kernel: add md5sum of kernel
[openwrt.git] / package / base-files / files / bin / ipcalc.sh
index 318980e..9057e85 100755 (executable)
@@ -1,6 +1,27 @@
 #!/bin/sh
 
 #!/bin/sh
 
-awk -f /usr/lib/common.awk -f - $* <<EOF
+awk -f - $* <<EOF
+function bitcount(c) {
+       c=and(rshift(c, 1),0x55555555)+and(c,0x55555555)
+       c=and(rshift(c, 2),0x33333333)+and(c,0x33333333)
+       c=and(rshift(c, 4),0x0f0f0f0f)+and(c,0x0f0f0f0f)
+       c=and(rshift(c, 8),0x00ff00ff)+and(c,0x00ff00ff)
+       c=and(rshift(c,16),0x0000ffff)+and(c,0x0000ffff)
+       return c
+}
+
+function ip2int(ip) {
+       for (ret=0,n=split(ip,a,"\."),x=1;x<=n;x++) ret=or(lshift(ret,8),a[x]) 
+       return ret
+}
+
+function int2ip(ip,ret,x) {
+       ret=and(ip,255)
+       ip=rshift(ip,8)
+       for(;x<3;ret=and(ip,255)"."ret,ip=rshift(ip,8),x++);
+       return ret
+}
+
 BEGIN {
        ipaddr=ip2int(ARGV[1])
        netmask=ip2int(ARGV[2])
 BEGIN {
        ipaddr=ip2int(ARGV[1])
        netmask=ip2int(ARGV[2])
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