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author | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
commit | 28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch) | |
tree | 15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/mach/hurd/socketpair.c | |
download | glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.zip glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.tar.gz glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.tar.bz2 |
initial import
Diffstat (limited to 'sysdeps/mach/hurd/socketpair.c')
-rw-r--r-- | sysdeps/mach/hurd/socketpair.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/socketpair.c b/sysdeps/mach/hurd/socketpair.c new file mode 100644 index 0000000..c4d09c7 --- /dev/null +++ b/sysdeps/mach/hurd/socketpair.c @@ -0,0 +1,93 @@ +/* Copyright (C) 1992, 1994 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 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/socket.h> +#include <hurd/fd.h> +#include <unistd.h> +#include <fcntl.h> + +/* Create two new sockets, of type TYPE in domain DOMAIN and using + protocol PROTOCOL, which are connected to each other, and put file + descriptors for them in FDS[0] and FDS[1]. If PROTOCOL is zero, + one will be chosen automatically. Returns 0 on success, -1 for errors. */ +int +DEFUN(socketpair, (domain, type, protocol, fds), + int domain AND enum __socket_type type AND int protocol AND int fds[2]) +{ + error_t err; + socket_t server, sock1, sock2; + int d1, d2; + + if (fds == NULL) + return __hurd_fail (EINVAL); + + /* Find the domain's socket server. */ + server = _hurd_socket_server (domain, 0); + if (server == MACH_PORT_NULL) + return -1; + + /* Create two sockets and connect them together. */ + + err = __socket_create (server, type, protocol, &sock1); + if (err == MACH_SEND_INVALID_DEST || err == MIG_SERVER_DIED) + { + /* On the first use of the socket server during the operation, + allow for the old server port dying. */ + server = _hurd_socket_server (domain, 1); + if (server == MACH_PORT_NULL) + return -1; + err = __socket_create (server, type, protocol, &sock1); + } + if (err) + return __hurd_fail (err); + if (err = __socket_create (server, type, protocol, &sock2)) + { + __mach_port_deallocate (__mach_task_self (), sock1); + return __hurd_fail (err); + } + if (err = __socket_connect2 (sock1, sock2)) + { + __mach_port_deallocate (__mach_task_self (), sock1); + __mach_port_deallocate (__mach_task_self (), sock2); + return __hurd_fail (err); + } + + /* Put the sockets into file descriptors. */ + + d1 = _hurd_intern_fd (sock1, O_IGNORE_CTTY, 1); + if (d1 < 0) + { + __mach_port_deallocate (__mach_task_self (), sock2); + return -1; + } + d2 = _hurd_intern_fd (sock2, O_IGNORE_CTTY, 1); + if (d2 < 0) + { + err = errno; + (void) close (d1); + return __hurd_fail (err); + } + + fds[0] = d1; + fds[1] = d2; + return 0; +} |