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43092b7d08
ftp(1) from vendor/tnftp always tried the following for
every TCP connection:
1. Get the current buffer length of SO_SNDBUF and SO_RCVBUF
by getsockopt(2).
2. Invoke setsockopt(2) to set them to the same values
after checking if they are in a range between 8 KiB to 8 MiB.
This behavior broke dynamic buffer sizing enabled by
default (net.inet.tcp.{recv,send}buf_auto sysctls) and
led to a very poor transfer rate. The fetch(1) utility
does not have this problem.
This change prevents SO_SNDBUF and SO_RCVBUF from configuring
when the buffer auto-sizing is enabled unless the buffer sizes are
explicitly specified.
PR: 240827
Spotted by: Yuichiro NAITO
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D23732
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| INSTALL | ||
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| NEWS | ||
| README | ||
| THANKS | ||
| tnftp.h | ||
| todo | ||
WHAT IS TNFTP? -------------- `tnftp' is a `port' of the NetBSD FTP client to other systems. See http://www.NetBSD.org/ for more details about NetBSD. tnftp was formerly known as `lukemftp' It was renamed to `tnftp' by Luke Mewburn in February 2003. The enhancements over the standard ftp client in 4.4BSD (and derivatives) include: * command-line editing within ftp * command-line fetching of URLS, including support for: - http proxies (see $http_proxy, $ftp_proxy) - authentication * configurable prompt * context sensitive command and filename completion * dynamic progress bar * feature negotiation extensions from RFC 2389 (see `feat' and `remopts') * extensions to ftp from the IETF ftpext working group (see `mlsd' and `mlst') * IPv6 support (from the WIDE project) * modification time preservation * paging of local and remote files, and of directory listings (see `lpage', `page', `pdir') * passive mode support, with fallback to active mode * retrieval of filenames listed in a given file (see `fget') * `set option' override of ftp environment variables * TIS Firewall Toolkit gate ftp proxy support (see `gate') * transfer-rate throttling (see `-T', `rate') * uploading of files on the command line (see `-u') * (Dante) SOCKS5 support Previous features, currently disabled until a test system is available: * SOCKS4 support INSTALLATION ------------ Refer to `INSTALL' for more information on how to compile and install tnftp. FEEDBACK / BUG REPORTS ---------------------- Please email feedback back to the maintainer: Luke Mewburn <lukem@NetBSD.org>. COPYRIGHT --------- tnftp is covered by a BSD-style copyright notice. Please refer to the file `COPYING' for more information. AVAILABILITY ------------ The primary ftp site for tnftp is: ftp://ftp.NetBSD.org/pub/NetBSD/misc/tnftp/ DOCUMENT REFERENCE ------------------ $NetBSD: README,v 1.10 2007/08/06 01:58:57 lukem Exp $