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> |
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26 | #include <cstdarg> |
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27 | #include <cstring> |
7 | |
28 | |
8 | #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> |
9 | #include <sys/socket.h> |
33 | #include <sys/socket.h> |
10 | #include <sys/un.h> |
34 | #include <sys/un.h> |
11 | |
35 | |
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36 | #include <cerrno> |
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37 | |
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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 | |
12 | 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 | |
13 | 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); |
14 | |
49 | |
15 | server (int fd) |
50 | server (int fd) |
16 | : read_ev (this, &server::read_cb) |
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) |
17 | { |
54 | { |
18 | this->fd = fd; |
55 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
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56 | fcntl (fd, F_SETFL, 0); |
19 | read_ev.start (fd, EVENT_READ); |
57 | read_ev.start (fd, ev::READ); |
20 | } |
58 | } |
21 | |
59 | |
22 | void err (); |
60 | void err (const char *format = 0, ...); |
23 | }; |
61 | }; |
24 | |
62 | |
25 | struct listener { |
63 | struct unix_listener { |
26 | int fd; |
64 | int fd; |
27 | |
65 | |
28 | void accept_cb (io_watcher &w, short revents); io_watcher accept_ev; |
66 | void accept_cb (ev::io &w, int revents); ev::io accept_ev; |
29 | |
67 | |
30 | listener (); |
68 | unix_listener (const char *sockname); |
31 | }; |
69 | }; |
32 | |
70 | |
33 | listener::listener () |
71 | unix_listener::unix_listener (const char *sockname) |
34 | : accept_ev (this, &listener::accept_cb) |
72 | : accept_ev (this, &unix_listener::accept_cb) |
35 | { |
73 | { |
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74 | sockaddr_un sa; |
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75 | |
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76 | if (strlen (sockname) >= sizeof(sa.sun_path)) |
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77 | { |
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78 | fputs ("socket name too long, aborting.\n", stderr); |
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79 | exit (EXIT_FAILURE); |
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80 | } |
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81 | |
36 | if ((fd = socket (PF_LOCAL, SOCK_STREAM, 0)) < 0) |
82 | if ((fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) |
37 | { |
83 | { |
38 | perror ("unable to create listening socket"); |
84 | perror ("unable to create listening socket"); |
39 | exit (EXIT_FAILURE); |
85 | exit (EXIT_FAILURE); |
40 | } |
86 | } |
41 | |
87 | |
42 | sockaddr_un sa; |
88 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
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89 | fcntl (fd, F_SETFL, O_NONBLOCK); |
43 | |
90 | |
44 | sa.sun_family = AF_UNIX; |
91 | sa.sun_family = AF_UNIX; |
45 | strcpy (sa.sun_path, rxvt_connection::unix_sockname ()); |
92 | strcpy (sa.sun_path, sockname); |
46 | |
93 | |
47 | unlink (rxvt_connection::unix_sockname ()); |
94 | unlink (rxvt_connection::unix_sockname ()); |
48 | |
95 | |
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96 | mode_t omask = umask (0077); |
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97 | |
49 | if (bind (fd, (sockaddr *)&sa, sizeof (sa))) |
98 | if (bind (fd, (sockaddr *)&sa, sizeof (sa))) |
50 | { |
99 | { |
51 | perror ("unable to bind listening socket"); |
100 | perror ("unable to bind listening socket"); |
52 | exit (EXIT_FAILURE); |
101 | exit (EXIT_FAILURE); |
53 | } |
102 | } |
54 | |
103 | |
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104 | umask (omask); |
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105 | |
55 | if (listen (fd, 5)) |
106 | if (listen (fd, 5)) |
56 | { |
107 | { |
57 | perror ("unable to listen on socket"); |
108 | perror ("unable to listen on socket"); |
58 | exit (EXIT_FAILURE); |
109 | exit (EXIT_FAILURE); |
59 | } |
110 | } |
60 | |
111 | |
61 | accept_ev.start (fd, EVENT_READ); |
112 | accept_ev.start (fd, ev::READ); |
62 | } |
113 | } |
63 | |
114 | |
64 | void listener::accept_cb (io_watcher &w, short revents) |
115 | void unix_listener::accept_cb (ev::io &w, int revents) |
65 | { |
116 | { |
66 | int fd2 = accept (fd, 0, 0); |
117 | int fd2 = accept (fd, 0, 0); |
67 | |
118 | |
68 | if (fd2 >= 0) |
119 | if (fd2 >= 0) |
69 | new server (fd2); |
120 | new server (fd2); |
70 | } |
121 | } |
71 | |
122 | |
72 | void server::err () |
123 | int server::getfd (int remote_fd) |
73 | { |
124 | { |
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125 | send ("GETFD"); |
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126 | send (remote_fd); |
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127 | return ptytty::recv_fd (fd); |
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128 | } |
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129 | |
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130 | void server::log_msg (const char *msg) |
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131 | { |
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132 | send ("MSG"), send (msg); |
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133 | } |
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134 | |
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135 | void server::err (const char *format, ...) |
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136 | { |
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137 | if (format) |
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138 | { |
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139 | char err[1024]; |
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140 | |
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141 | va_list ap; |
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142 | va_start (ap, format); |
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143 | vsnprintf (err, 1024, format, ap); |
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144 | va_end (ap); |
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145 | |
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146 | log_msg (err); |
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147 | } |
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148 | |
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149 | send ("END"), send (0); |
74 | close (fd); |
150 | close (fd); |
75 | delete this; |
151 | delete this; |
76 | } |
152 | } |
77 | |
153 | |
78 | void server::read_cb (io_watcher &w, short revents) |
154 | void server::read_cb (ev::io &w, int revents) |
79 | { |
155 | { |
80 | token cmd; |
156 | auto_str tok; |
81 | |
157 | |
82 | if (recv (cmd)) |
158 | if (recv (tok)) |
83 | { |
159 | { |
84 | if (!strcmp (cmd, "NEW")) |
160 | if (!strcmp (tok, "NEW")) |
85 | { |
161 | { |
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162 | stringvec *argv = new stringvec; |
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163 | stringvec *envv = new stringvec; |
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164 | |
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165 | for (;;) |
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166 | { |
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167 | if (!recv (tok)) |
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168 | return err (); |
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169 | |
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170 | if (!strcmp (tok, "END")) |
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171 | break; |
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172 | else if (!strcmp (tok, "ENV") && recv (tok)) |
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173 | envv->push_back (strdup (tok)); |
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174 | else if (!strcmp (tok, "CWD") && recv (tok)) |
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175 | { |
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176 | if (chdir (tok)) |
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177 | { |
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178 | delete envv; |
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179 | delete argv; |
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180 | return err ("unable to change to working directory to '%s', aborting: %s.\n", |
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181 | (char *)tok, strerror (errno)); |
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182 | } |
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183 | } |
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184 | else if (!strcmp (tok, "ARG") && recv (tok)) |
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185 | argv->push_back (strdup (tok)); |
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186 | else |
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187 | return err ("protocol error: unexpected NEW token.\n"); |
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188 | } |
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189 | |
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190 | envv->push_back (0); |
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191 | |
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192 | { |
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193 | rxvt_term *term = new rxvt_term; |
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194 | |
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195 | term->log_hook = &log_cb; |
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196 | term->getfd_hook = &getfd_cb; |
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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, envv); |
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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 | } |
86 | } |
218 | } |
87 | else |
219 | else |
88 | err (); |
220 | return err ("protocol error: request '%s' unsupported.\n", (char *)tok); |
89 | } |
221 | } |
90 | else |
222 | else |
91 | err (); |
223 | return err (); |
92 | } |
224 | } |
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225 | |
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226 | int opt_fork, opt_opendisplay, opt_quiet; |
93 | |
227 | |
94 | int |
228 | int |
95 | main(int argc, const char *const *argv) |
229 | main (int argc, const char *const *argv) |
96 | { |
230 | { |
97 | listener l; |
231 | rxvt_init (); |
98 | iom.loop (); |
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99 | |
232 | |
100 | #if 0 |
233 | for (int i = 1; i < argc; i++) |
101 | if (rxvt_init(argc, argv) == NULL) |
234 | { |
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235 | if (!strcmp (argv [i], "-f") || !strcmp (argv [i], "--fork")) |
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236 | opt_fork = 1; |
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237 | else if (!strcmp (argv [i], "-o") || !strcmp (argv [i], "--opendisplay")) |
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238 | opt_opendisplay = 1; |
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239 | else if (!strcmp (argv [i], "-q") || !strcmp (argv [i], "--quiet")) |
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240 | opt_quiet = 1; |
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241 | else |
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242 | { |
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243 | rxvt_log ("%s: unknown option '%s', aborting.\n", argv [0], argv [i]); |
102 | return EXIT_FAILURE; |
244 | return EXIT_FAILURE; |
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245 | } |
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246 | } |
103 | |
247 | |
104 | dR; |
248 | chdir ("/"); |
105 | rxvt_main_loop(aR); /* main processing loop */ |
249 | |
106 | #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 | ev::ev_loop (0); |
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278 | |
107 | return EXIT_SUCCESS; |
279 | return EXIT_SUCCESS; |
108 | } |
280 | } |
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281 | |