Remove portability support for mmap

We no longer need to wrap/replace mmap for portability now that
pre-auth compression has been removed from OpenSSH.

3 files changed, 1 insertions, 88 deletions

diff --git a/openbsd-compat/Makefile.in b/openbsd-compat/Makefile.in
index 7f7368aa3..eedbd9eec 100644
--- a/openbsd-compat/Makefile.in
+++ b/openbsd-compat/Makefile.in
@@ -18,7 +18,7 @@ LDFLAGS=-L. @LDFLAGS@
 
 OPENBSD=base64.o basename.o bcrypt_pbkdf.o bindresvport.o blowfish.o daemon.o dirname.o fmt_scaled.o getcwd.o getgrouplist.o getopt_long.o getrrsetbyname.o glob.o inet_aton.o inet_ntoa.o inet_ntop.o mktemp.o pwcache.o readpassphrase.o reallocarray.o realpath.o rresvport.o setenv.o setproctitle.o sha1.o sha2.o rmd160.o md5.o sigact.o strlcat.o strlcpy.o strmode.o strnlen.o strptime.o strsep.o strtonum.o strtoll.o strtoul.o strtoull.o timingsafe_bcmp.o vis.o blowfish.o bcrypt_pbkdf.o explicit_bzero.o
 
-COMPAT=arc4random.o bsd-asprintf.o bsd-closefrom.o bsd-cray.o bsd-cygwin_util.o bsd-getpeereid.o getrrsetbyname-ldns.o bsd-err.o bsd-misc.o bsd-nextstep.o bsd-openpty.o bsd-poll.o bsd-setres_id.o bsd-snprintf.o bsd-statvfs.o bsd-waitpid.o fake-rfc2553.o openssl-compat.o xmmap.o xcrypt.o kludge-fd_set.o
+COMPAT=arc4random.o bsd-asprintf.o bsd-closefrom.o bsd-cray.o bsd-cygwin_util.o bsd-getpeereid.o getrrsetbyname-ldns.o bsd-err.o bsd-misc.o bsd-nextstep.o bsd-openpty.o bsd-poll.o bsd-setres_id.o bsd-snprintf.o bsd-statvfs.o bsd-waitpid.o fake-rfc2553.o openssl-compat.o xcrypt.o kludge-fd_set.o
 
 PORTS=port-aix.o port-irix.o port-linux.o port-solaris.o port-tun.o port-uw.o
 
diff --git a/openbsd-compat/openbsd-compat.h b/openbsd-compat/openbsd-compat.h
index 0de07e9c3..2e56203e1 100644
--- a/openbsd-compat/openbsd-compat.h
+++ b/openbsd-compat/openbsd-compat.h
@@ -297,7 +297,6 @@ int	bcrypt_pbkdf(const char *, size_t, const u_int8_t *, size_t,
 void explicit_bzero(void *p, size_t n);
 #endif
 
-void *xmmap(size_t size);
 char *xcrypt(const char *password, const char *salt);
 char *shadow_pw(struct passwd *pw);
 
diff --git a/openbsd-compat/xmmap.c b/openbsd-compat/xmmap.c
deleted file mode 100644
index 262a79095..000000000
--- a/openbsd-compat/xmmap.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Copyright (c) 2002 Tim Rice.  All rights reserved.
- * MAP_FAILED code by Solar Designer.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "includes.h"
-
-#include <sys/types.h>
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-#include <sys/stat.h>
-
-#ifdef HAVE_FCNTL_H
-# include <fcntl.h>
-#endif
-#include <errno.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "log.h"
-
-void *
-xmmap(size_t size)
-{
-#ifdef HAVE_MMAP
-        void *address;
-
-# ifdef MAP_ANON
-        address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_ANON|MAP_SHARED,
-            -1, (off_t)0);
-# else
-        address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_SHARED,
-            open("/dev/zero", O_RDWR), (off_t)0);
-# endif
-
-#define MM_SWAP_TEMPLATE "/var/run/sshd.mm.XXXXXXXX"
-        if (address == (void *)MAP_FAILED) {
-                char tmpname[sizeof(MM_SWAP_TEMPLATE)] = MM_SWAP_TEMPLATE;
-                int tmpfd;
-                mode_t old_umask;
-
-                old_umask = umask(0177);
-                tmpfd = mkstemp(tmpname);
-                umask(old_umask);
-                if (tmpfd == -1)
-                        fatal("mkstemp(\"%s\"): %s",
-                            MM_SWAP_TEMPLATE, strerror(errno));
-                unlink(tmpname);
-                if (ftruncate(tmpfd, size) != 0)
-                        fatal("%s: ftruncate: %s", __func__, strerror(errno));
-                address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_SHARED,
-                    tmpfd, (off_t)0);
-                close(tmpfd);
-        }
-
-        return (address);
-#else
-        fatal("%s: UsePrivilegeSeparation=yes and Compression=yes not supported",
-            __func__);
-#endif /* HAVE_MMAP */
-
-}
-