Re: 2.4 sendfile() not doing as manpage promises?

From: Dan Hollis (goemon@anime.net)
Date: Sat Nov 18 2000 - 18:15:28 EST


On Sun, 19 Nov 2000, bert hubert wrote:
> 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?

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 sockets.

Its quite clear.

DESCRIPTION
       This call copies data between file descriptor and another
       file descriptor or socket. in_fd should be a file
       descriptor opened for reading. out_fd should be a
       descriptor opened for writing or a connected socket.

in_fd must be a file, out_fd can be a file or socket.

-Dan

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