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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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src | ||
ChangeLog | ||
COPYING | ||
INSTALL | ||
Makefile.am | ||
Makefile.in | ||
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 $