From 87dd764accfde63e0dfbe6e4994c45630abd6426 Mon Sep 17 00:00:00 2001
From: Screenager <admin@braindrainstudios.com>
Date: Wed, 21 Aug 2019 19:38:16 +0200
Subject: [PATCH] rework as function

---
 main.c     | 15 +++++++++++++++
 makefile   |  7 +++++++
 read_cfg.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 read_cfg.h | 12 ++++++++++++
 test.c     | 22 ----------------------
 test.cfg   |  9 +++++++--
 6 files changed, 94 insertions(+), 24 deletions(-)
 create mode 100644 main.c
 create mode 100644 makefile
 create mode 100644 read_cfg.c
 create mode 100644 read_cfg.h
 delete mode 100644 test.c

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..a19b813
--- /dev/null
+++ b/main.c
@@ -0,0 +1,15 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include"read_cfg.h"
+
+int main(){
+	char file[]="test.cfg";
+	options *option;
+	option=read_cfg(file); //returns pointer to struct with options
+	printf(option[1].name);printf("\n");
+	printf(option[1].setting);printf("\n");
+	printf(option[2].name);printf("\n");
+	printf(option[2].setting);printf("\n");
+	free(option); //freeing memory that got alloced in the function read_cfg
+	return 0;
+}
\ No newline at end of file
diff --git a/makefile b/makefile
new file mode 100644
index 0000000..6e4af67
--- /dev/null
+++ b/makefile
@@ -0,0 +1,7 @@
+CC=gcc
+CFLAGS=-O2
+LIBS=
+
+all: main.c read_cfg.c read_cfg.h
+	$(CC) -o test.exe main.c read_cfg.c $(CFLAGS) $(LIBS)
+
diff --git a/read_cfg.c b/read_cfg.c
new file mode 100644
index 0000000..9dfa3b2
--- /dev/null
+++ b/read_cfg.c
@@ -0,0 +1,53 @@
+/*reads a config file with the following format:
+
+name1=setting1
+name2=setting2
+
+example:
+
+	relay  = FALSE
+debug = 1
+mods=12345;98765;13456
+
+returns a pointer to a struct wich needs to be freed later on
+should be portable on pretty much every platform where there is a C compiler with malloc() and enough RAM, this is not optimized for ICs
+constants and struct defined in header
+
+implement comments later
+*/
+
+#include<stdio.h>
+#include<stdlib.h>
+#include<string.h>
+#include"read_cfg.h"
+options *read_cfg(char filename[]) {
+	FILE *fpointer;
+	char str[LINEBUFF];
+	char line[LINEBUFF];
+	int i=0;
+	int ib=0;
+	int il=0;
+	options *option;
+	option = malloc(MAXLINE*sizeof(*option)); //160 KB HEAP needs to be freed later in main.c
+	if ((fpointer = fopen(filename,"r")) == NULL){
+		printf("Error opening file");
+		return 0;
+		}
+	while( fgets (str, LINEBUFF, fpointer)!=NULL || il<=MAXLINE ) {
+		while (i<LINEBUFF){
+			if(str[i]!=' ' && str[i]!='\n' && str[i]!='\r'){line[ib]=str[i];i++;ib++;}
+			
+			
+			else{i++;}
+			}
+		if (line[0]!='\0'){
+			i=0;ib=0;
+			strcpy(option[il].name,strtok(line, "="));
+			strcpy(option[il].setting,strtok(NULL, "="));
+			}
+		else{}
+		il++;
+		}
+	fclose(fpointer);
+	return option;
+}
\ No newline at end of file
diff --git a/read_cfg.h b/read_cfg.h
new file mode 100644
index 0000000..e9a0d4b
--- /dev/null
+++ b/read_cfg.h
@@ -0,0 +1,12 @@
+//no dynamic growth use these to set your limits
+#define LINEBUFF 4096	//how many bytes per fgets()
+#define MAXLINE 20		//how many lines you want to parse max
+
+
+//struct with options 
+typedef struct options{
+	char name[LINEBUFF];
+	char setting[LINEBUFF];
+}options;
+
+options *read_cfg(char filename[]);
\ No newline at end of file
diff --git a/test.c b/test.c
deleted file mode 100644
index 449c9d9..0000000
--- a/test.c
+++ /dev/null
@@ -1,22 +0,0 @@
-#include<stdio.h>
-#include<stdlib.h>
-#include<string.h>
-int main() {
-	FILE *fpointer;
-	char str[60];
-	char strb[60];
-	int i=0;
-	int ib=0;
-	if ((fpointer = fopen("test.cfg","r")) == NULL){
-		printf("Error opening file");
-		exit(1);
-		}
-	while( fgets (str, 60, fpointer)!=NULL ) {
-		while (i<60){
-			if(str[i]!=' '){strb[ib]=str[i];i++;ib++;}else{i++;}
-			}
-		puts(strb);i=0;ib=0;
-		}
-	fclose(fpointer);
-	return 0;
-}
\ No newline at end of file
diff --git a/test.cfg b/test.cfg
index f8be7bb..2f491de 100644
--- a/test.cfg
+++ b/test.cfg
@@ -1,2 +1,7 @@
-line1
-line2
\ No newline at end of file
+  line1 = alasdads  
+ line2=lel
+ mods  = asdasd;94343;deinemudder //testst
+ line4 = lerare
+ 
+ 
+ 
\ No newline at end of file