1 | #include <stdint.h> |
1 | /*--------------------------------*-C-*---------------------------------* |
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2 | * File: rxvtdaemon.C |
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3 | *----------------------------------------------------------------------* |
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4 | * |
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5 | * All portions of code are copyright by their respective author/s. |
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6 | * Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com> |
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7 | * |
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8 | * This program is free software; you can redistribute it and/or modify |
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9 | * it under the terms of the GNU General Public License as published by |
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10 | * the Free Software Foundation; either version 2 of the License, or |
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11 | * (at your option) any later version. |
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12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program; if not, write to the Free Software |
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20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 | *----------------------------------------------------------------------*/ |
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22 | |
2 | #include <cstdlib> |
23 | #include <cstdlib> |
3 | #include <cstring> |
24 | #include <cstring> |
4 | #include <cstdio> |
25 | #include <cstdio> |
5 | |
26 | |
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27 | #include <inttypes.h> |
6 | #include <unistd.h> |
28 | #include <unistd.h> |
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29 | #include <errno.h> |
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30 | #include <sys/types.h> |
7 | #include <sys/utsname.h> |
31 | #include <sys/utsname.h> |
8 | #include <limits.h> |
32 | #include <limits.h> |
9 | |
33 | |
10 | #include "rxvtdaemon.h" |
34 | #include "rxvtdaemon.h" |
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35 | |
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36 | // works around linux kernel bug, returns EAGAIN on a blocking socket |
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37 | static ssize_t |
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38 | read_ (int fd, void *buf, size_t count) |
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39 | { |
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40 | int ret; |
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41 | |
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42 | do |
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43 | ret = read (fd, buf, count); |
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44 | while (ret < 0 && errno == EAGAIN); |
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45 | |
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46 | return ret; |
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47 | } |
11 | |
48 | |
12 | char *rxvt_connection::unix_sockname () |
49 | char *rxvt_connection::unix_sockname () |
13 | { |
50 | { |
14 | char name[PATH_MAX]; |
51 | char name[PATH_MAX]; |
15 | char *path = getenv ("RXVT_SOCKET"); |
52 | char *path = getenv ("RXVT_SOCKET"); |
… | |
… | |
18 | { |
55 | { |
19 | struct utsname u; |
56 | struct utsname u; |
20 | uname (&u); |
57 | uname (&u); |
21 | |
58 | |
22 | path = getenv ("HOME"); |
59 | path = getenv ("HOME"); |
23 | snprintf (name, PATH_MAX, "%s/.rxvt-%s", |
60 | snprintf (name, PATH_MAX, "%s/.rxvt-unicode-%s", |
24 | path ? path : "/tmp", |
61 | path ? path : "/tmp", |
25 | u.nodename); |
62 | u.nodename); |
26 | |
63 | |
27 | path = name; |
64 | path = name; |
28 | } |
65 | } |
… | |
… | |
48 | bool rxvt_connection::recv (auto_str &data, int *len) |
85 | bool rxvt_connection::recv (auto_str &data, int *len) |
49 | { |
86 | { |
50 | uint8_t s[2]; |
87 | uint8_t s[2]; |
51 | int l; |
88 | int l; |
52 | |
89 | |
53 | if (read (fd, s, 2) != 2) |
90 | if (read_ (fd, s, 2) != 2) |
54 | return false; |
91 | return false; |
55 | |
92 | |
56 | l = (s[0] << 8) + s[1]; |
93 | l = (s[0] << 8) + s[1]; |
57 | if (l > 4096) |
94 | if (l > 4096) |
58 | return false; |
95 | return false; |
… | |
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63 | data = new char[l + 1]; |
100 | data = new char[l + 1]; |
64 | |
101 | |
65 | if (!data) |
102 | if (!data) |
66 | return false; |
103 | return false; |
67 | |
104 | |
68 | if (read (fd, data, l) != l) |
105 | if (read_ (fd, data, l) != l) |
69 | return false; |
106 | return false; |
70 | |
107 | |
71 | data[l] = 0; |
108 | data[l] = 0; |
72 | |
109 | |
73 | return true; |
110 | return true; |
… | |
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84 | |
121 | |
85 | bool rxvt_connection::recv (int &data) |
122 | bool rxvt_connection::recv (int &data) |
86 | { |
123 | { |
87 | uint8_t s[4]; |
124 | uint8_t s[4]; |
88 | |
125 | |
89 | if (read (fd, s, 4) != 4) |
126 | if (read_ (fd, s, 4) != 4) |
90 | return false; |
127 | return false; |
91 | |
128 | |
92 | 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]; |
93 | |
130 | |
94 | return true; |
131 | return true; |