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comparison lib-src/hexl.c @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
parents
children 972bbb6d6ca2
comparison
equal deleted inserted replaced
-1:000000000000 0:376386a54a3c
1 /* Synched up with: FSF 19.28. */
2
3 #include <../src/config.h>
4
5 #include <stdio.h>
6 #include <ctype.h>
7 #ifdef MSDOS
8 #include <fcntl.h>
9 #endif
10
11 #if __STDC__ || defined(STDC_HEADERS)
12 #include <stdlib.h>
13 #include <unistd.h>
14 #include <string.h>
15 #endif
16
17 #define DEFAULT_GROUPING 0x01
18 #define DEFAULT_BASE 16
19
20 #undef TRUE
21 #undef FALSE
22 #define TRUE (1)
23 #define FALSE (0)
24
25 int base = DEFAULT_BASE, un_flag = FALSE, iso_flag = FALSE, endian = 1;
26 int group_by = DEFAULT_GROUPING;
27 char *progname;
28
29 void usage (void);
30
31 int
32 main(argc, argv)
33 int argc;
34 char *argv[];
35 {
36 register long address;
37 char string[18];
38 FILE *fp;
39
40 progname = *argv++; --argc;
41
42 /*
43 ** -hex hex dump
44 ** -oct Octal dump
45 ** -group-by-8-bits
46 ** -group-by-16-bits
47 ** -group-by-32-bits
48 ** -group-by-64-bits
49 ** -iso iso character set.
50 ** -big-endian Big Endian
51 ** -little-endian Little Endian
52 ** -un || -de from hexl format to binary.
53 ** -- End switch list.
54 ** <filename> dump filename
55 ** - (as filename == stdin)
56 */
57
58 while (*argv && *argv[0] == '-' && (*argv)[1])
59 {
60 /* A switch! */
61 if (!strcmp (*argv, "--"))
62 {
63 --argc; argv++;
64 break;
65 }
66 else if (!strcmp (*argv, "-un") || !strcmp (*argv, "-de"))
67 {
68 un_flag = TRUE;
69 --argc; argv++;
70 }
71 else if (!strcmp (*argv, "-hex"))
72 {
73 base = 16;
74 --argc; argv++;
75 }
76 else if (!strcmp (*argv, "-iso"))
77 {
78 iso_flag = TRUE;
79 --argc; argv++;
80 }
81 else if (!strcmp (*argv, "-oct"))
82 {
83 base = 8;
84 --argc; argv++;
85 }
86 else if (!strcmp (*argv, "-big-endian"))
87 {
88 endian = 1;
89 --argc; argv++;
90 }
91 else if (!strcmp (*argv, "-little-endian"))
92 {
93 endian = 0;
94 --argc; argv++;
95 }
96 else if (!strcmp (*argv, "-group-by-8-bits"))
97 {
98 group_by = 0x00;
99 --argc; argv++;
100 }
101 else if (!strcmp (*argv, "-group-by-16-bits"))
102 {
103 group_by = 0x01;
104 --argc; argv++;
105 }
106 else if (!strcmp (*argv, "-group-by-32-bits"))
107 {
108 group_by = 0x03;
109 --argc; argv++;
110 }
111 else if (!strcmp (*argv, "-group-by-64-bits"))
112 {
113 group_by = 0x07;
114 endian = 0;
115 --argc; argv++;
116 }
117 else
118 {
119 (void) fprintf (stderr, "%s: invalid switch: \"%s\".\n", progname,
120 *argv);
121 usage ();
122 }
123 }
124
125 do
126 {
127 if (*argv == NULL)
128 fp = stdin;
129 else
130 {
131 char *filename = *argv++;
132
133 if (!strcmp (filename, "-"))
134 fp = stdin;
135 else if ((fp = fopen (filename, "r")) == NULL)
136 {
137 perror (filename);
138 continue;
139 }
140 }
141
142 if (un_flag)
143 {
144 char buf[18];
145
146 #ifdef MSDOS
147 (stdout)->_flag &= ~_IOTEXT; /* print binary */
148 _setmode (fileno (stdout), O_BINARY);
149 #endif
150 for (;;)
151 {
152 register int i, c, d;
153
154 #define hexchar(x) (isdigit (x) ? x - '0' : x - 'a' + 10)
155
156 fread (buf, 1, 10, fp); /* skip 10 bytes */
157
158 for (i=0; i < 16; ++i)
159 {
160 if ((c = getc (fp)) == ' ' || c == EOF)
161 break;
162
163 d = getc (fp);
164 c = hexchar (c) * 0x10 + hexchar (d);
165 putchar (c);
166
167 if ((i&group_by) == group_by)
168 getc (fp);
169 }
170
171 if (c == ' ')
172 {
173 while ((c = getc (fp)) != '\n' && c != EOF)
174 ;
175
176 if (c == EOF)
177 break;
178 }
179 else
180 {
181 if (i < 16)
182 break;
183
184 fread (buf, 1, 18, fp); /* skip 18 bytes */
185 }
186 }
187 }
188 else
189 {
190 #ifdef MSDOS
191 (fp)->_flag &= ~_IOTEXT; /* read binary */
192 _setmode (fileno (fp), O_BINARY);
193 #endif
194 address = 0;
195 string[0] = ' ';
196 string[17] = '\0';
197 for (;;)
198 {
199 register int i, c;
200
201 for (i=0; i < 16; ++i)
202 {
203 if ((c = getc (fp)) == EOF)
204 {
205 if (!i)
206 break;
207
208 fputs (" ", stdout);
209 string[i+1] = '\0';
210 }
211 else
212 {
213 if (!i)
214 (void) printf ("%08lx: ", address);
215
216 if (iso_flag)
217 string[i+1] =
218 (c < 0x20 || (c >= 0x7F && c < 0xa0)) ? '.' :c;
219 else
220 string[i+1] = (c < 0x20 || c >= 0x7F) ? '.' : c;
221
222 (void) printf ("%02x", c);
223 }
224
225 if ((i&group_by) == group_by)
226 putchar (' ');
227 }
228
229 if (i)
230 puts (string);
231
232 if (c == EOF)
233 break;
234
235 address += 0x10;
236
237 }
238 }
239
240 if (fp != stdin)
241 (void) fclose (fp);
242
243 } while (*argv != NULL);
244 return 0;
245 }
246
247 void
248 usage ()
249 {
250 (void) fprintf (stderr, "usage: %s [-de] [-iso]\n", progname);
251 exit (1);
252 }