2 * Copyright (c) 2010 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Alex Hornung <ahornung@gmail.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include <sys/types.h>
35 #include <sys/device.h>
38 #include <sys/socket.h>
54 #include <libprop/proplib.h>
59 send_xml(int s, char *xml)
66 r = send(s, &sz, sizeof(sz), 0);
71 while (r < (ssize_t)sz) {
72 n = send(s, xml+r, sz-r, 0);
82 read_xml(int s, char **buf)
90 n = recv(s, &sz, sizeof(sz), MSG_WAITALL);
91 if ((n <= 0) || (sz > 12*1024*1024)) /* Arbitrary limit */
96 while (r < (ssize_t)sz) {
97 n = recv(s, xml+r, sz-r, MSG_WAITALL);
110 unblock_descriptor(int s)
114 flags = fcntl(s, F_GETFL, 0);
115 ret = fcntl(s, F_SETFL, flags | O_NONBLOCK);
120 block_descriptor(int s)
124 flags = fcntl(s, F_GETFL, 0);
125 ret = fcntl(s, F_SETFL, flags & ~O_NONBLOCK);
130 init_local_server(const char *sockfile, int socktype, int nonblock)
134 struct sockaddr_un un_addr;
136 if ((s = socket(AF_UNIX, socktype, 0)) < 0)
139 memset(&un_addr, 0, sizeof(un_addr));
140 un_addr.sun_family = AF_UNIX;
141 strncpy(un_addr.sun_path, sockfile, SOCKFILE_NAMELEN);
142 un_addr.sun_path[SOCKFILE_NAMELEN - 1] = '\0';
145 * DO NOT change `un_addr.sun_path' to `sockfile' here,
146 * since `sockfile' may have been truncated by above strncpy(3).
148 unlink(un_addr.sun_path);
150 if (nonblock && unblock_descriptor(s) < 0) {
155 msk = umask(S_IXUSR|S_IXGRP|S_IXOTH);
156 if (bind(s, (struct sockaddr *)&un_addr, sizeof(un_addr)) < 0) {
160 umask(msk); /* Restore the original mask */
162 if (socktype == SOCK_STREAM && listen(s, LOCAL_BACKLOG) < 0) {