hello there

i have a problem in c: i can set up a socket connection to another pc (on my lan) and then send messages and read from the remote site too. this works fine.

but when i try to connect to a host that is not on my lan (but connected trough a ppp interface) then i get a really weird error message:

it says:

error connectiong to host: Succes



the line that makes this happen is:

perror("error connecting to host");

and is only processed if the remote computer cannot be reached... (pointer equals NULL)
why does it say then "Success"?????? if i try to connect to a remote host that has no service i wish to access the error message says connection refused. that is ok.

do i have to care about routing explicitly in my program? (routing works fine) or why do i get this message???



any help is welcome

raven

The perror() function depends on the setting of the "errno" global variable (defined in "errno.h"). When you call perror("xxx"), it will print your message followed by a colon and a blank and then print text describing the error number that is in errno. If errno is zero, it prints "Success". errno is only good until the next system call. Did you do something else between the detection of the null pointer and the perror()
call?

hello

i did no do anything between the connection attempt and the error message.

i know how perror works, and thets why i wonderes about the outcomes...

btw: this error only happens when i connect to one host. i tryed another one recently, and there i had absolutely no pbroblems...

i wonder what the other machine was doing...

thanks anyway.

any further suggestion?

raven

It would be best if you included a sniplet of code.

At least a few lines before and after the connect() call.

Maybe the host is behind a firewall? Can you ping it? telnet to that port?

thanks alot. but the problem is solved now. i still dont know why it didnt work, but now it works.

secrets of coding :-)

thanks anyway :-)

bye

raven