diff options
Diffstat (limited to 'REORG.TODO/sysdeps/mach/hurd/sendto.c')
-rw-r--r-- | REORG.TODO/sysdeps/mach/hurd/sendto.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/sendto.c b/REORG.TODO/sysdeps/mach/hurd/sendto.c new file mode 100644 index 0000000000..326999d27b --- /dev/null +++ b/REORG.TODO/sysdeps/mach/hurd/sendto.c @@ -0,0 +1,100 @@ +/* Copyright (C) 1994-2017 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> +#include "hurd/hurdsocket.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) + { + char *name = _hurd_sun_path_dupa (addr, addr_len); + /* 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 (name, 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) |