Mercurial > vim
annotate src/xxd/xxd.c @ 26254:3a13efec0016 v8.2.3658
patch 8.2.3658: duplicate code in xxd
Commit: https://github.com/vim/vim/commit/48608b4a4bfab4b9c0c9199d57b7e876c56db74c
Author: DungSaga <dungsaga@users.noreply.github.com>
Date: Wed Nov 24 11:18:07 2021 +0000
patch 8.2.3658: duplicate code in xxd
Problem: Duplicate code in xxd.
Solution: Merge duplicated code. Add more tests. (closes https://github.com/vim/vim/issues/9192)
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Wed, 24 Nov 2021 12:30:04 +0100 |
parents | d757c9c87a58 |
children | 3061c07855ce |
rev | line source |
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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 |
7 | 57 * |
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58 * (c) 1990-1998 by Juergen Weigert (jnweiger@gmail.com) |
7 | 59 * |
6973 | 60 * I hereby grant permission to distribute and use xxd |
61 * under X11-MIT or GPL-2.0 (at the user's choice). | |
62 * | |
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63 * Contributions by Bram Moolenaar et al. |
7 | 64 */ |
714 | 65 |
66 /* Visual Studio 2005 has 'deprecated' many of the standard CRT functions */ | |
67 #if _MSC_VER >= 1400 | |
68 # define _CRT_SECURE_NO_DEPRECATE | |
69 # define _CRT_NONSTDC_NO_DEPRECATE | |
70 #endif | |
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71 #if !defined(CYGWIN) && defined(__CYGWIN__) |
1912 | 72 # define CYGWIN |
73 #endif | |
714 | 74 |
7 | 75 #include <stdio.h> |
76 #ifdef VAXC | |
77 # include <file.h> | |
78 #else | |
79 # include <fcntl.h> | |
80 #endif | |
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81 #if defined(WIN32) || defined(CYGWIN) |
7 | 82 # include <io.h> /* for setmode() */ |
83 #else | |
84 # ifdef UNIX | |
85 # include <unistd.h> | |
86 # endif | |
87 #endif | |
88 #include <stdlib.h> | |
89 #include <string.h> /* for strncmp() */ | |
90 #include <ctype.h> /* for isalnum() */ | |
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91 #include <limits.h> |
7 | 92 #if __MWERKS__ && !defined(BEBOX) |
93 # include <unix.h> /* for fdopen() on MAC */ | |
94 #endif | |
95 | |
96 | |
97 /* This corrects the problem of missing prototypes for certain functions | |
98 * in some GNU installations (e.g. SunOS 4.1.x). | |
99 * Darren Hiebert <darren@hmi.com> (sparc-sun-sunos4.1.3_U1/2.7.2.2) | |
100 */ | |
101 #if defined(__GNUC__) && defined(__STDC__) | |
102 # ifndef __USE_FIXED_PROTOTYPES__ | |
103 # define __USE_FIXED_PROTOTYPES__ | |
104 # endif | |
105 #endif | |
106 | |
107 #ifndef __USE_FIXED_PROTOTYPES__ | |
108 /* | |
109 * This is historic and works only if the compiler really has no prototypes: | |
110 * | |
111 * Include prototypes for Sun OS 4.x, when using an ANSI compiler. | |
112 * FILE is defined on OS 4.x, not on 5.x (Solaris). | |
113 * if __SVR4 is defined (some Solaris versions), don't include this. | |
114 */ | |
115 #if defined(sun) && defined(FILE) && !defined(__SVR4) && defined(__STDC__) | |
116 # define __P(a) a | |
117 /* excerpt from my sun_stdlib.h */ | |
118 extern int fprintf __P((FILE *, char *, ...)); | |
119 extern int fputs __P((char *, FILE *)); | |
120 extern int _flsbuf __P((unsigned char, FILE *)); | |
121 extern int _filbuf __P((FILE *)); | |
122 extern int fflush __P((FILE *)); | |
123 extern int fclose __P((FILE *)); | |
124 extern int fseek __P((FILE *, long, int)); | |
125 extern int rewind __P((FILE *)); | |
126 | |
127 extern void perror __P((char *)); | |
128 # endif | |
129 #endif | |
130 | |
131 extern long int strtol(); | |
132 extern long int ftell(); | |
133 | |
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134 char version[] = "xxd 2021-10-22 by Juergen Weigert et al."; |
7 | 135 #ifdef WIN32 |
136 char osver[] = " (Win32)"; | |
137 #else | |
138 char osver[] = ""; | |
139 #endif | |
140 | |
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141 #if defined(WIN32) |
7 | 142 # define BIN_READ(yes) ((yes) ? "rb" : "rt") |
143 # define BIN_WRITE(yes) ((yes) ? "wb" : "wt") | |
144 # define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT) | |
145 # define BIN_ASSIGN(fp, yes) setmode(fileno(fp), (yes) ? O_BINARY : O_TEXT) | |
602 | 146 # define PATH_SEP '\\' |
147 #elif defined(CYGWIN) | |
148 # define BIN_READ(yes) ((yes) ? "rb" : "rt") | |
149 # define BIN_WRITE(yes) ((yes) ? "wb" : "w") | |
150 # define BIN_CREAT(yes) ((yes) ? (O_CREAT|O_BINARY) : O_CREAT) | |
151 # define BIN_ASSIGN(fp, yes) ((yes) ? (void) setmode(fileno(fp), O_BINARY) : (void) (fp)) | |
152 # define PATH_SEP '/' | |
7 | 153 #else |
154 # ifdef VMS | |
155 # define BIN_READ(dummy) "r" | |
156 # define BIN_WRITE(dummy) "w" | |
157 # define BIN_CREAT(dummy) O_CREAT | |
158 # define BIN_ASSIGN(fp, dummy) fp | |
159 # define PATH_SEP ']' | |
160 # define FILE_SEP '.' | |
161 # else | |
162 # define BIN_READ(dummy) "r" | |
163 # define BIN_WRITE(dummy) "w" | |
164 # define BIN_CREAT(dummy) O_CREAT | |
165 # define BIN_ASSIGN(fp, dummy) fp | |
166 # define PATH_SEP '/' | |
167 # endif | |
168 #endif | |
169 | |
170 /* open has only to arguments on the Mac */ | |
171 #if __MWERKS__ | |
172 # define OPEN(name, mode, umask) open(name, mode) | |
173 #else | |
174 # define OPEN(name, mode, umask) open(name, mode, umask) | |
175 #endif | |
176 | |
177 #ifdef AMIGA | |
178 # define STRNCMP(s1, s2, l) strncmp(s1, s2, (size_t)l) | |
179 #else | |
180 # define STRNCMP(s1, s2, l) strncmp(s1, s2, l) | |
181 #endif | |
182 | |
183 #ifndef __P | |
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184 # if defined(__STDC__) || defined(WIN32) |
7 | 185 # define __P(a) a |
186 # else | |
187 # define __P(a) () | |
188 # endif | |
189 #endif | |
190 | |
191 #define TRY_SEEK /* attempt to use lseek, or skip forward by reading */ | |
192 #define COLS 256 /* change here, if you ever need more columns */ | |
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193 #define LLEN ((2*(int)sizeof(unsigned long)) + 4 + (9*COLS-1) + COLS + 2) |
7 | 194 |
195 char hexxa[] = "0123456789abcdef0123456789ABCDEF", *hexx = hexxa; | |
196 | |
197 /* the different hextypes known by this program: */ | |
198 #define HEX_NORMAL 0 | |
199 #define HEX_POSTSCRIPT 1 | |
200 #define HEX_CINCLUDE 2 | |
201 #define HEX_BITS 3 /* not hex a dump, but bits: 01111001 */ | |
6655 | 202 #define HEX_LITTLEENDIAN 4 |
7 | 203 |
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204 #define CONDITIONAL_CAPITALIZE(c) (capitalize ? toupper((int)c) : c) |
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205 |
2752 | 206 static char *pname; |
207 | |
208 static void | |
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209 exit_with_usage(void) |
7 | 210 { |
211 fprintf(stderr, "Usage:\n %s [options] [infile [outfile]]\n", pname); | |
212 fprintf(stderr, " or\n %s -r [-s [-]offset] [-c cols] [-ps] [infile [outfile]]\n", pname); | |
213 fprintf(stderr, "Options:\n"); | |
214 fprintf(stderr, " -a toggle autoskip: A single '*' replaces nul-lines. Default off.\n"); | |
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215 fprintf(stderr, " -b binary digit dump (incompatible with -ps,-i,-r). Default hex.\n"); |
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216 fprintf(stderr, " -C capitalize variable names in C include file style (-i).\n"); |
7 | 217 fprintf(stderr, " -c cols format <cols> octets per line. Default 16 (-i: 12, -ps: 30).\n"); |
218 fprintf(stderr, " -E show characters in EBCDIC. Default ASCII.\n"); | |
6655 | 219 fprintf(stderr, " -e little-endian dump (incompatible with -ps,-i,-r).\n"); |
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220 fprintf(stderr, " -g bytes number of octets per group in normal output. Default 2 (-e: 4).\n"); |
7 | 221 fprintf(stderr, " -h print this summary.\n"); |
222 fprintf(stderr, " -i output in C include file style.\n"); | |
223 fprintf(stderr, " -l len stop after <len> octets.\n"); | |
6655 | 224 fprintf(stderr, " -o off add <off> to the displayed file position.\n"); |
7 | 225 fprintf(stderr, " -ps output in postscript plain hexdump style.\n"); |
226 fprintf(stderr, " -r reverse operation: convert (or patch) hexdump into binary.\n"); | |
227 fprintf(stderr, " -r -s off revert with <off> added to file positions found in hexdump.\n"); | |
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228 fprintf(stderr, " -d show offset in decimal instead of hex.\n"); |
7 | 229 fprintf(stderr, " -s %sseek start at <seek> bytes abs. %sinfile offset.\n", |
230 #ifdef TRY_SEEK | |
231 "[+][-]", "(or +: rel.) "); | |
232 #else | |
233 "", ""); | |
234 #endif | |
235 fprintf(stderr, " -u use upper case hex letters.\n"); | |
236 fprintf(stderr, " -v show version: \"%s%s\".\n", version, osver); | |
237 exit(1); | |
238 } | |
239 | |
2752 | 240 static void |
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241 perror_exit(int ret) |
2752 | 242 { |
243 fprintf(stderr, "%s: ", pname); | |
244 perror(NULL); | |
245 exit(ret); | |
246 } | |
247 | |
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248 static void |
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249 error_exit(int ret, char *msg) |
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250 { |
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251 fprintf(stderr, "%s: %s\n", pname, msg); |
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252 exit(ret); |
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253 } |
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254 |
7 | 255 /* |
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256 * If "c" is a hex digit, return the value. |
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257 * Otherwise return -1. |
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258 */ |
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259 static int |
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260 parse_hex_digit(int c) |
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261 { |
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262 return (c >= '0' && c <= '9') ? c - '0' |
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263 : (c >= 'a' && c <= 'f') ? c - 'a' + 10 |
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264 : (c >= 'A' && c <= 'F') ? c - 'A' + 10 |
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265 : -1; |
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266 } |
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267 |
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268 /* |
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269 * Ignore text on "fpi" until end-of-line or end-of-file. |
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270 * Return the '\n' or EOF character. |
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271 * When an error is encountered exit with an error message. |
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272 */ |
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273 static int |
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274 skip_to_eol(FILE *fpi, int c) |
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275 { |
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276 while (c != '\n' && c != EOF) |
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277 c = getc(fpi); |
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278 if (c == EOF && ferror(fpi)) |
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279 perror_exit(2); |
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280 return c; |
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281 } |
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282 |
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283 /* |
7 | 284 * Max. cols binary characters are decoded from the input stream per line. |
285 * Two adjacent garbage characters after evaluated data delimit valid data. | |
286 * Everything up to the next newline is discarded. | |
287 * | |
288 * The name is historic and came from 'undo type opt h'. | |
289 */ | |
2752 | 290 static int |
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291 huntype( |
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292 FILE *fpi, |
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293 FILE *fpo, |
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294 int cols, |
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295 int hextype, |
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296 long base_off) |
7 | 297 { |
298 int c, ign_garb = 1, n1 = -1, n2 = 0, n3, p = cols; | |
299 long have_off = 0, want_off = 0; | |
300 | |
301 rewind(fpi); | |
302 | |
303 while ((c = getc(fpi)) != EOF) | |
304 { | |
305 if (c == '\r') /* Doze style input file? */ | |
306 continue; | |
307 | |
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308 /* Allow multiple spaces. This doesn't work when there is normal text |
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309 * after the hex codes in the last line that looks like hex, thus only |
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310 * use it for PostScript format. */ |
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311 if (hextype == HEX_POSTSCRIPT && (c == ' ' || c == '\n' || c == '\t')) |
856 | 312 continue; |
809 | 313 |
7 | 314 n3 = n2; |
315 n2 = n1; | |
316 | |
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317 n1 = parse_hex_digit(c); |
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318 if (n1 == -1 && ign_garb) |
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319 continue; |
7 | 320 |
321 ign_garb = 0; | |
322 | |
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323 if (!hextype && (p >= cols)) |
7 | 324 { |
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325 if (n1 < 0) |
7 | 326 { |
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327 p = 0; |
7 | 328 continue; |
329 } | |
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330 want_off = (want_off << 4) | n1; |
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331 continue; |
7 | 332 } |
333 | |
334 if (base_off + want_off != have_off) | |
335 { | |
2752 | 336 if (fflush(fpo) != 0) |
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337 perror_exit(3); |
7 | 338 #ifdef TRY_SEEK |
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339 if (fseek(fpo, base_off + want_off - have_off, SEEK_CUR) >= 0) |
7 | 340 have_off = base_off + want_off; |
341 #endif | |
342 if (base_off + want_off < have_off) | |
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343 error_exit(5, "sorry, cannot seek backwards."); |
7 | 344 for (; have_off < base_off + want_off; have_off++) |
2752 | 345 if (putc(0, fpo) == EOF) |
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346 perror_exit(3); |
7 | 347 } |
348 | |
349 if (n2 >= 0 && n1 >= 0) | |
350 { | |
2752 | 351 if (putc((n2 << 4) | n1, fpo) == EOF) |
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352 perror_exit(3); |
7 | 353 have_off++; |
354 want_off++; | |
355 n1 = -1; | |
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356 if (!hextype && (++p >= cols)) |
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357 /* skip the rest of the line as garbage */ |
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358 c = skip_to_eol(fpi, c); |
7 | 359 } |
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360 else if (n1 < 0 && n2 < 0 && n3 < 0) |
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361 /* already stumbled into garbage, skip line, wait and see */ |
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362 c = skip_to_eol(fpi, c); |
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363 |
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364 if (c == '\n') |
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365 { |
7 | 366 if (!hextype) |
367 want_off = 0; | |
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368 p = cols; |
7 | 369 ign_garb = 1; |
370 } | |
371 } | |
2752 | 372 if (fflush(fpo) != 0) |
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373 perror_exit(3); |
7 | 374 #ifdef TRY_SEEK |
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375 fseek(fpo, 0L, SEEK_END); |
7 | 376 #endif |
2752 | 377 if (fclose(fpo) != 0) |
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378 perror_exit(3); |
2752 | 379 if (fclose(fpi) != 0) |
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380 perror_exit(2); |
7 | 381 return 0; |
382 } | |
383 | |
384 /* | |
385 * Print line l. If nz is false, xxdline regards the line a line of | |
386 * zeroes. If there are three or more consecutive lines of zeroes, | |
387 * they are replaced by a single '*' character. | |
388 * | |
389 * If the output ends with more than two lines of zeroes, you | |
390 * should call xxdline again with l being the last line and nz | |
391 * negative. This ensures that the last line is shown even when | |
392 * it is all zeroes. | |
393 * | |
394 * If nz is always positive, lines are never suppressed. | |
395 */ | |
2752 | 396 static void |
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397 xxdline(FILE *fp, char *l, int nz) |
7 | 398 { |
399 static char z[LLEN+1]; | |
400 static int zero_seen = 0; | |
401 | |
402 if (!nz && zero_seen == 1) | |
403 strcpy(z, l); | |
404 | |
405 if (nz || !zero_seen++) | |
406 { | |
407 if (nz) | |
408 { | |
409 if (nz < 0) | |
410 zero_seen--; | |
411 if (zero_seen == 2) | |
2752 | 412 if (fputs(z, fp) == EOF) |
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413 perror_exit(3); |
7 | 414 if (zero_seen > 2) |
2752 | 415 if (fputs("*\n", fp) == EOF) |
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416 perror_exit(3); |
7 | 417 } |
418 if (nz >= 0 || zero_seen > 0) | |
2752 | 419 if (fputs(l, fp) == EOF) |
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420 perror_exit(3); |
7 | 421 if (nz) |
422 zero_seen = 0; | |
423 } | |
424 } | |
425 | |
426 /* This is an EBCDIC to ASCII conversion table */ | |
427 /* from a proposed BTL standard April 16, 1979 */ | |
428 static unsigned char etoa64[] = | |
429 { | |
430 0040,0240,0241,0242,0243,0244,0245,0246, | |
431 0247,0250,0325,0056,0074,0050,0053,0174, | |
432 0046,0251,0252,0253,0254,0255,0256,0257, | |
433 0260,0261,0041,0044,0052,0051,0073,0176, | |
434 0055,0057,0262,0263,0264,0265,0266,0267, | |
435 0270,0271,0313,0054,0045,0137,0076,0077, | |
436 0272,0273,0274,0275,0276,0277,0300,0301, | |
437 0302,0140,0072,0043,0100,0047,0075,0042, | |
438 0303,0141,0142,0143,0144,0145,0146,0147, | |
439 0150,0151,0304,0305,0306,0307,0310,0311, | |
440 0312,0152,0153,0154,0155,0156,0157,0160, | |
441 0161,0162,0136,0314,0315,0316,0317,0320, | |
442 0321,0345,0163,0164,0165,0166,0167,0170, | |
443 0171,0172,0322,0323,0324,0133,0326,0327, | |
444 0330,0331,0332,0333,0334,0335,0336,0337, | |
445 0340,0341,0342,0343,0344,0135,0346,0347, | |
446 0173,0101,0102,0103,0104,0105,0106,0107, | |
447 0110,0111,0350,0351,0352,0353,0354,0355, | |
448 0175,0112,0113,0114,0115,0116,0117,0120, | |
449 0121,0122,0356,0357,0360,0361,0362,0363, | |
450 0134,0237,0123,0124,0125,0126,0127,0130, | |
451 0131,0132,0364,0365,0366,0367,0370,0371, | |
452 0060,0061,0062,0063,0064,0065,0066,0067, | |
453 0070,0071,0372,0373,0374,0375,0376,0377 | |
454 }; | |
455 | |
2752 | 456 int |
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457 main(int argc, char *argv[]) |
7 | 458 { |
459 FILE *fp, *fpo; | |
460 int c, e, p = 0, relseek = 1, negseek = 0, revert = 0; | |
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461 int cols = 0, nonzero = 0, autoskip = 0, hextype = HEX_NORMAL; |
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462 int capitalize = 0, decimal_offset = 0; |
7 | 463 int ebcdic = 0; |
464 int octspergrp = -1; /* number of octets grouped in output */ | |
465 int grplen; /* total chars per octet group */ | |
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466 long length = -1, n = 0, seekoff = 0; |
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467 unsigned long displayoff = 0; |
2770 | 468 static char l[LLEN+1]; /* static because it may be too big for stack */ |
2752 | 469 char *pp; |
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470 int addrlen = 9; |
7 | 471 |
472 #ifdef AMIGA | |
473 /* This program doesn't work when started from the Workbench */ | |
474 if (argc == 0) | |
475 exit(1); | |
476 #endif | |
477 | |
478 pname = argv[0]; | |
479 for (pp = pname; *pp; ) | |
480 if (*pp++ == PATH_SEP) | |
481 pname = pp; | |
482 #ifdef FILE_SEP | |
483 for (pp = pname; *pp; pp++) | |
484 if (*pp == FILE_SEP) | |
485 { | |
486 *pp = '\0'; | |
487 break; | |
488 } | |
489 #endif | |
490 | |
491 while (argc >= 2) | |
492 { | |
493 pp = argv[1] + (!STRNCMP(argv[1], "--", 2) && argv[1][2]); | |
494 if (!STRNCMP(pp, "-a", 2)) autoskip = 1 - autoskip; | |
495 else if (!STRNCMP(pp, "-b", 2)) hextype = HEX_BITS; | |
6655 | 496 else if (!STRNCMP(pp, "-e", 2)) hextype = HEX_LITTLEENDIAN; |
7 | 497 else if (!STRNCMP(pp, "-u", 2)) hexx = hexxa + 16; |
498 else if (!STRNCMP(pp, "-p", 2)) hextype = HEX_POSTSCRIPT; | |
499 else if (!STRNCMP(pp, "-i", 2)) hextype = HEX_CINCLUDE; | |
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500 else if (!STRNCMP(pp, "-C", 2)) capitalize = 1; |
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501 else if (!STRNCMP(pp, "-d", 2)) decimal_offset = 1; |
7 | 502 else if (!STRNCMP(pp, "-r", 2)) revert++; |
503 else if (!STRNCMP(pp, "-E", 2)) ebcdic++; | |
504 else if (!STRNCMP(pp, "-v", 2)) | |
505 { | |
506 fprintf(stderr, "%s%s\n", version, osver); | |
507 exit(0); | |
508 } | |
509 else if (!STRNCMP(pp, "-c", 2)) | |
510 { | |
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511 if (pp[2] && !STRNCMP("apitalize", pp + 2, 9)) |
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512 capitalize = 1; |
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513 else if (pp[2] && STRNCMP("ols", pp + 2, 3)) |
7 | 514 cols = (int)strtol(pp + 2, NULL, 0); |
515 else | |
516 { | |
517 if (!argv[2]) | |
2752 | 518 exit_with_usage(); |
7 | 519 cols = (int)strtol(argv[2], NULL, 0); |
520 argv++; | |
521 argc--; | |
522 } | |
523 } | |
524 else if (!STRNCMP(pp, "-g", 2)) | |
525 { | |
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526 if (pp[2] && STRNCMP("roup", pp + 2, 4)) |
7 | 527 octspergrp = (int)strtol(pp + 2, NULL, 0); |
528 else | |
529 { | |
530 if (!argv[2]) | |
2752 | 531 exit_with_usage(); |
7 | 532 octspergrp = (int)strtol(argv[2], NULL, 0); |
533 argv++; | |
534 argc--; | |
535 } | |
536 } | |
6655 | 537 else if (!STRNCMP(pp, "-o", 2)) |
538 { | |
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539 int reloffset = 0; |
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540 int negoffset = 0; |
6655 | 541 if (pp[2] && STRNCMP("ffset", pp + 2, 5)) |
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542 displayoff = strtoul(pp + 2, NULL, 0); |
6655 | 543 else |
544 { | |
545 if (!argv[2]) | |
546 exit_with_usage(); | |
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547 |
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548 if (argv[2][0] == '+') |
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549 reloffset++; |
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550 if (argv[2][reloffset] == '-') |
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551 negoffset++; |
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552 |
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553 if (negoffset) |
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554 displayoff = ULONG_MAX - strtoul(argv[2] + reloffset+negoffset, NULL, 0) + 1; |
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555 else |
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556 displayoff = strtoul(argv[2] + reloffset+negoffset, NULL, 0); |
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557 |
6655 | 558 argv++; |
559 argc--; | |
560 } | |
561 } | |
7 | 562 else if (!STRNCMP(pp, "-s", 2)) |
563 { | |
564 relseek = 0; | |
565 negseek = 0; | |
566 if (pp[2] && STRNCMP("kip", pp+2, 3) && STRNCMP("eek", pp+2, 3)) | |
567 { | |
568 #ifdef TRY_SEEK | |
569 if (pp[2] == '+') | |
570 relseek++; | |
571 if (pp[2+relseek] == '-') | |
572 negseek++; | |
573 #endif | |
574 seekoff = strtol(pp + 2+relseek+negseek, (char **)NULL, 0); | |
575 } | |
576 else | |
577 { | |
578 if (!argv[2]) | |
2752 | 579 exit_with_usage(); |
7 | 580 #ifdef TRY_SEEK |
581 if (argv[2][0] == '+') | |
582 relseek++; | |
583 if (argv[2][relseek] == '-') | |
584 negseek++; | |
585 #endif | |
586 seekoff = strtol(argv[2] + relseek+negseek, (char **)NULL, 0); | |
587 argv++; | |
588 argc--; | |
589 } | |
590 } | |
591 else if (!STRNCMP(pp, "-l", 2)) | |
592 { | |
593 if (pp[2] && STRNCMP("en", pp + 2, 2)) | |
594 length = strtol(pp + 2, (char **)NULL, 0); | |
595 else | |
596 { | |
597 if (!argv[2]) | |
2752 | 598 exit_with_usage(); |
7 | 599 length = strtol(argv[2], (char **)NULL, 0); |
600 argv++; | |
601 argc--; | |
602 } | |
603 } | |
604 else if (!strcmp(pp, "--")) /* end of options */ | |
605 { | |
606 argv++; | |
607 argc--; | |
608 break; | |
609 } | |
610 else if (pp[0] == '-' && pp[1]) /* unknown option */ | |
2752 | 611 exit_with_usage(); |
7 | 612 else |
613 break; /* not an option */ | |
614 | |
615 argv++; /* advance to next argument */ | |
616 argc--; | |
617 } | |
618 | |
619 if (!cols) | |
620 switch (hextype) | |
621 { | |
622 case HEX_POSTSCRIPT: cols = 30; break; | |
623 case HEX_CINCLUDE: cols = 12; break; | |
624 case HEX_BITS: cols = 6; break; | |
625 case HEX_NORMAL: | |
6655 | 626 case HEX_LITTLEENDIAN: |
7 | 627 default: cols = 16; break; |
628 } | |
629 | |
630 if (octspergrp < 0) | |
631 switch (hextype) | |
632 { | |
633 case HEX_BITS: octspergrp = 1; break; | |
634 case HEX_NORMAL: octspergrp = 2; break; | |
6655 | 635 case HEX_LITTLEENDIAN: octspergrp = 4; break; |
7 | 636 case HEX_POSTSCRIPT: |
637 case HEX_CINCLUDE: | |
638 default: octspergrp = 0; break; | |
639 } | |
640 | |
6655 | 641 if (cols < 1 || ((hextype == HEX_NORMAL || hextype == HEX_BITS || hextype == HEX_LITTLEENDIAN) |
1452 | 642 && (cols > COLS))) |
7 | 643 { |
644 fprintf(stderr, "%s: invalid number of columns (max. %d).\n", pname, COLS); | |
645 exit(1); | |
646 } | |
647 | |
6655 | 648 if (octspergrp < 1 || octspergrp > cols) |
7 | 649 octspergrp = cols; |
6655 | 650 else if (hextype == HEX_LITTLEENDIAN && (octspergrp & (octspergrp-1))) |
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651 error_exit(1, "number of octets per group must be a power of 2 with -e."); |
7 | 652 |
653 if (argc > 3) | |
2752 | 654 exit_with_usage(); |
7 | 655 |
656 if (argc == 1 || (argv[1][0] == '-' && !argv[1][1])) | |
657 BIN_ASSIGN(fp = stdin, !revert); | |
658 else | |
659 { | |
660 if ((fp = fopen(argv[1], BIN_READ(!revert))) == NULL) | |
661 { | |
662 fprintf(stderr,"%s: ", pname); | |
663 perror(argv[1]); | |
664 return 2; | |
665 } | |
666 } | |
667 | |
668 if (argc < 3 || (argv[2][0] == '-' && !argv[2][1])) | |
669 BIN_ASSIGN(fpo = stdout, revert); | |
670 else | |
671 { | |
672 int fd; | |
673 int mode = revert ? O_WRONLY : (O_TRUNC|O_WRONLY); | |
674 | |
675 if (((fd = OPEN(argv[2], mode | BIN_CREAT(revert), 0666)) < 0) || | |
676 (fpo = fdopen(fd, BIN_WRITE(revert))) == NULL) | |
677 { | |
678 fprintf(stderr, "%s: ", pname); | |
679 perror(argv[2]); | |
680 return 3; | |
681 } | |
682 rewind(fpo); | |
683 } | |
684 | |
685 if (revert) | |
686 { | |
687 if (hextype && (hextype != HEX_POSTSCRIPT)) | |
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688 error_exit(-1, "sorry, cannot revert this type of hexdump"); |
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689 return huntype(fp, fpo, cols, hextype, |
7 | 690 negseek ? -seekoff : seekoff); |
691 } | |
692 | |
693 if (seekoff || negseek || !relseek) | |
694 { | |
695 #ifdef TRY_SEEK | |
696 if (relseek) | |
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697 e = fseek(fp, negseek ? -seekoff : seekoff, SEEK_CUR); |
7 | 698 else |
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699 e = fseek(fp, negseek ? -seekoff : seekoff, |
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700 negseek ? SEEK_END : SEEK_SET); |
7 | 701 if (e < 0 && negseek) |
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702 error_exit(4, "sorry cannot seek."); |
7 | 703 if (e >= 0) |
704 seekoff = ftell(fp); | |
705 else | |
706 #endif | |
707 { | |
708 long s = seekoff; | |
709 | |
710 while (s--) | |
2752 | 711 if (getc(fp) == EOF) |
2754 | 712 { |
2752 | 713 if (ferror(fp)) |
714 { | |
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715 perror_exit(2); |
2752 | 716 } |
717 else | |
718 { | |
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719 error_exit(4, "sorry cannot seek."); |
2752 | 720 } |
2754 | 721 } |
7 | 722 } |
723 } | |
724 | |
725 if (hextype == HEX_CINCLUDE) | |
726 { | |
727 if (fp != stdin) | |
728 { | |
2752 | 729 if (fprintf(fpo, "unsigned char %s", isdigit((int)argv[1][0]) ? "__" : "") < 0) |
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730 perror_exit(3); |
7 | 731 for (e = 0; (c = argv[1][e]) != 0; e++) |
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732 if (putc(isalnum(c) ? CONDITIONAL_CAPITALIZE(c) : '_', fpo) == EOF) |
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733 perror_exit(3); |
2752 | 734 if (fputs("[] = {\n", fpo) == EOF) |
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735 perror_exit(3); |
7 | 736 } |
737 | |
738 p = 0; | |
2752 | 739 c = 0; |
7 | 740 while ((length < 0 || p < length) && (c = getc(fp)) != EOF) |
741 { | |
2752 | 742 if (fprintf(fpo, (hexx == hexxa) ? "%s0x%02x" : "%s0X%02X", |
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743 (p % cols) ? ", " : &",\n "[2*!p], c) < 0) |
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744 perror_exit(3); |
7 | 745 p++; |
746 } | |
2752 | 747 if (c == EOF && ferror(fp)) |
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748 perror_exit(2); |
7 | 749 |
4166 | 750 if (p && fputs("\n", fpo) == EOF) |
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751 perror_exit(3); |
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752 if (fputs(&"};\n"[3 * (fp == stdin)], fpo) == EOF) |
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753 perror_exit(3); |
7 | 754 |
755 if (fp != stdin) | |
756 { | |
2752 | 757 if (fprintf(fpo, "unsigned int %s", isdigit((int)argv[1][0]) ? "__" : "") < 0) |
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758 perror_exit(3); |
7 | 759 for (e = 0; (c = argv[1][e]) != 0; e++) |
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760 if (putc(isalnum(c) ? CONDITIONAL_CAPITALIZE(c) : '_', fpo) == EOF) |
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761 perror_exit(3); |
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762 if (fprintf(fpo, "_%s = %d;\n", capitalize ? "LEN" : "len", p) < 0) |
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763 perror_exit(3); |
7 | 764 } |
765 | |
2752 | 766 if (fclose(fp)) |
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767 perror_exit(2); |
2752 | 768 if (fclose(fpo)) |
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769 perror_exit(3); |
7 | 770 return 0; |
771 } | |
772 | |
773 if (hextype == HEX_POSTSCRIPT) | |
774 { | |
775 p = cols; | |
2752 | 776 e = 0; |
7 | 777 while ((length < 0 || n < length) && (e = getc(fp)) != EOF) |
778 { | |
2752 | 779 if (putc(hexx[(e >> 4) & 0xf], fpo) == EOF |
780 || putc(hexx[e & 0xf], fpo) == EOF) | |
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781 perror_exit(3); |
7 | 782 n++; |
783 if (!--p) | |
784 { | |
2752 | 785 if (putc('\n', fpo) == EOF) |
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786 perror_exit(3); |
7 | 787 p = cols; |
788 } | |
789 } | |
2752 | 790 if (e == EOF && ferror(fp)) |
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791 perror_exit(2); |
7 | 792 if (p < cols) |
2752 | 793 if (putc('\n', fpo) == EOF) |
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794 perror_exit(3); |
2752 | 795 if (fclose(fp)) |
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796 perror_exit(2); |
2752 | 797 if (fclose(fpo)) |
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798 perror_exit(3); |
7 | 799 return 0; |
800 } | |
801 | |
6655 | 802 /* hextype: HEX_NORMAL or HEX_BITS or HEX_LITTLEENDIAN */ |
7 | 803 |
6655 | 804 if (hextype != HEX_BITS) |
7 | 805 grplen = octspergrp + octspergrp + 1; /* chars per octet group */ |
806 else /* hextype == HEX_BITS */ | |
807 grplen = 8 * octspergrp + 1; | |
808 | |
2752 | 809 e = 0; |
7 | 810 while ((length < 0 || n < length) && (e = getc(fp)) != EOF) |
811 { | |
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812 int x; |
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813 |
7 | 814 if (p == 0) |
815 { | |
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816 addrlen = sprintf(l, decimal_offset ? "%08ld:" : "%08lx:", |
20601
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817 ((unsigned long)(n + seekoff + displayoff))); |
15693
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818 for (c = addrlen; c < LLEN; l[c++] = ' '); |
7 | 819 } |
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820 x = hextype == HEX_LITTLEENDIAN ? p ^ (octspergrp-1) : p; |
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821 c = addrlen + 1 + (grplen * x) / octspergrp; |
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822 if (hextype == HEX_NORMAL || hextype == HEX_LITTLEENDIAN) |
7 | 823 { |
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824 l[c] = hexx[(e >> 4) & 0xf]; |
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825 l[++c] = hexx[e & 0xf]; |
7 | 826 } |
827 else /* hextype == HEX_BITS */ | |
828 { | |
829 int i; | |
830 for (i = 7; i >= 0; i--) | |
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831 l[c++] = (e & (1 << i)) ? '1' : '0'; |
7 | 832 } |
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833 if (e) |
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834 nonzero++; |
7 | 835 if (ebcdic) |
836 e = (e < 64) ? '.' : etoa64[e-64]; | |
1452 | 837 /* When changing this update definition of LLEN above. */ |
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838 c = addrlen + 3 + (grplen * cols - 1)/octspergrp + p; |
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839 l[c++] = |
7 | 840 #ifdef __MVS__ |
841 (e >= 64) | |
842 #else | |
843 (e > 31 && e < 127) | |
844 #endif | |
845 ? e : '.'; | |
846 n++; | |
847 if (++p == cols) | |
848 { | |
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849 l[c] = '\n'; |
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850 l[++c] = '\0'; |
7 | 851 xxdline(fpo, l, autoskip ? nonzero : 1); |
852 nonzero = 0; | |
853 p = 0; | |
854 } | |
855 } | |
2752 | 856 if (e == EOF && ferror(fp)) |
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857 perror_exit(2); |
7 | 858 if (p) |
859 { | |
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860 l[c] = '\n'; |
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861 l[++c] = '\0'; |
7 | 862 xxdline(fpo, l, 1); |
863 } | |
864 else if (autoskip) | |
1197 | 865 xxdline(fpo, l, -1); /* last chance to flush out suppressed lines */ |
7 | 866 |
2752 | 867 if (fclose(fp)) |
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868 perror_exit(2); |
2752 | 869 if (fclose(fpo)) |
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changeset
|
870 perror_exit(3); |
7 | 871 return 0; |
872 } | |
2752 | 873 |
874 /* vi:set ts=8 sw=4 sts=2 cino+={2 cino+=n-2 : */ |