system() or _popen()?

[Michael]

Hello,

I am currently writing a C++ app to ftp new files.
The C++ program will ftp to a server, get a list of files,
compate that to a list of files already received and ftp
the new files.

Was using DOS script with various calls to small C++ programs
but got very bulky and complex. Now, I am trying to write
one C++ program to do all of the work.

My question is can I use either system() or _popen to
call "ftp" and capture the return code? Also, if someone
has done something similar, it is easier to pipe the ftp
output to a file and look at it, or could I just read through
the buffer output?

Thanks much!

 

[Default User]

Hello,

I am currently writing a C++ app to ftp new files.
The C++ program will ftp to a server, get a list of files,
compate that to a list of files already received and ftp
the new files.

Was using DOS script with various calls to small C++ programs
but got very bulky and complex. Now, I am trying to write
one C++ program to do all of the work.

My question is can I use either system() or _popen to
call "ftp" and capture the return code?

If you want a portable C++ program, system() is the only thing
available. Otherwise, you are in the wrong group.

Also, if someone
has done something similar, it is easier to pipe the ftp
output to a file and look at it, or could I just read through
the buffer output?

How would you read through the output with system()?




Brian

 

[Michiel Salters]

How would you read through the output with system()?

Redirect the output of the controlled system, using the system's
facilities for that (e.g. > on most ommand lines) then read back
the created file, using ifstream.

Regards,
Michiel Salters