| /* Copyright (C) 1994-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <errno.h> |
| #include <sys/socket.h> |
| #include <sys/un.h> |
| #include <hurd.h> |
| #include <hurd/fd.h> |
| #include <hurd/ifsock.h> |
| #include <hurd/socket.h> |
| |
| /* Send N bytes of BUF on socket FD to peer at address ADDR (which is |
| ADDR_LEN bytes long). Returns the number sent, or -1 for errors. */ |
| ssize_t |
| __sendto (int fd, |
| const void *buf, |
| size_t n, |
| int flags, |
| const struct sockaddr_un *addr, |
| socklen_t addr_len) |
| { |
| addr_port_t aport = MACH_PORT_NULL; |
| error_t err; |
| size_t wrote; |
| |
| /* Get an address port for the desired destination address. */ |
| error_t create_address_port (io_t port, |
| const struct sockaddr_un *addr, |
| socklen_t addr_len, |
| addr_port_t *aport) |
| { |
| error_t err_port; |
| |
| if (addr->sun_family == AF_LOCAL) |
| { |
| /* For the local domain, we must look up the name as a file and talk |
| to it with the ifsock protocol. */ |
| file_t file = __file_name_lookup (addr->sun_path, 0, 0); |
| if (file == MACH_PORT_NULL) |
| return errno; |
| err_port = __ifsock_getsockaddr (file, aport); |
| __mach_port_deallocate (__mach_task_self (), file); |
| if (err_port == MIG_BAD_ID || err_port == EOPNOTSUPP) |
| /* The file did not grok the ifsock protocol. */ |
| err_port = ENOTSOCK; |
| } |
| else |
| { |
| err_port = __socket_create_address (port, |
| addr->sun_family, |
| (char *) addr, |
| addr_len, |
| aport); |
| } |
| |
| return err_port; |
| } |
| |
| err = HURD_DPORT_USE (fd, |
| ({ |
| if (addr != NULL) |
| err = create_address_port (port, addr, addr_len, |
| &aport); |
| else |
| err = 0; |
| if (! err) |
| { |
| /* Send the data. */ |
| err = __socket_send (port, aport, |
| flags, buf, n, |
| NULL, |
| MACH_MSG_TYPE_COPY_SEND, 0, |
| NULL, 0, &wrote); |
| } |
| err; |
| })); |
| |
| if (aport != MACH_PORT_NULL) |
| __mach_port_deallocate (__mach_task_self (), aport); |
| |
| return err ? __hurd_sockfail (fd, flags, err) : wrote; |
| } |
| |
| weak_alias (__sendto, sendto) |