Hi,
I was a little surprised to find that for some error codes, no error
message was placed in the buffer I had supplied with
CURLOPT_ERRORBUFFER. On re-reading the manual page, I had to admit that
it says "libcurl may store human readable error messages" without
expanding on the circumstances when it may or may not.
Could I suggest adding something along the lines of:
"The recommended way to get a human readable error message is as
follows. Before the performing transfer, store a null byte in the first
character of the buffer. After the transfer completes with a non-zero
CURLcode, check if the first byte of the buffer is still null - if not,
use the message which libcurl has placed there; if it is still null,
call curl_easy_strerror with the CURLcode to obtain a message."
--
Colin Hogben
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