1 | #include "rxvtlib.h" |
1 | /*----------------------------------------------------------------------* |
2 | #include "rxvtdaemon.h" |
2 | * File: rxvtd.C |
3 | #include "iom.h" |
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 | *----------------------------------------------------------------------*/ |
4 | |
22 | |
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23 | #include "../config.h" |
5 | #include <cstdio> |
24 | #include <cstdio> |
6 | #include <cstdlib> |
25 | #include <cstdlib> |
7 | #include <cstdarg> |
26 | #include <cstdarg> |
8 | #include <cstring> |
27 | #include <cstring> |
9 | |
28 | |
10 | #include <unistd.h> |
29 | #include <unistd.h> |
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30 | #include <fcntl.h> |
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31 | #include <sys/types.h> |
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32 | #include <sys/stat.h> |
11 | #include <sys/socket.h> |
33 | #include <sys/socket.h> |
12 | #include <sys/un.h> |
34 | #include <sys/un.h> |
13 | |
35 | |
14 | #include <cerrno> |
36 | #include <cerrno> |
15 | |
37 | |
16 | extern char **environ; |
38 | #include "rxvt.h" |
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39 | #include "rxvtdaemon.h" |
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40 | #include "libptytty.h" |
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41 | #include "iom.h" |
17 | |
42 | |
18 | struct server : rxvt_connection { |
43 | struct server : rxvt_connection { |
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44 | log_callback log_cb; |
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45 | getfd_callback getfd_cb; |
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46 | |
19 | void read_cb (io_watcher &w, short revents); io_watcher read_ev; |
47 | void read_cb (io_watcher &w, short revents); io_watcher read_ev; |
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48 | void log_msg (const char *msg); |
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49 | int getfd (int remote_fd); |
20 | |
50 | |
21 | server (int fd) |
51 | server (int fd) |
22 | : read_ev (this, &server::read_cb) |
52 | : read_ev (this, &server::read_cb), |
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53 | log_cb (this, &server::log_msg), |
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54 | getfd_cb (this, &server::getfd) |
23 | { |
55 | { |
24 | this->fd = fd; |
56 | this->fd = fd; |
25 | read_ev.start (fd, EVENT_READ); |
57 | read_ev.start (fd, EVENT_READ); |
26 | } |
58 | } |
27 | |
59 | |
28 | void err (const char *format = 0, ...); |
60 | void err (const char *format = 0, ...); |
29 | }; |
61 | }; |
30 | |
62 | |
31 | struct listener { |
63 | struct unix_listener { |
32 | int fd; |
64 | int fd; |
33 | |
65 | |
34 | void accept_cb (io_watcher &w, short revents); io_watcher accept_ev; |
66 | void accept_cb (io_watcher &w, short revents); io_watcher accept_ev; |
35 | |
67 | |
36 | listener (); |
68 | unix_listener (const char *sockname); |
37 | }; |
69 | }; |
38 | |
70 | |
39 | listener::listener () |
71 | unix_listener::unix_listener (const char *sockname) |
40 | : accept_ev (this, &listener::accept_cb) |
72 | : accept_ev (this, &unix_listener::accept_cb) |
41 | { |
73 | { |
42 | if ((fd = socket (PF_LOCAL, SOCK_STREAM, 0)) < 0) |
74 | if ((fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) |
43 | { |
75 | { |
44 | perror ("unable to create listening socket"); |
76 | perror ("unable to create listening socket"); |
45 | exit (EXIT_FAILURE); |
77 | exit (EXIT_FAILURE); |
46 | } |
78 | } |
47 | |
79 | |
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80 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
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81 | |
48 | sockaddr_un sa; |
82 | sockaddr_un sa; |
49 | |
83 | |
50 | sa.sun_family = AF_UNIX; |
84 | sa.sun_family = AF_UNIX; |
51 | strcpy (sa.sun_path, rxvt_connection::unix_sockname ()); |
85 | strcpy (sa.sun_path, sockname); |
52 | |
86 | |
53 | unlink (rxvt_connection::unix_sockname ()); |
87 | unlink (rxvt_connection::unix_sockname ()); |
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88 | |
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89 | mode_t omask = umask (0077); |
54 | |
90 | |
55 | if (bind (fd, (sockaddr *)&sa, sizeof (sa))) |
91 | if (bind (fd, (sockaddr *)&sa, sizeof (sa))) |
56 | { |
92 | { |
57 | perror ("unable to bind listening socket"); |
93 | perror ("unable to bind listening socket"); |
58 | exit (EXIT_FAILURE); |
94 | exit (EXIT_FAILURE); |
59 | } |
95 | } |
60 | |
96 | |
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97 | umask (omask); |
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98 | |
61 | if (listen (fd, 5)) |
99 | if (listen (fd, 5)) |
62 | { |
100 | { |
63 | perror ("unable to listen on socket"); |
101 | perror ("unable to listen on socket"); |
64 | exit (EXIT_FAILURE); |
102 | exit (EXIT_FAILURE); |
65 | } |
103 | } |
66 | |
104 | |
67 | accept_ev.start (fd, EVENT_READ); |
105 | accept_ev.start (fd, EVENT_READ); |
68 | } |
106 | } |
69 | |
107 | |
70 | void listener::accept_cb (io_watcher &w, short revents) |
108 | void unix_listener::accept_cb (io_watcher &w, short revents) |
71 | { |
109 | { |
72 | int fd2 = accept (fd, 0, 0); |
110 | int fd2 = accept (fd, 0, 0); |
73 | |
111 | |
74 | if (fd2 >= 0) |
112 | if (fd2 >= 0) |
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113 | { |
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114 | fcntl (fd2, F_SETFD, FD_CLOEXEC); |
75 | new server (fd2); |
115 | new server (fd2); |
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116 | } |
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117 | } |
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118 | |
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119 | int server::getfd (int remote_fd) |
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120 | { |
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121 | send ("GETFD"); |
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122 | send (remote_fd); |
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123 | return ptytty::recv_fd (fd); |
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124 | } |
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125 | |
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126 | void server::log_msg (const char *msg) |
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127 | { |
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128 | send ("MSG"), send (msg); |
76 | } |
129 | } |
77 | |
130 | |
78 | void server::err (const char *format, ...) |
131 | void server::err (const char *format, ...) |
79 | { |
132 | { |
80 | if (format) |
133 | if (format) |
… | |
… | |
84 | va_list ap; |
137 | va_list ap; |
85 | va_start (ap, format); |
138 | va_start (ap, format); |
86 | vsnprintf (err, 1024, format, ap); |
139 | vsnprintf (err, 1024, format, ap); |
87 | va_end (ap); |
140 | va_end (ap); |
88 | |
141 | |
89 | send ("ERR"), send (err); |
142 | send ("MSG"), send (err); |
90 | } |
143 | } |
91 | |
144 | |
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145 | send ("END", 0); |
92 | close (fd); |
146 | close (fd); |
93 | delete this; |
147 | delete this; |
94 | } |
148 | } |
95 | |
149 | |
96 | void server::read_cb (io_watcher &w, short revents) |
150 | void server::read_cb (io_watcher &w, short revents) |
… | |
… | |
99 | |
153 | |
100 | if (recv (tok)) |
154 | if (recv (tok)) |
101 | { |
155 | { |
102 | if (!strcmp (tok, "NEW")) |
156 | if (!strcmp (tok, "NEW")) |
103 | { |
157 | { |
104 | stringvec argv; |
158 | stringvec *argv = new stringvec; |
105 | stringvec envv; |
159 | stringvec *envv = new stringvec; |
106 | |
160 | |
107 | for (;;) |
161 | for (;;) |
108 | { |
162 | { |
109 | if (!recv (tok)) |
163 | if (!recv (tok)) |
110 | return err (); |
164 | return err (); |
111 | |
165 | |
112 | if (!strcmp (tok, "END")) |
166 | if (!strcmp (tok, "END")) |
113 | break; |
167 | break; |
114 | else if (!strcmp (tok, "ENV") && recv (tok)) |
168 | else if (!strcmp (tok, "ENV") && recv (tok)) |
115 | envv.push_back (tok.get ()); |
169 | envv->push_back (strdup (tok)); |
116 | else if (!strcmp (tok, "CWD") && recv (tok)) |
170 | else if (!strcmp (tok, "CWD") && recv (tok)) |
117 | { |
171 | { |
118 | if (chdir (tok)) |
172 | if (chdir (tok)) |
119 | err ("unable to change to working directory to '%s': %s", |
173 | err ("unable to change to working directory to '%s': %s", |
120 | (char *)tok, strerror (errno)); |
174 | (char *)tok, strerror (errno)); |
121 | } |
175 | } |
122 | else if (!strcmp (tok, "ARG") && recv (tok)) |
176 | else if (!strcmp (tok, "ARG") && recv (tok)) |
123 | argv.push_back (tok.get ()); |
177 | argv->push_back (strdup (tok)); |
124 | else |
178 | else |
125 | return err ("protocol error: unexpected NEW token"); |
179 | return err ("protocol error: unexpected NEW token"); |
126 | } |
180 | } |
127 | |
181 | |
128 | envv.push_back (0); |
182 | envv->push_back (0); |
129 | |
183 | |
130 | { |
184 | { |
131 | char **old_environ = environ; |
185 | rxvt_term *term = new rxvt_term; |
132 | environ = envv.begin (); |
186 | |
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187 | term->log_hook = &log_cb; |
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188 | term->getfd_hook = &getfd_cb; |
133 | |
189 | |
134 | rxvt_init (argv.size (), argv.begin ()); |
190 | bool success; |
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191 | |
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192 | try |
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193 | { |
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194 | success = term->init (argv, envv); |
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195 | } |
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196 | catch (const class rxvt_failure_exception &e) |
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197 | { |
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198 | success = false; |
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199 | } |
135 | |
200 | |
136 | environ = old_environ; |
201 | term->log_hook = 0; |
137 | envv.clear (); // can't yet save the env 'cause rxvt modifies it :( |
202 | |
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203 | chdir ("/"); |
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204 | |
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205 | if (!success) |
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206 | term->destroy (); |
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207 | |
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208 | send ("END"); send (success ? 1 : 0); |
138 | } |
209 | } |
139 | } |
210 | } |
140 | else |
211 | else |
141 | return err ("protocol error: request '%s' unsupported.", (char *)tok); |
212 | return err ("protocol error: request '%s' unsupported.", (char *)tok); |
142 | } |
213 | } |
143 | else |
214 | else |
144 | return err (); |
215 | return err (); |
145 | } |
216 | } |
146 | |
217 | |
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218 | int opt_fork, opt_opendisplay, opt_quiet; |
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219 | |
147 | int |
220 | int |
148 | main(int argc, const char *const *argv) |
221 | main (int argc, const char *const *argv) |
149 | { |
222 | { |
150 | listener l; |
223 | rxvt_init (); |
151 | |
224 | |
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225 | for (int i = 1; i < argc; i++) |
152 | { |
226 | { |
153 | sigset_t ss; |
227 | if (!strcmp (argv [i], "-f") || !strcmp (argv [i], "--fork")) |
154 | |
228 | opt_fork = 1; |
155 | sigaddset (&ss, SIGHUP); |
229 | else if (!strcmp (argv [i], "-o") || !strcmp (argv [i], "--opendisplay")) |
156 | sigprocmask (SIG_BLOCK, &ss, 0); |
230 | opt_opendisplay = 1; |
157 | } |
231 | else if (!strcmp (argv [i], "-q") || !strcmp (argv [i], "--quiet")) |
158 | |
232 | opt_quiet = 1; |
159 | printf ("rxvtd running.\n"); |
233 | else |
160 | iom.loop (); |
234 | { |
161 | |
235 | rxvt_log ("%s: unknown option '%s', aborting.\n", argv [0], argv [i]); |
162 | #if 0 |
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163 | if (rxvt_init(argc, argv) == NULL) |
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164 | return EXIT_FAILURE; |
236 | return EXIT_FAILURE; |
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237 | } |
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238 | } |
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239 | |
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240 | chdir ("/"); |
165 | |
241 | |
166 | dR; |
242 | if (opt_opendisplay) |
167 | rxvt_main_loop(aR); /* main processing loop */ |
243 | displays.get (getenv ("DISPLAY")); // open display and never release it |
168 | #endif |
244 | |
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245 | char *sockname = rxvt_connection::unix_sockname (); |
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246 | unix_listener l (sockname); |
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247 | |
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248 | if (!opt_quiet) |
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249 | { |
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250 | printf ("rxvt-unicode daemon listening on %s.\n", sockname); |
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251 | fflush (stdout); |
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252 | } |
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253 | |
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254 | free (sockname); |
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255 | |
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256 | if (opt_fork) |
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257 | { |
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258 | pid_t pid = fork (); |
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259 | |
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260 | if (pid < 0) |
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261 | { |
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262 | rxvt_log ("unable to fork daemon, aborting.\n"); |
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263 | return EXIT_FAILURE; |
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264 | } |
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265 | else if (pid > 0) |
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266 | _exit (EXIT_SUCCESS); |
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267 | } |
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268 | |
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269 | io_manager::loop (); |
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270 | |
169 | return EXIT_SUCCESS; |
271 | return EXIT_SUCCESS; |
170 | } |
272 | } |
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273 | |