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Posted to apache-bugdb@apache.org by John Hawthorne <ha...@cs.ubc.ca> on 1997/11/21 21:56:46 UTC
mod_negotiation/1452: Failure of binary file downloads
>Number: 1452
>Category: mod_negotiation
>Synopsis: Failure of binary file downloads
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: apache
>State: open
>Class: sw-bug
>Submitter-Id: apache
>Arrival-Date: Fri Nov 21 14:10:00 PST 1997
>Last-Modified:
>Originator: hawthorn@cs.ubc.ca
>Organization:
apache
>Release: 1.3b2
>Environment:
WinNT, Netscape Navigator Gold 3.01
>Description:
I am using the following perl (5.0) code to cause a file to be downloaded
via a CGI script:
print "Content-Type: application/unknown\n";
print "Content-Disposition: attachment; filename=$file\n\n";
open(DOWNLOAD, $file);
while($bytes = <DOWNLOAD>) {
print STDOUT $bytes;
}
close DOWNLOAD;
I have also tried using read() and sysread()/syswrite() versions of the code.
1. Text files lose a character for each CRLF.
2. Binary files abort/fail/finish when they encounter ^Z (ascii 26).
>How-To-Repeat:
Download any file using similar code.
>Fix:
1. Text files: set DOWNLOAD to binary mode transfer and STDOUT to ascii mode transfer.
i.e. use "binmode DOWNLOAD;" after the open() command.
2. Binary files: nothing works..
>Audit-Trail:
>Unformatted:
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