… | |
… | |
5 | * All portions of code are copyright by their respective author/s. |
5 | * All portions of code are copyright by their respective author/s. |
6 | * Copyright (c) 2003-2007 Marc Lehmann <schmorp@schmorp.de> |
6 | * Copyright (c) 2003-2007 Marc Lehmann <schmorp@schmorp.de> |
7 | * |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by |
9 | * it under the terms of the GNU General Public License as published by |
10 | * the Free Software Foundation; either version 2 of the License, or |
10 | * the Free Software Foundation; either version 3 of the License, or |
11 | * (at your option) any later version. |
11 | * (at your option) any later version. |
12 | * |
12 | * |
13 | * This program is distributed in the hope that it will be useful, |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
… | |
… | |
41 | # include <sys/mman.h> |
41 | # include <sys/mman.h> |
42 | #endif |
42 | #endif |
43 | |
43 | |
44 | #include <errno.h> |
44 | #include <errno.h> |
45 | |
45 | |
|
|
46 | #include <libptytty.h> |
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|
47 | |
46 | #include "rxvt.h" |
48 | #include "rxvt.h" |
47 | #include "rxvtdaemon.h" |
49 | #include "rxvtdaemon.h" |
48 | #include "libptytty.h" |
|
|
49 | |
50 | |
50 | struct server : rxvt_connection { |
51 | struct server : rxvt_connection |
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|
52 | { |
51 | log_callback log_cb; |
53 | log_callback log_cb; |
52 | getfd_callback getfd_cb; |
54 | getfd_callback getfd_cb; |
53 | |
55 | |
54 | void read_cb (ev::io &w, int revents); ev::io read_ev; |
56 | void read_cb (ev::io &w, int revents); ev::io read_ev; |
55 | void log_msg (const char *msg); |
57 | void log_msg (const char *msg); |
… | |
… | |
68 | } |
70 | } |
69 | |
71 | |
70 | void err (const char *format = 0, ...); |
72 | void err (const char *format = 0, ...); |
71 | }; |
73 | }; |
72 | |
74 | |
73 | struct unix_listener { |
75 | struct unix_listener |
|
|
76 | { |
74 | int fd; |
77 | int fd; |
75 | |
78 | |
76 | void accept_cb (ev::io &w, int revents); ev::io accept_ev; |
79 | void accept_cb (ev::io &w, int revents); ev::io accept_ev; |
77 | |
80 | |
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|
81 | unix_listener (int fd); |
78 | unix_listener (const char *sockname); |
82 | static int open (const char *sockname); |
79 | }; |
83 | }; |
80 | |
84 | |
81 | unix_listener::unix_listener (const char *sockname) |
85 | unix_listener::unix_listener (int fd) : fd (fd) |
82 | { |
86 | { |
83 | accept_ev.set<unix_listener, &unix_listener::accept_cb> (this); |
87 | accept_ev.set<unix_listener, &unix_listener::accept_cb> (this); |
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88 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
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89 | fcntl (fd, F_SETFL, O_NONBLOCK); |
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90 | accept_ev.start (fd, ev::READ); |
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91 | } |
84 | |
92 | |
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93 | int unix_listener::open (const char *sockname) |
|
|
94 | { |
85 | sockaddr_un sa; |
95 | sockaddr_un sa; |
86 | |
96 | |
87 | if (strlen (sockname) >= sizeof(sa.sun_path)) |
97 | if (strlen (sockname) >= sizeof(sa.sun_path)) |
88 | { |
98 | { |
89 | fputs ("socket name too long, aborting.\n", stderr); |
99 | fputs ("socket name too long, aborting.\n", stderr); |
90 | exit (EXIT_FAILURE); |
100 | exit (EXIT_FAILURE); |
91 | } |
101 | } |
92 | |
102 | |
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|
103 | int fd; |
93 | if ((fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) |
104 | if ((fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) |
94 | { |
105 | { |
95 | perror ("unable to create listening socket"); |
106 | perror ("unable to create listening socket"); |
96 | exit (EXIT_FAILURE); |
107 | exit (EXIT_FAILURE); |
97 | } |
108 | } |
98 | |
109 | |
99 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
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100 | fcntl (fd, F_SETFL, O_NONBLOCK); |
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101 | |
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102 | sa.sun_family = AF_UNIX; |
110 | sa.sun_family = AF_UNIX; |
103 | strcpy (sa.sun_path, sockname); |
111 | strcpy (sa.sun_path, sockname); |
104 | |
112 | |
105 | unlink (sockname); |
113 | unlink (sockname); |
106 | |
114 | |
… | |
… | |
118 | { |
126 | { |
119 | perror ("unable to listen on socket"); |
127 | perror ("unable to listen on socket"); |
120 | exit (EXIT_FAILURE); |
128 | exit (EXIT_FAILURE); |
121 | } |
129 | } |
122 | |
130 | |
123 | accept_ev.start (fd, ev::READ); |
131 | return fd; |
124 | } |
132 | } |
125 | |
133 | |
126 | void unix_listener::accept_cb (ev::io &w, int revents) |
134 | void unix_listener::accept_cb (ev::io &w, int revents) |
127 | { |
135 | { |
128 | int fd2 = accept (fd, 0, 0); |
136 | int fd2 = accept (fd, 0, 0); |
… | |
… | |
198 | |
206 | |
199 | try |
207 | try |
200 | { |
208 | { |
201 | term->init (argv, envv); |
209 | term->init (argv, envv); |
202 | } |
210 | } |
203 | catch (const class rxvt_failure_exception &e) |
211 | catch (const std::exception &e) |
204 | { |
212 | { |
|
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213 | log_msg (e.what()); |
205 | success = false; |
214 | success = false; |
206 | } |
215 | } |
207 | |
216 | |
208 | term->log_hook = 0; |
217 | term->log_hook = 0; |
209 | |
218 | |
… | |
… | |
213 | term->destroy (); |
222 | term->destroy (); |
214 | |
223 | |
215 | send ("END"); send (success ? 1 : 0); |
224 | send ("END"); send (success ? 1 : 0); |
216 | } |
225 | } |
217 | } |
226 | } |
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227 | else if (!strcmp (tok, "QUIT")) |
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228 | _exit (0); |
218 | else |
229 | else |
219 | return err ("protocol error: request '%s' unsupported.\n", (char *)tok); |
230 | return err ("protocol error: request '%s' unsupported.\n", (char *)tok); |
220 | } |
231 | } |
221 | else |
232 | else |
222 | return err (); |
233 | return err (); |
223 | } |
234 | } |
224 | |
235 | |
|
|
236 | #ifdef ENABLE_FRILLS |
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237 | enum { |
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238 | SD_LISTEN_FDS_START = 3, |
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239 | }; |
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240 | |
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241 | // https://www.freedesktop.org/software/systemd/man/sd_listen_fds.html |
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242 | // https://github.com/systemd/systemd/blob/main/src/libsystemd/sd-daemon/sd-daemon.c |
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243 | static int get_listen_fds () |
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244 | { |
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245 | const char *listen_pid = getenv ("LISTEN_PID"); |
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246 | if (!listen_pid) |
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247 | return 0; |
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248 | |
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249 | char *end; |
|
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250 | errno = 0; |
|
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251 | long pid = strtol (listen_pid, &end, 10); |
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252 | if (errno || end == listen_pid || *end) |
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253 | return -1; |
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254 | |
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255 | if (getpid () != pid) |
|
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256 | return 0; |
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257 | |
|
|
258 | const char *listen_fds = getenv ("LISTEN_FDS"); |
|
|
259 | if (!listen_fds) |
|
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260 | return 0; |
|
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261 | |
|
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262 | errno = 0; |
|
|
263 | long n = strtol (listen_fds, &end, 10); |
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264 | if (errno || end == listen_fds || *end) |
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265 | return -1; |
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266 | |
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267 | if (n <= 0 || n > INT_MAX - SD_LISTEN_FDS_START) |
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268 | return -1; |
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269 | |
|
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270 | unsetenv ("LISTEN_PID"); |
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271 | unsetenv ("LISTEN_FDS"); |
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272 | unsetenv ("LISTEN_FDNAMES"); |
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273 | |
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274 | return n; |
|
|
275 | } |
|
|
276 | #endif |
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277 | |
225 | int |
278 | int |
226 | main (int argc, char *argv[]) |
279 | main (int argc, char *argv[]) |
227 | { |
280 | { |
|
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281 | try |
|
|
282 | { |
228 | ptytty::init (); |
283 | ptytty::init (); |
|
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284 | } |
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285 | catch (const std::exception &e) |
|
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286 | { |
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287 | fputs (e.what (), stderr); |
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288 | return EXIT_FAILURE; |
|
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289 | } |
229 | |
290 | |
230 | static char opt_fork, opt_opendisplay, opt_quiet; |
291 | static char opt_fork, opt_opendisplay, opt_quiet; |
231 | #if ENABLE_PERL |
292 | #if ENABLE_PERL |
232 | static char *opt_eval; |
293 | static char *opt_eval; |
233 | #endif |
294 | #endif |
… | |
… | |
271 | // optionally open display and never release it. |
332 | // optionally open display and never release it. |
272 | if (opt_opendisplay) |
333 | if (opt_opendisplay) |
273 | if (const char *dpy = getenv ("DISPLAY")) |
334 | if (const char *dpy = getenv ("DISPLAY")) |
274 | displays.get (dpy ? dpy : ":0"); // move string logic into rxvt_display maybe? |
335 | displays.get (dpy ? dpy : ":0"); // move string logic into rxvt_display maybe? |
275 | |
336 | |
|
|
337 | int fd; |
|
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338 | #ifdef ENABLE_FRILLS |
|
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339 | int n = get_listen_fds (); |
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340 | if (n > 1) |
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341 | { |
|
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342 | fputs ("received multiple file descriptors, aborting.\n", stderr); |
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343 | exit (EXIT_FAILURE); |
|
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344 | } |
|
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345 | else if (n == 1) |
|
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346 | { |
|
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347 | fd = SD_LISTEN_FDS_START; |
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348 | if (!opt_quiet) |
|
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349 | { |
|
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350 | printf ("rxvt-unicode daemon listening on fd.\n"); |
|
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351 | fflush (stdout); |
|
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352 | } |
|
|
353 | } |
|
|
354 | else |
|
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355 | #endif |
|
|
356 | { |
276 | char *sockname = rxvt_connection::unix_sockname (); |
357 | char *sockname = rxvt_connection::unix_sockname (); |
|
|
358 | fd = unix_listener::open (sockname); |
|
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359 | if (!opt_quiet) |
|
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360 | { |
|
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361 | printf ("rxvt-unicode daemon listening on %s.\n", sockname); |
|
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362 | fflush (stdout); |
|
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363 | } |
|
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364 | free (sockname); |
|
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365 | } |
|
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366 | |
277 | unix_listener l (sockname); |
367 | unix_listener l (fd); |
278 | |
368 | |
279 | chdir ("/"); |
369 | chdir ("/"); |
280 | |
|
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281 | if (!opt_quiet) |
|
|
282 | { |
|
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283 | printf ("rxvt-unicode daemon listening on %s.\n", sockname); |
|
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284 | fflush (stdout); |
|
|
285 | } |
|
|
286 | |
|
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287 | free (sockname); |
|
|
288 | |
370 | |
289 | pid_t pid = 0; |
371 | pid_t pid = 0; |
290 | if (opt_fork) |
372 | if (opt_fork) |
291 | { |
373 | { |
292 | pid = fork (); |
374 | pid = fork (); |