FTP List format

Question

I\'m writing an embedded ftp server, and I cannot get the listing format correctly. The server works completely, only programs like FileZilla cannot interpret the listing format

Answer 1

Since you did not specify the programming language, I thought I would give my 2cents to this....

permissions[tab]number?[tab]owner[tab]group[tab]filesize[tab]date[tab]filename 
                ^^^^^^^                                      ^^^^
             no of inodes                      Dates can vary, it can be year on its own or Month, Day

I have decided to include the C# regexp's below to show, this can be adapted to suit your needs,

            private Regex ftpUnixListInfo = new Regex(
                @"(?" +
                @"(?[-|d|r|w|x]+)\s+" +
                @"(?\d+)\s*" +
                @"(?\w+)?\s+" +
                @"(?\w+)\s*" +
                @"(?\d+)\s+" +
                @"(?\w+)\s+" +
                @"(?\d{1,2})\s+" +
                @"(?:(?\d{2}\:\d{2})|(?\d{4}))\s+" +
                @"(?.+))",
                RegexOptions.IgnoreCase | RegexOptions.CultureInvariant | RegexOptions.IgnorePatternWhitespace
                | RegexOptions.Compiled);

            // Regex for Microsoft FTP Server
            private Regex ftpMsListInfo = new Regex(
                @"(?" +
                @"(?\d+-\d+-\d+)\s+" +
                @"(?\d+\:\d+(AM|PM))\s*" +
                @"(?((?\)|(?\d+))\s*)" +
                @"(?\w+))",
                RegexOptions.IgnoreCase | RegexOptions.CultureInvariant | RegexOptions.IgnorePatternWhitespace
                | RegexOptions.Compiled);

Notice the fact, there is no tab, it is purely spaces...and be careful, some FTP clients can read the listing as either MSDOS or Unix...