1 35e1f40a 2021-03-14 op /*
  2 35e1f40a 2021-03-14 op  * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
  3 35e1f40a 2021-03-14 op  *
  4 35e1f40a 2021-03-14 op  * Permission to use, copy, modify, and distribute this software for any
  5 35e1f40a 2021-03-14 op  * purpose with or without fee is hereby granted, provided that the above
  6 35e1f40a 2021-03-14 op  * copyright notice and this permission notice appear in all copies.
  7 35e1f40a 2021-03-14 op  *
  8 35e1f40a 2021-03-14 op  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 35e1f40a 2021-03-14 op  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 35e1f40a 2021-03-14 op  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 35e1f40a 2021-03-14 op  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 35e1f40a 2021-03-14 op  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 35e1f40a 2021-03-14 op  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 35e1f40a 2021-03-14 op  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 35e1f40a 2021-03-14 op  */
 16 35e1f40a 2021-03-14 op 
 17 740f578b 2021-03-15 op /*
 18 740f578b 2021-03-15 op  * Handles the data in ~/.telescope
 19 3a227e9a 2021-03-18 op  *
 20 3a227e9a 2021-03-18 op  * TODO: add some form of locking on the files
 21 740f578b 2021-03-15 op  */
 22 740f578b 2021-03-15 op 
 23 35e1f40a 2021-03-14 op #include "telescope.h"
 24 35e1f40a 2021-03-14 op 
 25 6cd6a9e1 2021-03-20 op #include <sys/stat.h>
 26 6cd6a9e1 2021-03-20 op 
 27 35e1f40a 2021-03-14 op #include <errno.h>
 28 35e1f40a 2021-03-14 op #include <limits.h>
 29 35e1f40a 2021-03-14 op #include <stdio.h>
 30 35e1f40a 2021-03-14 op #include <stdlib.h>
 31 35e1f40a 2021-03-14 op #include <string.h>
 32 35e1f40a 2021-03-14 op #include <unistd.h>
 33 35e1f40a 2021-03-14 op 
 34 35e1f40a 2021-03-14 op static void		 die(void) __attribute__((__noreturn__));
 35 35e1f40a 2021-03-14 op static void		 serve_bookmarks(uint32_t);
 36 35e1f40a 2021-03-14 op static void		 handle_get(struct imsg*, size_t);
 37 35e1f40a 2021-03-14 op static void		 handle_quit(struct imsg*, size_t);
 38 740f578b 2021-03-15 op static void		 handle_bookmark_page(struct imsg*, size_t);
 39 3a227e9a 2021-03-18 op static void		 handle_save_cert(struct imsg*, size_t);
 40 288fd238 2021-04-25 op static void		 handle_update_cert(struct imsg*, size_t);
 41 c7107cec 2021-04-01 op static void		 handle_session_start(struct imsg*, size_t);
 42 c7107cec 2021-04-01 op static void		 handle_session_tab(struct imsg*, size_t);
 43 c7107cec 2021-04-01 op static void		 handle_session_end(struct imsg*, size_t);
 44 1304bbdd 2021-03-15 op static void		 handle_dispatch_imsg(int, short, void*);
 45 35e1f40a 2021-03-14 op 
 46 35e1f40a 2021-03-14 op static struct event		 imsgev;
 47 35e1f40a 2021-03-14 op static struct imsgbuf		*ibuf;
 48 35e1f40a 2021-03-14 op 
 49 c7107cec 2021-04-01 op static FILE			*session;
 50 c7107cec 2021-04-01 op 
 51 740f578b 2021-03-15 op static char	bookmark_file[PATH_MAX];
 52 288fd238 2021-04-25 op static char	known_hosts_file[PATH_MAX], known_hosts_tmp[PATH_MAX];
 53 c7107cec 2021-04-01 op static char	session_file[PATH_MAX];
 54 740f578b 2021-03-15 op 
 55 35e1f40a 2021-03-14 op static imsg_handlerfn *handlers[] = {
 56 35e1f40a 2021-03-14 op 	[IMSG_GET] = handle_get,
 57 35e1f40a 2021-03-14 op 	[IMSG_QUIT] = handle_quit,
 58 740f578b 2021-03-15 op 	[IMSG_BOOKMARK_PAGE] = handle_bookmark_page,
 59 3a227e9a 2021-03-18 op 	[IMSG_SAVE_CERT] = handle_save_cert,
 60 288fd238 2021-04-25 op 	[IMSG_UPDATE_CERT] = handle_update_cert,
 61 c7107cec 2021-04-01 op 	[IMSG_SESSION_START] = handle_session_start,
 62 c7107cec 2021-04-01 op 	[IMSG_SESSION_TAB] = handle_session_tab,
 63 c7107cec 2021-04-01 op 	[IMSG_SESSION_END] = handle_session_end,
 64 35e1f40a 2021-03-14 op };
 65 35e1f40a 2021-03-14 op 
 66 35e1f40a 2021-03-14 op static void __attribute__((__noreturn__))
 67 35e1f40a 2021-03-14 op die(void)
 68 35e1f40a 2021-03-14 op {
 69 35e1f40a 2021-03-14 op 	abort(); 		/* TODO */
 70 35e1f40a 2021-03-14 op }
 71 35e1f40a 2021-03-14 op 
 72 35e1f40a 2021-03-14 op static void
 73 35e1f40a 2021-03-14 op serve_bookmarks(uint32_t peerid)
 74 35e1f40a 2021-03-14 op {
 75 35e1f40a 2021-03-14 op 	const char	*t;
 76 740f578b 2021-03-15 op 	char		 buf[BUFSIZ];
 77 35e1f40a 2021-03-14 op 	size_t		 r;
 78 35e1f40a 2021-03-14 op 	FILE		*f;
 79 35e1f40a 2021-03-14 op 
 80 740f578b 2021-03-15 op 	if ((f = fopen(bookmark_file, "r")) == NULL) {
 81 503425db 2021-04-01 op 		t = "# Bookmarks\n\n"
 82 503425db 2021-04-01 op 		    "No bookmarks yet!\n"
 83 503425db 2021-04-01 op 		    "Create ~/.telescope/bookmarks.gmi or use `bookmark-page'.\n";
 84 35e1f40a 2021-03-14 op 		imsg_compose(ibuf, IMSG_BUF, peerid, 0, -1, t, strlen(t));
 85 35e1f40a 2021-03-14 op 		imsg_compose(ibuf, IMSG_EOF, peerid, 0, -1, NULL, 0);
 86 35e1f40a 2021-03-14 op 		imsg_flush(ibuf);
 87 35e1f40a 2021-03-14 op 		return;
 88 35e1f40a 2021-03-14 op 	}
 89 35e1f40a 2021-03-14 op 
 90 35e1f40a 2021-03-14 op 	for (;;) {
 91 35e1f40a 2021-03-14 op 		r = fread(buf, 1, sizeof(buf), f);
 92 35e1f40a 2021-03-14 op 		imsg_compose(ibuf, IMSG_BUF, peerid, 0, -1, buf, r);
 93 35e1f40a 2021-03-14 op 		imsg_flush(ibuf);
 94 35e1f40a 2021-03-14 op 		if (r != sizeof(buf))
 95 35e1f40a 2021-03-14 op 			break;
 96 35e1f40a 2021-03-14 op 	}
 97 35e1f40a 2021-03-14 op 
 98 35e1f40a 2021-03-14 op 	imsg_compose(ibuf, IMSG_EOF, peerid, 0, -1, NULL, 0);
 99 35e1f40a 2021-03-14 op 	imsg_flush(ibuf);
100 35e1f40a 2021-03-14 op 
101 35e1f40a 2021-03-14 op 	fclose(f);
102 35e1f40a 2021-03-14 op }
103 35e1f40a 2021-03-14 op 
104 35e1f40a 2021-03-14 op static void
105 35e1f40a 2021-03-14 op handle_get(struct imsg *imsg, size_t datalen)
106 35e1f40a 2021-03-14 op {
107 35e1f40a 2021-03-14 op 	char		*data;
108 35e1f40a 2021-03-14 op 	const char	*p;
109 35e1f40a 2021-03-14 op 
110 35e1f40a 2021-03-14 op 	data = imsg->data;
111 35e1f40a 2021-03-14 op 
112 35e1f40a 2021-03-14 op 	if (data[datalen-1] != '\0')
113 35e1f40a 2021-03-14 op 		die();
114 35e1f40a 2021-03-14 op 
115 35e1f40a 2021-03-14 op 	if (!strcmp(data, "about:new")) {
116 35e1f40a 2021-03-14 op 		imsg_compose(ibuf, IMSG_BUF, imsg->hdr.peerid, 0, -1,
117 35e1f40a 2021-03-14 op 		    about_new, strlen(about_new));
118 35e1f40a 2021-03-14 op 		imsg_compose(ibuf, IMSG_EOF, imsg->hdr.peerid, 0, -1, NULL, 0);
119 35e1f40a 2021-03-14 op 		imsg_flush(ibuf);
120 35e1f40a 2021-03-14 op 	} else if (!strcmp(data, "about:bookmarks")) {
121 35e1f40a 2021-03-14 op 		serve_bookmarks(imsg->hdr.peerid);
122 35e1f40a 2021-03-14 op 	} else {
123 35e1f40a 2021-03-14 op 		p = "# not found!\n";
124 35e1f40a 2021-03-14 op 		imsg_compose(ibuf, IMSG_BUF, imsg->hdr.peerid, 0, -1, p, strlen(p));
125 35e1f40a 2021-03-14 op 		imsg_compose(ibuf, IMSG_EOF, imsg->hdr.peerid, 0, -1, NULL, 0);
126 35e1f40a 2021-03-14 op 		imsg_flush(ibuf);
127 35e1f40a 2021-03-14 op 	}
128 35e1f40a 2021-03-14 op }
129 35e1f40a 2021-03-14 op 
130 35e1f40a 2021-03-14 op static void
131 35e1f40a 2021-03-14 op handle_quit(struct imsg *imsg, size_t datalen)
132 35e1f40a 2021-03-14 op {
133 35e1f40a 2021-03-14 op 	event_loopbreak();
134 35e1f40a 2021-03-14 op }
135 35e1f40a 2021-03-14 op 
136 35e1f40a 2021-03-14 op static void
137 740f578b 2021-03-15 op handle_bookmark_page(struct imsg *imsg, size_t datalen)
138 740f578b 2021-03-15 op {
139 740f578b 2021-03-15 op 	char	*data;
140 740f578b 2021-03-15 op 	int	 res;
141 740f578b 2021-03-15 op 	FILE	*f;
142 740f578b 2021-03-15 op 
143 740f578b 2021-03-15 op 	data = imsg->data;
144 740f578b 2021-03-15 op 	if (data[datalen-1] != '\0')
145 740f578b 2021-03-15 op 		die();
146 740f578b 2021-03-15 op 
147 740f578b 2021-03-15 op 	if ((f = fopen(bookmark_file, "a")) == NULL) {
148 740f578b 2021-03-15 op 		res = errno;
149 740f578b 2021-03-15 op 		goto end;
150 740f578b 2021-03-15 op 	}
151 740f578b 2021-03-15 op 	fprintf(f, "=> %s\n", data);
152 740f578b 2021-03-15 op 	fclose(f);
153 740f578b 2021-03-15 op 
154 740f578b 2021-03-15 op 	res = 0;
155 740f578b 2021-03-15 op end:
156 740f578b 2021-03-15 op 	imsg_compose(ibuf, IMSG_BOOKMARK_OK, 0, 0, -1, &res, sizeof(res));
157 740f578b 2021-03-15 op 	imsg_flush(ibuf);
158 740f578b 2021-03-15 op }
159 740f578b 2021-03-15 op 
160 740f578b 2021-03-15 op static void
161 3a227e9a 2021-03-18 op handle_save_cert(struct imsg *imsg, size_t datalen)
162 3a227e9a 2021-03-18 op {
163 3a227e9a 2021-03-18 op 	struct tofu_entry	 e;
164 3a227e9a 2021-03-18 op 	FILE			*f;
165 3a227e9a 2021-03-18 op 	int			 res;
166 3a227e9a 2021-03-18 op 
167 3a227e9a 2021-03-18 op 	/* TODO: traverse the file to avoid duplications? */
168 3a227e9a 2021-03-18 op 
169 3a227e9a 2021-03-18 op 	if (datalen != sizeof(e))
170 3a227e9a 2021-03-18 op 		die();
171 3a227e9a 2021-03-18 op 	memcpy(&e, imsg->data, datalen);
172 3a227e9a 2021-03-18 op 
173 3a227e9a 2021-03-18 op 	if ((f = fopen(known_hosts_file, "a")) == NULL) {
174 3a227e9a 2021-03-18 op 		res = errno;
175 3a227e9a 2021-03-18 op 		goto end;
176 3a227e9a 2021-03-18 op 	}
177 3a227e9a 2021-03-18 op 	fprintf(f, "%s %s %d\n", e.domain, e.hash, e.verified);
178 3a227e9a 2021-03-18 op 	fclose(f);
179 3a227e9a 2021-03-18 op 
180 3a227e9a 2021-03-18 op 	res = 0;
181 3a227e9a 2021-03-18 op end:
182 3a227e9a 2021-03-18 op 	imsg_compose(ibuf, IMSG_SAVE_CERT_OK, imsg->hdr.peerid, 0, -1,
183 288fd238 2021-04-25 op 	    &res, sizeof(res));
184 288fd238 2021-04-25 op 	imsg_flush(ibuf);
185 288fd238 2021-04-25 op }
186 288fd238 2021-04-25 op 
187 288fd238 2021-04-25 op static void
188 288fd238 2021-04-25 op handle_update_cert(struct imsg *imsg, size_t datalen)
189 288fd238 2021-04-25 op {
190 288fd238 2021-04-25 op 	FILE	*tmp, *f;
191 288fd238 2021-04-25 op 	struct	 tofu_entry entry;
192 288fd238 2021-04-25 op 	char	 sfn[PATH_MAX], *line = NULL, *t;
193 288fd238 2021-04-25 op 	size_t	 l, linesize = 0;
194 288fd238 2021-04-25 op 	ssize_t	 linelen;
195 288fd238 2021-04-25 op 	int	 fd, e, res = 0;
196 288fd238 2021-04-25 op 
197 288fd238 2021-04-25 op 	if (datalen != sizeof(entry))
198 288fd238 2021-04-25 op 		die();
199 288fd238 2021-04-25 op 	memcpy(&entry, imsg->data, datalen);
200 288fd238 2021-04-25 op 
201 288fd238 2021-04-25 op 	strlcpy(sfn, known_hosts_tmp, sizeof(sfn));
202 288fd238 2021-04-25 op 	if ((fd = mkstemp(sfn)) == -1 ||
203 288fd238 2021-04-25 op 	    (tmp = fdopen(fd, "w")) == NULL) {
204 288fd238 2021-04-25 op 		if (fd != -1) {
205 288fd238 2021-04-25 op 			unlink(sfn);
206 288fd238 2021-04-25 op 			close(fd);
207 288fd238 2021-04-25 op 		}
208 288fd238 2021-04-25 op 		res = 0;
209 288fd238 2021-04-25 op 		goto end;
210 288fd238 2021-04-25 op 	}
211 288fd238 2021-04-25 op 
212 288fd238 2021-04-25 op 	if ((f = fopen(known_hosts_file, "r")) == NULL) {
213 288fd238 2021-04-25 op 		unlink(sfn);
214 288fd238 2021-04-25 op 		fclose(tmp);
215 288fd238 2021-04-25 op                 res = 0;
216 288fd238 2021-04-25 op 		goto end;
217 288fd238 2021-04-25 op 	}
218 288fd238 2021-04-25 op 
219 288fd238 2021-04-25 op 	l = strlen(entry.domain);
220 288fd238 2021-04-25 op 	while ((linelen = getline(&line, &linesize, f)) != -1) {
221 288fd238 2021-04-25 op 		if ((t = strstr(line, entry.domain)) != NULL &&
222 288fd238 2021-04-25 op 		    (line[l] == ' ' || line[l] == '\t'))
223 288fd238 2021-04-25 op 			continue;
224 288fd238 2021-04-25 op 		/* line has a trailing \n */
225 288fd238 2021-04-25 op 		fprintf(tmp, "%s", line);
226 288fd238 2021-04-25 op 	}
227 288fd238 2021-04-25 op 	fprintf(tmp, "%s %s %d\n", entry.domain, entry.hash, entry.verified);
228 288fd238 2021-04-25 op 
229 288fd238 2021-04-25 op 	free(line);
230 288fd238 2021-04-25 op 	e = ferror(tmp);
231 288fd238 2021-04-25 op 
232 288fd238 2021-04-25 op 	fclose(tmp);
233 288fd238 2021-04-25 op 	fclose(f);
234 288fd238 2021-04-25 op 
235 288fd238 2021-04-25 op 	if (e) {
236 288fd238 2021-04-25 op 		unlink(sfn);
237 288fd238 2021-04-25 op 		res = 0;
238 288fd238 2021-04-25 op 		goto end;
239 288fd238 2021-04-25 op 	}
240 288fd238 2021-04-25 op 
241 288fd238 2021-04-25 op 	res = rename(sfn, known_hosts_file) != -1;
242 288fd238 2021-04-25 op 
243 288fd238 2021-04-25 op end:
244 288fd238 2021-04-25 op 	imsg_compose(ibuf, IMSG_UPDATE_CERT_OK, imsg->hdr.peerid, 0, -1,
245 3a227e9a 2021-03-18 op 	    &res, sizeof(res));
246 3a227e9a 2021-03-18 op 	imsg_flush(ibuf);
247 3a227e9a 2021-03-18 op }
248 3a227e9a 2021-03-18 op 
249 3a227e9a 2021-03-18 op static void
250 c7107cec 2021-04-01 op handle_session_start(struct imsg *imsg, size_t datalen)
251 c7107cec 2021-04-01 op {
252 c7107cec 2021-04-01 op 	if (datalen != 0)
253 c7107cec 2021-04-01 op 		die();
254 c7107cec 2021-04-01 op 
255 c7107cec 2021-04-01 op 	if ((session = fopen(session_file, "w")) == NULL)
256 c7107cec 2021-04-01 op 		die();
257 c7107cec 2021-04-01 op }
258 c7107cec 2021-04-01 op 
259 c7107cec 2021-04-01 op static void
260 c7107cec 2021-04-01 op handle_session_tab(struct imsg *imsg, size_t datalen)
261 c7107cec 2021-04-01 op {
262 c7107cec 2021-04-01 op 	if (session == NULL)
263 c7107cec 2021-04-01 op 		die();
264 c7107cec 2021-04-01 op 
265 c7107cec 2021-04-01 op 	if (datalen == 0)
266 c7107cec 2021-04-01 op 		die();
267 c7107cec 2021-04-01 op 
268 c7107cec 2021-04-01 op 	/* skip the NUL-terminator */
269 c7107cec 2021-04-01 op         fwrite(imsg->data, 1, datalen-1, session);
270 c7107cec 2021-04-01 op 
271 c7107cec 2021-04-01 op 	fprintf(session, "\n");
272 c7107cec 2021-04-01 op }
273 c7107cec 2021-04-01 op 
274 c7107cec 2021-04-01 op static void
275 c7107cec 2021-04-01 op handle_session_end(struct imsg *imsg, size_t datalen)
276 c7107cec 2021-04-01 op {
277 c7107cec 2021-04-01 op 	if (session == NULL)
278 c7107cec 2021-04-01 op 		die();
279 c7107cec 2021-04-01 op 	fclose(session);
280 c7107cec 2021-04-01 op 	session = NULL;
281 c7107cec 2021-04-01 op }
282 c7107cec 2021-04-01 op 
283 c7107cec 2021-04-01 op static void
284 1304bbdd 2021-03-15 op handle_dispatch_imsg(int fd, short ev, void *d)
285 35e1f40a 2021-03-14 op {
286 35e1f40a 2021-03-14 op 	struct imsgbuf	*ibuf = d;
287 1304bbdd 2021-03-15 op 	dispatch_imsg(ibuf, handlers, sizeof(handlers));
288 35e1f40a 2021-03-14 op }
289 35e1f40a 2021-03-14 op 
290 35e1f40a 2021-03-14 op int
291 3a227e9a 2021-03-18 op fs_init(void)
292 35e1f40a 2021-03-14 op {
293 63a715ea 2021-03-18 op 	char	dir[PATH_MAX];
294 63a715ea 2021-03-18 op 
295 63a715ea 2021-03-18 op 	strlcpy(dir, getenv("HOME"), sizeof(dir));
296 63a715ea 2021-03-18 op 	strlcat(dir, "/.telescope", sizeof(dir));
297 63a715ea 2021-03-18 op 	mkdir(dir, 0700);
298 35e1f40a 2021-03-14 op 
299 740f578b 2021-03-15 op 	strlcpy(bookmark_file, getenv("HOME"), sizeof(bookmark_file));
300 740f578b 2021-03-15 op 	strlcat(bookmark_file, "/.telescope/bookmarks.gmi", sizeof(bookmark_file));
301 740f578b 2021-03-15 op 
302 3a227e9a 2021-03-18 op 	strlcpy(known_hosts_file, getenv("HOME"), sizeof(known_hosts_file));
303 3a227e9a 2021-03-18 op 	strlcat(known_hosts_file, "/.telescope/known_hosts", sizeof(known_hosts_file));
304 3a227e9a 2021-03-18 op 
305 288fd238 2021-04-25 op 	strlcpy(known_hosts_tmp, getenv("HOME"), sizeof(known_hosts_tmp));
306 288fd238 2021-04-25 op 	strlcat(known_hosts_tmp, "/.telescope/known_hosts.tmp.XXXXXXXXXX",
307 288fd238 2021-04-25 op 	    sizeof(known_hosts_file));
308 288fd238 2021-04-25 op 
309 c7107cec 2021-04-01 op 	strlcpy(session_file, getenv("HOME"), sizeof(session_file));
310 c7107cec 2021-04-01 op 	strlcat(session_file, "/.telescope/session", sizeof(session_file));
311 c7107cec 2021-04-01 op 
312 3a227e9a 2021-03-18 op 	return 1;
313 3a227e9a 2021-03-18 op }
314 3a227e9a 2021-03-18 op 
315 3a227e9a 2021-03-18 op int
316 3a227e9a 2021-03-18 op fs_main(struct imsgbuf *b)
317 3a227e9a 2021-03-18 op {
318 3a227e9a 2021-03-18 op 	ibuf = b;
319 3a227e9a 2021-03-18 op 
320 35e1f40a 2021-03-14 op 	event_init();
321 35e1f40a 2021-03-14 op 
322 1304bbdd 2021-03-15 op 	event_set(&imsgev, ibuf->fd, EV_READ | EV_PERSIST, handle_dispatch_imsg, ibuf);
323 35e1f40a 2021-03-14 op 	event_add(&imsgev, NULL);
324 35e1f40a 2021-03-14 op 
325 35e1f40a 2021-03-14 op 	sandbox_fs_process();
326 35e1f40a 2021-03-14 op 
327 35e1f40a 2021-03-14 op 	event_dispatch();
328 35e1f40a 2021-03-14 op 	return 0;
329 35e1f40a 2021-03-14 op }
330 3a227e9a 2021-03-18 op 
331 3a227e9a 2021-03-18 op 
332 c6d03cf5 2021-04-25 op 
333 c6d03cf5 2021-04-25 op static int
334 c6d03cf5 2021-04-25 op parse_khost_line(char *line, char *tmp[3])
335 c6d03cf5 2021-04-25 op {
336 c6d03cf5 2021-04-25 op 	char **ap;
337 c6d03cf5 2021-04-25 op 
338 c6d03cf5 2021-04-25 op 	for (ap = tmp; ap < &tmp[3] &&
339 c6d03cf5 2021-04-25 op 	    (*ap = strsep(&line, " \t\n")) != NULL;) {
340 c6d03cf5 2021-04-25 op 		if (**ap != '\0')
341 c6d03cf5 2021-04-25 op 			ap++;
342 c6d03cf5 2021-04-25 op 	}
343 3a227e9a 2021-03-18 op 
344 c6d03cf5 2021-04-25 op 	return ap == &tmp[3] && *line == '\0';
345 c6d03cf5 2021-04-25 op }
346 c6d03cf5 2021-04-25 op 
347 3a227e9a 2021-03-18 op int
348 3a227e9a 2021-03-18 op load_certs(struct ohash *h)
349 3a227e9a 2021-03-18 op {
350 c6d03cf5 2021-04-25 op 	char		*tmp[3], *line = NULL;
351 6cd6a9e1 2021-03-20 op 	const char	*errstr;
352 ec1fa0b0 2021-04-25 op 	size_t		 lineno = 0, linesize = 0;
353 3a227e9a 2021-03-18 op 	ssize_t		 linelen;
354 3a227e9a 2021-03-18 op 	FILE		*f;
355 3a227e9a 2021-03-18 op 	struct tofu_entry *e;
356 3a227e9a 2021-03-18 op 
357 3a227e9a 2021-03-18 op 	if ((f = fopen(known_hosts_file, "r")) == NULL)
358 3a227e9a 2021-03-18 op 		return 0;
359 3a227e9a 2021-03-18 op 
360 3a227e9a 2021-03-18 op 	while ((linelen = getline(&line, &linesize, f)) != -1) {
361 3a227e9a 2021-03-18 op 		if ((e = calloc(1, sizeof(*e))) == NULL)
362 3a227e9a 2021-03-18 op 			abort();
363 3a227e9a 2021-03-18 op 
364 ec1fa0b0 2021-04-25 op 		lineno++;
365 3a227e9a 2021-03-18 op 
366 c6d03cf5 2021-04-25 op 		if (parse_khost_line(line, tmp)) {
367 c6d03cf5 2021-04-25 op 			strlcpy(e->domain, tmp[0], sizeof(e->domain));
368 c6d03cf5 2021-04-25 op 			strlcpy(e->hash, tmp[1], sizeof(e->hash));
369 3a227e9a 2021-03-18 op 
370 c6d03cf5 2021-04-25 op 			e->verified = strtonum(tmp[2], 0, 1, &errstr);
371 c6d03cf5 2021-04-25 op 			if (errstr != NULL)
372 c6d03cf5 2021-04-25 op 				errx(1, "%s:%zu verification for %s is %s: %s",
373 c6d03cf5 2021-04-25 op 				    known_hosts_file, lineno,
374 c6d03cf5 2021-04-25 op 				    e->domain, errstr, tmp[2]);
375 c6d03cf5 2021-04-25 op 			tofu_add(h, e);
376 c6d03cf5 2021-04-25 op 		} else {
377 ec1fa0b0 2021-04-25 op 			warnx("%s:%zu invalid entry",
378 ec1fa0b0 2021-04-25 op 			    known_hosts_file, lineno);
379 ec1fa0b0 2021-04-25 op 			free(e);
380 c6d03cf5 2021-04-25 op 		}
381 3a227e9a 2021-03-18 op 	}
382 3a227e9a 2021-03-18 op 
383 3a227e9a 2021-03-18 op 	free(line);
384 3a227e9a 2021-03-18 op 	return ferror(f);
385 3a227e9a 2021-03-18 op }
386 c7107cec 2021-04-01 op 
387 c7107cec 2021-04-01 op int
388 c7107cec 2021-04-01 op load_last_session(void (*cb)(const char*))
389 c7107cec 2021-04-01 op {
390 c7107cec 2021-04-01 op 	char	*nl, *line = NULL;
391 c7107cec 2021-04-01 op 	int	 e;
392 c7107cec 2021-04-01 op 	size_t	 linesize = 0;
393 c7107cec 2021-04-01 op 	ssize_t	 linelen;
394 c7107cec 2021-04-01 op 	FILE	*session;
395 c7107cec 2021-04-01 op 
396 c7107cec 2021-04-01 op 	if ((session = fopen(session_file, "r")) == NULL)
397 c7107cec 2021-04-01 op 		return 0;
398 c7107cec 2021-04-01 op 
399 c7107cec 2021-04-01 op 	while ((linelen = getline(&line, &linesize, session)) != -1) {
400 c7107cec 2021-04-01 op                 if ((nl = strchr(line, '\n')) != NULL)
401 c7107cec 2021-04-01 op 			*nl = '\0';
402 c7107cec 2021-04-01 op 		cb(line);
403 c7107cec 2021-04-01 op 	}
404 c7107cec 2021-04-01 op 
405 c7107cec 2021-04-01 op 	free(line);
406 c7107cec 2021-04-01 op 	e = ferror(session);
407 c7107cec 2021-04-01 op 	fclose(session);
408 c7107cec 2021-04-01 op 
409 c7107cec 2021-04-01 op 	return !e;
410 c7107cec 2021-04-01 op }