| /* Copyright (C) 1994-2018 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 <hurd.h> |
| #include <hurd/fd.h> |
| #include <hurd/socket.h> |
| #include <string.h> |
| |
| /* Read N bytes into BUF from socket FD. |
| Returns the number read or -1 for errors. */ |
| |
| ssize_t |
| __recv (int fd, void *buf, size_t n, int flags) |
| { |
| error_t err; |
| mach_port_t addrport; |
| char *bufp = buf; |
| mach_msg_type_number_t nread = n; |
| mach_port_t *ports; |
| mach_msg_type_number_t nports = 0; |
| char *cdata = NULL; |
| mach_msg_type_number_t clen = 0; |
| |
| err = HURD_DPORT_USE (fd, __socket_recv (port, &addrport, |
| flags, &bufp, &nread, |
| &ports, &nports, |
| &cdata, &clen, |
| &flags, |
| n)); |
| if (err == MIG_BAD_ID || err == EOPNOTSUPP) |
| /* The file did not grok the socket protocol. */ |
| err = ENOTSOCK; |
| if (err) |
| return __hurd_sockfail (fd, flags, err); |
| |
| __mach_port_deallocate (__mach_task_self (), addrport); |
| __vm_deallocate (__mach_task_self (), (vm_address_t) cdata, clen); |
| |
| if (bufp != buf) |
| { |
| memcpy (buf, bufp, nread); |
| __vm_deallocate (__mach_task_self (), (vm_address_t) bufp, nread); |
| } |
| |
| return nread; |
| } |
| libc_hidden_def (__recv) |
| weak_alias (__recv, recv) |
