1 files changed, 154 insertions, 0 deletions
diff --git a/ntpq/ntpq.h b/ntpq/ntpq.h
new file mode 100644
index 0000000..ec2bcb9
--- /dev/null
+++ b/ntpq/ntpq.h
@@ -0,0 +1,154 @@
+/*
+ * ntpq.h - definitions of interest to ntpq
+ */
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#include "ntp_fp.h"
+#include "ntp.h"
+#include "ntp_stdlib.h"
+#include "ntp_string.h"
+#include "ntp_malloc.h"
+#include "ntp_assert.h"
+#include "ntp_control.h"
+#include "lib_strbuf.h"
+
+/*
+ * Maximum number of arguments
+ */
+#define	MAXARGS	4
+
+/*
+ * Limit on packets in a single response.  Increasing this value to
+ * 96 will marginally speed "mrulist" operation on lossless networks
+ * but it has been observed to cause loss on WiFi networks and with
+ * an IPv6 go6.net tunnel over UDP.  That loss causes the request
+ * row limit to be cut in half, and it grows back very slowly to
+ * ensure forward progress is made and loss isn't triggered too quickly
+ * afterward.  While the lossless case gains only marginally with
+ * MAXFRAGS == 96, the lossy case is a lot slower due to the repeated
+ * timeouts.  Empirally, MAXFRAGS == 32 avoids most of the routine loss
+ * on both the WiFi and UDP v6 tunnel tests and seems a good compromise.
+ * This suggests some device in the path has a limit of 32 ~512 byte UDP
+ * packets in queue.
+ * Lowering MAXFRAGS may help with particularly lossy networks, but some
+ * ntpq commands may rely on the longtime value of 24 implicitly,
+ * assuming a single multipacket response will be large enough for any
+ * needs.  In contrast, the "mrulist" command is implemented as a series
+ * of requests and multipacket responses to each.
+ */
+#define	MAXFRAGS	32
+
+/*
+ * Error codes for internal use
+ */
+#define	ERR_UNSPEC		256
+#define	ERR_INCOMPLETE		257
+#define	ERR_TIMEOUT		258
+#define	ERR_TOOMUCH		259
+
+/*
+ * Flags for forming descriptors.
+ */
+#define	OPT		0x80	/* this argument is optional, or'd with type */
+
+#define	NO		0x0
+#define	NTP_STR		0x1	/* string argument */
+#define	NTP_UINT	0x2	/* unsigned integer */
+#define	NTP_INT		0x3	/* signed integer */
+#define	NTP_ADD		0x4	/* IP network address */
+#define IP_VERSION	0x5	/* IP version */
+#define	NTP_ADP		0x6	/* IP address and port */
+#define NTP_LFP		0x7	/* NTP timestamp */
+#define NTP_MODE	0x8	/* peer mode */
+#define NTP_2BIT	0x9	/* leap bits */
+
+/*
+ * Arguments are returned in a union
+ */
+typedef union {
+	const char *string;
+	long ival;
+	u_long uval;
+	sockaddr_u netnum;
+} arg_v;
+
+/*
+ * Structure for passing parsed command line
+ */
+struct parse {
+	const char *keyword;
+	arg_v argval[MAXARGS];
+	int nargs;
+};
+
+/*
+ * ntpdc includes a command parser which could charitably be called
+ * crude.  The following structure is used to define the command
+ * syntax.
+ */
+struct xcmd {
+  const char *keyword;		/* command key word */
+	void (*handler)	(struct parse *, FILE *);	/* command handler */
+	u_char arg[MAXARGS];	/* descriptors for arguments */
+  const char *desc[MAXARGS];	/* descriptions for arguments */
+  const char *comment;
+};
+
+/*
+ * Structure to hold association data
+ */
+struct association {
+	associd_t assid;
+	u_short status;
+};
+
+/*
+ * mrulist terminal status interval
+ */
+#define	MRU_REPORT_SECS	5
+
+/*
+ * var_format is used to override cooked formatting for selected vars.
+ */
+typedef struct var_format_tag {
+	const char *	varname;
+	u_short		fmt;
+} var_format;
+
+typedef struct chost_tag chost;
+struct chost_tag {
+	const char *name;
+	int 	    fam;
+};
+
+extern chost	chosts[];
+
+extern int	interactive;	/* are we prompting? */
+extern int	old_rv;		/* use old rv behavior? --old-rv */
+extern u_int	assoc_cache_slots;/* count of allocated array entries */
+extern u_int	numassoc;	/* number of cached associations */
+extern u_int	numhosts;
+
+extern	void	grow_assoc_cache(void);
+extern	void	asciize		(int, char *, FILE *);
+extern	int	getnetnum	(const char *, sockaddr_u *, char *, int);
+extern	void	sortassoc	(void);
+extern	void	show_error_msg	(int, associd_t);
+extern	int	dogetassoc	(FILE *);
+extern	int	doquery		(int, associd_t, int, int, const char *,
+				 u_short *, int *, const char **);
+extern	int	doqueryex	(int, associd_t, int, int, const char *,
+				 u_short *, int *, const char **, int);
+extern	const char * nntohost	(sockaddr_u *);
+extern	const char * nntohost_col (sockaddr_u *, size_t, int);
+extern	const char * nntohostp	(sockaddr_u *);
+extern	int	decodets	(char *, l_fp *);
+extern	int	decodeuint	(char *, u_long *);
+extern	int	nextvar		(int *, const char **, char **, char **);
+extern	int	decodetime	(char *, l_fp *);
+extern	void	printvars	(int, const char *, int, int, int, FILE *);
+extern	int	decodeint	(char *, long *);
+extern	void	makeascii	(int, const char *, FILE *);
+extern	const char * trunc_left	(const char *, size_t);
+extern	const char * trunc_right(const char *, size_t);