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/cvs/rxvt-unicode/src/rxvtc.C
Revision: 1.37
Committed: Mon Oct 6 11:14:49 2014 UTC (9 years, 8 months ago) by sf-exg
Content type: text/plain
Branch: MAIN
CVS Tags: rxvt-unicode-rel-9_26, rxvt-unicode-rel-9_25, rxvt-unicode-rel-9_22, rxvt-unicode-rel-9_21
Changes since 1.36: +6 -0 lines
Log Message:
Add -k option to urxvtc for killing the daemon process.

File Contents

# Content
1 /*----------------------------------------------------------------------*
2 * File: rxvtc.C
3 *----------------------------------------------------------------------*
4 *
5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2003-2006 Marc Lehmann <schmorp@schmorp.de>
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 3 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 *----------------------------------------------------------------------*/
22
23 #include "../config.h"
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <signal.h>
28
29 #include <unistd.h>
30 #include <sys/socket.h>
31 #include <sys/un.h>
32
33 #include "rxvtdaemon.h"
34 #include "libptytty.h"
35
36 #define STATUS_SUCCESS 0
37 #define STATUS_FAILURE 1
38 #define STATUS_CONNECTION_FAILED 2
39
40 struct client : rxvt_connection
41 {
42 client ();
43 };
44
45 client::client ()
46 {
47 sockaddr_un sa;
48 char *sockname = rxvt_connection::unix_sockname ();
49
50 if (strlen (sockname) >= sizeof (sa.sun_path))
51 {
52 fputs ("socket name too long, aborting.\n", stderr);
53 exit (STATUS_FAILURE);
54 }
55
56 if ((fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0)
57 {
58 perror ("unable to create communications socket");
59 exit (STATUS_FAILURE);
60 }
61
62 sa.sun_family = AF_UNIX;
63 strcpy (sa.sun_path, sockname);
64 free (sockname);
65
66 if (connect (fd, (sockaddr *)&sa, sizeof (sa)))
67 {
68 perror ("unable to connect to the rxvt-unicode daemon");
69 exit (STATUS_CONNECTION_FAILED);
70 }
71 }
72
73 extern char **environ;
74
75 int
76 main (int argc, const char *const *argv)
77 {
78 // instead of getcwd we could opendir (".") and pass the fd for fchdir *g*
79 char cwd[PATH_MAX];
80
81 if (!getcwd (cwd, sizeof (cwd)))
82 {
83 perror ("unable to determine current working directory");
84 exit (STATUS_FAILURE);
85 }
86
87 client c;
88
89 {
90 sigset_t ss;
91
92 sigemptyset (&ss);
93 sigaddset (&ss, SIGHUP);
94 sigaddset (&ss, SIGPIPE);
95 sigprocmask (SIG_BLOCK, &ss, 0);
96 }
97
98 if (argc >= 2 && !strcmp (argv[1], "-k"))
99 {
100 c.send ("QUIT");
101 return 0;
102 }
103
104 c.send ("NEW");
105
106 for (char **var = environ; *var; var++)
107 c.send ("ENV"), c.send (*var);
108
109 const char *base = strrchr (argv[0], '/');
110 base = base ? base + 1 : argv[0];
111 c.send ("ARG"), c.send (strcmp (base, RXVTNAME "c") ? base : RXVTNAME);
112
113 c.send ("ARG"), c.send ("-cd");
114 c.send ("ARG"), c.send (cwd);
115
116 for (int i = 1; i < argc; i++)
117 c.send ("ARG"), c.send (argv[i]);
118
119 c.send ("END");
120
121 auto_str tok;
122 int cint;
123
124 for (;;)
125 if (!c.recv (tok))
126 {
127 fprintf (stderr, "protocol error: unexpected eof from server.\n");
128 break;
129 }
130 else if (!strcmp (tok, "MSG") && c.recv (tok))
131 fprintf (stderr, "%s", (const char *)tok);
132 else if (!strcmp (tok, "GETFD") && c.recv (cint))
133 {
134 if (!ptytty::send_fd (c.fd, cint))
135 {
136 fprintf (stderr, "unable to send fd %d: ", cint); perror (0);
137 exit (STATUS_FAILURE);
138 }
139 }
140 else if (!strcmp (tok, "END"))
141 {
142 int success;
143
144 if (c.recv (success))
145 exit (success ? STATUS_SUCCESS : STATUS_FAILURE);
146 }
147 else
148 {
149 fprintf (stderr, "protocol error: received unsupported token '%s'.\n", (const char *)tok);
150 break;
151 }
152
153 return STATUS_FAILURE;
154 }
155