#vim: set syn=sh:
#Maintainer: JRD <jrd@enialis.net>

pkgname=fake-uname
pkgver=0.1
pkgrel=1cp
arch=noarch
sourcetemplate=http://enialis.net/~jrd/salix/$pkgname/$pkgver-$pkrel/
docs=("readme" "install" "copying" "changelog" "authors" "news" "todo")
options=('noextract' 'nostrip')

slackdesc=\
(
#|-----handy-ruler------------------------------------------------------|
"$pkgname (hack to fake the kernel version)"
"This could be usefull to build a driver or anything relative to the"
"kernel, where the currently running kernel is not of the same version"
"you build the driver to."
"Of course the kernel headers (or sources) for the fakly kernel should"
"be present in order for this to work."
"Just run 'fake-uname-activate kernel_ver' to use it."
)


build() {
  cd $startdir/pkg
  mkdir sbin
  cd sbin
  cat <<'EOF' > fake-uname
#!/bin/sh
export FAKEVER=2.6.31
if [ "$1" = "-r" ]; then
  echo $FAKEVER
elif [ "$1" = "-a" ]; then
  /bin/uname -a | sed "s/2\.6[0-9.]*\(-[^ ]*\)\?/$FAKEVER/"
else
  /bin/uname $1
fi
EOF
  cat <<'EOF' > fake-uname-activate
#!/bin/sh
if [ "$1" = "" ]; then
  echo 'fake-uname-activate FAKE_KERNEL_VERSION'
  exit 1
else
  FAKEVER=$1
  if [ ! -h /sbin/uname ]; then
    sed -i -e "s/\(export FAKEVER=\).*/\1$FAKEVER/" /sbin/fake-uname
    (cd /sbin && ln -s fake-uname uname)
    echo 'please relaunch this shell to take effect'
  else
    echo 'fake-uname already active'
    exit 1
  fi
fi
EOF
  cat <<'EOF' > fake-uname-disactivate
#!/bin/sh
if [ -h /sbin/uname ]; then
  rm -f /sbin/uname
  echo 'please relaunch this shell to take effect'
else
  echo 'fake-uname not active'
  exit 1
fi
EOF
  chmod u+x fake-uname fake-uname-activate fake-uname-disactivate
}