Re: [iPhone] networking
How does Bonjour handle the task of introducing 2 iPhones (located in 2 parts of the world) to each other? The documentations i've found so far all point to Bonjour working on local network only, (even on Apple's website). Can you please point me to the documentation where it explains how Bonjour works over the internet? My goal: 1. 1 iPhone running my app working as a server waiting for connection from another iPhone from the internet. 2. Another iPhone running my app working as a client connects to the server iPhone and send a string hi, I am James. 3. The server iPhone, upon receiving this string reply with user's choice of either String A or String B back to the client iPhone. From the comment below...if an iPhone is never going to have a public IP address... How do I make 1 iPhone connect to another? Sorry for the repeating question...I am just getting more and more confused instead so far... Thank you in advance... James On 2009/8/5, at 上午 2:13, Luke the Hiesterman wrote: On Aug 4, 2009, at 11:10 AM, James Lin wrote: Bonjour is for local area network, right? No, Bonjour is applicable to any networking, local or wide area. Here's some sample code. http://developer.apple.com/iphone/library/samplecode/BonjourWeb/index.html Luke On 2009/8/6, at 上午 7:58, glenn andreas wrote: On Aug 4, 2009, at 4:42 PM, Shawn Erickson wrote: On Tue, Aug 4, 2009 at 11:13 AM, Luke the Hiestermanluket...@apple.com wrote: On Aug 4, 2009, at 11:10 AM, James Lin wrote: Bonjour is for local area network, right? No, Bonjour is applicable to any networking, local or wide area. Here's some sample code. http://developer.apple.com/iphone/library/samplecode/BonjourWeb/index.html Well ad-hoc discovery only works on the local sub-net or across bridged sub-nets. To do service discovery across sub-nets would require a known DNS server publishing the existence of services and how to contact them via public IP addresses. Of course, in the context of the original question (re: iPhone networking), the iPhone is almost never going to have a public IP address (being hidden behind WiFi or cell phone NATs). Glenn Andreas gandr...@gandreas.com http://www.gandreas.com/ wicked fun! Mad, Bad, and Dangerous to Know ___ 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: [iPhone] networking
My goal: 1. 1 iPhone running my app working as a server waiting for connection from another iPhone from the internet. 2. Another iPhone running my app working as a client connects to the server iPhone and send a string hi, I am James. 3. The server iPhone, upon receiving this string reply with user's choice of either String A or String B back to the client iPhone. From the comment below...if an iPhone is never going to have a public IP address... How do I make 1 iPhone connect to another? You basically can't, and people have been trying to tell you this for some time now, most of the replies to your questions have said exactly that, you can't network through NAT, phones don't have public IP addresses, or they rarely do. So, if I cannot make 2 iPhones talk to each other, but I have a php/ mysql server. Can my other option be the following? 1. iPhone A post the message Hi, I am James to the php/mysql server and specifies the message is for iPhone B. 2. iPhone B running my app keeps querrying the php/mysql server for message left for it with a querry to php/mysql server inside a NSTimer (say querry once every 30 seconds). 3. iPhone B, upon getting a result that there is a message from iPhone B, do whatever it needs to do and post the reply back to the php/mysql server. 4. iPhone A, inside a NSTimer, querrys the php/mysql server for result of the original posting from B. Is this my best option given what I want to accomplish? Thanks in advance... James ___ 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: [iPhone] networking
On 6 Aug 2009, at 09:13, Roland King wrote: I've never seen any. I assume that as well as multicast dns there are ways to configure bonjour to point to some central DNS server which would enable something like that to work Yes, you can use regular unicast DNS, and query a specified DNS server for SRV records. Keith ___ 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: [iPhone] networking
On 6 Aug 2009, at 09:27, James Lin wrote: [...] keeps querrying the php/mysql server for message left for it with a querry to php/mysql server inside a NSTimer (say querry once every 30 seconds). [...] Is this my best option given what I want to accomplish? I'm afraid it isn't, polling a server is a pretty bad idea, on the iPhone in particular; it will drain the battery quickly. It sounds like you need some kind of messaging server, to which the clients maintain a persistent connection. Keith ___ 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: [iPhone] networking
Can you please elaborate a bit more? What technology option do I have when it comes to a messaging server? What's involved on the iPhone's side? Thank you in advance... James On 2009/8/6, at 下午 4:33, Keith Duncan wrote: On 6 Aug 2009, at 09:27, James Lin wrote: [...] keeps querrying the php/mysql server for message left for it with a querry to php/mysql server inside a NSTimer (say querry once every 30 seconds). [...] Is this my best option given what I want to accomplish? I'm afraid it isn't, polling a server is a pretty bad idea, on the iPhone in particular; it will drain the battery quickly. It sounds like you need some kind of messaging server, to which the clients maintain a persistent connection. Keith ___ 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: [iPhone] networking
On 6 Aug 2009, at 09:27, James Lin wrote: Is this my best option given what I want to accomplish? Thanks in advance... Stepping back a little bit. Are you trying to build some sort of real time messaging service? Or does it matter if the second phone doesn't receive the message straight away? Have you considered sending an SMS message from one phone to the other? Actually scratch that, there's no official iPhone SMS API according to Google. Or what about setting up a mail server? iPhone 1 sends the message using SMTP and iPhone 2 retrieves it using IMAP. James ___ 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/adc%40jeremyp.net This email sent to a...@jeremyp.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: [iPhone] networking
well...I guess you can call it some sort of real time messaging service... I just need to send a string from iPhoneA to iPhoneB. And allow iPhoneB to reply with another string back to iPhoneA. That's all I am trying to do. I had no idea it is so difficult and involves so much. given my state of confusion right now, any suggestion you can give me is much appreciated... Thanx in advance... James On 2009/8/6, at 下午 10:18, Jeremy Pereira wrote: On 6 Aug 2009, at 09:27, James Lin wrote: Is this my best option given what I want to accomplish? Thanks in advance... Stepping back a little bit. Are you trying to build some sort of real time messaging service? Or does it matter if the second phone doesn't receive the message straight away? Have you considered sending an SMS message from one phone to the other? Actually scratch that, there's no official iPhone SMS API according to Google. Or what about setting up a mail server? iPhone 1 sends the message using SMTP and iPhone 2 retrieves it using IMAP. James ___ 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/adc%40jeremyp.net This email sent to a...@jeremyp.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: [iPhone] networking
On Aug 4, 2009, at 4:42 PM, Shawn Erickson wrote: On Tue, Aug 4, 2009 at 11:13 AM, Luke the Hiestermanluket...@apple.com wrote: On Aug 4, 2009, at 11:10 AM, James Lin wrote: Bonjour is for local area network, right? No, Bonjour is applicable to any networking, local or wide area. Here's some sample code. http://developer.apple.com/iphone/library/samplecode/BonjourWeb/index.html Well ad-hoc discovery only works on the local sub-net or across bridged sub-nets. To do service discovery across sub-nets would require a known DNS server publishing the existence of services and how to contact them via public IP addresses. Of course, in the context of the original question (re: iPhone networking), the iPhone is almost never going to have a public IP address (being hidden behind WiFi or cell phone NATs). Glenn Andreas gandr...@gandreas.com http://www.gandreas.com/ wicked fun! Mad, Bad, and Dangerous to Know ___ 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: [iPhone] networking
On Aug 4, 2009, at 4:42 PM, Shawn Erickson wrote: Of course, in the context of the original question (re: iPhone networking), the iPhone is almost never going to have a public IP address (being hidden behind WiFi or cell phone NATs). Assuming cell carriers don't get off their butts and implement IPv6. There's no guarantee of that, especially if China gets the iPhone. --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: [iPhone] networking
Just brainstorming theory here, but it might be made much easier if you had a server act as an intermediary, even if all that server does is 'introduce' the two iphones to each other. Bryan McLemore Kaelten On Tue, Aug 4, 2009 at 1:10 PM, James Linjamesclin...@gmail.com wrote: Correct me if I am wrong...but from what i have read so far... Bonjour is for local area network, right? What I am trying to do is to get 2 iPhones located in 2 different part of the world to connect to each other on the internet. Can Bonjour work? Thanx in advance... James On 2009/8/5, at 上午 2:02, glenn andreas wrote: On Aug 4, 2009, at 12:49 PM, James Lin wrote: I am trying to make the iPhone a server and a client at the same time... What I am trying to accomplish... 1. iPhone running my application opens a server socket and listens for incoming network connection from another iPhone running the same application. 2. The server socket has an ip address that i can register with my php/mysql server. 3. Another iPhone running my same app acts as the client gets the iPhone server's ip address from the server and make connection to the server iPhone. 4. The client iPhone sends a string hello, I am James to the server iPhone and the server iPhone reply with the user's choice of either Hi, Nice to meet you or Get lost! strings. Unless the two phones are on the same local WiFi network, due to the way that various NATs (especially with cell phone networking), a client will almost certainly not be able to connect to a server running on the phone. Basically, the phone see only a local (private) network, and will have an address such as 10.3.5.12. Unfortunately, that IP address is meaningless outside of local network (there is no way for a remote phone, which may have the exact same address, to find 10.3.5.12 as being your local phone). Given that trying to support phone based servers isn't going to work except for within the same WiFi network, you might as well instead use Bonjour for one phone to discover the other phone (which will automatically handle finding/resolving/advertising ip address/ports). Glenn Andreas gandr...@gandreas.com http://www.gandreas.com/ wicked fun! Mad, Bad, and Dangerous to Know ___ 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/kaelten%40gmail.com This email sent to kael...@gmail.com ___ 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
[iPhone] networking-is it crippled on the simulator?
Hi all, Does anyone know the limitation of the iPhone simulator when it comes to networking? Is it crippled on the simulator? I've tried two seperate ways of opening up a server socket. 1. is by opening up a CFSocket 2. is by a socket wrapper class called LXSocket class obtained from google codes. but i've so far failed to obtain the ip address of the server socket. the CFSocket method returned the ip address as 0.0.0.0 the LXSocket class returned the ip address as a Null object. I am wondering, if there is a limitation of some kind that's limiting the networking functionality on the simulator. Does anyone know? Thank you... James ___ 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: [iPhone] networking-is it crippled on the simulator?
On Aug 4, 2009, at 5:43 AM, James Lin wrote: Hi all, Does anyone know the limitation of the iPhone simulator when it comes to networking? Is it crippled on the simulator? I've tried two seperate ways of opening up a server socket. 1. is by opening up a CFSocket 2. is by a socket wrapper class called LXSocket class obtained from google codes. but i've so far failed to obtain the ip address of the server socket. the CFSocket method returned the ip address as 0.0.0.0 the LXSocket class returned the ip address as a Null object. I am wondering, if there is a limitation of some kind that's limiting the networking functionality on the simulator. Does anyone know? Safari works for me on the simulator, so it's got to have communications. Does the same code work if you load it on your phone? -jcr ___ 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: [iPhone] networking-is it crippled on the simulator?
Safari works for me too... The reason I am asking this seemingly redundant question is simply : I don't have an iPhone yet (3GS won't be available in my country until end of Aug) and I am doing all my programming blind on the simulator. if networking is crippled on the simulator, that means my development work has to take a break until I get my hands on an actual iPhone.. Does anyone know? Thank you in advance... James On 2009/8/4, at 下午 9:04, John C. Randolph wrote: On Aug 4, 2009, at 5:43 AM, James Lin wrote: Hi all, Does anyone know the limitation of the iPhone simulator when it comes to networking? Is it crippled on the simulator? I've tried two seperate ways of opening up a server socket. 1. is by opening up a CFSocket 2. is by a socket wrapper class called LXSocket class obtained from google codes. but i've so far failed to obtain the ip address of the server socket. the CFSocket method returned the ip address as 0.0.0.0 the LXSocket class returned the ip address as a Null object. I am wondering, if there is a limitation of some kind that's limiting the networking functionality on the simulator. Does anyone know? Safari works for me on the simulator, so it's got to have communications. Does the same code work if you load it on your phone? -jcr ___ 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: [iPhone] networking-is it crippled on the simulator?
it is not crippled On Aug 4, 2009, at 9:48 PM, James Lin wrote: Safari works for me too... The reason I am asking this seemingly redundant question is simply : I don't have an iPhone yet (3GS won't be available in my country until end of Aug) and I am doing all my programming blind on the simulator. if networking is crippled on the simulator, that means my development work has to take a break until I get my hands on an actual iPhone.. Does anyone know? Thank you in advance... James On 2009/8/4, at 下午 9:04, John C. Randolph wrote: On Aug 4, 2009, at 5:43 AM, James Lin wrote: Hi all, Does anyone know the limitation of the iPhone simulator when it comes to networking? Is it crippled on the simulator? I've tried two seperate ways of opening up a server socket. 1. is by opening up a CFSocket 2. is by a socket wrapper class called LXSocket class obtained from google codes. but i've so far failed to obtain the ip address of the server socket. the CFSocket method returned the ip address as 0.0.0.0 the LXSocket class returned the ip address as a Null object. I am wondering, if there is a limitation of some kind that's limiting the networking functionality on the simulator. Does anyone know? Safari works for me on the simulator, so it's got to have communications. Does the same code work if you load it on your phone? -jcr ___ 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/rols%40rols.org This email sent to r...@rols.org ___ 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: [iPhone] networking-is it crippled on the simulator?
Networking should work on the simulator. There are several networking related pieces of sample code that work on the simulator. http://developer.apple.com/iphone/library/navigation/SampleCode.html Luke On Aug 4, 2009, at 6:48 AM, James Lin wrote: Safari works for me too... The reason I am asking this seemingly redundant question is simply : I don't have an iPhone yet (3GS won't be available in my country until end of Aug) and I am doing all my programming blind on the simulator. if networking is crippled on the simulator, that means my development work has to take a break until I get my hands on an actual iPhone.. Does anyone know? Thank you in advance... James On 2009/8/4, at 下午 9:04, John C. Randolph wrote: On Aug 4, 2009, at 5:43 AM, James Lin wrote: Hi all, Does anyone know the limitation of the iPhone simulator when it comes to networking? Is it crippled on the simulator? I've tried two seperate ways of opening up a server socket. 1. is by opening up a CFSocket 2. is by a socket wrapper class called LXSocket class obtained from google codes. but i've so far failed to obtain the ip address of the server socket. the CFSocket method returned the ip address as 0.0.0.0 the LXSocket class returned the ip address as a Null object. I am wondering, if there is a limitation of some kind that's limiting the networking functionality on the simulator. Does anyone know? Safari works for me on the simulator, so it's got to have communications. Does the same code work if you load it on your phone? -jcr ___ 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/luketheh%40apple.com This email sent to luket...@apple.com ___ 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: [iPhone] networking-is it crippled on the simulator?
On Aug 4, 2009, at 5:43 AM, James Lin wrote: Hi all, Does anyone know the limitation of the iPhone simulator when it comes to networking? Is it crippled on the simulator? I've tried two seperate ways of opening up a server socket. By server socket, do you mean you are trying to connect to a server somewhere, or that you are trying to open a low numbered (i.e. 1024) port locally so that you can be a server? The simulator cannot open low numbered ports for inbound connections but iPhones running OS 3.0 and later can. Dave ___ 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: [iPhone] networking
I am trying to make the iPhone a server and a client at the same time... What I am trying to accomplish... 1. iPhone running my application opens a server socket and listens for incoming network connection from another iPhone running the same application. 2. The server socket has an ip address that i can register with my php/mysql server. 3. Another iPhone running my same app acts as the client gets the iPhone server's ip address from the server and make connection to the server iPhone. 4. The client iPhone sends a string hello, I am James to the server iPhone and the server iPhone reply with the user's choice of either Hi, Nice to meet you or Get lost! strings. ps. the port number i chose was 2048 This is all i am trying to accomplish, but i am making slow progress and banging my head against the wall... Any ideas/suggestions are greatly appreciated... Thanx again... James On 2009/8/4, at 下午 11:50, Dave Camp wrote: On Aug 4, 2009, at 5:43 AM, James Lin wrote: Hi all, Does anyone know the limitation of the iPhone simulator when it comes to networking? Is it crippled on the simulator? I've tried two seperate ways of opening up a server socket. By server socket, do you mean you are trying to connect to a server somewhere, or that you are trying to open a low numbered (i.e. 1024) port locally so that you can be a server? The simulator cannot open low numbered ports for inbound connections but iPhones running OS 3.0 and later can. Dave ___ 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: [iPhone] networking
Have you tried using CFHost to get your IP? Luke On Aug 4, 2009, at 10:49 AM, James Lin wrote: I am trying to make the iPhone a server and a client at the same time... What I am trying to accomplish... 1. iPhone running my application opens a server socket and listens for incoming network connection from another iPhone running the same application. 2. The server socket has an ip address that i can register with my php/mysql server. 3. Another iPhone running my same app acts as the client gets the iPhone server's ip address from the server and make connection to the server iPhone. 4. The client iPhone sends a string hello, I am James to the server iPhone and the server iPhone reply with the user's choice of either Hi, Nice to meet you or Get lost! strings. ps. the port number i chose was 2048 This is all i am trying to accomplish, but i am making slow progress and banging my head against the wall... Any ideas/suggestions are greatly appreciated... Thanx again... James On 2009/8/4, at 下午 11:50, Dave Camp wrote: On Aug 4, 2009, at 5:43 AM, James Lin wrote: Hi all, Does anyone know the limitation of the iPhone simulator when it comes to networking? Is it crippled on the simulator? I've tried two seperate ways of opening up a server socket. By server socket, do you mean you are trying to connect to a server somewhere, or that you are trying to open a low numbered (i.e. 1024) port locally so that you can be a server? The simulator cannot open low numbered ports for inbound connections but iPhones running OS 3.0 and later can. Dave ___ 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/luketheh%40apple.com This email sent to luket...@apple.com ___ 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: [iPhone] networking
On Aug 4, 2009, at 12:49 PM, James Lin wrote: I am trying to make the iPhone a server and a client at the same time... What I am trying to accomplish... 1. iPhone running my application opens a server socket and listens for incoming network connection from another iPhone running the same application. 2. The server socket has an ip address that i can register with my php/mysql server. 3. Another iPhone running my same app acts as the client gets the iPhone server's ip address from the server and make connection to the server iPhone. 4. The client iPhone sends a string hello, I am James to the server iPhone and the server iPhone reply with the user's choice of either Hi, Nice to meet you or Get lost! strings. Unless the two phones are on the same local WiFi network, due to the way that various NATs (especially with cell phone networking), a client will almost certainly not be able to connect to a server running on the phone. Basically, the phone see only a local (private) network, and will have an address such as 10.3.5.12. Unfortunately, that IP address is meaningless outside of local network (there is no way for a remote phone, which may have the exact same address, to find 10.3.5.12 as being your local phone). Given that trying to support phone based servers isn't going to work except for within the same WiFi network, you might as well instead use Bonjour for one phone to discover the other phone (which will automatically handle finding/resolving/advertising ip address/ports). Glenn Andreas gandr...@gandreas.com http://www.gandreas.com/ wicked fun! Mad, Bad, and Dangerous to Know ___ 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: [iPhone] networking
I am not using CFHost...
I use the CFSocketCopyAddress() on a CFSocketRef (my server socket)
called TCPServer.
CFDataRef serverAddressData = CFSocketCopyAddress(TCPServer);
NSString *serverAddressString;
serverAddressString = [NSString stringWithFormat: @%@, [self
addressHost:serverAddressData]];
NSLog(@Server started at %@, serverAddressString);
and the addressHost function to return the ip address as follows:
- (NSString *) addressHost: (CFDataRef)cfaddr
{
if (cfaddr == NULL) return nil;
char addrBuf[ MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) ];
struct sockaddr *pSockAddr = (struct sockaddr *) CFDataGetBytePtr
(cfaddr);
struct sockaddr_in *pSockAddrV4 = (struct sockaddr_in *) pSockAddr;
struct sockaddr_in6 *pSockAddrV6 = (struct sockaddr_in6 *)pSockAddr;
const void *pAddr = (pSockAddr-sa_family == AF_INET) ?
(void *)((pSockAddrV4-sin_addr)) :
(void *)((pSockAddrV6-sin6_addr));
const char *pStr = inet_ntop (pSockAddr-sa_family, pAddr, addrBuf,
sizeof(addrBuf));
if (pStr == NULL) [NSException raise: NSInternalInconsistencyException
format: @Cannot
convert address to string.];
return [NSString stringWithCString:pStr
encoding:NSASCIIStringEncoding];
}
The NSLog result is : Server started at 0.0.0.0
Any ideas?
Thanx in advance...
James
On 2009/8/5, at 上午 1:52, Luke the Hiesterman wrote:
Have you tried using CFHost to get your IP?
Luke
On Aug 4, 2009, at 10:49 AM, James Lin wrote:
I am trying to make the iPhone a server and a client at the same
time...
What I am trying to accomplish...
1. iPhone running my application opens a server socket and
listens for incoming network connection from another iPhone running
the same application.
2. The server socket has an ip address that i can register with
my php/mysql server.
3. Another iPhone running my same app acts as the client gets the
iPhone server's ip address from the server and make connection to
the server iPhone.
4. The client iPhone sends a string hello, I am James to the
server iPhone and the server iPhone reply with the user's choice of
either Hi, Nice to meet you or Get lost! strings.
ps. the port number i chose was 2048
This is all i am trying to accomplish, but i am making slow
progress and banging my head against the wall...
Any ideas/suggestions are greatly appreciated...
Thanx again...
James
On 2009/8/4, at 下午 11:50, Dave Camp wrote:
On Aug 4, 2009, at 5:43 AM, James Lin wrote:
Hi all,
Does anyone know the limitation of the iPhone simulator when it
comes to networking?
Is it crippled on the simulator?
I've tried two seperate ways of opening up a server socket.
By server socket, do you mean you are trying to connect to a
server somewhere, or that you are trying to open a low numbered
(i.e. 1024) port locally so that you can be a server?
The simulator cannot open low numbered ports for inbound
connections but iPhones running OS 3.0 and later can.
Dave
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Re: [iPhone] networking
It looks like you're asking for the IP address from a socket before
you've given it an IP. As someone said earlier, you have to bind an IP
address to a socket - it doesn't just come out of thin air.
Luke
On Aug 4, 2009, at 11:07 AM, James Lin wrote:
I am not using CFHost...
I use the CFSocketCopyAddress() on a CFSocketRef (my server socket)
called TCPServer.
CFDataRef serverAddressData = CFSocketCopyAddress(TCPServer);
NSString *serverAddressString;
serverAddressString = [NSString stringWithFormat: @%@, [self
addressHost:serverAddressData]];
NSLog(@Server started at %@, serverAddressString);
and the addressHost function to return the ip address as follows:
- (NSString *) addressHost: (CFDataRef)cfaddr
{
if (cfaddr == NULL) return nil;
char addrBuf[ MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) ];
struct sockaddr *pSockAddr = (struct sockaddr *) CFDataGetBytePtr
(cfaddr);
struct sockaddr_in *pSockAddrV4 = (struct sockaddr_in *) pSockAddr;
struct sockaddr_in6 *pSockAddrV6 = (struct sockaddr_in6 *)pSockAddr;
const void *pAddr = (pSockAddr-sa_family == AF_INET) ?
(void *)((pSockAddrV4-sin_addr)) :
(void *)((pSockAddrV6-sin6_addr));
const char *pStr = inet_ntop (pSockAddr-sa_family, pAddr, addrBuf,
sizeof(addrBuf));
if (pStr == NULL) [NSException raise:
NSInternalInconsistencyException
format: @Cannot
convert address to string.];
return [NSString stringWithCString:pStr
encoding:NSASCIIStringEncoding];
}
The NSLog result is : Server started at 0.0.0.0
Any ideas?
Thanx in advance...
James
On 2009/8/5, at 上午 1:52, Luke the Hiesterman wrote:
Have you tried using CFHost to get your IP?
Luke
On Aug 4, 2009, at 10:49 AM, James Lin wrote:
I am trying to make the iPhone a server and a client at the same
time...
What I am trying to accomplish...
1. iPhone running my application opens a server socket and
listens for incoming network connection from another iPhone
running the same application.
2. The server socket has an ip address that i can register with
my php/mysql server.
3. Another iPhone running my same app acts as the client gets the
iPhone server's ip address from the server and make connection to
the server iPhone.
4. The client iPhone sends a string hello, I am James to the
server iPhone and the server iPhone reply with the user's choice
of either Hi, Nice to meet you or Get lost! strings.
ps. the port number i chose was 2048
This is all i am trying to accomplish, but i am making slow
progress and banging my head against the wall...
Any ideas/suggestions are greatly appreciated...
Thanx again...
James
On 2009/8/4, at 下午 11:50, Dave Camp wrote:
On Aug 4, 2009, at 5:43 AM, James Lin wrote:
Hi all,
Does anyone know the limitation of the iPhone simulator when it
comes to networking?
Is it crippled on the simulator?
I've tried two seperate ways of opening up a server socket.
By server socket, do you mean you are trying to connect to a
server somewhere, or that you are trying to open a low numbered
(i.e. 1024) port locally so that you can be a server?
The simulator cannot open low numbered ports for inbound
connections but iPhones running OS 3.0 and later can.
Dave
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Re: [iPhone] networking
Correct me if I am wrong...but from what i have read so far... Bonjour is for local area network, right? What I am trying to do is to get 2 iPhones located in 2 different part of the world to connect to each other on the internet. Can Bonjour work? Thanx in advance... James On 2009/8/5, at 上午 2:02, glenn andreas wrote: On Aug 4, 2009, at 12:49 PM, James Lin wrote: I am trying to make the iPhone a server and a client at the same time... What I am trying to accomplish... 1. iPhone running my application opens a server socket and listens for incoming network connection from another iPhone running the same application. 2. The server socket has an ip address that i can register with my php/mysql server. 3. Another iPhone running my same app acts as the client gets the iPhone server's ip address from the server and make connection to the server iPhone. 4. The client iPhone sends a string hello, I am James to the server iPhone and the server iPhone reply with the user's choice of either Hi, Nice to meet you or Get lost! strings. Unless the two phones are on the same local WiFi network, due to the way that various NATs (especially with cell phone networking), a client will almost certainly not be able to connect to a server running on the phone. Basically, the phone see only a local (private) network, and will have an address such as 10.3.5.12. Unfortunately, that IP address is meaningless outside of local network (there is no way for a remote phone, which may have the exact same address, to find 10.3.5.12 as being your local phone). Given that trying to support phone based servers isn't going to work except for within the same WiFi network, you might as well instead use Bonjour for one phone to discover the other phone (which will automatically handle finding/resolving/advertising ip address/ports). Glenn Andreas gandr...@gandreas.com http://www.gandreas.com/ wicked fun! Mad, Bad, and Dangerous to Know ___ 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: [iPhone] networking
I did call CFSocketSetAddress in my socket setup code to bind an IP
address to a socket before the above code asking for ip...
Thanx in advance...
James
On 2009/8/5, at 上午 2:09, Luke the Hiesterman wrote:
It looks like you're asking for the IP address from a socket before
you've given it an IP. As someone said earlier, you have to bind an
IP address to a socket - it doesn't just come out of thin air.
Luke
On Aug 4, 2009, at 11:07 AM, James Lin wrote:
I am not using CFHost...
I use the CFSocketCopyAddress() on a CFSocketRef (my server socket)
called TCPServer.
CFDataRef serverAddressData = CFSocketCopyAddress(TCPServer);
NSString *serverAddressString;
serverAddressString = [NSString stringWithFormat: @%@, [self
addressHost:serverAddressData]];
NSLog(@Server started at %@, serverAddressString);
and the addressHost function to return the ip address as follows:
- (NSString *) addressHost: (CFDataRef)cfaddr
{
if (cfaddr == NULL) return nil;
char addrBuf[ MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) ];
struct sockaddr *pSockAddr = (struct sockaddr *) CFDataGetBytePtr
(cfaddr);
struct sockaddr_in *pSockAddrV4 = (struct sockaddr_in *) pSockAddr;
struct sockaddr_in6 *pSockAddrV6 = (struct sockaddr_in6 *)pSockAddr;
const void *pAddr = (pSockAddr-sa_family == AF_INET) ?
(void *)((pSockAddrV4-sin_addr)) :
(void *)((pSockAddrV6-sin6_addr));
const char *pStr = inet_ntop (pSockAddr-sa_family, pAddr,
addrBuf, sizeof(addrBuf));
if (pStr == NULL) [NSException raise:
NSInternalInconsistencyException
format: @Cannot
convert address to string.];
return [NSString stringWithCString:pStr
encoding:NSASCIIStringEncoding];
}
The NSLog result is : Server started at 0.0.0.0
Any ideas?
Thanx in advance...
James
On 2009/8/5, at 上午 1:52, Luke the Hiesterman wrote:
Have you tried using CFHost to get your IP?
Luke
On Aug 4, 2009, at 10:49 AM, James Lin wrote:
I am trying to make the iPhone a server and a client at the same
time...
What I am trying to accomplish...
1. iPhone running my application opens a server socket and
listens for incoming network connection from another iPhone
running the same application.
2. The server socket has an ip address that i can register with
my php/mysql server.
3. Another iPhone running my same app acts as the client gets the
iPhone server's ip address from the server and make connection to
the server iPhone.
4. The client iPhone sends a string hello, I am James to the
server iPhone and the server iPhone reply with the user's choice
of either Hi, Nice to meet you or Get lost! strings.
ps. the port number i chose was 2048
This is all i am trying to accomplish, but i am making slow
progress and banging my head against the wall...
Any ideas/suggestions are greatly appreciated...
Thanx again...
James
On 2009/8/4, at 下午 11:50, Dave Camp wrote:
On Aug 4, 2009, at 5:43 AM, James Lin wrote:
Hi all,
Does anyone know the limitation of the iPhone simulator when it
comes to networking?
Is it crippled on the simulator?
I've tried two seperate ways of opening up a server socket.
By server socket, do you mean you are trying to connect to a
server somewhere, or that you are trying to open a low numbered
(i.e. 1024) port locally so that you can be a server?
The simulator cannot open low numbered ports for inbound
connections but iPhones running OS 3.0 and later can.
Dave
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Re: [iPhone] networking
On Tue, Aug 4, 2009 at 11:13 AM, Luke the Hiestermanluket...@apple.com wrote: On Aug 4, 2009, at 11:10 AM, James Lin wrote: Bonjour is for local area network, right? No, Bonjour is applicable to any networking, local or wide area. Here's some sample code. http://developer.apple.com/iphone/library/samplecode/BonjourWeb/index.html Well ad-hoc discovery only works on the local sub-net or across bridged sub-nets. To do service discovery across sub-nets would require a known DNS server publishing the existence of services and how to contact them via public IP addresses. -Shawn ___ 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
