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 |
1.28 |
* Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com> |
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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 |
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#include "iom.h" |
42 |
pcg |
1.3 |
|
43 |
pcg |
1.1 |
struct server : rxvt_connection { |
44 |
pcg |
1.10 |
log_callback log_cb; |
45 |
root |
1.22 |
getfd_callback getfd_cb; |
46 |
pcg |
1.10 |
|
47 |
pcg |
1.1 |
void read_cb (io_watcher &w, short revents); io_watcher read_ev; |
48 |
pcg |
1.10 |
void log_msg (const char *msg); |
49 |
root |
1.22 |
int getfd (int remote_fd); |
50 |
pcg |
1.1 |
|
51 |
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server (int fd) |
52 |
pcg |
1.10 |
: read_ev (this, &server::read_cb), |
53 |
root |
1.22 |
log_cb (this, &server::log_msg), |
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getfd_cb (this, &server::getfd) |
55 |
pcg |
1.1 |
{ |
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this->fd = fd; |
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read_ev.start (fd, EVENT_READ); |
58 |
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} |
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60 |
pcg |
1.3 |
void err (const char *format = 0, ...); |
61 |
pcg |
1.1 |
}; |
62 |
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pcg |
1.5 |
struct unix_listener { |
64 |
pcg |
1.1 |
int fd; |
65 |
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void accept_cb (io_watcher &w, short revents); io_watcher accept_ev; |
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pcg |
1.5 |
unix_listener (const char *sockname); |
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pcg |
1.1 |
}; |
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|
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pcg |
1.5 |
unix_listener::unix_listener (const char *sockname) |
72 |
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: accept_ev (this, &unix_listener::accept_cb) |
73 |
pcg |
1.1 |
{ |
74 |
root |
1.30 |
sockaddr_un sa; |
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|
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root |
1.31 |
if (strlen (sockname) >= sizeof(sa.sun_path)) |
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{ |
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fputs ("socket name too long, aborting.\n", stderr); |
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exit (EXIT_FAILURE); |
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} |
81 |
root |
1.30 |
|
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root |
1.24 |
if ((fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) |
83 |
pcg |
1.1 |
{ |
84 |
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perror ("unable to create listening socket"); |
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exit (EXIT_FAILURE); |
86 |
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} |
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88 |
pcg |
1.12 |
fcntl (fd, F_SETFD, FD_CLOEXEC); |
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pcg |
1.1 |
sa.sun_family = AF_UNIX; |
91 |
pcg |
1.5 |
strcpy (sa.sun_path, sockname); |
92 |
pcg |
1.1 |
|
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unlink (rxvt_connection::unix_sockname ()); |
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pcg |
1.5 |
mode_t omask = umask (0077); |
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pcg |
1.1 |
if (bind (fd, (sockaddr *)&sa, sizeof (sa))) |
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{ |
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perror ("unable to bind listening socket"); |
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exit (EXIT_FAILURE); |
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} |
102 |
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103 |
pcg |
1.5 |
umask (omask); |
104 |
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105 |
pcg |
1.1 |
if (listen (fd, 5)) |
106 |
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{ |
107 |
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perror ("unable to listen on socket"); |
108 |
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exit (EXIT_FAILURE); |
109 |
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} |
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111 |
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accept_ev.start (fd, EVENT_READ); |
112 |
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} |
113 |
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114 |
pcg |
1.5 |
void unix_listener::accept_cb (io_watcher &w, short revents) |
115 |
pcg |
1.1 |
{ |
116 |
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int fd2 = accept (fd, 0, 0); |
117 |
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118 |
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if (fd2 >= 0) |
119 |
pcg |
1.12 |
{ |
120 |
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fcntl (fd2, F_SETFD, FD_CLOEXEC); |
121 |
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new server (fd2); |
122 |
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} |
123 |
pcg |
1.1 |
} |
124 |
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125 |
root |
1.22 |
int server::getfd (int remote_fd) |
126 |
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{ |
127 |
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send ("GETFD"); |
128 |
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send (remote_fd); |
129 |
root |
1.27 |
return ptytty::recv_fd (fd); |
130 |
root |
1.22 |
} |
131 |
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132 |
pcg |
1.10 |
void server::log_msg (const char *msg) |
133 |
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{ |
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send ("MSG"), send (msg); |
135 |
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} |
136 |
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137 |
pcg |
1.3 |
void server::err (const char *format, ...) |
138 |
pcg |
1.1 |
{ |
139 |
pcg |
1.3 |
if (format) |
140 |
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{ |
141 |
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char err[1024]; |
142 |
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va_list ap; |
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va_start (ap, format); |
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vsnprintf (err, 1024, format, ap); |
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va_end (ap); |
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148 |
root |
1.32 |
log_msg (err); |
149 |
pcg |
1.3 |
} |
150 |
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151 |
root |
1.32 |
send ("END"), send (0); |
152 |
pcg |
1.1 |
close (fd); |
153 |
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delete this; |
154 |
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} |
155 |
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156 |
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void server::read_cb (io_watcher &w, short revents) |
157 |
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{ |
158 |
pcg |
1.2 |
auto_str tok; |
159 |
pcg |
1.1 |
|
160 |
pcg |
1.2 |
if (recv (tok)) |
161 |
pcg |
1.1 |
{ |
162 |
pcg |
1.2 |
if (!strcmp (tok, "NEW")) |
163 |
pcg |
1.1 |
{ |
164 |
pcg |
1.9 |
stringvec *argv = new stringvec; |
165 |
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stringvec *envv = new stringvec; |
166 |
root |
1.31 |
|
167 |
pcg |
1.2 |
for (;;) |
168 |
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{ |
169 |
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if (!recv (tok)) |
170 |
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return err (); |
171 |
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172 |
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if (!strcmp (tok, "END")) |
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break; |
174 |
pcg |
1.3 |
else if (!strcmp (tok, "ENV") && recv (tok)) |
175 |
root |
1.26 |
envv->push_back (strdup (tok)); |
176 |
pcg |
1.3 |
else if (!strcmp (tok, "CWD") && recv (tok)) |
177 |
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{ |
178 |
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if (chdir (tok)) |
179 |
root |
1.31 |
{ |
180 |
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delete envv; |
181 |
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delete argv; |
182 |
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return err ("unable to change to working directory to '%s', aborting: %s.\n", |
183 |
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(char *)tok, strerror (errno)); |
184 |
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} |
185 |
pcg |
1.3 |
} |
186 |
pcg |
1.2 |
else if (!strcmp (tok, "ARG") && recv (tok)) |
187 |
root |
1.26 |
argv->push_back (strdup (tok)); |
188 |
pcg |
1.2 |
else |
189 |
root |
1.31 |
return err ("protocol error: unexpected NEW token.\n"); |
190 |
pcg |
1.2 |
} |
191 |
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192 |
pcg |
1.9 |
envv->push_back (0); |
193 |
pcg |
1.3 |
|
194 |
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{ |
195 |
pcg |
1.10 |
rxvt_term *term = new rxvt_term; |
196 |
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197 |
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term->log_hook = &log_cb; |
198 |
root |
1.22 |
term->getfd_hook = &getfd_cb; |
199 |
pcg |
1.2 |
|
200 |
pcg |
1.10 |
bool success; |
201 |
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202 |
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try |
203 |
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{ |
204 |
root |
1.26 |
success = term->init (argv, envv); |
205 |
pcg |
1.10 |
} |
206 |
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catch (const class rxvt_failure_exception &e) |
207 |
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{ |
208 |
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success = false; |
209 |
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} |
210 |
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211 |
root |
1.15 |
term->log_hook = 0; |
212 |
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213 |
root |
1.20 |
chdir ("/"); |
214 |
pcg |
1.10 |
|
215 |
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if (!success) |
216 |
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term->destroy (); |
217 |
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218 |
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send ("END"); send (success ? 1 : 0); |
219 |
pcg |
1.3 |
} |
220 |
pcg |
1.1 |
} |
221 |
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else |
222 |
root |
1.31 |
return err ("protocol error: request '%s' unsupported.\n", (char *)tok); |
223 |
pcg |
1.1 |
} |
224 |
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else |
225 |
pcg |
1.2 |
return err (); |
226 |
pcg |
1.1 |
} |
227 |
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|
228 |
root |
1.21 |
int opt_fork, opt_opendisplay, opt_quiet; |
229 |
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|
230 |
pcg |
1.1 |
int |
231 |
pcg |
1.8 |
main (int argc, const char *const *argv) |
232 |
pcg |
1.1 |
{ |
233 |
root |
1.25 |
rxvt_init (); |
234 |
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235 |
root |
1.21 |
for (int i = 1; i < argc; i++) |
236 |
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{ |
237 |
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if (!strcmp (argv [i], "-f") || !strcmp (argv [i], "--fork")) |
238 |
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opt_fork = 1; |
239 |
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else if (!strcmp (argv [i], "-o") || !strcmp (argv [i], "--opendisplay")) |
240 |
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opt_opendisplay = 1; |
241 |
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else if (!strcmp (argv [i], "-q") || !strcmp (argv [i], "--quiet")) |
242 |
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opt_quiet = 1; |
243 |
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else |
244 |
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{ |
245 |
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rxvt_log ("%s: unknown option '%s', aborting.\n", argv [0], argv [i]); |
246 |
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return EXIT_FAILURE; |
247 |
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} |
248 |
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} |
249 |
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|
250 |
root |
1.20 |
chdir ("/"); |
251 |
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|
252 |
root |
1.21 |
if (opt_opendisplay) |
253 |
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displays.get (getenv ("DISPLAY")); // open display and never release it |
254 |
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|
255 |
pcg |
1.5 |
char *sockname = rxvt_connection::unix_sockname (); |
256 |
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unix_listener l (sockname); |
257 |
root |
1.21 |
|
258 |
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if (!opt_quiet) |
259 |
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{ |
260 |
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printf ("rxvt-unicode daemon listening on %s.\n", sockname); |
261 |
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fflush (stdout); |
262 |
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} |
263 |
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|
264 |
pcg |
1.5 |
free (sockname); |
265 |
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|
266 |
root |
1.21 |
if (opt_fork) |
267 |
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{ |
268 |
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pid_t pid = fork (); |
269 |
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|
270 |
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if (pid < 0) |
271 |
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{ |
272 |
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rxvt_log ("unable to fork daemon, aborting.\n"); |
273 |
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return EXIT_FAILURE; |
274 |
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} |
275 |
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else if (pid > 0) |
276 |
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_exit (EXIT_SUCCESS); |
277 |
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} |
278 |
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|
279 |
root |
1.18 |
io_manager::loop (); |
280 |
pcg |
1.1 |
|
281 |
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return EXIT_SUCCESS; |
282 |
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} |
283 |
pcg |
1.7 |
|