol(fpi, c); } } if (c == '\n') { if (hextype == HEX_NORMAL || hextype == HEX_BITS) want_off = 0; p = cols; ign_garb = 1; } } if (fflush(fpo) != 0) perror_exit(3); #ifdef TRY_SEEK fseek(fpo, 0L, SEEK_END); #endif fclose_or_die(fpi, fpo); 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) fputs_or_die(z, fp); if (zero_seen > 2) fputs_or_die("*\n", fp); } if (nz >= 0 || zero_seen > 0) fputs_or_die(l, fp); 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 }; static void begin_coloring_char (char *l, int *c, int e, int ebcdic) { if (ebcdic) { if ((e >= 75 && e <= 80) || (e >= 90 && e <= 97) || (e >= 107 && e <= 111) || (e >= 121 && e <= 127) || (e >= 129 && e <= 137) || (e >= 145 && e <= 154) || (e >= 162 && e <= 169) || (e >= 192 && e <= 201) || (e >= 208 && e <= 217) || (e >= 226 && e <= 233) || (e >= 240 && e <= 249) || (e == 189) || (e == 64) || (e == 173) || (e == 224) ) l[(*c)++] = COLOR_GREEN; else if (e == 37 || e == 13 || e == 5) l[(*c)++] = COLOR_YELLOW; else if (e == 0) l[(*c)++] = COLOR_WHITE; else if (e == 255) l[(*c)++] = COLOR_BLUE; else l[(*c)++] = COLOR_RED; } else /* ASCII */ { #if defined(__MVS__) && __CHARSET_LIB == 0 if (e >= 64) l[(*c)++] = COLOR_GREEN; #else if (e > 31 && e < 127) l[(*c)++] = COLOR_GREEN; #endif else if (e == 9 || e == 10 || e == 13) l[(*c)++] = COLOR_YELLOW; else if (e == 0) l[(*c)++] = COLOR_WHITE; else if (e == 255) l[(*c)++] = COLOR_BLUE; else l[(*c)++] = COLOR_RED; } l[(*c)++] = 'm'; } static int enable_color(void) { #ifdef WIN32 DWORD mode; HANDLE out; if (!isatty(1)) return 0; out = GetStdHandle(STD_OUTPUT_HANDLE); GetConsoleMode(out, &mode); mode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING; return (int)SetConsoleMode(out, mode); #elif defined(UNIX) return isatty(STDOUT_FILENO); #else return 0; #endif } int main(int argc, char *argv[]) { FILE *fp, *fpo; int c, e, p = 0, relseek = 1, negseek = 0, revert = 0, i, x; int cols = 0, colsgiven = 0, nonzero = 0, autoskip = 0, hextype = HEX_NORMAL; int capitalize = 0, decimal_offset = 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; char *varname = NULL; int addrlen = 9; int color = 0; char *no_color; no_color = getenv("NO_COLOR"); if (no_color == NULL || no_color[0] == '\0') color = enable_color(); #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, "-d", 2)) decimal_offset = 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)) { colsgiven = 1; cols = (int)strtol(pp + 2, NULL, 0); } else { if (!argv[2]) exit_with_usage(); colsgiven = 1; 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 (!STRNCMP(pp, "-n", 2)) { if (pp[2] && STRNCMP("ame", pp + 2, 3)) varname = pp + 2; else { if (!argv[2]) exit_with_usage(); varname = argv[2]; argv++; argc--; } } else if (!STRNCMP(pp, "-R", 2)) { char *pw = pp + 2; if (!pw[0]) { pw = argv[2]; argv++; argc--; } if (!pw) exit_with_usage(); if (!STRNCMP(pw, "always", 6)) { (void)enable_color(); color = 1; } else if (!STRNCMP(pw, "never", 5)) color = 0; else if (!STRNCMP(pw, "auto", 4)) color = enable_color(); else exit_with_usage(); } 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 (!colsgiven || (!cols && hextype != HEX_POSTSCRIPT)) 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 ((hextype == HEX_POSTSCRIPT && cols < 0) || (hextype != HEX_POSTSCRIPT && 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))) error_exit(1, "number of octets per group must be a power of 2 with -e."); 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); } #ifdef __MVS__ // Disable auto-conversion on input file descriptors __disableautocvt(fileno(fp)); #endif if (revert) switch (hextype) { case HEX_NORMAL: case HEX_POSTSCRIPT: case HEX_BITS: return huntype(fp, fpo, cols, hextype, negseek ? -seekoff : seekoff); break; default: error_exit(-1, "Sorry, cannot revert this type of hexdump"); } if (seekoff || negseek || !relseek) { #ifdef TRY_SEEK if (relseek) e = fseek(fp, negseek ? -seekoff : seekoff, SEEK_CUR); else e = fseek(fp, negseek ? -seekoff : seekoff, negseek ? SEEK_END : SEEK_SET); if (e < 0 && negseek) error_exit(4, "Sorry, cannot seek."); if (e >= 0) seekoff = ftell(fp); else #endif { long s = seekoff; while (s--) if (getc_or_die(fp) == EOF) { error_exit(4, "Sorry, cannot seek."); } } } if (hextype == HEX_CINCLUDE) { /* A user-set variable name overrides fp == stdin */ if (varname == NULL && fp != stdin) varname = argv[1]; if (varname != NULL) { FPRINTF_OR_DIE((fpo, "unsigned char %s", isdigit((unsigned char)varname[0]) ? "__" : "")); for (e = 0; (c = varname[e]) != 0; e++) putc_or_die(isalnum((unsigned char)c) ? CONDITIONAL_CAPITALIZE(c) : '_', fpo); fputs_or_die("[] = {\n", fpo); } p = 0; while ((length < 0 || p < length) && (c = getc_or_die(fp)) != EOF) { FPRINTF_OR_DIE((fpo, (hexx == hexxa) ? "%s0x%02x" : "%s0X%02X", (p % cols) ? ", " : (!p ? " " : ",\n "), c)); p++; } if (p) fputs_or_die("\n", fpo); if (varname != NULL) { fputs_or_die("};\n", fpo); FPRINTF_OR_DIE((fpo, "unsigned int %s", isdigit((unsigned char)varname[0]) ? "__" : "")); for (e = 0; (c = varname[e]) != 0; e++) putc_or_die(isalnum((unsigned char)c) ? CONDITIONAL_CAPITALIZE(c) : '_', fpo); FPRINTF_OR_DIE((fpo, "_%s = %d;\n", capitalize ? "LEN" : "len", p)); } fclose_or_die(fp, fpo); return 0; } if (hextype == HEX_POSTSCRIPT) { p = cols; while ((length < 0 || n < length) && (e = getc_or_die(fp)) != EOF) { putc_or_die(hexx[(e >> 4) & 0xf], fpo); putc_or_die(hexx[e & 0xf], fpo); n++; if (cols > 0 && !--p) { putc_or_die('\n', fpo); p = cols; } } if (cols == 0 || p < cols) putc_or_die('\n', fpo); fclose_or_die(fp, fpo); return 0; } /* hextype: HEX_NORMAL or HEX_BITS or HEX_LITTLEENDIAN */ if (hextype != HEX_BITS) { grplen = octspergrp + octspergrp + 1; /* chars per octet group */ if (color) grplen += 11 * octspergrp; /* color-code needs 11 extra characters */ } else /* hextype == HEX_BITS */ grplen = 8 * octspergrp + 1; while ((length < 0 || n < length) && (e = getc_or_die(fp)) != EOF) { if (p == 0) { addrlen = sprintf(l, decimal_offset ? "%08ld:" : "%08lx:", ((unsigned long)(n + seekoff + displayoff))); for (c = addrlen; c < LLEN; l[c++] = ' ') ; } x = hextype == HEX_LITTLEENDIAN ? p ^ (octspergrp-1) : p; c = addrlen + 1 + (grplen * x) / octspergrp; if (hextype == HEX_NORMAL || hextype == HEX_LITTLEENDIAN) { if (color) { COLOR_PROLOGUE begin_coloring_char(l,&c,e,ebcdic); l[c++] = hexx[(e >> 4) & 0xf]; l[c++] = hexx[e & 0xf]; COLOR_EPILOGUE } else /*No colors*/ { l[c] = hexx[(e >> 4) & 0xf]; l[++c] = hexx[e & 0xf]; } } else /* hextype == HEX_BITS */ { for (i = 7; i >= 0; i--) l[c++] = (e & (1 << i)) ? '1' : '0'; } if (e) nonzero++; /* When changing this update definition of LLEN above. */ if (hextype == HEX_LITTLEENDIAN) /* last group will be fully used, round up */ c = grplen * ((cols + octspergrp - 1) / octspergrp); else c = (grplen * cols - 1) / octspergrp; if (color) { if (hextype == HEX_BITS) c += addrlen + 3 + p*12; else c = addrlen + 3 + (grplen * cols - 1)/octspergrp + p*12; if (hextype == HEX_LITTLEENDIAN) c += 1; COLOR_PROLOGUE begin_coloring_char(l,&c,e,ebcdic); #if defined(__MVS__) && __CHARSET_LIB == 0 if (e >= 64) l[c++] = e; else l[c++] = '.'; #else if (ebcdic) e = (e < 64) ? '.' : etoa64[e-64]; l[c++] = (e > 31 && e < 127) ? e : '.'; #endif COLOR_EPILOGUE n++; if (++p == cols) { l[c++] = '\n'; l[c++] = '\0'; xxdline(fpo, l, autoskip ? nonzero : 1); nonzero = 0; p = 0; } } else /*no colors*/ { if (ebcdic) e = (e < 64) ? '.' : etoa64[e-64]; c += addrlen + 3 + p; l[c++] = #if defined(__MVS__) && __CHARSET_LIB == 0 (e >= 64) #else (e > 31 && e < 127) #endif ? e : '.'; n++; if (++p == cols) { l[c++] = '\n'; l[c] = '\0'; xxdline(fpo, l, autoskip ? nonzero : 1); nonzero = 0; p = 0; } } } if (p) { l[c++] = '\n'; l[c] = '\0'; if (color) { c++; x = p; if (hextype == HEX_LITTLEENDIAN) { int fill = octspergrp - (p % octspergrp); if (fill == octspergrp) fill = 0; c = addrlen + 1 + (grplen * (x - (octspergrp-fill))) / octspergrp; for (i = 0; i < fill;i++) { COLOR_PROLOGUE l[c++] = COLOR_RED; l[c++] = 'm'; l[c++] = ' '; /* empty space */ COLOR_EPILOGUE x++; p++; } } if (hextype != HEX_BITS) { c = addrlen + 1 + (grplen * x) / octspergrp; c += cols - p; c += (cols - p) / octspergrp; for (i = cols - p; i > 0;i--) { COLOR_PROLOGUE l[c++] = COLOR_RED; l[c++] = 'm'; l[c++] = ' '; /* empty space */ COLOR_EPILOGUE } } } xxdline(fpo, l, 1); } else if (autoskip) xxdline(fpo, l, -1); /* last chance to flush out suppressed lines */ fclose_or_die(fp, fpo); return 0; } /* vi:set ts=8 sw=4 sts=2 cino+={2 cino+=n-2 : */