The "inih" library is distributed under the New BSD license:

Copyright (c) 2009, Brush Technology

All rights reserved.

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright

      notice, this list of conditions and the following disclaimer.

    * Redistributions in binary form must reproduce the above copyright

      notice, this list of conditions and the following disclaimer in the

      documentation and/or other materials provided with the distribution.

    * Neither the name of Brush Technology nor the names of its contributors

      may be used to endorse or promote products derived from this software

      without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY BRUSH TECHNOLOGY ''AS IS'' AND ANY

EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

DISCLAIMED. IN NO EVENT SHALL BRUSH TECHNOLOGY BE LIABLE FOR ANY

DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

inih is a simple .INI file parser written in C, released under the New BSD

license (see LICENSE.txt). Go to the project home page for more info:

http://code.google.com/p/inih/

/* inih -- simple .INI file parser

inih is released under the New BSD license (see LICENSE.txt). Go to the project

home page for more info:

http://code.google.com/p/inih/

*/

#include <stdio.h>

#include <ctype.h>

#include <string.h>

#include "ini.h"

#include "../logger.h"

#if !INI_USE_STACK

#include <stdlib.h>

#endif

#define MAX_SECTION 50

#define MAX_NAME 50

/* Strip whitespace chars off end of given string, in place. Return s. */

static char* rstrip(char* s)

{

    char* p = s + strlen(s);

    while (p > s && isspace((unsigned char)(*--p)))

        *p = '\0';

    return s;

}

/* Return pointer to first non-whitespace char in given string. */

static char* lskip(const char* s)

{

    while (*s && isspace((unsigned char)(*s)))

        s++;

    return (char*)s;

}

/* Return pointer to first char c or ';' comment in given string, or pointer to

   null at end of string if neither found. ';' must be prefixed by a whitespace

   character to register as a comment. */

static char* find_char_or_comment(const char* s, char c)

{

    int was_whitespace = 0;

    while (*s && *s != c && !(was_whitespace && *s == ';')) {

        was_whitespace = isspace((unsigned char)(*s));

        s++;

    }

    return (char*)s;

}

/* Version of strncpy that ensures dest (size bytes) is null-terminated. */

static char* strncpy0(char* dest, const char* src, size_t size)

{

    strncpy(dest, src, size);

    dest[size - 1] = '\0';

    return dest;

}

/* See documentation in header file. */

int ini_parse_file(int (*handler)(void*, const char*, const char*,

                   const char*),

                   void* user)

{

    /* Uses a fair bit of stack (use heap instead if you need to) */

#if INI_USE_STACK

    char line[INI_MAX_LINE];

#else

    char* line;

#endif

    char section[MAX_SECTION] = "";

    char prev_name[MAX_NAME] = "";

    char* start;

    char* end;

    char* name;

    char* value;

    int lineno = 0;

    int error = 0;

#if !INI_USE_STACK

    line = (char*)malloc(INI_MAX_LINE);

    if (!line) {

        return -2;

    }

#endif

    /* Scan through file line by line */

    while (logger_config_fgets(line, INI_MAX_LINE) != NULL) {

        lineno++;

        start = line;

#if INI_ALLOW_BOM

        if (lineno == 1 && (unsigned char)start[0] == 0xEF &&

                           (unsigned char)start[1] == 0xBB &&

                           (unsigned char)start[2] == 0xBF) {

            start += 3;

        }

#endif

        start = lskip(rstrip(start));

        if (*start == ';' || *start == '#') {

            /* Per Python ConfigParser, allow '#' comments at start of line */

        }

#if INI_ALLOW_MULTILINE

        else if (*prev_name && *start && start > line) {

            /* Non-black line with leading whitespace, treat as continuation

               of previous name's value (as per Python ConfigParser). */

            if (!handler(user, section, prev_name, start) && !error)

                error = lineno;

        }

#endif

        else if (*start == '[') {

            /* A "[section]" line */

            end = find_char_or_comment(start + 1, ']');

            if (*end == ']') {

                *end = '\0';

                strncpy0(section, start + 1, sizeof(section));

                *prev_name = '\0';

            }

            else if (!error) {

                /* No ']' found on section line */

                error = lineno;

            }

        }

        else if (*start && *start != ';') {

            /* Not a comment, must be a name[=:]value pair */

            end = find_char_or_comment(start, '=');

            if (*end != '=') {

                end = find_char_or_comment(start, ':');

            }

            if (*end == '=' || *end == ':') {

                *end = '\0';

                name = rstrip(start);

                value = lskip(end + 1);

                end = find_char_or_comment(value, '\0');

                if (*end == ';')

                    *end = '\0';

                rstrip(value);

                /* Valid name[=:]value pair found, call handler */

                strncpy0(prev_name, name, sizeof(prev_name));

                if (!handler(user, section, name, value) && !error)

                    error = lineno;

            }

            else if (!error) {

                /* No '=' or ':' found on name[=:]value line */

                error = lineno;

            }

        }

    }

#if !INI_USE_STACK

    free(line);

#endif

    return error;

}

/* See documentation in header file. */

int ini_parse(int (*handler)(void*, const char*, const char*, const char*),

              void* user)

{

    int error;

    if (!logger_getconfigfd())

        return -1;

    error = ini_parse_file(handler, user);

    logger_closeconffd();

    return error;

}

/* inih -- simple .INI file parser

inih is released under the New BSD license (see LICENSE.txt). Go to the project

home page for more info:

http://code.google.com/p/inih/

*/

#ifndef __INI_H__

#define __INI_H__

/* Make this header file easier to include in C++ code */

#ifdef __cplusplus

extern "C" {

#endif

#include <stdio.h>

/* Parse given INI-style file. May have [section]s, name=value pairs

   (whitespace stripped), and comments starting with ';' (semicolon). Section

   is "" if name=value pair parsed before any section heading. name:value

   pairs are also supported as a concession to Python's ConfigParser.

   For each name=value pair parsed, call handler function with given user

   pointer as well as section, name, and value (data only valid for duration

   of handler call). Handler should return nonzero on success, zero on error.

   Returns 0 on success, line number of first error on parse error (doesn't

   stop on first error), -1 on file open error, or -2 on memory allocation

   error (only when INI_USE_STACK is zero).

*/

int ini_parse_file(int (*handler)(void*, const char*, const char*,

					const char*),

					void* user);

int ini_parse(int (*handler)(void*, const char*, const char*, const char*),

				void* user);

/* Nonzero to allow multi-line value parsing, in the style of Python's

   ConfigParser. If allowed, ini_parse() will call the handler with the same

   name for each subsequent line parsed. */

#ifndef INI_ALLOW_MULTILINE

#define INI_ALLOW_MULTILINE 1

#endif

/* Nonzero to allow a UTF-8 BOM sequence (0xEF 0xBB 0xBF) at the start of

   the file. See http://code.google.com/p/inih/issues/detail?id=21 */

#ifndef INI_ALLOW_BOM

#define INI_ALLOW_BOM 1

#endif

/* Nonzero to use stack, zero to use heap (malloc/free). */

#ifndef INI_USE_STACK

#define INI_USE_STACK 1

#endif

/* Maximum line length for any line in INI file. */

#ifndef INI_MAX_LINE

#define INI_MAX_LINE 25

#endif

#ifdef __cplusplus

}

#endif

#endif /* __INI_H__ */

/*

 * Master Firmware: INI Parser

 *

 * Wireless Observational Modular Aerial Network

 * 

 * Ethan Zonca

 * Matthew Kanning

 * Kyle Ripperger

 * Matthew Kroening

 *

 */

#include "../config.h"

#include <stdbool.h>

#include <stdlib.h>

#include <string.h>

#include "iniparse.h"

#include "ini/ini.h"

#include "logger.h"

static int handler(void* user, const char* section, const char* name, const char* value)

{

	configuration* pconfig = (configuration*)user;

	#define MATCH(s, n) strcmp(section, s) == 0 && strcmp(name, n) == 0

	if (MATCH("general", "temp")) {

		pconfig->heater_threshold = atoi(value);

	} else if (MATCH("general", "reqrate")) {

		pconfig->datarequest_rate = strtol(value, NULL, 10);

	} else if (MATCH("blackout", "enable")) {

		pconfig->blackout_enable = strncmp(value, "false", 4);

	} else if (MATCH("blackout", "timeout")) {

		pconfig->blackout_timeout = strtol(value, NULL, 10);

	} else if (MATCH("buzzer", "failsafe")) {

		pconfig->buzzer_failsafe_duration = strtol(value, NULL, 10);

	} else if (MATCH("buzzer", "mintime")) {

		pconfig->buzzer_trigger_minduration = strtol(value, NULL, 10);

	} else if (MATCH("buzzer", "maxalt")) {

		pconfig->buzzer_trigger_maxaltitude = strtol(value, NULL, 10);

	} else if (MATCH("aprs", "call")) {

		strncpy(pconfig->s_callsign, value, 10);

		//pconfig->s_callsign = strdup(value);

	} else if (MATCH("aprs", "call_id")) {

		pconfig->s_callsign_id = atoi(value);

	} else if (MATCH("aprs", "period")) {

		pconfig->aprs_transmit_period = strtol(value, NULL, 10);

	} else {

		error_log_msg(ERROR_CONFIGPARSE,false,"bad entry");

		return 0;  /* unknown section/name, error */

	}

	return 1;

}

configuration config = {

	#ifdef BLACKOUT_ENABLE

	.blackout_enable = true,

	#else

	.blackout_enable = false,

	#endif

	.blackout_timeout = BLACKOUT_TIMEOUT,

	.heater_threshold = HEATER_THRESHOLD,

	.buzzer_failsafe_duration = BUZZER_FAILSAFE_DURATION,

	.buzzer_trigger_minduration = BUZZER_TRIGGER_MINDURATION,

	.buzzer_trigger_maxaltitude = BUZZER_TRIGGER_MAXALTITUDE,

	.datarequest_rate = DATAREQUEST_RATE,

	.s_callsign = S_CALLSIGN,

	.s_callsign_id = S_CALLSIGN_ID,

	.aprs_transmit_period = APRS_TRANSMIT_PERIOD

};

void iniparse_getconfig()

{

	// Init configuration with default values from config.h

	if (ini_parse(handler, &config) < 0) {

		// ERROR: Make new error code here!

		error_log(ERROR_CONFIGPARSE, false);

	}

	sysconfig = &config;

	// Print configuration to err

	error_log_rawwrite("\nConf:\n");

	char msg[50];

	snprintf(msg, 50,"reqrate: %lu\n",sysconfig->datarequest_rate);

	error_log_rawwrite(msg);

	snprintf(msg, 50,"call: %s\n",sysconfig->s_callsign);

	error_log_rawwrite(msg);

	snprintf(msg, 50,"callID: %u\n",sysconfig->s_callsign_id);

	error_log_rawwrite(msg);

	snprintf(msg, 50,"aprsperiod: %lu\n\n",sysconfig->aprs_transmit_period);

	error_log_rawwrite(msg);

	return;

}

/*

 * Master Firmware: INI Parser

 *

 * Wireless Observational Modular Aerial Network

 * 

 * Ethan Zonca

 * Matthew Kanning

 * Kyle Ripperger

 * Matthew Kroening

 *

 */

#ifndef INIPARSE_H_

#define INIPARSE_H_

#endif /* INIPARSE_H_ */