1 files changed, 58 insertions, 0 deletions
diff --git a/usr.sbin/xntpd/lib/decodenetnum.c b/usr.sbin/xntpd/lib/decodenetnum.c
new file mode 100644
index 0000000..32320a2
--- /dev/null
+++ b/usr.sbin/xntpd/lib/decodenetnum.c
@@ -0,0 +1,58 @@
+/* decodenetnum.c,v 3.1 1993/07/06 01:08:11 jbj Exp
+ * decodenetnum - return a net number (this is crude, but careful)
+ */
+#include <sys/types.h>
+#include <ctype.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#include "ntp_stdlib.h"
+
+int
+decodenetnum(num, netnum)
+	const char *num;
+	U_LONG *netnum;
+{
+	register const char *cp;
+	register char *bp;
+	register int i;
+	register int temp;
+	register int eos;
+	char buf[80];		/* will core dump on really stupid stuff */
+
+	cp = num;
+	*netnum = 0;
+
+	if (*cp == '[') {
+		eos = ']';
+		cp++;
+	} else {
+		eos = '\0';
+	}
+
+	for (i = 0; i < 4; i++) {
+		bp = buf;
+		while (isdigit(*cp))
+			*bp++ = *cp++;
+		if (bp == buf)
+			break;
+
+		if (i < 3) {
+			if (*cp++ != '.')
+				break;
+		} else if (*cp != eos)
+			break;
+
+		*bp = '\0';
+		temp = atoi(buf);
+		if (temp > 255)
+			break;
+		*netnum <<= 8;
+		*netnum += temp;
+	}
+	
+	if (i < 4)
+		return 0;
+	*netnum = htonl(*netnum);
+	return 1;
+}