diff options
Diffstat (limited to 'libc/sysdeps/mach/hurd/recv.c')
-rw-r--r-- | libc/sysdeps/mach/hurd/recv.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/libc/sysdeps/mach/hurd/recv.c b/libc/sysdeps/mach/hurd/recv.c new file mode 100644 index 000000000..b001729d1 --- /dev/null +++ b/libc/sysdeps/mach/hurd/recv.c @@ -0,0 +1,64 @@ +/* Copyright (C) 1994,1997,2001,2005 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#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 (fd, buf, n, flags) + 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; + 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; +} +weak_alias (__recv, recv) |