Re: Test for TCP port
I remember that I did look into Smallsockets, but never used it. But maybe perfect for you. HTH Op 9 apr 2011, om 05:04 heeft Heizer, Charles het volgende geschreven: Thanks, This is what I kind of suspected. Are there any wrappers around bsd socket to make it easier? Thanks, Charles On Apr 8, 2011, at 5:17 PM, Dave Carrigan wrote: On Apr 8, 2011, at 3:26 PM, Heizer, Charles wrote: What is the best way to test to see if a TCP port is reachable and will answer connections? I was trying to use NSSocketPort and NSConnection but I'm not getting a valid connection. You have to connect to it. Unfortunately, neither NSSocketPort nor NSConnection attempt to connect until you send data, so with those, you have no way of immediately knowing that anything is actually listening. The best way is to get down a level and use socket(2) and friends. -- Dave Carrigan d...@openshut.net Seattle, WA, USA -- Charles Heizer Systems Management Solutions Group Lawrence Livermore National Laboratory P: 925-422-0197 ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/appledev%40xs4all.nl This email sent to apple...@xs4all.nl ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Test for TCP port
Hello, What is the best way to test to see if a TCP port is reachable and will answer connections? I was trying to use NSSocketPort and NSConnection but I'm not getting a valid connection. Thanks, Charles NSSocketPort *sendPort = [[NSSocketPort alloc] initRemoteWithTCPPort:3600 host:@test.myhost.comhttp://test.myhost.com]; NSConnection *connection = [NSConnection connectionWithReceivePort:nil sendPort:sendPort]; [connection setRequestTimeout:10.0]; [connection setReplyTimeout:10.0]; NSLog(@theConnection 0x%X, connection); NSLog(@Connect is valid? %d, (int)[connection isValid]); ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Test for TCP port
On Fri, Apr 8, 2011 at 3:26 PM, Heizer, Charles heiz...@llnl.gov wrote: What is the best way to test to see if a TCP port is reachable and will answer connections? I was trying to use NSSocketPort and NSConnection but I'm not getting a valid connection. The *only* way to correctly determine if a TCP port can be connected is to attempt the connection. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Test for TCP port
On Fri, Apr 8, 2011 at 6:26 PM, Heizer, Charles heiz...@llnl.gov wrote: What is the best way to test to see if a TCP port is reachable and will answer connections? I was trying to use NSSocketPort and NSConnection but I'm not getting a valid connection. NSSocketPort *sendPort = [[NSSocketPort alloc] initRemoteWithTCPPort:3600 host:@test.myhost.comhttp://test.myhost.com]; That's not a valid host name. Try connecting to just @test.myhost.com instead. sherm-- -- Cocoa programming in Perl: http://camelbones.sourceforge.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Test for TCP port
On Apr 8, 2011, at 3:26 PM, Heizer, Charles wrote: What is the best way to test to see if a TCP port is reachable and will answer connections? I was trying to use NSSocketPort and NSConnection but I'm not getting a valid connection. You have to connect to it. Unfortunately, neither NSSocketPort nor NSConnection attempt to connect until you send data, so with those, you have no way of immediately knowing that anything is actually listening. The best way is to get down a level and use socket(2) and friends. -- Dave Carrigan d...@openshut.net Seattle, WA, USA ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Test for TCP port
Thanks, This is what I kind of suspected. Are there any wrappers around bsd socket to make it easier? Thanks, Charles On Apr 8, 2011, at 5:17 PM, Dave Carrigan wrote: On Apr 8, 2011, at 3:26 PM, Heizer, Charles wrote: What is the best way to test to see if a TCP port is reachable and will answer connections? I was trying to use NSSocketPort and NSConnection but I'm not getting a valid connection. You have to connect to it. Unfortunately, neither NSSocketPort nor NSConnection attempt to connect until you send data, so with those, you have no way of immediately knowing that anything is actually listening. The best way is to get down a level and use socket(2) and friends. -- Dave Carrigan d...@openshut.net Seattle, WA, USA -- Charles Heizer Systems Management Solutions Group Lawrence Livermore National Laboratory P: 925-422-0197 ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
