bd6137e1e6
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MFC after: 1 week
Sponsored by: The FreeBSD Foundation
(cherry picked from commit b3e858f762)
86 lines
2.0 KiB
Bash
Executable File
86 lines
2.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# Namespace munging inspired by an equivalent hack in NetBSD's tree: add
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# the "Fssh_" prefix to every symbol in libssh which doesn't already have
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# it. This prevents collisions between symbols in libssh and symbols in
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# other libraries or applications which link with libssh, either directly
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# or indirectly (e.g. through PAM loading pam_ssh).
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#
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# $FreeBSD$
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#
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set -e
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eval "unset $(env | sed -nE 's/^(LC_[A-Z]+)=.*$/\1/p')"
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export LANG=C
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error() {
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echo "$@" >&2
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exit 1
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}
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# Locate the source directories
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self=$(realpath ${0})
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srcdir=${self%/*}
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header=${srcdir}/ssh_namespace.h
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top_srcdir=${srcdir%/crypto/openssh}
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libssh_srcdir=${top_srcdir}/secure/lib/libssh
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if [ ! -d ${srcdir} -o \
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! -f ${header} -o \
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! -d ${libssh_srcdir} -o \
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! -f ${libssh_srcdir}/Makefile ] ; then
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error "Where is the libssh Makefile?"
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fi
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ncpu=$(sysctl -n hw.ncpu)
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ssh_make() {
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make -C${libssh_srcdir} -j$((ncpu + 1)) "$@"
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}
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# Clear out, recreate and locate the libssh build directory
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ssh_make cleandir
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ssh_make cleandir
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ssh_make obj
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libssh_builddir=$(realpath $(ssh_make -V.OBJDIR))
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libssh=libprivatessh.a
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# Clear the existing header
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generated="@""generated"
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cat >${header} <<EOF
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/*
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* This file was machine-$generated. Do not edit manually.
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* Run crypto/openssh/freebsd-namespace.sh to regenerate.
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*/
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EOF
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# Build libssh
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ssh_make depend
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ssh_make ${libssh}
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if [ ! -f ${libssh_builddir}/${libssh} ] ; then
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error "Where is ${libssh}?"
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fi
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# Extract symbols
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nm ${libssh_builddir}/${libssh} | awk '
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/^[0-9a-z]+ [Tt] [A-Za-z_][0-9A-Za-z_]*$/ && $3 !~ /^Fssh_/ {
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printf("#define %-39s Fssh_%s\n", $3, $3)
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}
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' | unexpand -a | sort -u >>${header}
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# Clean and rebuild the library
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ssh_make clean
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ssh_make ${libssh}
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# Double-check
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nm ${libssh_builddir}/${libssh} | awk '
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/^[0-9a-z]+ [Tt] [A-Za-z_][0-9A-Za-z_]*$/ && $3 !~ /^Fssh_/ {
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printf("ERROR: %s was not renamed!\n", $3);
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err++;
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}
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END {
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if (err > 0)
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exit(1);
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}
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'
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