2 * Copyright (c) 2002 Tim Rice. All rights reserved.
3 * MAP_FAILED code by Solar Designer.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 /* $Id: xmmap.c,v 1.3 2003/06/02 02:25:27 tim Exp $ */
30 #ifdef HAVE_SYS_MMAN_H
36 void *xmmap(size_t size)
42 address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_ANON|MAP_SHARED,
45 address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_SHARED,
46 open("/dev/zero", O_RDWR), 0);
49 #define MM_SWAP_TEMPLATE "/var/run/sshd.mm.XXXXXXXX"
50 if (address == MAP_FAILED) {
51 char tmpname[sizeof(MM_SWAP_TEMPLATE)] = MM_SWAP_TEMPLATE;
54 tmpfd = mkstemp(tmpname);
56 fatal("mkstemp(\"%s\"): %s",
57 MM_SWAP_TEMPLATE, strerror(errno));
59 ftruncate(tmpfd, size);
60 address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_SHARED,
67 fatal("%s: UsePrivilegeSeparation=yes and Compression=yes not supported",
69 #endif /* HAVE_MMAP */