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SFTP Write/Read Callback mechanism

From: Krishnaraj <krishnaraj.d_at_kalkitech.in>
Date: Sun, 13 Aug 2017 20:50:05 +0530

Hi Guys,

I am using libcurl 7.44.0 in one application to upload to and download
files from SFTP server. I am refering the procedure from ftpget.c and
ftpupload.c samples. What will be memory requirements for
upload/download. I am asking this because the size of the files is not
known prior before calling curl API. In ftpget example, I could see that
in write callback the buffer is written to the file directly. Does it
mean that curl internally allocates memory for the complete file and the
callback gets triggered after obtaining complete file from remote server ?

Thanks & Regards,
*Krishnaraj D*

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Received on 2017-08-13