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1.1 root 1: /* Copyright (c) 1979 Regents of the University of California */
2:
3: static char sccsid[] = "@(#)perror.c 4.1 10/10/80";
4:
5: #include "stdio.h"
6: #include "signal.h"
7: #include "h00vars.h"
8: #include "h01errs.h"
9:
10: /*
11: * Routine error is called from the interpreter when a runtime error occurs.
12: * Its argument is the internal number of the error which occurred.
13: * See Edata, Emake etc.
14: */
15: error(errnum)
16: long errnum;
17: {
18: register long i;
19: extern long errno;
20:
21: signal(SIGINT,SIG_IGN);
22: signal(SIGSEGV,SIG_DFL);
23: signal(SIGFPE,SIG_DFL);
24: i = errno;
25: pflush();
26: errno = i;
27: fputs("\n\n",stderr);
28: switch (errnum) {
29: case EINTR:
30: break;
31: case ECHR:
32: fputs("Argument to chr out of range\n",stderr);
33: break;
34: case EASSIGN:
35: fputs("Overflow during assignment conversion\n",stderr);
36: break;
37: case EFIXADD:
38: fputs("Overflow in fixed point addition\n",stderr);
39: break;
40: case EFLTADD:
41: fputs("Floating point addition out of range\n",stderr);
42: break;
43: case EFIXSUB:
44: fputs("Overflow in fixed point subtraction\n",stderr);
45: break;
46: case EFLTSUB:
47: fputs("Floating point subtraction out of range\n",stderr);
48: break;
49: case EFIXMUL:
50: fputs("Overflow in fixed point multiplication\n",stderr);
51: break;
52: case EFLTMUL:
53: fputs("Floating point multiplication out of range\n",stderr);
54: break;
55: case EFIXDIV:
56: fputs("Fixed point division by zero\n",stderr);
57: break;
58: case EFLTDIV:
59: fputs("Floating point division error\n",stderr);
60: break;
61: case EMODDIV:
62: fputs("Fixed point modulo by zero\n",stderr);
63: break;
64: case EFIXNEG:
65: fputs("Overflow in fixed point negation\n",stderr);
66: break;
67: case ESYSTEM:
68: fputs("Panic: Computational error in interpreter\n",stderr);
69: break;
70: case EBUILTIN:
71: fputs("Overflow in builtin function\n",stderr);
72: break;
73: case EHALT:
74: /*
75: nodump = 0;
76: */
77: fputs("Call to procedure halt\n",stderr);
78: break;
79: case ENILPTR:
80: fputs("Reference through a nil pointer\n",stderr);
81: break;
82: case EPASTEOF:
83: fprintf(stderr,"%s: Tried to read past end of file\n",file);
84: break;
85: case EREADIT:
86: fprintf(stderr,"%s: Attempt to read, but open for writing\n",file);
87: break;
88: case EWRITEIT:
89: fprintf(stderr,"%s: Attempt to write, but open for reading\n",file);
90: break;
91: case ECLOSE:
92: fprintf(stderr,"%s: Close failed\n",file);
93: break;
94: case ELLIMIT:
95: fprintf(stderr,"%s: Line limit exceeded\n",file);
96: break;
97: case ESQRT:
98: fputs("Negative argument to sqrt\n",stderr);
99: break;
100: case ESTKNEMP:
101: fputs("Panic: stack not empty between statements\n",stderr);
102: break;
103: case ESUBSCR:
104: fputs("Subscript out of range\n",stderr);
105: break;
106: case EREFINAF:
107: fputs("Reference to an inactive file\n",stderr);
108: break;
109: case EWRITE:
110: fputs("Could not write to ",stderr);
111: perror(file);
112: break;
113: case EOPEN:
114: fputs("Could not open ",stderr);
115: perror(file);
116: break;
117: case ECREATE:
118: fputs("Could not create ",stderr);
119: perror(file);
120: break;
121: case EREMOVE:
122: fputs("Could not remove ",stderr);
123: perror(file);
124: break;
125: case ESEEK:
126: fputs("Could not reset ",stderr);
127: perror(file);
128: break;
129: case ENAMESIZE:
130: fputs("File name too long\n",stderr);
131: break;
132: case ELN:
133: fputs("Non-positive argument to ln\n",stderr);
134: break;
135: case EBADOP:
136: fputs("Panic: bad op code\n",stderr);
137: break;
138: case EBADINUM:
139: fputs("Bad data found on integer read\n",stderr);
140: break;
141: case EBADFNUM:
142: fputs("Bad data found on real read\n",stderr);
143: break;
144: case ENUMNTFD:
145: fputs("Unknown name found on enumerated type read\n",stderr);
146: break;
147: case ENAMRNG:
148: fputs("Enumerated type value out of range on output\n",stderr);
149: break;
150: case EFMTSIZE:
151: fputs("Negative format width\n",stderr);
152: break;
153: case ENARGS:
154: fputs("Improper number of arguments to formal routine\n"
155: ,stderr);
156: break;
157: case EGOTO:
158: fputs("Panic: active frame not found in goto\n",stderr);
159: break;
160: case ECASE:
161: fputs("Label not found in case\n",stderr);
162: break;
163: case EOUTOFMEM:
164: fputs("Ran out of memory\n",stderr);
165: break;
166: case ETRASHHEAP:
167: fputs("Improper use of new variables has caused heap integrity check to fail\n",stderr);
168: break;
169: case ECTLWR:
170: fputs("Range lower bound out of set bounds\n", stderr);
171: break;
172: case ECTUPR:
173: fputs("Range upper bound out of set bounds\n", stderr);
174: break;
175: case ECTSNG:
176: fputs("Single value out of set bounds\n", stderr);
177: break;
178: case EARGV:
179: fputs("Argument to argv out of range\n",stderr);
180: break;
181: case EPACK:
182: fputs("Bad i to pack(a,i,z)\n",stderr);
183: break;
184: case EUNPACK:
185: fputs("Bad i to unpack(z,a,i)\n",stderr);
186: break;
187: case ERANGE:
188: fputs("Value out of range\n",stderr);
189: break;
190: case EASRT:
191: fputs("Assertion failed\n",stderr);
192: break;
193: case ESTLIM:
194: fputs("Statement count limit exceeded\n",stderr);
195: break;
196: case ESTKOVFLO:
197: fputs("Runtime stack overflow\n",stderr);
198: break;
199: default:
200: fputs("Panic: unknown error\n",stderr);
201: }
202: backtrace(errnum);
203: psexit(errnum);
204: }
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