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On some platforms the native realpath doesn't work with non-existent
files (this is actually specified in some versions of POSIX), however
the sftp spec says its realpath with "canonicalize any given path name".
On those platforms, use realpath from the compat library.
In addition, when compiling with -DFORTIFY_SOURCE, glibc redefines
the realpath symbol to the checked version, so redefine ours to
something else so we pick up the compat version we want.
bz#2428, ok djm@
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Compile-time disable SSH v.1 again
Upstream-ID: 1d4b513a3a06232f02650b73bad25100d1b800af
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Also resort and tidy syscall list. Based on patches by Jakub Jelen
bz#2361; ok dtucker@
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This changes configure.ac to look for '${host}-ar' as set by
AC_CANONICAL_HOST before looking for the unprefixed 'ar'.
Useful when cross-compiling when all your binutils are prefixed.
Patch from moben at exherbo org via astrand at lysator liu se and
bz#2352.
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Compile-time disable SSH protocol 1. You can turn it
back on using the Makefile.inc knob if you need it to talk to ancient
devices.
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fixes builds on systems that use DES_crypt; based on patch
from Roumen Petrov
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Some platforms (older FreeBSD and DragonFly versions) do have
getaddrinfo() but do not have AI_NUMERICINFO. so define it to zero
in those cases.
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Disables and removes dependency on OpenSSL. Many features don't
work and the set of crypto options is greatly restricted. This
will only work on system with native arc4random or /dev/urandom.
Considered highly experimental for now.
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Allows disabling support for SSH protocol 1.
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using memset_s() where possible; improve fallback to indirect bzero
via a volatile pointer to give it more of a chance to avoid being
optimised away.
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just for systems that lack asprintf); check for it always and extend
test to catch more brokenness. Fixes builds on Solaris <= 9
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number; fixes test for unsupported versions
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suggested by Kevin Brott
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has been located; fixes builds agains libressl-portable
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doesn't support it.
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been removed from sshd.c.
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[openbsd-compat/bsd-cygwin_util.h] On Cygwin, determine privilege
separation user at runtime, since it may need to be a domain account.
Patch from Corinna Vinschen.
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vhangup on Linux. It doens't work for non-root users, and for them
it just messes up the tty settings.
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[sshbuf-getput-crypto.c sshbuf.c] compilation and portability fixes
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portability glue to support building without libcrypto
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- (tim) [configure.ac] Fix cut-and-paste error. Patch from Bryan Drewery.
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code for older OpenSSL versions that don't have EVP_MD_CTX_copy_ex.
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[auth2-chall.c authfd.c authfile.c bufaux.c bufec.c canohost.c]
[channels.c cipher-chachapoly.c clientloop.c configure.ac hostfile.c]
[kexc25519.c krl.c monitor.c sandbox-systrace.c session.c]
[sftp-client.c ssh-keygen.c ssh.c sshconnect2.c sshd.c sshlogin.c]
[openbsd-compat/explicit_bzero.c openbsd-compat/openbsd-compat.h]
replace most bzero with explicit_bzero, except a few that cna be memset
ok djm dtucker
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different symbols for 'read' when various compiler flags are
in use, causing atomicio.c comparisons against it to break and
read/write operations to hang; ok dtucker
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in headers that actually exist. patch from Tom G. Christensen;
ok dtucker@
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Tom G. Christensen
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ok dtucker
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RLIMIT_NOFILE pseudo-sandbox on FreeBSD. In some configurations,
libc will attempt to open additional file descriptors for crypto
offload and crash if they cannot be opened.
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against the correct thing.
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sys/capability.h exists and cap_rights_limit is in libc. Fixes
build on FreeBSD9x which provides the header but not the libc
support.
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incompatible with OpenBSD's despite post-dating it by more than a decade.
Declare it as broken, and document FreeBSD's as the same. ok djm@
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platform hardening options: include some long long int arithmatic
to detect missing support functions for -ftrapv in libgcc and
equivalents, actually test linking when -ftrapv is supplied and
set either both -pie/-fPIE or neither. feedback and ok dtucker@
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to build Position Independent Executables on gcc >= 4.x; ok dtucker
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to on platforms where it's known to be reliably detected and off elsewhere.
Works around platforms such as FreeBSD 9.1 where it does not interop with
-ftrapv (it seems to work but fails when trying to link ssh). ok djm@
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optind) are defined in getopt.h already. Unfortunately they are defined as
"declspec(dllimport)" for historical reasons, because the GNU linker didn't
allow auto-import on PE/COFF targets way back when. The problem is the
dllexport attributes collide with the definitions in the various source
files in OpenSSH, which obviousy define the variables without
declspec(dllimport). The least intrusive way to get rid of these warnings
is to disable warnings for GCC compiler attributes when building on Cygwin.
Patch from vinschen at redhat.com.
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stack-protector since that has a separate flag that's been around a while.
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openbsd-compat/bsd-statvfs.h] Implement enough of statvfs on top of statfs
to be useful (and for the regression tests to pass) on platforms that
have statfs and fstatfs. ok djm@
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openbsd-compat/openssl-compat.h] Add compatibility layer for older
openssl versions. ok djm@
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[sandbox-null.c sandbox-rlimit.c sandbox-seccomp-filter.c]
[sandbox-systrace.c ssh-sandbox.h sshd.c] Support preauth sandboxing
using the Capsicum API introduced in FreeBSD 10. Patch by Dag-Erling
Smorgrav, updated by Loganaden Velvindron @ AfriNIC; ok dtucker@
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