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1 5c7abf01 2021-12-29 op /*
2 5c7abf01 2021-12-29 op * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
3 5c7abf01 2021-12-29 op *
4 5c7abf01 2021-12-29 op * Permission to use, copy, modify, and distribute this software for any
5 5c7abf01 2021-12-29 op * purpose with or without fee is hereby granted, provided that the above
6 5c7abf01 2021-12-29 op * copyright notice and this permission notice appear in all copies.
7 5c7abf01 2021-12-29 op *
8 5c7abf01 2021-12-29 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 5c7abf01 2021-12-29 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 5c7abf01 2021-12-29 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 5c7abf01 2021-12-29 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 5c7abf01 2021-12-29 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 5c7abf01 2021-12-29 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 5c7abf01 2021-12-29 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 5c7abf01 2021-12-29 op */
16 5c7abf01 2021-12-29 op
17 5c7abf01 2021-12-29 op #include "gmid.h"
18 5c7abf01 2021-12-29 op
19 5c7abf01 2021-12-29 op #include <sys/socket.h>
20 5c7abf01 2021-12-29 op
21 5c7abf01 2021-12-29 op #include <assert.h>
22 5c7abf01 2021-12-29 op #include <ctype.h>
23 5c7abf01 2021-12-29 op #include <errno.h>
24 5c7abf01 2021-12-29 op #include <string.h>
25 5c7abf01 2021-12-29 op
26 5c7abf01 2021-12-29 op enum debug {
27 5c7abf01 2021-12-29 op DEBUG_NONE,
28 5c7abf01 2021-12-29 op DEBUG_CODE,
29 5c7abf01 2021-12-29 op DEBUG_HEADER,
30 5c7abf01 2021-12-29 op DEBUG_META,
31 e89f4739 2022-01-27 op DEBUG_ALL,
32 5c7abf01 2021-12-29 op };
33 5c7abf01 2021-12-29 op
34 5c7abf01 2021-12-29 op /* flags */
35 5c7abf01 2021-12-29 op int debug;
36 5c7abf01 2021-12-29 op int dont_verify_name;
37 5c7abf01 2021-12-29 op int flag2;
38 5c7abf01 2021-12-29 op int flag3;
39 5c7abf01 2021-12-29 op int nop;
40 5c7abf01 2021-12-29 op int redirects = 5;
41 5c7abf01 2021-12-29 op int timer;
42 5c7abf01 2021-12-29 op int verbose;
43 5c7abf01 2021-12-29 op const char *cert;
44 5c7abf01 2021-12-29 op const char *key;
45 5c7abf01 2021-12-29 op const char *proxy_host;
46 5c7abf01 2021-12-29 op const char *proxy_port;
47 5c7abf01 2021-12-29 op const char *sni;
48 5c7abf01 2021-12-29 op
49 5c7abf01 2021-12-29 op /* state */
50 5c7abf01 2021-12-29 op struct tls_config *tls_conf;
51 5c7abf01 2021-12-29 op
52 5c7abf01 2021-12-29 op static void
53 5c7abf01 2021-12-29 op timeout(int signo)
54 5c7abf01 2021-12-29 op {
55 5c7abf01 2021-12-29 op dprintf(2, "%s: timer expired\n", getprogname());
56 5c7abf01 2021-12-29 op exit(1);
57 5c7abf01 2021-12-29 op }
58 5c7abf01 2021-12-29 op
59 5c7abf01 2021-12-29 op static void
60 5c7abf01 2021-12-29 op load_tls_conf(void)
61 5c7abf01 2021-12-29 op {
62 5c7abf01 2021-12-29 op if ((tls_conf = tls_config_new()) == NULL)
63 5c7abf01 2021-12-29 op err(1, "tls_config_new");
64 5c7abf01 2021-12-29 op
65 5c7abf01 2021-12-29 op tls_config_insecure_noverifycert(tls_conf);
66 5c7abf01 2021-12-29 op if (dont_verify_name)
67 5c7abf01 2021-12-29 op tls_config_insecure_noverifyname(tls_conf);
68 5c7abf01 2021-12-29 op
69 5c7abf01 2021-12-29 op if (flag2 &&
70 5c7abf01 2021-12-29 op tls_config_set_protocols(tls_conf, TLS_PROTOCOL_TLSv1_2) == -1)
71 5c7abf01 2021-12-29 op errx(1, "can't set TLSv1.2");
72 5c7abf01 2021-12-29 op if (flag3 &&
73 5c7abf01 2021-12-29 op tls_config_set_protocols(tls_conf, TLS_PROTOCOL_TLSv1_3) == -1)
74 5c7abf01 2021-12-29 op errx(1, "can't set TLSv1.3");
75 5c7abf01 2021-12-29 op
76 5c7abf01 2021-12-29 op if (cert != NULL &&
77 5c7abf01 2021-12-29 op tls_config_set_keypair_file(tls_conf, cert, key) == -1)
78 5c7abf01 2021-12-29 op errx(1, "can't load client certificate %s", cert);
79 5c7abf01 2021-12-29 op }
80 5c7abf01 2021-12-29 op
81 5c7abf01 2021-12-29 op static void
82 5c7abf01 2021-12-29 op connectto(struct tls *ctx, const char *host, const char *port)
83 5c7abf01 2021-12-29 op {
84 5c7abf01 2021-12-29 op struct addrinfo hints, *res, *res0;
85 5c7abf01 2021-12-29 op int error;
86 5c7abf01 2021-12-29 op int saved_errno;
87 5c7abf01 2021-12-29 op int s;
88 5c7abf01 2021-12-29 op const char *cause = NULL;
89 5c7abf01 2021-12-29 op const char *sname;
90 5c7abf01 2021-12-29 op
91 5c7abf01 2021-12-29 op if (proxy_host != NULL) {
92 5c7abf01 2021-12-29 op host = proxy_host;
93 5c7abf01 2021-12-29 op port = proxy_port;
94 5c7abf01 2021-12-29 op }
95 5c7abf01 2021-12-29 op
96 5c7abf01 2021-12-29 op if ((sname = sni) == NULL)
97 5c7abf01 2021-12-29 op sname = host;
98 5c7abf01 2021-12-29 op
99 5c7abf01 2021-12-29 op memset(&hints, 0, sizeof(hints));
100 5c7abf01 2021-12-29 op hints.ai_family = AF_UNSPEC;
101 5c7abf01 2021-12-29 op hints.ai_socktype = SOCK_STREAM;
102 5c7abf01 2021-12-29 op error = getaddrinfo(host, port, &hints, &res0);
103 5c7abf01 2021-12-29 op if (error)
104 5c7abf01 2021-12-29 op errx(1, "%s", gai_strerror(error));
105 5c7abf01 2021-12-29 op
106 5c7abf01 2021-12-29 op s = -1;
107 5c7abf01 2021-12-29 op for (res = res0; res != NULL; res = res->ai_next) {
108 5c7abf01 2021-12-29 op s = socket(res->ai_family, res->ai_socktype,
109 5c7abf01 2021-12-29 op res->ai_protocol);
110 5c7abf01 2021-12-29 op if (s == -1) {
111 5c7abf01 2021-12-29 op cause = "socket";
112 5c7abf01 2021-12-29 op continue;
113 5c7abf01 2021-12-29 op }
114 5c7abf01 2021-12-29 op
115 5c7abf01 2021-12-29 op if (connect(s, res->ai_addr, res->ai_addrlen) == -1) {
116 5c7abf01 2021-12-29 op cause = "connect";
117 5c7abf01 2021-12-29 op saved_errno = errno;
118 5c7abf01 2021-12-29 op close(s);
119 5c7abf01 2021-12-29 op errno = saved_errno;
120 5c7abf01 2021-12-29 op s = -1;
121 5c7abf01 2021-12-29 op continue;
122 5c7abf01 2021-12-29 op }
123 5c7abf01 2021-12-29 op
124 5c7abf01 2021-12-29 op break;
125 5c7abf01 2021-12-29 op }
126 5c7abf01 2021-12-29 op
127 5c7abf01 2021-12-29 op if (s == -1)
128 5c7abf01 2021-12-29 op err(1, "%s: can't connect to %s:%s", cause,
129 5c7abf01 2021-12-29 op host, port);
130 5c7abf01 2021-12-29 op
131 5c7abf01 2021-12-29 op freeaddrinfo(res0);
132 5c7abf01 2021-12-29 op
133 5c7abf01 2021-12-29 op if (tls_connect_socket(ctx, s, sname) == -1)
134 5c7abf01 2021-12-29 op errx(1, "tls_connect_socket: %s", tls_error(ctx));
135 5c7abf01 2021-12-29 op }
136 5c7abf01 2021-12-29 op
137 5c7abf01 2021-12-29 op static void
138 5c7abf01 2021-12-29 op doreq(struct tls *ctx, const char *buf)
139 5c7abf01 2021-12-29 op {
140 5c7abf01 2021-12-29 op size_t s;
141 5c7abf01 2021-12-29 op ssize_t w;
142 5c7abf01 2021-12-29 op
143 5c7abf01 2021-12-29 op s = strlen(buf);
144 5c7abf01 2021-12-29 op while (s != 0) {
145 5c7abf01 2021-12-29 op switch (w = tls_write(ctx, buf, s)) {
146 5c7abf01 2021-12-29 op case 0:
147 5c7abf01 2021-12-29 op case -1:
148 5c7abf01 2021-12-29 op errx(1, "tls_write: %s", tls_error(ctx));
149 5c7abf01 2021-12-29 op case TLS_WANT_POLLIN:
150 5c7abf01 2021-12-29 op case TLS_WANT_POLLOUT:
151 5c7abf01 2021-12-29 op continue;
152 5c7abf01 2021-12-29 op }
153 5c7abf01 2021-12-29 op
154 5c7abf01 2021-12-29 op s -= w;
155 5c7abf01 2021-12-29 op buf += w;
156 5c7abf01 2021-12-29 op }
157 5c7abf01 2021-12-29 op }
158 5c7abf01 2021-12-29 op
159 5c7abf01 2021-12-29 op static size_t
160 5c7abf01 2021-12-29 op dorep(struct tls *ctx, void *buf, size_t len)
161 5c7abf01 2021-12-29 op {
162 5c7abf01 2021-12-29 op ssize_t w;
163 5c7abf01 2021-12-29 op size_t tot = 0;
164 5c7abf01 2021-12-29 op
165 5c7abf01 2021-12-29 op while (len != 0) {
166 5c7abf01 2021-12-29 op switch (w = tls_read(ctx, buf, len)) {
167 5c7abf01 2021-12-29 op case 0:
168 5c7abf01 2021-12-29 op return tot;
169 5c7abf01 2021-12-29 op case -1:
170 5c7abf01 2021-12-29 op errx(1, "tls_write: %s", tls_error(ctx));
171 5c7abf01 2021-12-29 op case TLS_WANT_POLLIN:
172 5c7abf01 2021-12-29 op case TLS_WANT_POLLOUT:
173 5c7abf01 2021-12-29 op continue;
174 5c7abf01 2021-12-29 op }
175 5c7abf01 2021-12-29 op
176 5c7abf01 2021-12-29 op len -= w;
177 5c7abf01 2021-12-29 op buf += w;
178 5c7abf01 2021-12-29 op tot += w;
179 5c7abf01 2021-12-29 op }
180 5c7abf01 2021-12-29 op
181 5c7abf01 2021-12-29 op return tot;
182 5c7abf01 2021-12-29 op }
183 5c7abf01 2021-12-29 op
184 5c7abf01 2021-12-29 op static int
185 5c7abf01 2021-12-29 op get(const char *r)
186 5c7abf01 2021-12-29 op {
187 5c7abf01 2021-12-29 op struct tls *ctx;
188 5c7abf01 2021-12-29 op struct iri iri;
189 5c7abf01 2021-12-29 op int foundhdr = 0, code = -1, od;
190 5c7abf01 2021-12-29 op char iribuf[GEMINI_URL_LEN];
191 5c7abf01 2021-12-29 op char req[GEMINI_URL_LEN];
192 5c7abf01 2021-12-29 op char buf[2048];
193 5c7abf01 2021-12-29 op const char *parse_err, *host, *port;
194 5c7abf01 2021-12-29 op
195 5c7abf01 2021-12-29 op if (strlcpy(iribuf, r, sizeof(iribuf)) >= sizeof(iribuf))
196 5c7abf01 2021-12-29 op errx(1, "iri too long: %s", r);
197 5c7abf01 2021-12-29 op
198 5c7abf01 2021-12-29 op if (strlcpy(req, r, sizeof(req)) >= sizeof(req))
199 5c7abf01 2021-12-29 op errx(1, "iri too long: %s", r);
200 5c7abf01 2021-12-29 op
201 5c7abf01 2021-12-29 op if (strlcat(req, "\r\n", sizeof(req)) >= sizeof(req))
202 5c7abf01 2021-12-29 op errx(1, "iri too long: %s", r);
203 5c7abf01 2021-12-29 op
204 5c7abf01 2021-12-29 op if (!parse_iri(iribuf, &iri, &parse_err))
205 5c7abf01 2021-12-29 op errx(1, "invalid IRI: %s", parse_err);
206 5c7abf01 2021-12-29 op
207 5c7abf01 2021-12-29 op if (nop)
208 5c7abf01 2021-12-29 op errx(0, "IRI OK");
209 5c7abf01 2021-12-29 op
210 5c7abf01 2021-12-29 op if ((ctx = tls_client()) == NULL)
211 5c7abf01 2021-12-29 op errx(1, "can't create tls context");
212 5c7abf01 2021-12-29 op
213 5c7abf01 2021-12-29 op if (tls_configure(ctx, tls_conf) == -1)
214 5c7abf01 2021-12-29 op errx(1, "tls_configure: %s", tls_error(ctx));
215 5c7abf01 2021-12-29 op
216 5c7abf01 2021-12-29 op host = iri.host;
217 5c7abf01 2021-12-29 op port = "1965";
218 5c7abf01 2021-12-29 op if (*iri.port != '\0')
219 5c7abf01 2021-12-29 op port = iri.port;
220 5c7abf01 2021-12-29 op
221 5c7abf01 2021-12-29 op connectto(ctx, host, port);
222 5c7abf01 2021-12-29 op
223 5c7abf01 2021-12-29 op od = 0;
224 5c7abf01 2021-12-29 op while (!od) {
225 5c7abf01 2021-12-29 op switch (tls_handshake(ctx)) {
226 5c7abf01 2021-12-29 op case 0:
227 5c7abf01 2021-12-29 op od = 1;
228 5c7abf01 2021-12-29 op break;
229 5c7abf01 2021-12-29 op case -1:
230 5c7abf01 2021-12-29 op errx(1, "handshake: %s", tls_error(ctx));
231 5c7abf01 2021-12-29 op }
232 5c7abf01 2021-12-29 op }
233 5c7abf01 2021-12-29 op
234 5c7abf01 2021-12-29 op if (verbose)
235 5c7abf01 2021-12-29 op printf("%s", req);
236 5c7abf01 2021-12-29 op
237 5c7abf01 2021-12-29 op doreq(ctx, req);
238 5c7abf01 2021-12-29 op
239 5c7abf01 2021-12-29 op for (;;) {
240 5c7abf01 2021-12-29 op char *t;
241 5c7abf01 2021-12-29 op size_t len;
242 5c7abf01 2021-12-29 op
243 5c7abf01 2021-12-29 op len = dorep(ctx, buf, sizeof(buf));
244 5c7abf01 2021-12-29 op if (len == 0)
245 5c7abf01 2021-12-29 op goto close;
246 5c7abf01 2021-12-29 op
247 5c7abf01 2021-12-29 op if (foundhdr) {
248 5c7abf01 2021-12-29 op write(1, buf, len);
249 5c7abf01 2021-12-29 op continue;
250 5c7abf01 2021-12-29 op }
251 5c7abf01 2021-12-29 op foundhdr = 1;
252 5c7abf01 2021-12-29 op
253 5c7abf01 2021-12-29 op if (memmem(buf, len, "\r\n", 2) == NULL)
254 5c7abf01 2021-12-29 op errx(1, "invalid reply: no \\r\\n");
255 5c7abf01 2021-12-29 op if (!isdigit(buf[0]) || !isdigit(buf[1]) || buf[2] != ' ')
256 5c7abf01 2021-12-29 op errx(1, "invalid reply: invalid response format");
257 5c7abf01 2021-12-29 op
258 5c7abf01 2021-12-29 op code = (buf[0] - '0') * 10 + buf[1] - '0';
259 5c7abf01 2021-12-29 op
260 5c7abf01 2021-12-29 op if (debug == DEBUG_CODE) {
261 5c7abf01 2021-12-29 op printf("%d\n", code);
262 5c7abf01 2021-12-29 op goto close;
263 5c7abf01 2021-12-29 op }
264 5c7abf01 2021-12-29 op
265 5c7abf01 2021-12-29 op if (debug == DEBUG_HEADER) {
266 5c7abf01 2021-12-29 op t = memmem(buf, len, "\r\n", 2);
267 5c7abf01 2021-12-29 op assert(t != NULL);
268 5c7abf01 2021-12-29 op *t = '\0';
269 5c7abf01 2021-12-29 op printf("%s\n", buf);
270 5c7abf01 2021-12-29 op goto close;
271 5c7abf01 2021-12-29 op }
272 5c7abf01 2021-12-29 op
273 5c7abf01 2021-12-29 op if (debug == DEBUG_META) {
274 5c7abf01 2021-12-29 op t = memmem(buf, len, "\r\n", 2);
275 5c7abf01 2021-12-29 op assert(t != NULL);
276 5c7abf01 2021-12-29 op *t = '\0';
277 5c7abf01 2021-12-29 op printf("%s\n", buf+3);
278 5c7abf01 2021-12-29 op goto close;
279 5c7abf01 2021-12-29 op }
280 5c7abf01 2021-12-29 op
281 e89f4739 2022-01-27 op if (debug == DEBUG_ALL) {
282 5c7abf01 2021-12-29 op write(1, buf, len);
283 5c7abf01 2021-12-29 op continue;
284 5c7abf01 2021-12-29 op }
285 5c7abf01 2021-12-29 op
286 5c7abf01 2021-12-29 op /* skip the header */
287 5c7abf01 2021-12-29 op t = memmem(buf, len, "\r\n", 2);
288 5c7abf01 2021-12-29 op assert(t != NULL);
289 5c7abf01 2021-12-29 op t += 2; /* skip \r\n */
290 5c7abf01 2021-12-29 op len -= t - buf;
291 5c7abf01 2021-12-29 op write(1, t, len);
292 5c7abf01 2021-12-29 op }
293 5c7abf01 2021-12-29 op
294 5c7abf01 2021-12-29 op close:
295 5c7abf01 2021-12-29 op od = tls_close(ctx);
296 5c7abf01 2021-12-29 op if (od == TLS_WANT_POLLIN || od == TLS_WANT_POLLOUT)
297 5c7abf01 2021-12-29 op goto close;
298 5c7abf01 2021-12-29 op
299 5c7abf01 2021-12-29 op tls_close(ctx);
300 5c7abf01 2021-12-29 op tls_free(ctx);
301 5c7abf01 2021-12-29 op return code;
302 5c7abf01 2021-12-29 op }
303 5c7abf01 2021-12-29 op
304 5c7abf01 2021-12-29 op static void __attribute__((noreturn))
305 5c7abf01 2021-12-29 op usage(void)
306 5c7abf01 2021-12-29 op {
307 5c7abf01 2021-12-29 op fprintf(stderr, "usage: %s [-23Nnv] [-C cert] [-d mode] [-H sni] "
308 febfcde8 2022-01-13 op "[-K key] [-P host[:port]]\n",
309 5c7abf01 2021-12-29 op getprogname());
310 5c7abf01 2021-12-29 op fprintf(stderr, " [-T seconds] gemini://...\n");
311 5c7abf01 2021-12-29 op exit(1);
312 5c7abf01 2021-12-29 op }
313 5c7abf01 2021-12-29 op
314 5c7abf01 2021-12-29 op static int
315 5c7abf01 2021-12-29 op parse_debug(const char *arg)
316 5c7abf01 2021-12-29 op {
317 5c7abf01 2021-12-29 op if (!strcmp(arg, "none"))
318 5c7abf01 2021-12-29 op return DEBUG_NONE;
319 5c7abf01 2021-12-29 op if (!strcmp(arg, "code"))
320 5c7abf01 2021-12-29 op return DEBUG_CODE;
321 5c7abf01 2021-12-29 op if (!strcmp(arg, "header"))
322 5c7abf01 2021-12-29 op return DEBUG_HEADER;
323 5c7abf01 2021-12-29 op if (!strcmp(arg, "meta"))
324 5c7abf01 2021-12-29 op return DEBUG_META;
325 e89f4739 2022-01-27 op if (!strcmp(arg, "all"))
326 e89f4739 2022-01-27 op return DEBUG_ALL;
327 5c7abf01 2021-12-29 op usage();
328 5c7abf01 2021-12-29 op }
329 5c7abf01 2021-12-29 op
330 5c7abf01 2021-12-29 op static void
331 5c7abf01 2021-12-29 op parse_proxy(const char *arg)
332 5c7abf01 2021-12-29 op {
333 5c7abf01 2021-12-29 op char *at;
334 5c7abf01 2021-12-29 op
335 5c7abf01 2021-12-29 op if ((proxy_host = strdup(arg)) == NULL)
336 5c7abf01 2021-12-29 op err(1, "strdup");
337 5c7abf01 2021-12-29 op
338 5c7abf01 2021-12-29 op proxy_port = "1965";
339 5c7abf01 2021-12-29 op
340 5c7abf01 2021-12-29 op if ((at = strchr(proxy_host, ':')) == NULL)
341 5c7abf01 2021-12-29 op return;
342 5c7abf01 2021-12-29 op *at = '\0';
343 5c7abf01 2021-12-29 op proxy_port = ++at;
344 5c7abf01 2021-12-29 op
345 5c7abf01 2021-12-29 op if (strchr(proxy_port, ':') != NULL)
346 5c7abf01 2021-12-29 op errx(1, "invalid port %s", proxy_port);
347 5c7abf01 2021-12-29 op }
348 5c7abf01 2021-12-29 op
349 5c7abf01 2021-12-29 op int
350 5c7abf01 2021-12-29 op main(int argc, char **argv)
351 5c7abf01 2021-12-29 op {
352 5c7abf01 2021-12-29 op int ch, code;
353 5c7abf01 2021-12-29 op const char *errstr;
354 5c7abf01 2021-12-29 op
355 5c7abf01 2021-12-29 op while ((ch = getopt(argc, argv, "23C:d:H:K:NP:T:v")) != -1) {
356 5c7abf01 2021-12-29 op switch (ch) {
357 5c7abf01 2021-12-29 op case '2':
358 5c7abf01 2021-12-29 op flag2 = 1;
359 5c7abf01 2021-12-29 op break;
360 5c7abf01 2021-12-29 op case '3':
361 5c7abf01 2021-12-29 op flag3 = 1;
362 5c7abf01 2021-12-29 op break;
363 5c7abf01 2021-12-29 op case 'C':
364 5c7abf01 2021-12-29 op cert = optarg;
365 5c7abf01 2021-12-29 op break;
366 5c7abf01 2021-12-29 op case 'd':
367 5c7abf01 2021-12-29 op debug = parse_debug(optarg);
368 5c7abf01 2021-12-29 op break;
369 5c7abf01 2021-12-29 op case 'H':
370 5c7abf01 2021-12-29 op sni = optarg;
371 5c7abf01 2021-12-29 op break;
372 5c7abf01 2021-12-29 op case 'K':
373 5c7abf01 2021-12-29 op key = optarg;
374 5c7abf01 2021-12-29 op break;
375 5c7abf01 2021-12-29 op case 'N':
376 5c7abf01 2021-12-29 op dont_verify_name = 1;
377 5c7abf01 2021-12-29 op break;
378 5c7abf01 2021-12-29 op case 'n':
379 5c7abf01 2021-12-29 op nop = 1;
380 5c7abf01 2021-12-29 op break;
381 5c7abf01 2021-12-29 op case 'P':
382 5c7abf01 2021-12-29 op parse_proxy(optarg);
383 5c7abf01 2021-12-29 op dont_verify_name = 1;
384 5c7abf01 2021-12-29 op break;
385 5c7abf01 2021-12-29 op case 'T':
386 5c7abf01 2021-12-29 op timer = strtonum(optarg, 1, 1000, &errstr);
387 5c7abf01 2021-12-29 op if (errstr != NULL)
388 5c7abf01 2021-12-29 op errx(1, "timeout is %s: %s",
389 5c7abf01 2021-12-29 op errstr, optarg);
390 5c7abf01 2021-12-29 op signal(SIGALRM, timeout);
391 5c7abf01 2021-12-29 op alarm(timer);
392 5c7abf01 2021-12-29 op break;
393 5c7abf01 2021-12-29 op case 'v':
394 5c7abf01 2021-12-29 op verbose++;
395 5c7abf01 2021-12-29 op break;
396 5c7abf01 2021-12-29 op default:
397 5c7abf01 2021-12-29 op usage();
398 5c7abf01 2021-12-29 op }
399 5c7abf01 2021-12-29 op }
400 5c7abf01 2021-12-29 op argc -= optind;
401 5c7abf01 2021-12-29 op argv += optind;
402 5c7abf01 2021-12-29 op
403 5c7abf01 2021-12-29 op if (flag2 + flag3 > 1) {
404 5c7abf01 2021-12-29 op warnx("only -2 or -3 can be specified at the same time");
405 5c7abf01 2021-12-29 op usage();
406 5c7abf01 2021-12-29 op }
407 5c7abf01 2021-12-29 op
408 5c7abf01 2021-12-29 op if ((cert != NULL && key == NULL) ||
409 5c7abf01 2021-12-29 op (cert == NULL && key != NULL)) {
410 5c7abf01 2021-12-29 op warnx("cert or key is missing");
411 5c7abf01 2021-12-29 op usage();
412 5c7abf01 2021-12-29 op }
413 5c7abf01 2021-12-29 op
414 b3602923 2022-01-13 op if (argc != 1)
415 b3602923 2022-01-13 op usage();
416 5c7abf01 2021-12-29 op
417 5c7abf01 2021-12-29 op load_tls_conf();
418 b3602923 2022-01-13 op
419 b3602923 2022-01-13 op signal(SIGPIPE, SIG_IGN);
420 5c7abf01 2021-12-29 op
421 5c7abf01 2021-12-29 op #ifdef __OpenBSD__
422 5c7abf01 2021-12-29 op if (pledge("stdio inet dns", NULL) == -1)
423 5c7abf01 2021-12-29 op err(1, "pledge");
424 5c7abf01 2021-12-29 op #endif
425 5c7abf01 2021-12-29 op
426 5c7abf01 2021-12-29 op code = get(*argv);
427 5c7abf01 2021-12-29 op
428 5c7abf01 2021-12-29 op return code < 20 || code >= 30;
429 5c7abf01 2021-12-29 op }