2 * Copyright (c) 2020, 2021 Tracey Emery <tracey@openbsd.org>
3 * Copyright (c) 2020 Stefan Sperling <stsp@openbsd.org>
4 * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
5 * Copyright (c) 2004 Ryan McBride <mcbride@openbsd.org>
6 * Copyright (c) 2002, 2003, 2004 Henning Brauer <henning@openbsd.org>
7 * Copyright (c) 2001 Markus Friedl. All rights reserved.
8 * Copyright (c) 2001 Daniel Hartmeier. All rights reserved.
9 * Copyright (c) 2001 Theo de Raadt. All rights reserved.
11 * Permission to use, copy, modify, and distribute this software for any
12 * purpose with or without fee is hereby granted, provided that the above
13 * copyright notice and this permission notice appear in all copies.
15 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
16 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
17 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
18 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
20 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
21 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 #include <sys/types.h>
26 #include <sys/queue.h>
39 #include "got_compat.h"
41 #include "got_error.h"
42 #include "gotconfig.h"
53 static const struct got_error* newfile(struct file**, const char *, int *);
54 static void closefile(struct file *);
57 int yyerror(const char *, ...)
58 __attribute__((__format__ (printf, 1, 2)))
59 __attribute__((__nonnull__ (1)));
60 int kw_cmp(const void *, const void *);
66 static int parseport(char *, long long *);
68 TAILQ_HEAD(symhead, sym) symhead = TAILQ_HEAD_INITIALIZER(symhead);
70 TAILQ_ENTRY(sym) entry;
77 int symset(const char *, const char *, int);
78 int cmdline_symset(char *);
79 char *symget(const char *);
81 static int atoul(char *, u_long *);
83 static const struct got_error* gerror;
84 static struct gotconfig_remote_repo *remote;
85 static struct gotconfig gotconfig;
86 static const struct got_error* new_remote(struct gotconfig_remote_repo **);
87 static const struct got_error* new_fetch_config(struct fetch_config **);
88 static const struct got_error* new_send_config(struct send_config **);
94 struct node_branch *branch;
100 #if defined(__APPLE__) && !defined(YYSTYPE)
101 #warning "Setting YYSTYPE - is GNU Bison installed?"
102 #define YYSTYPE YYSTYPE
107 %token REMOTE REPOSITORY SERVER PORT PROTOCOL MIRROR_REFERENCES BRANCH
108 %token AUTHOR ALLOWED_SIGNERS REVOKED_SIGNERS SIGNER_ID FETCH_ALL_BRANCHES
109 %token REFERENCE FETCH SEND
110 %token <v.string> STRING
111 %token <v.number> NUMBER
112 %type <v.number> boolean portplain
113 %type <v.string> numberstring
114 %type <v.branch> branch xbranch branch_list
115 %type <v.ref> ref xref ref_list
119 grammar : /* empty */
121 | grammar author '\n'
122 | grammar remote '\n'
123 | grammar allowed_signers '\n'
124 | grammar revoked_signers '\n'
125 | grammar signer_id '\n'
128 if (strcasecmp($1, "true") == 0 ||
129 strcasecmp($1, "yes") == 0)
131 else if (strcasecmp($1, "false") == 0 ||
132 strcasecmp($1, "no") == 0)
135 yyerror("invalid boolean value '%s'", $1);
142 numberstring : NUMBER {
144 if (asprintf(&s, "%lld", $1) == -1) {
145 yyerror("string: asprintf");
152 portplain : numberstring {
153 if (parseport($1, &$$) == -1) {
160 branch : /* empty */ { $$ = NULL; }
161 | xbranch { $$ = $1; }
162 | '{' optnl branch_list '}' { $$ = $3; }
165 $$ = calloc(1, sizeof(struct node_branch));
170 $$->branch_name = $1;
174 branch_list : xbranch optnl { $$ = $1; }
175 | branch_list comma xbranch optnl {
181 ref : /* empty */ { $$ = NULL; }
183 | '{' optnl ref_list '}' { $$ = $3; }
186 $$ = calloc(1, sizeof(struct node_ref));
195 ref_list : xref optnl { $$ = $1; }
196 | ref_list comma xref optnl {
202 remoteopts2 : remoteopts2 remoteopts1 nl
205 remoteopts1 : REPOSITORY STRING {
206 remote->repository = $2;
212 remote->protocol = $2;
214 | MIRROR_REFERENCES boolean {
215 remote->mirror_references = $2;
217 | FETCH_ALL_BRANCHES boolean {
218 remote->fetch_all_branches = $2;
227 remote->fetch_ref = $2;
230 static const struct got_error* error;
232 if (remote->fetch_config != NULL) {
233 yyerror("fetch block already exists");
236 error = new_fetch_config(&remote->fetch_config);
238 yyerror("%s", error->msg);
241 } '{' optnl fetchempty '}'
243 static const struct got_error* error;
245 if (remote->send_config != NULL) {
246 yyerror("send block already exists");
249 error = new_send_config(&remote->send_config);
251 yyerror("%s", error->msg);
254 } '{' optnl sendempty '}'
256 fetchempty : /* empty */
259 fetchopts2 : fetchopts2 fetchopts1 nl
262 fetchopts1 : REPOSITORY STRING {
263 remote->fetch_config->repository = $2;
266 remote->fetch_config->server = $2;
269 remote->fetch_config->protocol = $2;
272 remote->fetch_config->port = $2;
275 remote->fetch_config->branch = $2;
278 sendempty : /* empty */
281 sendopts2 : sendopts2 sendopts1 nl
284 sendopts1 : REPOSITORY STRING {
285 remote->send_config->repository = $2;
288 remote->send_config->server = $2;
291 remote->send_config->protocol = $2;
294 remote->send_config->port = $2;
297 remote->send_config->branch = $2;
300 remote : REMOTE STRING {
301 static const struct got_error* error;
303 error = new_remote(&remote);
306 yyerror("%s", error->msg);
310 } '{' optnl remoteopts2 '}' {
311 TAILQ_INSERT_TAIL(&gotconfig.remotes, remote, entry);
312 gotconfig.nremotes++;
315 author : AUTHOR STRING {
316 gotconfig.author = $2;
319 allowed_signers : ALLOWED_SIGNERS STRING {
320 gotconfig.allowed_signers_file = $2;
323 revoked_signers : REVOKED_SIGNERS STRING {
324 gotconfig.revoked_signers_file = $2;
327 signer_id : SIGNER_ID STRING {
328 gotconfig.signer_id = $2;
347 yyerror(const char *fmt, ...)
354 if (vasprintf(&msg, fmt, ap) == -1) {
355 gerror = got_error_from_errno("vasprintf");
359 if (asprintf(&err, "%s: line %d: %s", file->name, yylval.lineno,
361 gerror = got_error_from_errno("asprintf");
364 gerror = got_error_msg(GOT_ERR_PARSE_CONFIG, err);
369 kw_cmp(const void *k, const void *e)
371 return (strcmp(k, ((const struct keywords *)e)->k_name));
377 /* This has to be sorted always. */
378 static const struct keywords keywords[] = {
379 {"allowed_signers", ALLOWED_SIGNERS},
383 {"fetch-all-branches", FETCH_ALL_BRANCHES}, /* deprecated */
384 {"fetch_all_branches", FETCH_ALL_BRANCHES},
385 {"mirror-references", MIRROR_REFERENCES}, /* deprecated */
386 {"mirror_references", MIRROR_REFERENCES},
388 {"protocol", PROTOCOL},
389 {"reference", REFERENCE},
391 {"repository", REPOSITORY},
392 {"revoked_signers", REVOKED_SIGNERS},
395 {"signer_id", SIGNER_ID},
397 const struct keywords *p;
399 p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
400 sizeof(keywords[0]), kw_cmp);
408 #define START_EXPAND 1
409 #define DONE_EXPAND 2
411 static int expanding;
419 if (file->ungetpos > 0)
420 c = file->ungetbuf[--file->ungetpos];
422 c = getc(file->stream);
424 if (c == START_EXPAND)
426 else if (c == DONE_EXPAND)
442 yyerror("reached end of file while parsing "
455 yylval.lineno = file->lineno;
468 if (file->ungetpos >= file->ungetsize) {
469 void *p = reallocarray(file->ungetbuf, file->ungetsize, 2);
471 err(1, "%s", __func__);
473 file->ungetsize *= 2;
475 file->ungetbuf[file->ungetpos++] = c;
483 /* Skip to either EOF or the first real EOL. */
502 if (atoul(n, &ulval) == 0) {
503 if (ulval == 0 || ulval > 65535) {
504 yyerror("illegal port value %lu", ulval);
509 s = getservbyname(n, "tcp");
511 s = getservbyname(n, "udp");
513 yyerror("unknown port %s", n);
521 parseport(char *port, long long *pn)
523 if ((*pn = getservice(port)) == -1) {
542 while (c == ' ' || c == '\t')
543 c = lgetc(0); /* nothing */
545 yylval.lineno = file->lineno;
548 while (c != '\n' && c != EOF)
549 c = lgetc(0); /* nothing */
551 if (c == '$' && !expanding) {
557 if (p + 1 >= buf + sizeof(buf) - 1) {
558 yyerror("string too long");
561 if (isalnum(c) || c == '_') {
571 yyerror("macro '%s' not defined", buf);
574 p = val + strlen(val) - 1;
575 lungetc(DONE_EXPAND);
577 lungetc((unsigned char)*p);
580 lungetc(START_EXPAND);
595 } else if (c == '\\') {
596 next = lgetc(quotec);
599 if (next == quotec || c == ' ' || c == '\t')
601 else if (next == '\n') {
606 } else if (c == quotec) {
609 } else if (c == '\0') {
610 yyerror("syntax error");
613 if (p + 1 >= buf + sizeof(buf) - 1) {
614 yyerror("string too long");
619 yylval.v.string = strdup(buf);
620 if (yylval.v.string == NULL)
621 err(1, "%s", __func__);
625 #define allowed_to_end_number(x) \
626 (isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')
628 if (c == '-' || isdigit(c)) {
631 if ((size_t)(p-buf) >= sizeof(buf)) {
632 yyerror("string too long");
636 } while (c != EOF && isdigit(c));
638 if (p == buf + 1 && buf[0] == '-')
640 if (c == EOF || allowed_to_end_number(c)) {
641 const char *errstr = NULL;
644 yylval.v.number = strtonum(buf, LLONG_MIN,
647 yyerror("\"%s\" invalid number: %s",
655 lungetc((unsigned char)*--p);
656 c = (unsigned char)*--p;
662 #define allowed_in_string(x) \
663 (isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
664 x != '{' && x != '}' && \
665 x != '!' && x != '=' && x != '#' && \
668 if (isalnum(c) || c == ':' || c == '_') {
671 if ((size_t)(p-buf) >= sizeof(buf)) {
672 yyerror("string too long");
676 } while (c != EOF && (allowed_in_string(c)));
680 if (token == STRING) {
681 yylval.v.string = strdup(buf);
682 if (yylval.v.string == NULL)
683 err(1, "%s", __func__);
688 yylval.lineno = file->lineno;
696 static const struct got_error*
697 newfile(struct file **nfile, const char *filename, int *fd)
699 const struct got_error* error = NULL;
701 (*nfile) = calloc(1, sizeof(struct file));
702 if ((*nfile) == NULL)
703 return got_error_from_errno("calloc");
704 (*nfile)->stream = fdopen(*fd, "r");
705 if ((*nfile)->stream == NULL) {
706 error = got_error_from_errno("fdopen");
710 *fd = -1; /* Stream owns the file descriptor now. */
711 (*nfile)->name = filename;
712 (*nfile)->lineno = 1;
713 (*nfile)->ungetsize = 16;
714 (*nfile)->ungetbuf = malloc((*nfile)->ungetsize);
715 if ((*nfile)->ungetbuf == NULL) {
716 error = got_error_from_errno("malloc");
717 fclose((*nfile)->stream);
724 static const struct got_error*
725 new_remote(struct gotconfig_remote_repo **remote)
727 const struct got_error *error = NULL;
729 *remote = calloc(1, sizeof(**remote));
731 error = got_error_from_errno("calloc");
735 static const struct got_error*
736 new_fetch_config(struct fetch_config **fetch_config)
738 const struct got_error *error = NULL;
740 *fetch_config = calloc(1, sizeof(**fetch_config));
741 if (*fetch_config == NULL)
742 error = got_error_from_errno("calloc");
746 static const struct got_error*
747 new_send_config(struct send_config **send_config)
749 const struct got_error *error = NULL;
751 *send_config = calloc(1, sizeof(**send_config));
752 if (*send_config == NULL)
753 error = got_error_from_errno("calloc");
758 closefile(struct file *file)
760 fclose(file->stream);
761 free(file->ungetbuf);
765 const struct got_error *
766 gotconfig_parse(struct gotconfig **conf, const char *filename, int *fd)
768 const struct got_error *err = NULL;
769 struct sym *sym, *next;
773 err = newfile(&file, filename, fd);
777 TAILQ_INIT(&gotconfig.remotes);
782 /* Free macros and check which have not been used. */
783 TAILQ_FOREACH_SAFE(sym, &symhead, entry, next) {
787 TAILQ_REMOVE(&symhead, sym, entry);
798 free_fetch_config(struct fetch_config *fetch_config)
800 free(remote->fetch_config->repository);
801 free(remote->fetch_config->server);
802 free(remote->fetch_config->protocol);
803 free(remote->fetch_config);
807 free_send_config(struct send_config *send_config)
809 free(remote->send_config->repository);
810 free(remote->send_config->server);
811 free(remote->send_config->protocol);
812 free(remote->send_config);
816 gotconfig_free(struct gotconfig *conf)
818 struct gotconfig_remote_repo *remote;
821 free(conf->allowed_signers_file);
822 free(conf->revoked_signers_file);
823 free(conf->signer_id);
824 while (!TAILQ_EMPTY(&conf->remotes)) {
825 remote = TAILQ_FIRST(&conf->remotes);
826 TAILQ_REMOVE(&conf->remotes, remote, entry);
827 if (remote->fetch_config != NULL)
828 free_fetch_config(remote->fetch_config);
829 if (remote->send_config != NULL)
830 free_send_config(remote->send_config);
832 free(remote->repository);
833 free(remote->server);
834 free(remote->protocol);
840 symset(const char *nam, const char *val, int persist)
844 TAILQ_FOREACH(sym, &symhead, entry) {
845 if (strcmp(nam, sym->nam) == 0)
850 if (sym->persist == 1)
855 TAILQ_REMOVE(&symhead, sym, entry);
859 sym = calloc(1, sizeof(*sym));
863 sym->nam = strdup(nam);
864 if (sym->nam == NULL) {
868 sym->val = strdup(val);
869 if (sym->val == NULL) {
875 sym->persist = persist;
876 TAILQ_INSERT_TAIL(&symhead, sym, entry);
881 cmdline_symset(char *s)
887 val = strrchr(s, '=');
891 len = strlen(s) - strlen(val) + 1;
894 errx(1, "cmdline_symset: malloc");
896 strlcpy(sym, s, len);
898 ret = symset(sym, val + 1, 1);
905 symget(const char *nam)
909 TAILQ_FOREACH(sym, &symhead, entry) {
910 if (strcmp(nam, sym->nam) == 0) {
919 atoul(char *s, u_long *ulvalp)
925 ulval = strtoul(s, &ep, 0);
926 if (s[0] == '\0' || *ep != '\0')
928 if (errno == ERANGE && ulval == ULONG_MAX)