# HG changeset patch
# User ethanzonca@CL-ENS241-08.cedarville.edu
# Date 2013-04-12 15:32:31
# Node ID 44700fd98d2bab7dc76b8955ef7ceba8ee338162
# Parent  88d82c0c283c9f37f5d1e4aa4f61d97f834b82af

Initial import of INI parsing module

diff --git a/master/master/lib/ini/LICENSE.txt b/master/master/lib/ini/LICENSE.txt
new file mode 100644
--- /dev/null
+++ b/master/master/lib/ini/LICENSE.txt
@@ -0,0 +1,27 @@
+
+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.
diff --git a/master/master/lib/ini/README.txt b/master/master/lib/ini/README.txt
new file mode 100644
--- /dev/null
+++ b/master/master/lib/ini/README.txt
@@ -0,0 +1,5 @@
+
+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/
diff --git a/master/master/lib/ini/ini.c b/master/master/lib/ini/ini.c
new file mode 100644
--- /dev/null
+++ b/master/master/lib/ini/ini.c
@@ -0,0 +1,173 @@
+/* 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;
+}
diff --git a/master/master/lib/ini/ini.h b/master/master/lib/ini/ini.h
new file mode 100644
--- /dev/null
+++ b/master/master/lib/ini/ini.h
@@ -0,0 +1,67 @@
+/* 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__ */
diff --git a/master/master/lib/iniparse.c b/master/master/lib/iniparse.c
new file mode 100644
--- /dev/null
+++ b/master/master/lib/iniparse.c
@@ -0,0 +1,118 @@
+/*
+ * 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;
+}
\ No newline at end of file
diff --git a/master/master/lib/iniparse.h b/master/master/lib/iniparse.h
new file mode 100644
--- /dev/null
+++ b/master/master/lib/iniparse.h
@@ -0,0 +1,20 @@
+/*
+ * 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_ */
\ No newline at end of file