base-files: ipcalc.sh: support bit length as netmask parameter

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39100 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/base-files/files/bin/ipcalc.sh b/package/base-files/files/bin/ipcalc.sh
index 27a52d6..5d5eac3 100755 (executable)
--- a/package/base-files/files/bin/ipcalc.sh
+++ b/package/base-files/files/bin/ipcalc.sh
@@ -31,7 +31,11 @@ BEGIN {
        slpos=index(ARGV[1],"/")
        if (slpos == 0) {
                ipaddr=ip2int(ARGV[1])
        slpos=index(ARGV[1],"/")
        if (slpos == 0) {
                ipaddr=ip2int(ARGV[1])

-               netmask=ip2int(ARGV[2])
+               dotpos=index(ARGV[2],".")
+               if (dotpos == 0)
+                       netmask=compl32(2**(32-int(ARGV[2]))-1)
+               else
+                       netmask=ip2int(ARGV[2])

        } else {
                ipaddr=ip2int(substr(ARGV[1],0,slpos-1))
                netmask=compl32(2**(32-int(substr(ARGV[1],slpos+1)))-1)
        } else {
                ipaddr=ip2int(substr(ARGV[1],0,slpos-1))
                netmask=compl32(2**(32-int(substr(ARGV[1],slpos+1)))-1)