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* Support unix domain sockets in nc(1) with -Uu.jeremy2011-01-081-23/+67
| | | | | | | | | | | | | | | | | | | | | Previously, using -U with -u was an error that was not documented in the man page. Now it will use a unix socket in datagram mode. Bidirectional unix datagram communication requires a socket at both ends, so in client mode (without -l), a temporary socket is created so that responses from the server can be received. If -s is specified with -U and -u, it specifies the location of the temporary socket to create. This was mostly written way back in 2007. Since then, various improvements implemented based on suggestions from guenther@, tedu@, and nicm@. Man page help from nicm@ and jmc@. Unix datagram support requires a small change to atomicio.c in order to function correctly, this will be committed separately shortly. OK nicm@
* Fix the naming of interfaces and variables for rdomains and rtablesguenther2010-07-031-14/+14
| | | | | | | | | | | | and make it possible to bind sockets (including listening sockets!) to rtables and not just rdomains. This changes the name of the system calls, socket option, and ioctl. After building with this you should remove the files /usr/share/man/cat2/[gs]etrdomain.0. Since this removes the existing [gs]etrdomain() system calls, the libc major is bumped. Written by claudio@, criticized^Wcritiqued by me
* Bump the default buffer sizes to be larger than default MTUs, from Jannicm2010-04-201-5/+5
| | | | | | Zeleny. ok djm
* Allocate the port number properly (don't allocate space then ignore it),nicm2010-04-201-3/+2
| | | | | | and use %zu for size_t. ok djm
* Fix the atelnet() function, which was wrong in several ways.nicm2010-02-271-13/+13
| | | | | | Pointed out by obsd at happyjack.org, fix based on a diff from kili@. ok deraadt
* Do not write "Connection to ... succeeded" messages to stdout.mpf2009-10-081-3/+5
| | | | OK gilles, rainer, millert, deraadt.
* The networking swissarmy knife needs to work on alternate domains as well.claudio2009-06-051-4/+24
| | | | Again -V can be used to specify the domain.
* documentation tweaks; synchronize synopsis and usage.sobrado2008-09-191-5/+6
| | | | | | written with help by jmc@ ok jmc@
* try SO_BINDANY for -s, but do not insist; ok bob, reykmarkus2008-05-091-2/+4
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* allow setting of TCP send/receive buffer sizes; ok markus@djm2008-05-061-3/+30
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* usage(): add -P and tweak -X; from Igor Sobradojmc2007-02-201-3/+3
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* strtoul() -> strtonum(). Also change iflag to unsigned int, sinceray2006-06-021-23/+21
| | | | | | sleep takes an unsigned integer. OK moritz@, jaredy@, and dhill@
* remove obsolete code; from Ray Lai in PR 4998; ok tedu@ beck@otto2006-02-011-8/+1
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* implement HTTP proxy authentication support, very useful in a ssh_configdjm2006-01-251-5/+11
| | | | ProxyCommand; ok beck@
* Explicitly include limits.h if we are going to use its contents.millert2006-01-201-1/+2
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* Make set_common_sockopts() a void since it doesn't return anything anyway.dtucker2005-10-251-3/+3
| | | | Makes netcat -Wall clean. ok djm@
* Add a -T option to nc to allow setting of IP type-of-service bits ondtucker2005-10-251-3/+33
| | | | connections. Man page corrections jmc@, code corrections and ok djm@
* correct rval check for socket(). from alf schlichting. ok markus@marius2005-07-241-2/+2
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* set jumbo flag on the listener, too. consolidate some common code.marius2005-05-281-28/+29
| | | | ok mcbride@
* Experimental support for opportunitic use of jumbograms where only some hostsmcbride2005-05-271-8/+22
| | | | | | | | | | | | | | on the local network support them. This adds a new socket option, SO_JUMBO, and a new route flag, RTF_JUMBO. If _both_ the socket option is set and the route for the host has RTF_JUMBO set, ip_output will fragment the packet to the largest possible size for the link, ignoring the card's MTU. The semantics of this feature will be evolving rapidly; talk to us if you intend to use it. ok deraadt@ marius@
* Switch atomicio to a simpler interface which returns size_t and usesavsm2005-05-241-10/+7
| | | | | | | 0 to signal errors. should be no functional change in nc apart from different error messages. "groovy", said deraadt@
* Initialize len before calling accept(2). from mpech@, ok millert@otto2005-04-101-1/+2
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* Some extra strict warning cleanup. From Xin Li <delphij at FreeBSDotto2005-02-081-5/+5
| | | | dot ORG> with a twist from myself. No binary change. ok djm@
* provide a valid sockaddr_storage structure to be used as second argument forhshoexer2004-12-101-2/+2
| | | | | | accept(2) ok djm markus
* http proxy CONNECT support; ok beck@djm2004-10-171-7/+12
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* remove return error variables.. set but never usedderaadt2004-09-151-15/+11
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* add -D for sodebug; ok deraadt, jmcmarkus2004-07-151-3/+18
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* add keeps to SYNOPSIS and sync usage();jmc2004-03-121-4/+4
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* Print error when connect() fails. ok markus@ deraadt@mcbride2004-03-071-1/+4
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* spaces, was reading code..deraadt2004-03-031-4/+4
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* add -d to usage too, from carson hardingtedu2004-03-031-2/+3
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* resolve pr3694. add -d [etached] to ignore stdin. ok henning@ mcbride@tedu2004-03-011-4/+8
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* - sort options and SYNOPSISjmc2004-02-201-30/+30
| | | | | | | | | | - better document which options do/don't work together - add sections showing some possible uses of nc - code (comment) typos - sync usage() and help suggestions/improvements from otto@ ok deraadt@
* rename tcp sockopt TCP_SIGNATURE_ENABLE to TCP_MD5SIGhenning2004-01-311-3/+3
| | | | | requested by theo ok markus@ hshoexer@
* -S enables tcp md5 signature option; ok deraadt@, mcbride@markus2004-01-221-4/+21
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* check alloca; pointed out by nimadeus@pandora.bederaadt2003-10-191-2/+3
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* Off-by-ones, from aaron@miod2003-09-221-2/+2
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* Kill dead code after errx(). From Andrey Matveev; ericj@ OKmillert2003-07-251-5/+2
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* protosderaadt2003-07-071-2/+1
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* in the unix domain socket case, give an ENAMETOOLONG error instead ofavsm2003-07-071-3/+17
| | | | | silently truncating the socket file millert@ ok
* more proto fixesderaadt2003-06-261-5/+11
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* mostly ansi cleanup; pval okderaadt2003-06-101-2/+2
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* use err vs. errx and display function; from Owl. ok fgsch@stevesk2002-12-301-4/+4
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* include function in error; from Owl. ok fgsch@stevesk2002-12-301-4/+4
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* fix calloc's. also check for errors; fixes PR/3043.fgsch2002-12-281-5/+10
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* Recent modifications to netcat changed the behaviour to only exit when bothaaron2002-12-131-2/+2
| | | | | | the read (network) and write (stdin) ends of the socket were both closed. This is not how nc traditionally works. Instead, revert back to finishing up when read() on the socket returns 0; deraadt@, vincent@ ok.
* update usage; ok ericj@markus2002-11-131-3/+4
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* correct handling of EOF on both tty input and network. for example,vincent2002-07-041-11/+15
| | | | | | | this allows stuff like nc -l 10101 < /dev/null to have nc exit automatically when it gets EOF from the network. ok ericj@
* define SUN_LEN if it is not already for portability.vincent2002-07-011-1/+6
| | | | millert made the same suggestion, so i guess it's ok ;)
* use SUN_LEN to calculate AF_UNIX sockaddr's length. + some stylevincent2002-07-011-22/+18
| | | | ok ericj@