modscrip

ftam等标准协议服务器和客户端的源代码。

#!/bin/sh
rm -f modscripout
edb2dmi < showdraft >tmpdraft
edb2dmi <tmpedb >tmpedb2

(edb2dmi <tmpedb; echo "/-E/-N/-D/"; edb2dmi < showdraft) | awk '
BEGIN	{
	part = 1
	add[","] = 2
	del[","] = 1
}

{
	x = $0
	if (x == "/-E/-N/-D/") {
		part = 2
		next
		}
	if (part == 1) {
		key = substr(x,1,1)
		if (key == "!")
			del[substr(x,2)] = 1
		else if(key == "+") {
			n = index(x,"=")
			del[substr(x,2,n-2)] = 1
			add[substr(x,2)] = 1
       		}
		else
			add[x] = 1
	}
	else {
		if (del[x] == 1)
			next
		n = index(x,"=")
		if (del[substr(x,1,n-1)] == 1)
			next
		if (add[x] == 1)
			add[x] = 2
		print x 
	}
}

END {
	for (x in add)
		if (add[x] == 1)
			print x
} ' | dmi2edb > newdraft

#rm -f tmpdraft