Updated project structure and makefile. Started creating frontend. Created csv database interphase

src/utils_op/utils.c

@@ -0,0 +1,70 @@
+#include "../../include/utils_op/utils.h"
+
+/** 
+ * @brief Prints error
+ * 
+ * @param {char *} msg
+*/
+void err_msg(char *msg)
+{
+    fprintf(stderr, "Error: %s\n", msg);
+}
+
+/**
+ * @brief Add str2 in front of str1
+ * 
+ * @param str1 
+ * @param str2 
+ * @return char* 
+ */
+char *add_to_front(char **str1, char *str2)
+{
+    char *tmp = strdup(*str1);
+
+    strcpy(*str1, str2);
+    strcat(*str1, tmp);
+
+    // free(tmp);
+
+    return *str1;
+}
+
+/**
+ * @brief Get the status message object
+ * 
+ * @param status_code 
+ * @return char* 
+ */
+char *get_status_message(int status_code)
+{
+    switch (status_code)
+    {
+    case 200:
+        return "OK";
+    case 400:
+        return "Internal Server Error";
+    case 401:
+        return "Unauthorized";
+    case 403:
+        return "Forbidden";
+    case 404:
+        return "NOT FOUND";
+    case 500:
+        return "Internal Server Error";
+    case 501:
+        return "Not Implemented";
+    case 502:
+        return "Bad Gateway";
+    default:
+        return "None";
+        break;
+    }
+}
+
+char *to_lower(char *str)
+{
+    for (char *p = str; *p != '\0'; p++)
+        *p = tolower(*p);
+
+    return str;
+}