1 files changed, 106 insertions, 0 deletions
diff --git a/lib/libsysdecode/mkioctls b/lib/libsysdecode/mkioctls
new file mode 100644
index 000000000000..e48001e1f6a5
--- /dev/null
+++ b/lib/libsysdecode/mkioctls
@@ -0,0 +1,106 @@
+#!/bin/sh
+#
+
+set -e
+
+if [ $# -ne 1 ]; then
+	echo "usage: sh $0 include-dir"
+	exit 1
+fi
+
+includedir="$1"
+
+LC_ALL=C; export LC_ALL
+
+# Build a list of headers that have ioctls in them.
+# XXX should we use an ANSI cpp?
+ioctl_includes=$(
+	cd $includedir
+	set -e
+	# if /bin/sh is bash this will avoid further errors due to missing commands
+	if set -o | grep -q pipefail; then
+		set -o pipefail
+	fi
+
+	filter='tee'
+	if [ "${MK_PF}" = "no" ]; then
+		filter='egrep -v (net/pfvar|net/if_pfsync)\.h'
+	fi
+	# find -s would avoid the need to invoke sort but it is non-portable
+	find -L ./* -type f -name '*.h' | \
+		LC_ALL=C sort | \
+		$filter | \
+		xargs egrep -l \
+'^#[ 	]*define[ 	]+[A-Za-z_][A-Za-z0-9_]*[ 	]+_IO[^a-z0-9_]' |
+		awk '{printf("#include <%s>\\n", $1)}'
+)
+
+if [ -z "$ioctl_includes" ]; then
+	echo "Failed to build list of ioctl headers"
+	exit 1
+fi
+
+awk -v x="$ioctl_includes" 'BEGIN {print x}' |
+	$CPP -nostdinc -I$includedir -dM -DCOMPAT_43TTY - |
+	awk -v ioctl_includes="$ioctl_includes" '
+BEGIN {
+	print "/* XXX obnoxious prerequisites. */"
+	print "#define COMPAT_43"
+	print "#define COMPAT_43TTY"
+	print "#include <sys/param.h>"
+	print "#include <sys/devicestat.h>"
+	print "#include <sys/disklabel.h>"
+	print "#include <sys/mman.h>"
+	print "#include <sys/socket.h>"
+	print "#include <sys/time.h>"
+	print "#include <sys/tty.h>"
+	print "#include <bsm/audit.h>"
+	print "#include <net/ethernet.h>"
+	print "#include <net/if.h>"
+	print "#ifdef PF"
+	print "#include <net/pfvar.h>"
+	print "#include <net/if_pfsync.h>"
+	print "#endif"
+	print "#include <net/route.h>"
+	print "#include <netinet/in.h>"
+	print "#include <netinet/ip_mroute.h>"
+	print "#include <netinet6/in6_var.h>"
+	print "#include <netinet6/nd6.h>"
+	print "#include <netinet6/ip6_mroute.h>"
+	print "#include <stdio.h>"
+	print "#include <cam/cam.h>"
+	print "#include <cam/scsi/scsi_pass.h>"
+	print "#include <stdbool.h>"
+	print "#include <stddef.h>"
+	print "#include <stdint.h>"
+	print "#include <sysdecode.h>"
+	print ""
+	print ioctl_includes
+	print ""
+	print "const char *"
+	print "sysdecode_ioctlname(unsigned long val)"
+	print "{"
+	print "\tconst char *str = NULL;"
+	print ""
+}
+
+/^#[ 	]*define[ 	]+[A-Za-z_][A-Za-z0-9_]*[ 	]+_IO/ {
+
+	# find where the name starts
+	for (i = 1; i <= NF; i++)
+		if ($i ~ /define/)
+			break;
+	++i;
+	#
+	printf("\t");
+	if (n++ > 0)
+		printf("else ");
+	printf("if (val == %s)\n", $i);
+	printf("\t\tstr = \"%s\";\n", $i);
+}
+END {
+	print ""
+	print "\treturn (str);"
+	print "}"
+}
+'