2 3e4749f7 2020-10-02 op * Copyright (c) 2020 Omar Polo <op@omarpolo.com>
4 3e4749f7 2020-10-02 op * Permission to use, copy, modify, and distribute this software for any
5 3e4749f7 2020-10-02 op * purpose with or without fee is hereby granted, provided that the above
6 3e4749f7 2020-10-02 op * copyright notice and this permission notice appear in all copies.
8 3e4749f7 2020-10-02 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 3e4749f7 2020-10-02 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 3e4749f7 2020-10-02 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 3e4749f7 2020-10-02 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 3e4749f7 2020-10-02 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 3e4749f7 2020-10-02 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 3e4749f7 2020-10-02 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 8443bff7 2021-01-25 op #include <sys/stat.h>
19 592fd624 2020-10-07 op #include <errno.h>
20 3e4749f7 2020-10-02 op #include <fcntl.h>
21 231bfcdc 2020-12-21 op #include <limits.h>
22 709d6e5e 2021-01-10 op #include <netdb.h>
23 ae08ec7d 2021-01-25 op #include <pwd.h>
24 0cf902af 2020-11-03 op #include <signal.h>
25 80bbcad5 2021-01-10 op #include <stdarg.h>
26 3e4749f7 2020-10-02 op #include <string.h>
28 8443bff7 2021-01-25 op #include <openssl/pem.h>
29 8443bff7 2021-01-25 op #include <openssl/x509.h>
31 488f059a 2020-12-24 op #include "gmid.h"
33 15902770 2021-01-15 op struct vhost hosts[HOSTSLEN];
39 15902770 2021-01-15 op struct conf conf;
41 ae08ec7d 2021-01-25 op struct tls *ctx;
44 80bbcad5 2021-01-10 op fatal(const char *fmt, ...)
48 80bbcad5 2021-01-10 op va_start(ap, fmt);
50 15902770 2021-01-15 op if (conf.foreground) {
51 80bbcad5 2021-01-10 op vfprintf(stderr, fmt, ap);
52 80bbcad5 2021-01-10 op fprintf(stderr, "\n");
54 80bbcad5 2021-01-10 op vsyslog(LOG_DAEMON | LOG_CRIT, fmt, ap);
61 709d6e5e 2021-01-10 op logs(int priority, struct client *c,
62 709d6e5e 2021-01-10 op const char *fmt, ...)
64 709d6e5e 2021-01-10 op char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
65 709d6e5e 2021-01-10 op char *fmted, *s;
70 80bbcad5 2021-01-10 op va_start(ap, fmt);
72 dafb57b8 2021-01-15 op if (c == NULL) {
73 dafb57b8 2021-01-15 op strncpy(hbuf, "<internal>", sizeof(hbuf));
74 dafb57b8 2021-01-15 op sbuf[0] = '\0';
76 dafb57b8 2021-01-15 op len = sizeof(c->addr);
77 dafb57b8 2021-01-15 op ec = getnameinfo((struct sockaddr*)&c->addr, len,
78 f7b816dc 2021-01-15 op hbuf, sizeof(hbuf),
79 f7b816dc 2021-01-15 op sbuf, sizeof(sbuf),
80 f7b816dc 2021-01-15 op NI_NUMERICHOST | NI_NUMERICSERV);
82 dafb57b8 2021-01-15 op fatal("getnameinfo: %s", gai_strerror(ec));
85 709d6e5e 2021-01-10 op if (vasprintf(&fmted, fmt, ap) == -1)
86 709d6e5e 2021-01-10 op fatal("vasprintf: %s", strerror(errno));
88 15902770 2021-01-15 op if (conf.foreground)
89 709d6e5e 2021-01-10 op fprintf(stderr, "%s:%s %s\n", hbuf, sbuf, fmted);
91 709d6e5e 2021-01-10 op if (asprintf(&s, "%s:%s %s", hbuf, sbuf, fmted) == -1)
92 709d6e5e 2021-01-10 op fatal("asprintf: %s", strerror(errno));
93 709d6e5e 2021-01-10 op syslog(priority | LOG_DAEMON, "%s", s);
102 0be51733 2021-01-20 op /* strchr, but with a bound */
103 0be51733 2021-01-20 op static char *
104 0be51733 2021-01-20 op gmid_strnchr(char *s, int c, size_t len)
108 0be51733 2021-01-20 op for (i = 0; i < len; ++i)
109 0be51733 2021-01-20 op if (s[i] == c)
110 0be51733 2021-01-20 op return &s[i];
115 0be51733 2021-01-20 op log_request(struct client *c, char *meta, size_t l)
117 0be51733 2021-01-20 op char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV], b[GEMINI_URL_LEN];
122 0be51733 2021-01-20 op len = sizeof(c->addr);
123 0be51733 2021-01-20 op ec = getnameinfo((struct sockaddr*)&c->addr, len,
124 0be51733 2021-01-20 op hbuf, sizeof(hbuf),
125 0be51733 2021-01-20 op sbuf, sizeof(sbuf),
126 0be51733 2021-01-20 op NI_NUMERICHOST | NI_NUMERICSERV);
128 0be51733 2021-01-20 op fatal("getnameinfo: %s", gai_strerror(ec));
130 0ab65593 2021-01-21 op if (c->iri.schema != NULL) {
131 0ab65593 2021-01-21 op /* serialize the IRI */
132 0ab65593 2021-01-21 op strlcpy(b, c->iri.schema, sizeof(b));
133 0ab65593 2021-01-21 op strlcat(b, "://", sizeof(b));
135 3300cbe0 2021-01-27 op /* log the decoded host name, but if it was invalid
136 3300cbe0 2021-01-27 op * use the raw one. */
137 3300cbe0 2021-01-27 op if (*c->domain != '\0')
138 3300cbe0 2021-01-27 op strlcat(b, c->domain, sizeof(b));
140 3300cbe0 2021-01-27 op strlcat(b, c->iri.host, sizeof(b));
142 0ab65593 2021-01-21 op strlcat(b, "/", sizeof(b));
143 0ab65593 2021-01-21 op strlcat(b, c->iri.path, sizeof(b)); /* TODO: sanitize UTF8 */
144 0ab65593 2021-01-21 op if (*c->iri.query != '\0') { /* TODO: sanitize UTF8 */
145 0ab65593 2021-01-21 op strlcat(b, "?", sizeof(b));
146 0ab65593 2021-01-21 op strlcat(b, c->iri.query, sizeof(b));
149 0ab65593 2021-01-21 op strlcpy(b, c->req, sizeof(b));
152 0be51733 2021-01-20 op if ((t = gmid_strnchr(meta, '\r', l)) == NULL)
153 0be51733 2021-01-20 op t = meta + len;
155 0be51733 2021-01-20 op if (conf.foreground)
156 0be51733 2021-01-20 op fprintf(stderr, "%s:%s GET %s %.*s\n", hbuf, sbuf, b,
157 0be51733 2021-01-20 op (int)(t - meta), meta);
159 0be51733 2021-01-20 op syslog(LOG_INFO | LOG_DAEMON, "%s:%s GET %s %.*s",
160 0be51733 2021-01-20 op hbuf, sbuf, b, (int)(t - meta), meta);
164 4a28dd01 2020-12-28 op sig_handler(int sig)
170 72f653b6 2020-11-06 op starts_with(const char *str, const char *prefix)
174 252908e6 2021-01-24 op if (prefix == NULL)
177 72f653b6 2020-11-06 op for (i = 0; prefix[i] != '\0'; ++i)
178 72f653b6 2020-11-06 op if (str[i] != prefix[i])
184 f77a8c86 2021-01-21 op ends_with(const char *str, const char *sufx)
188 f77a8c86 2021-01-21 op i = strlen(str);
189 f77a8c86 2021-01-21 op j = strlen(sufx);
195 f77a8c86 2021-01-21 op for (j = 0; str[i] != '\0'; i++, j++)
196 f77a8c86 2021-01-21 op if (str[i] != sufx[j])
202 f28f9311 2020-10-14 op filesize(int fd)
206 f28f9311 2020-10-14 op if ((len = lseek(fd, 0, SEEK_END)) == -1)
208 f28f9311 2020-10-14 op if (lseek(fd, 0, SEEK_SET) == -1)
214 d3a08f4d 2021-01-17 op absolutify_path(const char *path)
216 d3a08f4d 2021-01-17 op char *wd, *r;
218 d3a08f4d 2021-01-17 op if (*path == '/')
219 d3a08f4d 2021-01-17 op return strdup(path);
221 d3a08f4d 2021-01-17 op wd = getcwd(NULL, 0);
222 d3a08f4d 2021-01-17 op if (asprintf(&r, "%s/%s", wd, path) == -1)
223 132cae8c 2021-01-18 op fatal("asprintf: %s", strerror(errno));
229 8443bff7 2021-01-25 op gen_certificate(const char *host, const char *certpath, const char *keypath)
232 8443bff7 2021-01-25 op EVP_PKEY *pkey;
235 8443bff7 2021-01-25 op X509_NAME *name;
237 8443bff7 2021-01-25 op const char *org = "gmid";
239 8443bff7 2021-01-25 op LOGN(NULL, "generating a new certificate for %s in %s (it could take a while)",
240 8443bff7 2021-01-25 op host, certpath);
242 8443bff7 2021-01-25 op if ((pkey = EVP_PKEY_new()) == NULL)
243 8443bff7 2021-01-25 op fatal("couldn't create a new private key");
245 8443bff7 2021-01-25 op if ((rsa = RSA_new()) == NULL)
246 8443bff7 2021-01-25 op fatal("could'nt generate rsa");
249 8443bff7 2021-01-25 op BN_set_word(&e, 17);
250 8443bff7 2021-01-25 op if (!RSA_generate_key_ex(rsa, 4096, &e, NULL))
251 8443bff7 2021-01-25 op fatal("couldn't generate a rsa key");
253 8443bff7 2021-01-25 op if (!EVP_PKEY_assign_RSA(pkey, rsa))
254 8443bff7 2021-01-25 op fatal("couldn't assign the key");
256 8443bff7 2021-01-25 op if ((x509 = X509_new()) == NULL)
257 8443bff7 2021-01-25 op fatal("couldn't generate the X509 certificate");
259 8443bff7 2021-01-25 op ASN1_INTEGER_set(X509_get_serialNumber(x509), 1);
260 8443bff7 2021-01-25 op X509_gmtime_adj(X509_get_notBefore(x509), 0);
261 8443bff7 2021-01-25 op X509_gmtime_adj(X509_get_notAfter(x509), 315360000L); /* 10 years */
263 8443bff7 2021-01-25 op if (!X509_set_pubkey(x509, pkey))
264 8443bff7 2021-01-25 op fatal("couldn't set the public key");
266 8443bff7 2021-01-25 op name = X509_get_subject_name(x509);
267 8443bff7 2021-01-25 op if (!X509_NAME_add_entry_by_txt(name, "O", MBSTRING_ASC, org, -1, -1, 0))
268 8443bff7 2021-01-25 op fatal("couldn't add N to cert");
269 8443bff7 2021-01-25 op if (!X509_NAME_add_entry_by_txt(name, "CN", MBSTRING_ASC, host, -1, -1, 0))
270 8443bff7 2021-01-25 op fatal("couldn't add CN to cert");
271 8443bff7 2021-01-25 op X509_set_issuer_name(x509, name);
273 8443bff7 2021-01-25 op if (!X509_sign(x509, pkey, EVP_sha256()))
274 8443bff7 2021-01-25 op fatal("couldn't sign the certificate");
276 8443bff7 2021-01-25 op if ((f = fopen(keypath, "w")) == NULL)
277 8443bff7 2021-01-25 op fatal("fopen(%s): %s", keypath, strerror(errno));
278 8443bff7 2021-01-25 op if (!PEM_write_PrivateKey(f, pkey, NULL, NULL, 0, NULL, NULL))
279 8443bff7 2021-01-25 op fatal("couldn't write private key");
282 8443bff7 2021-01-25 op if ((f = fopen(certpath, "w")) == NULL)
283 8443bff7 2021-01-25 op fatal("fopen(%s): %s", certpath, strerror(errno));
284 8443bff7 2021-01-25 op if (!PEM_write_X509(f, x509))
285 8443bff7 2021-01-25 op fatal("couldn't write cert");
288 8443bff7 2021-01-25 op X509_free(x509);
289 8443bff7 2021-01-25 op RSA_free(rsa);
292 8443bff7 2021-01-25 op /* XXX: create recursively */
294 8443bff7 2021-01-25 op mkdirs(const char *path)
296 8443bff7 2021-01-25 op if (mkdir(path, 0755) == -1 && errno != EEXIST)
297 8443bff7 2021-01-25 op fatal("can't mkdir %s: %s", path, strerror(errno));
300 8443bff7 2021-01-25 op /* $XDG_DATA_HOME/gmid */
302 8443bff7 2021-01-25 op data_dir(void)
304 8443bff7 2021-01-25 op const char *home, *xdg;
305 8443bff7 2021-01-25 op char dir[PATH_MAX];
308 8443bff7 2021-01-25 op if ((xdg = getenv("XDG_DATA_HOME")) == NULL) {
309 8443bff7 2021-01-25 op if ((home = getenv("HOME")) == NULL)
310 8443bff7 2021-01-25 op errx(1, "XDG_DATA_HOME and HOME both empty");
311 8443bff7 2021-01-25 op if (asprintf(&t, "%s/.local/share/gmid", home) == -1)
312 8443bff7 2021-01-25 op err(1, "asprintf");
317 8443bff7 2021-01-25 op if (asprintf(&t, "%s/gmid", xdg) == -1)
318 8443bff7 2021-01-25 op err(1, "asprintf");
324 8443bff7 2021-01-25 op load_local_cert(const char *hostname, const char *dir)
326 8443bff7 2021-01-25 op char *cert, *key;
328 8443bff7 2021-01-25 op if (asprintf(&cert, "%s/%s.cert.pem", dir, hostname) == -1)
329 8443bff7 2021-01-25 op errx(1, "asprintf");
330 8443bff7 2021-01-25 op if (asprintf(&key, "%s/%s.key.pem", dir, hostname) == -1)
331 8443bff7 2021-01-25 op errx(1, "asprintf");
333 8443bff7 2021-01-25 op if (access(cert, R_OK) == -1 || access(key, R_OK) == -1)
334 8443bff7 2021-01-25 op gen_certificate(hostname, cert, key);
336 8443bff7 2021-01-25 op hosts[0].cert = cert;
337 8443bff7 2021-01-25 op hosts[0].key = key;
338 8443bff7 2021-01-25 op hosts[0].domain = hostname;
342 d3a08f4d 2021-01-17 op yyerror(const char *msg)
344 d3a08f4d 2021-01-17 op goterror = 1;
345 d3a08f4d 2021-01-17 op fprintf(stderr, "%d: %s\n", yylineno, msg);
349 d3a08f4d 2021-01-17 op parse_portno(const char *p)
351 ea28a449 2021-01-21 op const char *errstr;
354 a5a09e44 2021-01-21 op n = strtonum(p, 0, UINT16_MAX, &errstr);
355 a5a09e44 2021-01-21 op if (errstr != NULL)
356 a5a09e44 2021-01-21 op errx(1, "port number is %s: %s", errstr, p);
361 d3a08f4d 2021-01-17 op parse_conf(const char *path)
363 d3a08f4d 2021-01-17 op if ((yyin = fopen(path, "r")) == NULL)
364 132cae8c 2021-01-18 op fatal("cannot open config %s", path);
366 d3a08f4d 2021-01-17 op fclose(yyin);
368 d3a08f4d 2021-01-17 op if (goterror)
373 ae08ec7d 2021-01-25 op load_vhosts(void)
375 15902770 2021-01-15 op struct vhost *h;
377 15902770 2021-01-15 op for (h = hosts; h->domain != NULL; ++h) {
378 d3a08f4d 2021-01-17 op if ((h->dirfd = open(h->dir, O_RDONLY | O_DIRECTORY)) == -1)
379 132cae8c 2021-01-18 op fatal("open %s for domain %s", h->dir, h->domain);
384 9468027b 2020-10-15 op make_socket(int port, int family)
387 9468027b 2020-10-15 op struct sockaddr_in addr4;
388 9468027b 2020-10-15 op struct sockaddr_in6 addr6;
389 9468027b 2020-10-15 op struct sockaddr *addr;
390 9468027b 2020-10-15 op socklen_t len;
392 9468027b 2020-10-15 op switch (family) {
393 9468027b 2020-10-15 op case AF_INET:
394 9468027b 2020-10-15 op bzero(&addr4, sizeof(addr4));
395 9468027b 2020-10-15 op addr4.sin_family = family;
396 9468027b 2020-10-15 op addr4.sin_port = htons(port);
397 9468027b 2020-10-15 op addr4.sin_addr.s_addr = INADDR_ANY;
398 9468027b 2020-10-15 op addr = (struct sockaddr*)&addr4;
399 9468027b 2020-10-15 op len = sizeof(addr4);
402 9468027b 2020-10-15 op case AF_INET6:
403 9468027b 2020-10-15 op bzero(&addr6, sizeof(addr6));
404 9468027b 2020-10-15 op addr6.sin6_family = AF_INET6;
405 9468027b 2020-10-15 op addr6.sin6_port = htons(port);
406 9468027b 2020-10-15 op addr6.sin6_addr = in6addr_any;
407 9468027b 2020-10-15 op addr = (struct sockaddr*)&addr6;
408 9468027b 2020-10-15 op len = sizeof(addr6);
412 9468027b 2020-10-15 op /* unreachable */
416 9468027b 2020-10-15 op if ((sock = socket(family, SOCK_STREAM, 0)) == -1)
417 80bbcad5 2021-01-10 op fatal("socket: %s", strerror(errno));
420 3e4749f7 2020-10-02 op if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &v, sizeof(v)) == -1)
421 80bbcad5 2021-01-10 op fatal("setsockopt(SO_REUSEADDR): %s", strerror(errno));
424 3e4749f7 2020-10-02 op if (setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, &v, sizeof(v)) == -1)
425 80bbcad5 2021-01-10 op fatal("setsockopt(SO_REUSEPORT): %s", strerror(errno));
427 592fd624 2020-10-07 op mark_nonblock(sock);
429 9468027b 2020-10-15 op if (bind(sock, addr, len) == -1)
430 80bbcad5 2021-01-10 op fatal("bind: %s", strerror(errno));
432 3e4749f7 2020-10-02 op if (listen(sock, 16) == -1)
433 80bbcad5 2021-01-10 op fatal("listen: %s", strerror(errno));
439 ae08ec7d 2021-01-25 op setup_tls(void)
441 881a9dd9 2021-01-16 op struct tls_config *tlsconf;
442 ae08ec7d 2021-01-25 op struct vhost *h;
444 881a9dd9 2021-01-16 op if ((tlsconf = tls_config_new()) == NULL)
445 132cae8c 2021-01-18 op fatal("tls_config_new");
447 881a9dd9 2021-01-16 op /* optionally accept client certs, but don't try to verify them */
448 881a9dd9 2021-01-16 op tls_config_verify_client_optional(tlsconf);
449 881a9dd9 2021-01-16 op tls_config_insecure_noverifycert(tlsconf);
451 881a9dd9 2021-01-16 op if (tls_config_set_protocols(tlsconf, conf.protos) == -1)
452 132cae8c 2021-01-18 op fatal("tls_config_set_protocols");
454 881a9dd9 2021-01-16 op if ((ctx = tls_server()) == NULL)
455 132cae8c 2021-01-18 op fatal("tls_server failure");
457 ae08ec7d 2021-01-25 op /* we need to set something, then we can add how many key we want */
458 ae08ec7d 2021-01-25 op if (tls_config_set_keypair_file(tlsconf, hosts->cert, hosts->key))
459 ae08ec7d 2021-01-25 op fatal("tls_config_set_keypair_file failed");
461 8443bff7 2021-01-25 op for (h = &hosts[1]; h->domain != NULL; ++h) {
462 ae08ec7d 2021-01-25 op if (tls_config_add_keypair_file(tlsconf, h->cert, h->key) == -1)
463 ae08ec7d 2021-01-25 op fatal("failed to load the keypair (%s, %s)",
464 ae08ec7d 2021-01-25 op h->cert, h->key);
467 881a9dd9 2021-01-16 op if (tls_configure(ctx, tlsconf) == -1)
468 132cae8c 2021-01-18 op fatal("tls_configure: %s", tls_error(ctx));
472 ae08ec7d 2021-01-25 op listener_main(void)
474 ae08ec7d 2021-01-25 op int sock4, sock6;
476 ae08ec7d 2021-01-25 op load_default_mime(&conf.mime);
478 881a9dd9 2021-01-16 op if (!conf.foreground && daemon(0, 1) == -1)
481 881a9dd9 2021-01-16 op sock4 = make_socket(conf.port, AF_INET);
483 881a9dd9 2021-01-16 op if (conf.ipv6)
484 881a9dd9 2021-01-16 op sock6 = make_socket(conf.port, AF_INET6);
486 ae08ec7d 2021-01-25 op load_vhosts();
489 881a9dd9 2021-01-16 op loop(ctx, sock4, sock6);
495 8d6ae384 2021-01-24 op init_config(void)
499 15902770 2021-01-15 op bzero(hosts, sizeof(hosts));
500 15902770 2021-01-15 op for (i = 0; i < HOSTSLEN; ++i)
501 15902770 2021-01-15 op hosts[i].dirfd = -1;
503 8443bff7 2021-01-25 op conf.foreground = 0;
504 15902770 2021-01-15 op conf.port = 1965;
505 15902770 2021-01-15 op conf.ipv6 = 0;
506 5bc3c98e 2021-01-15 op conf.protos = TLS_PROTOCOL_TLSv1_2 | TLS_PROTOCOL_TLSv1_3;
508 b2a6b613 2021-01-21 op init_mime(&conf.mime);
510 ae08ec7d 2021-01-25 op conf.chroot = NULL;
511 ae08ec7d 2021-01-25 op conf.user = NULL;
515 ae08ec7d 2021-01-25 op drop_priv(void)
517 ae08ec7d 2021-01-25 op struct passwd *pw = NULL;
519 ae08ec7d 2021-01-25 op if (conf.chroot != NULL && conf.user == NULL)
520 ae08ec7d 2021-01-25 op fatal("can't chroot without an user to switch to after.");
522 ae08ec7d 2021-01-25 op if (conf.user != NULL) {
523 ae08ec7d 2021-01-25 op if ((pw = getpwnam(conf.user)) == NULL)
524 ae08ec7d 2021-01-25 op fatal("can't find user %s", conf.user);
527 ae08ec7d 2021-01-25 op if (conf.chroot != NULL) {
528 ae08ec7d 2021-01-25 op if (chroot(conf.chroot) != 0 || chdir("/") != 0)
529 ae08ec7d 2021-01-25 op fatal("%s: %s", conf.chroot, strerror(errno));
532 ae08ec7d 2021-01-25 op if (pw != NULL) {
533 ae08ec7d 2021-01-25 op if (setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid) == -1)
534 ae08ec7d 2021-01-25 op fatal("setresuid(%d): %s", pw->pw_uid,
535 ae08ec7d 2021-01-25 op strerror(errno));
538 ae08ec7d 2021-01-25 op if (getuid() == 0)
539 ae08ec7d 2021-01-25 op LOGW(NULL, "%s",
540 ae08ec7d 2021-01-25 op "not a good idea to run a network daemon as root");
544 2030e314 2021-01-25 op usage(const char *me)
546 2030e314 2021-01-25 op fprintf(stderr,
547 8443bff7 2021-01-25 op "USAGE: %s [-n] [-c config] | [-6h] [-d certs-dir] [-H host]"
548 8443bff7 2021-01-25 op " [-p port] [-x cgi] [dir]",
553 8d6ae384 2021-01-24 op main(int argc, char **argv)
555 8d6ae384 2021-01-24 op int ch, p[2];
556 8443bff7 2021-01-25 op const char *config_path = NULL, *certs_dir = NULL, *hostname = NULL;
557 8443bff7 2021-01-25 op int conftest = 0, configless = 0;
559 501e489c 2021-01-24 op init_config();
561 8443bff7 2021-01-25 op while ((ch = getopt(argc, argv, "6c:d:H:hnp:x:")) != -1) {
562 3e4749f7 2020-10-02 op switch (ch) {
564 15902770 2021-01-15 op conf.ipv6 = 1;
565 8443bff7 2021-01-25 op configless = 1;
569 15902770 2021-01-15 op config_path = optarg;
573 8443bff7 2021-01-25 op certs_dir = optarg;
574 8443bff7 2021-01-25 op configless = 1;
578 8443bff7 2021-01-25 op hostname = optarg;
579 8443bff7 2021-01-25 op configless = 1;
583 3e4749f7 2020-10-02 op usage(*argv);
587 15902770 2021-01-15 op conftest = 1;
591 15902770 2021-01-15 op conf.port = parse_portno(optarg);
592 8443bff7 2021-01-25 op configless = 1;
596 15902770 2021-01-15 op /* drop the starting / (if any) */
597 15902770 2021-01-15 op if (*optarg == '/')
599 15902770 2021-01-15 op hosts[0].cgi = optarg;
600 8443bff7 2021-01-25 op configless = 1;
604 3e4749f7 2020-10-02 op usage(*argv);
608 8443bff7 2021-01-25 op argc -= optind;
609 8443bff7 2021-01-25 op argv += optind;
611 15902770 2021-01-15 op if (config_path != NULL) {
612 8443bff7 2021-01-25 op if (argc > 0 || configless)
613 8443bff7 2021-01-25 op fatal("can't specify options is config mode.");
615 15902770 2021-01-15 op parse_conf(config_path);
617 8443bff7 2021-01-25 op conf.foreground = 1;
619 8443bff7 2021-01-25 op if (hostname == NULL)
620 8443bff7 2021-01-25 op hostname = "localhost";
621 8443bff7 2021-01-25 op if (certs_dir == NULL)
622 8443bff7 2021-01-25 op certs_dir = data_dir();
623 8443bff7 2021-01-25 op load_local_cert(hostname, certs_dir);
625 390a6118 2021-01-27 op hosts[0].locations[0].auto_index = 1;
626 390a6118 2021-01-27 op hosts[0].locations[0].match = "*";
628 8443bff7 2021-01-25 op switch (argc) {
630 8443bff7 2021-01-25 op hosts[0].dir = ".";
633 8443bff7 2021-01-25 op hosts[0].dir = argv[0];
636 8443bff7 2021-01-25 op usage(getprogname());
640 8443bff7 2021-01-25 op LOGN(NULL, "serving %s on port %d", hosts[0].dir, conf.port);
643 132cae8c 2021-01-18 op if (conftest) {
644 132cae8c 2021-01-18 op puts("config OK");
648 ae08ec7d 2021-01-25 op /* setup tls before dropping privileges: we don't want user
649 ae08ec7d 2021-01-25 op * to put private certs inside the chroot. */
653 4a28dd01 2020-12-28 op signal(SIGPIPE, SIG_IGN);
654 4a28dd01 2020-12-28 op signal(SIGCHLD, SIG_IGN);
656 4a28dd01 2020-12-28 op #ifdef SIGINFO
657 4a28dd01 2020-12-28 op signal(SIGINFO, sig_handler);
659 4a28dd01 2020-12-28 op signal(SIGUSR2, sig_handler);
661 0170ba02 2021-01-17 op if (!conf.foreground) {
662 4a28dd01 2020-12-28 op signal(SIGHUP, SIG_IGN);
663 0170ba02 2021-01-17 op if (daemon(1, 1) == -1)
664 132cae8c 2021-01-18 op fatal("daemon: %s", strerror(errno));
667 881a9dd9 2021-01-16 op if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, p) == -1)
668 881a9dd9 2021-01-16 op fatal("socketpair: %s", strerror(errno));
670 881a9dd9 2021-01-16 op switch (fork()) {
672 881a9dd9 2021-01-16 op fatal("fork: %s", strerror(errno));
674 881a9dd9 2021-01-16 op case 0: /* child */
677 881a9dd9 2021-01-16 op listener_main();
680 881a9dd9 2021-01-16 op default: /* parent */
682 881a9dd9 2021-01-16 op return executor_main(p[0]);