mkioctls revision 1.6 
1#	$Id: mkioctls,v 1.6 1995/06/06 23:45:27 thorpej Exp $
2#
3cpp -dM ${1+"$@"} | awk '
4BEGIN {
5	print "#include <sys/param.h>"
6	print "#include <sys/socket.h>"
7	print "#include <sys/socketvar.h>"
8	print "#include <net/route.h>"
9	print "#include <net/if.h>"
10	print "#include <netinet/in.h>"
11	print "#include <netinet/ip_mroute.h>"
12	print "#include <sys/termios.h>"
13	print "#define COMPAT_43"
14	print "#include <sys/ioctl.h>"
15	print ""
16	print "char *"
17	print "ioctlname(val)"
18	print "\tlong val;"
19	print "{"
20	print ""
21}
22
23/^#[ 	]*define[ 	]*(TIO|FIO|SIO|OSIO)[A-Z]*[ 	]*_IO/ {
24	
25	# find where the name starts
26	for (i = 1; i <= NF; i++)
27		if ($i ~ /define/)
28			break;
29	++i;
30	# 
31	printf("\tif (val == %s)\n\t\treturn (\"%s\");\n", $i, $i);
32
33}
34END {
35	print "\n\treturn (NULL);"
36	print "}"
37}
38'
39