1 files changed, 88 insertions, 0 deletions
diff --git a/sebhbsd/freebsd/contrib/ntp/libntp/decodenetnum.c b/sebhbsd/freebsd/contrib/ntp/libntp/decodenetnum.c
new file mode 100644
index 0000000..db3d990
--- /dev/null
+++ b/sebhbsd/freebsd/contrib/ntp/libntp/decodenetnum.c
@@ -0,0 +1,88 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * decodenetnum - return a net number (this is crude, but careful)
+ */
+#include <config.h>
+#include <sys/types.h>
+#include <ctype.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
+#include "ntp.h"
+#include "ntp_stdlib.h"
+#include "ntp_assert.h"
+
+/*
+ * decodenetnum		convert text IP address and port to sockaddr_u
+ *
+ * Returns 0 for failure, 1 for success.
+ */
+int
+decodenetnum(
+	const char *num,
+	sockaddr_u *netnum
+	)
+{
+	struct addrinfo hints, *ai = NULL;
+	int err;
+	u_short port;
+	const char *cp;
+	const char *port_str;
+	char *pp;
+	char *np;
+	char name[80];
+
+	REQUIRE(num != NULL);
+
+	if (strlen(num) >= sizeof(name)) {
+		return 0;
+	}
+
+	port_str = NULL;
+	if ('[' != num[0]) {
+		/*
+		 * to distinguish IPv6 embedded colons from a port
+		 * specification on an IPv4 address, assume all 
+		 * legal IPv6 addresses have at least two colons.
+		 */
+		pp = strchr(num, ':');
+		if (NULL == pp)
+			cp = num;	/* no colons */
+		else if (NULL != strchr(pp + 1, ':'))
+			cp = num;	/* two or more colons */
+		else {			/* one colon */
+			strlcpy(name, num, sizeof(name));
+			cp = name;
+			pp = strchr(cp, ':');
+			*pp = '\0';
+			port_str = pp + 1;
+		}
+	} else {
+		cp = num + 1;
+		np = name; 
+		while (*cp && ']' != *cp)
+			*np++ = *cp++;
+		*np = 0;
+		if (']' == cp[0] && ':' == cp[1] && '\0' != cp[2])
+			port_str = &cp[2];
+		cp = name; 
+	}
+	ZERO(hints);
+	hints.ai_flags = Z_AI_NUMERICHOST;
+	err = getaddrinfo(cp, "ntp", &hints, &ai);
+	if (err != 0)
+		return 0;
+	INSIST(ai->ai_addrlen <= sizeof(*netnum));
+	ZERO(*netnum);
+	memcpy(netnum, ai->ai_addr, ai->ai_addrlen);
+	freeaddrinfo(ai);
+	if (NULL == port_str || 1 != sscanf(port_str, "%hu", &port))
+		port = NTP_PORT;
+	SET_PORT(netnum, port);
+	return 1;
+}