diff options
Diffstat (limited to 'openbsd-compat')
-rw-r--r-- | openbsd-compat/Makefile.in | 4 | ||||
-rw-r--r-- | openbsd-compat/xmmap.c | 65 |
2 files changed, 67 insertions, 2 deletions
diff --git a/openbsd-compat/Makefile.in b/openbsd-compat/Makefile.in index 3e09cfefe..c365ae18f 100644 --- a/openbsd-compat/Makefile.in +++ b/openbsd-compat/Makefile.in | |||
@@ -1,4 +1,4 @@ | |||
1 | # $Id: Makefile.in,v 1.21 2002/02/19 20:27:57 mouring Exp $ | 1 | # $Id: Makefile.in,v 1.22 2002/07/14 20:36:51 tim Exp $ |
2 | 2 | ||
3 | sysconfdir=@sysconfdir@ | 3 | sysconfdir=@sysconfdir@ |
4 | piddir=@piddir@ | 4 | piddir=@piddir@ |
@@ -18,7 +18,7 @@ LDFLAGS=-L. @LDFLAGS@ | |||
18 | 18 | ||
19 | OPENBSD=base64.o bindresvport.o daemon.o dirname.o getcwd.o getgrouplist.o getopt.o glob.o inet_aton.o inet_ntoa.o inet_ntop.o mktemp.o readpassphrase.o realpath.o rresvport.o setenv.o setproctitle.o sigact.o strlcat.o strlcpy.o strmode.o strsep.o | 19 | OPENBSD=base64.o bindresvport.o daemon.o dirname.o getcwd.o getgrouplist.o getopt.o glob.o inet_aton.o inet_ntoa.o inet_ntop.o mktemp.o readpassphrase.o realpath.o rresvport.o setenv.o setproctitle.o sigact.o strlcat.o strlcpy.o strmode.o strsep.o |
20 | 20 | ||
21 | COMPAT=bsd-arc4random.o bsd-cray.o bsd-cygwin_util.o bsd-misc.o bsd-nextstep.o bsd-snprintf.o bsd-waitpid.o fake-getaddrinfo.o fake-getnameinfo.o | 21 | COMPAT=bsd-arc4random.o bsd-cray.o bsd-cygwin_util.o bsd-misc.o bsd-nextstep.o bsd-snprintf.o bsd-waitpid.o fake-getaddrinfo.o fake-getnameinfo.o xmmap.o |
22 | 22 | ||
23 | PORTS=port-irix.o port-aix.o | 23 | PORTS=port-irix.o port-aix.o |
24 | 24 | ||
diff --git a/openbsd-compat/xmmap.c b/openbsd-compat/xmmap.c new file mode 100644 index 000000000..a6b7d3bdf --- /dev/null +++ b/openbsd-compat/xmmap.c | |||
@@ -0,0 +1,65 @@ | |||
1 | /* | ||
2 | * Redistribution and use in source and binary forms, with or without | ||
3 | * modification, are permitted provided that the following conditions | ||
4 | * are met: | ||
5 | * 1. Redistributions of source code must retain the above copyright | ||
6 | * notice, this list of conditions and the following disclaimer. | ||
7 | * 2. Redistributions in binary form must reproduce the above copyright | ||
8 | * notice, this list of conditions and the following disclaimer in the | ||
9 | * documentation and/or other materials provided with the distribution. | ||
10 | * | ||
11 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | ||
12 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | ||
13 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | ||
14 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
15 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
16 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
17 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
18 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
19 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||
20 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
21 | */ | ||
22 | |||
23 | #include "includes.h" | ||
24 | |||
25 | #ifdef HAVE_SYS_MMAN_H | ||
26 | #include <sys/mman.h> | ||
27 | #endif | ||
28 | |||
29 | void *xmmap(size_t size) | ||
30 | { | ||
31 | void *address; | ||
32 | |||
33 | #ifdef HAVE_MMAP | ||
34 | # ifdef MAP_ANON | ||
35 | address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_ANON|MAP_SHARED, | ||
36 | -1, 0); | ||
37 | # else | ||
38 | address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_SHARED, | ||
39 | open("/dev/zero", O_RDWR), 0); | ||
40 | # endif | ||
41 | |||
42 | #define MM_SWAP_TEMPLATE "/var/run/sshd.mm.XXXXXXXX" | ||
43 | if (address == MAP_FAILED) { | ||
44 | char tmpname[sizeof(MM_SWAP_TEMPLATE)] = MM_SWAP_TEMPLATE; | ||
45 | int tmpfd; | ||
46 | |||
47 | tmpfd = mkstemp(tmpname); | ||
48 | if (tmpfd == -1) | ||
49 | fatal("mkstemp(\"%s\"): %s", | ||
50 | MM_SWAP_TEMPLATE, strerror(errno)); | ||
51 | unlink(tmpname); | ||
52 | ftruncate(tmpfd, size); | ||
53 | address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_SHARED, | ||
54 | tmpfd, 0); | ||
55 | close(tmpfd); | ||
56 | } | ||
57 | |||
58 | return (address); | ||
59 | #else | ||
60 | fatal("%s: UsePrivilegeSeparation=yes and Compression=yes not supported", | ||
61 | __func__); | ||
62 | #endif /* HAVE_MMAP */ | ||
63 | |||
64 | } | ||
65 | |||