Can i create 4 sockets on same ip address with different portnumbers.
I am working on windows mobile.
I am working on windows mobile.
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Re: socket creation
udayahirwal2@gm ail.com wrote, On 05/05/08 14:24:You will have to ask in one of the Windows groups since this is systemCan i create 4 sockets on same ip address with different portnumbers.
I am working on windows mobile.
specific.
--
Flash Gordon
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Re: socket creation
On 5 May 2008 at 13:24, udayahirwal2@gm ail.com wrote:There's no reason why you shouldn't be able to. Why don't you post aCan i create 4 sockets on same ip address with different portnumbers.
I am working on windows mobile.
snippet of whatever code isn't working?
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Re: socket creation
udayahirwal2@gm ail.com writes:By now you may have seen a followup from "Antoninus Twink" invitingCan i create 4 sockets on same ip address with different portnumbers.
I am working on windows mobile.
you to post your code here. Please don't. You'll get much better
answers if you post to a newsgroup that discusses your operating
system. Sockets are not a feature of the C language.
--
Keith Thompson (The_Other_Keit h) <kst-u@mib.org>
Nokia
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
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Re: socket creation
On May 5, 2:24 pm, udayahirw...@gm ail.com wrote:Yes, you certainly can, and you can do it portably so that your codeCan i create 4 sockets on same ip address with different portnumbers.
I am working on windows mobile.
will compile for Linux, Windows, Solaris, Playstation 3, what have
you.
You'll need to use a cross-platform library for doing so, the big two
being pCap and "Berkeley sockets".
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Re: socket creation
In article <4458e116-2d6d-4554-aa4d-9616d2df4344@l4 2g2000hsc.googl egroups.com>,
=?ISO-8859-1?Q?Tom=E1s_=D3 _h=C9ilidhe?= <toe@lavabit.co mwrote:>On May 5, 2:24=A0pm, udayahirw...@gm ail.com wrote:>Can i create 4 sockets on same ip address with different portnumbers.
>I am working on windows mobile.>Yes, you certainly can, and you can do it portably so that your code
>will compile for Linux, Windows, Solaris, Playstation 3, what have
>you.If by pCap you refer to http://sourceforge.net/projects/libpcap/>You'll need to use a cross-platform library for doing so, the big two
>being pCap and "Berkeley sockets".
then:
Operating System : All POSIX (Linux/BSD/UNIX-like OSes)
There is WinPcap, which appears to be a port that extends support
to MS Windows.
But to my mind, "what have you" includes operating systems such
as PalmOS, which is not Posix nor MS Windows, but does include
TCP/IP. Your "what have you" appears to be overly general.
--
"They called it golf because all the other four letter words
were taken." -- Walter Hagen
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Re: socket creation
Walter Roberson wrote, On 05/05/08 18:37:The Windows implementation of sockets is not quite the same as theIn article <4458e116-2d6d-4554-aa4d-9616d2df4344@l4 2g2000hsc.googl egroups.com>,
=?ISO-8859-1?Q?Tom=E1s_=D3 _h=C9ilidhe?= <toe@lavabit.co mwrote:>>On May 5, 2:24=A0pm, udayahirw...@gm ail.com wrote:>>Can i create 4 sockets on same ip address with different portnumbers.
>>I am working on windows mobile.>>Yes, you certainly can, and you can do it portably so that your code
>will compile for Linux, Windows, Solaris, Playstation 3, what have
>you.>You'll need to use a cross-platform library for doing so, the big two
>being pCap and "Berkeley sockets".
Berkeley implementation.
It does. However, WinCE, sorry, Windows Mobile, is *not* the same asIf by pCap you refer to http://sourceforge.net/projects/libpcap/
then:
>
Operating System : All POSIX (Linux/BSD/UNIX-like OSes)
>
There is WinPcap, which appears to be a port that extends support
to MS Windows.
Windows.
In particular I don't believe pcap supports the target of interest toBut to my mind, "what have you" includes operating systems such
as PalmOS, which is not Posix nor MS Windows, but does include
TCP/IP. Your "what have you" appears to be overly general.
the OP. Asking on a Windows Mobile group would be the OPs best recourse
as has already been mentioned.
--
Flash Gordon
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Re: socket creation
Tomás Ó hÉilidhe wrote:Please don't reply to such off-topic queries other than to redirectudayahirw...@gm ail.com wrote:
>>>Can i create 4 sockets on same ip address with different
>portnumbers. I am working on windows mobile.
Yes, you certainly can, and you can do it portably so that your
code will compile for Linux, Windows, Solaris, Playstation 3,
what have you.
>
You'll need to use a cross-platform library for doing so, the
big two being pCap and "Berkeley sockets".
the queryier to an appropriate newsgroup. This has nothing to do
with C, and should go to some sort of windows newsgroup.
--
[mail]: Chuck F (cbfalconer at maineline dot net)
[page]: <http://cbfalconer.home .att.net>
Try the download section.
** Posted from http://www.teranews.com **
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Re: socket creation
"Tomás Ó hÉilidhe" <toe@lavabit.co mwrote in message
news:4458e116-2d6d-4554-aa4d-9616d2df4344@l4 2g2000hsc.googl egroups.com...
On May 5, 2:24 pm, udayahirw...@gm ail.com wrote:>>Can i create 4 sockets on same ip address with different portnumbers.
>I am working on windows mobile.
Yes, you certainly can, and you can do it portably so that your code
will compile for Linux, Windows, Solaris, Playstation 3, what have
you.
>
You'll need to use a cross-platform library for doing so, the big two
being pCap and "Berkeley sockets".
how about this:
cross-platform socket support is just a few #ifdef's away...
sadly, IME, this is often one of the "best" ways to do inter-OS portability,
namely because, most often, these cross-platform libraries, are rarely if
ever present, and even then, usually only support a few platforms and do
things that would not be so hard to pull off, simply by using ifdef's or or
occasionally swapping out source files...
Linux, Windows, and Solaris:
this should actually be fairly easy with ifdef's, since they use fairly
similar sockets interfaces.
PS3 should be likewise, since AFAIK the thing is just running linux,
likewise for XBox (modified windows core).
WinCE is also, likewise, windows... what ever differences there are in terms
of API calls, are usually noted in the help files (usually, it is
differences along the lines of special flags working, and others having no
effect, ...).
other further systems, depends on what is provided.
IMO, "universal portability" is an ill-advised goal anyways. often I have
seen a lot more damage than good done this route. usual worst case: the code
has to be ported.
worst case, if one depends too heavily on some ill-fated portability
library:
much of the app ends up having to be discarded or rewritten...
my personal advice is too keep as much platform-specific machinery as is
reasonable in small, easily replacable, source files. these can provide a
kind of app-specific portability layer.
in this case, moving between the platforms is usually a matter of using
different source files, and moving to a new one may involve tweaking the
existing ones or adding a few new ones.
this usually works a lot better than it is given credit for...
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Re: socket creation
"CBFalconer " <cbfalconer@yah oo.comwrote in message
news:481F95E9.5 60EE628@yahoo.c om...likely, one can't expect most newbs to really know the difference.Tomás Ó hÉilidhe wrote:>>udayahirw...@g mail.com wrote:
>>>>>>Can i create 4 sockets on same ip address with different
>>portnumbers . I am working on windows mobile.
>Yes, you certainly can, and you can do it portably so that your
>code will compile for Linux, Windows, Solaris, Playstation 3,
>what have you.
>>
>You'll need to use a cross-platform library for doing so, the
>big two being pCap and "Berkeley sockets".
Please don't reply to such off-topic queries other than to redirect
the queryier to an appropriate newsgroup. This has nothing to do
with C, and should go to some sort of windows newsgroup.
>
"well, I am writing in C, may as well ask the C people".
after all, many other languages (such as Java and C#, among others) include
things like sockets as part of the language, rather than as a 3rd party.
more so, a newb may not realize that most of what exists "in C" is 3rd
party, rather than being a part of the "C language".
more so, we can note that most people, may well think of programming
languages in analogy to natural languages (such as English), where a natural
language has in its propiety pretty much every concept expressable within
the language, rather than, say, the language owning the grammar, and all of
the pieces of the lexicon being 3rd party add-ons (to lookup a word, one has
to find the right dictionary for the right topic).
so, maybe one need not be too hard on newbs, or on people at least trying to
give worthwhile answers, even if not strictly on topic...
--
[mail]: Chuck F (cbfalconer at maineline dot net)
[page]: <http://cbfalconer.home .att.net>
Try the download section.
>
>
** Posted from http://www.teranews.com **
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Re: socket creation
Flash Gordon <spam@flash-gordon.me.ukwri tes:
He already had his answer. Why do you assume to be answering for otherudayahirwal2@gm ail.com wrote, On 05/05/08 14:24:>>Can i create 4 sockets on same ip address with different portnumbers.
>I am working on windows mobile.
You will have to ask in one of the Windows groups since this is system
specific.
peoples? Do you think no C programmers here have experience in real
world programs?
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Re: socket creation
On May 6, 12:25 am, "cr88192" <cr88...@NOSPAM .hotmail.comwro te:
how about this:
cross-platform socket support is just a few #ifdef's away...
>
sadly, IME, this is often one of the "best" ways to do inter-OS portability,
namely because, most often, these cross-platform libraries, are rarely if
ever present, and even then, usually only support a few platforms and do
things that would not be so hard to pull off, simply by using ifdef's or or
occasionally swapping out source files...
Berkeley sockets is as common as white bread. Recently I was looking
into developing a networking application before I sparked a deeper
interest in embedded systems. When I asked around as to what network
library to use, I only got two responses: Berekeley Sockets or pCap.
Asking about the two, I was told that Berkeley Sockets is the bread
and butter of doing TCP or UDP communication. I was told that it's the
most implemented, most portable. I was told that if *any* network
library was available for a certain system, then Berkeley Sockets was.
pCap and the other hand is more suitable for Datalink Layer stuff,
e.g. analysing frames and handcrafting your own frames.
Linux, Windows, and Solaris:
this should actually be fairly easy with ifdef's, since they use fairly
similar sockets interfaces.
I'd got with Berekeley Sockets. Way easier, way less bug-prown to work
with.
PS3 should be likewise, since AFAIK the thing is just running linux,
likewise for XBox (modified windows core).
Berkeley again.
WinCE is also, likewise, windows... what ever differences there are in terms
of API calls, are usually noted in the help files (usually, it is
differences along the lines of special flags working, and others having no
effect, ...).
>
other further systems, depends on what is provided.
Again I'd go with Berkeley.
IMO, "universal portability" is an ill-advised goal anyways. often I have
seen a lot more damage than good done this route. usual worst case: the code
has to be ported.
I myself think cross-platform development is fantastic. Look at
Mozilla Firefox or Mozilla Thunderbird. I'd love to write an
application once and to have it work on all sorts of systems.
worst case, if one depends too heavily on some ill-fated portability
library:
much of the app ends up having to be discarded or rewritten...
You can make an allegation of "ill-fated" against any library. Things
like Berkeley Sockets and wxWidgets aren't about to die out -- they're
thriving.
my personal advice is too keep as much platform-specific machinery as is
reasonable in small, easily replacable, source files. these can provide a
kind of app-specific portability layer.
I beg to differ.
in this case, moving between the platforms is usually a matter of using
different source files, and moving to a new one may involve tweaking the
existing ones or adding a few new ones.
>
this usually works a lot better than it is given credit for...
But it involves writing more than one chunk of code, which in turn can
result in a bug only being present on one kind of system.
There's a great book for cross-platform programming entitled "Cross-
platform development in C++".
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Re: socket creation
Hello List
I am working with this one:
Support lots of Unix's, Windows, Linux and MAC OS X. Just fine to me.
Regards
Rafael
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Re: socket creation
Eligiusz Narutowicz <eligiuszdotnar u@hotmail.comwr ote:Flash Gordon <spam@flash-gordon.me.ukwri tes:I could walk into a local 7-Eleven and run into people who could answer the>udayahirwal2@gm ail.com wrote, On 05/05/08 14:24:You will have to ask in one of the Windows groups since this is systemCan i create 4 sockets on same ip address with different portnumbers.
I am working on windows mobile.
specific.
He already had his answer. Why do you assume to be answering for other
peoples? Do you think no C programmers here have experience in real
world programs?
question. The problem is that if he is wrong, what are the odds somebody
else in the store will be able to correct him?
It's a favor to the OP to direct him to a proper newsgroup, where he can
obtain _better_ advice, not just _any_ advice.
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Re: socket creation
cr88192 <cr88192@nospam .hotmail.comwro te:
<snip>It's a disservice to answer off-topic questions, because it's misleading theso, maybe one need not be too hard on newbs, or on people at least trying
to give worthwhile answers, even if not strictly on topic...
OP. The OP may or may not get a correct or sufficient answer. But he most
assuredly will lose the benefit of the remainder of the group critiquing and
commenting on the accuracy of any answer.
Such a benefit is what makes Usenet distinct from Google. That distinction
may be lost on people who think Usenet is just a way to get other people to
do your own work for you, or who have poor research/Googling skills. All the
more reason to make sure they realize what can actually be had, other than
quick and shoddy answers.
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