Well, I need to create BMP files with unique name, to be sent to lpr, then printed. Instead of using GetTempFileName, I'll use a GUID, with CreateGUID, and GUIDToString.
Leonardo M. Ramé http://leonardorame.blogspot.com --- On Tue, 10/5/10, ik <[email protected]> wrote: From: ik <[email protected]> Subject: Re: [fpc-pascal] GetTempFileName in Linux To: "FPC-Pascal users discussions" <[email protected]> Date: Tuesday, October 5, 2010, 2:26 PM On Tue, Oct 5, 2010 at 17:30, Sven Barth <[email protected]> wrote: Am 05.10.2010 17:20, schrieb Leonardo M. Ramé: Hi, if I run this program from command line in Linux, I allways get the same result, "/tmp/TMP00000.tmp". Shouldn't it return a different file name each time it's executed?. How can I get different file names? program tempfilename; uses sysutils; begin writeln(GetTempFileName); end. Did you delete the file after the run of your program? GetTempFileName always starts from 0 and checks whether that file already exists. If not, it returns that name else it continues increasing the index. That's a security risk, because it is very easy to know what will be the file name. It should return random name that does not exists on a random length (that the developer chooses). Symlink attack: http://www.infosecwriters.com/texts.php?op=display&id=159 for better understanding. Regards, Sven _______________________________________________ fpc-pascal maillist - [email protected] http://lists.freepascal.org/mailman/listinfo/fpc-pascal Ido -----Inline Attachment Follows----- _______________________________________________ fpc-pascal maillist - [email protected] http://lists.freepascal.org/mailman/listinfo/fpc-pascal
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