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1 | /*--------------------------------*-C-*---------------------------------* |
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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) 2003-2004 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 | |
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23 | #include "../config.h" |
1 | #include "rxvtlib.h" |
24 | #include "rxvt.h" |
2 | #include "rxvtdaemon.h" |
25 | #include "rxvtdaemon.h" |
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26 | #include "fdpass.h" |
3 | #include "iom.h" |
27 | #include "iom.h" |
4 | |
28 | |
5 | #include <cstdio> |
29 | #include <cstdio> |
6 | #include <cstdlib> |
30 | #include <cstdlib> |
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31 | #include <cstdarg> |
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32 | #include <cstring> |
7 | |
33 | |
8 | #include <unistd.h> |
34 | #include <unistd.h> |
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35 | #include <fcntl.h> |
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36 | #include <sys/types.h> |
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37 | #include <sys/stat.h> |
9 | #include <sys/socket.h> |
38 | #include <sys/socket.h> |
10 | #include <sys/un.h> |
39 | #include <sys/un.h> |
11 | |
40 | |
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41 | #include <cerrno> |
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42 | |
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43 | extern char **environ; |
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44 | |
12 | struct server : rxvt_connection { |
45 | struct server : rxvt_connection { |
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46 | log_callback log_cb; |
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47 | getfd_callback getfd_cb; |
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48 | |
13 | void read_cb (io_watcher &w, short revents); io_watcher read_ev; |
49 | void read_cb (io_watcher &w, short revents); io_watcher read_ev; |
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50 | void log_msg (const char *msg); |
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51 | int getfd (int remote_fd); |
14 | |
52 | |
15 | server (int fd) |
53 | server (int fd) |
16 | : read_ev (this, &server::read_cb) |
54 | : read_ev (this, &server::read_cb), |
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55 | log_cb (this, &server::log_msg), |
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56 | getfd_cb (this, &server::getfd) |
17 | { |
57 | { |
18 | this->fd = fd; |
58 | this->fd = fd; |
19 | read_ev.start (fd, EVENT_READ); |
59 | read_ev.start (fd, EVENT_READ); |
20 | } |
60 | } |
21 | |
61 | |
22 | void err (); |
62 | void err (const char *format = 0, ...); |
23 | }; |
63 | }; |
24 | |
64 | |
25 | struct listener { |
65 | struct unix_listener { |
26 | int fd; |
66 | int fd; |
27 | |
67 | |
28 | void accept_cb (io_watcher &w, short revents); io_watcher accept_ev; |
68 | void accept_cb (io_watcher &w, short revents); io_watcher accept_ev; |
29 | |
69 | |
30 | listener (); |
70 | unix_listener (const char *sockname); |
31 | }; |
71 | }; |
32 | |
72 | |
33 | listener::listener () |
73 | unix_listener::unix_listener (const char *sockname) |
34 | : accept_ev (this, &listener::accept_cb) |
74 | : accept_ev (this, &unix_listener::accept_cb) |
35 | { |
75 | { |
36 | if ((fd = socket (PF_LOCAL, SOCK_STREAM, 0)) < 0) |
76 | if ((fd = socket (PF_UNIX, SOCK_STREAM, 0)) < 0) |
37 | { |
77 | { |
38 | perror ("unable to create listening socket"); |
78 | perror ("unable to create listening socket"); |
39 | exit (EXIT_FAILURE); |
79 | exit (EXIT_FAILURE); |
40 | } |
80 | } |
41 | |
81 | |
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82 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
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83 | |
42 | sockaddr_un sa; |
84 | sockaddr_un sa; |
43 | |
85 | |
44 | sa.sun_family = AF_UNIX; |
86 | sa.sun_family = AF_UNIX; |
45 | strcpy (sa.sun_path, rxvt_connection::unix_sockname ()); |
87 | strcpy (sa.sun_path, sockname); |
46 | |
88 | |
47 | unlink (rxvt_connection::unix_sockname ()); |
89 | unlink (rxvt_connection::unix_sockname ()); |
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90 | |
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91 | mode_t omask = umask (0077); |
48 | |
92 | |
49 | if (bind (fd, (sockaddr *)&sa, sizeof (sa))) |
93 | if (bind (fd, (sockaddr *)&sa, sizeof (sa))) |
50 | { |
94 | { |
51 | perror ("unable to bind listening socket"); |
95 | perror ("unable to bind listening socket"); |
52 | exit (EXIT_FAILURE); |
96 | exit (EXIT_FAILURE); |
53 | } |
97 | } |
54 | |
98 | |
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99 | umask (omask); |
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100 | |
55 | if (listen (fd, 5)) |
101 | if (listen (fd, 5)) |
56 | { |
102 | { |
57 | perror ("unable to listen on socket"); |
103 | perror ("unable to listen on socket"); |
58 | exit (EXIT_FAILURE); |
104 | exit (EXIT_FAILURE); |
59 | } |
105 | } |
60 | |
106 | |
61 | accept_ev.start (fd, EVENT_READ); |
107 | accept_ev.start (fd, EVENT_READ); |
62 | } |
108 | } |
63 | |
109 | |
64 | void listener::accept_cb (io_watcher &w, short revents) |
110 | void unix_listener::accept_cb (io_watcher &w, short revents) |
65 | { |
111 | { |
66 | int fd2 = accept (fd, 0, 0); |
112 | int fd2 = accept (fd, 0, 0); |
67 | |
113 | |
68 | if (fd2 >= 0) |
114 | if (fd2 >= 0) |
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115 | { |
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116 | fcntl (fd2, F_SETFD, FD_CLOEXEC); |
69 | new server (fd2); |
117 | new server (fd2); |
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118 | } |
70 | } |
119 | } |
71 | |
120 | |
72 | void server::err () |
121 | int server::getfd (int remote_fd) |
73 | { |
122 | { |
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123 | #if ENABLE_FRILLS && HAVE_UNIX_FDPASS |
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124 | send ("GETFD"); |
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125 | send (remote_fd); |
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126 | return rxvt_recv_fd (fd); |
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127 | #else |
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128 | return -1; |
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129 | #endif |
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130 | } |
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131 | |
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132 | void server::log_msg (const char *msg) |
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133 | { |
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134 | send ("MSG"), send (msg); |
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135 | } |
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136 | |
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137 | void server::err (const char *format, ...) |
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138 | { |
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139 | if (format) |
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140 | { |
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141 | char err[1024]; |
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142 | |
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143 | va_list ap; |
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144 | va_start (ap, format); |
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145 | vsnprintf (err, 1024, format, ap); |
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146 | va_end (ap); |
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147 | |
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148 | send ("MSG"), send (err); |
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149 | } |
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150 | |
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151 | send ("END", 0); |
74 | close (fd); |
152 | close (fd); |
75 | delete this; |
153 | delete this; |
76 | } |
154 | } |
77 | |
155 | |
78 | void server::read_cb (io_watcher &w, short revents) |
156 | void server::read_cb (io_watcher &w, short revents) |
… | |
… | |
81 | |
159 | |
82 | if (recv (tok)) |
160 | if (recv (tok)) |
83 | { |
161 | { |
84 | if (!strcmp (tok, "NEW")) |
162 | if (!strcmp (tok, "NEW")) |
85 | { |
163 | { |
86 | auto_str display, cwd; |
164 | stringvec *argv = new stringvec; |
87 | simplevec<auto_str> argv; |
165 | stringvec *envv = new stringvec; |
88 | |
166 | |
89 | for (;;) |
167 | for (;;) |
90 | { |
168 | { |
91 | if (!recv (tok)) |
169 | if (!recv (tok)) |
92 | return err (); |
170 | return err (); |
93 | |
171 | |
94 | if (!strcmp (tok, "END")) |
172 | if (!strcmp (tok, "END")) |
95 | break; |
173 | break; |
96 | else if (!strcmp (tok, "DISPLAY") && recv (display)) |
174 | else if (!strcmp (tok, "ENV") && recv (tok)) |
97 | ; |
175 | envv->push_back (tok.get ()); |
98 | else if (!strcmp (tok, "CWD") && recv (cwd)) |
176 | else if (!strcmp (tok, "CWD") && recv (tok)) |
99 | ; |
177 | { |
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178 | if (chdir (tok)) |
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179 | err ("unable to change to working directory to '%s': %s", |
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180 | (char *)tok, strerror (errno)); |
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181 | } |
100 | else if (!strcmp (tok, "ARG") && recv (tok)) |
182 | else if (!strcmp (tok, "ARG") && recv (tok)) |
101 | argv.push_back (tok); |
183 | argv->push_back (tok.get ()); |
102 | else |
184 | else |
103 | return err (); |
185 | return err ("protocol error: unexpected NEW token"); |
104 | } |
186 | } |
105 | |
187 | |
106 | // TODO: no setenv, please |
188 | envv->push_back (0); |
107 | setenv ("DISPLAY", display.get (), 1); |
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108 | |
189 | |
109 | rxvt_init (argv.size (), reinterpret_cast<char **>(argv.begin ())); |
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110 | dR; |
190 | { |
111 | rxvt_main_loop (aR); |
191 | rxvt_term *term = new rxvt_term; |
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192 | |
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193 | term->log_hook = &log_cb; |
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194 | term->getfd_hook = &getfd_cb; |
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195 | term->argv = argv; |
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196 | term->envv = envv; |
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197 | |
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198 | bool success; |
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199 | |
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200 | try |
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201 | { |
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202 | success = term->init (argv->size (), argv->begin ()); |
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203 | } |
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204 | catch (const class rxvt_failure_exception &e) |
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205 | { |
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206 | success = false; |
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207 | } |
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208 | |
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209 | term->log_hook = 0; |
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210 | |
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211 | chdir ("/"); |
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212 | |
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213 | if (!success) |
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214 | term->destroy (); |
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215 | |
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216 | send ("END"); send (success ? 1 : 0); |
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217 | } |
112 | } |
218 | } |
113 | else |
219 | else |
114 | return err (); |
220 | return err ("protocol error: request '%s' unsupported.", (char *)tok); |
115 | } |
221 | } |
116 | else |
222 | else |
117 | return err (); |
223 | return err (); |
118 | } |
224 | } |
119 | |
225 | |
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226 | int opt_fork, opt_opendisplay, opt_quiet; |
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227 | |
120 | int |
228 | int |
121 | main(int argc, const char *const *argv) |
229 | main (int argc, const char *const *argv) |
122 | { |
230 | { |
123 | listener l; |
231 | for (int i = 1; i < argc; i++) |
124 | iom.loop (); |
232 | { |
125 | |
233 | if (!strcmp (argv [i], "-f") || !strcmp (argv [i], "--fork")) |
126 | #if 0 |
234 | opt_fork = 1; |
127 | if (rxvt_init(argc, argv) == NULL) |
235 | else if (!strcmp (argv [i], "-o") || !strcmp (argv [i], "--opendisplay")) |
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236 | opt_opendisplay = 1; |
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237 | else if (!strcmp (argv [i], "-q") || !strcmp (argv [i], "--quiet")) |
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238 | opt_quiet = 1; |
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239 | else |
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240 | { |
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241 | rxvt_log ("%s: unknown option '%s', aborting.\n", argv [0], argv [i]); |
128 | return EXIT_FAILURE; |
242 | return EXIT_FAILURE; |
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243 | } |
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244 | } |
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245 | |
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246 | rxvt_init (); |
129 | |
247 | |
130 | dR; |
248 | chdir ("/"); |
131 | rxvt_main_loop(aR); /* main processing loop */ |
249 | |
132 | #endif |
250 | if (opt_opendisplay) |
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251 | displays.get (getenv ("DISPLAY")); // open display and never release it |
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252 | |
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253 | char *sockname = rxvt_connection::unix_sockname (); |
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254 | unix_listener l (sockname); |
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255 | |
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256 | if (!opt_quiet) |
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257 | { |
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258 | printf ("rxvt-unicode daemon listening on %s.\n", sockname); |
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259 | fflush (stdout); |
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260 | } |
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261 | |
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262 | free (sockname); |
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263 | |
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264 | if (opt_fork) |
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265 | { |
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266 | pid_t pid = fork (); |
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267 | |
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268 | if (pid < 0) |
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269 | { |
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270 | rxvt_log ("unable to fork daemon, aborting.\n"); |
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271 | return EXIT_FAILURE; |
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272 | } |
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273 | else if (pid > 0) |
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274 | _exit (EXIT_SUCCESS); |
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275 | } |
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276 | |
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277 | io_manager::loop (); |
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278 | |
133 | return EXIT_SUCCESS; |
279 | return EXIT_SUCCESS; |
134 | } |
280 | } |
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281 | |