udhcpc: use readlink rather than realpath

The realpath utility requires all paths exist when canonicalizing
symlinks.  If /etc/resolv.conf points to a tmpfs, then it might
not exist initially.  Use `readlink -f` so that we follow all
symlinks that are available.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/udhcp/simple.script b/examples/udhcp/simple.script
index 0397e506c..2a917eb6c 100755
--- a/examples/udhcp/simple.script
+++ b/examples/udhcp/simple.script
@@ -37,7 +37,7 @@ case "$1" in
                 echo "Recreating $RESOLV_CONF"
                 # If the file is a symlink somewhere (like /etc/resolv.conf
                 # pointing to /run/resolv.conf), make sure things work.
-                realconf=$(realpath "$RESOLV_CONF" 2>/dev/null || echo "$RESOLV_CONF")
+                realconf=$(readlink -f "$RESOLV_CONF" 2>/dev/null || echo "$RESOLV_CONF")
                 tmpfile="$realconf-$$"
                 > "$tmpfile"
                 [ -n "$domain" ] && echo "search $domain" >> "$tmpfile"