Mercurial > vim
annotate src/xxd/xxd.c @ 27118:2f854597399f v8.2.4088
patch 8.2.4088: xxd cannot output everything in one line
Commit: https://github.com/vim/vim/commit/c0a1d370fa655cea9eaa74f5e605b95825dc9de1
Author: Erik Auerswald <auerswal@unix-ag.uni-kl.de>
Date: Fri Jan 14 11:58:48 2022 +0000
patch 8.2.4088: xxd cannot output everything in one line
Problem: Xxd cannot output everything in one line.
Solution: Make zero columns mean infinite columns. (Erik Auerswald,
closes #9524)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Fri, 14 Jan 2022 13:00:07 +0100 |
| parents | b9ede1952107 |
| children | 948c947cb1ed |
| rev | line source |
|---|---|
| 7 | 1 /* xxd: my hexdump facility. jw |
| 2 * | |
| 3 * 2.10.90 changed to word output | |
| 4 * 3.03.93 new indent style, dumb bug inserted and fixed. | |
| 5 * -c option, mls | |
| 6 * 26.04.94 better option parser, -ps, -l, -s added. | |
| 7 * 1.07.94 -r badly needs - as input file. Per default autoskip over | |
| 1197 | 8 * consecutive lines of zeroes, as unix od does. |
| 7 | 9 * -a shows them too. |
| 10 * -i dump as c-style #include "file.h" | |
| 11 * 1.11.95 if "xxd -i" knows the filename, an 'unsigned char filename_bits[]' | |
| 12 * array is written in correct c-syntax. | |
| 13 * -s improved, now defaults to absolute seek, relative requires a '+'. | |
| 14 * -r improved, now -r -s -0x... is supported. | |
| 15 * change/suppress leading '\0' bytes. | |
| 16 * -l n improved: stops exactly after n bytes. | |
| 17 * -r improved, better handling of partial lines with trailing garbage. | |
| 18 * -r improved, now -r -p works again! | |
| 19 * -r improved, less flushing, much faster now! (that was silly) | |
| 20 * 3.04.96 Per repeated request of a single person: autoskip defaults to off. | |
| 21 * 15.05.96 -v added. They want to know the version. | |
| 22 * -a fixed, to show last line inf file ends in all zeros. | |
| 23 * -u added: Print upper case hex-letters, as preferred by unix bc. | |
| 24 * -h added to usage message. Usage message extended. | |
| 25 * Now using outfile if specified even in normal mode, aehem. | |
| 26 * No longer mixing of ints and longs. May help doze people. | |
| 27 * Added binify ioctl for same reason. (Enough Doze stress for 1996!) | |
| 28 * 16.05.96 -p improved, removed occasional superfluous linefeed. | |
| 29 * 20.05.96 -l 0 fixed. tried to read anyway. | |
| 30 * 21.05.96 -i fixed. now honours -u, and prepends __ to numeric filenames. | |
| 31 * compile -DWIN32 for NT or W95. George V. Reilly, * -v improved :-) | |
| 32 * support --gnuish-longhorn-options | |
| 33 * 25.05.96 MAC support added: CodeWarrior already uses ``outline'' in Types.h | |
| 34 * which is included by MacHeaders (Axel Kielhorn). Renamed to | |
| 35 * xxdline(). | |
| 36 * 7.06.96 -i printed 'int' instead of 'char'. *blush* | |
| 37 * added Bram's OS2 ifdefs... | |
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38 * 18.07.96 gcc -Wall @ SunOS4 is now silent. |
| 7 | 39 * Added osver for MSDOS/DJGPP/WIN32. |
| 40 * 29.08.96 Added size_t to strncmp() for Amiga. | |
| 41 * 24.03.97 Windows NT support (Phil Hanna). Clean exit for Amiga WB (Bram) | |
| 42 * 02.04.97 Added -E option, to have EBCDIC translation instead of ASCII | |
| 216 | 43 * (azc10@yahoo.com) |
| 7 | 44 * 22.05.97 added -g (group octets) option (jcook@namerica.kla.com). |
| 45 * 23.09.98 nasty -p -r misfeature fixed: slightly wrong output, when -c was | |
| 46 * missing or wrong. | |
| 47 * 26.09.98 Fixed: 'xxd -i infile outfile' did not truncate outfile. | |
| 48 * 27.10.98 Fixed: -g option parser required blank. | |
| 49 * option -b added: 01000101 binary output in normal format. | |
| 50 * 16.05.00 Added VAXC changes by Stephen P. Wall | |
| 1197 | 51 * 16.05.00 Improved MMS file and merge for VMS by Zoltan Arpadffy |
| 2752 | 52 * 2011 March Better error handling by Florian Zumbiehl. |
| 53 * 2011 April Formatting by Bram Moolenaar | |
| 6655 | 54 * 08.06.2013 Little-endian hexdump (-e) and offset (-o) by Vadim Vygonets. |
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55 * 11.01.2019 Add full 64/32 bit range to -o and output by Christer Jensen. |
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56 * 04.02.2020 Add -d for decimal offsets by Aapo Rantalainen |
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57 * 14.01.2022 Disable extra newlines with -c0 -p by Erik Auerswald. |
| 7 | 58 * |
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59 * (c) 1990-1998 by Juergen Weigert (jnweiger@gmail.com) |
| 7 | 60 * |
| 6973 | 61 * I hereby grant permission to distribute and use xxd |
| 62 * under X11-MIT or GPL-2.0 (at the user's choice). | |
| 63 * | |
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64 * Contributions by Bram Moolenaar et al. |
| 7 | 65 */ |
| 714 | 66 |
| 67 /* Visual Studio 2005 has 'deprecated' many of the standard CRT functions */ | |
| 68 #if _MSC_VER >= 1400 | |
| 69 # define _CRT_SECURE_NO_DEPRECATE | |
| 70 # define _CRT_NONSTDC_NO_DEPRECATE | |
| 71 #endif | |
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72 #if !defined(CYGWIN) && defined(__CYGWIN__) |
| 1912 | 73 # define CYGWIN |
| 74 #endif | |
| 714 | 75 |
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76 #if (defined(__linux__) && !defined(__ANDROID__)) || defined(__CYGWIN__) |
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77 # define _XOPEN_SOURCE 700 /* for fdopen() */ |
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78 #endif |
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79 |
| 7 | 80 #include <stdio.h> |
| 81 #ifdef VAXC | |
| 82 # include <file.h> | |
| 83 #else | |
| 84 # include <fcntl.h> | |
| 85 #endif | |
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86 #if defined(WIN32) || defined(CYGWIN) |
| 7 | 87 # include <io.h> /* for setmode() */ |
| 88 #else | |
| 89 # ifdef UNIX | |
| 90 # include <unistd.h> | |
| 91 # endif | |
| 92 #endif | |
| 93 #include <stdlib.h> | |
| 94 #include <string.h> /* for strncmp() */ | |
| 95 #include <ctype.h> /* for isalnum() */ | |
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96 #include <limits.h> |
| 7 | 97 #if __MWERKS__ && !defined(BEBOX) |
| 98 # include <unix.h> /* for fdopen() on MAC */ | |
| 99 #endif | |
| 100 | |
| 101 | |
| 102 /* This corrects the problem of missing prototypes for certain functions | |
| 103 * in some GNU installations (e.g. SunOS 4.1.x). | |
| 104 * Darren Hiebert <darren@hmi.com> (sparc-sun-sunos4.1.3_U1/2.7.2.2) | |
| 105 */ | |
| 106 #if defined(__GNUC__) && defined(__STDC__) | |
| 107 # ifndef __USE_FIXED_PROTOTYPES__ | |
| 108 # define __USE_FIXED_PROTOTYPES__ | |
| 109 # endif | |
| 110 #endif | |
| 111 | |
| 112 #ifndef __USE_FIXED_PROTOTYPES__ | |
| 113 /* | |
| 114 * This is historic and works only if the compiler really has no prototypes: | |
| 115 * | |
| 116 * Include prototypes for Sun OS 4.x, when using an ANSI compiler. | |
| 117 * FILE is defined on OS 4.x, not on 5.x (Solaris). | |
| 118 * if __SVR4 is defined (some Solaris versions), don't include this. | |
| 119 */ | |
| 120 #if defined(sun) && defined(FILE) && !defined(__SVR4) && defined(__STDC__) | |
| 121 # define __P(a) a | |
| 122 /* excerpt from my sun_stdlib.h */ | |
| 123 extern int fprintf __P((FILE *, char *, ...)); | |
| 124 extern int fputs __P((char *, FILE *)); | |
| 125 extern int _flsbuf __P((unsigned char, FILE *)); | |
| 126 extern int _filbuf __P((FILE *)); | |
| 127 extern int fflush __P((FILE *)); | |
| 128 extern int fclose __P((FILE *)); | |
| 129 extern int fseek __P((FILE *, long, int)); | |
| 130 extern int rewind __P((FILE *)); | |
| 131 | |
| 132 extern void perror __P((char *)); | |
| 133 # endif | |
| 134 #endif | |
| 135 | |
| 136 extern long int strtol(); | |
| 137 extern long int ftell(); | |
| 138 | |
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139 char version[] = "xxd 2022-01-14 by Juergen Weigert et al."; |
| 7 | 140 #ifdef WIN32 |
| 141 char osver[] = " (Win32)"; | |
| 142 #else | |
| 143 char osver[] = ""; | |
| 144 #endif | |
| 145 | |
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146 #if defined(WIN32) |
| 7 | 147 # define BIN_READ(yes) ((yes) ? "rb" : "rt") |
| 148 # define BIN_WRITE(yes) ((yes) ? "wb" : "wt") | |
| 149 # define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT) | |
| 150 # define BIN_ASSIGN(fp, yes) setmode(fileno(fp), (yes) ? O_BINARY : O_TEXT) | |
| 602 | 151 # define PATH_SEP '\\' |
| 152 #elif defined(CYGWIN) | |
| 153 # define BIN_READ(yes) ((yes) ? "rb" : "rt") | |
| 154 # define BIN_WRITE(yes) ((yes) ? "wb" : "w") | |
| 155 # define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT) | |
| 156 # define BIN_ASSIGN(fp, yes) ((yes) ? (void) setmode(fileno(fp), O_BINARY) : (void) (fp)) | |
| 157 # define PATH_SEP '/' | |
| 7 | 158 #else |
| 159 # ifdef VMS | |
| 160 # define BIN_READ(dummy) "r" | |
| 161 # define BIN_WRITE(dummy) "w" | |
| 162 # define BIN_CREAT(dummy) O_CREAT | |
| 163 # define BIN_ASSIGN(fp, dummy) fp | |
| 164 # define PATH_SEP ']' | |
| 165 # define FILE_SEP '.' | |
| 166 # else | |
| 167 # define BIN_READ(dummy) "r" | |
| 168 # define BIN_WRITE(dummy) "w" | |
| 169 # define BIN_CREAT(dummy) O_CREAT | |
| 170 # define BIN_ASSIGN(fp, dummy) fp | |
| 171 # define PATH_SEP '/' | |
| 172 # endif | |
| 173 #endif | |
| 174 | |
| 175 /* open has only to arguments on the Mac */ | |
| 176 #if __MWERKS__ | |
| 177 # define OPEN(name, mode, umask) open(name, mode) | |
| 178 #else | |
| 179 # define OPEN(name, mode, umask) open(name, mode, umask) | |
| 180 #endif | |
| 181 | |
| 182 #ifdef AMIGA | |
| 183 # define STRNCMP(s1, s2, l) strncmp(s1, s2, (size_t)l) | |
| 184 #else | |
| 185 # define STRNCMP(s1, s2, l) strncmp(s1, s2, l) | |
| 186 #endif | |
| 187 | |
| 188 #ifndef __P | |
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189 # if defined(__STDC__) || defined(WIN32) |
| 7 | 190 # define __P(a) a |
| 191 # else | |
| 192 # define __P(a) () | |
| 193 # endif | |
| 194 #endif | |
| 195 | |
| 196 #define TRY_SEEK /* attempt to use lseek, or skip forward by reading */ | |
| 197 #define COLS 256 /* change here, if you ever need more columns */ | |
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198 #define LLEN ((2*(int)sizeof(unsigned long)) + 4 + (9*COLS-1) + COLS + 2) |
| 7 | 199 |
| 200 char hexxa[] = "0123456789abcdef0123456789ABCDEF", *hexx = hexxa; | |
| 201 | |
| 202 /* the different hextypes known by this program: */ | |
| 203 #define HEX_NORMAL 0 | |
| 204 #define HEX_POSTSCRIPT 1 | |
| 205 #define HEX_CINCLUDE 2 | |
| 206 #define HEX_BITS 3 /* not hex a dump, but bits: 01111001 */ | |
| 6655 | 207 #define HEX_LITTLEENDIAN 4 |
| 7 | 208 |
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209 #define CONDITIONAL_CAPITALIZE(c) (capitalize ? toupper((int)c) : c) |
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210 |
| 2752 | 211 static char *pname; |
| 212 | |
| 213 static void | |
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214 exit_with_usage(void) |
| 7 | 215 { |
| 216 fprintf(stderr, "Usage:\n %s [options] [infile [outfile]]\n", pname); | |
| 217 fprintf(stderr, " or\n %s -r [-s [-]offset] [-c cols] [-ps] [infile [outfile]]\n", pname); | |
| 218 fprintf(stderr, "Options:\n"); | |
| 219 fprintf(stderr, " -a toggle autoskip: A single '*' replaces nul-lines. Default off.\n"); | |
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220 fprintf(stderr, " -b binary digit dump (incompatible with -ps,-i,-r). Default hex.\n"); |
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221 fprintf(stderr, " -C capitalize variable names in C include file style (-i).\n"); |
| 7 | 222 fprintf(stderr, " -c cols format <cols> octets per line. Default 16 (-i: 12, -ps: 30).\n"); |
| 223 fprintf(stderr, " -E show characters in EBCDIC. Default ASCII.\n"); | |
| 6655 | 224 fprintf(stderr, " -e little-endian dump (incompatible with -ps,-i,-r).\n"); |
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225 fprintf(stderr, " -g bytes number of octets per group in normal output. Default 2 (-e: 4).\n"); |
| 7 | 226 fprintf(stderr, " -h print this summary.\n"); |
| 227 fprintf(stderr, " -i output in C include file style.\n"); | |
| 228 fprintf(stderr, " -l len stop after <len> octets.\n"); | |
| 6655 | 229 fprintf(stderr, " -o off add <off> to the displayed file position.\n"); |
| 7 | 230 fprintf(stderr, " -ps output in postscript plain hexdump style.\n"); |
| 231 fprintf(stderr, " -r reverse operation: convert (or patch) hexdump into binary.\n"); | |
| 232 fprintf(stderr, " -r -s off revert with <off> added to file positions found in hexdump.\n"); | |
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233 fprintf(stderr, " -d show offset in decimal instead of hex.\n"); |
| 7 | 234 fprintf(stderr, " -s %sseek start at <seek> bytes abs. %sinfile offset.\n", |
| 235 #ifdef TRY_SEEK | |
| 236 "[+][-]", "(or +: rel.) "); | |
| 237 #else | |
| 238 "", ""); | |
| 239 #endif | |
| 240 fprintf(stderr, " -u use upper case hex letters.\n"); | |
| 241 fprintf(stderr, " -v show version: \"%s%s\".\n", version, osver); | |
| 242 exit(1); | |
| 243 } | |
| 244 | |
| 2752 | 245 static void |
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246 perror_exit(int ret) |
| 2752 | 247 { |
| 248 fprintf(stderr, "%s: ", pname); | |
| 249 perror(NULL); | |
| 250 exit(ret); | |
| 251 } | |
| 252 | |
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253 static void |
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254 error_exit(int ret, char *msg) |
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255 { |
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256 fprintf(stderr, "%s: %s\n", pname, msg); |
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257 exit(ret); |
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258 } |
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259 |
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260 static int |
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261 getc_or_die(FILE *fpi) |
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262 { |
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263 int c = getc(fpi); |
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264 if (c == EOF && ferror(fpi)) |
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265 perror_exit(2); |
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266 return c; |
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267 } |
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268 |
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269 static void |
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270 putc_or_die(int c, FILE *fpo) |
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271 { |
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272 if (putc(c, fpo) == EOF) |
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273 perror_exit(3); |
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274 } |
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275 |
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276 static void |
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277 fputs_or_die(char *s, FILE *fpo) |
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278 { |
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279 if (fputs(s, fpo) == EOF) |
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280 perror_exit(3); |
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281 } |
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282 |
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283 /* Use a macro to allow for different arguments. */ |
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284 #define FPRINTF_OR_DIE(args) if (fprintf args < 0) perror_exit(3) |
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285 |
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286 static void |
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287 fclose_or_die(FILE *fpi, FILE *fpo) |
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288 { |
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289 if (fclose(fpo) != 0) |
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290 perror_exit(3); |
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291 if (fclose(fpi) != 0) |
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292 perror_exit(2); |
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293 } |
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294 |
| 7 | 295 /* |
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296 * If "c" is a hex digit, return the value. |
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297 * Otherwise return -1. |
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298 */ |
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299 static int |
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300 parse_hex_digit(int c) |
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301 { |
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302 return (c >= '0' && c <= '9') ? c - '0' |
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303 : (c >= 'a' && c <= 'f') ? c - 'a' + 10 |
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304 : (c >= 'A' && c <= 'F') ? c - 'A' + 10 |
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305 : -1; |
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306 } |
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307 |
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308 /* |
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309 * Ignore text on "fpi" until end-of-line or end-of-file. |
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310 * Return the '\n' or EOF character. |
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311 * When an error is encountered exit with an error message. |
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312 */ |
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313 static int |
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314 skip_to_eol(FILE *fpi, int c) |
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315 { |
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316 while (c != '\n' && c != EOF) |
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317 c = getc_or_die(fpi); |
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318 return c; |
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319 } |
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320 |
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321 /* |
| 7 | 322 * Max. cols binary characters are decoded from the input stream per line. |
| 323 * Two adjacent garbage characters after evaluated data delimit valid data. | |
| 324 * Everything up to the next newline is discarded. | |
| 325 * | |
| 326 * The name is historic and came from 'undo type opt h'. | |
| 327 */ | |
| 2752 | 328 static int |
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329 huntype( |
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330 FILE *fpi, |
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331 FILE *fpo, |
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332 int cols, |
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333 int hextype, |
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334 long base_off) |
| 7 | 335 { |
| 336 int c, ign_garb = 1, n1 = -1, n2 = 0, n3, p = cols; | |
| 337 long have_off = 0, want_off = 0; | |
| 338 | |
| 339 rewind(fpi); | |
| 340 | |
| 341 while ((c = getc(fpi)) != EOF) | |
| 342 { | |
| 343 if (c == '\r') /* Doze style input file? */ | |
| 344 continue; | |
| 345 | |
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346 /* Allow multiple spaces. This doesn't work when there is normal text |
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347 * after the hex codes in the last line that looks like hex, thus only |
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348 * use it for PostScript format. */ |
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349 if (hextype == HEX_POSTSCRIPT && (c == ' ' || c == '\n' || c == '\t')) |
| 856 | 350 continue; |
| 809 | 351 |
| 7 | 352 n3 = n2; |
| 353 n2 = n1; | |
| 354 | |
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355 n1 = parse_hex_digit(c); |
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356 if (n1 == -1 && ign_garb) |
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357 continue; |
| 7 | 358 |
| 359 ign_garb = 0; | |
| 360 | |
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361 if (!hextype && (p >= cols)) |
| 7 | 362 { |
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363 if (n1 < 0) |
| 7 | 364 { |
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365 p = 0; |
| 7 | 366 continue; |
| 367 } | |
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368 want_off = (want_off << 4) | n1; |
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369 continue; |
| 7 | 370 } |
| 371 | |
| 372 if (base_off + want_off != have_off) | |
| 373 { | |
| 2752 | 374 if (fflush(fpo) != 0) |
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375 perror_exit(3); |
| 7 | 376 #ifdef TRY_SEEK |
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377 if (fseek(fpo, base_off + want_off - have_off, SEEK_CUR) >= 0) |
| 7 | 378 have_off = base_off + want_off; |
| 379 #endif | |
| 380 if (base_off + want_off < have_off) | |
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381 error_exit(5, "Sorry, cannot seek backwards."); |
| 7 | 382 for (; have_off < base_off + want_off; have_off++) |
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383 putc_or_die(0, fpo); |
| 7 | 384 } |
| 385 | |
| 386 if (n2 >= 0 && n1 >= 0) | |
| 387 { | |
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388 putc_or_die((n2 << 4) | n1, fpo); |
| 7 | 389 have_off++; |
| 390 want_off++; | |
| 391 n1 = -1; | |
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392 if (!hextype && (++p >= cols)) |
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393 /* skip the rest of the line as garbage */ |
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394 c = skip_to_eol(fpi, c); |
| 7 | 395 } |
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396 else if (n1 < 0 && n2 < 0 && n3 < 0) |
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397 /* already stumbled into garbage, skip line, wait and see */ |
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398 c = skip_to_eol(fpi, c); |
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399 |
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400 if (c == '\n') |
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401 { |
| 7 | 402 if (!hextype) |
| 403 want_off = 0; | |
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404 p = cols; |
| 7 | 405 ign_garb = 1; |
| 406 } | |
| 407 } | |
| 2752 | 408 if (fflush(fpo) != 0) |
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409 perror_exit(3); |
| 7 | 410 #ifdef TRY_SEEK |
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411 fseek(fpo, 0L, SEEK_END); |
| 7 | 412 #endif |
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413 fclose_or_die(fpi, fpo); |
| 7 | 414 return 0; |
| 415 } | |
| 416 | |
| 417 /* | |
| 418 * Print line l. If nz is false, xxdline regards the line a line of | |
| 419 * zeroes. If there are three or more consecutive lines of zeroes, | |
| 420 * they are replaced by a single '*' character. | |
| 421 * | |
| 422 * If the output ends with more than two lines of zeroes, you | |
| 423 * should call xxdline again with l being the last line and nz | |
| 424 * negative. This ensures that the last line is shown even when | |
| 425 * it is all zeroes. | |
| 426 * | |
| 427 * If nz is always positive, lines are never suppressed. | |
| 428 */ | |
| 2752 | 429 static void |
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430 xxdline(FILE *fp, char *l, int nz) |
| 7 | 431 { |
| 432 static char z[LLEN+1]; | |
| 433 static int zero_seen = 0; | |
| 434 | |
| 435 if (!nz && zero_seen == 1) | |
| 436 strcpy(z, l); | |
| 437 | |
| 438 if (nz || !zero_seen++) | |
| 439 { | |
| 440 if (nz) | |
| 441 { | |
| 442 if (nz < 0) | |
| 443 zero_seen--; | |
| 444 if (zero_seen == 2) | |
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445 fputs_or_die(z, fp); |
| 7 | 446 if (zero_seen > 2) |
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447 fputs_or_die("*\n", fp); |
| 7 | 448 } |
| 449 if (nz >= 0 || zero_seen > 0) | |
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450 fputs_or_die(l, fp); |
| 7 | 451 if (nz) |
| 452 zero_seen = 0; | |
| 453 } | |
| 454 } | |
| 455 | |
| 456 /* This is an EBCDIC to ASCII conversion table */ | |
| 457 /* from a proposed BTL standard April 16, 1979 */ | |
| 458 static unsigned char etoa64[] = | |
| 459 { | |
| 460 0040,0240,0241,0242,0243,0244,0245,0246, | |
| 461 0247,0250,0325,0056,0074,0050,0053,0174, | |
| 462 0046,0251,0252,0253,0254,0255,0256,0257, | |
| 463 0260,0261,0041,0044,0052,0051,0073,0176, | |
| 464 0055,0057,0262,0263,0264,0265,0266,0267, | |
| 465 0270,0271,0313,0054,0045,0137,0076,0077, | |
| 466 0272,0273,0274,0275,0276,0277,0300,0301, | |
| 467 0302,0140,0072,0043,0100,0047,0075,0042, | |
| 468 0303,0141,0142,0143,0144,0145,0146,0147, | |
| 469 0150,0151,0304,0305,0306,0307,0310,0311, | |
| 470 0312,0152,0153,0154,0155,0156,0157,0160, | |
| 471 0161,0162,0136,0314,0315,0316,0317,0320, | |
| 472 0321,0345,0163,0164,0165,0166,0167,0170, | |
| 473 0171,0172,0322,0323,0324,0133,0326,0327, | |
| 474 0330,0331,0332,0333,0334,0335,0336,0337, | |
| 475 0340,0341,0342,0343,0344,0135,0346,0347, | |
| 476 0173,0101,0102,0103,0104,0105,0106,0107, | |
| 477 0110,0111,0350,0351,0352,0353,0354,0355, | |
| 478 0175,0112,0113,0114,0115,0116,0117,0120, | |
| 479 0121,0122,0356,0357,0360,0361,0362,0363, | |
| 480 0134,0237,0123,0124,0125,0126,0127,0130, | |
| 481 0131,0132,0364,0365,0366,0367,0370,0371, | |
| 482 0060,0061,0062,0063,0064,0065,0066,0067, | |
| 483 0070,0071,0372,0373,0374,0375,0376,0377 | |
| 484 }; | |
| 485 | |
| 2752 | 486 int |
|
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
487 main(int argc, char *argv[]) |
| 7 | 488 { |
| 489 FILE *fp, *fpo; | |
| 490 int c, e, p = 0, relseek = 1, negseek = 0, revert = 0; | |
|
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changeset
|
491 int cols = 0, colsgiven = 0, nonzero = 0, autoskip = 0, hextype = HEX_NORMAL; |
|
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changeset
|
492 int capitalize = 0, decimal_offset = 0; |
| 7 | 493 int ebcdic = 0; |
| 494 int octspergrp = -1; /* number of octets grouped in output */ | |
| 495 int grplen; /* total chars per octet group */ | |
|
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|
496 long length = -1, n = 0, seekoff = 0; |
|
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|
497 unsigned long displayoff = 0; |
| 2770 | 498 static char l[LLEN+1]; /* static because it may be too big for stack */ |
| 2752 | 499 char *pp; |
|
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changeset
|
500 int addrlen = 9; |
| 7 | 501 |
| 502 #ifdef AMIGA | |
| 503 /* This program doesn't work when started from the Workbench */ | |
| 504 if (argc == 0) | |
| 505 exit(1); | |
| 506 #endif | |
| 507 | |
| 508 pname = argv[0]; | |
| 509 for (pp = pname; *pp; ) | |
| 510 if (*pp++ == PATH_SEP) | |
| 511 pname = pp; | |
| 512 #ifdef FILE_SEP | |
| 513 for (pp = pname; *pp; pp++) | |
| 514 if (*pp == FILE_SEP) | |
| 515 { | |
| 516 *pp = '\0'; | |
| 517 break; | |
| 518 } | |
| 519 #endif | |
| 520 | |
| 521 while (argc >= 2) | |
| 522 { | |
| 523 pp = argv[1] + (!STRNCMP(argv[1], "--", 2) && argv[1][2]); | |
| 524 if (!STRNCMP(pp, "-a", 2)) autoskip = 1 - autoskip; | |
| 525 else if (!STRNCMP(pp, "-b", 2)) hextype = HEX_BITS; | |
| 6655 | 526 else if (!STRNCMP(pp, "-e", 2)) hextype = HEX_LITTLEENDIAN; |
| 7 | 527 else if (!STRNCMP(pp, "-u", 2)) hexx = hexxa + 16; |
| 528 else if (!STRNCMP(pp, "-p", 2)) hextype = HEX_POSTSCRIPT; | |
| 529 else if (!STRNCMP(pp, "-i", 2)) hextype = HEX_CINCLUDE; | |
|
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changeset
|
530 else if (!STRNCMP(pp, "-C", 2)) capitalize = 1; |
|
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changeset
|
531 else if (!STRNCMP(pp, "-d", 2)) decimal_offset = 1; |
| 7 | 532 else if (!STRNCMP(pp, "-r", 2)) revert++; |
| 533 else if (!STRNCMP(pp, "-E", 2)) ebcdic++; | |
| 534 else if (!STRNCMP(pp, "-v", 2)) | |
| 535 { | |
| 536 fprintf(stderr, "%s%s\n", version, osver); | |
| 537 exit(0); | |
| 538 } | |
| 539 else if (!STRNCMP(pp, "-c", 2)) | |
| 540 { | |
|
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541 if (pp[2] && !STRNCMP("apitalize", pp + 2, 9)) |
|
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patch 8.1.0821: xxd "usage" output and other arguments not tested
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542 capitalize = 1; |
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543 else if (pp[2] && STRNCMP("ols", pp + 2, 3)) |
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544 { |
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545 colsgiven = 1; |
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546 cols = (int)strtol(pp + 2, NULL, 0); |
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547 } |
| 7 | 548 else |
| 549 { | |
| 550 if (!argv[2]) | |
| 2752 | 551 exit_with_usage(); |
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changeset
|
552 colsgiven = 1; |
| 7 | 553 cols = (int)strtol(argv[2], NULL, 0); |
| 554 argv++; | |
| 555 argc--; | |
| 556 } | |
| 557 } | |
| 558 else if (!STRNCMP(pp, "-g", 2)) | |
| 559 { | |
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560 if (pp[2] && STRNCMP("roup", pp + 2, 4)) |
| 7 | 561 octspergrp = (int)strtol(pp + 2, NULL, 0); |
| 562 else | |
| 563 { | |
| 564 if (!argv[2]) | |
| 2752 | 565 exit_with_usage(); |
| 7 | 566 octspergrp = (int)strtol(argv[2], NULL, 0); |
| 567 argv++; | |
| 568 argc--; | |
| 569 } | |
| 570 } | |
| 6655 | 571 else if (!STRNCMP(pp, "-o", 2)) |
| 572 { | |
|
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573 int reloffset = 0; |
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574 int negoffset = 0; |
| 6655 | 575 if (pp[2] && STRNCMP("ffset", pp + 2, 5)) |
|
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changeset
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576 displayoff = strtoul(pp + 2, NULL, 0); |
| 6655 | 577 else |
| 578 { | |
| 579 if (!argv[2]) | |
| 580 exit_with_usage(); | |
|
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581 |
|
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changeset
|
582 if (argv[2][0] == '+') |
|
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583 reloffset++; |
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584 if (argv[2][reloffset] == '-') |
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585 negoffset++; |
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586 |
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587 if (negoffset) |
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588 displayoff = ULONG_MAX - strtoul(argv[2] + reloffset+negoffset, NULL, 0) + 1; |
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589 else |
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590 displayoff = strtoul(argv[2] + reloffset+negoffset, NULL, 0); |
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changeset
|
591 |
| 6655 | 592 argv++; |
| 593 argc--; | |
| 594 } | |
| 595 } | |
| 7 | 596 else if (!STRNCMP(pp, "-s", 2)) |
| 597 { | |
| 598 relseek = 0; | |
| 599 negseek = 0; | |
| 600 if (pp[2] && STRNCMP("kip", pp+2, 3) && STRNCMP("eek", pp+2, 3)) | |
| 601 { | |
| 602 #ifdef TRY_SEEK | |
| 603 if (pp[2] == '+') | |
| 604 relseek++; | |
| 605 if (pp[2+relseek] == '-') | |
| 606 negseek++; | |
| 607 #endif | |
| 608 seekoff = strtol(pp + 2+relseek+negseek, (char **)NULL, 0); | |
| 609 } | |
| 610 else | |
| 611 { | |
| 612 if (!argv[2]) | |
| 2752 | 613 exit_with_usage(); |
| 7 | 614 #ifdef TRY_SEEK |
| 615 if (argv[2][0] == '+') | |
| 616 relseek++; | |
| 617 if (argv[2][relseek] == '-') | |
| 618 negseek++; | |
| 619 #endif | |
| 620 seekoff = strtol(argv[2] + relseek+negseek, (char **)NULL, 0); | |
| 621 argv++; | |
| 622 argc--; | |
| 623 } | |
| 624 } | |
| 625 else if (!STRNCMP(pp, "-l", 2)) | |
| 626 { | |
| 627 if (pp[2] && STRNCMP("en", pp + 2, 2)) | |
| 628 length = strtol(pp + 2, (char **)NULL, 0); | |
| 629 else | |
| 630 { | |
| 631 if (!argv[2]) | |
| 2752 | 632 exit_with_usage(); |
| 7 | 633 length = strtol(argv[2], (char **)NULL, 0); |
| 634 argv++; | |
| 635 argc--; | |
| 636 } | |
| 637 } | |
| 638 else if (!strcmp(pp, "--")) /* end of options */ | |
| 639 { | |
| 640 argv++; | |
| 641 argc--; | |
| 642 break; | |
| 643 } | |
| 644 else if (pp[0] == '-' && pp[1]) /* unknown option */ | |
| 2752 | 645 exit_with_usage(); |
| 7 | 646 else |
| 647 break; /* not an option */ | |
| 648 | |
| 649 argv++; /* advance to next argument */ | |
| 650 argc--; | |
| 651 } | |
| 652 | |
|
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diff
changeset
|
653 if (!colsgiven || (!cols && hextype != HEX_POSTSCRIPT)) |
| 7 | 654 switch (hextype) |
| 655 { | |
| 656 case HEX_POSTSCRIPT: cols = 30; break; | |
| 657 case HEX_CINCLUDE: cols = 12; break; | |
| 658 case HEX_BITS: cols = 6; break; | |
| 659 case HEX_NORMAL: | |
| 6655 | 660 case HEX_LITTLEENDIAN: |
| 7 | 661 default: cols = 16; break; |
| 662 } | |
| 663 | |
| 664 if (octspergrp < 0) | |
| 665 switch (hextype) | |
| 666 { | |
| 667 case HEX_BITS: octspergrp = 1; break; | |
| 668 case HEX_NORMAL: octspergrp = 2; break; | |
| 6655 | 669 case HEX_LITTLEENDIAN: octspergrp = 4; break; |
| 7 | 670 case HEX_POSTSCRIPT: |
| 671 case HEX_CINCLUDE: | |
| 672 default: octspergrp = 0; break; | |
| 673 } | |
| 674 | |
|
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changeset
|
675 if ((hextype == HEX_POSTSCRIPT && cols < 0) || |
|
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diff
changeset
|
676 (hextype != HEX_POSTSCRIPT && cols < 1) || |
|
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diff
changeset
|
677 ((hextype == HEX_NORMAL || hextype == HEX_BITS || hextype == HEX_LITTLEENDIAN) |
| 1452 | 678 && (cols > COLS))) |
| 7 | 679 { |
| 680 fprintf(stderr, "%s: invalid number of columns (max. %d).\n", pname, COLS); | |
| 681 exit(1); | |
| 682 } | |
| 683 | |
| 6655 | 684 if (octspergrp < 1 || octspergrp > cols) |
| 7 | 685 octspergrp = cols; |
| 6655 | 686 else if (hextype == HEX_LITTLEENDIAN && (octspergrp & (octspergrp-1))) |
|
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patch 8.2.3554: xxd has various way to exit
Bram Moolenaar <Bram@vim.org>
parents:
26036
diff
changeset
|
687 error_exit(1, "number of octets per group must be a power of 2 with -e."); |
| 7 | 688 |
| 689 if (argc > 3) | |
| 2752 | 690 exit_with_usage(); |
| 7 | 691 |
| 692 if (argc == 1 || (argv[1][0] == '-' && !argv[1][1])) | |
| 693 BIN_ASSIGN(fp = stdin, !revert); | |
| 694 else | |
| 695 { | |
| 696 if ((fp = fopen(argv[1], BIN_READ(!revert))) == NULL) | |
| 697 { | |
| 698 fprintf(stderr,"%s: ", pname); | |
| 699 perror(argv[1]); | |
| 700 return 2; | |
| 701 } | |
| 702 } | |
| 703 | |
| 704 if (argc < 3 || (argv[2][0] == '-' && !argv[2][1])) | |
| 705 BIN_ASSIGN(fpo = stdout, revert); | |
| 706 else | |
| 707 { | |
| 708 int fd; | |
| 709 int mode = revert ? O_WRONLY : (O_TRUNC|O_WRONLY); | |
| 710 | |
| 711 if (((fd = OPEN(argv[2], mode | BIN_CREAT(revert), 0666)) < 0) || | |
| 712 (fpo = fdopen(fd, BIN_WRITE(revert))) == NULL) | |
| 713 { | |
| 714 fprintf(stderr, "%s: ", pname); | |
| 715 perror(argv[2]); | |
| 716 return 3; | |
| 717 } | |
| 718 rewind(fpo); | |
| 719 } | |
| 720 | |
| 721 if (revert) | |
| 722 { | |
| 723 if (hextype && (hextype != HEX_POSTSCRIPT)) | |
|
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diff
changeset
|
724 error_exit(-1, "Sorry, cannot revert this type of hexdump"); |
|
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patch 8.2.3554: xxd has various way to exit
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
725 return huntype(fp, fpo, cols, hextype, |
| 7 | 726 negseek ? -seekoff : seekoff); |
| 727 } | |
| 728 | |
| 729 if (seekoff || negseek || !relseek) | |
| 730 { | |
| 731 #ifdef TRY_SEEK | |
| 732 if (relseek) | |
|
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changeset
|
733 e = fseek(fp, negseek ? -seekoff : seekoff, SEEK_CUR); |
| 7 | 734 else |
|
26123
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patch 8.2.3594: xxd code is a bit difficult to understand
Bram Moolenaar <Bram@vim.org>
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changeset
|
735 e = fseek(fp, negseek ? -seekoff : seekoff, |
|
56d1d2cb4ad5
patch 8.2.3594: xxd code is a bit difficult to understand
Bram Moolenaar <Bram@vim.org>
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changeset
|
736 negseek ? SEEK_END : SEEK_SET); |
| 7 | 737 if (e < 0 && negseek) |
|
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patch 8.2.3714: some unused assignments and ugly code in xxd
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diff
changeset
|
738 error_exit(4, "Sorry, cannot seek."); |
| 7 | 739 if (e >= 0) |
| 740 seekoff = ftell(fp); | |
| 741 else | |
| 742 #endif | |
| 743 { | |
| 744 long s = seekoff; | |
| 745 | |
| 746 while (s--) | |
|
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patch 8.2.3714: some unused assignments and ugly code in xxd
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diff
changeset
|
747 if (getc_or_die(fp) == EOF) |
| 2754 | 748 { |
|
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diff
changeset
|
749 error_exit(4, "Sorry, cannot seek."); |
| 2754 | 750 } |
| 7 | 751 } |
| 752 } | |
| 753 | |
| 754 if (hextype == HEX_CINCLUDE) | |
| 755 { | |
| 756 if (fp != stdin) | |
| 757 { | |
|
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changeset
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758 FPRINTF_OR_DIE((fpo, "unsigned char %s", isdigit((int)argv[1][0]) ? "__" : "")); |
| 7 | 759 for (e = 0; (c = argv[1][e]) != 0; e++) |
|
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patch 8.2.3670: error checks repeated several times
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diff
changeset
|
760 putc_or_die(isalnum(c) ? CONDITIONAL_CAPITALIZE(c) : '_', fpo); |
|
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changeset
|
761 fputs_or_die("[] = {\n", fpo); |
| 7 | 762 } |
| 763 | |
| 764 p = 0; | |
| 2752 | 765 c = 0; |
|
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patch 8.2.3680: repeated code in xxd
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changeset
|
766 while ((length < 0 || p < length) && (c = getc_or_die(fp)) != EOF) |
| 7 | 767 { |
|
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changeset
|
768 FPRINTF_OR_DIE((fpo, (hexx == hexxa) ? "%s0x%02x" : "%s0X%02X", |
|
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diff
changeset
|
769 (p % cols) ? ", " : (!p ? " " : ",\n "), c)); |
| 7 | 770 p++; |
| 771 } | |
| 772 | |
|
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patch 8.2.3670: error checks repeated several times
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changeset
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773 if (p) |
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774 fputs_or_die("\n", fpo); |
| 7 | 775 |
| 776 if (fp != stdin) | |
| 777 { | |
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patch 8.2.3680: repeated code in xxd
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778 fputs_or_die("};\n", fpo); |
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patch 8.2.3714: some unused assignments and ugly code in xxd
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779 FPRINTF_OR_DIE((fpo, "unsigned int %s", isdigit((int)argv[1][0]) ? "__" : "")); |
| 7 | 780 for (e = 0; (c = argv[1][e]) != 0; e++) |
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781 putc_or_die(isalnum(c) ? CONDITIONAL_CAPITALIZE(c) : '_', fpo); |
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782 FPRINTF_OR_DIE((fpo, "_%s = %d;\n", capitalize ? "LEN" : "len", p)); |
| 7 | 783 } |
| 784 | |
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785 fclose_or_die(fp, fpo); |
| 7 | 786 return 0; |
| 787 } | |
| 788 | |
| 789 if (hextype == HEX_POSTSCRIPT) | |
| 790 { | |
| 791 p = cols; | |
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patch 8.2.3680: repeated code in xxd
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792 while ((length < 0 || n < length) && (e = getc_or_die(fp)) != EOF) |
| 7 | 793 { |
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794 putc_or_die(hexx[(e >> 4) & 0xf], fpo); |
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795 putc_or_die(hexx[e & 0xf], fpo); |
| 7 | 796 n++; |
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patch 8.2.4088: xxd cannot output everything in one line
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797 if (cols > 0 && !--p) |
| 7 | 798 { |
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799 putc_or_die('\n', fpo); |
| 7 | 800 p = cols; |
| 801 } | |
| 802 } | |
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803 if (cols == 0 || p < cols) |
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804 putc_or_die('\n', fpo); |
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805 fclose_or_die(fp, fpo); |
| 7 | 806 return 0; |
| 807 } | |
| 808 | |
| 6655 | 809 /* hextype: HEX_NORMAL or HEX_BITS or HEX_LITTLEENDIAN */ |
| 7 | 810 |
| 6655 | 811 if (hextype != HEX_BITS) |
| 7 | 812 grplen = octspergrp + octspergrp + 1; /* chars per octet group */ |
| 813 else /* hextype == HEX_BITS */ | |
| 814 grplen = 8 * octspergrp + 1; | |
| 815 | |
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816 while ((length < 0 || n < length) && (e = getc_or_die(fp)) != EOF) |
| 7 | 817 { |
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patch 8.2.3658: duplicate code in xxd
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818 int x; |
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819 |
| 7 | 820 if (p == 0) |
| 821 { | |
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patch 8.2.3641: xxd code has duplicate expressions
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822 addrlen = sprintf(l, decimal_offset ? "%08ld:" : "%08lx:", |
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patch 8.2.0854: xxd cannot show offset as a decimal number
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823 ((unsigned long)(n + seekoff + displayoff))); |
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patch 8.1.0854: xxd does not work with more than 32 bit addresses
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824 for (c = addrlen; c < LLEN; l[c++] = ' '); |
| 7 | 825 } |
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826 x = hextype == HEX_LITTLEENDIAN ? p ^ (octspergrp-1) : p; |
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827 c = addrlen + 1 + (grplen * x) / octspergrp; |
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828 if (hextype == HEX_NORMAL || hextype == HEX_LITTLEENDIAN) |
| 7 | 829 { |
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830 l[c] = hexx[(e >> 4) & 0xf]; |
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831 l[++c] = hexx[e & 0xf]; |
| 7 | 832 } |
| 833 else /* hextype == HEX_BITS */ | |
| 834 { | |
| 835 int i; | |
| 836 for (i = 7; i >= 0; i--) | |
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837 l[c++] = (e & (1 << i)) ? '1' : '0'; |
| 7 | 838 } |
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patch 8.0.1537: xxd does not skip NUL lines when using ebcdic
Christian Brabandt <cb@256bit.org>
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839 if (e) |
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patch 8.0.1537: xxd does not skip NUL lines when using ebcdic
Christian Brabandt <cb@256bit.org>
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840 nonzero++; |
| 7 | 841 if (ebcdic) |
| 842 e = (e < 64) ? '.' : etoa64[e-64]; | |
| 1452 | 843 /* When changing this update definition of LLEN above. */ |
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844 c = addrlen + 3 + (grplen * cols - 1)/octspergrp + p; |
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845 l[c++] = |
| 7 | 846 #ifdef __MVS__ |
| 847 (e >= 64) | |
| 848 #else | |
| 849 (e > 31 && e < 127) | |
| 850 #endif | |
| 851 ? e : '.'; | |
| 852 n++; | |
| 853 if (++p == cols) | |
| 854 { | |
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855 l[c] = '\n'; |
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856 l[++c] = '\0'; |
| 7 | 857 xxdline(fpo, l, autoskip ? nonzero : 1); |
| 858 nonzero = 0; | |
| 859 p = 0; | |
| 860 } | |
| 861 } | |
| 862 if (p) | |
| 863 { | |
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864 l[c] = '\n'; |
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865 l[++c] = '\0'; |
| 7 | 866 xxdline(fpo, l, 1); |
| 867 } | |
| 868 else if (autoskip) | |
| 1197 | 869 xxdline(fpo, l, -1); /* last chance to flush out suppressed lines */ |
| 7 | 870 |
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871 fclose_or_die(fp, fpo); |
| 7 | 872 return 0; |
| 873 } | |
| 2752 | 874 |
| 875 /* vi:set ts=8 sw=4 sts=2 cino+={2 cino+=n-2 : */ |