libcurl - SSL and GZIP

Steve Robbins

Hi, I'm pretty new to Onion - love the hardware, it's a really cool device

I'm trying to get a program running and have managed to get my head around the cross-compilation process and have C code running on device and could really do with some advice please!

The program uses a lib that in turn uses libcurl in a way that seems to cause problems. I can edit the lib source and alter the CURL options to get a bit further in the process of getting my program running, but the options themselves should be pretty standardm so I hoped there's a fairly simple answer that I just can't find.

SSL - hitting a secure API gave a CURL result_code of 77 - I could see certs in /etc/ssl/certs and linked the program appropriately as far as I can tell - using -lz -lcrypto -lssl -lmbedtls -lmbedx509 -lmbedcrypto -lcurl.
Is there some OS config, option or linking I am missing to allow libcurl and SSL?

For now I have added curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);, but that led to the next problem...

The lib has curl_easy_setopt(curl, CURLOPT_ACCEPT_ENCODING, "gzip");

with this line in, the response body is never decoded - it shows in the terminal as "�" - taking it out allows me to get the body.
I wondered if I am missing a link to a library or whether this might be an OS build option?

Thanks in advance,
Steve

cas

@Steve-Robbins
Not sure about the second problem, but you ought to be able to solve the first one with either:

opkg install ca-bundle

and/or:

opkg install ca-certificates

Steve Robbins

@cas said in libcurl - SSL and GZIP:

opkg install ca-bundle

Great, thanks @cas - opkg install ca-bundle sorted that first one!