Currently our small custom dhclient-script only handles the 'domain-name'
option, which can just list a single domain, not the 'domain-search'
option, which can handle several.  Correct it to handle both.

We also weren't emptying the resolv.conf file before we began, which
could lead to surprising contents after multiple DHCP transactions.

Signed-off-by: David Gibson <david(a)gibson.dropbear.id.au>
---
 test/passt.mbuto | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/test/passt.mbuto b/test/passt.mbuto
index b33c0a8..c515a0c 100755
--- a/test/passt.mbuto
+++ b/test/passt.mbuto
@@ -34,13 +34,13 @@ set >> \$LOG
 
 [ -n "\${new_ip_address}" ]          && ip addr add \${new_ip_address}/\${new_subnet_mask} dev \${interface}
 [ -n "\${new_routers}" ]             && for r in \${new_routers}; do ip route add default via \${r} dev \${interface}; done
+:> /etc/resolv.conf
 [ -n "\${new_domain_name_servers}" ] && for d in \${new_domain_name_servers}; do echo "nameserver \${d}" >> /etc/resolv.conf; done
-[ -n "\${new_domain_name}" ]         && (printf "search"; for d in \${new_domain_name}; do printf " %s" "\${d}"; done; printf "\n") >> /etc/resolv.conf
-
+[ -n "\${new_domain_name}" ]         && echo "search \${new_domain_name}" >> /etc/resolf.conf
+[ -n "\${new_domain_search}" ]       && (printf "search"; for d in \${new_domain_search}; do printf " %s" "\${d}"; done; printf "\n") >> /etc/resolv.conf
 [ -n "\${new_ip6_address}" ]         && ip addr add \${new_ip6_address}/\${new_ip6_prefixlen} dev \${interface}
 [ -n "\${new_dhcp6_name_servers}" ]  && for d in \${new_dhcp6_name_servers}; do echo "nameserver \${d}%\${interface}" >> /etc/resolv.conf; done
 [ -n "\${new_dhcp6_domain_search}" ] && (printf "search"; for d in \${new_dhcp6_domain_search}; do printf " %s" "\${d}"; done; printf "\n") >> /etc/resolv.conf
-
 [ -n "\${new_host_name}" ]           && hostname "\${new_host_name}"
 exit 0
 EOF
-- 
2.36.1