Commit | Line | Data |
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706fce91 TL |
1 | #include "head.h" |
2 | #include <a.out.h> | |
3 | #include "cdefs.h" | |
4 | #include <stdio.h> | |
5 | struct user u; | |
6 | ||
7 | char * | |
8 | readline(f) | |
9 | FILE *f; { | |
10 | static char buff[128]; | |
11 | ||
12 | register char *p; | |
13 | register int i; | |
14 | ||
15 | p = buff; | |
16 | do { | |
17 | if ((i = getc(f)) == EOF) { | |
18 | *p++ = '\004'; | |
19 | *p = '\n'; | |
20 | } | |
21 | else *p = i; | |
22 | } while (*p++ != '\n'); | |
23 | ||
24 | return(buff); | |
25 | } | |
26 | ||
27 | char * | |
28 | cpname(p, q) | |
29 | char *p, *q; { | |
30 | while(varchar(*q) || number(*q)) | |
31 | *p++ = *q++; | |
32 | *p = '\0'; | |
33 | return(q); | |
34 | } | |
35 | ||
36 | char * | |
37 | cpall(p, q) | |
38 | char *p, *q; { | |
39 | while (*q != '\n') | |
40 | *p++ = *q++; | |
41 | *p = '\0'; | |
42 | return(q); | |
43 | } | |
44 | ||
45 | eqany(c, s) | |
46 | char c, *s; { | |
47 | while(*s != '\0') | |
48 | if (c == *s++) return(1); | |
49 | return(0); | |
50 | } | |
51 | ||
52 | error(s) | |
53 | char *s; { | |
54 | printf("%s\n", s); | |
55 | } | |
56 | ||
57 | cpstr(p,q) | |
58 | char *p, *q; { | |
59 | do { | |
60 | *p++ = *q++; | |
61 | } while (*q != '\0'); | |
62 | *p = '\0'; | |
63 | } | |
64 | L_INT | |
65 | round(a,b) | |
66 | REG L_INT a, b; | |
67 | { | |
68 | REG L_INT w; | |
69 | w = (a/b)*b; | |
70 | IF a!=w THEN w += b; FI | |
71 | return(w); | |
72 | } | |
73 | ||
74 | /* error handling */ | |
75 | ||
76 | chkerr() | |
77 | { | |
78 | IF errflg ORF mkfault | |
79 | THEN error(errflg); | |
80 | reset(); | |
81 | FI | |
82 | } | |
83 | ||
84 | eqstr(s1, s2) | |
85 | REG STRING s1, s2; | |
86 | { | |
87 | REG STRING es1; | |
88 | if (s2 == (STRING) -1) return(0); | |
89 | es1 = s1+8; | |
90 | WHILE *s1++ == *s2 | |
91 | DO IF *s2++ == 0 ORF s1>=es1 | |
92 | THEN return(1); | |
93 | FI | |
94 | OD | |
95 | return(0); | |
96 | } | |
97 | ||
98 | longseek(f, a) | |
99 | L_INT a; | |
100 | { | |
101 | #ifndef EDDT | |
102 | return(lseek(f,(long) a,0) != -1); | |
103 | #endif | |
104 | } | |
105 | ||
106 | ||
107 | /* descriptor format to length */ | |
108 | dtol(d) | |
109 | char d; { | |
110 | switch(d) { | |
111 | ||
112 | case 'a': | |
113 | case 's': | |
114 | return(0); | |
115 | ||
116 | case 'b': | |
117 | case 'c': | |
118 | return(1); | |
119 | ||
120 | case 'h': | |
121 | return(2); | |
122 | ||
123 | case 'l': | |
124 | case 'f': | |
125 | return(4); | |
126 | ||
127 | case 'g': | |
128 | return(8); | |
129 | ||
130 | default: | |
131 | return(WORDSIZE); | |
132 | } | |
133 | } | |
134 | ||
135 | /* | |
136 | * checks equality of pattern pat with str, | |
137 | * assuming str is tructaed at length 8 | |
138 | */ | |
139 | eqpat(pat, str) | |
140 | char *pat, *str; { | |
141 | return(eqpatr(pat, str, 0)); | |
142 | } | |
143 | ||
144 | eqpatr(pat, str, cnt) | |
145 | char *pat, *str; { | |
146 | register int i; | |
147 | register char p, s; | |
148 | ||
149 | p = pat[0]; | |
150 | s = str[0]; | |
151 | if (cnt == 8) return(1); | |
152 | if (p == '?') return(eqpatr(pat+1, str+1, cnt+1)); | |
153 | if (p == '*') { | |
154 | for(i=1; i<8-cnt; i++) { | |
155 | if (eqpatr(pat+1, str+i, cnt+i)) return(1); | |
156 | if (str[i] == '\0') return(0); | |
157 | } | |
158 | return(0); | |
159 | } | |
160 | if ((eqany(p, ".[->") || p == '\0') && s == '\0') return(1); | |
161 | if (p != s) return(0); | |
162 | return(eqpatr(pat+1, str+1, cnt+1)); | |
163 | } | |
164 | ||
165 | /* gets indirect address for pointers and subscripts */ | |
166 | getindir(class, addr, type) | |
167 | ADDR addr; { | |
168 | if (ISARY(type)) return(addr); | |
169 | if (class == N_RSYM) | |
170 | return(*(ADDR *)(((ADDR) &u) + R0 + (WORDSIZE)*addr)); | |
171 | return(getval(addr, 'd')); | |
172 | } | |
173 | ||
174 | long | |
175 | readint(p) | |
176 | char **p; { | |
177 | int sign; | |
178 | ||
179 | if (**p == '-') { | |
180 | sign = -1; | |
181 | (*p)++; | |
182 | } else { | |
183 | sign = 1; | |
184 | } | |
185 | if (**p == '0') { | |
186 | (*p)++; | |
187 | if (**p == 'x' || **p == 'X') { | |
188 | (*p)++; | |
189 | return(sign * rint(p, 16, hexdigit, hexconv)); | |
190 | } | |
191 | else return(sign * rint(p, 8, octdigit, octconv)); | |
192 | } | |
193 | else return(sign * rint(p, 10, decdigit, decconv)); | |
194 | } | |
195 | ||
196 | long | |
197 | rint(p, base, digit, conv) | |
198 | char **p; | |
199 | int (*digit)(), (*conv)(); { | |
200 | long value; | |
201 | ||
202 | value = 0; | |
203 | while ((*digit)(**p)) value = base*value + (*conv)(*(*p)++); | |
204 | return(value); | |
205 | } | |
206 | ||
207 | octdigit(c) | |
208 | char c; { | |
209 | return(c >= '0' && c <= '7'); | |
210 | } | |
211 | ||
212 | octconv(c) | |
213 | char c; { | |
214 | return(c - '0'); | |
215 | } | |
216 | ||
217 | decdigit(c) | |
218 | char c; { | |
219 | return(c >= '0' && c <= '9'); | |
220 | } | |
221 | ||
222 | decconv(c) | |
223 | char c; { | |
224 | return(c - '0'); | |
225 | } | |
226 | ||
227 | hexdigit(c) | |
228 | char c; { | |
229 | return((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || | |
230 | (c >= 'A' && c <= 'F')); | |
231 | } | |
232 | ||
233 | hexconv(c) | |
234 | char c; { | |
235 | if (c >= '0' && c <= '9') return(c - '0'); | |
236 | if (c >= 'a' && c <= 'f') return(c - 'a' + 10); | |
237 | if (c >= 'A' && c <= 'F') return(c - 'A' + 10); | |
238 | error("hex conversion error"); | |
239 | return(0); | |
240 | } | |
241 | ||
242 | /* decodes number, character or variable */ | |
243 | long | |
244 | argvalue(p) | |
245 | char *p; { | |
246 | register char ch; | |
247 | register long value; | |
248 | register ADDR j; | |
249 | char var[30]; | |
250 | ||
251 | ch = *p; | |
252 | if (ch == '\'') { | |
253 | value = *(p+1); | |
254 | } else if ((ch >= '0' && ch <= '9') || ch == '-') { | |
255 | value = readint(&p); | |
256 | } else if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || | |
257 | ch == '_') { | |
258 | cpname(var, p); | |
259 | j = varaddr(curproc()->pname, var); | |
260 | if (j == -1) { | |
261 | printf("Unknown variable: %s\n", argsp); | |
262 | return(-1); | |
263 | } | |
264 | value = getval(j, typetodesc(sl_type, 0)[0]); | |
265 | do { | |
266 | p++; | |
267 | } while (varchar(*p) || number(*p)); | |
268 | } | |
269 | return(value); | |
270 | } | |
271 |