2 c734c0e9 2021-08-03 op * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
3 c734c0e9 2021-08-03 op * Copyright (c) 2018 Florian Obser <florian@openbsd.org>
4 c734c0e9 2021-08-03 op * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
5 c734c0e9 2021-08-03 op * Copyright (c) 2004 Ryan McBride <mcbride@openbsd.org>
6 c734c0e9 2021-08-03 op * Copyright (c) 2002, 2003, 2004 Henning Brauer <henning@openbsd.org>
7 c734c0e9 2021-08-03 op * Copyright (c) 2001 Markus Friedl. All rights reserved.
8 c734c0e9 2021-08-03 op * Copyright (c) 2001 Daniel Hartmeier. All rights reserved.
9 c734c0e9 2021-08-03 op * Copyright (c) 2001 Theo de Raadt. All rights reserved.
11 c734c0e9 2021-08-03 op * Permission to use, copy, modify, and distribute this software for any
12 c734c0e9 2021-08-03 op * purpose with or without fee is hereby granted, provided that the above
13 c734c0e9 2021-08-03 op * copyright notice and this permission notice appear in all copies.
15 c734c0e9 2021-08-03 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
16 c734c0e9 2021-08-03 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
17 c734c0e9 2021-08-03 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
18 c734c0e9 2021-08-03 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 c734c0e9 2021-08-03 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
20 c734c0e9 2021-08-03 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
21 c734c0e9 2021-08-03 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
26 c734c0e9 2021-08-03 op #include "compat.h"
28 c734c0e9 2021-08-03 op #include <ctype.h>
29 c734c0e9 2021-08-03 op #include <inttypes.h>
30 c734c0e9 2021-08-03 op #include <limits.h>
31 c734c0e9 2021-08-03 op #include <stdio.h>
32 c734c0e9 2021-08-03 op #include <stdlib.h>
33 c734c0e9 2021-08-03 op #include <string.h>
34 c734c0e9 2021-08-03 op #include <syslog.h>
36 c734c0e9 2021-08-03 op #include "log.h"
37 c734c0e9 2021-08-03 op #include "kamid.h"
38 c734c0e9 2021-08-03 op #include "utils.h"
40 c734c0e9 2021-08-03 op #include "script.h"
42 c734c0e9 2021-08-03 op TAILQ_HEAD(files, file) files = TAILQ_HEAD_INITIALIZER(files);
43 c734c0e9 2021-08-03 op static struct file {
44 c734c0e9 2021-08-03 op TAILQ_ENTRY(file) entry;
47 c734c0e9 2021-08-03 op size_t ungetpos;
48 c734c0e9 2021-08-03 op size_t ungetsize;
49 c734c0e9 2021-08-03 op u_char *ungetbuf;
50 c734c0e9 2021-08-03 op int eof_reached;
53 c734c0e9 2021-08-03 op } *file, *topfile;
54 c734c0e9 2021-08-03 op struct file *pushfile(const char *);
55 c734c0e9 2021-08-03 op int popfile(void);
56 c734c0e9 2021-08-03 op int yyparse(void);
57 c734c0e9 2021-08-03 op int yylex(void);
58 c734c0e9 2021-08-03 op int yyerror(const char *, ...)
59 c734c0e9 2021-08-03 op __attribute__((__format__ (printf, 1, 2)))
60 c734c0e9 2021-08-03 op __attribute__((__nonnull__ (1)));
61 c734c0e9 2021-08-03 op int kw_cmp(const void *, const void *);
62 c734c0e9 2021-08-03 op int lookup(char *);
63 c734c0e9 2021-08-03 op int igetc(void);
64 c734c0e9 2021-08-03 op int lgetc(int);
65 c734c0e9 2021-08-03 op void lungetc(int);
66 c734c0e9 2021-08-03 op int findeol(void);
68 c734c0e9 2021-08-03 op typedef struct {
70 c734c0e9 2021-08-03 op struct op *op;
71 c734c0e9 2021-08-03 op struct proc *proc;
82 c734c0e9 2021-08-03 op * %define parse.error verbose
89 c734c0e9 2021-08-03 op %token INCLUDE
93 c734c0e9 2021-08-03 op %token TESTING
94 c734c0e9 2021-08-03 op %token U8 U16 U32
96 c734c0e9 2021-08-03 op %token <v.str> STRING SYMBOL
97 c734c0e9 2021-08-03 op %token <v.num> NUMBER
99 c734c0e9 2021-08-03 op %type <v.op> cast cexpr check expr funcall
100 c734c0e9 2021-08-03 op %type <v.op> literal var varref
102 c734c0e9 2021-08-03 op %type <v.proc> procname
106 c734c0e9 2021-08-03 op program : /* empty */
107 c734c0e9 2021-08-03 op | program '\n'
108 c734c0e9 2021-08-03 op | program include '\n'
109 c734c0e9 2021-08-03 op | program const '\n'
110 c734c0e9 2021-08-03 op | program proc '\n'
111 c734c0e9 2021-08-03 op | program test '\n'
114 c734c0e9 2021-08-03 op optnl : '\n' optnl /* zero or more newlines */
118 c734c0e9 2021-08-03 op nl : '\n' optnl /* one or more newlines */
121 c734c0e9 2021-08-03 op include : INCLUDE STRING {
122 c734c0e9 2021-08-03 op struct file *nfile;
124 c734c0e9 2021-08-03 op if ((nfile = pushfile($2)) == NULL) {
125 c734c0e9 2021-08-03 op yyerror("failed to include file %s", $2);
131 c734c0e9 2021-08-03 op file = nfile;
132 c734c0e9 2021-08-03 op lungetc('\n');
136 c734c0e9 2021-08-03 op const : CONST SYMBOL '=' literal { global_set($2, $4); };
138 c734c0e9 2021-08-03 op var : SYMBOL '=' expr { $$ = op_assign($1, $3); } ;
139 c734c0e9 2021-08-03 op varref : SYMBOL { $$ = op_var($1); } ;
140 c734c0e9 2021-08-03 op literal : STRING { $$ = op_lit_str($1); }
141 c734c0e9 2021-08-03 op | NUMBER { $$ = op_lit_num($1); } ;
144 c734c0e9 2021-08-03 op * `expr '=' '=' expr` is ambiguous. furthermore, we're not
145 c734c0e9 2021-08-03 op * interested in checking all the possibilities here.
147 c734c0e9 2021-08-03 op cexpr : literal | varref | funcall ;
148 c734c0e9 2021-08-03 op check : cexpr '=' '=' cexpr { $$ = op_cmp_eq($1, $4); } ;
150 c734c0e9 2021-08-03 op expr : literal | funcall | varref | check | cast ;
152 c734c0e9 2021-08-03 op cast : expr ':' U8 { $$ = op_cast($1, V_U8); }
153 c734c0e9 2021-08-03 op | expr ':' U16 { $$ = op_cast($1, V_U16); }
154 c734c0e9 2021-08-03 op | expr ':' U32 { $$ = op_cast($1, V_U32); }
155 c734c0e9 2021-08-03 op | expr ':' STR { $$ = op_cast($1, V_STR); }
158 c734c0e9 2021-08-03 op procname: SYMBOL {
159 c734c0e9 2021-08-03 op if (($$ = proc_by_name($1)) == NULL) {
160 c734c0e9 2021-08-03 op yyerror("unknown proc %s", $1);
168 c734c0e9 2021-08-03 op funcall : procname {
169 d9d02161 2021-08-04 op prepare_funcall();
170 c734c0e9 2021-08-03 op } '(' args optcomma ')' {
171 d9d02161 2021-08-04 op $$ = op_funcall($1);
175 c734c0e9 2021-08-03 op optcomma: /* empty */ | ',' ;
177 c734c0e9 2021-08-03 op args : /* empty */
178 c734c0e9 2021-08-03 op | args ',' expr { push_arg($3); }
179 c734c0e9 2021-08-03 op | expr { push_arg($1); }
182 c734c0e9 2021-08-03 op proc : PROC SYMBOL {
183 d9d02161 2021-08-04 op prepare_proc();
184 c734c0e9 2021-08-03 op } '(' args ')' {
185 d9d02161 2021-08-04 op if (!proc_setup_body()) {
186 d9d02161 2021-08-04 op yyerror("invalid argument in proc `%s' definition",
191 c734c0e9 2021-08-03 op } '{' optnl block '}' {
192 d9d02161 2021-08-04 op proc_done($2);
196 c734c0e9 2021-08-03 op block : /* empty */
197 c734c0e9 2021-08-03 op | block var '\n' { block_push($2); }
198 c734c0e9 2021-08-03 op | block funcall '\n' { block_push($2); }
199 c734c0e9 2021-08-03 op | block assert '\n'
202 c734c0e9 2021-08-03 op assert : ASSERT check { block_push(op_assert($2)); }
203 c734c0e9 2021-08-03 op /* | ASSERT '(' optnl massert ')' */
206 c734c0e9 2021-08-03 op massert : /* empty */
207 c734c0e9 2021-08-03 op | massert ',' optnl check { block_push(op_assert($4)); }
208 c734c0e9 2021-08-03 op | check { block_push(op_assert($1)); }
211 c734c0e9 2021-08-03 op test : TESTING STRING DIR STRING {
212 d9d02161 2021-08-04 op prepare_test();
213 c734c0e9 2021-08-03 op } '{' optnl block '}' {
214 d9d02161 2021-08-04 op test_done($2, $4);
220 c734c0e9 2021-08-03 op struct keywords {
221 c734c0e9 2021-08-03 op const char *k_name;
226 c734c0e9 2021-08-03 op yyerror(const char *fmt, ...)
231 c734c0e9 2021-08-03 op file->errors++;
232 c734c0e9 2021-08-03 op va_start(ap, fmt);
233 c734c0e9 2021-08-03 op if (vasprintf(&msg, fmt, ap) == -1)
234 c734c0e9 2021-08-03 op fatalx("yyerror vasprintf");
236 c734c0e9 2021-08-03 op logit(LOG_CRIT, "%s:%d: %s", file->name, yylval.lineno, msg);
242 c734c0e9 2021-08-03 op kw_cmp(const void *k, const void *e)
244 c734c0e9 2021-08-03 op return strcmp(k, ((const struct keywords *)e)->k_name);
248 c734c0e9 2021-08-03 op lookup(char *s)
250 c734c0e9 2021-08-03 op /* This has to be sorted always. */
251 c734c0e9 2021-08-03 op static const struct keywords keywords[] = {
252 c734c0e9 2021-08-03 op {"assert", ASSERT},
253 c734c0e9 2021-08-03 op {"const", CONST},
254 c734c0e9 2021-08-03 op {"dir", DIR},
255 c734c0e9 2021-08-03 op {"include", INCLUDE},
256 c734c0e9 2021-08-03 op {"proc", PROC},
257 c734c0e9 2021-08-03 op {"repeat", REPEAT},
258 c734c0e9 2021-08-03 op {"str", STR},
259 c734c0e9 2021-08-03 op {"testing", TESTING},
261 c734c0e9 2021-08-03 op {"u16", U16},
262 c734c0e9 2021-08-03 op {"u32", U32},
264 c734c0e9 2021-08-03 op const struct keywords *p;
266 c734c0e9 2021-08-03 op p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
267 c734c0e9 2021-08-03 op sizeof(keywords[0]), kw_cmp);
270 c734c0e9 2021-08-03 op return p->k_val;
272 c734c0e9 2021-08-03 op return SYMBOL;
275 c734c0e9 2021-08-03 op #define START_EXPAND 1
276 c734c0e9 2021-08-03 op #define DONE_EXPAND 2
278 c734c0e9 2021-08-03 op static int expanding;
286 c734c0e9 2021-08-03 op if (file->ungetpos > 0)
287 c734c0e9 2021-08-03 op c = file->ungetbuf[--file->ungetpos];
289 c734c0e9 2021-08-03 op c = getc(file->stream);
291 c734c0e9 2021-08-03 op if (c == START_EXPAND)
292 c734c0e9 2021-08-03 op expanding = 1;
293 c734c0e9 2021-08-03 op else if (c == DONE_EXPAND)
294 c734c0e9 2021-08-03 op expanding = 0;
302 c734c0e9 2021-08-03 op lgetc(int quotec)
306 c734c0e9 2021-08-03 op if (quotec) {
307 c734c0e9 2021-08-03 op if ((c = igetc()) == EOF) {
308 c734c0e9 2021-08-03 op yyerror("reached end of file while parsing "
309 c734c0e9 2021-08-03 op "quoted string");
310 c734c0e9 2021-08-03 op if (file == topfile || popfile() == EOF)
312 c734c0e9 2021-08-03 op return quotec;
317 c734c0e9 2021-08-03 op while ((c = igetc()) == '\\') {
318 c734c0e9 2021-08-03 op next = igetc();
319 c734c0e9 2021-08-03 op if (next != '\n') {
323 c734c0e9 2021-08-03 op yylval.lineno = file->lineno;
324 c734c0e9 2021-08-03 op file->lineno++;
327 c734c0e9 2021-08-03 op if (c == EOF) {
329 c734c0e9 2021-08-03 op * Fake EOL when hit EOF for the first time. This gets line
330 c734c0e9 2021-08-03 op * count right if last line in included file is syntactically
331 c734c0e9 2021-08-03 op * invalid and has no newline.
333 c734c0e9 2021-08-03 op if (file->eof_reached == 0) {
334 c734c0e9 2021-08-03 op file->eof_reached = 1;
337 c734c0e9 2021-08-03 op while (c == EOF) {
338 c734c0e9 2021-08-03 op if (file == topfile || popfile() == EOF)
347 c734c0e9 2021-08-03 op lungetc(int c)
349 c734c0e9 2021-08-03 op if (c == EOF)
352 c734c0e9 2021-08-03 op if (file->ungetpos >= file->ungetsize) {
353 c734c0e9 2021-08-03 op void *p = reallocarray(file->ungetbuf, file->ungetsize, 2);
354 c734c0e9 2021-08-03 op if (p == NULL)
355 c734c0e9 2021-08-03 op err(1, "lungetc");
356 c734c0e9 2021-08-03 op file->ungetbuf = p;
357 c734c0e9 2021-08-03 op file->ungetsize *= 2;
359 c734c0e9 2021-08-03 op file->ungetbuf[file->ungetpos++] = c;
363 c734c0e9 2021-08-03 op findeol(void)
367 c734c0e9 2021-08-03 op /* Skip to either EOF or the first real EOL. */
369 c734c0e9 2021-08-03 op c = lgetc(0);
370 c734c0e9 2021-08-03 op if (c == '\n') {
371 c734c0e9 2021-08-03 op file->lineno++;
374 c734c0e9 2021-08-03 op if (c == EOF)
377 c734c0e9 2021-08-03 op return ERROR;
382 c734c0e9 2021-08-03 op int my_yylex(void);
389 c734c0e9 2021-08-03 op switch (x = my_yylex()) {
390 c734c0e9 2021-08-03 op case ASSERT: puts("assert"); break;
391 c734c0e9 2021-08-03 op case CONST: puts("const"); break;
392 c734c0e9 2021-08-03 op case DIR: puts("dir"); break;
393 c734c0e9 2021-08-03 op case ERROR: puts("error"); break;
394 c734c0e9 2021-08-03 op case INCLUDE: puts("include"); break;
395 c734c0e9 2021-08-03 op case PROC: puts("proc"); break;
396 c734c0e9 2021-08-03 op case REPEAT: puts("repeat"); break;
397 c734c0e9 2021-08-03 op case STR: puts(":str"); break;
398 c734c0e9 2021-08-03 op case TESTING: puts("testing"); break;
399 c734c0e9 2021-08-03 op case U8: puts(":u8"); break;
400 c734c0e9 2021-08-03 op case U16: puts(":u16"); break;
401 c734c0e9 2021-08-03 op case U32: puts(":u32"); break;
403 c734c0e9 2021-08-03 op case STRING: printf("string \"%s\"\n", yylval.v.str); break;
404 c734c0e9 2021-08-03 op case SYMBOL: printf("symbol %s\n", yylval.v.str); break;
405 c734c0e9 2021-08-03 op case NUMBER: printf("number %"PRIu64"\n", yylval.v.num); break;
408 c734c0e9 2021-08-03 op printf("character ");
409 c734c0e9 2021-08-03 op if (x == '\n')
410 c734c0e9 2021-08-03 op printf("\\n");
412 c734c0e9 2021-08-03 op printf("%c", x);
413 c734c0e9 2021-08-03 op printf(" [0x%x]", x);
414 c734c0e9 2021-08-03 op printf("\n");
422 c734c0e9 2021-08-03 op my_yylex(void)
428 c734c0e9 2021-08-03 op unsigned char buf[8096];
429 c734c0e9 2021-08-03 op unsigned char *p;
430 c734c0e9 2021-08-03 op int quotec, next, c;
434 c734c0e9 2021-08-03 op while ((c = lgetc(0)) == ' ' || c == '\t' || c == '\f')
437 c734c0e9 2021-08-03 op yylval.lineno = file->lineno;
438 c734c0e9 2021-08-03 op if (c == '#')
439 c734c0e9 2021-08-03 op while ((c = lgetc(0)) != '\n' && c != EOF)
447 c734c0e9 2021-08-03 op if ((c = lgetc(quotec)) == EOF)
449 c734c0e9 2021-08-03 op if (c == '\n') {
450 c734c0e9 2021-08-03 op file->lineno++;
452 c734c0e9 2021-08-03 op } else if (c == '\\') {
453 c734c0e9 2021-08-03 op if ((next = lgetc(quotec)) == EOF)
455 c734c0e9 2021-08-03 op if (next == quotec || next == ' ' ||
456 c734c0e9 2021-08-03 op next == '\t')
458 c734c0e9 2021-08-03 op else if (next == '\n') {
459 c734c0e9 2021-08-03 op file->lineno++;
462 c734c0e9 2021-08-03 op lungetc(next);
463 c734c0e9 2021-08-03 op } else if (c == quotec) {
466 c734c0e9 2021-08-03 op } else if (c == '\0') {
467 c734c0e9 2021-08-03 op yyerror("syntax error");
468 c734c0e9 2021-08-03 op return findeol();
471 c734c0e9 2021-08-03 op if (p + 1 >= buf + sizeof(buf) - 1) {
472 c734c0e9 2021-08-03 op yyerror("string too long");
473 c734c0e9 2021-08-03 op return findeol();
479 c734c0e9 2021-08-03 op yylval.v.str = xstrdup(buf);
480 c734c0e9 2021-08-03 op return STRING;
483 c734c0e9 2021-08-03 op #define allowed_to_end_number(x) \
484 c734c0e9 2021-08-03 op (isspace(x) || x == ')' || x == ',' || x == '/' || x == '}' \
487 c734c0e9 2021-08-03 op if (c == '-' || isdigit(c)) {
490 c734c0e9 2021-08-03 op if ((size_t)(p-buf) >= sizeof(buf)) {
491 c734c0e9 2021-08-03 op yyerror("string too long");
492 c734c0e9 2021-08-03 op return findeol();
494 c734c0e9 2021-08-03 op } while ((c = lgetc(0)) != EOF && isdigit(c));
496 c734c0e9 2021-08-03 op if (p == buf + 1 && buf[0] == '-')
497 c734c0e9 2021-08-03 op goto nodigits;
498 c734c0e9 2021-08-03 op if (c == EOF || allowed_to_end_number(c)) {
499 c734c0e9 2021-08-03 op const char *errstr = NULL;
502 c734c0e9 2021-08-03 op yylval.v.num = strtonum(buf, INT64_MIN, INT64_MAX,
504 c734c0e9 2021-08-03 op if (errstr) {
505 c734c0e9 2021-08-03 op yyerror("\"%s\" invalid number: %s",
506 c734c0e9 2021-08-03 op buf, errstr);
507 c734c0e9 2021-08-03 op return findeol();
509 c734c0e9 2021-08-03 op return NUMBER;
512 c734c0e9 2021-08-03 op while (p > buf + 1)
513 c734c0e9 2021-08-03 op lungetc(*--p);
515 c734c0e9 2021-08-03 op if (c == '-')
520 c734c0e9 2021-08-03 op #define allowed_in_symbol(x) \
521 c734c0e9 2021-08-03 op (isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
522 c734c0e9 2021-08-03 op x != '{' && x != '}' && \
523 c734c0e9 2021-08-03 op x != '!' && x != '=' && \
524 c734c0e9 2021-08-03 op x != '#' && x != ','))
526 c734c0e9 2021-08-03 op if (isalnum(c) || c == ':' || c == '_') {
529 c734c0e9 2021-08-03 op if ((size_t)(p-buf) >= sizeof(buf)) {
530 c734c0e9 2021-08-03 op yyerror("string too long");
531 c734c0e9 2021-08-03 op return findeol();
533 c734c0e9 2021-08-03 op } while ((c = lgetc(0)) != EOF && (allowed_in_symbol(c)));
536 c734c0e9 2021-08-03 op if ((token = lookup(buf)) == SYMBOL)
537 c734c0e9 2021-08-03 op yylval.v.str = xstrdup(buf);
538 c734c0e9 2021-08-03 op return token;
541 c734c0e9 2021-08-03 op if (c == '\n') {
542 c734c0e9 2021-08-03 op yylval.lineno = file->lineno;
543 c734c0e9 2021-08-03 op file->lineno++;
545 c734c0e9 2021-08-03 op if (c == EOF)
550 c734c0e9 2021-08-03 op struct file *
551 c734c0e9 2021-08-03 op pushfile(const char *name)
553 c734c0e9 2021-08-03 op struct file *nfile;
555 c734c0e9 2021-08-03 op if ((nfile = calloc(1, sizeof(struct file))) == NULL) {
556 c734c0e9 2021-08-03 op log_warn("calloc");
559 c734c0e9 2021-08-03 op if ((nfile->name = strdup(name)) == NULL) {
560 c734c0e9 2021-08-03 op log_warn("strdup");
564 c734c0e9 2021-08-03 op if ((nfile->stream = fopen(nfile->name, "r")) == NULL) {
565 c734c0e9 2021-08-03 op log_warn("%s", nfile->name);
566 c734c0e9 2021-08-03 op free(nfile->name);
570 c734c0e9 2021-08-03 op nfile->lineno = TAILQ_EMPTY(&files) ? 1 : 0;
571 c734c0e9 2021-08-03 op nfile->ungetsize = 16;
572 c734c0e9 2021-08-03 op nfile->ungetbuf = malloc(nfile->ungetsize);
573 c734c0e9 2021-08-03 op if (nfile->ungetbuf == NULL) {
574 c734c0e9 2021-08-03 op log_warn("malloc");
575 c734c0e9 2021-08-03 op fclose(nfile->stream);
576 c734c0e9 2021-08-03 op free(nfile->name);
580 c734c0e9 2021-08-03 op TAILQ_INSERT_TAIL(&files, nfile, entry);
581 c734c0e9 2021-08-03 op return nfile;
585 c734c0e9 2021-08-03 op popfile(void)
587 c734c0e9 2021-08-03 op struct file *prev;
589 c734c0e9 2021-08-03 op if ((prev = TAILQ_PREV(file, files, entry)) != NULL)
590 c734c0e9 2021-08-03 op prev->errors += file->errors;
592 c734c0e9 2021-08-03 op TAILQ_REMOVE(&files, file, entry);
593 c734c0e9 2021-08-03 op fclose(file->stream);
594 c734c0e9 2021-08-03 op free(file->name);
595 c734c0e9 2021-08-03 op free(file->ungetbuf);
598 c734c0e9 2021-08-03 op return file ? 0 : EOF;
602 c734c0e9 2021-08-03 op loadfile(const char *path)
606 c734c0e9 2021-08-03 op file = pushfile(path);
607 c734c0e9 2021-08-03 op if (file == NULL)
608 c734c0e9 2021-08-03 op err(1, "pushfile");
609 c734c0e9 2021-08-03 op topfile = file;
612 c734c0e9 2021-08-03 op errors = file->errors;
616 c734c0e9 2021-08-03 op errx(1, "can't load %s because of errors", path);