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Comparing rxvt-unicode/src/rxvtd.C (file contents):
Revision 1.5 by pcg, Thu Nov 27 10:12:10 2003 UTC vs.
Revision 1.46 by root, Sun Jun 15 13:54:15 2008 UTC

1#include "rxvtlib.h" 1/*----------------------------------------------------------------------*
2#include "rxvtdaemon.h" 2 * File: rxvtd.C
3#include "iom.h" 3 *----------------------------------------------------------------------*
4 *
5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2003-2007 Marc Lehmann <pcg@goof.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *----------------------------------------------------------------------*/
4 22
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>
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
18extern char **environ; 38#include "rxvt.h"
39#include "rxvtdaemon.h"
40#include "libptytty.h"
19 41
20struct server : rxvt_connection { 42struct server : rxvt_connection {
43 log_callback log_cb;
44 getfd_callback getfd_cb;
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;
47 void log_msg (const char *msg);
48 int getfd (int remote_fd);
22 49
23 server (int fd) 50 server (int fd)
24 : read_ev (this, &server::read_cb)
25 { 51 {
52 read_ev.set <server, &server::read_cb> (this);
53 log_cb.set <server, &server::log_msg> (this);
54 getfd_cb.set<server, &server::getfd> (this);
55
26 this->fd = fd; 56 this->fd = fd;
57 fcntl (fd, F_SETFD, FD_CLOEXEC);
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
33struct unix_listener { 65struct 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
41unix_listener::unix_listener (const char *sockname) 73unix_listener::unix_listener (const char *sockname)
42: accept_ev (this, &unix_listener::accept_cb)
43{ 74{
75 accept_ev.set<unix_listener, &unix_listener::accept_cb> (this);
76
77 sockaddr_un sa;
78
79 if (strlen (sockname) >= sizeof(sa.sun_path))
80 {
81 fputs ("socket name too long, aborting.\n", stderr);
82 exit (EXIT_FAILURE);
83 }
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);
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
76void unix_listener::accept_cb (io_watcher &w, short revents) 118void 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);
124}
125
126int server::getfd (int remote_fd)
127{
128 send ("GETFD");
129 send (remote_fd);
130 return ptytty::recv_fd (fd);
131}
132
133void server::log_msg (const char *msg)
134{
135 send ("MSG"), send (msg);
82} 136}
83 137
84void server::err (const char *format, ...) 138void 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
149 log_msg (err);
150 }
151
95 send ("ERR"), send (err); 152 send ("END"), send (0);
96 }
97
98 close (fd); 153 close (fd);
99 delete this; 154 delete this;
100} 155}
101 156
102void server::read_cb (io_watcher &w, short revents) 157void 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))
123 {
124 if (chdir (tok))
125 err ("unable to change to working directory to '%s': %s",
126 (char *)tok, strerror (errno));
127 }
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 ();
139 187
140 rxvt_init (argv.size (), argv.begin ()); 188 term->log_hook = &log_cb;
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
193 try
194 {
195 term->init (argv, envv);
196 }
197 catch (const class rxvt_failure_exception &e)
198 {
199 success = false;
200 }
201
202 term->log_hook = 0;
203
204 chdir ("/"); // init might change to different working directory
205
206 if (!success)
207 term->destroy ();
208
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
219int opt_fork, opt_opendisplay, opt_quiet;
220
153int 221int
154main(int argc, const char *const *argv) 222main (int argc, const char *const *argv)
155{ 223{
156 {
157 sigset_t ss;
158
159 sigaddset (&ss, SIGHUP);
160 sigaddset (&ss, SIGPIPE);
161 sigprocmask (SIG_BLOCK, &ss, 0);
162 }
163
164 rxvt_init_signals (); 224 rxvt_init ();
225
226 for (int i = 1; i < argc; i++)
227 {
228 if (!strcmp (argv [i], "-f") || !strcmp (argv [i], "--fork"))
229 opt_fork = 1;
230 else if (!strcmp (argv [i], "-o") || !strcmp (argv [i], "--opendisplay"))
231 opt_opendisplay = 1;
232 else if (!strcmp (argv [i], "-q") || !strcmp (argv [i], "--quiet"))
233 opt_quiet = 1;
234 else
235 {
236 rxvt_log ("%s: unknown option '%s', aborting.\n", argv [0], argv [i]);
237 return EXIT_FAILURE;
238 }
239 }
240
241 // optionally open display and never release it.
242 if (opt_opendisplay)
243 if (const char *dpy = getenv ("DISPLAY"))
244 displays.get (dpy ? dpy : ":0"); // move string logic into rxvt_display maybe?
165 245
166 char *sockname = rxvt_connection::unix_sockname (); 246 char *sockname = rxvt_connection::unix_sockname ();
167 unix_listener l (sockname); 247 unix_listener l (sockname);
248
249 chdir ("/");
250
251 if (!opt_quiet)
252 {
168 printf ("rxvtd listening on %s.\n", sockname); 253 printf ("rxvt-unicode daemon listening on %s.\n", sockname);
254 fflush (stdout);
255 }
256
169 free (sockname); 257 free (sockname);
170 258
171 iom.loop (); 259 if (opt_fork)
260 {
261 pid_t pid = fork ();
172 262
173#if 0 263 if (pid < 0)
174 if (rxvt_init(argc, argv) == NULL) 264 {
265 rxvt_log ("unable to fork daemon, aborting.\n");
175 return EXIT_FAILURE; 266 return EXIT_FAILURE;
267 }
268 else if (pid > 0)
269 _exit (EXIT_SUCCESS);
176 270
177 dR; 271 ev_default_fork ();
178 rxvt_main_loop(aR); /* main processing loop */ 272 }
179#endif 273
274 ev_loop (0);
275
180 return EXIT_SUCCESS; 276 return EXIT_SUCCESS;
181} 277}
278

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