Commit | Line | Data |
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b7523e3d HK |
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 | char * | |
58 | cpstr(p,q) | |
59 | char *p, *q; { | |
60 | do { | |
61 | *p++ = *q++; | |
62 | } while (*q != '\0'); | |
63 | *p = '\0'; | |
64 | } | |
65 | L_INT | |
66 | round(a,b) | |
67 | REG L_INT a, b; | |
68 | { | |
69 | REG L_INT w; | |
70 | w = (a/b)*b; | |
71 | IF a!=w THEN w += b; FI | |
72 | return(w); | |
73 | } | |
74 | ||
75 | /* error handling */ | |
76 | ||
77 | chkerr() | |
78 | { | |
79 | IF errflg ORF mkfault | |
80 | THEN error(errflg); | |
81 | longjmp(env, 0); | |
82 | FI | |
83 | } | |
84 | ||
85 | eqstr(s1, s2) | |
86 | REG STRING s1, s2; | |
87 | { | |
88 | REG STRING es1; | |
89 | if (s2 == (STRING) -1) return(0); | |
90 | es1 = s1+8; | |
91 | WHILE *s1++ == *s2 | |
92 | DO IF *s2++ == 0 ORF s1>=es1 | |
93 | THEN return(1); | |
94 | FI | |
95 | OD | |
96 | return(0); | |
97 | } | |
98 | ||
99 | longseek(f, a) | |
100 | L_INT a; | |
101 | { | |
102 | return(lseek(f,(long) a,0) != -1); | |
103 | } | |
104 | ||
105 | ||
106 | /* descriptor format to length */ | |
107 | dtol(d) | |
108 | char d; { | |
109 | switch(d) { | |
110 | ||
111 | case 'a': | |
112 | case 's': | |
113 | return(0); | |
114 | ||
115 | case 'b': | |
116 | case 'c': | |
117 | return(1); | |
118 | ||
119 | case 'h': | |
120 | return(2); | |
121 | ||
122 | case 'l': | |
123 | case 'f': | |
124 | return(4); | |
125 | ||
126 | case 'g': | |
127 | return(8); | |
128 | ||
129 | default: | |
130 | return(WORDSIZE); | |
131 | } | |
132 | } | |
133 | ||
134 | /* | |
135 | * checks equality of pattern pat with str, | |
136 | * assuming str is tructaed at length 8 | |
137 | */ | |
138 | eqpat(pat, str) | |
139 | char *pat, *str; { | |
140 | return(eqpatr(pat, str, 0)); | |
141 | } | |
142 | ||
143 | eqpatr(pat, str, cnt) | |
144 | char *pat, *str; { | |
145 | register int i; | |
146 | register char p, s; | |
147 | ||
148 | p = pat[0]; | |
149 | s = str[0]; | |
150 | if (cnt == 8) return(1); | |
151 | if (p == '?') { | |
152 | if (s == '\0') return(0); | |
153 | return(eqpatr(pat+1, str+1, cnt+1)); | |
154 | } | |
155 | if (p == '*') { | |
156 | if (pat[1] == '\0') return(1); | |
157 | for(i=1; i<8-cnt; i++) { | |
158 | if (eqpatr(pat+1, str+i, cnt+i)) return(1); | |
159 | if (str[i] == '\0') return(0); | |
160 | } | |
161 | return(0); | |
162 | } | |
163 | if ((eqany(p, ".[->") || p == '\0') && s == '\0') return(1); | |
164 | if (p != s) return(0); | |
165 | return(eqpatr(pat+1, str+1, cnt+1)); | |
166 | } | |
167 | ||
168 | /* gets indirect address for pointers and subscripts */ | |
169 | getindir(class, addr, type) | |
170 | ADDR addr; { | |
171 | if (ISARY(type)) return(addr); | |
172 | if (class == N_RSYM) | |
173 | return(*(ADDR *)(((ADDR) &u) + R0 + (WORDSIZE)*addr)); | |
174 | return(getval(addr, 'd')); | |
175 | } | |
176 | ||
177 | long | |
178 | readint(p) | |
179 | char **p; { | |
180 | int sign; | |
181 | ||
182 | if (**p == '-') { | |
183 | sign = -1; | |
184 | (*p)++; | |
185 | } else { | |
186 | sign = 1; | |
187 | } | |
188 | if (**p == '0') { | |
189 | (*p)++; | |
190 | if (**p == 'x' || **p == 'X') { | |
191 | (*p)++; | |
192 | return(sign * rint(p, 16, hexdigit, hexconv)); | |
193 | } | |
194 | else return(sign * rint(p, 8, octdigit, octconv)); | |
195 | } | |
196 | else return(sign * rint(p, 10, decdigit, decconv)); | |
197 | } | |
198 | ||
199 | long | |
200 | rint(p, base, digit, conv) | |
201 | char **p; | |
202 | int (*digit)(), (*conv)(); { | |
203 | long value; | |
204 | ||
205 | value = 0; | |
206 | while ((*digit)(**p)) value = base*value + (*conv)(*(*p)++); | |
207 | return(value); | |
208 | } | |
209 | ||
210 | octdigit(c) | |
211 | char c; { | |
212 | return(c >= '0' && c <= '7'); | |
213 | } | |
214 | ||
215 | octconv(c) | |
216 | char c; { | |
217 | return(c - '0'); | |
218 | } | |
219 | ||
220 | decdigit(c) | |
221 | char c; { | |
222 | return(c >= '0' && c <= '9'); | |
223 | } | |
224 | ||
225 | decconv(c) | |
226 | char c; { | |
227 | return(c - '0'); | |
228 | } | |
229 | ||
230 | hexdigit(c) | |
231 | char c; { | |
232 | return((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || | |
233 | (c >= 'A' && c <= 'F')); | |
234 | } | |
235 | ||
236 | hexconv(c) | |
237 | char c; { | |
238 | if (c >= '0' && c <= '9') return(c - '0'); | |
239 | if (c >= 'a' && c <= 'f') return(c - 'a' + 10); | |
240 | if (c >= 'A' && c <= 'F') return(c - 'A' + 10); | |
241 | error("hex conversion error"); | |
242 | return(0); | |
243 | } | |
244 | ||
245 | /* decodes number, character or variable */ | |
246 | long | |
247 | argvalue(p) | |
248 | char *p; { | |
249 | register char ch; | |
250 | register long value; | |
251 | register ADDR j; | |
252 | char var[30]; | |
253 | ||
254 | ch = *p; | |
255 | if (ch == '\'') { | |
256 | value = *(p+1); | |
257 | } else if ((ch >= '0' && ch <= '9') || ch == '-') { | |
258 | value = readint(&p); | |
259 | } else if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || | |
260 | ch == '_') { | |
261 | cpname(var, p); | |
262 | j = varaddr(curproc()->pname, var); | |
263 | if (j == -1) { | |
264 | printf("Unknown variable: %s\n", argsp); | |
265 | return(-1); | |
266 | } | |
267 | value = getval(j, typetodesc(sl_type, 0)[0]); | |
268 | do { | |
269 | p++; | |
270 | } while (varchar(*p) || number(*p)); | |
271 | } | |
272 | return(value); | |
273 | } |