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| author | Jo-Philipp Wich <jow@openwrt.org> | 2011-05-18 09:50:06 +0000 |
|---|---|---|
| committer | Jo-Philipp Wich <jow@openwrt.org> | 2011-05-18 09:50:06 +0000 |
| commit | ed8f726dabb07a11215c692b0887a14d8f2b55e4 (patch) | |
| tree | 5f99b523e9f0ada4e9def70c9870e97c5cb379ea | |
| parent | e35822050ba289a4e6db91d9e72c9504f84fee97 (diff) | |
| download | upstream-ed8f726dabb07a11215c692b0887a14d8f2b55e4.tar.gz upstream-ed8f726dabb07a11215c692b0887a14d8f2b55e4.tar.bz2 upstream-ed8f726dabb07a11215c692b0887a14d8f2b55e4.zip | |
ipcalc.sh CIDR notation Hi,
the attached patch makes ipcalc.sh accept IP/Netmask combinations in
CIDR notation. Before you could only do:
# sh ipcalc.sh 192.168.0.0 255.255.255.0 1 10
IP=192.168.0.0
NETMASK=255.255.255.0
BROADCAST=192.168.0.255
NETWORK=192.168.0.0
PREFIX=24
START=192.168.0.1
END=192.168.0.11
with this patch you can also execute it with:
sh ipcalc.sh 192.168.0.0/24 1 10
IP=192.168.0.0
NETMASK=255.255.255.0
BROADCAST=192.168.0.255
NETWORK=192.168.0.0
PREFIX=24
START=192.168.0.1
END=192.168.0.11
The patch is based on #1260 [1], i just changed one line to calculate
the START end END ips right. I wonder why that never got included. If
there is no reason not to do i would like to ask you to commit that
patch, because its a functionality i (and probably others) miss quite often.
Btw, i also fixed 4 useless tabs, that might look a bit strange in the
patch.
Regards, Manuel
SVN-Revision: 26930
| -rw-r--r-- | package/base-files/Makefile | 2 | ||||
| -rwxr-xr-x | package/base-files/files/bin/ipcalc.sh | 21 |
2 files changed, 16 insertions, 7 deletions
diff --git a/package/base-files/Makefile b/package/base-files/Makefile index c10f483270..3d179aed09 100644 --- a/package/base-files/Makefile +++ b/package/base-files/Makefile @@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk include $(INCLUDE_DIR)/kernel.mk PKG_NAME:=base-files -PKG_RELEASE:=69 +PKG_RELEASE:=70 PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/ PKG_BUILD_DEPENDS:=opkg/host diff --git a/package/base-files/files/bin/ipcalc.sh b/package/base-files/files/bin/ipcalc.sh index 9057e85928..d6ef168706 100755 --- a/package/base-files/files/bin/ipcalc.sh +++ b/package/base-files/files/bin/ipcalc.sh @@ -23,15 +23,24 @@ function int2ip(ip,ret,x) { } BEGIN { - ipaddr=ip2int(ARGV[1]) - netmask=ip2int(ARGV[2]) + slpos=index(ARGV[1],"/") + if (slpos == 0) { + ipaddr=ip2int(ARGV[1]) + netmask=ip2int(ARGV[2]) + } else { + ipaddr=ip2int(substr(ARGV[1],0,slpos-1)) + netmask=compl(2**(32-int(substr(ARGV[1],slpos+1)))-1) + ARGV[4]=ARGV[3] + ARGV[3]=ARGV[2] + } + network=and(ipaddr,netmask) broadcast=or(network,compl(netmask)) - + start=or(network,and(ip2int(ARGV[3]),compl(netmask))) limit=network+1 if (start<limit) start=limit - + end=start+ARGV[4] limit=or(network,compl(netmask))-1 if (end>limit) end=limit @@ -41,10 +50,10 @@ BEGIN { print "BROADCAST="int2ip(broadcast) print "NETWORK="int2ip(network) print "PREFIX="32-bitcount(compl(netmask)) - + # range calculations: # ipcalc <ip> <netmask> <start> <num> - + if (ARGC > 3) { print "START="int2ip(start) print "END="int2ip(end) |