I tried to use sendfile() to send data from a tcp/ip socket to a file on
disk. This does not work, giving EINVAL.
Using the very fine kgdb product (http://kgdb.sourceforge.net) and my laptop
for remote debugging, I was able to trace this to this:
After some exploring with 'ddd' (a very nice graphical frontend for gdb,
which includes tools to display and traverse structs), I found that this
probably means that sendfile() can only be used to send files from
blockdevices which support mmap()-like functionality.
Is this correct? In that case, the wording of the manpage needs to be
changed, as it implies that 'either or both' of the filedescriptors can be
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This archive was generated by hypermail 2b29 : Thu Nov 23 2000 - 21:00:16 EST