1 |
root |
1.29 |
/*----------------------------------------------------------------------* |
2 |
pcg |
1.14 |
* File: rxvtd.C |
3 |
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*----------------------------------------------------------------------* |
4 |
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* |
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* All portions of code are copyright by their respective author/s. |
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root |
1.43 |
* Copyright (c) 2003-2007 Marc Lehmann <pcg@goof.com> |
7 |
pcg |
1.14 |
* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*----------------------------------------------------------------------*/ |
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pcg |
1.9 |
#include "../config.h" |
24 |
pcg |
1.1 |
#include <cstdio> |
25 |
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#include <cstdlib> |
26 |
pcg |
1.3 |
#include <cstdarg> |
27 |
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#include <cstring> |
28 |
pcg |
1.1 |
|
29 |
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#include <unistd.h> |
30 |
pcg |
1.12 |
#include <fcntl.h> |
31 |
pcg |
1.5 |
#include <sys/types.h> |
32 |
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#include <sys/stat.h> |
33 |
pcg |
1.1 |
#include <sys/socket.h> |
34 |
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#include <sys/un.h> |
35 |
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|
36 |
pcg |
1.3 |
#include <cerrno> |
37 |
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38 |
root |
1.27 |
#include "rxvt.h" |
39 |
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#include "rxvtdaemon.h" |
40 |
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#include "libptytty.h" |
41 |
pcg |
1.3 |
|
42 |
pcg |
1.1 |
struct server : rxvt_connection { |
43 |
pcg |
1.10 |
log_callback log_cb; |
44 |
root |
1.22 |
getfd_callback getfd_cb; |
45 |
pcg |
1.10 |
|
46 |
root |
1.34 |
void read_cb (ev::io &w, int revents); ev::io read_ev; |
47 |
pcg |
1.10 |
void log_msg (const char *msg); |
48 |
root |
1.22 |
int getfd (int remote_fd); |
49 |
pcg |
1.1 |
|
50 |
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server (int fd) |
51 |
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{ |
52 |
root |
1.41 |
read_ev.set <server, &server::read_cb> (this); |
53 |
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log_cb.set <server, &server::log_msg> (this); |
54 |
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getfd_cb.set<server, &server::getfd> (this); |
55 |
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|
56 |
root |
1.37 |
this->fd = fd; |
57 |
root |
1.35 |
fcntl (fd, F_SETFD, FD_CLOEXEC); |
58 |
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fcntl (fd, F_SETFL, 0); |
59 |
root |
1.34 |
read_ev.start (fd, ev::READ); |
60 |
pcg |
1.1 |
} |
61 |
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|
62 |
pcg |
1.3 |
void err (const char *format = 0, ...); |
63 |
pcg |
1.1 |
}; |
64 |
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65 |
pcg |
1.5 |
struct unix_listener { |
66 |
pcg |
1.1 |
int fd; |
67 |
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|
68 |
root |
1.34 |
void accept_cb (ev::io &w, int revents); ev::io accept_ev; |
69 |
pcg |
1.1 |
|
70 |
pcg |
1.5 |
unix_listener (const char *sockname); |
71 |
pcg |
1.1 |
}; |
72 |
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|
73 |
pcg |
1.5 |
unix_listener::unix_listener (const char *sockname) |
74 |
pcg |
1.1 |
{ |
75 |
root |
1.41 |
accept_ev.set<unix_listener, &unix_listener::accept_cb> (this); |
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|
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root |
1.30 |
sockaddr_un sa; |
78 |
ayin |
1.33 |
|
79 |
root |
1.31 |
if (strlen (sockname) >= sizeof(sa.sun_path)) |
80 |
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{ |
81 |
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fputs ("socket name too long, aborting.\n", stderr); |
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exit (EXIT_FAILURE); |
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} |
84 |
root |
1.30 |
|
85 |
root |
1.24 |
if ((fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) |
86 |
pcg |
1.1 |
{ |
87 |
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perror ("unable to create listening socket"); |
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exit (EXIT_FAILURE); |
89 |
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} |
90 |
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pcg |
1.12 |
fcntl (fd, F_SETFD, FD_CLOEXEC); |
92 |
root |
1.35 |
fcntl (fd, F_SETFL, O_NONBLOCK); |
93 |
pcg |
1.12 |
|
94 |
pcg |
1.1 |
sa.sun_family = AF_UNIX; |
95 |
pcg |
1.5 |
strcpy (sa.sun_path, sockname); |
96 |
pcg |
1.1 |
|
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unlink (rxvt_connection::unix_sockname ()); |
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99 |
pcg |
1.5 |
mode_t omask = umask (0077); |
100 |
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101 |
pcg |
1.1 |
if (bind (fd, (sockaddr *)&sa, sizeof (sa))) |
102 |
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{ |
103 |
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perror ("unable to bind listening socket"); |
104 |
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exit (EXIT_FAILURE); |
105 |
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} |
106 |
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107 |
pcg |
1.5 |
umask (omask); |
108 |
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109 |
pcg |
1.1 |
if (listen (fd, 5)) |
110 |
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{ |
111 |
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perror ("unable to listen on socket"); |
112 |
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exit (EXIT_FAILURE); |
113 |
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} |
114 |
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115 |
root |
1.34 |
accept_ev.start (fd, ev::READ); |
116 |
pcg |
1.1 |
} |
117 |
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118 |
root |
1.34 |
void unix_listener::accept_cb (ev::io &w, int revents) |
119 |
pcg |
1.1 |
{ |
120 |
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int fd2 = accept (fd, 0, 0); |
121 |
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122 |
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if (fd2 >= 0) |
123 |
root |
1.35 |
new server (fd2); |
124 |
pcg |
1.1 |
} |
125 |
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126 |
root |
1.22 |
int server::getfd (int remote_fd) |
127 |
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{ |
128 |
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send ("GETFD"); |
129 |
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send (remote_fd); |
130 |
root |
1.27 |
return ptytty::recv_fd (fd); |
131 |
root |
1.22 |
} |
132 |
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133 |
pcg |
1.10 |
void server::log_msg (const char *msg) |
134 |
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{ |
135 |
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send ("MSG"), send (msg); |
136 |
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} |
137 |
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138 |
pcg |
1.3 |
void server::err (const char *format, ...) |
139 |
pcg |
1.1 |
{ |
140 |
pcg |
1.3 |
if (format) |
141 |
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{ |
142 |
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char err[1024]; |
143 |
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va_list ap; |
145 |
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va_start (ap, format); |
146 |
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vsnprintf (err, 1024, format, ap); |
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va_end (ap); |
148 |
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149 |
root |
1.32 |
log_msg (err); |
150 |
pcg |
1.3 |
} |
151 |
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152 |
root |
1.32 |
send ("END"), send (0); |
153 |
pcg |
1.1 |
close (fd); |
154 |
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delete this; |
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} |
156 |
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157 |
root |
1.34 |
void server::read_cb (ev::io &w, int revents) |
158 |
pcg |
1.1 |
{ |
159 |
pcg |
1.2 |
auto_str tok; |
160 |
pcg |
1.1 |
|
161 |
pcg |
1.2 |
if (recv (tok)) |
162 |
pcg |
1.1 |
{ |
163 |
pcg |
1.2 |
if (!strcmp (tok, "NEW")) |
164 |
pcg |
1.1 |
{ |
165 |
pcg |
1.9 |
stringvec *argv = new stringvec; |
166 |
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stringvec *envv = new stringvec; |
167 |
ayin |
1.33 |
|
168 |
pcg |
1.2 |
for (;;) |
169 |
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{ |
170 |
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if (!recv (tok)) |
171 |
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return err (); |
172 |
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173 |
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if (!strcmp (tok, "END")) |
174 |
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break; |
175 |
pcg |
1.3 |
else if (!strcmp (tok, "ENV") && recv (tok)) |
176 |
root |
1.26 |
envv->push_back (strdup (tok)); |
177 |
pcg |
1.2 |
else if (!strcmp (tok, "ARG") && recv (tok)) |
178 |
root |
1.26 |
argv->push_back (strdup (tok)); |
179 |
pcg |
1.2 |
else |
180 |
root |
1.31 |
return err ("protocol error: unexpected NEW token.\n"); |
181 |
pcg |
1.2 |
} |
182 |
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183 |
pcg |
1.9 |
envv->push_back (0); |
184 |
pcg |
1.3 |
|
185 |
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{ |
186 |
pcg |
1.10 |
rxvt_term *term = new rxvt_term; |
187 |
ayin |
1.33 |
|
188 |
pcg |
1.10 |
term->log_hook = &log_cb; |
189 |
root |
1.22 |
term->getfd_hook = &getfd_cb; |
190 |
pcg |
1.2 |
|
191 |
root |
1.42 |
bool success = true; |
192 |
ayin |
1.33 |
|
193 |
pcg |
1.10 |
try |
194 |
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{ |
195 |
root |
1.42 |
term->init (argv, envv); |
196 |
pcg |
1.10 |
} |
197 |
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catch (const class rxvt_failure_exception &e) |
198 |
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{ |
199 |
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success = false; |
200 |
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} |
201 |
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202 |
root |
1.15 |
term->log_hook = 0; |
203 |
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204 |
root |
1.46 |
chdir ("/"); // init might change to different working directory |
205 |
pcg |
1.10 |
|
206 |
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if (!success) |
207 |
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term->destroy (); |
208 |
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209 |
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send ("END"); send (success ? 1 : 0); |
210 |
pcg |
1.3 |
} |
211 |
pcg |
1.1 |
} |
212 |
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else |
213 |
root |
1.31 |
return err ("protocol error: request '%s' unsupported.\n", (char *)tok); |
214 |
pcg |
1.1 |
} |
215 |
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else |
216 |
pcg |
1.2 |
return err (); |
217 |
pcg |
1.1 |
} |
218 |
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219 |
root |
1.21 |
int opt_fork, opt_opendisplay, opt_quiet; |
220 |
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|
221 |
pcg |
1.1 |
int |
222 |
pcg |
1.8 |
main (int argc, const char *const *argv) |
223 |
pcg |
1.1 |
{ |
224 |
root |
1.25 |
rxvt_init (); |
225 |
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|
226 |
root |
1.21 |
for (int i = 1; i < argc; i++) |
227 |
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{ |
228 |
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if (!strcmp (argv [i], "-f") || !strcmp (argv [i], "--fork")) |
229 |
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opt_fork = 1; |
230 |
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else if (!strcmp (argv [i], "-o") || !strcmp (argv [i], "--opendisplay")) |
231 |
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opt_opendisplay = 1; |
232 |
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else if (!strcmp (argv [i], "-q") || !strcmp (argv [i], "--quiet")) |
233 |
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opt_quiet = 1; |
234 |
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else |
235 |
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{ |
236 |
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rxvt_log ("%s: unknown option '%s', aborting.\n", argv [0], argv [i]); |
237 |
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return EXIT_FAILURE; |
238 |
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} |
239 |
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} |
240 |
ayin |
1.33 |
|
241 |
root |
1.45 |
// optionally open display and never release it. |
242 |
root |
1.21 |
if (opt_opendisplay) |
243 |
root |
1.45 |
if (const char *dpy = getenv ("DISPLAY")) |
244 |
|
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displays.get (dpy ? dpy : ":0"); // move string logic into rxvt_display maybe? |
245 |
root |
1.21 |
|
246 |
pcg |
1.5 |
char *sockname = rxvt_connection::unix_sockname (); |
247 |
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unix_listener l (sockname); |
248 |
root |
1.21 |
|
249 |
root |
1.44 |
chdir ("/"); |
250 |
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|
251 |
root |
1.21 |
if (!opt_quiet) |
252 |
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{ |
253 |
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printf ("rxvt-unicode daemon listening on %s.\n", sockname); |
254 |
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fflush (stdout); |
255 |
|
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} |
256 |
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|
257 |
pcg |
1.5 |
free (sockname); |
258 |
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|
259 |
root |
1.21 |
if (opt_fork) |
260 |
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{ |
261 |
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pid_t pid = fork (); |
262 |
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|
263 |
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if (pid < 0) |
264 |
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{ |
265 |
|
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rxvt_log ("unable to fork daemon, aborting.\n"); |
266 |
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return EXIT_FAILURE; |
267 |
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} |
268 |
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else if (pid > 0) |
269 |
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_exit (EXIT_SUCCESS); |
270 |
root |
1.38 |
|
271 |
root |
1.39 |
ev_default_fork (); |
272 |
root |
1.21 |
} |
273 |
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|
274 |
root |
1.39 |
ev_loop (0); |
275 |
pcg |
1.1 |
|
276 |
|
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return EXIT_SUCCESS; |
277 |
|
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} |
278 |
pcg |
1.7 |
|