libcurl and s3/minio

From: R C via curl-library <curl-library_at_lists.haxx.se>
Date: Tue, 26 Mar 2024 11:36:07 -0600

Hello,


I am trying to find out how to write something, using libcurl, to do
some io with a minio object store (s3 compatible)


I did go a bit through the examples page (some I have used as een
example for other projects), but could really find what I was looking
for. I did find a script that uses curl (the command) that seems to work

this is a code fragment, for what I try to write into C.


# Static Vars

DATE=$(date -R --utc)

CONTENT_TYPE='application/zstd'

SIG_STRING="GET\n\n${CONTENT_TYPE}\n${DATE}\n${MINIO_PATH}"

SIGNATURE=`echo -en ${SIG_STRING} | openssl sha1 -hmac ${PASSWORD}
-binary | base64`

PROTOCOL="https"


curl --insecure \

     -o "${OUT_FILE}" \

     -H "Host: $URL" \

     -H "Date: ${DATE}" \

     -H "Content-Type: ${CONTENT_TYPE}" \

     -H "Authorization: AWS ${USERNAME}:${SIGNATURE}" \

     ${PROTOCOL}://$URL${MINIO_PATH}


I saw an example called httpcustomheader, which came closest to what I'm
looking for I think.

thanks,

Ron

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Received on 2024-03-26