diff options
Diffstat (limited to 'sysdeps/mach/hurd/recv.c')
-rw-r--r-- | sysdeps/mach/hurd/recv.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/recv.c b/sysdeps/mach/hurd/recv.c new file mode 100644 index 0000000000..7d06919c4b --- /dev/null +++ b/sysdeps/mach/hurd/recv.c @@ -0,0 +1,60 @@ +/* Copyright (C) 1994 Fremach_msg_type_number_t 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#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. */ +int +DEFUN(recv, (fd, buf, n, flags), + int fd AND PTR buf AND size_t n AND 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; + char *cdata = NULL; + mach_msg_type_number_t clen = 0; + + if (err = HURD_DPORT_USE (fd, __socket_recv (port, &addrport, + flags, &bufp, &nread, + &ports, &nports, + &cdata, &clen, + &flags, + n))) + return __hurd_dfail (fd, 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; +} |