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) 2003-2007 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> |
11 | #include <sys/types.h> |
31 | #include <sys/types.h> |
12 | #include <sys/stat.h> |
32 | #include <sys/stat.h> |
13 | #include <sys/socket.h> |
33 | #include <sys/socket.h> |
14 | #include <sys/un.h> |
34 | #include <sys/un.h> |
15 | |
35 | |
16 | #include <cerrno> |
36 | #include <cerrno> |
17 | |
37 | |
18 | extern char **environ; |
38 | #include "rxvt.h" |
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39 | #include "rxvtdaemon.h" |
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40 | #include "libptytty.h" |
19 | |
41 | |
20 | struct server : rxvt_connection { |
42 | struct server : rxvt_connection { |
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43 | log_callback log_cb; |
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44 | getfd_callback getfd_cb; |
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45 | |
21 | 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; |
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47 | void log_msg (const char *msg); |
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48 | int getfd (int remote_fd); |
22 | |
49 | |
23 | server (int fd) |
50 | server (int fd) |
24 | : read_ev (this, &server::read_cb) |
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25 | { |
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 | |
26 | 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); |
27 | read_ev.start (fd, EVENT_READ); |
59 | read_ev.start (fd, ev::READ); |
28 | } |
60 | } |
29 | |
61 | |
30 | void err (const char *format = 0, ...); |
62 | void err (const char *format = 0, ...); |
31 | }; |
63 | }; |
32 | |
64 | |
33 | struct unix_listener { |
65 | struct unix_listener { |
34 | int fd; |
66 | int fd; |
35 | |
67 | |
36 | 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; |
37 | |
69 | |
38 | unix_listener (const char *sockname); |
70 | unix_listener (const char *sockname); |
39 | }; |
71 | }; |
40 | |
72 | |
41 | unix_listener::unix_listener (const char *sockname) |
73 | unix_listener::unix_listener (const char *sockname) |
42 | : accept_ev (this, &unix_listener::accept_cb) |
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43 | { |
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 | |
44 | if ((fd = socket (PF_LOCAL, SOCK_STREAM, 0)) < 0) |
85 | if ((fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) |
45 | { |
86 | { |
46 | perror ("unable to create listening socket"); |
87 | perror ("unable to create listening socket"); |
47 | exit (EXIT_FAILURE); |
88 | exit (EXIT_FAILURE); |
48 | } |
89 | } |
49 | |
90 | |
50 | sockaddr_un sa; |
91 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
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92 | fcntl (fd, F_SETFL, O_NONBLOCK); |
51 | |
93 | |
52 | sa.sun_family = AF_UNIX; |
94 | sa.sun_family = AF_UNIX; |
53 | strcpy (sa.sun_path, sockname); |
95 | strcpy (sa.sun_path, sockname); |
54 | |
96 | |
55 | unlink (rxvt_connection::unix_sockname ()); |
97 | unlink (rxvt_connection::unix_sockname ()); |
… | |
… | |
68 | { |
110 | { |
69 | perror ("unable to listen on socket"); |
111 | perror ("unable to listen on socket"); |
70 | exit (EXIT_FAILURE); |
112 | exit (EXIT_FAILURE); |
71 | } |
113 | } |
72 | |
114 | |
73 | accept_ev.start (fd, EVENT_READ); |
115 | accept_ev.start (fd, ev::READ); |
74 | } |
116 | } |
75 | |
117 | |
76 | void unix_listener::accept_cb (io_watcher &w, short revents) |
118 | void unix_listener::accept_cb (ev::io &w, int revents) |
77 | { |
119 | { |
78 | int fd2 = accept (fd, 0, 0); |
120 | int fd2 = accept (fd, 0, 0); |
79 | |
121 | |
80 | if (fd2 >= 0) |
122 | if (fd2 >= 0) |
81 | new server (fd2); |
123 | new server (fd2); |
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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); |
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131 | } |
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132 | |
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133 | void server::log_msg (const char *msg) |
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134 | { |
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135 | send ("MSG"), send (msg); |
82 | } |
136 | } |
83 | |
137 | |
84 | void server::err (const char *format, ...) |
138 | void server::err (const char *format, ...) |
85 | { |
139 | { |
86 | if (format) |
140 | if (format) |
… | |
… | |
90 | va_list ap; |
144 | va_list ap; |
91 | va_start (ap, format); |
145 | va_start (ap, format); |
92 | vsnprintf (err, 1024, format, ap); |
146 | vsnprintf (err, 1024, format, ap); |
93 | va_end (ap); |
147 | va_end (ap); |
94 | |
148 | |
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149 | log_msg (err); |
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150 | } |
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151 | |
95 | send ("ERR"), send (err); |
152 | send ("END"), send (0); |
96 | } |
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97 | |
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98 | close (fd); |
153 | close (fd); |
99 | delete this; |
154 | delete this; |
100 | } |
155 | } |
101 | |
156 | |
102 | void server::read_cb (io_watcher &w, short revents) |
157 | void server::read_cb (ev::io &w, int revents) |
103 | { |
158 | { |
104 | auto_str tok; |
159 | auto_str tok; |
105 | |
160 | |
106 | if (recv (tok)) |
161 | if (recv (tok)) |
107 | { |
162 | { |
108 | if (!strcmp (tok, "NEW")) |
163 | if (!strcmp (tok, "NEW")) |
109 | { |
164 | { |
110 | stringvec argv; |
165 | stringvec *argv = new stringvec; |
111 | stringvec envv; |
166 | stringvec *envv = new stringvec; |
112 | |
167 | |
113 | for (;;) |
168 | for (;;) |
114 | { |
169 | { |
115 | if (!recv (tok)) |
170 | if (!recv (tok)) |
116 | return err (); |
171 | return err (); |
117 | |
172 | |
118 | if (!strcmp (tok, "END")) |
173 | if (!strcmp (tok, "END")) |
119 | break; |
174 | break; |
120 | else if (!strcmp (tok, "ENV") && recv (tok)) |
175 | else if (!strcmp (tok, "ENV") && recv (tok)) |
121 | envv.push_back (tok.get ()); |
176 | envv->push_back (strdup (tok)); |
122 | else if (!strcmp (tok, "CWD") && recv (tok)) |
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123 | { |
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124 | if (chdir (tok)) |
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125 | err ("unable to change to working directory to '%s': %s", |
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126 | (char *)tok, strerror (errno)); |
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127 | } |
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128 | else if (!strcmp (tok, "ARG") && recv (tok)) |
177 | else if (!strcmp (tok, "ARG") && recv (tok)) |
129 | argv.push_back (tok.get ()); |
178 | argv->push_back (strdup (tok)); |
130 | else |
179 | else |
131 | return err ("protocol error: unexpected NEW token"); |
180 | return err ("protocol error: unexpected NEW token.\n"); |
132 | } |
181 | } |
133 | |
182 | |
134 | envv.push_back (0); |
183 | envv->push_back (0); |
135 | |
184 | |
136 | { |
185 | { |
137 | char **old_environ = environ; |
186 | rxvt_term *term = new rxvt_term; |
138 | environ = envv.begin (); |
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139 | |
187 | |
140 | rxvt_init (argv.size (), argv.begin ()); |
188 | term->log_hook = &log_cb; |
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189 | term->getfd_hook = &getfd_cb; |
141 | |
190 | |
142 | environ = old_environ; |
191 | bool success = true; |
143 | envv.clear (); // can't yet save the env 'cause rxvt modifies it :( |
192 | |
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193 | try |
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194 | { |
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195 | term->init (argv, envv); |
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196 | } |
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197 | catch (const class rxvt_failure_exception &e) |
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198 | { |
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199 | success = false; |
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200 | } |
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201 | |
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202 | term->log_hook = 0; |
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203 | |
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204 | chdir ("/"); // init might change to different working directory |
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205 | |
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206 | if (!success) |
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207 | term->destroy (); |
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208 | |
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209 | send ("END"); send (success ? 1 : 0); |
144 | } |
210 | } |
145 | } |
211 | } |
146 | else |
212 | else |
147 | return err ("protocol error: request '%s' unsupported.", (char *)tok); |
213 | return err ("protocol error: request '%s' unsupported.\n", (char *)tok); |
148 | } |
214 | } |
149 | else |
215 | else |
150 | return err (); |
216 | return err (); |
151 | } |
217 | } |
152 | |
218 | |
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219 | int opt_fork, opt_opendisplay, opt_quiet; |
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220 | |
153 | int |
221 | int |
154 | main(int argc, const char *const *argv) |
222 | main (int argc, const char *const *argv) |
155 | { |
223 | { |
156 | rxvt_init_signals (); |
224 | rxvt_init (); |
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225 | |
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226 | for (int i = 1; i < argc; i++) |
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227 | { |
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228 | if (!strcmp (argv [i], "-f") || !strcmp (argv [i], "--fork")) |
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229 | opt_fork = 1; |
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230 | else if (!strcmp (argv [i], "-o") || !strcmp (argv [i], "--opendisplay")) |
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231 | opt_opendisplay = 1; |
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232 | else if (!strcmp (argv [i], "-q") || !strcmp (argv [i], "--quiet")) |
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233 | opt_quiet = 1; |
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234 | else |
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235 | { |
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236 | rxvt_log ("%s: unknown option '%s', aborting.\n", argv [0], argv [i]); |
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237 | return EXIT_FAILURE; |
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238 | } |
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239 | } |
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240 | |
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241 | // optionally open display and never release it. |
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242 | if (opt_opendisplay) |
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243 | if (const char *dpy = getenv ("DISPLAY")) |
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244 | displays.get (dpy ? dpy : ":0"); // move string logic into rxvt_display maybe? |
157 | |
245 | |
158 | char *sockname = rxvt_connection::unix_sockname (); |
246 | char *sockname = rxvt_connection::unix_sockname (); |
159 | unix_listener l (sockname); |
247 | unix_listener l (sockname); |
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248 | |
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249 | chdir ("/"); |
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250 | |
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251 | if (!opt_quiet) |
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252 | { |
160 | printf ("rxvtd listening on %s.\n", sockname); |
253 | printf ("rxvt-unicode daemon listening on %s.\n", sockname); |
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254 | fflush (stdout); |
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255 | } |
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256 | |
161 | free (sockname); |
257 | free (sockname); |
162 | |
258 | |
163 | iom.loop (); |
259 | if (opt_fork) |
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260 | { |
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261 | pid_t pid = fork (); |
164 | |
262 | |
165 | #if 0 |
263 | if (pid < 0) |
166 | if (rxvt_init(argc, argv) == NULL) |
264 | { |
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265 | rxvt_log ("unable to fork daemon, aborting.\n"); |
167 | return EXIT_FAILURE; |
266 | return EXIT_FAILURE; |
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267 | } |
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268 | else if (pid > 0) |
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269 | _exit (EXIT_SUCCESS); |
168 | |
270 | |
169 | dR; |
271 | ev_default_fork (); |
170 | rxvt_main_loop(aR); /* main processing loop */ |
272 | } |
171 | #endif |
273 | |
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274 | ev_loop (0); |
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275 | |
172 | return EXIT_SUCCESS; |
276 | return EXIT_SUCCESS; |
173 | } |
277 | } |
174 | |
278 | |