2 * fwd - OpenWrt firewall daemon - unix domain socket parts
4 * Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
6 * The fwd program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation.
10 * The fwd program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 * See the GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with the fwd program. If not, see http://www.gnu.org/licenses/.
24 int fwd_ipc_listen(void)
27 struct sockaddr_un addr;
29 if( (fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0 )
30 fwd_fatal("Cannot create AF_UNIX socket: %m");
32 memset(&addr, 0, sizeof(struct sockaddr_un));
33 strcpy(addr.sun_path, FWD_SOCKET_PATH);
34 addr.sun_family = AF_UNIX;
36 unlink(FWD_SOCKET_PATH);
38 if( bind(fd, (struct sockaddr *)&addr, sizeof(struct sockaddr_un)) < 0 )
39 fwd_fatal("Cannot bind AF_UNIX socket: %m");
41 if( listen(fd, 1) < 0 )
42 fwd_fatal("Cannot listen on AF_UNIX socket: %m");
44 //fcntl(fd, F_SETFL, O_NONBLOCK);
49 int fwd_ipc_accept(int fd)
51 return accept(fd, NULL, NULL);
54 int fwd_ipc_connect(void)
57 struct sockaddr_un addr;
59 if( (fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0 )
60 fwd_fatal("Cannot create AF_UNIX socket: %m");
62 memset(&addr, 0, sizeof(struct sockaddr_un));
63 strcpy(addr.sun_path, FWD_SOCKET_PATH);
64 addr.sun_family = AF_UNIX;
66 if( connect(fd, (struct sockaddr *)&addr, sizeof(struct sockaddr_un)) < 0 )
67 fwd_fatal("Cannot connect AF_UNIX socket: %m");
69 fcntl(fd, F_SETFL, O_NONBLOCK);
74 int fwd_ipc_recvmsg(int fd, void *buf, int len)
76 return recv(fd, buf, len, 0);
79 int fwd_ipc_sendmsg(int fd, void *buf, int len)
81 return send(fd, buf, len, 0);
84 void fwd_ipc_shutdown(int fd)
86 shutdown(fd, SHUT_RDWR);
90 int fwd_ipc_sendtype(int fd, enum fwd_ipc_msgtype type)
92 struct fwd_ipc_msg msg;
94 memset(&msg, 0, sizeof(struct fwd_ipc_msg));
97 return fwd_ipc_sendmsg(fd, &msg, sizeof(struct fwd_ipc_msg));