Started adding some documentation

src/utils.c

@@ -12,7 +12,7 @@
 #include <fcntl.h>
 #include <openssl/evp.h>
 
-char ERROR_BUFFER[ERROR_BUFFER_SIZE];
+char _ERROR_BUFFER[ERROR_BUFFER_SIZE];
 
 result_t success(void) {
 	return EXIT_SUCCESS;
@@ -23,7 +23,7 @@ result_t failure(const char* format, ...) {
 	va_start(args, format);
 
 	// Print the error message into the error buffer
-	vsnprintf(ERROR_BUFFER, ERROR_BUFFER_SIZE, format, args);
+	vsnprintf(_ERROR_BUFFER, ERROR_BUFFER_SIZE, format, args);
 
 	va_end(args);
 
@@ -31,7 +31,7 @@ result_t failure(const char* format, ...) {
 }
 
 const char* error(void) {
-	return ERROR_BUFFER;
+	return _ERROR_BUFFER;
 }
 
 result_t format(char** _str, const char* format, ...) {