1 | /*----------------------------------------------------------------------* |
1 | /*----------------------------------------------------------------------* |
2 | * File: rxvtd.C |
2 | * File: rxvtd.C |
3 | *----------------------------------------------------------------------* |
3 | *----------------------------------------------------------------------* |
4 | * |
4 | * |
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) 2003-2006 Marc Lehmann <pcg@goof.com> |
6 | * Copyright (c) 2003-2007 Marc Lehmann <pcg@goof.com> |
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 2 of the License, or |
11 | * (at your option) any later version. |
11 | * (at your option) any later version. |
… | |
… | |
31 | #include <sys/types.h> |
31 | #include <sys/types.h> |
32 | #include <sys/stat.h> |
32 | #include <sys/stat.h> |
33 | #include <sys/socket.h> |
33 | #include <sys/socket.h> |
34 | #include <sys/un.h> |
34 | #include <sys/un.h> |
35 | |
35 | |
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36 | #if defined(ENABLE_FRILLS) && defined(_POSIX_MEMLOCK) && _POSIX_MEMLOCK > 0 |
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37 | # define ENABLE_MLOCK 1 |
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38 | #endif |
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39 | |
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40 | #if ENABLE_MLOCK |
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41 | # include <sys/mman.h> |
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42 | #endif |
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43 | |
36 | #include <cerrno> |
44 | #include <cerrno> |
37 | |
45 | |
38 | #include "rxvt.h" |
46 | #include "rxvt.h" |
39 | #include "rxvtdaemon.h" |
47 | #include "rxvtdaemon.h" |
40 | #include "libptytty.h" |
48 | #include "libptytty.h" |
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46 | void read_cb (ev::io &w, int revents); ev::io read_ev; |
54 | void read_cb (ev::io &w, int revents); ev::io read_ev; |
47 | void log_msg (const char *msg); |
55 | void log_msg (const char *msg); |
48 | int getfd (int remote_fd); |
56 | int getfd (int remote_fd); |
49 | |
57 | |
50 | server (int fd) |
58 | server (int fd) |
51 | : read_ev (this, &server::read_cb), |
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52 | log_cb (this, &server::log_msg), |
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53 | getfd_cb (this, &server::getfd) |
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54 | { |
59 | { |
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60 | read_ev.set <server, &server::read_cb> (this); |
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61 | log_cb.set <server, &server::log_msg> (this); |
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62 | getfd_cb.set<server, &server::getfd> (this); |
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63 | |
55 | this->fd = fd; |
64 | this->fd = fd; |
56 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
65 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
57 | fcntl (fd, F_SETFL, 0); |
66 | fcntl (fd, F_SETFL, 0); |
58 | read_ev.start (fd, ev::READ); |
67 | read_ev.start (fd, ev::READ); |
59 | } |
68 | } |
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68 | |
77 | |
69 | unix_listener (const char *sockname); |
78 | unix_listener (const char *sockname); |
70 | }; |
79 | }; |
71 | |
80 | |
72 | unix_listener::unix_listener (const char *sockname) |
81 | unix_listener::unix_listener (const char *sockname) |
73 | : accept_ev (this, &unix_listener::accept_cb) |
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74 | { |
82 | { |
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83 | accept_ev.set<unix_listener, &unix_listener::accept_cb> (this); |
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84 | |
75 | sockaddr_un sa; |
85 | sockaddr_un sa; |
76 | |
86 | |
77 | if (strlen (sockname) >= sizeof(sa.sun_path)) |
87 | if (strlen (sockname) >= sizeof(sa.sun_path)) |
78 | { |
88 | { |
79 | fputs ("socket name too long, aborting.\n", stderr); |
89 | fputs ("socket name too long, aborting.\n", stderr); |
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170 | |
180 | |
171 | if (!strcmp (tok, "END")) |
181 | if (!strcmp (tok, "END")) |
172 | break; |
182 | break; |
173 | else if (!strcmp (tok, "ENV") && recv (tok)) |
183 | else if (!strcmp (tok, "ENV") && recv (tok)) |
174 | envv->push_back (strdup (tok)); |
184 | envv->push_back (strdup (tok)); |
175 | else if (!strcmp (tok, "CWD") && recv (tok)) |
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176 | { |
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177 | if (chdir (tok)) |
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178 | { |
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179 | delete envv; |
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180 | delete argv; |
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181 | return err ("unable to change to working directory to '%s', aborting: %s.\n", |
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182 | (char *)tok, strerror (errno)); |
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183 | } |
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184 | } |
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185 | else if (!strcmp (tok, "ARG") && recv (tok)) |
185 | else if (!strcmp (tok, "ARG") && recv (tok)) |
186 | argv->push_back (strdup (tok)); |
186 | argv->push_back (strdup (tok)); |
187 | else |
187 | else |
188 | return err ("protocol error: unexpected NEW token.\n"); |
188 | return err ("protocol error: unexpected NEW token.\n"); |
189 | } |
189 | } |
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194 | rxvt_term *term = new rxvt_term; |
194 | rxvt_term *term = new rxvt_term; |
195 | |
195 | |
196 | term->log_hook = &log_cb; |
196 | term->log_hook = &log_cb; |
197 | term->getfd_hook = &getfd_cb; |
197 | term->getfd_hook = &getfd_cb; |
198 | |
198 | |
199 | bool success; |
199 | bool success = true; |
200 | |
200 | |
201 | try |
201 | try |
202 | { |
202 | { |
203 | success = term->init (argv, envv); |
203 | term->init (argv, envv); |
204 | } |
204 | } |
205 | catch (const class rxvt_failure_exception &e) |
205 | catch (const class rxvt_failure_exception &e) |
206 | { |
206 | { |
207 | success = false; |
207 | success = false; |
208 | } |
208 | } |
209 | |
209 | |
210 | term->log_hook = 0; |
210 | term->log_hook = 0; |
211 | |
211 | |
212 | chdir ("/"); |
212 | chdir ("/"); // init might change to different working directory |
213 | |
213 | |
214 | if (!success) |
214 | if (!success) |
215 | term->destroy (); |
215 | term->destroy (); |
216 | |
216 | |
217 | send ("END"); send (success ? 1 : 0); |
217 | send ("END"); send (success ? 1 : 0); |
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223 | else |
223 | else |
224 | return err (); |
224 | return err (); |
225 | } |
225 | } |
226 | |
226 | |
227 | int opt_fork, opt_opendisplay, opt_quiet; |
227 | int opt_fork, opt_opendisplay, opt_quiet; |
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228 | #if ENABLE_MLOCK |
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229 | int opt_lock; |
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230 | #endif |
228 | |
231 | |
229 | int |
232 | int |
230 | main (int argc, const char *const *argv) |
233 | main (int argc, const char *const *argv) |
231 | { |
234 | { |
232 | rxvt_init (); |
235 | rxvt_init (); |
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237 | opt_fork = 1; |
240 | opt_fork = 1; |
238 | else if (!strcmp (argv [i], "-o") || !strcmp (argv [i], "--opendisplay")) |
241 | else if (!strcmp (argv [i], "-o") || !strcmp (argv [i], "--opendisplay")) |
239 | opt_opendisplay = 1; |
242 | opt_opendisplay = 1; |
240 | else if (!strcmp (argv [i], "-q") || !strcmp (argv [i], "--quiet")) |
243 | else if (!strcmp (argv [i], "-q") || !strcmp (argv [i], "--quiet")) |
241 | opt_quiet = 1; |
244 | opt_quiet = 1; |
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245 | #if ENABLE_MLOCK |
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246 | else if (!strcmp (argv [i], "-m") || !strcmp (argv [i], "--mlock")) |
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247 | opt_lock = 1; |
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248 | #endif |
242 | else |
249 | else |
243 | { |
250 | { |
244 | rxvt_log ("%s: unknown option '%s', aborting.\n", argv [0], argv [i]); |
251 | rxvt_log ("%s: unknown option '%s', aborting.\n", argv [0], argv [i]); |
245 | return EXIT_FAILURE; |
252 | return EXIT_FAILURE; |
246 | } |
253 | } |
247 | } |
254 | } |
248 | |
255 | |
249 | chdir ("/"); |
256 | // optionally open display and never release it. |
250 | |
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251 | if (opt_opendisplay) |
257 | if (opt_opendisplay) |
252 | displays.get (getenv ("DISPLAY")); // open display and never release it |
258 | if (const char *dpy = getenv ("DISPLAY")) |
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259 | displays.get (dpy ? dpy : ":0"); // move string logic into rxvt_display maybe? |
253 | |
260 | |
254 | char *sockname = rxvt_connection::unix_sockname (); |
261 | char *sockname = rxvt_connection::unix_sockname (); |
255 | unix_listener l (sockname); |
262 | unix_listener l (sockname); |
256 | |
263 | |
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264 | chdir ("/"); |
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265 | |
257 | if (!opt_quiet) |
266 | if (!opt_quiet) |
258 | { |
267 | { |
259 | printf ("rxvt-unicode daemon listening on %s.\n", sockname); |
268 | printf ("rxvt-unicode daemon listening on %s.\n", sockname); |
260 | fflush (stdout); |
269 | fflush (stdout); |
261 | } |
270 | } |
262 | |
271 | |
263 | free (sockname); |
272 | free (sockname); |
264 | |
273 | |
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274 | pid_t pid = 0; |
265 | if (opt_fork) |
275 | if (opt_fork) |
266 | { |
276 | { |
267 | pid_t pid = fork (); |
277 | pid = fork (); |
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278 | } |
268 | |
279 | |
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280 | #if ENABLE_MLOCK |
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281 | // Optionally preform a mlockall so this process does not get swapped out. |
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282 | if (opt_lock && pid == 0) |
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283 | if (mlockall(MCL_CURRENT | MCL_FUTURE) == -1) |
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284 | perror("unable to lock into ram"); |
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285 | #endif |
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286 | |
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287 | if (opt_fork) |
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288 | { |
269 | if (pid < 0) |
289 | if (pid < 0) |
270 | { |
290 | { |
271 | rxvt_log ("unable to fork daemon, aborting.\n"); |
291 | rxvt_log ("unable to fork daemon, aborting.\n"); |
272 | return EXIT_FAILURE; |
292 | return EXIT_FAILURE; |
273 | } |
293 | } |