created some basic code for logs generation

I will make more variable etc. tomorrow

src/logger/lib/logger.c

@@ -1,10 +1,53 @@
 #include <why2/logger/logger.h>
 
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <time.h>
+#include <sys/stat.h>
+
+#include <why2/logger/flags.h>
 
 int initLogger(char *directoryPath)
 {
-    printf("PATH is: %s\n", directoryPath);
+    //VARIABLES
+    struct stat st;
+    struct dirent * entry;
+    time_t timeL = time(NULL);
+    struct tm tm = *localtime(&timeL);
+    int buffer = 1;
+    char *filePath = malloc(strlen(directoryPath) + strlen(LOG_FORMAT) + 1);
+    DIR *dir;
 
-    return 0;
+    //CREATE directoryPath DIRECTORY IF IT DOESN'T EXISTS ALREADY
+    if (stat(directoryPath, &st) == -1)
+    {
+        mkdir(directoryPath, 0700);
+    }
+
+    //COUNT HOW MANY LOGS WERE GENERATED THIS DAY
+    dir = opendir(directoryPath);
+    while ((entry = readdir(dir)) != NULL)
+    {
+        if (entry -> d_type == DT_REG)
+        {
+            if (strcmp(entry -> d_name, ".gitkeep") == 0) continue;
+
+            buffer++;
+        }
+    }
+
+    if (buffer > 0xfff) return INVALID_FILE;
+
+    sprintf(filePath, "%s/%04d-%02d-%02d_%03x", directoryPath, tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, buffer);
+
+    //DEALLOCATION
+    //free(filePath);
+    closedir(dir);
+
+    return open(filePath, O_WRONLY | O_APPEND | O_CREAT, 0644);
 }
+
+//TODO: fix filePath deallocation somehow