1 | #include <unistd.h> |
1 | /*--------------------------------*-C-*---------------------------------* |
2 | #include <stdint.h> |
2 | * File: rxvtdaemon.C |
|
|
3 | *----------------------------------------------------------------------* |
|
|
4 | * |
|
|
5 | * All portions of code are copyright by their respective author/s. |
|
|
6 | * Copyright (c) 2003-2004 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 | *----------------------------------------------------------------------*/ |
|
|
22 | |
3 | #include <cstdlib> |
23 | #include <cstdlib> |
4 | #include <cstring> |
24 | #include <cstring> |
|
|
25 | #include <cstdio> |
|
|
26 | |
|
|
27 | #include <inttypes.h> |
|
|
28 | #include <unistd.h> |
|
|
29 | #include <errno.h> |
|
|
30 | #include <sys/types.h> |
|
|
31 | #include <sys/utsname.h> |
|
|
32 | #include <limits.h> |
5 | |
33 | |
6 | #include "rxvtdaemon.h" |
34 | #include "rxvtdaemon.h" |
7 | |
35 | |
8 | const char *rxvt_connection::unix_sockname () |
36 | // works around linux kernel bug, returns EAGAIN on a blocking socket |
|
|
37 | static ssize_t |
|
|
38 | read_ (int fd, void *buf, size_t count) |
9 | { |
39 | { |
10 | return "/tmp/rxvtd~"; |
40 | int ret; |
|
|
41 | |
|
|
42 | do |
|
|
43 | ret = read (fd, buf, count); |
|
|
44 | while (ret < 0 && errno == EAGAIN); |
|
|
45 | |
|
|
46 | return ret; |
|
|
47 | } |
|
|
48 | |
|
|
49 | char *rxvt_connection::unix_sockname () |
|
|
50 | { |
|
|
51 | char name[PATH_MAX]; |
|
|
52 | char *path = getenv ("RXVT_SOCKET"); |
|
|
53 | |
|
|
54 | if (!path) |
|
|
55 | { |
|
|
56 | struct utsname u; |
|
|
57 | uname (&u); |
|
|
58 | |
|
|
59 | path = getenv ("HOME"); |
|
|
60 | snprintf (name, PATH_MAX, "%s/.rxvt-unicode-%s", |
|
|
61 | path ? path : "/tmp", |
|
|
62 | u.nodename); |
|
|
63 | |
|
|
64 | path = name; |
|
|
65 | } |
|
|
66 | |
|
|
67 | return strdup (path); |
11 | } |
68 | } |
12 | |
69 | |
13 | void rxvt_connection::send (const char *data, int len) |
70 | void rxvt_connection::send (const char *data, int len) |
14 | { |
71 | { |
15 | uint8_t s[2]; |
72 | uint8_t s[2]; |
… | |
… | |
23 | void rxvt_connection::send (const char *data) |
80 | void rxvt_connection::send (const char *data) |
24 | { |
81 | { |
25 | send (data, strlen (data)); |
82 | send (data, strlen (data)); |
26 | } |
83 | } |
27 | |
84 | |
28 | bool rxvt_connection::recv (char *&data, int *len) |
85 | bool rxvt_connection::recv (auto_str &data, int *len) |
29 | { |
86 | { |
30 | uint8_t s[2]; |
87 | uint8_t s[2]; |
31 | int l; |
88 | int l; |
32 | |
89 | |
33 | if (read (fd, s, 2) != 2) |
90 | if (read_ (fd, s, 2) != 2) |
34 | return false; |
91 | return false; |
35 | |
92 | |
36 | l = (s[0] << 8) + s[1]; |
93 | l = (s[0] << 8) + s[1]; |
37 | if (l > 4096) |
94 | if (l > 4096) |
38 | return false; |
95 | return false; |
… | |
… | |
43 | data = new char[l + 1]; |
100 | data = new char[l + 1]; |
44 | |
101 | |
45 | if (!data) |
102 | if (!data) |
46 | return false; |
103 | return false; |
47 | |
104 | |
48 | if (read (fd, data, l) != l) |
105 | if (read_ (fd, data, l) != l) |
49 | return false; |
106 | return false; |
50 | |
107 | |
51 | data[l] = 0; |
108 | data[l] = 0; |
52 | |
109 | |
53 | return true; |
110 | return true; |
54 | } |
111 | } |
55 | |
112 | |
56 | bool rxvt_connection::recv (token &data) |
|
|
57 | { |
|
|
58 | char *d; |
|
|
59 | int l; |
|
|
60 | |
|
|
61 | if (!recv (d, &l)) |
|
|
62 | return false; |
|
|
63 | |
|
|
64 | if (l < sizeof (token) - 1) |
|
|
65 | strcpy (data, d); |
|
|
66 | |
|
|
67 | delete [] d; |
|
|
68 | |
|
|
69 | return l < sizeof (token) - 1; |
|
|
70 | } |
|
|
71 | |
|
|
72 | void rxvt_connection::send (int data) |
113 | void rxvt_connection::send (int data) |
73 | { |
114 | { |
74 | uint8_t s[4]; |
115 | uint8_t s[4]; |
75 | |
116 | |
76 | s[0] = data >> 24; s[1] = data >> 16; s[0] = data >> 8; s[1] = data; |
117 | s[0] = data >> 24; s[1] = data >> 16; s[2] = data >> 8; s[3] = data; |
77 | |
118 | |
78 | write (fd, s, 4); |
119 | write (fd, s, 4); |
79 | } |
120 | } |
80 | |
121 | |
81 | bool rxvt_connection::recv (int &data) |
122 | bool rxvt_connection::recv (int &data) |
82 | { |
123 | { |
83 | uint8_t s[4]; |
124 | uint8_t s[4]; |
84 | |
125 | |
85 | if (read (fd, s, 4) != 4) |
126 | if (read_ (fd, s, 4) != 4) |
86 | return false; |
127 | return false; |
87 | |
128 | |
88 | data = (((((s[0] << 8) | s[1]) << 8) | s[2]) << 8) | s[3]; |
129 | data = (((((s[0] << 8) | s[1]) << 8) | s[2]) << 8) | s[3]; |
89 | |
130 | |
90 | return true; |
131 | return true; |