src/helpers.c File Reference

Implementation of helper functions for fap.c. More...

#include "helpers.h"
#include "helpers2.h"
#include "regs.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <regex.h>
#include <ctype.h>
#include <math.h>

Include dependency graph for helpers.c:

Go to the source code of this file.

Functions
int	fapint_parse_header (fap_packet_t *packet, short const is_ax25)
	Parses packet->header into source, target and path.
int	fapint_parse_mice (fap_packet_t *packet, char const *input, unsigned int const input_len)
	Try to parse given packet body as mic-e packet.
time_t	fapint_parse_timestamp (char const *input)
	Returns unixtime based on timestamp in given body.
int	fapint_parse_compressed (fap_packet_t *packet, char const *input)
	Try to parse given packet body as compressed position report.
int	fapint_parse_normal (fap_packet_t *packet, char const *input)
	Try to parse given packet body as normal position report.
void	fapint_parse_comment (fap_packet_t *packet, char const *input, unsigned int const input_len)
	Check given packet body for course, speed PHGR, altitude and comments.
int	fapint_parse_nmea (fap_packet_t *packet, char const *input, unsigned int const input_len)
	Parse NMEA packet.
int	fapint_parse_object (fap_packet_t *packet, char const *input, unsigned int const input_len)
	Try to parse given packet body as object.
int	fapint_parse_item (fap_packet_t *packet, char const *input, unsigned int const input_len)
	Try to parse given packet body as item.
int	fapint_parse_message (fap_packet_t *packet, char const *input, unsigned int const input_len)
	Try to parse given packet body as message.
int	fapint_parse_capabilities (fap_packet_t *packet, char const *input, unsigned int const input_len)
	Parse capabilities message.
int	fapint_parse_status (fap_packet_t *packet, char const *input, unsigned int const input_len)
	Parse status message.
int	fapint_parse_wx (fap_packet_t *packet, char const *input, unsigned int const input_len)
	Parse wx report.
int	fapint_parse_telemetry (fap_packet_t *packet, char const *input)
	Parse telemetry message.
int	fapint_parse_wx_peet_logging (fap_packet_t *packet, char const *input)
	Parses a Peet bros Ultimeter weather logging frame (!! header).
int	fapint_parse_wx_peet_packet (fap_packet_t *packet, char const *input)
	Parses a Peet bros Ultimeter weather packet ($ULTW header).
int	fapint_parse_dao (fap_packet_t *packet, char input[3])
	Parse given !DAO! extension.
char *	fapint_check_kiss_callsign (char *input)
	Validates given KISS-level callsign.
fap_packet_t *	fapint_create_packet ()
	Creates and initializes an empty packet.

---

Detailed Description

Implementation of helper functions for fap.c.

Author:

Tapio Aaltonen

Definition in file helpers.c.

---

Function Documentation

int fapint_parse_header	(	fap_packet_t *	packet,
		short const	is_ax25
	)

Parses packet->header into source, target and path.

Returns:

1 on success, 0 on failure.

Definition at line 50 of file helpers.c.

int fapint_parse_mice	(	fap_packet_t *	packet,
		char const *	input,
		unsigned int const	input_len
	)

Try to parse given packet body as mic-e packet.

Everything after the mic-e report is also parsed here.

Returns:

1 on success, 0 on failure.

Definition at line 311 of file helpers.c.

time_t fapint_parse_timestamp

(

char const *

input

)

Returns unixtime based on timestamp in given body.

Returns:

Unixtime if body had valid timestamp, 0 if not.

Definition at line 706 of file helpers.c.

int fapint_parse_compressed	(	fap_packet_t *	packet,
		char const *	input
	)

Try to parse given packet body as compressed position report.

Handles only compressed position report from beginning of body. Input is assumed to be null-terminated.

Returns:

1 on success, 0 on failure.

Definition at line 852 of file helpers.c.

int fapint_parse_normal	(	fap_packet_t *	packet,
		char const *	input
	)

Try to parse given packet body as normal position report.

Handles only normal position report from beginning of body. Input is assumed to be null-terminated.

Returns:

1 on success, 0 on failure.

Definition at line 1013 of file helpers.c.

void fapint_parse_comment	(	fap_packet_t *	packet,
		char const *	input,
		unsigned int const	input_len
	)

Check given packet body for course, speed PHGR, altitude and comments.

Looks for optional fields and can't thus fail.

Definition at line 1189 of file helpers.c.

int fapint_parse_nmea	(	fap_packet_t *	packet,
		char const *	input,
		unsigned int const	input_len
	)

Parse NMEA packet.

Returns:

1 on success, 0 on failure.

Definition at line 1365 of file helpers.c.

int fapint_parse_object	(	fap_packet_t *	packet,
		char const *	input,
		unsigned int const	input_len
	)

Try to parse given packet body as object.

Returns:

1 on success, 0 on failure.

Definition at line 1954 of file helpers.c.

int fapint_parse_item	(	fap_packet_t *	packet,
		char const *	input,
		unsigned int const	input_len
	)

Try to parse given packet body as item.

Returns:

1 on success, 0 on failure.

Definition at line 2056 of file helpers.c.

int fapint_parse_message	(	fap_packet_t *	packet,
		char const *	input,
		unsigned int const	input_len
	)

Try to parse given packet body as message.

Returns:

1 on success, 0 on failure.

Definition at line 2154 of file helpers.c.

int fapint_parse_capabilities	(	fap_packet_t *	packet,
		char const *	input,
		unsigned int const	input_len
	)

Parse capabilities message.

Returns:

1 on success, 0 on failure.

Definition at line 2326 of file helpers.c.

int fapint_parse_status	(	fap_packet_t *	packet,
		char const *	input,
		unsigned int const	input_len
	)

Parse status message.

Returns:

1 on success, 0 on failure.

Definition at line 2466 of file helpers.c.

int fapint_parse_wx	(	fap_packet_t *	packet,
		char const *	input,
		unsigned int const	input_len
	)

Parse wx report.

Returns:

1 on success, 0 on failure.

Definition at line 2516 of file helpers.c.

int fapint_parse_telemetry	(	fap_packet_t *	packet,
		char const *	input
	)

Parse telemetry message.

Returns:

1 on success, 0 on failure.

Definition at line 2940 of file helpers.c.

int fapint_parse_wx_peet_logging	(	fap_packet_t *	packet,
		char const *	input
	)

Parses a Peet bros Ultimeter weather logging frame (!! header).

Returns:

1 on success, 0 on failure.

Definition at line 3041 of file helpers.c.

int fapint_parse_wx_peet_packet	(	fap_packet_t *	packet,
		char const *	input
	)

Parses a Peet bros Ultimeter weather packet ($ULTW header).

Returns:

1 on success, 0 on failure.

Definition at line 3314 of file helpers.c.

int fapint_parse_dao	(	fap_packet_t *	packet,
		char	input[3]
	)

Parse given !DAO! extension.

Parse a possible !DAO! extension (datum and extra lat/lon digits).

Parameters:

	packet	Results are saved here.
	input	The 3 bytes between exclamation marks.

Returns:

1 if a valid !DAO! extension was detected in the test subject (and stored in $rethash), 0 if not.

Definition at line 3598 of file helpers.c.

char* fapint_check_kiss_callsign

(

char *

input

)

Validates given KISS-level callsign.

Checks a callsign for validity and strips trailing spaces out and returns the string.

Returns:

Copy of input at success, NULL when failure occurs.

Definition at line 3680 of file helpers.c.