freebsd-skq/crypto/openssh/freebsd-namespace.sh
des 271dcc6a42 Upgrade to OpenSSH 7.6p1. This will be followed shortly by 7.7p1.
This completely removes client-side support for the SSH 1 protocol,
which was already disabled in 12 but is still enabled in 11.  For that
reason, we will not be able to merge 7.6p1 or newer back to 11.
2018-05-08 23:13:11 +00:00

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#!/bin/sh
#
# Namespace munging inspired by an equivalent hack in NetBSD's tree: add
# the "Fssh_" prefix to every symbol in libssh which doesn't already have
# it. This prevents collisions between symbols in libssh and symbols in
# other libraries or applications which link with libssh, either directly
# or indirectly (e.g. through PAM loading pam_ssh).
#
# $FreeBSD$
#
set -e
eval "unset $(env | sed -nE 's/^(LC_[A-Z]+)=.*$/\1/p')"
export LANG=C
error() {
echo "$@" >&2
exit 1
}
# Locate the source directories
self=$(realpath ${0})
srcdir=${self%/*}
header=${srcdir}/ssh_namespace.h
top_srcdir=${srcdir%/crypto/openssh}
libssh_srcdir=${top_srcdir}/secure/lib/libssh
if [ ! -d ${srcdir} -o \
! -f ${header} -o \
! -d ${libssh_srcdir} -o \
! -f ${libssh_srcdir}/Makefile ] ; then
error "Where is the libssh Makefile?"
fi
ncpu=$(sysctl -n hw.ncpu)
ssh_make() {
make -C${libssh_srcdir} -j$((ncpu + 1)) "$@"
}
# Clear out, recreate and locate the libssh build directory
ssh_make cleandir
ssh_make cleandir
ssh_make obj
libssh_builddir=$(realpath $(ssh_make -V.OBJDIR))
libssh=libprivatessh.a
# Clear the existing header
cat >${header} <<EOF
/*
* This file was machine-generated. Do not edit manually.
* Run crypto/openssh/freebsd-namespace.sh to regenerate.
*/
EOF
# Build libssh
ssh_make depend
ssh_make ${libssh}
if [ ! -f ${libssh_builddir}/${libssh} ] ; then
error "Where is ${libssh}?"
fi
# Extract symbols
nm ${libssh_builddir}/${libssh} | awk '
/^[0-9a-z]+ [Tt] [A-Za-z_][0-9A-Za-z_]*$/ && $3 !~ /^Fssh_/ {
printf("#define %-39s Fssh_%s\n", $3, $3)
}
' | unexpand -a | sort -u >>${header}
# Clean and rebuild the library
ssh_make clean
ssh_make ${libssh}
# Double-check
nm ${libssh_builddir}/${libssh} | awk '
/^[0-9a-z]+ [Tt] [A-Za-z_][0-9A-Za-z_]*$/ && $3 !~ /^Fssh_/ {
printf("ERROR: %s was not renamed!\n", $3);
err++;
}
END {
if (err > 0)
exit(1);
}
'