Handle unit=0 in Read/Get/SetBytes functions.

src/xpdev/ini_file.c

@@ -420,6 +420,8 @@ char* iniSetBytes(str_list_t* list, const char* section, const char* key, ulong
 	char	str[INI_MAX_VALUE_LEN];
 	double	bytes;
 
+	if(unit<1)
+		unit=1;
 	bytes=value*unit;
 
 	if(bytes>=(1024*1024*1024))
@@ -967,7 +969,7 @@ static ulong parseBytes(const char* value, ulong unit)
 				break;
 		}
 	}
-	return((ulong)(bytes/unit));
+	return((ulong)(unit>1 ? (bytes/unit):bytes));
 }
 
 ulong iniReadBytes(FILE* fp, const char* section, const char* key, ulong unit, ulong deflt)