[PATCH 02/50] Add a simple getarg function.

If we ever need to get more than one kernel command line argument, this
function will pay for itself.  It relies on a feature of the way bash
handles string comparisons in [[ ]] statements -- the RHS is matched
according to globbing rules, and is not a straight string match.

diff --git a/init b/init
index eb8998d..b5b0b1b 100755 (executable)
--- a/init
+++ b/init
@@ -14,6 +14,12 @@ emergency_shell()
     bash < /dev/console
 }
 
+getarg() {
+    for o in $(< /proc/cmdline); do
+       [[ $o == $1 ]] && { echo $o; break; }
+    done
+}
+
 echo "Starting initrd..."
 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
 export TERM=linux