2 b0a6bcf7 2022-09-13 op * Copyright (c) 2022 Omar Polo <op@omarpolo.com>
3 b0a6bcf7 2022-09-13 op * Copyright (c) 2007-2016 Reyk Floeter <reyk@openbsd.org>
4 b0a6bcf7 2022-09-13 op * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
5 b0a6bcf7 2022-09-13 op * Copyright (c) 2004 Ryan McBride <mcbride@openbsd.org>
6 b0a6bcf7 2022-09-13 op * Copyright (c) 2002, 2003, 2004 Henning Brauer <henning@openbsd.org>
7 b0a6bcf7 2022-09-13 op * Copyright (c) 2001 Markus Friedl. All rights reserved.
8 b0a6bcf7 2022-09-13 op * Copyright (c) 2001 Daniel Hartmeier. All rights reserved.
9 b0a6bcf7 2022-09-13 op * Copyright (c) 2001 Theo de Raadt. All rights reserved.
11 b0a6bcf7 2022-09-13 op * Permission to use, copy, modify, and distribute this software for any
12 b0a6bcf7 2022-09-13 op * purpose with or without fee is hereby granted, provided that the above
13 b0a6bcf7 2022-09-13 op * copyright notice and this permission notice appear in all copies.
15 b0a6bcf7 2022-09-13 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
16 b0a6bcf7 2022-09-13 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
17 b0a6bcf7 2022-09-13 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
18 b0a6bcf7 2022-09-13 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 b0a6bcf7 2022-09-13 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
20 b0a6bcf7 2022-09-13 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
21 b0a6bcf7 2022-09-13 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 b0a6bcf7 2022-09-13 op #include <sys/types.h>
26 b0a6bcf7 2022-09-13 op #include <sys/queue.h>
27 b0a6bcf7 2022-09-13 op #include <sys/tree.h>
28 b0a6bcf7 2022-09-13 op #include <sys/uio.h>
30 b0a6bcf7 2022-09-13 op #include <err.h>
31 b0a6bcf7 2022-09-13 op #include <event.h>
32 b0a6bcf7 2022-09-13 op #include <netdb.h>
33 b0a6bcf7 2022-09-13 op #include <stdio.h>
34 b0a6bcf7 2022-09-13 op #include <stdlib.h>
35 b0a6bcf7 2022-09-13 op #include <limits.h>
36 b0a6bcf7 2022-09-13 op #include <stdarg.h>
37 b0a6bcf7 2022-09-13 op #include <stdint.h>
38 b0a6bcf7 2022-09-13 op #include <string.h>
39 b0a6bcf7 2022-09-13 op #include <unistd.h>
40 b0a6bcf7 2022-09-13 op #include <ctype.h>
41 b0a6bcf7 2022-09-13 op #include <errno.h>
42 b0a6bcf7 2022-09-13 op #include <fcntl.h>
43 b0a6bcf7 2022-09-13 op #include <pwd.h>
44 b0a6bcf7 2022-09-13 op #include <imsg.h>
46 b0a6bcf7 2022-09-13 op #include "log.h"
47 b0a6bcf7 2022-09-13 op #include "proc.h"
49 b0a6bcf7 2022-09-13 op #include "galileo.h"
51 b0a6bcf7 2022-09-13 op TAILQ_HEAD(files, file) files = TAILQ_HEAD_INITIALIZER(files);
52 b0a6bcf7 2022-09-13 op static struct file {
53 b0a6bcf7 2022-09-13 op TAILQ_ENTRY(file) entry;
56 b0a6bcf7 2022-09-13 op size_t ungetpos;
57 b0a6bcf7 2022-09-13 op size_t ungetsize;
58 b0a6bcf7 2022-09-13 op u_char *ungetbuf;
59 b0a6bcf7 2022-09-13 op int eof_reached;
62 b0a6bcf7 2022-09-13 op } *file, *topfile;
63 b0a6bcf7 2022-09-13 op struct file *pushfile(const char *, int);
64 b0a6bcf7 2022-09-13 op int popfile(void);
65 b0a6bcf7 2022-09-13 op int yyparse(void);
66 b0a6bcf7 2022-09-13 op int yylex(void);
67 b0a6bcf7 2022-09-13 op int yyerror(const char *, ...)
68 b0a6bcf7 2022-09-13 op __attribute__((__format__ (printf, 1, 2)))
69 b0a6bcf7 2022-09-13 op __attribute__((__nonnull__ (1)));
70 b0a6bcf7 2022-09-13 op int kw_cmp(const void *, const void *);
71 b0a6bcf7 2022-09-13 op int lookup(char *);
72 b0a6bcf7 2022-09-13 op int igetc(void);
73 b0a6bcf7 2022-09-13 op int lgetc(int);
74 b0a6bcf7 2022-09-13 op void lungetc(int);
75 b0a6bcf7 2022-09-13 op int findeol(void);
77 b0a6bcf7 2022-09-13 op TAILQ_HEAD(symhead, sym) symhead = TAILQ_HEAD_INITIALIZER(symhead);
79 b0a6bcf7 2022-09-13 op TAILQ_ENTRY(sym) entry;
85 b0a6bcf7 2022-09-13 op int symset(const char *, const char *, int);
86 b0a6bcf7 2022-09-13 op char *symget(const char *);
88 b0a6bcf7 2022-09-13 op int getservice(const char *);
90 b0a6bcf7 2022-09-13 op static struct galileo *conf = NULL;
91 afb86b2c 2022-09-23 op static struct proxy *pr = NULL;
92 b0a6bcf7 2022-09-13 op static int errors;
94 b0a6bcf7 2022-09-13 op typedef struct {
96 b0a6bcf7 2022-09-13 op int64_t number;
104 b0a6bcf7 2022-09-13 op %token INCLUDE ERROR
105 afb86b2c 2022-09-23 op %token CHROOT HOSTNAME PORT PREFORK PROXY SOURCE STYLESHEET
106 35adaaa9 2022-09-23 op %token <v.number> NUMBER
107 35adaaa9 2022-09-23 op %token <v.string> STRING
108 b0a6bcf7 2022-09-13 op %type <v.number> port
109 b0a6bcf7 2022-09-13 op %type <v.string> string
113 b0a6bcf7 2022-09-13 op grammar : /* empty */
114 b0a6bcf7 2022-09-13 op | grammar include '\n'
115 b0a6bcf7 2022-09-13 op | grammar '\n'
116 b0a6bcf7 2022-09-13 op | grammar varset '\n'
117 b0a6bcf7 2022-09-13 op | grammar main '\n'
118 afb86b2c 2022-09-23 op | grammar proxy '\n'
119 b0a6bcf7 2022-09-13 op | grammar error '\n' { file->errors++; }
122 b0a6bcf7 2022-09-13 op include : INCLUDE string {
123 b0a6bcf7 2022-09-13 op struct file *nfile;
125 b0a6bcf7 2022-09-13 op if ((nfile = pushfile($2, 0)) == NULL) {
126 b0a6bcf7 2022-09-13 op yyerror("failed to include file %s", $2);
132 b0a6bcf7 2022-09-13 op file = nfile;
133 b0a6bcf7 2022-09-13 op lungetc('\n');
137 b0a6bcf7 2022-09-13 op varset : STRING '=' STRING {
138 b0a6bcf7 2022-09-13 op char *s = $1;
139 b0a6bcf7 2022-09-13 op while (*s++) {
140 b0a6bcf7 2022-09-13 op if (isspace((unsigned char)*s)) {
141 b0a6bcf7 2022-09-13 op yyerror("macro name cannot contain "
142 b0a6bcf7 2022-09-13 op "whitespace");
148 b0a6bcf7 2022-09-13 op if (symset($1, $3, 0) == -1)
149 b0a6bcf7 2022-09-13 op fatalx("cannot store variable");
155 b0a6bcf7 2022-09-13 op main : PREFORK NUMBER {
156 b0a6bcf7 2022-09-13 op if ($2 <= 0 || $2 > PROC_MAX_INSTANCES) {
157 b0a6bcf7 2022-09-13 op yyerror("invalid number of preforked "
158 afb86b2c 2022-09-23 op "proxies: %lld", $2);
161 b0a6bcf7 2022-09-13 op conf->sc_prefork = $2;
163 b0a6bcf7 2022-09-13 op | CHROOT STRING {
166 b0a6bcf7 2022-09-13 op n = strlcpy(conf->sc_chroot, $2,
167 b0a6bcf7 2022-09-13 op sizeof(conf->sc_chroot));
168 b0a6bcf7 2022-09-13 op if (n >= sizeof(conf->sc_chroot))
169 b0a6bcf7 2022-09-13 op yyerror("chroot path too long!");
174 afb86b2c 2022-09-23 op proxy : PROXY STRING {
175 afb86b2c 2022-09-23 op struct proxy *p;
178 afb86b2c 2022-09-23 op if ((p = calloc(1, sizeof(*p))) == NULL)
179 b0a6bcf7 2022-09-13 op fatal("calloc");
181 afb86b2c 2022-09-23 op n = strlcpy(p->pr_conf.host, $2,
182 afb86b2c 2022-09-23 op sizeof(p->pr_conf.host));
183 afb86b2c 2022-09-23 op if (n >= sizeof(p->pr_conf.host)) {
184 b0a6bcf7 2022-09-13 op yyerror("server name too long");
192 afb86b2c 2022-09-23 op TAILQ_INSERT_TAIL(&conf->sc_proxies, p, pr_entry);
193 afb86b2c 2022-09-23 op } '{' optnl proxyopts_l '}' {
194 b0a6bcf7 2022-09-13 op /* check if duplicate */
196 c464d38a 2022-09-23 op if (*pr->pr_conf.proxy_addr == '\0')
197 c464d38a 2022-09-23 op yyerror("missing source in proxy block `%s'",
198 c464d38a 2022-09-23 op pr->pr_conf.host);
204 afb86b2c 2022-09-23 op proxyopts_l : proxyopts_l proxyoptsl nl
205 afb86b2c 2022-09-23 op | proxyoptsl optnl
208 26cd3e9d 2022-09-23 op proxyoptsl : SOURCE STRING proxyport {
211 afb86b2c 2022-09-23 op n = strlcpy(pr->pr_conf.proxy_addr, $2,
212 afb86b2c 2022-09-23 op sizeof(pr->pr_conf.proxy_addr));
213 afb86b2c 2022-09-23 op if (n >= sizeof(pr->pr_conf.proxy_addr))
214 afb86b2c 2022-09-23 op yyerror("proxy source too long!");
216 917cf063 2022-09-23 op if (*pr->pr_conf.proxy_name == '\0') {
217 917cf063 2022-09-23 op n = strlcpy(pr->pr_conf.proxy_name, $2,
218 917cf063 2022-09-23 op sizeof(pr->pr_conf.proxy_name));
219 917cf063 2022-09-23 op if (n >= sizeof(pr->pr_conf.proxy_name))
220 917cf063 2022-09-23 op yyerror("proxy hostname too long!");
225 afb86b2c 2022-09-23 op | HOSTNAME STRING {
228 afb86b2c 2022-09-23 op n = strlcpy(pr->pr_conf.proxy_name, $2,
229 afb86b2c 2022-09-23 op sizeof(pr->pr_conf.proxy_name));
230 afb86b2c 2022-09-23 op if (n >= sizeof(pr->pr_conf.proxy_name))
231 afb86b2c 2022-09-23 op yyerror("proxy hostname too long!");
234 afb86b2c 2022-09-23 op | STYLESHEET string {
237 afb86b2c 2022-09-23 op n = strlcpy(pr->pr_conf.stylesheet, $2,
238 afb86b2c 2022-09-23 op sizeof(pr->pr_conf.stylesheet));
239 afb86b2c 2022-09-23 op if (n >= sizeof(pr->pr_conf.stylesheet))
240 afb86b2c 2022-09-23 op yyerror("stylesheet path too long!");
245 26cd3e9d 2022-09-23 op proxyport : /* empty */ {
246 26cd3e9d 2022-09-23 op strlcpy(pr->pr_conf.proxy_port, "1965",
247 26cd3e9d 2022-09-23 op sizeof(pr->pr_conf.proxy_port));
249 26cd3e9d 2022-09-23 op | PORT port {
253 26cd3e9d 2022-09-23 op len = sizeof(pr->pr_conf.proxy_port);
254 26cd3e9d 2022-09-23 op n = snprintf(pr->pr_conf.proxy_port, len, "%lld", $2);
255 26cd3e9d 2022-09-23 op if (n < 0 || (size_t)n >= len)
256 26cd3e9d 2022-09-23 op fatal("port number too long?");
259 b0a6bcf7 2022-09-13 op port : NUMBER {
260 b0a6bcf7 2022-09-13 op if ($1 <= 0 || $1 > (int)USHRT_MAX) {
261 b0a6bcf7 2022-09-13 op yyerror("invalid port: %lld", $1);
269 b0a6bcf7 2022-09-13 op if ((val = getservice($1)) == -1) {
270 b0a6bcf7 2022-09-13 op yyerror("invalid port: %s", $1);
279 b0a6bcf7 2022-09-13 op string : STRING string {
280 b0a6bcf7 2022-09-13 op if (asprintf(&$$, "%s%s", $1, $2) == -1)
281 b0a6bcf7 2022-09-13 op fatal("asprintf string");
288 b0a6bcf7 2022-09-13 op optnl : '\n' optnl
292 b0a6bcf7 2022-09-13 op nl : '\n' optnl
297 b0a6bcf7 2022-09-13 op struct keywords {
298 b0a6bcf7 2022-09-13 op const char *k_name;
303 b0a6bcf7 2022-09-13 op yyerror(const char *fmt, ...)
308 b0a6bcf7 2022-09-13 op file->errors++;
309 b0a6bcf7 2022-09-13 op va_start(ap, fmt);
310 b0a6bcf7 2022-09-13 op if (vasprintf(&msg, fmt, ap) == -1)
311 b0a6bcf7 2022-09-13 op fatal("yyerror vasprintf");
313 b0a6bcf7 2022-09-13 op log_warnx("%s:%d: %s", file->name, yylval.lineno, msg);
319 b0a6bcf7 2022-09-13 op kw_cmp(const void *k, const void *e)
321 b0a6bcf7 2022-09-13 op return (strcmp(k, ((const struct keywords *)e)->k_name));
325 b0a6bcf7 2022-09-13 op lookup(char *s)
327 b0a6bcf7 2022-09-13 op /* this has to be sorted always */
328 b0a6bcf7 2022-09-13 op static const struct keywords keywords[] = {
329 b0a6bcf7 2022-09-13 op { "chroot", CHROOT },
330 b0a6bcf7 2022-09-13 op { "hostname", HOSTNAME },
331 b0a6bcf7 2022-09-13 op { "include", INCLUDE },
332 b0a6bcf7 2022-09-13 op { "port", PORT },
333 b0a6bcf7 2022-09-13 op { "prefork", PREFORK },
334 b0a6bcf7 2022-09-13 op { "proxy", PROXY },
335 b0a6bcf7 2022-09-13 op { "source", SOURCE },
336 b0a6bcf7 2022-09-13 op { "stylesheet", STYLESHEET},
338 b0a6bcf7 2022-09-13 op const struct keywords *p;
340 b0a6bcf7 2022-09-13 op p = bsearch(s, keywords, nitems(keywords), sizeof(keywords[0]),
344 b0a6bcf7 2022-09-13 op return (p->k_val);
346 b0a6bcf7 2022-09-13 op return (STRING);
349 b0a6bcf7 2022-09-13 op #define START_EXPAND 1
350 b0a6bcf7 2022-09-13 op #define DONE_EXPAND 2
352 b0a6bcf7 2022-09-13 op static int expanding;
360 b0a6bcf7 2022-09-13 op if (file->ungetpos > 0)
361 b0a6bcf7 2022-09-13 op c = file->ungetbuf[--file->ungetpos];
363 b0a6bcf7 2022-09-13 op c = getc(file->stream);
365 b0a6bcf7 2022-09-13 op if (c == START_EXPAND)
366 b0a6bcf7 2022-09-13 op expanding = 1;
367 b0a6bcf7 2022-09-13 op else if (c == DONE_EXPAND)
368 b0a6bcf7 2022-09-13 op expanding = 0;
376 b0a6bcf7 2022-09-13 op lgetc(int quotec)
380 b0a6bcf7 2022-09-13 op if (quotec) {
381 b0a6bcf7 2022-09-13 op if ((c = igetc()) == EOF) {
382 b0a6bcf7 2022-09-13 op yyerror("reached end of file while parsing "
383 b0a6bcf7 2022-09-13 op "quoted string");
384 b0a6bcf7 2022-09-13 op if (file == topfile || popfile() == EOF)
385 b0a6bcf7 2022-09-13 op return (EOF);
386 b0a6bcf7 2022-09-13 op return (quotec);
391 b0a6bcf7 2022-09-13 op while ((c = igetc()) == '\\') {
392 b0a6bcf7 2022-09-13 op next = igetc();
393 b0a6bcf7 2022-09-13 op if (next != '\n') {
397 b0a6bcf7 2022-09-13 op yylval.lineno = file->lineno;
398 b0a6bcf7 2022-09-13 op file->lineno++;
400 b0a6bcf7 2022-09-13 op if (c == '\t' || c == ' ') {
401 b0a6bcf7 2022-09-13 op /* Compress blanks to a single space. */
403 b0a6bcf7 2022-09-13 op c = getc(file->stream);
404 b0a6bcf7 2022-09-13 op } while (c == '\t' || c == ' ');
405 b0a6bcf7 2022-09-13 op ungetc(c, file->stream);
409 b0a6bcf7 2022-09-13 op if (c == EOF) {
411 b0a6bcf7 2022-09-13 op * Fake EOL when hit EOF for the first time. This gets line
412 b0a6bcf7 2022-09-13 op * count right if last line in included file is syntactically
413 b0a6bcf7 2022-09-13 op * invalid and has no newline.
415 b0a6bcf7 2022-09-13 op if (file->eof_reached == 0) {
416 b0a6bcf7 2022-09-13 op file->eof_reached = 1;
417 b0a6bcf7 2022-09-13 op return ('\n');
419 b0a6bcf7 2022-09-13 op while (c == EOF) {
420 b0a6bcf7 2022-09-13 op if (file == topfile || popfile() == EOF)
421 b0a6bcf7 2022-09-13 op return (EOF);
429 b0a6bcf7 2022-09-13 op lungetc(int c)
431 b0a6bcf7 2022-09-13 op if (c == EOF)
434 b0a6bcf7 2022-09-13 op if (file->ungetpos >= file->ungetsize) {
435 b0a6bcf7 2022-09-13 op void *p = reallocarray(file->ungetbuf, file->ungetsize, 2);
436 b0a6bcf7 2022-09-13 op if (p == NULL)
437 b0a6bcf7 2022-09-13 op err(1, "%s", __func__);
438 b0a6bcf7 2022-09-13 op file->ungetbuf = p;
439 b0a6bcf7 2022-09-13 op file->ungetsize *= 2;
441 b0a6bcf7 2022-09-13 op file->ungetbuf[file->ungetpos++] = c;
445 b0a6bcf7 2022-09-13 op findeol(void)
449 b0a6bcf7 2022-09-13 op /* skip to either EOF or the first real EOL */
451 b0a6bcf7 2022-09-13 op c = lgetc(0);
452 b0a6bcf7 2022-09-13 op if (c == '\n') {
453 b0a6bcf7 2022-09-13 op file->lineno++;
456 b0a6bcf7 2022-09-13 op if (c == EOF)
459 b0a6bcf7 2022-09-13 op return (ERROR);
465 b0a6bcf7 2022-09-13 op char buf[8096];
466 b0a6bcf7 2022-09-13 op char *p, *val;
467 b0a6bcf7 2022-09-13 op int quotec, next, c;
472 b0a6bcf7 2022-09-13 op while ((c = lgetc(0)) == ' ' || c == '\t')
473 b0a6bcf7 2022-09-13 op ; /* nothing */
475 b0a6bcf7 2022-09-13 op yylval.lineno = file->lineno;
476 b0a6bcf7 2022-09-13 op if (c == '#')
477 b0a6bcf7 2022-09-13 op while ((c = lgetc(0)) != '\n' && c != EOF)
478 b0a6bcf7 2022-09-13 op ; /* nothing */
479 b0a6bcf7 2022-09-13 op if (c == '$' && !expanding) {
481 b0a6bcf7 2022-09-13 op if ((c = lgetc(0)) == EOF)
484 b0a6bcf7 2022-09-13 op if (p + 1 >= buf + sizeof(buf) - 1) {
485 b0a6bcf7 2022-09-13 op yyerror("string too long");
486 b0a6bcf7 2022-09-13 op return (findeol());
488 b0a6bcf7 2022-09-13 op if (isalnum(c) || c == '_') {
496 b0a6bcf7 2022-09-13 op val = symget(buf);
497 b0a6bcf7 2022-09-13 op if (val == NULL) {
498 b0a6bcf7 2022-09-13 op yyerror("macro '%s' not defined", buf);
499 b0a6bcf7 2022-09-13 op return (findeol());
501 b0a6bcf7 2022-09-13 op p = val + strlen(val) - 1;
502 b0a6bcf7 2022-09-13 op lungetc(DONE_EXPAND);
503 b0a6bcf7 2022-09-13 op while (p >= val) {
504 b0a6bcf7 2022-09-13 op lungetc((unsigned char)*p);
507 b0a6bcf7 2022-09-13 op lungetc(START_EXPAND);
516 b0a6bcf7 2022-09-13 op if ((c = lgetc(quotec)) == EOF)
518 b0a6bcf7 2022-09-13 op if (c == '\n') {
519 b0a6bcf7 2022-09-13 op file->lineno++;
521 b0a6bcf7 2022-09-13 op } else if (c == '\\') {
522 b0a6bcf7 2022-09-13 op if ((next = lgetc(quotec)) == EOF)
524 b0a6bcf7 2022-09-13 op if (next == quotec || next == ' ' ||
525 b0a6bcf7 2022-09-13 op next == '\t')
527 b0a6bcf7 2022-09-13 op else if (next == '\n') {
528 b0a6bcf7 2022-09-13 op file->lineno++;
531 b0a6bcf7 2022-09-13 op lungetc(next);
532 b0a6bcf7 2022-09-13 op } else if (c == quotec) {
535 b0a6bcf7 2022-09-13 op } else if (c == '\0') {
536 b0a6bcf7 2022-09-13 op yyerror("syntax error");
537 b0a6bcf7 2022-09-13 op return (findeol());
539 b0a6bcf7 2022-09-13 op if (p + 1 >= buf + sizeof(buf) - 1) {
540 b0a6bcf7 2022-09-13 op yyerror("string too long");
541 b0a6bcf7 2022-09-13 op return (findeol());
545 b0a6bcf7 2022-09-13 op yylval.v.string = strdup(buf);
546 b0a6bcf7 2022-09-13 op if (yylval.v.string == NULL)
547 b0a6bcf7 2022-09-13 op fatal("yylex: strdup");
548 b0a6bcf7 2022-09-13 op return (STRING);
551 b0a6bcf7 2022-09-13 op #define allowed_to_end_number(x) \
552 b0a6bcf7 2022-09-13 op (isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')
554 b0a6bcf7 2022-09-13 op if (c == '-' || isdigit(c)) {
557 b0a6bcf7 2022-09-13 op if ((size_t)(p-buf) >= sizeof(buf)) {
558 b0a6bcf7 2022-09-13 op yyerror("string too long");
559 b0a6bcf7 2022-09-13 op return (findeol());
561 b0a6bcf7 2022-09-13 op } while ((c = lgetc(0)) != EOF && isdigit(c));
563 b0a6bcf7 2022-09-13 op if (p == buf + 1 && buf[0] == '-')
564 b0a6bcf7 2022-09-13 op goto nodigits;
565 b0a6bcf7 2022-09-13 op if (c == EOF || allowed_to_end_number(c)) {
566 b0a6bcf7 2022-09-13 op const char *errstr = NULL;
569 b0a6bcf7 2022-09-13 op yylval.v.number = strtonum(buf, LLONG_MIN,
570 b0a6bcf7 2022-09-13 op LLONG_MAX, &errstr);
571 b0a6bcf7 2022-09-13 op if (errstr) {
572 b0a6bcf7 2022-09-13 op yyerror("\"%s\" invalid number: %s",
573 b0a6bcf7 2022-09-13 op buf, errstr);
574 b0a6bcf7 2022-09-13 op return (findeol());
576 b0a6bcf7 2022-09-13 op return (NUMBER);
579 b0a6bcf7 2022-09-13 op while (p > buf + 1)
580 b0a6bcf7 2022-09-13 op lungetc((unsigned char)*--p);
581 b0a6bcf7 2022-09-13 op c = (unsigned char)*--p;
582 b0a6bcf7 2022-09-13 op if (c == '-')
587 b0a6bcf7 2022-09-13 op #define allowed_in_string(x) \
588 b0a6bcf7 2022-09-13 op (isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
589 b0a6bcf7 2022-09-13 op x != '{' && x != '}' && \
590 b0a6bcf7 2022-09-13 op x != '!' && x != '=' && x != '#' && \
593 b0a6bcf7 2022-09-13 op if (isalnum(c) || c == ':' || c == '_' || c == '/') {
596 b0a6bcf7 2022-09-13 op if ((size_t)(p-buf) >= sizeof(buf)) {
597 b0a6bcf7 2022-09-13 op yyerror("string too long");
598 b0a6bcf7 2022-09-13 op return (findeol());
600 b0a6bcf7 2022-09-13 op } while ((c = lgetc(0)) != EOF && (allowed_in_string(c)));
603 b0a6bcf7 2022-09-13 op if ((token = lookup(buf)) == STRING)
604 b0a6bcf7 2022-09-13 op if ((yylval.v.string = strdup(buf)) == NULL)
605 b0a6bcf7 2022-09-13 op fatal("yylex: strdup");
606 b0a6bcf7 2022-09-13 op return (token);
608 b0a6bcf7 2022-09-13 op if (c == '\n') {
609 b0a6bcf7 2022-09-13 op yylval.lineno = file->lineno;
610 b0a6bcf7 2022-09-13 op file->lineno++;
612 b0a6bcf7 2022-09-13 op if (c == EOF)
617 b0a6bcf7 2022-09-13 op struct file *
618 b0a6bcf7 2022-09-13 op pushfile(const char *name, int secret)
620 b0a6bcf7 2022-09-13 op struct file *nfile;
622 b0a6bcf7 2022-09-13 op if ((nfile = calloc(1, sizeof(struct file))) == NULL) {
623 b0a6bcf7 2022-09-13 op log_warn("%s", __func__);
624 b0a6bcf7 2022-09-13 op return (NULL);
626 b0a6bcf7 2022-09-13 op if ((nfile->name = strdup(name)) == NULL) {
627 b0a6bcf7 2022-09-13 op log_warn("%s", __func__);
629 b0a6bcf7 2022-09-13 op return (NULL);
631 b0a6bcf7 2022-09-13 op if ((nfile->stream = fopen(nfile->name, "r")) == NULL) {
632 b0a6bcf7 2022-09-13 op free(nfile->name);
634 b0a6bcf7 2022-09-13 op return (NULL);
636 b0a6bcf7 2022-09-13 op nfile->lineno = TAILQ_EMPTY(&files) ? 1 : 0;
637 b0a6bcf7 2022-09-13 op nfile->ungetsize = 16;
638 b0a6bcf7 2022-09-13 op nfile->ungetbuf = malloc(nfile->ungetsize);
639 b0a6bcf7 2022-09-13 op if (nfile->ungetbuf == NULL) {
640 b0a6bcf7 2022-09-13 op log_warn("%s", __func__);
641 b0a6bcf7 2022-09-13 op fclose(nfile->stream);
642 b0a6bcf7 2022-09-13 op free(nfile->name);
644 b0a6bcf7 2022-09-13 op return (NULL);
646 b0a6bcf7 2022-09-13 op TAILQ_INSERT_TAIL(&files, nfile, entry);
647 b0a6bcf7 2022-09-13 op return (nfile);
651 b0a6bcf7 2022-09-13 op popfile(void)
653 b0a6bcf7 2022-09-13 op struct file *prev;
655 b0a6bcf7 2022-09-13 op if ((prev = TAILQ_PREV(file, files, entry)) != NULL)
656 b0a6bcf7 2022-09-13 op prev->errors += file->errors;
658 b0a6bcf7 2022-09-13 op TAILQ_REMOVE(&files, file, entry);
659 b0a6bcf7 2022-09-13 op fclose(file->stream);
660 b0a6bcf7 2022-09-13 op free(file->name);
661 b0a6bcf7 2022-09-13 op free(file->ungetbuf);
664 b0a6bcf7 2022-09-13 op return (file ? 0 : EOF);
668 b0a6bcf7 2022-09-13 op parse_config(const char *filename, struct galileo *env)
670 b0a6bcf7 2022-09-13 op struct sym *sym, *next;
675 b0a6bcf7 2022-09-13 op n = strlcpy(conf->sc_conffile, filename, sizeof(conf->sc_conffile));
676 b0a6bcf7 2022-09-13 op if (n >= sizeof(conf->sc_conffile)) {
677 b0a6bcf7 2022-09-13 op log_warn("path too long: %s", filename);
681 b0a6bcf7 2022-09-13 op if ((file = pushfile(filename, 0)) == NULL) {
682 b0a6bcf7 2022-09-13 op log_warn("failed to open %s", filename);
685 b0a6bcf7 2022-09-13 op topfile = file;
686 b0a6bcf7 2022-09-13 op setservent(1);
689 b0a6bcf7 2022-09-13 op errors = file->errors;
692 b0a6bcf7 2022-09-13 op endservent();
694 b0a6bcf7 2022-09-13 op /* Free macros and check which have not been used. */
695 b0a6bcf7 2022-09-13 op TAILQ_FOREACH_SAFE(sym, &symhead, entry, next) {
696 b0a6bcf7 2022-09-13 op if (!sym->used)
697 b0a6bcf7 2022-09-13 op fprintf(stderr, "warning: macro `%s' not used\n",
699 b0a6bcf7 2022-09-13 op if (!sym->persist) {
700 b0a6bcf7 2022-09-13 op free(sym->nam);
701 b0a6bcf7 2022-09-13 op free(sym->val);
702 b0a6bcf7 2022-09-13 op TAILQ_REMOVE(&symhead, sym, entry);
714 b0a6bcf7 2022-09-13 op symset(const char *nam, const char *val, int persist)
716 b0a6bcf7 2022-09-13 op struct sym *sym;
718 b0a6bcf7 2022-09-13 op TAILQ_FOREACH(sym, &symhead, entry) {
719 b0a6bcf7 2022-09-13 op if (strcmp(nam, sym->nam) == 0)
723 b0a6bcf7 2022-09-13 op if (sym != NULL) {
724 b0a6bcf7 2022-09-13 op if (sym->persist == 1)
727 b0a6bcf7 2022-09-13 op free(sym->nam);
728 b0a6bcf7 2022-09-13 op free(sym->val);
729 b0a6bcf7 2022-09-13 op TAILQ_REMOVE(&symhead, sym, entry);
733 b0a6bcf7 2022-09-13 op if ((sym = calloc(1, sizeof(*sym))) == NULL)
736 b0a6bcf7 2022-09-13 op sym->nam = strdup(nam);
737 b0a6bcf7 2022-09-13 op if (sym->nam == NULL) {
741 b0a6bcf7 2022-09-13 op sym->val = strdup(val);
742 b0a6bcf7 2022-09-13 op if (sym->val == NULL) {
743 b0a6bcf7 2022-09-13 op free(sym->nam);
747 b0a6bcf7 2022-09-13 op sym->used = 0;
748 b0a6bcf7 2022-09-13 op sym->persist = persist;
749 b0a6bcf7 2022-09-13 op TAILQ_INSERT_TAIL(&symhead, sym, entry);
754 b0a6bcf7 2022-09-13 op cmdline_symset(char *s)
756 b0a6bcf7 2022-09-13 op char *sym, *val;
759 b0a6bcf7 2022-09-13 op if ((val = strrchr(s, '=')) == NULL)
761 b0a6bcf7 2022-09-13 op sym = strndup(s, val - s);
762 b0a6bcf7 2022-09-13 op if (sym == NULL)
763 b0a6bcf7 2022-09-13 op fatal("%s: strndup", __func__);
764 b0a6bcf7 2022-09-13 op ret = symset(sym, val + 1, 1);
767 b0a6bcf7 2022-09-13 op return (ret);
771 b0a6bcf7 2022-09-13 op symget(const char *nam)
773 b0a6bcf7 2022-09-13 op struct sym *sym;
775 b0a6bcf7 2022-09-13 op TAILQ_FOREACH(sym, &symhead, entry) {
776 b0a6bcf7 2022-09-13 op if (strcmp(nam, sym->nam) == 0) {
777 b0a6bcf7 2022-09-13 op sym->used = 1;
778 b0a6bcf7 2022-09-13 op return (sym->val);
781 b0a6bcf7 2022-09-13 op return (NULL);
785 b0a6bcf7 2022-09-13 op getservice(const char *n)
787 b0a6bcf7 2022-09-13 op struct servent *s;
788 b0a6bcf7 2022-09-13 op const char *errstr;
789 b0a6bcf7 2022-09-13 op long long llval;
791 b0a6bcf7 2022-09-13 op llval = strtonum(n, 0, UINT16_MAX, &errstr);
792 b0a6bcf7 2022-09-13 op if (errstr) {
793 b0a6bcf7 2022-09-13 op s = getservbyname(n, "tcp");
794 b0a6bcf7 2022-09-13 op if (s == NULL)
795 b0a6bcf7 2022-09-13 op s = getservbyname(n, "udp");
796 b0a6bcf7 2022-09-13 op if (s == NULL)
798 b0a6bcf7 2022-09-13 op return (ntohs(s->s_port));
801 b0a6bcf7 2022-09-13 op return ((unsigned short)llval);