basic sorting implemented, segfaults in natural sort

backend.c

@@ -5,6 +5,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include "defines.h"
+#include "sorting.h"
 
 extern unsigned int settings;
 extern unsigned int file_modifiers;
@@ -13,6 +14,7 @@ extern char **content_m;
 extern char **content_r;
 extern char *path;
 
+
 void get_dir_size(char *path, unsigned long *file_count, unsigned long *longest_name){
 	DIR *dir = opendir(path);
 	*longest_name = 256; //magic number originates out of readdir(), unless i implement my own name size function, thisll do
@@ -58,18 +60,6 @@ void print_dir(WINDOW *win, char **dir_content){
 	}
 }
 
-// Comparison function to sort strings in ascending order
-int compare(const void *a, const void *b) {
-	return strcasecmp(a, b);
-}
-void sort_dir(unsigned long *file_count, unsigned long *longest_name, char **dir_content){
-	char content[*file_count][*longest_name];
-	memset(content,0,sizeof(content));
-	if ((file_modifiers & FILE_MODIFIERS_SORT_BITMASK) == 0) {//natural; first dirs, then files
-		qsort(dir_content, *file_count, *longest_name, compare);
-	}
-
-}
 void *populate_dir(void *which){ // 0=left, 1=main, 2=right
 	char wh = (char)which;
 	unsigned long file_count = 0;

defines.h

@@ -6,3 +6,10 @@
 
 #define FILE_MODIFIERS_HIDDEN_FILES 1
 #define FILE_MODIFIERS_SORT_BITMASK 126 // 00000000000000000000000001111110
+#define FILE_MODIFIERS_SORT_ALPHABETIC 2
+#define FILE_MODIFIERS_SORT_TYPE 4
+#define FILE_MODIFIERS_SORT_EXTENSION 8
+#define FILE_MODIFIERS_SORT_SIZE 16
+#define FILE_MODIFIERS_SORT_RANDOM 32
+#define FILE_MODIFIERS_SORT_REVERSE 64
+	//FILE_MODIFIERS_SORT_NATURAL is when bitmask is 0

sorting.c

@@ -0,0 +1,59 @@
+#include <curses.h>
+#include <string.h>
+#include <pthread.h>
+#include <strings.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "defines.h"
+
+extern unsigned int settings;
+extern unsigned int file_modifiers;
+extern unsigned short cpu_cores; //amount of cores/threads the host system reports to have
+extern char **content_l;
+extern char **content_m;
+extern char **content_r;
+extern char *path;
+
+int natural(const void *file0, const void *file1){
+	const char *rec1 = *(char**)file0;
+	const char *rec2 = *(char**)file1;
+	int ret = 0;
+	struct stat f0;
+	struct stat f1;
+	stat(rec1, &f0);
+	stat(rec2, &f1);
+
+
+	if (S_ISDIR(f0.st_mode) > S_ISDIR(f1.st_mode)) {
+		ret = 1;
+	} else if (S_ISDIR(f0.st_mode) < S_ISDIR(f1.st_mode)) {
+		ret = -1;
+	}
+
+	return ret;
+}
+
+int alphabetic(const void *str1, const void *str2){
+	const char *rec1 = *(char**)str1;
+	const char *rec2 = *(char**)str2;
+	int ret = strcmp(str1, rec2);
+
+	return ret;
+}
+
+void sort_dir(unsigned long *file_count, unsigned long *longest_name, char **dir_content){
+
+	if (file_modifiers & ~FILE_MODIFIERS_SORT_BITMASK) {
+		qsort(dir_content, *file_count, sizeof(longest_name), alphabetic);
+		qsort(dir_content, *file_count, sizeof(longest_name), natural);
+
+	} else if (file_modifiers & FILE_MODIFIERS_SORT_ALPHABETIC) {
+		qsort(dir_content, *file_count, sizeof(longest_name), alphabetic);
+	}
+
+
+
+}

sorting.h

@@ -0,0 +1,11 @@
+#include <curses.h>
+#include <string.h>
+#include <strings.h>
+#include <dirent.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "defines.h"
+#include "sorting.c"
+
+void sort_dir(unsigned long *file_count, unsigned long *longest_name, char **dir_content);
+