When using netcat to receive UDP packets (-u), it typically only receives a single packet before seemingly dropping all others. This seems more previlent if the payload is binary. This bug has been reported in the GNU bug database at http://sourceforge.net/tracker/?group_id=52204&atid=466046 but no one seems home. Reproducible: Sometimes Steps to Reproduce: 1. netcat -l -u -p 9999 | hexdump -C 2. netcat -u localhost 9999 < binary_file 3. notice that only a part of the file (typically one packet) has been received. Actual Results: The receiver received only a single UDP packet. Expected Results: It should of received many. Portage 2.0.51.19 (default-linux/x86/2005.0, gcc-3.3.5-20050130, glibc-2.3.4.20041102-r1, 2.6.11-gentoo-r8 i686) ================================================================= System uname: 2.6.11-gentoo-r8 i686 Intel(R) Pentium(R) M processor 1.70GHz Gentoo Base System version 1.6.12 Python: dev-lang/python-2.3.5 [2.3.5 (#1, Apr 27 2005, 17:23:04)] dev-lang/python: 2.3.5 sys-apps/sandbox: [Not Present] sys-devel/autoconf: 2.59-r6, 2.13 sys-devel/automake: 1.7.9-r1, 1.8.5-r3, 1.5, 1.4_p6, 1.6.3, 1.9.5 sys-devel/binutils: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.16 virtual/os-headers: 2.6.8.1-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-march=pentium4 -O2 -pipe -mmmx -msse2 -fomit-frame-pointer -fprefetch-loop-arrays " CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" CXXFLAGS="-march=pentium4 -O2 -pipe -mmmx -msse2 -fomit-frame-pointer -fprefetch-loop-arrays " DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://mirror.switch.ch/mirror/gentoo http://gentoo.osuosl.org http://www.ibiblio.org/pub/Linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X Xaw3d acpi aim alsa apm arts avi bash-completion berkdb bitmap-fonts bonobo bzlib cdr cjk crypt cups curl directfb divx4linux doc dvd dvdr dvdread eds emacs emboss encode esd ethereal exif fam fftw flac flash foomaticdb fortran ftp gb gd gdbm gif gmp gnome gphoto2 gpm gstreamer gtk gtk2 gtkhtml guile iconv imagemagick imap imlib ipv6 java jpeg junit kde lcms lesstif libg++ libwww mad mikmod milter mime ming mmx motif mozilla mp3 mpeg nas ncurses nls ogg oggvorbis openal opengl oss pam pdflib perl plotutils png pnp posix python quicktime readline ruby samba sasl sdl shared sndfile sockets spell sse ssl svga tcpd tetex theora tiff truetype truetype-fonts trusted type1-fonts unicode usb videos vorbis wmf wxwindows xml xml2 xmms xpm xv xvid zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS
i don't have that problem overhere w/ net-110-r6/r8 on x86
the package is 'gnu-netcat', not 'netcat' ;) nc -> 'netcat' netcat -> 'gnu-netcat'
confirmed, this worked the first time, then worked up to a certain point, all with the same file... Looks like upstream matter to me, unless someone can provide a fix.
