Commit | Line | Data |
---|---|---|
b4e2e355 KT |
1 | /* |
2 | * od -- octal (also hex, decimal, and character) dump | |
3 | */ | |
4 | ||
5 | #include <stdio.h> | |
6 | ||
7 | unsigned short word[8]; | |
8 | unsigned short lastword[8]; | |
9 | int conv; | |
10 | int base = 010; | |
11 | int max; | |
12 | long addr; | |
13 | ||
14 | main(argc, argv) | |
15 | char **argv; | |
16 | { | |
17 | register char *p; | |
18 | register n, f, same; | |
19 | ||
20 | ||
21 | argv++; | |
22 | f = 0; | |
23 | if(argc > 1) { | |
24 | p = *argv; | |
25 | if(*p == '-') { | |
26 | while(*p != '\0') { | |
27 | switch(*p++) { | |
28 | case 'o': | |
29 | conv |= 001; | |
30 | f = 6; | |
31 | break; | |
32 | case 'd': | |
33 | conv |= 002; | |
34 | f = 5; | |
35 | break; | |
36 | case 'x': | |
37 | case 'h': | |
38 | conv |= 010; | |
39 | f = 4; | |
40 | break; | |
41 | case 'c': | |
42 | conv |= 020; | |
43 | f = 7; | |
44 | break; | |
45 | case 'b': | |
46 | conv |= 040; | |
47 | f = 7; | |
48 | break; | |
49 | } | |
50 | if(f > max) | |
51 | max = f; | |
52 | } | |
53 | argc--; | |
54 | argv++; | |
55 | } | |
56 | } | |
57 | if(!conv) { | |
58 | max = 6; | |
59 | conv = 1; | |
60 | } | |
61 | if(argc > 1) | |
62 | if(**argv != '+') { | |
63 | if (freopen(*argv, "r", stdin) == NULL) { | |
64 | printf("cannot open %s\n", *argv); | |
65 | exit(1); | |
66 | } | |
67 | argv++; | |
68 | argc--; | |
69 | } | |
70 | if(argc > 1) | |
71 | offset(*argv); | |
72 | ||
73 | same = -1; | |
74 | for ( ; (n = fread((char *)word, 1, sizeof(word), stdin)) > 0; addr += n) { | |
75 | if (same>=0) { | |
76 | for (f=0; f<8; f++) | |
77 | if (lastword[f] != word[f]) | |
78 | goto notsame; | |
79 | if (same==0) { | |
80 | printf("*\n"); | |
81 | same = 1; | |
82 | } | |
83 | continue; | |
84 | } | |
85 | notsame: | |
86 | line(addr, word, (n+sizeof(word[0])-1)/sizeof(word[0])); | |
87 | same = 0; | |
88 | for (f=0; f<8; f++) | |
89 | lastword[f] = word[f]; | |
90 | for (f=0; f<8; f++) | |
91 | word[f] = 0; | |
92 | } | |
93 | putn(addr, base, 7); | |
94 | putchar('\n'); | |
95 | } | |
96 | ||
97 | line(a, w, n) | |
98 | long a; | |
99 | unsigned short *w; | |
100 | { | |
101 | register i, f, c; | |
102 | ||
103 | f = 1; | |
104 | for(c=1; c; c<<=1) { | |
105 | if((c&conv) == 0) | |
106 | continue; | |
107 | if(f) { | |
108 | putn(a, base, 7); | |
109 | putchar(' '); | |
110 | f = 0; | |
111 | } else | |
112 | putchar('\t'); | |
113 | for (i=0; i<n; i++) { | |
114 | putx(w[i], c); | |
115 | putchar(i==n-1? '\n': ' '); | |
116 | } | |
117 | } | |
118 | } | |
119 | ||
120 | putx(n, c) | |
121 | unsigned n; | |
122 | { | |
123 | ||
124 | switch(c) { | |
125 | case 001: | |
126 | pre(6); | |
127 | putn((long)n, 8, 6); | |
128 | break; | |
129 | case 002: | |
130 | pre(5); | |
131 | putn((long)n, 10, 5); | |
132 | break; | |
133 | case 010: | |
134 | pre(4); | |
135 | putn((long)n, 16, 4); | |
136 | break; | |
137 | case 020: | |
138 | pre(7); | |
139 | { | |
140 | unsigned short sn = n; | |
141 | cput(*(char *)&sn); | |
142 | putchar(' '); | |
143 | cput(*((char *)&sn + 1)); | |
144 | break; | |
145 | } | |
146 | case 040: | |
147 | pre(7); | |
148 | { | |
149 | unsigned short sn = n; | |
150 | putn((long)(*(char *)&sn)&0377, 8, 3); | |
151 | putchar(' '); | |
152 | putn((long)(*((char *)&sn + 1))&0377, 8, 3); | |
153 | break; | |
154 | } | |
155 | } | |
156 | } | |
157 | ||
158 | cput(c) | |
159 | { | |
160 | c &= 0377; | |
161 | if(c>037 && c<0177) { | |
162 | printf(" "); | |
163 | putchar(c); | |
164 | return; | |
165 | } | |
166 | switch(c) { | |
167 | case '\0': | |
168 | printf(" \\0"); | |
169 | break; | |
170 | case '\b': | |
171 | printf(" \\b"); | |
172 | break; | |
173 | case '\f': | |
174 | printf(" \\f"); | |
175 | break; | |
176 | case '\n': | |
177 | printf(" \\n"); | |
178 | break; | |
179 | case '\r': | |
180 | printf(" \\r"); | |
181 | break; | |
182 | case '\t': | |
183 | printf(" \\t"); | |
184 | break; | |
185 | default: | |
186 | putn((long)c, 8, 3); | |
187 | } | |
188 | } | |
189 | ||
190 | putn(n, b, c) | |
191 | long n; | |
192 | { | |
193 | register d; | |
194 | ||
195 | if(!c) | |
196 | return; | |
197 | putn(n/b, b, c-1); | |
198 | d = n%b; | |
199 | if (d > 9) | |
200 | putchar(d-10+'a'); | |
201 | else | |
202 | putchar(d+'0'); | |
203 | } | |
204 | ||
205 | pre(n) | |
206 | { | |
207 | int i; | |
208 | ||
209 | for(i=n; i<max; i++) | |
210 | putchar(' '); | |
211 | } | |
212 | ||
213 | offset(s) | |
214 | register char *s; | |
215 | { | |
216 | register char *p; | |
217 | long a; | |
218 | register int d; | |
219 | ||
220 | if (*s=='+') | |
221 | s++; | |
222 | if (*s=='x') { | |
223 | s++; | |
224 | base = 16; | |
225 | } else if (*s=='0' && s[1]=='x') { | |
226 | s += 2; | |
227 | base = 16; | |
228 | } else if (*s == '0') | |
229 | base = 8; | |
230 | p = s; | |
231 | while(*p) { | |
232 | if (*p++=='.') | |
233 | base = 10; | |
234 | } | |
235 | for (a=0; *s; s++) { | |
236 | d = *s; | |
237 | if(d>='0' && d<='9') | |
238 | a = a*base + d - '0'; | |
239 | else if (d>='a' && d<='f' && base==16) | |
240 | a = a*base + d + 10 - 'a'; | |
241 | else | |
242 | break; | |
243 | } | |
244 | if (*s == '.') | |
245 | s++; | |
246 | if(*s=='b' || *s=='B') | |
247 | a *= 512; | |
248 | fseek(stdin, a, 0); | |
249 | addr = a; | |
250 | } |