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Message-ID: | <055b01c33505$aecfabe0$0600000a@broadpark.no> |
From: | "Gisle Vanem" <giva AT bgnett DOT no> |
To: | "djgpp" <djgpp AT delorie DOT com> |
Subject: | Custom COFF-header |
Date: | Tue, 17 Jun 2003 21:21:41 +0200 |
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Reply-To: | djgpp AT delorie DOT com |
Is it possible to add custom fields to the COFF or stub.asm header without destroying anything (checksums etc.). Problem: I want to read N*512 blocks of an djgpp .exe-image from a tftp-server to a diskless (only RAM-disk) client. In order not to transfer the same image when not needed, I want to check against some timestamp and version info in COFF header. If they match, I terminated the tftp transfer and go on with my business. tftp is very simple udp based protocol which doesn't carry filetime very well :) As an alternative I though of using HTTP with ranges; i.e. read the last block only. I cannot use the HTTP "if-modified-since" header since the client-clock can be off by hours. Any ideas? Gisle V.
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