190 lines
4.1 KiB
C
190 lines
4.1 KiB
C
/* local.c -- implementation of unix-domain sockets.
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is a part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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#include "config.h"
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#ifdef ENABLE_LOCAL_SOCKETS
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#include <stddef.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <stdio.h>
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#if defined(HAVE_SYS_IOCTL_H)
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#define BSD_COMP /* Get FIONREAD on Solaris2 */
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#include <sys/ioctl.h>
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#endif
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#if defined(HAVE_SYS_FILIO_H) /* Get FIONREAD on Solaris 2.5 */
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#include <sys/filio.h>
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#endif
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#include "local.h"
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const char *
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local_error (void)
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{
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return strerror (errno);
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}
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int
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local_create (int stream)
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{
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return socket (PF_UNIX, stream ? SOCK_STREAM : SOCK_DGRAM, 0);
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}
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int
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local_bind (int fd, const char *addr)
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{
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struct sockaddr_un saddr;
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if (strlen (addr) >= sizeof (saddr.sun_path))
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{
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errno = ENAMETOOLONG;
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return -1;
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}
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strcpy (saddr.sun_path, addr);
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saddr.sun_family = AF_LOCAL;
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return bind (fd, (struct sockaddr *) &saddr, SUN_LEN (&saddr));
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}
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int
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local_listen (int fd, int backlog)
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{
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return listen (fd, backlog);
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}
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int
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local_accept (int fd, char *path)
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{
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int newfd;
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struct sockaddr_un addr;
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socklen_t sz = SUN_LEN(&addr);
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newfd = accept (fd, (struct sockaddr *) &addr, &sz);
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if (newfd >= 0)
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{
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/** sun_path is some crazy statically-sized buffer, and it's
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size is different on different OSes. */
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int n = sizeof (addr.sun_path);
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strncpy (path, addr.sun_path, n);
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path[n] = '\0';
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}
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return newfd;
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}
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int
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local_available (int fd)
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{
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int val;
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if (ioctl (fd, FIONREAD, &val))
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{
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return -1;
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}
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return val;
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}
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int
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local_close (int fd)
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{
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return close (fd);
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}
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int
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local_unlink (char *path)
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{
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return unlink (path);
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}
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int
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local_shutdown_input (int fd)
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{
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return shutdown (fd, 0);
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}
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int
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local_shutdown_output (int fd)
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{
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return shutdown (fd, 1);
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}
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int
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local_connect (int fd, char *path)
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{
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struct sockaddr_un saddr;
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strncpy (saddr.sun_path, path, sizeof (saddr.sun_path));
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saddr.sun_path[sizeof (saddr.sun_path) - 1] = '\0';
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saddr.sun_family = AF_UNIX;
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return connect (fd, (struct sockaddr *) &saddr, SUN_LEN(&saddr));
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}
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int
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local_read (int fd, void *buf, int len)
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{
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int count = -1;
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do
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{
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count = read (fd, buf, len);
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}
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while (count == -1 && errno == EINTR);
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return count;
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}
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int
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local_write (int fd, void *buf, int len)
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{
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int count = -1;
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do
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{
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count = write (fd, buf, len);
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}
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while (count == -1 && errno == EINTR);
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return count;
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}
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#endif /* ENABLE_LOCAL_SOCKETS */
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