1 13b2bc37 2022-10-23 stsp /*
  2 13b2bc37 2022-10-23 stsp  * Copyright (c) 2022 Stefan Sperling <stsp@openbsd.org>
  3 13b2bc37 2022-10-23 stsp  * Copyright (c) 2016-2019, 2020-2021 Tracey Emery <tracey@traceyemery.net>
  4 13b2bc37 2022-10-23 stsp  * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
  5 13b2bc37 2022-10-23 stsp  * Copyright (c) 2004 Ryan McBride <mcbride@openbsd.org>
  6 13b2bc37 2022-10-23 stsp  * Copyright (c) 2002, 2003, 2004 Henning Brauer <henning@openbsd.org>
  7 13b2bc37 2022-10-23 stsp  * Copyright (c) 2001 Markus Friedl.  All rights reserved.
  8 13b2bc37 2022-10-23 stsp  * Copyright (c) 2001 Daniel Hartmeier.  All rights reserved.
  9 13b2bc37 2022-10-23 stsp  * Copyright (c) 2001 Theo de Raadt.  All rights reserved.
 10 13b2bc37 2022-10-23 stsp  *
 11 13b2bc37 2022-10-23 stsp  * Permission to use, copy, modify, and distribute this software for any
 12 13b2bc37 2022-10-23 stsp  * purpose with or without fee is hereby granted, provided that the above
 13 13b2bc37 2022-10-23 stsp  * copyright notice and this permission notice appear in all copies.
 14 13b2bc37 2022-10-23 stsp  *
 15 13b2bc37 2022-10-23 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 16 13b2bc37 2022-10-23 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 17 13b2bc37 2022-10-23 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 18 13b2bc37 2022-10-23 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 19 13b2bc37 2022-10-23 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 20 13b2bc37 2022-10-23 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 21 13b2bc37 2022-10-23 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 22 13b2bc37 2022-10-23 stsp  */
 23 13b2bc37 2022-10-23 stsp 
 24 13b2bc37 2022-10-23 stsp %{
 25 13b2bc37 2022-10-23 stsp #include <sys/time.h>
 26 13b2bc37 2022-10-23 stsp #include <sys/types.h>
 27 13b2bc37 2022-10-23 stsp #include <sys/queue.h>
 28 13b2bc37 2022-10-23 stsp #include <sys/stat.h>
 29 13b2bc37 2022-10-23 stsp 
 30 13b2bc37 2022-10-23 stsp #include <ctype.h>
 31 13b2bc37 2022-10-23 stsp #include <err.h>
 32 13b2bc37 2022-10-23 stsp #include <errno.h>
 33 13b2bc37 2022-10-23 stsp #include <event.h>
 34 13b2bc37 2022-10-23 stsp #include <imsg.h>
 35 13b2bc37 2022-10-23 stsp #include <limits.h>
 36 13b2bc37 2022-10-23 stsp #include <sha1.h>
 37 13b2bc37 2022-10-23 stsp #include <stdarg.h>
 38 13b2bc37 2022-10-23 stsp #include <stdlib.h>
 39 13b2bc37 2022-10-23 stsp #include <stdio.h>
 40 13b2bc37 2022-10-23 stsp #include <string.h>
 41 13b2bc37 2022-10-23 stsp #include <syslog.h>
 42 13b2bc37 2022-10-23 stsp #include <unistd.h>
 43 13b2bc37 2022-10-23 stsp 
 44 13b2bc37 2022-10-23 stsp #include "got_error.h"
 45 13b2bc37 2022-10-23 stsp #include "got_path.h"
 46 13b2bc37 2022-10-23 stsp 
 47 13b2bc37 2022-10-23 stsp #include "log.h"
 48 13b2bc37 2022-10-23 stsp #include "gotd.h"
 49 13b2bc37 2022-10-23 stsp 
 50 13b2bc37 2022-10-23 stsp TAILQ_HEAD(files, file)		 files = TAILQ_HEAD_INITIALIZER(files);
 51 13b2bc37 2022-10-23 stsp static struct file {
 52 13b2bc37 2022-10-23 stsp 	TAILQ_ENTRY(file)	 entry;
 53 13b2bc37 2022-10-23 stsp 	FILE			*stream;
 54 13b2bc37 2022-10-23 stsp 	char			*name;
 55 13b2bc37 2022-10-23 stsp 	int			 lineno;
 56 13b2bc37 2022-10-23 stsp 	int			 errors;
 57 13b2bc37 2022-10-23 stsp } *file;
 58 13b2bc37 2022-10-23 stsp struct file	*newfile(const char *, int);
 59 13b2bc37 2022-10-23 stsp static void	 closefile(struct file *);
 60 13b2bc37 2022-10-23 stsp int		 check_file_secrecy(int, const char *);
 61 13b2bc37 2022-10-23 stsp int		 yyparse(void);
 62 13b2bc37 2022-10-23 stsp int		 yylex(void);
 63 13b2bc37 2022-10-23 stsp int		 yyerror(const char *, ...)
 64 13b2bc37 2022-10-23 stsp     __attribute__((__format__ (printf, 1, 2)))
 65 13b2bc37 2022-10-23 stsp     __attribute__((__nonnull__ (1)));
 66 13b2bc37 2022-10-23 stsp int		 kw_cmp(const void *, const void *);
 67 13b2bc37 2022-10-23 stsp int		 lookup(char *);
 68 13b2bc37 2022-10-23 stsp int		 lgetc(int);
 69 13b2bc37 2022-10-23 stsp int		 lungetc(int);
 70 13b2bc37 2022-10-23 stsp int		 findeol(void);
 71 13b2bc37 2022-10-23 stsp 
 72 13b2bc37 2022-10-23 stsp TAILQ_HEAD(symhead, sym)	 symhead = TAILQ_HEAD_INITIALIZER(symhead);
 73 13b2bc37 2022-10-23 stsp struct sym {
 74 13b2bc37 2022-10-23 stsp 	TAILQ_ENTRY(sym)	 entry;
 75 13b2bc37 2022-10-23 stsp 	int			 used;
 76 13b2bc37 2022-10-23 stsp 	int			 persist;
 77 13b2bc37 2022-10-23 stsp 	char			*nam;
 78 13b2bc37 2022-10-23 stsp 	char			*val;
 79 13b2bc37 2022-10-23 stsp };
 80 13b2bc37 2022-10-23 stsp 
 81 13b2bc37 2022-10-23 stsp int	 symset(const char *, const char *, int);
 82 13b2bc37 2022-10-23 stsp char	*symget(const char *);
 83 13b2bc37 2022-10-23 stsp 
 84 13b2bc37 2022-10-23 stsp static int		 errors;
 85 13b2bc37 2022-10-23 stsp 
 86 13b2bc37 2022-10-23 stsp static struct gotd		*gotd;
 87 13b2bc37 2022-10-23 stsp static struct gotd_repo		*new_repo;
 88 13b2bc37 2022-10-23 stsp static struct gotd_repo		*conf_new_repo(const char *);
 89 13b2bc37 2022-10-23 stsp static enum gotd_procid		 gotd_proc_id;
 90 13b2bc37 2022-10-23 stsp 
 91 13b2bc37 2022-10-23 stsp typedef struct {
 92 13b2bc37 2022-10-23 stsp 	union {
 93 13b2bc37 2022-10-23 stsp 		long long	 number;
 94 13b2bc37 2022-10-23 stsp 		char		*string;
 95 13b2bc37 2022-10-23 stsp 	} v;
 96 13b2bc37 2022-10-23 stsp 	int lineno;
 97 13b2bc37 2022-10-23 stsp } YYSTYPE;
 98 13b2bc37 2022-10-23 stsp 
 99 13b2bc37 2022-10-23 stsp %}
100 13b2bc37 2022-10-23 stsp 
101 0ccf3acb 2022-11-16 stsp %token	PATH ERROR ON UNIX_SOCKET UNIX_GROUP USER REPOSITORY PERMIT DENY
102 13b2bc37 2022-10-23 stsp 
103 13b2bc37 2022-10-23 stsp %token	<v.string>	STRING
104 13b2bc37 2022-10-23 stsp %token	<v.number>	NUMBER
105 13b2bc37 2022-10-23 stsp %type	<v.number>	boolean
106 13b2bc37 2022-10-23 stsp 
107 13b2bc37 2022-10-23 stsp %%
108 13b2bc37 2022-10-23 stsp 
109 13b2bc37 2022-10-23 stsp grammar		:
110 13b2bc37 2022-10-23 stsp 		| grammar '\n'
111 13b2bc37 2022-10-23 stsp 		| grammar main '\n'
112 13b2bc37 2022-10-23 stsp 		| grammar repository '\n'
113 13b2bc37 2022-10-23 stsp 		;
114 13b2bc37 2022-10-23 stsp 
115 13b2bc37 2022-10-23 stsp boolean		: STRING {
116 13b2bc37 2022-10-23 stsp 			if (strcasecmp($1, "1") == 0 ||
117 13b2bc37 2022-10-23 stsp 			    strcasecmp($1, "yes") == 0 ||
118 13b2bc37 2022-10-23 stsp 			    strcasecmp($1, "on") == 0)
119 13b2bc37 2022-10-23 stsp 				$$ = 1;
120 13b2bc37 2022-10-23 stsp 			else if (strcasecmp($1, "0") == 0 ||
121 13b2bc37 2022-10-23 stsp 			    strcasecmp($1, "off") == 0 ||
122 13b2bc37 2022-10-23 stsp 			    strcasecmp($1, "no") == 0)
123 13b2bc37 2022-10-23 stsp 				$$ = 0;
124 13b2bc37 2022-10-23 stsp 			else {
125 13b2bc37 2022-10-23 stsp 				yyerror("invalid boolean value '%s'", $1);
126 13b2bc37 2022-10-23 stsp 				free($1);
127 13b2bc37 2022-10-23 stsp 				YYERROR;
128 13b2bc37 2022-10-23 stsp 			}
129 13b2bc37 2022-10-23 stsp 			free($1);
130 13b2bc37 2022-10-23 stsp 		}
131 13b2bc37 2022-10-23 stsp 		| ON { $$ = 1; }
132 13b2bc37 2022-10-23 stsp 		| NUMBER { $$ = $1; }
133 13b2bc37 2022-10-23 stsp 		;
134 13b2bc37 2022-10-23 stsp 
135 13b2bc37 2022-10-23 stsp main		: UNIX_SOCKET STRING {
136 13b2bc37 2022-10-23 stsp 			if (gotd_proc_id == PROC_GOTD) {
137 13b2bc37 2022-10-23 stsp 				if (strlcpy(gotd->unix_socket_path, $2,
138 13b2bc37 2022-10-23 stsp 				    sizeof(gotd->unix_socket_path)) >=
139 13b2bc37 2022-10-23 stsp 				    sizeof(gotd->unix_socket_path)) {
140 13b2bc37 2022-10-23 stsp 					yyerror("%s: unix socket path too long",
141 13b2bc37 2022-10-23 stsp 					    __func__);
142 13b2bc37 2022-10-23 stsp 					free($2);
143 13b2bc37 2022-10-23 stsp 					YYERROR;
144 13b2bc37 2022-10-23 stsp 				}
145 13b2bc37 2022-10-23 stsp 			}
146 13b2bc37 2022-10-23 stsp 			free($2);
147 13b2bc37 2022-10-23 stsp 		}
148 13b2bc37 2022-10-23 stsp 		| UNIX_GROUP STRING {
149 13b2bc37 2022-10-23 stsp 			if (strlcpy(gotd->unix_group_name, $2,
150 13b2bc37 2022-10-23 stsp 			    sizeof(gotd->unix_group_name)) >=
151 13b2bc37 2022-10-23 stsp 			    sizeof(gotd->unix_group_name)) {
152 13b2bc37 2022-10-23 stsp 				yyerror("%s: unix group name too long",
153 13b2bc37 2022-10-23 stsp 				    __func__);
154 13b2bc37 2022-10-23 stsp 				free($2);
155 13b2bc37 2022-10-23 stsp 				YYERROR;
156 13b2bc37 2022-10-23 stsp 			}
157 13b2bc37 2022-10-23 stsp 			free($2);
158 13b2bc37 2022-10-23 stsp 		}
159 13b2bc37 2022-10-23 stsp 		| USER STRING {
160 13b2bc37 2022-10-23 stsp 			if (strlcpy(gotd->user_name, $2,
161 13b2bc37 2022-10-23 stsp 			    sizeof(gotd->user_name)) >=
162 13b2bc37 2022-10-23 stsp 			    sizeof(gotd->user_name)) {
163 13b2bc37 2022-10-23 stsp 				yyerror("%s: user name too long", __func__);
164 13b2bc37 2022-10-23 stsp 				free($2);
165 13b2bc37 2022-10-23 stsp 				YYERROR;
166 13b2bc37 2022-10-23 stsp 			}
167 13b2bc37 2022-10-23 stsp 			free($2);
168 13b2bc37 2022-10-23 stsp 		}
169 13b2bc37 2022-10-23 stsp 		;
170 13b2bc37 2022-10-23 stsp 
171 13b2bc37 2022-10-23 stsp repository	: REPOSITORY STRING {
172 13b2bc37 2022-10-23 stsp 			struct gotd_repo *repo;
173 13b2bc37 2022-10-23 stsp 
174 13b2bc37 2022-10-23 stsp 			TAILQ_FOREACH(repo, &gotd->repos, entry) {
175 13b2bc37 2022-10-23 stsp 				if (strcmp(repo->name, $2) == 0) {
176 13b2bc37 2022-10-23 stsp 					yyerror("duplicate repository '%s'", $2);
177 13b2bc37 2022-10-23 stsp 					free($2);
178 13b2bc37 2022-10-23 stsp 					YYERROR;
179 13b2bc37 2022-10-23 stsp 				}
180 13b2bc37 2022-10-23 stsp 			}
181 13b2bc37 2022-10-23 stsp 
182 13b2bc37 2022-10-23 stsp 			if (gotd_proc_id == PROC_GOTD) {
183 13b2bc37 2022-10-23 stsp 				new_repo = conf_new_repo($2);
184 13b2bc37 2022-10-23 stsp 			}
185 13b2bc37 2022-10-23 stsp 			free($2);
186 13b2bc37 2022-10-23 stsp 		}
187 13b2bc37 2022-10-23 stsp 		| REPOSITORY STRING {
188 13b2bc37 2022-10-23 stsp 			struct gotd_repo *repo;
189 13b2bc37 2022-10-23 stsp 
190 13b2bc37 2022-10-23 stsp 			TAILQ_FOREACH(repo, &gotd->repos, entry) {
191 13b2bc37 2022-10-23 stsp 				if (strcmp(repo->name, $2) == 0) {
192 13b2bc37 2022-10-23 stsp 					yyerror("duplicate repository '%s'", $2);
193 13b2bc37 2022-10-23 stsp 					free($2);
194 13b2bc37 2022-10-23 stsp 					YYERROR;
195 13b2bc37 2022-10-23 stsp 				}
196 13b2bc37 2022-10-23 stsp 			}
197 13b2bc37 2022-10-23 stsp 
198 13b2bc37 2022-10-23 stsp 			if (gotd_proc_id == PROC_GOTD) {
199 13b2bc37 2022-10-23 stsp 				new_repo = conf_new_repo($2);
200 13b2bc37 2022-10-23 stsp 			}
201 13b2bc37 2022-10-23 stsp 			free($2);
202 13b2bc37 2022-10-23 stsp 		} '{' optnl repoopts2 '}' {
203 13b2bc37 2022-10-23 stsp 		}
204 13b2bc37 2022-10-23 stsp 		;
205 13b2bc37 2022-10-23 stsp 
206 13b2bc37 2022-10-23 stsp repoopts1	: PATH STRING {
207 13b2bc37 2022-10-23 stsp 			if (gotd_proc_id == PROC_GOTD) {
208 13b2bc37 2022-10-23 stsp 				if (!got_path_is_absolute($2)) {
209 13b2bc37 2022-10-23 stsp 					yyerror("%s: path %s is not absolute",
210 13b2bc37 2022-10-23 stsp 					    __func__, $2);
211 13b2bc37 2022-10-23 stsp 					free($2);
212 13b2bc37 2022-10-23 stsp 					YYERROR;
213 13b2bc37 2022-10-23 stsp 				}
214 13b2bc37 2022-10-23 stsp 				if (strlcpy(new_repo->path, $2,
215 13b2bc37 2022-10-23 stsp 				    sizeof(new_repo->path)) >=
216 13b2bc37 2022-10-23 stsp 				    sizeof(new_repo->path)) {
217 13b2bc37 2022-10-23 stsp 					yyerror("%s: path truncated", __func__);
218 13b2bc37 2022-10-23 stsp 					free($2);
219 13b2bc37 2022-10-23 stsp 					YYERROR;
220 13b2bc37 2022-10-23 stsp 				}
221 13b2bc37 2022-10-23 stsp 			}
222 13b2bc37 2022-10-23 stsp 			free($2);
223 0ccf3acb 2022-11-16 stsp 		}
224 0ccf3acb 2022-11-16 stsp 		| PERMIT RO STRING {
225 0ccf3acb 2022-11-16 stsp 			if (gotd_proc_id == PROC_GOTD) {
226 0ccf3acb 2022-11-16 stsp 				conf_new_access_rule(new_repo,
227 0ccf3acb 2022-11-16 stsp 				    GOTD_ACCESS_PERMITTED, GOTD_AUTH_READ, $3);
228 0ccf3acb 2022-11-16 stsp 			}
229 0ccf3acb 2022-11-16 stsp 		}
230 0ccf3acb 2022-11-16 stsp 		| PERMIT RW STRING {
231 0ccf3acb 2022-11-16 stsp 			if (gotd_proc_id == PROC_GOTD) {
232 0ccf3acb 2022-11-16 stsp 				conf_new_access_rule(new_repo,
233 0ccf3acb 2022-11-16 stsp 				    GOTD_ACCESS_PERMITTED,
234 0ccf3acb 2022-11-16 stsp 				    GOTD_AUTH_READ | GOTD_AUTH_WRITE, $3);
235 0ccf3acb 2022-11-16 stsp 			}
236 13b2bc37 2022-10-23 stsp 		}
237 0ccf3acb 2022-11-16 stsp 		| DENY STRING {
238 0ccf3acb 2022-11-16 stsp 			if (gotd_proc_id == PROC_GOTD) {
239 0ccf3acb 2022-11-16 stsp 				conf_new_access_rule(new_repo,
240 0ccf3acb 2022-11-16 stsp 				    GOTD_ACCESS_DENIED, 0, $2);
241 0ccf3acb 2022-11-16 stsp 			}
242 0ccf3acb 2022-11-16 stsp 		}
243 13b2bc37 2022-10-23 stsp 		;
244 13b2bc37 2022-10-23 stsp 
245 13b2bc37 2022-10-23 stsp repoopts2	: repoopts2 repoopts1 nl
246 13b2bc37 2022-10-23 stsp 		| repoopts1 optnl
247 13b2bc37 2022-10-23 stsp 		;
248 13b2bc37 2022-10-23 stsp 
249 13b2bc37 2022-10-23 stsp nl		: '\n' optnl
250 13b2bc37 2022-10-23 stsp 		;
251 13b2bc37 2022-10-23 stsp 
252 13b2bc37 2022-10-23 stsp optnl		: '\n' optnl		/* zero or more newlines */
253 13b2bc37 2022-10-23 stsp 		| /* empty */
254 13b2bc37 2022-10-23 stsp 		;
255 13b2bc37 2022-10-23 stsp 
256 13b2bc37 2022-10-23 stsp %%
257 13b2bc37 2022-10-23 stsp 
258 13b2bc37 2022-10-23 stsp struct keywords {
259 13b2bc37 2022-10-23 stsp 	const char	*k_name;
260 13b2bc37 2022-10-23 stsp 	int		 k_val;
261 13b2bc37 2022-10-23 stsp };
262 13b2bc37 2022-10-23 stsp 
263 13b2bc37 2022-10-23 stsp int
264 13b2bc37 2022-10-23 stsp yyerror(const char *fmt, ...)
265 13b2bc37 2022-10-23 stsp {
266 13b2bc37 2022-10-23 stsp 	va_list ap;
267 13b2bc37 2022-10-23 stsp 	char *msg;
268 13b2bc37 2022-10-23 stsp 
269 13b2bc37 2022-10-23 stsp 	file->errors++;
270 13b2bc37 2022-10-23 stsp 	va_start(ap, fmt);
271 13b2bc37 2022-10-23 stsp 	if (vasprintf(&msg, fmt, ap) == -1)
272 13b2bc37 2022-10-23 stsp 		fatalx("yyerror vasprintf");
273 13b2bc37 2022-10-23 stsp 	va_end(ap);
274 13b2bc37 2022-10-23 stsp 	logit(LOG_CRIT, "%s:%d: %s", file->name, yylval.lineno, msg);
275 13b2bc37 2022-10-23 stsp 	free(msg);
276 13b2bc37 2022-10-23 stsp 	return (0);
277 13b2bc37 2022-10-23 stsp }
278 13b2bc37 2022-10-23 stsp 
279 13b2bc37 2022-10-23 stsp int
280 13b2bc37 2022-10-23 stsp kw_cmp(const void *k, const void *e)
281 13b2bc37 2022-10-23 stsp {
282 13b2bc37 2022-10-23 stsp 	return (strcmp(k, ((const struct keywords *)e)->k_name));
283 13b2bc37 2022-10-23 stsp }
284 13b2bc37 2022-10-23 stsp 
285 13b2bc37 2022-10-23 stsp int
286 13b2bc37 2022-10-23 stsp lookup(char *s)
287 13b2bc37 2022-10-23 stsp {
288 13b2bc37 2022-10-23 stsp 	/* This has to be sorted always. */
289 13b2bc37 2022-10-23 stsp 	static const struct keywords keywords[] = {
290 0ccf3acb 2022-11-16 stsp 		{ "deny",			DENY },
291 13b2bc37 2022-10-23 stsp 		{ "on",				ON },
292 13b2bc37 2022-10-23 stsp 		{ "path",			PATH },
293 0ccf3acb 2022-11-16 stsp 		{ "permit",			PERMIT },
294 13b2bc37 2022-10-23 stsp 		{ "repository",			REPOSITORY },
295 0ccf3acb 2022-11-16 stsp 		{ "ro",				RO },
296 0ccf3acb 2022-11-16 stsp 		{ "rw",				RW },
297 13b2bc37 2022-10-23 stsp 		{ "unix_group",			UNIX_GROUP },
298 13b2bc37 2022-10-23 stsp 		{ "unix_socket",		UNIX_SOCKET },
299 13b2bc37 2022-10-23 stsp 		{ "user",			USER },
300 13b2bc37 2022-10-23 stsp 	};
301 13b2bc37 2022-10-23 stsp 	const struct keywords *p;
302 13b2bc37 2022-10-23 stsp 
303 13b2bc37 2022-10-23 stsp 	p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
304 13b2bc37 2022-10-23 stsp 	    sizeof(keywords[0]), kw_cmp);
305 13b2bc37 2022-10-23 stsp 
306 13b2bc37 2022-10-23 stsp 	if (p)
307 13b2bc37 2022-10-23 stsp 		return (p->k_val);
308 13b2bc37 2022-10-23 stsp 	else
309 13b2bc37 2022-10-23 stsp 		return (STRING);
310 13b2bc37 2022-10-23 stsp }
311 13b2bc37 2022-10-23 stsp 
312 13b2bc37 2022-10-23 stsp #define MAXPUSHBACK	128
313 13b2bc37 2022-10-23 stsp 
314 13b2bc37 2022-10-23 stsp unsigned char *parsebuf;
315 13b2bc37 2022-10-23 stsp int parseindex;
316 13b2bc37 2022-10-23 stsp unsigned char pushback_buffer[MAXPUSHBACK];
317 13b2bc37 2022-10-23 stsp int pushback_index = 0;
318 13b2bc37 2022-10-23 stsp 
319 13b2bc37 2022-10-23 stsp int
320 13b2bc37 2022-10-23 stsp lgetc(int quotec)
321 13b2bc37 2022-10-23 stsp {
322 13b2bc37 2022-10-23 stsp 	int c, next;
323 13b2bc37 2022-10-23 stsp 
324 13b2bc37 2022-10-23 stsp 	if (parsebuf) {
325 13b2bc37 2022-10-23 stsp 		/* Read character from the parsebuffer instead of input. */
326 13b2bc37 2022-10-23 stsp 		if (parseindex >= 0) {
327 13b2bc37 2022-10-23 stsp 			c = parsebuf[parseindex++];
328 13b2bc37 2022-10-23 stsp 			if (c != '\0')
329 13b2bc37 2022-10-23 stsp 				return (c);
330 13b2bc37 2022-10-23 stsp 			parsebuf = NULL;
331 13b2bc37 2022-10-23 stsp 		} else
332 13b2bc37 2022-10-23 stsp 			parseindex++;
333 13b2bc37 2022-10-23 stsp 	}
334 13b2bc37 2022-10-23 stsp 
335 13b2bc37 2022-10-23 stsp 	if (pushback_index)
336 13b2bc37 2022-10-23 stsp 		return (pushback_buffer[--pushback_index]);
337 13b2bc37 2022-10-23 stsp 
338 13b2bc37 2022-10-23 stsp 	if (quotec) {
339 13b2bc37 2022-10-23 stsp 		c = getc(file->stream);
340 13b2bc37 2022-10-23 stsp 		if (c == EOF)
341 13b2bc37 2022-10-23 stsp 			yyerror("reached end of file while parsing "
342 13b2bc37 2022-10-23 stsp 			    "quoted string");
343 13b2bc37 2022-10-23 stsp 		return (c);
344 13b2bc37 2022-10-23 stsp 	}
345 13b2bc37 2022-10-23 stsp 
346 13b2bc37 2022-10-23 stsp 	c = getc(file->stream);
347 13b2bc37 2022-10-23 stsp 	while (c == '\\') {
348 13b2bc37 2022-10-23 stsp 		next = getc(file->stream);
349 13b2bc37 2022-10-23 stsp 		if (next != '\n') {
350 13b2bc37 2022-10-23 stsp 			c = next;
351 13b2bc37 2022-10-23 stsp 			break;
352 13b2bc37 2022-10-23 stsp 		}
353 13b2bc37 2022-10-23 stsp 		yylval.lineno = file->lineno;
354 13b2bc37 2022-10-23 stsp 		file->lineno++;
355 13b2bc37 2022-10-23 stsp 		c = getc(file->stream);
356 13b2bc37 2022-10-23 stsp 	}
357 13b2bc37 2022-10-23 stsp 
358 13b2bc37 2022-10-23 stsp 	return (c);
359 13b2bc37 2022-10-23 stsp }
360 13b2bc37 2022-10-23 stsp 
361 13b2bc37 2022-10-23 stsp int
362 13b2bc37 2022-10-23 stsp lungetc(int c)
363 13b2bc37 2022-10-23 stsp {
364 13b2bc37 2022-10-23 stsp 	if (c == EOF)
365 13b2bc37 2022-10-23 stsp 		return (EOF);
366 13b2bc37 2022-10-23 stsp 	if (parsebuf) {
367 13b2bc37 2022-10-23 stsp 		parseindex--;
368 13b2bc37 2022-10-23 stsp 		if (parseindex >= 0)
369 13b2bc37 2022-10-23 stsp 			return (c);
370 13b2bc37 2022-10-23 stsp 	}
371 13b2bc37 2022-10-23 stsp 	if (pushback_index < MAXPUSHBACK-1)
372 13b2bc37 2022-10-23 stsp 		return (pushback_buffer[pushback_index++] = c);
373 13b2bc37 2022-10-23 stsp 	else
374 13b2bc37 2022-10-23 stsp 		return (EOF);
375 13b2bc37 2022-10-23 stsp }
376 13b2bc37 2022-10-23 stsp 
377 13b2bc37 2022-10-23 stsp int
378 13b2bc37 2022-10-23 stsp findeol(void)
379 13b2bc37 2022-10-23 stsp {
380 13b2bc37 2022-10-23 stsp 	int c;
381 13b2bc37 2022-10-23 stsp 
382 13b2bc37 2022-10-23 stsp 	parsebuf = NULL;
383 13b2bc37 2022-10-23 stsp 
384 13b2bc37 2022-10-23 stsp 	/* Skip to either EOF or the first real EOL. */
385 13b2bc37 2022-10-23 stsp 	while (1) {
386 13b2bc37 2022-10-23 stsp 		if (pushback_index)
387 13b2bc37 2022-10-23 stsp 			c = pushback_buffer[--pushback_index];
388 13b2bc37 2022-10-23 stsp 		else
389 13b2bc37 2022-10-23 stsp 			c = lgetc(0);
390 13b2bc37 2022-10-23 stsp 		if (c == '\n') {
391 13b2bc37 2022-10-23 stsp 			file->lineno++;
392 13b2bc37 2022-10-23 stsp 			break;
393 13b2bc37 2022-10-23 stsp 		}
394 13b2bc37 2022-10-23 stsp 		if (c == EOF)
395 13b2bc37 2022-10-23 stsp 			break;
396 13b2bc37 2022-10-23 stsp 	}
397 13b2bc37 2022-10-23 stsp 	return (ERROR);
398 13b2bc37 2022-10-23 stsp }
399 13b2bc37 2022-10-23 stsp 
400 13b2bc37 2022-10-23 stsp int
401 13b2bc37 2022-10-23 stsp yylex(void)
402 13b2bc37 2022-10-23 stsp {
403 13b2bc37 2022-10-23 stsp 	unsigned char buf[8096];
404 13b2bc37 2022-10-23 stsp 	unsigned char *p, *val;
405 13b2bc37 2022-10-23 stsp 	int quotec, next, c;
406 13b2bc37 2022-10-23 stsp 	int token;
407 13b2bc37 2022-10-23 stsp 
408 13b2bc37 2022-10-23 stsp top:
409 13b2bc37 2022-10-23 stsp 	p = buf;
410 13b2bc37 2022-10-23 stsp 	c = lgetc(0);
411 13b2bc37 2022-10-23 stsp 	while (c == ' ' || c == '\t')
412 13b2bc37 2022-10-23 stsp 		c = lgetc(0); /* nothing */
413 13b2bc37 2022-10-23 stsp 
414 13b2bc37 2022-10-23 stsp 	yylval.lineno = file->lineno;
415 13b2bc37 2022-10-23 stsp 	if (c == '#') {
416 13b2bc37 2022-10-23 stsp 		c = lgetc(0);
417 13b2bc37 2022-10-23 stsp 		while (c != '\n' && c != EOF)
418 13b2bc37 2022-10-23 stsp 			c = lgetc(0); /* nothing */
419 13b2bc37 2022-10-23 stsp 	}
420 13b2bc37 2022-10-23 stsp 	if (c == '$' && parsebuf == NULL) {
421 13b2bc37 2022-10-23 stsp 		while (1) {
422 13b2bc37 2022-10-23 stsp 			c = lgetc(0);
423 13b2bc37 2022-10-23 stsp 			if (c == EOF)
424 13b2bc37 2022-10-23 stsp 				return (0);
425 13b2bc37 2022-10-23 stsp 
426 13b2bc37 2022-10-23 stsp 			if (p + 1 >= buf + sizeof(buf) - 1) {
427 13b2bc37 2022-10-23 stsp 				yyerror("string too long");
428 13b2bc37 2022-10-23 stsp 				return (findeol());
429 13b2bc37 2022-10-23 stsp 			}
430 13b2bc37 2022-10-23 stsp 			if (isalnum(c) || c == '_') {
431 13b2bc37 2022-10-23 stsp 				*p++ = c;
432 13b2bc37 2022-10-23 stsp 				continue;
433 13b2bc37 2022-10-23 stsp 			}
434 13b2bc37 2022-10-23 stsp 			*p = '\0';
435 13b2bc37 2022-10-23 stsp 			lungetc(c);
436 13b2bc37 2022-10-23 stsp 			break;
437 13b2bc37 2022-10-23 stsp 		}
438 13b2bc37 2022-10-23 stsp 		val = symget(buf);
439 13b2bc37 2022-10-23 stsp 		if (val == NULL) {
440 13b2bc37 2022-10-23 stsp 			yyerror("macro '%s' not defined", buf);
441 13b2bc37 2022-10-23 stsp 			return (findeol());
442 13b2bc37 2022-10-23 stsp 		}
443 13b2bc37 2022-10-23 stsp 		parsebuf = val;
444 13b2bc37 2022-10-23 stsp 		parseindex = 0;
445 13b2bc37 2022-10-23 stsp 		goto top;
446 13b2bc37 2022-10-23 stsp 	}
447 13b2bc37 2022-10-23 stsp 
448 13b2bc37 2022-10-23 stsp 	switch (c) {
449 13b2bc37 2022-10-23 stsp 	case '\'':
450 13b2bc37 2022-10-23 stsp 	case '"':
451 13b2bc37 2022-10-23 stsp 		quotec = c;
452 13b2bc37 2022-10-23 stsp 		while (1) {
453 13b2bc37 2022-10-23 stsp 			c = lgetc(quotec);
454 13b2bc37 2022-10-23 stsp 			if (c == EOF)
455 13b2bc37 2022-10-23 stsp 				return (0);
456 13b2bc37 2022-10-23 stsp 			if (c == '\n') {
457 13b2bc37 2022-10-23 stsp 				file->lineno++;
458 13b2bc37 2022-10-23 stsp 				continue;
459 13b2bc37 2022-10-23 stsp 			} else if (c == '\\') {
460 13b2bc37 2022-10-23 stsp 				next = lgetc(quotec);
461 13b2bc37 2022-10-23 stsp 				if (next == EOF)
462 13b2bc37 2022-10-23 stsp 					return (0);
463 13b2bc37 2022-10-23 stsp 				if (next == quotec || c == ' ' || c == '\t')
464 13b2bc37 2022-10-23 stsp 					c = next;
465 13b2bc37 2022-10-23 stsp 				else if (next == '\n') {
466 13b2bc37 2022-10-23 stsp 					file->lineno++;
467 13b2bc37 2022-10-23 stsp 					continue;
468 13b2bc37 2022-10-23 stsp 				} else
469 13b2bc37 2022-10-23 stsp 					lungetc(next);
470 13b2bc37 2022-10-23 stsp 			} else if (c == quotec) {
471 13b2bc37 2022-10-23 stsp 				*p = '\0';
472 13b2bc37 2022-10-23 stsp 				break;
473 13b2bc37 2022-10-23 stsp 			} else if (c == '\0') {
474 13b2bc37 2022-10-23 stsp 				yyerror("syntax error");
475 13b2bc37 2022-10-23 stsp 				return (findeol());
476 13b2bc37 2022-10-23 stsp 			}
477 13b2bc37 2022-10-23 stsp 			if (p + 1 >= buf + sizeof(buf) - 1) {
478 13b2bc37 2022-10-23 stsp 				yyerror("string too long");
479 13b2bc37 2022-10-23 stsp 				return (findeol());
480 13b2bc37 2022-10-23 stsp 			}
481 13b2bc37 2022-10-23 stsp 			*p++ = c;
482 13b2bc37 2022-10-23 stsp 		}
483 13b2bc37 2022-10-23 stsp 		yylval.v.string = strdup(buf);
484 13b2bc37 2022-10-23 stsp 		if (yylval.v.string == NULL)
485 13b2bc37 2022-10-23 stsp 			err(1, "yylex: strdup");
486 13b2bc37 2022-10-23 stsp 		return (STRING);
487 13b2bc37 2022-10-23 stsp 	}
488 13b2bc37 2022-10-23 stsp 
489 13b2bc37 2022-10-23 stsp #define allowed_to_end_number(x) \
490 13b2bc37 2022-10-23 stsp 	(isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')
491 13b2bc37 2022-10-23 stsp 
492 13b2bc37 2022-10-23 stsp 	if (c == '-' || isdigit(c)) {
493 13b2bc37 2022-10-23 stsp 		do {
494 13b2bc37 2022-10-23 stsp 			*p++ = c;
495 13b2bc37 2022-10-23 stsp 			if ((unsigned)(p-buf) >= sizeof(buf)) {
496 13b2bc37 2022-10-23 stsp 				yyerror("string too long");
497 13b2bc37 2022-10-23 stsp 				return (findeol());
498 13b2bc37 2022-10-23 stsp 			}
499 13b2bc37 2022-10-23 stsp 			c = lgetc(0);
500 13b2bc37 2022-10-23 stsp 		} while (c != EOF && isdigit(c));
501 13b2bc37 2022-10-23 stsp 		lungetc(c);
502 13b2bc37 2022-10-23 stsp 		if (p == buf + 1 && buf[0] == '-')
503 13b2bc37 2022-10-23 stsp 			goto nodigits;
504 13b2bc37 2022-10-23 stsp 		if (c == EOF || allowed_to_end_number(c)) {
505 13b2bc37 2022-10-23 stsp 			const char *errstr = NULL;
506 13b2bc37 2022-10-23 stsp 
507 13b2bc37 2022-10-23 stsp 			*p = '\0';
508 13b2bc37 2022-10-23 stsp 			yylval.v.number = strtonum(buf, LLONG_MIN,
509 13b2bc37 2022-10-23 stsp 			    LLONG_MAX, &errstr);
510 13b2bc37 2022-10-23 stsp 			if (errstr) {
511 13b2bc37 2022-10-23 stsp 				yyerror("\"%s\" invalid number: %s",
512 13b2bc37 2022-10-23 stsp 				    buf, errstr);
513 13b2bc37 2022-10-23 stsp 				return (findeol());
514 13b2bc37 2022-10-23 stsp 			}
515 13b2bc37 2022-10-23 stsp 			return (NUMBER);
516 13b2bc37 2022-10-23 stsp 		} else {
517 13b2bc37 2022-10-23 stsp nodigits:
518 13b2bc37 2022-10-23 stsp 			while (p > buf + 1)
519 13b2bc37 2022-10-23 stsp 				lungetc(*--p);
520 13b2bc37 2022-10-23 stsp 			c = *--p;
521 13b2bc37 2022-10-23 stsp 			if (c == '-')
522 13b2bc37 2022-10-23 stsp 				return (c);
523 13b2bc37 2022-10-23 stsp 		}
524 13b2bc37 2022-10-23 stsp 	}
525 13b2bc37 2022-10-23 stsp 
526 13b2bc37 2022-10-23 stsp #define allowed_in_string(x) \
527 13b2bc37 2022-10-23 stsp 	(isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
528 13b2bc37 2022-10-23 stsp 	x != '{' && x != '}' && \
529 13b2bc37 2022-10-23 stsp 	x != '!' && x != '=' && x != '#' && \
530 13b2bc37 2022-10-23 stsp 	x != ','))
531 13b2bc37 2022-10-23 stsp 
532 13b2bc37 2022-10-23 stsp 	if (isalnum(c) || c == ':' || c == '_') {
533 13b2bc37 2022-10-23 stsp 		do {
534 13b2bc37 2022-10-23 stsp 			*p++ = c;
535 13b2bc37 2022-10-23 stsp 			if ((unsigned)(p-buf) >= sizeof(buf)) {
536 13b2bc37 2022-10-23 stsp 				yyerror("string too long");
537 13b2bc37 2022-10-23 stsp 				return (findeol());
538 13b2bc37 2022-10-23 stsp 			}
539 13b2bc37 2022-10-23 stsp 			c = lgetc(0);
540 13b2bc37 2022-10-23 stsp 		} while (c != EOF && (allowed_in_string(c)));
541 13b2bc37 2022-10-23 stsp 		lungetc(c);
542 13b2bc37 2022-10-23 stsp 		*p = '\0';
543 13b2bc37 2022-10-23 stsp 		token = lookup(buf);
544 13b2bc37 2022-10-23 stsp 		if (token == STRING) {
545 13b2bc37 2022-10-23 stsp 			yylval.v.string = strdup(buf);
546 13b2bc37 2022-10-23 stsp 			if (yylval.v.string == NULL)
547 13b2bc37 2022-10-23 stsp 				err(1, "yylex: strdup");
548 13b2bc37 2022-10-23 stsp 		}
549 13b2bc37 2022-10-23 stsp 		return (token);
550 13b2bc37 2022-10-23 stsp 	}
551 13b2bc37 2022-10-23 stsp 	if (c == '\n') {
552 13b2bc37 2022-10-23 stsp 		yylval.lineno = file->lineno;
553 13b2bc37 2022-10-23 stsp 		file->lineno++;
554 13b2bc37 2022-10-23 stsp 	}
555 13b2bc37 2022-10-23 stsp 	if (c == EOF)
556 13b2bc37 2022-10-23 stsp 		return (0);
557 13b2bc37 2022-10-23 stsp 	return (c);
558 13b2bc37 2022-10-23 stsp }
559 13b2bc37 2022-10-23 stsp 
560 13b2bc37 2022-10-23 stsp int
561 13b2bc37 2022-10-23 stsp check_file_secrecy(int fd, const char *fname)
562 13b2bc37 2022-10-23 stsp {
563 13b2bc37 2022-10-23 stsp 	struct stat st;
564 13b2bc37 2022-10-23 stsp 
565 13b2bc37 2022-10-23 stsp 	if (fstat(fd, &st)) {
566 13b2bc37 2022-10-23 stsp 		log_warn("cannot stat %s", fname);
567 13b2bc37 2022-10-23 stsp 		return (-1);
568 13b2bc37 2022-10-23 stsp 	}
569 13b2bc37 2022-10-23 stsp 	if (st.st_uid != 0 && st.st_uid != getuid()) {
570 13b2bc37 2022-10-23 stsp 		log_warnx("%s: owner not root or current user", fname);
571 13b2bc37 2022-10-23 stsp 		return (-1);
572 13b2bc37 2022-10-23 stsp 	}
573 13b2bc37 2022-10-23 stsp 	if (st.st_mode & (S_IWGRP | S_IXGRP | S_IRWXO)) {
574 13b2bc37 2022-10-23 stsp 		log_warnx("%s: group writable or world read/writable", fname);
575 13b2bc37 2022-10-23 stsp 		return (-1);
576 13b2bc37 2022-10-23 stsp 	}
577 13b2bc37 2022-10-23 stsp 	return (0);
578 13b2bc37 2022-10-23 stsp }
579 13b2bc37 2022-10-23 stsp 
580 13b2bc37 2022-10-23 stsp struct file *
581 13b2bc37 2022-10-23 stsp newfile(const char *name, int secret)
582 13b2bc37 2022-10-23 stsp {
583 13b2bc37 2022-10-23 stsp 	struct file *nfile;
584 13b2bc37 2022-10-23 stsp 
585 13b2bc37 2022-10-23 stsp 	nfile = calloc(1, sizeof(struct file));
586 13b2bc37 2022-10-23 stsp 	if (nfile == NULL) {
587 13b2bc37 2022-10-23 stsp 		log_warn("calloc");
588 13b2bc37 2022-10-23 stsp 		return (NULL);
589 13b2bc37 2022-10-23 stsp 	}
590 13b2bc37 2022-10-23 stsp 	nfile->name = strdup(name);
591 13b2bc37 2022-10-23 stsp 	if (nfile->name == NULL) {
592 13b2bc37 2022-10-23 stsp 		log_warn("strdup");
593 13b2bc37 2022-10-23 stsp 		free(nfile);
594 13b2bc37 2022-10-23 stsp 		return (NULL);
595 13b2bc37 2022-10-23 stsp 	}
596 13b2bc37 2022-10-23 stsp 	nfile->stream = fopen(nfile->name, "r");
597 13b2bc37 2022-10-23 stsp 	if (nfile->stream == NULL) {
598 13b2bc37 2022-10-23 stsp 		/* no warning, we don't require a conf file */
599 13b2bc37 2022-10-23 stsp 		free(nfile->name);
600 13b2bc37 2022-10-23 stsp 		free(nfile);
601 13b2bc37 2022-10-23 stsp 		return (NULL);
602 13b2bc37 2022-10-23 stsp 	} else if (secret &&
603 13b2bc37 2022-10-23 stsp 	    check_file_secrecy(fileno(nfile->stream), nfile->name)) {
604 13b2bc37 2022-10-23 stsp 		fclose(nfile->stream);
605 13b2bc37 2022-10-23 stsp 		free(nfile->name);
606 13b2bc37 2022-10-23 stsp 		free(nfile);
607 13b2bc37 2022-10-23 stsp 		return (NULL);
608 13b2bc37 2022-10-23 stsp 	}
609 13b2bc37 2022-10-23 stsp 	nfile->lineno = 1;
610 13b2bc37 2022-10-23 stsp 	return (nfile);
611 13b2bc37 2022-10-23 stsp }
612 13b2bc37 2022-10-23 stsp 
613 13b2bc37 2022-10-23 stsp static void
614 13b2bc37 2022-10-23 stsp closefile(struct file *xfile)
615 13b2bc37 2022-10-23 stsp {
616 13b2bc37 2022-10-23 stsp 	fclose(xfile->stream);
617 13b2bc37 2022-10-23 stsp 	free(xfile->name);
618 13b2bc37 2022-10-23 stsp 	free(xfile);
619 13b2bc37 2022-10-23 stsp }
620 13b2bc37 2022-10-23 stsp 
621 13b2bc37 2022-10-23 stsp int
622 13b2bc37 2022-10-23 stsp parse_config(const char *filename, enum gotd_procid proc_id,
623 13b2bc37 2022-10-23 stsp     struct gotd *env)
624 13b2bc37 2022-10-23 stsp {
625 13b2bc37 2022-10-23 stsp 	struct sym *sym, *next;
626 13b2bc37 2022-10-23 stsp 
627 13b2bc37 2022-10-23 stsp 	memset(env, 0, sizeof(*env));
628 13b2bc37 2022-10-23 stsp 
629 13b2bc37 2022-10-23 stsp 	gotd = env;
630 13b2bc37 2022-10-23 stsp 	gotd_proc_id = proc_id;
631 13b2bc37 2022-10-23 stsp 	TAILQ_INIT(&gotd->repos);
632 13b2bc37 2022-10-23 stsp 
633 13b2bc37 2022-10-23 stsp 	/* Apply default values. */
634 13b2bc37 2022-10-23 stsp 	if (strlcpy(gotd->unix_socket_path, GOTD_UNIX_SOCKET,
635 13b2bc37 2022-10-23 stsp 	    sizeof(gotd->unix_socket_path)) >= sizeof(gotd->unix_socket_path)) {
636 13b2bc37 2022-10-23 stsp 		fprintf(stderr, "%s: unix socket path too long", __func__);
637 13b2bc37 2022-10-23 stsp 		return -1;
638 13b2bc37 2022-10-23 stsp 	}
639 13b2bc37 2022-10-23 stsp 	if (strlcpy(gotd->unix_group_name, GOTD_UNIX_GROUP,
640 13b2bc37 2022-10-23 stsp 	    sizeof(gotd->unix_group_name)) >= sizeof(gotd->unix_group_name)) {
641 13b2bc37 2022-10-23 stsp 		fprintf(stderr, "%s: unix group name too long", __func__);
642 13b2bc37 2022-10-23 stsp 		return -1;
643 13b2bc37 2022-10-23 stsp 	}
644 13b2bc37 2022-10-23 stsp 	if (strlcpy(gotd->user_name, GOTD_USER,
645 13b2bc37 2022-10-23 stsp 	    sizeof(gotd->user_name)) >= sizeof(gotd->user_name)) {
646 13b2bc37 2022-10-23 stsp 		fprintf(stderr, "%s: user name too long", __func__);
647 13b2bc37 2022-10-23 stsp 		return -1;
648 13b2bc37 2022-10-23 stsp 	}
649 13b2bc37 2022-10-23 stsp 
650 13b2bc37 2022-10-23 stsp 	file = newfile(filename, 0);
651 13b2bc37 2022-10-23 stsp 	if (file == NULL) {
652 13b2bc37 2022-10-23 stsp 		/* just return, as we don't require a conf file */
653 13b2bc37 2022-10-23 stsp 		return (0);
654 13b2bc37 2022-10-23 stsp 	}
655 13b2bc37 2022-10-23 stsp 
656 13b2bc37 2022-10-23 stsp 	yyparse();
657 13b2bc37 2022-10-23 stsp 	errors = file->errors;
658 13b2bc37 2022-10-23 stsp 	closefile(file);
659 13b2bc37 2022-10-23 stsp 
660 13b2bc37 2022-10-23 stsp 	/* Free macros and check which have not been used. */
661 13b2bc37 2022-10-23 stsp 	TAILQ_FOREACH_SAFE(sym, &symhead, entry, next) {
662 13b2bc37 2022-10-23 stsp 		if ((gotd->verbosity > 1) && !sym->used)
663 13b2bc37 2022-10-23 stsp 			fprintf(stderr, "warning: macro '%s' not used\n",
664 13b2bc37 2022-10-23 stsp 			    sym->nam);
665 13b2bc37 2022-10-23 stsp 		if (!sym->persist) {
666 13b2bc37 2022-10-23 stsp 			free(sym->nam);
667 13b2bc37 2022-10-23 stsp 			free(sym->val);
668 13b2bc37 2022-10-23 stsp 			TAILQ_REMOVE(&symhead, sym, entry);
669 13b2bc37 2022-10-23 stsp 			free(sym);
670 13b2bc37 2022-10-23 stsp 		}
671 13b2bc37 2022-10-23 stsp 	}
672 13b2bc37 2022-10-23 stsp 
673 13b2bc37 2022-10-23 stsp 	if (errors)
674 13b2bc37 2022-10-23 stsp 		return (-1);
675 13b2bc37 2022-10-23 stsp 
676 13b2bc37 2022-10-23 stsp 	return (0);
677 13b2bc37 2022-10-23 stsp }
678 13b2bc37 2022-10-23 stsp 
679 13b2bc37 2022-10-23 stsp static struct gotd_repo *
680 13b2bc37 2022-10-23 stsp conf_new_repo(const char *name)
681 13b2bc37 2022-10-23 stsp {
682 13b2bc37 2022-10-23 stsp 	struct gotd_repo *repo;
683 13b2bc37 2022-10-23 stsp 
684 13b2bc37 2022-10-23 stsp 	if (strchr(name, '\n') != NULL) {
685 13b2bc37 2022-10-23 stsp 		fatalx("%s: repository names must not contain linefeeds: %s",
686 13b2bc37 2022-10-23 stsp 		    getprogname(), name);
687 13b2bc37 2022-10-23 stsp 	}
688 13b2bc37 2022-10-23 stsp 
689 13b2bc37 2022-10-23 stsp 	repo = calloc(1, sizeof(*repo));
690 13b2bc37 2022-10-23 stsp 	if (repo == NULL)
691 13b2bc37 2022-10-23 stsp 		fatalx("%s: calloc", __func__);
692 13b2bc37 2022-10-23 stsp 
693 0ccf3acb 2022-11-16 stsp 	STAILQ_INIT(&repo->rules);
694 0ccf3acb 2022-11-16 stsp 
695 13b2bc37 2022-10-23 stsp 	if (strlcpy(repo->name, name, sizeof(repo->name)) >=
696 13b2bc37 2022-10-23 stsp 	    sizeof(repo->name))
697 13b2bc37 2022-10-23 stsp 		fatalx("%s: strlcpy", __func__);
698 13b2bc37 2022-10-23 stsp 
699 13b2bc37 2022-10-23 stsp 	TAILQ_INSERT_TAIL(&gotd->repos, repo, entry);
700 13b2bc37 2022-10-23 stsp 	gotd->nrepos++;
701 13b2bc37 2022-10-23 stsp 
702 13b2bc37 2022-10-23 stsp 	return repo;
703 13b2bc37 2022-10-23 stsp };
704 0ccf3acb 2022-11-16 stsp 
705 0ccf3acb 2022-11-16 stsp static void
706 0ccf3acb 2022-11-16 stsp conf_new_access_rule(struct gotd_repo *repo, enum gotd_access access,
707 0ccf3acb 2022-11-16 stsp     int authorization, char *identifier)
708 0ccf3acb 2022-11-16 stsp {
709 0ccf3acb 2022-11-16 stsp 	struct gotd_access_rule *rule;
710 0ccf3acb 2022-11-16 stsp 
711 0ccf3acb 2022-11-16 stsp 	rule = calloc(1, sizeof(*rule));
712 0ccf3acb 2022-11-16 stsp 	if (rule == NULL)
713 0ccf3acb 2022-11-16 stsp 		fatal("calloc");
714 13b2bc37 2022-10-23 stsp 
715 0ccf3acb 2022-11-16 stsp 	rule->access = access;
716 0ccf3acb 2022-11-16 stsp 	rule->authorization = authorization;
717 0ccf3acb 2022-11-16 stsp 	rule->identifier = identifier;
718 0ccf3acb 2022-11-16 stsp 
719 0ccf3acb 2022-11-16 stsp 	STAILQ_INSERT_TAIL(&repo->rules, rule, entry);
720 0ccf3acb 2022-11-16 stsp }
721 0ccf3acb 2022-11-16 stsp 
722 13b2bc37 2022-10-23 stsp int
723 13b2bc37 2022-10-23 stsp symset(const char *nam, const char *val, int persist)
724 13b2bc37 2022-10-23 stsp {
725 13b2bc37 2022-10-23 stsp 	struct sym *sym;
726 13b2bc37 2022-10-23 stsp 
727 13b2bc37 2022-10-23 stsp 	TAILQ_FOREACH(sym, &symhead, entry) {
728 13b2bc37 2022-10-23 stsp 		if (strcmp(nam, sym->nam) == 0)
729 13b2bc37 2022-10-23 stsp 			break;
730 13b2bc37 2022-10-23 stsp 	}
731 13b2bc37 2022-10-23 stsp 
732 13b2bc37 2022-10-23 stsp 	if (sym != NULL) {
733 13b2bc37 2022-10-23 stsp 		if (sym->persist == 1)
734 13b2bc37 2022-10-23 stsp 			return (0);
735 13b2bc37 2022-10-23 stsp 		else {
736 13b2bc37 2022-10-23 stsp 			free(sym->nam);
737 13b2bc37 2022-10-23 stsp 			free(sym->val);
738 13b2bc37 2022-10-23 stsp 			TAILQ_REMOVE(&symhead, sym, entry);
739 13b2bc37 2022-10-23 stsp 			free(sym);
740 13b2bc37 2022-10-23 stsp 		}
741 13b2bc37 2022-10-23 stsp 	}
742 13b2bc37 2022-10-23 stsp 	sym = calloc(1, sizeof(*sym));
743 13b2bc37 2022-10-23 stsp 	if (sym == NULL)
744 13b2bc37 2022-10-23 stsp 		return (-1);
745 13b2bc37 2022-10-23 stsp 
746 13b2bc37 2022-10-23 stsp 	sym->nam = strdup(nam);
747 13b2bc37 2022-10-23 stsp 	if (sym->nam == NULL) {
748 13b2bc37 2022-10-23 stsp 		free(sym);
749 13b2bc37 2022-10-23 stsp 		return (-1);
750 13b2bc37 2022-10-23 stsp 	}
751 13b2bc37 2022-10-23 stsp 	sym->val = strdup(val);
752 13b2bc37 2022-10-23 stsp 	if (sym->val == NULL) {
753 13b2bc37 2022-10-23 stsp 		free(sym->nam);
754 13b2bc37 2022-10-23 stsp 		free(sym);
755 13b2bc37 2022-10-23 stsp 		return (-1);
756 13b2bc37 2022-10-23 stsp 	}
757 13b2bc37 2022-10-23 stsp 	sym->used = 0;
758 13b2bc37 2022-10-23 stsp 	sym->persist = persist;
759 13b2bc37 2022-10-23 stsp 	TAILQ_INSERT_TAIL(&symhead, sym, entry);
760 13b2bc37 2022-10-23 stsp 	return (0);
761 13b2bc37 2022-10-23 stsp }
762 13b2bc37 2022-10-23 stsp 
763 13b2bc37 2022-10-23 stsp char *
764 13b2bc37 2022-10-23 stsp symget(const char *nam)
765 13b2bc37 2022-10-23 stsp {
766 13b2bc37 2022-10-23 stsp 	struct sym *sym;
767 13b2bc37 2022-10-23 stsp 
768 13b2bc37 2022-10-23 stsp 	TAILQ_FOREACH(sym, &symhead, entry) {
769 13b2bc37 2022-10-23 stsp 		if (strcmp(nam, sym->nam) == 0) {
770 13b2bc37 2022-10-23 stsp 			sym->used = 1;
771 13b2bc37 2022-10-23 stsp 			return (sym->val);
772 13b2bc37 2022-10-23 stsp 		}
773 13b2bc37 2022-10-23 stsp 	}
774 13b2bc37 2022-10-23 stsp 	return (NULL);
775 13b2bc37 2022-10-23 stsp }