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1 | /*----------------------------------------------------------------------* |
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2 | * File: rxvtd.C |
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3 | *----------------------------------------------------------------------* |
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4 | * |
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5 | * All portions of code are copyright by their respective author/s. |
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6 | * Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com> |
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7 | * |
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8 | * This program is free software; you can redistribute it and/or modify |
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9 | * it under the terms of the GNU General Public License as published by |
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10 | * the Free Software Foundation; either version 2 of the License, or |
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11 | * (at your option) any later version. |
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12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program; if not, write to the Free Software |
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20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 | *----------------------------------------------------------------------*/ |
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22 | |
1 | #include "../config.h" |
23 | #include "../config.h" |
2 | #include "rxvt.h" |
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3 | #include "rxvtdaemon.h" |
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4 | #include "iom.h" |
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5 | |
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6 | #include <cstdio> |
24 | #include <cstdio> |
7 | #include <cstdlib> |
25 | #include <cstdlib> |
8 | #include <cstdarg> |
26 | #include <cstdarg> |
9 | #include <cstring> |
27 | #include <cstring> |
10 | |
28 | |
… | |
… | |
15 | #include <sys/socket.h> |
33 | #include <sys/socket.h> |
16 | #include <sys/un.h> |
34 | #include <sys/un.h> |
17 | |
35 | |
18 | #include <cerrno> |
36 | #include <cerrno> |
19 | |
37 | |
20 | extern char **environ; |
38 | #include "rxvt.h" |
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39 | #include "rxvtdaemon.h" |
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40 | #include "libptytty.h" |
21 | |
41 | |
22 | struct server : rxvt_connection { |
42 | struct server : rxvt_connection { |
23 | log_callback log_cb; |
43 | log_callback log_cb; |
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44 | getfd_callback getfd_cb; |
24 | |
45 | |
25 | void read_cb (io_watcher &w, short revents); io_watcher read_ev; |
46 | void read_cb (ev::io &w, int revents); ev::io read_ev; |
26 | void log_msg (const char *msg); |
47 | void log_msg (const char *msg); |
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48 | int getfd (int remote_fd); |
27 | |
49 | |
28 | server (int fd) |
50 | server (int fd) |
29 | : read_ev (this, &server::read_cb), |
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30 | log_cb (this, &server::log_msg) |
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31 | { |
51 | { |
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52 | read_ev.set <server, &server::read_cb> (this); |
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53 | log_cb.set <server, &server::log_msg> (this); |
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54 | getfd_cb.set<server, &server::getfd> (this); |
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55 | |
32 | this->fd = fd; |
56 | this->fd = fd; |
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57 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
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58 | fcntl (fd, F_SETFL, 0); |
33 | read_ev.start (fd, EVENT_READ); |
59 | read_ev.start (fd, ev::READ); |
34 | } |
60 | } |
35 | |
61 | |
36 | void err (const char *format = 0, ...); |
62 | void err (const char *format = 0, ...); |
37 | }; |
63 | }; |
38 | |
64 | |
39 | struct unix_listener { |
65 | struct unix_listener { |
40 | int fd; |
66 | int fd; |
41 | |
67 | |
42 | void accept_cb (io_watcher &w, short revents); io_watcher accept_ev; |
68 | void accept_cb (ev::io &w, int revents); ev::io accept_ev; |
43 | |
69 | |
44 | unix_listener (const char *sockname); |
70 | unix_listener (const char *sockname); |
45 | }; |
71 | }; |
46 | |
72 | |
47 | unix_listener::unix_listener (const char *sockname) |
73 | unix_listener::unix_listener (const char *sockname) |
48 | : accept_ev (this, &unix_listener::accept_cb) |
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49 | { |
74 | { |
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75 | accept_ev.set<unix_listener, &unix_listener::accept_cb> (this); |
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76 | |
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77 | sockaddr_un sa; |
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78 | |
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79 | if (strlen (sockname) >= sizeof(sa.sun_path)) |
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80 | { |
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81 | fputs ("socket name too long, aborting.\n", stderr); |
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82 | exit (EXIT_FAILURE); |
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83 | } |
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84 | |
50 | if ((fd = socket (PF_LOCAL, SOCK_STREAM, 0)) < 0) |
85 | if ((fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) |
51 | { |
86 | { |
52 | perror ("unable to create listening socket"); |
87 | perror ("unable to create listening socket"); |
53 | exit (EXIT_FAILURE); |
88 | exit (EXIT_FAILURE); |
54 | } |
89 | } |
55 | |
90 | |
56 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
91 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
57 | |
92 | fcntl (fd, F_SETFL, O_NONBLOCK); |
58 | sockaddr_un sa; |
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59 | |
93 | |
60 | sa.sun_family = AF_UNIX; |
94 | sa.sun_family = AF_UNIX; |
61 | strcpy (sa.sun_path, sockname); |
95 | strcpy (sa.sun_path, sockname); |
62 | |
96 | |
63 | unlink (rxvt_connection::unix_sockname ()); |
97 | unlink (rxvt_connection::unix_sockname ()); |
… | |
… | |
76 | { |
110 | { |
77 | perror ("unable to listen on socket"); |
111 | perror ("unable to listen on socket"); |
78 | exit (EXIT_FAILURE); |
112 | exit (EXIT_FAILURE); |
79 | } |
113 | } |
80 | |
114 | |
81 | accept_ev.start (fd, EVENT_READ); |
115 | accept_ev.start (fd, ev::READ); |
82 | } |
116 | } |
83 | |
117 | |
84 | void unix_listener::accept_cb (io_watcher &w, short revents) |
118 | void unix_listener::accept_cb (ev::io &w, int revents) |
85 | { |
119 | { |
86 | int fd2 = accept (fd, 0, 0); |
120 | int fd2 = accept (fd, 0, 0); |
87 | |
121 | |
88 | if (fd2 >= 0) |
122 | if (fd2 >= 0) |
89 | { |
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90 | fcntl (fd2, F_SETFD, FD_CLOEXEC); |
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91 | new server (fd2); |
123 | new server (fd2); |
92 | } |
124 | } |
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125 | |
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126 | int server::getfd (int remote_fd) |
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127 | { |
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128 | send ("GETFD"); |
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129 | send (remote_fd); |
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130 | return ptytty::recv_fd (fd); |
93 | } |
131 | } |
94 | |
132 | |
95 | void server::log_msg (const char *msg) |
133 | void server::log_msg (const char *msg) |
96 | { |
134 | { |
97 | send ("MSG"), send (msg); |
135 | send ("MSG"), send (msg); |
… | |
… | |
106 | va_list ap; |
144 | va_list ap; |
107 | va_start (ap, format); |
145 | va_start (ap, format); |
108 | vsnprintf (err, 1024, format, ap); |
146 | vsnprintf (err, 1024, format, ap); |
109 | va_end (ap); |
147 | va_end (ap); |
110 | |
148 | |
111 | send ("MSG"), send (err); |
149 | log_msg (err); |
112 | } |
150 | } |
113 | |
151 | |
114 | send ("END", 0); |
152 | send ("END"), send (0); |
115 | close (fd); |
153 | close (fd); |
116 | delete this; |
154 | delete this; |
117 | } |
155 | } |
118 | |
156 | |
119 | void server::read_cb (io_watcher &w, short revents) |
157 | void server::read_cb (ev::io &w, int revents) |
120 | { |
158 | { |
121 | auto_str tok; |
159 | auto_str tok; |
122 | |
160 | |
123 | if (recv (tok)) |
161 | if (recv (tok)) |
124 | { |
162 | { |
125 | if (!strcmp (tok, "NEW")) |
163 | if (!strcmp (tok, "NEW")) |
126 | { |
164 | { |
127 | stringvec *argv = new stringvec; |
165 | stringvec *argv = new stringvec; |
128 | stringvec *envv = new stringvec; |
166 | stringvec *envv = new stringvec; |
129 | |
167 | |
130 | for (;;) |
168 | for (;;) |
131 | { |
169 | { |
132 | if (!recv (tok)) |
170 | if (!recv (tok)) |
133 | return err (); |
171 | return err (); |
134 | |
172 | |
135 | if (!strcmp (tok, "END")) |
173 | if (!strcmp (tok, "END")) |
136 | break; |
174 | break; |
137 | else if (!strcmp (tok, "ENV") && recv (tok)) |
175 | else if (!strcmp (tok, "ENV") && recv (tok)) |
138 | envv->push_back (tok.get ()); |
176 | envv->push_back (strdup (tok)); |
139 | else if (!strcmp (tok, "CWD") && recv (tok)) |
177 | else if (!strcmp (tok, "CWD") && recv (tok)) |
140 | { |
178 | { |
141 | if (chdir (tok)) |
179 | if (chdir (tok)) |
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180 | { |
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181 | delete envv; |
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182 | delete argv; |
142 | err ("unable to change to working directory to '%s': %s", |
183 | return err ("unable to change to working directory to '%s', aborting: %s.\n", |
143 | (char *)tok, strerror (errno)); |
184 | (char *)tok, strerror (errno)); |
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185 | } |
144 | } |
186 | } |
145 | else if (!strcmp (tok, "ARG") && recv (tok)) |
187 | else if (!strcmp (tok, "ARG") && recv (tok)) |
146 | argv->push_back (tok.get ()); |
188 | argv->push_back (strdup (tok)); |
147 | else |
189 | else |
148 | return err ("protocol error: unexpected NEW token"); |
190 | return err ("protocol error: unexpected NEW token.\n"); |
149 | } |
191 | } |
150 | |
192 | |
151 | envv->push_back (0); |
193 | envv->push_back (0); |
152 | |
194 | |
153 | { |
195 | { |
154 | char **old_environ = environ; |
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155 | environ = envv->begin (); |
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156 | |
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157 | rxvt_term *term = new rxvt_term; |
196 | rxvt_term *term = new rxvt_term; |
158 | |
197 | |
159 | term->log_hook = &log_cb; |
198 | term->log_hook = &log_cb; |
160 | term->argv = argv; |
199 | term->getfd_hook = &getfd_cb; |
161 | term->envv = envv; |
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162 | |
200 | |
163 | bool success; |
201 | bool success = true; |
164 | |
202 | |
165 | try |
203 | try |
166 | { |
204 | { |
167 | success = term->init (argv->size (), argv->begin ()); |
205 | term->init (argv, envv); |
168 | } |
206 | } |
169 | catch (const class rxvt_failure_exception &e) |
207 | catch (const class rxvt_failure_exception &e) |
170 | { |
208 | { |
171 | success = false; |
209 | success = false; |
172 | } |
210 | } |
173 | |
211 | |
174 | environ = old_environ; |
212 | term->log_hook = 0; |
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213 | |
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214 | chdir ("/"); |
175 | |
215 | |
176 | if (!success) |
216 | if (!success) |
177 | term->destroy (); |
217 | term->destroy (); |
178 | |
218 | |
179 | send ("END"); send (success ? 1 : 0); |
219 | send ("END"); send (success ? 1 : 0); |
180 | } |
220 | } |
181 | } |
221 | } |
182 | else |
222 | else |
183 | return err ("protocol error: request '%s' unsupported.", (char *)tok); |
223 | return err ("protocol error: request '%s' unsupported.\n", (char *)tok); |
184 | } |
224 | } |
185 | else |
225 | else |
186 | return err (); |
226 | return err (); |
187 | } |
227 | } |
188 | |
228 | |
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229 | int opt_fork, opt_opendisplay, opt_quiet; |
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230 | |
189 | int |
231 | int |
190 | main (int argc, const char *const *argv) |
232 | main (int argc, const char *const *argv) |
191 | { |
233 | { |
192 | rxvt_init_signals (); |
234 | rxvt_init (); |
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235 | |
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236 | for (int i = 1; i < argc; i++) |
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237 | { |
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238 | if (!strcmp (argv [i], "-f") || !strcmp (argv [i], "--fork")) |
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239 | opt_fork = 1; |
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240 | else if (!strcmp (argv [i], "-o") || !strcmp (argv [i], "--opendisplay")) |
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241 | opt_opendisplay = 1; |
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242 | else if (!strcmp (argv [i], "-q") || !strcmp (argv [i], "--quiet")) |
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243 | opt_quiet = 1; |
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244 | else |
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245 | { |
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246 | rxvt_log ("%s: unknown option '%s', aborting.\n", argv [0], argv [i]); |
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247 | return EXIT_FAILURE; |
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248 | } |
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249 | } |
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250 | |
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251 | chdir ("/"); |
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252 | |
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253 | if (opt_opendisplay) |
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254 | displays.get (getenv ("DISPLAY")); // open display and never release it |
193 | |
255 | |
194 | char *sockname = rxvt_connection::unix_sockname (); |
256 | char *sockname = rxvt_connection::unix_sockname (); |
195 | unix_listener l (sockname); |
257 | unix_listener l (sockname); |
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258 | |
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259 | if (!opt_quiet) |
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260 | { |
196 | printf ("rxvtd listening on %s.\n", sockname); |
261 | printf ("rxvt-unicode daemon listening on %s.\n", sockname); |
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262 | fflush (stdout); |
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263 | } |
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264 | |
197 | free (sockname); |
265 | free (sockname); |
198 | |
266 | |
199 | iom.loop (); |
267 | if (opt_fork) |
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268 | { |
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269 | pid_t pid = fork (); |
200 | |
270 | |
201 | #if 0 |
271 | if (pid < 0) |
202 | if (rxvt_init (argc, argv) == NULL) |
272 | { |
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273 | rxvt_log ("unable to fork daemon, aborting.\n"); |
203 | return EXIT_FAILURE; |
274 | return EXIT_FAILURE; |
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275 | } |
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276 | else if (pid > 0) |
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277 | _exit (EXIT_SUCCESS); |
204 | |
278 | |
205 | dR; |
279 | ev_default_fork (); |
206 | rxvt_main_loop (aR); /* main processing loop */ |
280 | } |
207 | #endif |
281 | |
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282 | ev_loop (0); |
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283 | |
208 | return EXIT_SUCCESS; |
284 | return EXIT_SUCCESS; |
209 | } |
285 | } |
210 | |
286 | |