Annotation of /trunk/mkinitrd-magellan/busybox/coreutils/od.c
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Revision 984 -
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Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
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Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
File MIME type: text/plain
File size: 6042 byte(s)
-updated to busybox-1.16.1 and enabled blkid/uuid support in default config
1 | niro | 532 | /* vi: set sw=4 ts=4: */ |
2 | /* | ||
3 | * od implementation for busybox | ||
4 | * Based on code from util-linux v 2.11l | ||
5 | * | ||
6 | * Copyright (c) 1990 | ||
7 | * The Regents of the University of California. All rights reserved. | ||
8 | * | ||
9 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. | ||
10 | * | ||
11 | * Original copyright notice is retained at the end of this file. | ||
12 | */ | ||
13 | |||
14 | |||
15 | niro | 816 | #include "libbb.h" |
16 | niro | 532 | #if ENABLE_DESKTOP |
17 | /* This one provides -t (busybox's own build script needs it) */ | ||
18 | #include "od_bloaty.c" | ||
19 | #else | ||
20 | |||
21 | #include "dump.h" | ||
22 | |||
23 | static void | ||
24 | niro | 816 | odoffset(dumper_t *dumper, int argc, char ***argvp) |
25 | niro | 532 | { |
26 | char *num, *p; | ||
27 | int base; | ||
28 | char *end; | ||
29 | |||
30 | /* | ||
31 | * The offset syntax of od(1) was genuinely bizarre. First, if | ||
32 | * it started with a plus it had to be an offset. Otherwise, if | ||
33 | * there were at least two arguments, a number or lower-case 'x' | ||
34 | * followed by a number makes it an offset. By default it was | ||
35 | * octal; if it started with 'x' or '0x' it was hex. If it ended | ||
36 | * in a '.', it was decimal. If a 'b' or 'B' was appended, it | ||
37 | * multiplied the number by 512 or 1024 byte units. There was | ||
38 | * no way to assign a block count to a hex offset. | ||
39 | * | ||
40 | * We assumes it's a file if the offset is bad. | ||
41 | */ | ||
42 | p = **argvp; | ||
43 | |||
44 | if (!p) { | ||
45 | /* hey someone is probably piping to us ... */ | ||
46 | return; | ||
47 | } | ||
48 | |||
49 | if ((*p != '+') | ||
50 | && (argc < 2 | ||
51 | niro | 984 | || (!isdigit(p[0]) |
52 | && ((p[0] != 'x') || !isxdigit(p[1]))))) | ||
53 | niro | 532 | return; |
54 | |||
55 | base = 0; | ||
56 | /* | ||
57 | niro | 816 | * skip over leading '+', 'x[0-9a-fA-f]' or '0x', and |
58 | niro | 532 | * set base. |
59 | */ | ||
60 | if (p[0] == '+') | ||
61 | ++p; | ||
62 | niro | 984 | if (p[0] == 'x' && isxdigit(p[1])) { |
63 | niro | 532 | ++p; |
64 | base = 16; | ||
65 | } else if (p[0] == '0' && p[1] == 'x') { | ||
66 | p += 2; | ||
67 | base = 16; | ||
68 | } | ||
69 | |||
70 | niro | 816 | /* skip over the number */ |
71 | niro | 532 | if (base == 16) |
72 | niro | 984 | for (num = p; isxdigit(*p); ++p) |
73 | niro | 816 | continue; |
74 | niro | 532 | else |
75 | niro | 984 | for (num = p; isdigit(*p); ++p) |
76 | niro | 816 | continue; |
77 | niro | 532 | |
78 | /* check for no number */ | ||
79 | if (num == p) | ||
80 | return; | ||
81 | |||
82 | /* if terminates with a '.', base is decimal */ | ||
83 | if (*p == '.') { | ||
84 | if (base) | ||
85 | return; | ||
86 | base = 10; | ||
87 | } | ||
88 | |||
89 | niro | 816 | dumper->dump_skip = strtol(num, &end, base ? base : 8); |
90 | niro | 532 | |
91 | /* if end isn't the same as p, we got a non-octal digit */ | ||
92 | if (end != p) | ||
93 | niro | 816 | dumper->dump_skip = 0; |
94 | niro | 532 | else { |
95 | if (*p) { | ||
96 | if (*p == 'b') { | ||
97 | niro | 816 | dumper->dump_skip *= 512; |
98 | niro | 532 | ++p; |
99 | } else if (*p == 'B') { | ||
100 | niro | 816 | dumper->dump_skip *= 1024; |
101 | niro | 532 | ++p; |
102 | } | ||
103 | } | ||
104 | if (*p) | ||
105 | niro | 816 | dumper->dump_skip = 0; |
106 | niro | 532 | else { |
107 | ++*argvp; | ||
108 | /* | ||
109 | * If the offset uses a non-octal base, the base of | ||
110 | * the offset is changed as well. This isn't pretty, | ||
111 | * but it's easy. | ||
112 | */ | ||
113 | #define TYPE_OFFSET 7 | ||
114 | { | ||
115 | char x_or_d; | ||
116 | if (base == 16) { | ||
117 | x_or_d = 'x'; | ||
118 | goto DO_X_OR_D; | ||
119 | } | ||
120 | if (base == 10) { | ||
121 | x_or_d = 'd'; | ||
122 | niro | 816 | DO_X_OR_D: |
123 | dumper->fshead->nextfu->fmt[TYPE_OFFSET] | ||
124 | = dumper->fshead->nextfs->nextfu->fmt[TYPE_OFFSET] | ||
125 | niro | 532 | = x_or_d; |
126 | } | ||
127 | } | ||
128 | } | ||
129 | } | ||
130 | } | ||
131 | |||
132 | niro | 816 | static const char *const add_strings[] = { |
133 | niro | 532 | "16/1 \"%3_u \" \"\\n\"", /* a */ |
134 | "8/2 \" %06o \" \"\\n\"", /* B, o */ | ||
135 | "16/1 \"%03o \" \"\\n\"", /* b */ | ||
136 | "16/1 \"%3_c \" \"\\n\"", /* c */ | ||
137 | "8/2 \" %05u \" \"\\n\"", /* d */ | ||
138 | "4/4 \" %010u \" \"\\n\"", /* D */ | ||
139 | "2/8 \" %21.14e \" \"\\n\"", /* e (undocumented in od), F */ | ||
140 | "4/4 \" %14.7e \" \"\\n\"", /* f */ | ||
141 | "4/4 \" %08x \" \"\\n\"", /* H, X */ | ||
142 | "8/2 \" %04x \" \"\\n\"", /* h, x */ | ||
143 | "4/4 \" %11d \" \"\\n\"", /* I, L, l */ | ||
144 | "8/2 \" %6d \" \"\\n\"", /* i */ | ||
145 | "4/4 \" %011o \" \"\\n\"", /* O */ | ||
146 | }; | ||
147 | |||
148 | niro | 816 | static const char od_opts[] ALIGN1 = "aBbcDdeFfHhIiLlOoXxv"; |
149 | niro | 532 | |
150 | niro | 816 | static const char od_o2si[] ALIGN1 = { |
151 | niro | 532 | 0, 1, 2, 3, 5, |
152 | 4, 6, 6, 7, 8, | ||
153 | 9, 0xa, 0xb, 0xa, 0xa, | ||
154 | 0xb, 1, 8, 9, | ||
155 | }; | ||
156 | |||
157 | niro | 816 | int od_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
158 | niro | 532 | int od_main(int argc, char **argv) |
159 | { | ||
160 | int ch; | ||
161 | int first = 1; | ||
162 | char *p; | ||
163 | niro | 816 | dumper_t *dumper = alloc_dumper(); |
164 | niro | 532 | |
165 | while ((ch = getopt(argc, argv, od_opts)) > 0) { | ||
166 | if (ch == 'v') { | ||
167 | niro | 816 | dumper->dump_vflag = ALL; |
168 | niro | 532 | } else if (((p = strchr(od_opts, ch)) != NULL) && (*p != '\0')) { |
169 | if (first) { | ||
170 | first = 0; | ||
171 | niro | 816 | bb_dump_add(dumper, "\"%07.7_Ao\n\""); |
172 | bb_dump_add(dumper, "\"%07.7_ao \""); | ||
173 | niro | 532 | } else { |
174 | niro | 816 | bb_dump_add(dumper, "\" \""); |
175 | niro | 532 | } |
176 | niro | 816 | bb_dump_add(dumper, add_strings[(int)od_o2si[(p - od_opts)]]); |
177 | niro | 532 | } else { /* P, p, s, w, or other unhandled */ |
178 | bb_show_usage(); | ||
179 | } | ||
180 | } | ||
181 | niro | 816 | if (!dumper->fshead) { |
182 | bb_dump_add(dumper, "\"%07.7_Ao\n\""); | ||
183 | bb_dump_add(dumper, "\"%07.7_ao \" 8/2 \"%06o \" \"\\n\""); | ||
184 | niro | 532 | } |
185 | |||
186 | argc -= optind; | ||
187 | argv += optind; | ||
188 | |||
189 | niro | 816 | odoffset(dumper, argc, &argv); |
190 | niro | 532 | |
191 | niro | 816 | return bb_dump_dump(dumper, argv); |
192 | niro | 532 | } |
193 | #endif /* ENABLE_DESKTOP */ | ||
194 | |||
195 | /*- | ||
196 | * Copyright (c) 1990 The Regents of the University of California. | ||
197 | * All rights reserved. | ||
198 | * | ||
199 | * Redistribution and use in source and binary forms, with or without | ||
200 | * modification, are permitted provided that the following conditions | ||
201 | * are met: | ||
202 | * 1. Redistributions of source code must retain the above copyright | ||
203 | * notice, this list of conditions and the following disclaimer. | ||
204 | * 2. Redistributions in binary form must reproduce the above copyright | ||
205 | * notice, this list of conditions and the following disclaimer in the | ||
206 | * documentation and/or other materials provided with the distribution. | ||
207 | * 3. Neither the name of the University nor the names of its contributors | ||
208 | * may be used to endorse or promote products derived from this software | ||
209 | * without specific prior written permission. | ||
210 | * | ||
211 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
212 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
213 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
214 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
215 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
216 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
217 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
218 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
219 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
220 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
221 | * SUCH DAMAGE. | ||
222 | */ |