Make cmdline_param work and conform to rc.d layout

- Rename cmdline_param to kernel_cmdline
- Move to /etc/rc.d/functions.d where it belongs

1 files changed, 20 insertions, 0 deletions

diff --git a/configs/syslinux-iso/overlay/etc/rc.d/functions.d/archiso b/configs/syslinux-iso/overlay/etc/rc.d/functions.d/archiso
new file mode 100644
index 0000000..02b41cf
--- /dev/null
+++ b/configs/syslinux-iso/overlay/etc/rc.d/functions.d/archiso
@@ -0,0 +1,20 @@
+# vim: set ft=sh:
+
+# kernel_cmdline <param>
+# Looks for a parameter on the kernel's boot-time command line.
+#
+# returns: 0 if param was found. Also prints its value if it was a K=V param.
+#          1 if it was not
+#
+kernel_cmdline ()
+{
+    for param in $(/bin/cat /proc/cmdline); do
+        case "${param}" in
+            $1=*) echo "${param##*=}"; return 0 ;;
+            $1) return 0 ;;
+            *) continue ;;
+        esac
+    done
+
+    return 1
+}