2 * Copyright (c) 2020 Tracey Emery <tracey@openbsd.org>
3 * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
4 * Copyright (c) 2004 Ryan McBride <mcbride@openbsd.org>
5 * Copyright (c) 2002, 2003, 2004 Henning Brauer <henning@openbsd.org>
6 * Copyright (c) 2001 Markus Friedl. All rights reserved.
7 * Copyright (c) 2001 Daniel Hartmeier. All rights reserved.
8 * Copyright (c) 2001 Theo de Raadt. All rights reserved.
10 * Permission to use, copy, modify, and distribute this software for any
11 * purpose with or without fee is hereby granted, provided that the above
12 * copyright notice and this permission notice appear in all copies.
14 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
15 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
16 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
17 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
18 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
19 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
20 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 #include <sys/types.h>
25 #include <sys/queue.h>
26 #include <sys/socket.h>
29 #include <netinet/in.h>
31 #include <arpa/inet.h>
46 #include "got_error.h"
49 TAILQ_HEAD(files, file) files = TAILQ_HEAD_INITIALIZER(files);
51 TAILQ_ENTRY(file) entry;
60 static const struct got_error* pushfile(struct file**, const char *);
64 int yyerror(const char *, ...)
65 __attribute__((__format__ (printf, 1, 2)))
66 __attribute__((__nonnull__ (1)));
67 int kw_cmp(const void *, const void *);
74 TAILQ_HEAD(symhead, sym) symhead = TAILQ_HEAD_INITIALIZER(symhead);
76 TAILQ_ENTRY(sym) entry;
83 int symset(const char *, const char *, int);
84 char *symget(const char *);
86 const struct got_error* gerror = NULL;
87 struct got_config_list_entry *gotconfig;
88 struct got_config_list got_config_list;
89 static const struct got_error* new_remote(struct got_config_list_entry **);
102 %token REMOTE REPOSITORY SERVER PROTOCOL USER
103 %token <v.string> STRING
104 %token <v.number> NUMBER
108 grammar : /* empty */
110 | grammar remote '\n'
112 remoteopts2 : remoteopts2 remoteopts1 nl
115 remoteopts1 : REPOSITORY STRING {
116 gotconfig->repository = strdup($2);
117 if (gotconfig->repository == NULL) {
125 gotconfig->server = strdup($2);
126 if (gotconfig->server == NULL) {
134 gotconfig->protocol = strdup($2);
135 if (gotconfig->protocol == NULL) {
143 gotconfig->user = strdup($2);
144 if (gotconfig->user == NULL) {
152 remote : REMOTE STRING {
153 static const struct got_error* error;
155 error = new_remote(&gotconfig);
158 yyerror("%s", error->msg);
161 gotconfig->remote = strdup($2);
162 if (gotconfig->remote == NULL) {
168 } '{' optnl remoteopts2 '}' {
169 TAILQ_INSERT_TAIL(&got_config_list, gotconfig, entry);
185 yyerror(const char *fmt, ...)
192 if (vasprintf(&msg, fmt, ap) == -1) {
193 gerror = got_error_from_errno("vasprintf");
197 if (asprintf(&err, "%s:%d: %s", file->name, yylval.lineno, msg) == -1) {
198 gerror = got_error_from_errno("asprintf");
201 gerror = got_error_msg(GOT_ERR_PARSE_Y_YY, strdup(err));
208 kw_cmp(const void *k, const void *e)
210 return (strcmp(k, ((const struct keywords *)e)->k_name));
216 /* This has to be sorted always. */
217 static const struct keywords keywords[] = {
218 {"protocol", PROTOCOL},
220 {"repository", REPOSITORY},
224 const struct keywords *p;
226 p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
227 sizeof(keywords[0]), kw_cmp);
235 #define START_EXPAND 1
236 #define DONE_EXPAND 2
238 static int expanding;
246 if (file->ungetpos > 0)
247 c = file->ungetbuf[--file->ungetpos];
249 c = getc(file->stream);
251 if (c == START_EXPAND)
253 else if (c == DONE_EXPAND)
267 if ((c = igetc()) == EOF) {
268 yyerror("reached end of file while parsing "
270 if (file == topfile || popfile() == EOF)
277 while ((c = igetc()) == '\\') {
283 yylval.lineno = file->lineno;
289 * Fake EOL when hit EOF for the first time. This gets line
290 * count right if last line in included file is syntactically
291 * invalid and has no newline.
293 if (file->eof_reached == 0) {
294 file->eof_reached = 1;
298 if (file == topfile || popfile() == EOF)
312 if (file->ungetpos >= file->ungetsize) {
313 void *p = reallocarray(file->ungetbuf, file->ungetsize, 2);
315 err(1, "%s", __func__);
317 file->ungetsize *= 2;
319 file->ungetbuf[file->ungetpos++] = c;
327 /* Skip to either EOF or the first real EOL. */
343 unsigned char buf[8096];
344 unsigned char *p, *val;
350 while ((c = lgetc(0)) == ' ' || c == '\t')
353 yylval.lineno = file->lineno;
355 while ((c = lgetc(0)) != '\n' && c != EOF)
357 if (c == '$' && !expanding) {
359 if ((c = lgetc(0)) == EOF)
362 if (p + 1 >= buf + sizeof(buf) - 1) {
363 yyerror("string too long");
366 if (isalnum(c) || c == '_') {
376 yyerror("macro '%s' not defined", buf);
379 p = val + strlen(val) - 1;
380 lungetc(DONE_EXPAND);
385 lungetc(START_EXPAND);
394 if ((c = lgetc(quotec)) == EOF)
399 } else if (c == '\\') {
400 if ((next = lgetc(quotec)) == EOF)
402 if (next == quotec || c == ' ' || c == '\t')
404 else if (next == '\n') {
409 } else if (c == quotec) {
412 } else if (c == '\0') {
413 yyerror("syntax error");
416 if (p + 1 >= buf + sizeof(buf) - 1) {
417 yyerror("string too long");
422 yylval.v.string = strdup(buf);
423 if (yylval.v.string == NULL)
424 err(1, "%s", __func__);
428 #define allowed_to_end_number(x) \
429 (isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')
431 if (c == '-' || isdigit(c)) {
434 if ((unsigned)(p-buf) >= sizeof(buf)) {
435 yyerror("string too long");
438 } while ((c = lgetc(0)) != EOF && isdigit(c));
440 if (p == buf + 1 && buf[0] == '-')
442 if (c == EOF || allowed_to_end_number(c)) {
443 const char *errstr = NULL;
446 yylval.v.number = strtonum(buf, LLONG_MIN,
449 yyerror("\"%s\" invalid number: %s",
464 #define allowed_in_string(x) \
465 (isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
466 x != '{' && x != '}' && \
467 x != '!' && x != '=' && x != '#' && \
470 if (isalnum(c) || c == ':' || c == '_') {
473 if ((unsigned)(p-buf) >= sizeof(buf)) {
474 yyerror("string too long");
477 } while ((c = lgetc(0)) != EOF && (allowed_in_string(c)));
480 if ((token = lookup(buf)) == STRING)
481 if ((yylval.v.string = strdup(buf)) == NULL)
482 err(1, "%s", __func__);
486 yylval.lineno = file->lineno;
494 static const struct got_error*
495 pushfile(struct file **nfile, const char *name)
497 const struct got_error* error = NULL;
499 if (((*nfile) = calloc(1, sizeof(struct file))) == NULL)
500 return got_error_from_errno2(__func__, "calloc");
501 if (((*nfile)->name = strdup(name)) == NULL) {
503 return got_error_from_errno2(__func__, "strdup");
505 if (((*nfile)->stream = fopen((*nfile)->name, "r")) == NULL) {
507 if (asprintf(&msg, "%s", (*nfile)->name) == -1)
508 return got_error_from_errno("asprintf");
509 error = got_error_msg(GOT_ERR_NO_CONFIG_FILE, msg);
510 free((*nfile)->name);
515 (*nfile)->lineno = TAILQ_EMPTY(&files) ? 1 : 0;
516 (*nfile)->ungetsize = 16;
517 (*nfile)->ungetbuf = malloc((*nfile)->ungetsize);
518 if ((*nfile)->ungetbuf == NULL) {
519 fclose((*nfile)->stream);
520 free((*nfile)->name);
522 return got_error_from_errno2(__func__, "malloc");
524 TAILQ_INSERT_TAIL(&files, (*nfile), entry);
528 static const struct got_error*
529 new_remote(struct got_config_list_entry **gotconfig) {
530 const struct got_error* error = NULL;
532 if (((*gotconfig) = calloc(1, sizeof(struct got_config_list_entry))) ==
534 error = got_error_from_errno("calloc");
541 struct file *prev = NULL;
543 TAILQ_REMOVE(&files, file, entry);
544 fclose(file->stream);
546 free(file->ungetbuf);
549 return (file ? 0 : EOF);
552 const struct got_error*
553 parse_got_config(struct got_config_list **conf_list, char *filename)
555 struct sym *sym, *next;
560 * We don't require that gotconfig exists
561 * So, null gerror and goto done
563 gerror = pushfile(&file, filename);
564 if (gerror && gerror->code == GOT_ERR_NO_CONFIG_FILE) {
571 TAILQ_INIT(&got_config_list);
577 /* Free macros and check which have not been used. */
578 TAILQ_FOREACH_SAFE(sym, &symhead, entry, next) {
582 TAILQ_REMOVE(&symhead, sym, entry);
587 *conf_list = &got_config_list;
592 symset(const char *nam, const char *val, int persist)
596 TAILQ_FOREACH(sym, &symhead, entry) {
597 if (strcmp(nam, sym->nam) == 0)
602 if (sym->persist == 1)
607 TAILQ_REMOVE(&symhead, sym, entry);
611 if ((sym = calloc(1, sizeof(*sym))) == NULL)
614 sym->nam = strdup(nam);
615 if (sym->nam == NULL) {
619 sym->val = strdup(val);
620 if (sym->val == NULL) {
626 sym->persist = persist;
627 TAILQ_INSERT_TAIL(&symhead, sym, entry);
632 cmdline_symset(char *s)
638 if ((val = strrchr(s, '=')) == NULL)
641 len = strlen(s) - strlen(val) + 1;
642 if ((sym = malloc(len)) == NULL)
643 errx(1, "cmdline_symset: malloc");
645 strlcpy(sym, s, len);
647 ret = symset(sym, val + 1, 1);
654 symget(const char *nam)
658 TAILQ_FOREACH(sym, &symhead, entry) {
659 if (strcmp(nam, sym->nam) == 0) {