On 19-May-22 04:38, Daniel Stenberg via curl-library wrote:
Although I suppose one could come up with some use cases, isn't this exactly equivalent to concatenating the multiple files into one? If it's not convenient to do this externally to the application, this is easily done by the application with a tempfile - more easily than by libcurl due to lifetime considerations.On Wed, 18 May 2022, TheAssassin via curl-library wrote:I could imagine that (maybe in addition) to that search path, libcurl could allow developers to specify a list of bundles.I don't see how it makes any functional difference if the app makes that search or if libcurl does it.Supporting more than one file is an interesting idea. This current single file restriction (except for OpenSSL which can have a directory of certs) is primarily because how the TLS libraries' APIs for doing certificate loading/verification. It could certainly be changed to support multiple files, but it would not be an inisignificant amount of work...
Roughly:bigbundle = tmpfile(); foreach bundle { open(); while read(bundle) {write(bigbundle)}. close(); }; seek(0), curl_setopt(CURL_CAINFO, /dev/fd/fileno(bigbundle)) ...
Such a temp file will go away at exit, or if bigbundle is closed. (knowing when to close it is what might be tricky for libcurl, depending on when the TLS library is done with the file.)
If the list is used more than once, creating the big bundle will be more efficient if done externally - even if libcurl tried to cache it, which would get messy.
If there were enough use cases to justify it, I guess concatenating files into a tempfile could be a libcurl convenience function... it doesn't seem like a a lot of work either way.
Timothe Litt ACM Distinguished Engineer -------------------------- This communication may not represent the ACM or my employer's views, if any, on the matters discussed.
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